SORIN CRM VR124 Implantable cardioverter defibrillator User Manual Manual EU INTENSIA VR124 U148
SORIN CRM Implantable cardioverter defibrillator Manual EU INTENSIA VR124 U148
Manual EU INTENSIA VR124_U148
Implant manual Implantable cardioverter defibrillator VR model 124 blank blank TABLE OF CONTENTS 1. General description................................................................................................................ 5 2. Indications............................................................................................................................... 6 3. Contraindications.................................................................................................................... 7 4. 4.1. 4.2. 4.3. 4.4. 4.5. Warnings and precautions.....................................................................................................8 Risks related to medical environment.......................................................................................9 Sterilization, storage and handling..........................................................................................10 Implantation and device programming....................................................................................10 Lead evaluation and lead connection......................................................................................11 Generator explant and disposal..............................................................................................12 5. 5.1. Adverse events...................................................................................................................... 13 Defender study........................................................................................................................ 13 6. 6.1. Clinical studies...................................................................................................................... 15 Defender study........................................................................................................................ 15 7. 7.1. 7.2. Patient selection and treatment...........................................................................................18 Individualization of treatment..................................................................................................18 Specific patient populations....................................................................................................19 8. Patient counselling information..........................................................................................20 9. Conformance to standards..................................................................................................21 10. 10.1. 10.2. 10.3. Physician guidelines.............................................................................................................24 Physician training.................................................................................................................... 24 Directions for use.................................................................................................................... 24 Maintaining device quality.......................................................................................................24 11. Patient information...............................................................................................................25 12. How supplied......................................................................................................................... 26 12.1. Sterility.................................................................................................................................... 26 12.2. Warranty and replacement policy............................................................................................26 13. Device description................................................................................................................ 27 14. Implant procedure.................................................................................................................29 14.1. Necessary equipment.............................................................................................................29 14.2. Packaging............................................................................................................................... 29 14.3. Optional equipment................................................................................................................. 29 14.4. Before opening the package...................................................................................................29 14.5. Prior to implantation................................................................................................................ 30 14.6. Device placement.................................................................................................................... 30 14.7. Choosing the type of lead.......................................................................................................30 14.8. Shock configuration (+ -> -).....................................................................................................31 14.9. Measurement of thresholds at implant....................................................................................31 14.10.Lead connection ..................................................................................................................... 31 14.11. Device implantation.................................................................................................................33 14.12.Tests and programming...........................................................................................................33 15. 15.1. 15.2. 15.3. Special modes....................................................................................................................... 34 Safety mode (nominal values).................................................................................................34 Magnet mode.......................................................................................................................... 34 Response in the presence of interference..............................................................................34 SORIN – INTENSIA VR 124 – U153A 15.4. Detection characteristics in the presence of electromagnetic fields........................................35 15.5. Protection against short-circuits..............................................................................................35 16. 16.1. 16.2. 16.3. 16.4. 16.5. 16.6. Main functions....................................................................................................................... 36 Automatic lead measurements................................................................................................36 Ventricular tachyarrhythmia management...............................................................................36 Pacing..................................................................................................................................... 36 Sensing................................................................................................................................... 36 Follow-up function................................................................................................................... 37 Remote Monitoring function....................................................................................................37 17. 17.1. 17.2. 17.3. 17.4. 17.5. Patient follow-up................................................................................................................... 40 Follow-up recommendations...................................................................................................40 Holter Function........................................................................................................................ 40 Recommended Replacement Time (RRT)..............................................................................41 Explantation............................................................................................................................ 41 Defibrillator identification.........................................................................................................42 18. Physical characteristics.......................................................................................................43 18.1. Materials used......................................................................................................................... 43 19. 19.1. 19.2. 19.3. Electrical characteristics......................................................................................................44 Table of delivered shock energy and voltage..........................................................................44 Battery..................................................................................................................................... 44 Longevity................................................................................................................................. 45 20. 20.1. 20.2. 20.3. 20.4. Programmable parameters...................................................................................................46 Antibradycardia pacing............................................................................................................46 Ventricular tachyarrhythmia detection.....................................................................................47 Ventricular tachyarrhythmia therapies.....................................................................................48 Remote alerts and warnings...................................................................................................51 21. Non programmable parameters...........................................................................................53 22. Limited warranty................................................................................................................... 54 22.1. Article 1 : Terms of limited warranty........................................................................................54 22.2. Article 2 : Terms of replacement..............................................................................................55 23. Patents................................................................................................................................... 56 24. Explanation of symbols........................................................................................................57 SORIN – INTENSIA VR 124 – U153A 1. GENERAL DESCRIPTION 1. GENERAL DESCRIPTION INTENSIA VR 124 is an implantable single-chamber cardioverter defibrillator. It is equipped with an accelerometer to allow adaptation of pacing to suit the patient’s activity. INTENSIA VR 124 is also equipped with the RF wireless technology which enables to remotely monitor the patients who have the Sorin SMARTVIEW Monitor installed at home. INTENSIA VR 124 provides high energy shocks (42 J) for enhanced safety, as well as automatic lead measurements to monitor system integrity. INTENSIA VR 124 is protected against high-frequency signals emitted by cellular telephones. SORIN – INTENSIA VR 124 – U153A 2. INDICATIONS 2. INDICATIONS INTENSIA VR 124 is indicated for use in patients who are at high risk of sudden cardiac death due to ventricular tachyarrhythmias and who have experienced one of the following situations: ─ Survival of at least one episode of cardiac arrest (manifested by the loss of consciousness) due to ventricular tachyarrhythmia, ─ Recurrent, poorly tolerated sustained ventricular tachycardia (VT). NOTE: The clinical outcome for hemodynamically stable VT patients is not fully known. Safety and effectiveness studies have not been conducted. SORIN – INTENSIA VR 124 – U153A 3. CONTRAINDICATIONS 3. CONTRAINDICATIONS Implantation of INTENSIA VR 124 is contraindicated in patients: ─ whose ventricular tachyarrhythmias may have transient or reversible causes such as: acute myocardial infarction, digitalis intoxication, drowning, electrocution, electrolyte imbalance, hypoxia, sepsis, or unstable ischemic episodes, ─ who present incessant tachyarrhythmia, ─ who have an internal pacemaker, ─ whose primary disorder is bradyarrhythmias, or atrial tachyarrhythmias. SORIN – INTENSIA VR 124 – U153A 4. WARNINGS AND PRECAUTIONS 4. WARNINGS AND PRECAUTIONS The patient should be warned of the potential risks of defibrillator malfunction if he is exposed to external magnetic, electrical, or electromagnetic signals. These potential interference sources may cause conversion to inhibited mode (because of noise detection), erratic delivery of VT or VF therapies, nominal programming, or much more rarely, irreversible damage to the device’s circuits. The main sources of high magnitude electromagnetic interference (EMI) are: powerful radiofrequency equipment (radar), industrial motors and transformers, induction furnaces, resistance, arc-welding equipment and high power loudspeakers. Resuscitation Availability: Do not perform device testing unless an external defibrillator and medical personnel skilled in cardiopulmonary resuscitation (CPR) are readily available. Electrical Isolation: Do not permit the patient to contact grounded equipment that could produce hazardous leakage current. Ensuing arrhythmia induction could result in the patient’s death. Disable the ICD During Handling: Program Shock Therapy to OFF during surgical implant and explant or post mortem procedures. The device can deliver a serious high energy shock should accidental contact be made with the defibrillation electrodes. Antitheft gates: Since antitheft devices at the entrance to stores are not subject to any safety standards, it is advisable to spend as little time as possible in their vicinity. Airport detection systems: Since airport detection systems are not subject to any safety standards, it is advisable to spend as little time as possible in their vicinity. High voltage power transmission lines: High voltage power transmission lines may generate enough EMI to interfere with defibrillator operation if approached too closely. Communication equipment: Communication equipment such as microwave transmitters, linear power amplifiers, or highpower amateur transmitters may generate enough EMI to interfere with defibrillator operation if approached too closely. Home appliances: Home appliances that are in good working order and properly grounded do not usually produce enough EMI to interfere with defibrillator operation. There are reports of device disturbances caused by electric hand tools or electric razors used directly over the device implant site. SORIN – INTENSIA VR 124 – U153A 4. WARNINGS AND PRECAUTIONS CAUTION: Do not tap sharply on the ICD can after implant, because the ICD's sensing circuits can detect this as R-waves, and such oversensing could result in inappropriate pacing, inhibition, or therapy. Normal activities after implant do not result in such oversensing. 4.1. RISKS RELATED TO MEDICAL ENVIRONMENT It is advisable to carefully monitor defibrillator operation prior to and after any medical treatment during which an electrical current from an external source passes through the patient's body. Magnetic Resonance Imaging: MRI is strictly contraindicated in cardiac defibrillator patients. Radiofrequency ablation: A radiofrequency ablation procedure in a patient with a generator may cause device malfunction or damage. RF ablation risks may be minimized by: 1. Programming Shock Therapy and ATP to OFF. 2. Avoiding direct contact between the ablation catheter and the implanted lead or generator. 3. Positioning the ground, placing it so that the current pathway does not pass through or near the device, i.e. place the ground plate under the patient’s buttocks or legs. 4. Having external defibrillation equipment available. Electrocautery or diathermy device: Diathermy and electrocautery equipment should not be used. If such devices must be used: 1. Keep the current path and ground plate as far away from the device and the lead as possible (a minimum of 15 cm [six inches]). 2. Before procedure, disable ATP and shock therapies. 3. During the procedure, keep the electrocautery device as far as possible from the cardiac defibrillator. Set it at minimum intensity. Use it briefly. 4. After the procedure, check for proper implant function. The device should never be exposed directly to the diathermy source. External defibrillation: INTENSIA VR 124 is protected from external defibrillation shocks. 1. Before external defibrillation, disable ATP and shock therapies. 2. During external defibrillation, it is advisable to avoid placing the defibrillating paddles directly over the casing or over the lead. The defibrillating paddles should preferably be placed in an anteroposterior position. 3. Avoid any direct contact between the defibrillation paddles and the conductive parts of the implanted leads or casing of the implanted device. 4. After external defibrillation, check for proper device function. Radiation therapy: Avoid exposure to ionizing radiation. Betatrons are contraindicated. If high doses of radiation therapy cannot be avoided, the defibrillator should be protected from direct exposure with a protection shield. ATP and shock therapies should be disabled during exposure and proper device function should be checked regularly afterwards. Resulting damage may not be SORIN – INTENSIA VR 124 – U153A 4. WARNINGS AND PRECAUTIONS immediately detectable. If irradiation of tissues close to the implantation site is necessary, it is recommended that the cardiac defibrillator be moved. As a safety measure, an external defibrillator should be immediately available. Lithotripsy: Lithotripsy may permanently damage the device if it is at the focal point of the lithotripsy beam. If lithotripsy must be used, keep the defibrillator at least 2.5 to 5 cm (1-2 inches) away from the focal point of the lithotripsy beam. Diagnostic ultrasound (echography): The defibrillator is not affected by ultrasound imaging devices. Scales with body fat monitors and electronic muscle stimulators: A patient with an implanted INTENSIA VR 124 should not use these devices. 4.2. STERILIZATION, STORAGE AND HANDLING Resterilization: Do not resterilize and re-implant explanted ICDs. "Use Before" Date: A "Use Before" date is printed on the outer storage package and on the sterile package. Do not implant the device after this date because the battery may have reduced longevity and sterility may be affected. It should be returned to Sorin. If Package is damaged: Do not use the device or accessories if the packaging is wet, punctured, opened or damaged because the integrity of the sterile packaging may be compromised. Return the device to the manufacturer. Device Storage: Store the device in a clean area, away from magnets, kits containing magnets, and sources of electromagnetic interference to avoid device damage. Store the device between 0 - 50 °C (32 - 122 °F). Temperatures outside the specified range may damage the device. Equilibration: Allow the device to reach room temperature before programming or implanting the device because rapid temperature changes may affect initial device function. 4.3. IMPLANTATION AND DEVICE PROGRAMMING Use only a Sorin programmer to communicate with the device. Do not inadvertently position any magnet over the ICD; this suspends tachyarrhythmia detection and treatment. Replace the device when the RRT (Recommended Replacement Time*) point (defined by a battery voltage of 2.66 ± 0.01 V or a magnet rate lower than or equal to 80 bpm) is reached. Program device parameters such as sensitivity threshold and VT and VF detection intervals as specified in the device manuals. Lead System: Do not use a lead system other than those with demonstrated compatibility because undersensing cardiac activity and failure to deliver necessary therapy may result. 10 SORIN – INTENSIA VR 124 – U153A 4. WARNINGS AND PRECAUTIONS In situations where an ICD and a pacemaker are implanted in the same patient, interaction testing should be completed. If the interaction between the ICD and the pacemaker cannot be resolved through repositioning of the leads or reprogramming of either the pacemaker or the ICD, the pacemaker should not be implanted (or should be explanted if previously implanted). Failure to properly insert the torque screwdriver into the perforation at an angle perpendicular to the connector receptacle may result in damage to the sealing system and its self-sealing properties. It is recommended that a security margin of at least 10 J be demonstrated between the effective shock energy and maximum programmable energy. Carefully confirm that true ventricular fibrillation has been induced because the DFT for ventricular tachycardia or flutter may be lower. The defibrillator should be implanted with the engraved side facing outwards in order to facilitate telemetric communication with the programming head and to display the radiographic identification correctly. *: corresponds to ERI (Elective Replacement Indicator) previously used. 4.4. LEAD EVALUATION AND LEAD CONNECTION INTENSIA VR 124 has one DF-4 connector port. DF-4 refers to the international standard for defibrillation lead connectors (ISO 27186:2010). Do not use the device with leads which have not been positively tested. Do not tie a ligature directly to the lead body, tie it too tightly, or otherwise create excessive strain at the insertion site as this may damage the lead. Use the lead stabilizer to secure the lead lateral to the venous entry site. Do not immerse the lead in mineral oil, silicone oil, or any other liquid. Do not grip the lead with surgical instruments. Do not use excessive force or surgical instruments to insert a stylet into a lead. Use ventricular transvenous leads with caution in patients with either a mechanical or bioprosthetic tricuspid valvular prosthesis. Use the correct suture sleeve (when needed) , to immobilize the lead and protect it against damage from ligatures. Never implant the system with a lead system that has a measured shock impedance of less than 30 ohms. A protection circuit in the defibrillator prevents shock delivery when impedance is too low. If the shock impedance is less than 30 ohms, reposition the lead system to allow a greater distance between the electrodes. Do not kink leads. Kinking leads may cause additional stress on the leads, possibly resulting in lead fracture. Do not insert a lead connector pin into the connector block without first visually verifying that the setscrews are sufficiently retracted. Do not tighten the setscrews unless a lead connector pin is inserted because it could damage the connector block. Lead electrodes in contact during a cardioversion or defibrillation therapy will cause current to bypass the heart, possibly damaging the ICD and the lead. While the ICD is connected to the lead, make sure that the metal portions of any electrodes do not touch each other. If a pacing lead is abandoned rather than removed, it must be capped to ensure that it is not a pathway for currents to or from the heart. If a thoracotomy is required to place epicardial patches, it should be done during a separate procedure to reduce the risk of morbidity and mortality. SORIN – INTENSIA VR 124 – U153A 11 4. WARNINGS AND PRECAUTIONS Do not place the patch lead over nerve tissue as this may cause nerve damage. Place the patch lead with the conducting coil side facing the heart to ensure delivery of energy to the heart. Place the sutures well outside the coil of the patch lead or in the area between the coils to avoid possible coil fracture. If countershock is unsuccessful using external paddles, adjust the external paddle position (e.g., anterior-lateral to anterior-posterior) and be sure that the external paddle is not positioned over the patch. Do not fold, alter, or remove any portion of the patch as it may compromise electrode function or longevity. If a header port is unused on the generator, the port must be plugged to protect the generator. 4.5. GENERATOR EXPLANT AND DISPOSAL Interrogate the device, and program shock therapy off prior to explanting, cleaning or shipping the device to prevent unwanted shocks. Return all explanted generators and leads to the manufacturer. Never incinerate the device due to the potential for explosion. The device must be explanted before cremation. 12 SORIN – INTENSIA VR 124 – U153A 5. ADVERSE EVENTS 5. ADVERSE EVENTS Clinical data presented in this section are from the Defender study. INTENSIA VR 124 is similar in design and function to the Defender devices. The data provided are applicable to INTENSIA VR 124. 5.1. DEFENDER STUDY Clinical study of Defender IV DR 612 included 60 devices implanted in 60 patients, 38 in Europe (37 patients followed for a minimum of 3 months), and 22 in the U.S. (IDE G970282/S15) with a total device exposure of 228.7 and 30.3 device months, respectively. No deaths, serious adverse experiences or complications were judged to be device-related, as determined by the investigator. The following tables summarize the safety data for this study. There was 1 death in the study that was classified as arrhythmic. The cause of death was recurrent VT/VF which occurred 19 days post implant. In the following tables, complications are defined as adverse device effect, which cannot be treated or resolved by simple adjustments (e.g. reprogramming) and requires intervention. NOTE: The company classified as complications those adverse device effects that were treated with surgery or with external defibrillation of a ventricular cardiac event. Observations are defined as symptomatic or asymptomatic clinical events with potential adverse device effects that do not require intervention or can be corrected by simple adjustments. NOTE: The company classified as observations those adverse device effects that were treated with programming changes, medication, or other method that was not classified as a complication. Two of the 38 Defender IV DR 612 patients in Europe (37 patients followed for a minimum of 3 months) experienced a total of three complications, including device failures and replacements. Fourteen of the 38 Defender IV DR 612 patients experienced a total of 18 observations. Complications and observations are reported in Tables 1 and 2. It should be noted that a patient can have more than one observation or complication. There were no observations or complications in the U.S. Table 1: Summary of European Clinical Complications (Including Device Failures and Replacements) All complications, 2 of 38 Defender IV DR 612 patients in Europe Event # of Patients % of Patients # of Events Events/100 Device-Years* Hematoma 2.6 5.2 Ventricular lead migration/dislodgment 5.3 10.5 * There were 228.7 device months in this study. Table 2: Summary of European Clinical Complications (Including Patient Complaints) All complications, 14 of 38 Defender IV DR 612 patients in Europe SORIN – INTENSIA VR 124 – U153A 13 5. ADVERSE EVENTS Event # of Patients* % of Patients # of Events Events/100 DeviceYears** Change in ventricular sensing threshold 2.6 1° 5.2 Device reset*** 2.6 1° 5.2 Inappropriate therapy for EMI 2.6 1° 5.2 Pneumothorax 2.6 1° 5.2 Pocket hematoma 5.3 2° 10.5 Pocket infection/hematoma 2.6 1° 5.2 Pocket infection from previous pacemaker 2.6 1° 5.2 Prolonged implant procedure 2.6 5.2 Sensor acceleration during telemetry*** 2.6 5.2 Shock for VT in VF Zone 2.6 1° 5.2 Slow VT not converted by ATP therapy 2.6 2° 10.5 Unsatisfactory sensing threshold test*** 5.3 10.5 Ventricular oversensing 7.9 15.7 * A patient can have more than one observation. ** There were 228.7 device months in this study. ***These observations would not have happened with the currently marketed device and programmer. °Investigator indicated that Defender IV DR did not cause or contribute to the event. 14 SORIN – INTENSIA VR 124 – U153A 6. CLINICAL STUDIES 6. CLINICAL STUDIES Clinical data presented in this section are from the Defender study. INTENSIA VR 124 is similar in design and function to the Defender devices. The data provided are applicable to INTENSIA VR 124. 6.1. DEFENDER STUDY Objectives: The primary objectives of this study were to demonstrate a complication free rate (CFR) comparable to that of historical controls, to demonstrate, using a chronotropic assessment exercise protocol (CAEP), a rate response proportional to and appropriate for the level of exercise, and to evaluate and report the incidence of adverse events. Materials: Each patient received one Defender IV DR 612 defibrillator, an atrial pacing and sensing lead, and a Medtronic, Angeion, or Biotronik defibrillation lead in the U.S. or any commercially available defibrillator lead outside the U.S. Methods: Investigators selected patients who survived at least one episode of cardiac arrest (manifested by loss of consciousness) presumably due to a ventricular tachyarrhythmia or exhibited recurrent, poorly tolerated, sustained ventricular tachycardia (VT). The protocol required evaluation of performance and adverse events at pre-discharge, one month, three months, six months, and (in the U.S.) every three months thereafter. At the one-month visit, eligible patients performed a chronotropic assessment exercise protocol (CAEP) maximal exercise test. Study Population. The table below summarizes inclusions. Region Date of first implant Date of last implant Data cut-off date Number of centers Number of patients US 14-Dec-99 08-Mar-00 14-Mar-00 22 Europe 04-May-99 26-Jul-99 14-Apr-00 11 38 All 6.1.1 . 04-May-99 08-Mar-00 14-Apr-00 (Eur), 17 14-Mar-00 (US) 60 Complication-free rate Only European patients followed for at least 3 months: Symbol Parameter Defender IV DR 612 Overall number of patients 37 Pe*N Number of successes 35 SORIN – INTENSIA VR 124 – U153A 15 6. CLINICAL STUDIES Pe Observed experimental proportion 0.95 Ps Null hypothesis success rate 0.76 ES Estimated standard error of Pe 0.04 z´ Test statistic (1) 4.75 Associated p-value < 0,0001 (1) Statistical test: z´ = (Pe-Ps)/SE where SE = sqrt(Pe(1-Pe)/N) 6.1.2 . Rate response European patients only: GROUP Number of patients included Mean slope %SRR on %MR STD of slopes %SRR on %MR SE of mean Lower 95% slope %SRR CI on %MR Upper 95% CI Europe 20 0.77 0.17 0.04 0.69 0.84 Small Centers 0.79 0.18 0.06 0.67 0.91 Large Centers 11 0.75 0.15 0.05 0.66 0.84 Males 17 0.77 0.16 0.04 0.70 0.85 Females 0.73 0.22 0.13 0.47 0.98 SRR: Sensor Rate Reserve MR: Metabolic Reserve STD: Standard Deviation SE: Standard Error CI: Confidence Interval 6.1.3 . 16 Adverse events Event US (N=22) Number of events* Number of patients Percent of patients Intent to treat but did not 0.0 Non-device related death 0.0 Explant 0.0 Complication 0.0 Observation 0.0 Serious non-related other than death 4.5 SORIN – INTENSIA VR 124 – U153A 6. CLINICAL STUDIES Event Europe (N=38) Number of events* Number of patients Percent of patients Intent to treat but did not 0.0 Non-device related death 2.6 Explant 2.6 Complication 5.3 Observation 18 14 36.8 Serious non-related other than death 12 18.4 Event All (N=60) Number of events* Number of patients Percent of patients Intent to treat but did not 0.0 Non-device related death 1.7 Explant 1.7 Complication 3.3 Observation 18 14 23.3 Serious non-related other than death 13 13.3 * A patient can have more than one complication, observation, or serious adverse event, not device-related. Device Failures and Replacements: No device failures or replacements occurred with Defender IV DR 612 during the study. SORIN – INTENSIA VR 124 – U153A 17 7. PATIENT SELECTION AND TREATMENT 7. PATIENT SELECTION AND TREATMENT 7.1. INDIVIDUALIZATION OF TREATMENT Exercise stress testing: If the patient’s condition permits, use exercise stress testing to: ─ Determine the maximum rate of the patient’s normal rhythm, ─ Identify any supraventricular tachyarrhythmias, ─ Identify exercise-induced tachyarrhythmias. The maximum exercise rate or the presence of supraventricular tachyarrhythmias may influence selection of programmable parameters. Holter monitoring or other extended ECG monitoring also may be helpful. CAUTION: To avoid inappropriate therapy during an exercise stress test, do not reprogram any parameter during the test. When a parameter is reprogrammed, "Discrimination" algorithm forces acceleration to "ventricular". During conducted sinus tachycardia within the programmed Tachy zone, the device detects a 1:1 fast rhythm. Assuming that acceleration was set to ventricular by reprogramming, the device may identify this as a VT, and may immediately apply the corresponding therapy. Electrophysiologic (EP) testing: EP testing may be useful for ICD candidates. EP testing may identify the classifications and rates of all the ventricular and atrial arrhythmias, whether spontaneous or during EP testing. Drug resistant supraventricular tachyarrhythmias (SVTs): Drug resistant supraventricular tachyarrhythmias (SVTs) may initiate frequent unwanted device therapy. A careful choice of programming options is necessary for such patients. Antiarrhythmic drug therapy: If the patient is being treated with antiarrhythmic or cardiac drugs, the patient should be on a maintenance drug dose rather than a loading dose at the time of ICD implantation. If changes to drug therapy are made, repeated arrhythmia inductions are recommended to verify ICD detection and conversion. The ICD also may need to be reprogrammed. Changes in a patient’s antiarrhythmic drug or any other medication that affects the patient’s normal cardiac rate or conduction can affect the rate of tachyarrhythmias and/or efficacy of therapy. Direct any questions regarding the individualization of patient therapy to Sorin’s representative. 18 SORIN – INTENSIA VR 124 – U153A 7. PATIENT SELECTION AND TREATMENT 7.2. SPECIFIC PATIENT POPULATIONS Pregnancy: If there is a need to image the device, care should be taken to minimize radiation exposure to the foetus and the mother. Nursing Mothers: Although appropriate biocompatibility testing has been conducted for this implant device, there has been no quantitative assessment of the presence of leachables in breast milk. Pediatric Patients: This device has not been studied in patients younger than 18 years of age. Geriatric Patients: Most of the patients receiving this device in clinical studies were over the age of 60 years. Handicapped and Disabled Patients: Special care is needed in using this device for patients using an electrical wheel chair or other electrical (external or implanted) devices. SORIN – INTENSIA VR 124 – U153A 19 8. PATIENT COUNSELLING INFORMATION 8. PATIENT COUNSELLING INFORMATION The physician should consider the following points in counselling the patient about this device: ─ Persons administering CPR may experience tingling on the patient’s body surface when the patient’s ICD system delivers a shock. ─ Advise patients to carry Sorin ID cards and/or ID bracelets documenting their ICD system. 20 SORIN – INTENSIA VR 124 – U153A 9. CONFORMANCE TO STANDARDS 9. CONFORMANCE TO STANDARDS This device was developed in conformance with all or parts of the following standards: ─ EN 45502-1: 1998 – Active implantable medical devices. General requirements for safety, marking and information to be provided by the manufacturer. ─ EN 45502-2-1: 2003 – Active implantable medical devices. Part 2-1: Particular requirements for active implantable medical devices intended to treat bradyarrhythmia (cardiac pacemakers). ─ EN 45502-2-2: 2008 – Active implantable medical devices. Part 2-2: Particular requirements for active implantable medical devices intended to treat tachyarrhythmia (includes implantable defibrillators). ─ ISO 5841-3: 2013 Low profile connectors (IS1) for implantable pacemakers. ─ ISO27186:2010 (DF-4): Active implantable medical devices - Four-pole connector system for implantable cardiac rhythm management devices — Dimensional and test requirements. ─ ANSI/AAMI PC69: 2007 Active implantable Medical Devices - Electromagnetic compatibility - EMC test protocols for implantable cardiac pacemakers and implantable Cardioverter Defibrillators. ─ IEC 60601-1-2 (2007): Electromagnetic compatibility - Medical electrical equipment. General requirements for basic safety and essential performance - Collateral standard. ─ EN 50371 (2002): Generic standard to demonstrate the compliance of low power electronic and electrical apparatus with the basic restrictions related to human exposure to electromagnetic fields (10 MHz - 300 GHz). ─ EN 301 489-1 (v1.8.1) & EN 301 489-27 (v1.1.1): Electromagnetic compatibility and Radio spectrum Matters (ERM); Electromagnetic Compatibility (EMC) standard for radio equipment and services - Part 1: Technical Requirements and Part 27: Specific conditions for Ultra Low Power Active Medical Implants (ULP-AMI) and related peripheral devices (ULP-AMI-P). ─ EN 301 839-1 (v1.3.1) & EN 301 839-2 (v1.2.1): Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Ultra Low Power Active Medical Implants (ULP-AMI) and Peripherals (ULP-AMI-P) operating in the frequency range 402 MHz to 405 MHz; Part 1: Technical characteristics and test methods and Part 2: Harmonized EN covering essential requirements of Article 3.2 of the R&TTE Directive. ─ EN 62311 (2008): Assessment of electronic and electrical equipment related to human exposure restrictions for electromagnetic fields (0Hz to 300 GHz). ─ EN 62209-2 (2010): Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices – Human models, instrumentation and procedures – Part 2: Procedure to determine the specific absorption rate (SAR) for wireless communication devices used in close proximity to the human body (frequency range of 30MHz to 6 GHz). This information should not be used as a basis of comparisons among devices since different parts of the standards mentioned may have been used. SORIN – INTENSIA VR 124 – U153A 21 9. CONFORMANCE TO STANDARDS Sorin declares that this device is in conformity with the essential requirements of Directive 1999/5/EC on Radio and Telecommunications Terminal Equipment, with the mutual recognition of their conformity (R&TTE). Federal Communication Commission Interference Statement 47 CFR Section 15.19 and 15.105(b) The FCC product ID is YSGVR124. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. FCC Interference Statement 47 CFR Section 15.21 - No Unauthorized Modifications CAUTION: This equipment may not be modified, altered, or changed in any way without signed written permission from SORIN. Unauthorized modification may void the equipment authorization from the FCC and will void the SORIN warranty. Identification of the equipment according Section 95.1217(a) This transmitter is authorized by rule under the Medical Device Radiocommunication Service (in part 95 of the FCC Rules) and must not cause harmful interference to stations operating in the 400.150-406.00 MHz band in the Meteorological Aids (i.e., transmitters and receivers used to communicate weather data), the Meteorological Satellite, or the Earth Exploration Satellite Services and must accept interference that may be caused by such stations, including interference that may cause undesired operation. This transmitter shall be used only in accordance with the FCC Rules governing the Medical Device Radiocommunication Service. Analog and digital voice communications are prohibited. Although this transmitter has been approved by the Federal Communications Commission, there is no guarantee that it will not receive interference or that any particular transmission from this transmitter will be free from interference. IC Requirements for Canada The IC product ID is 10270A-VR124. This class B digital apparatus meets all requirements of the Canadian Interference- causing equipment regulations. This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. 22 SORIN – INTENSIA VR 124 – U153A 9. CONFORMANCE TO STANDARDS This device may not interfere with stations operating in the 400.150–406.000 MHz band in the Meteorological Aids, Meteorological Satellite, and Earth Exploration Satellite Services and must accept any interference received, including interference that may cause undesired operation. Cet appareil numérique de la classe B respecte toutes les exigences du règlement sur le matériel brouilleur du Canada. Le présent appareil est conforme aux CNR d’Industrie Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes: (1) il ne doit pas produire de brouillage, et (2) l’utilisateur du dispositif doit être prêt a accepter tout brouillage radioélectrique reçu, même si ce brouillage est susceptible de compromettre le fonctionnement du dispositif. Conformément à la réglementation d’Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d’un type et d’un gain maximal (ou inférieur) approuvé pour l’émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l’ intention d’autres utilisateurs, il faut choisir le type d’antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement d’une communication satisfaisante. Le présent dispositif ne doit pas causer de brouillage aux stations du service des auxiliaires de la météorologie, des satellites météorologiques, du service d’exploration de la terre par satellite, exploitées dans la bande 400,150-406,000 MHz, et il doit accepter tout brouillage reçu, y compris le brouillage pouvant entraîner un mauvais fonctionnement du dispositif. SORIN – INTENSIA VR 124 – U153A 23 10. PHYSICIAN GUIDELINES 10. PHYSICIAN GUIDELINES 10.1. PHYSICIAN TRAINING Physicians should be familiar with sterile pulse generator implant procedure and familiar with follow-up evaluation and management of patients with an implantable defibrillator (or referral to such a physician). 10.2. DIRECTIONS FOR USE ICD operating characteristics should be verified at the time of implantation and recorded in the patient file. Complete the Patient Registration Form and return it to Sorin, as it provides necessary information for warranty purposes and patient tracking. Additional programming instructions can be found by accessing Online Help (click the “?” on the screen) on the Sorin dedicated programmer. Paper copies of Online Help can be obtained by contacting your Sorin representative. 10.3. MAINTAINING DEVICE QUALITY This device is FOR SINGLE USE ONLY. Do not resterilize and reimplant explanted ICDs. Do not implant the device when: ─ It has been dropped on a hard surface because this could have damaged pulse generator components. ─ Its sterility indicator within the inner package is not green, because it might not have been sterilized. ─ Its storage package has been pierced or altered, because this could have rendered it non-sterile. ─ It has been stored or transported outside the environmental temperature limits: 32 °F (0 °C) to 122 °F (50 °C) as an electrical reset condition may occur. ─ "Use Before" date has expired, because this can adversely affect pulse generator longevity or sterility. 24 SORIN – INTENSIA VR 124 – U153A 11. PATIENT INFORMATION 11. PATIENT INFORMATION Information for the patient is available in the patient booklet, contained in the outer storage package. Additional copies can be obtained by contacting your Sorin representative or on the Sorin's web site: http://www.sorin.com. This information should be given to each patient with their first ICD and offered to the patient on each return visit or as deemed appropriate. SORIN – INTENSIA VR 124 – U153A 25 12. HOW SUPPLIED 12. HOW SUPPLIED 12.1. STERILITY The INTENSIA defibrillators are supplied one per package in a sterile package. 12.2. WARRANTY AND REPLACEMENT POLICY Sorin warrants its defibrillators. Refer to the section "Warranty" for additional information. Please see the following labelling sections for information concerning the performance of this device: Indications, Contraindications, Warnings and Precautions, and Adverse Events. 26 SORIN – INTENSIA VR 124 – U153A 13. DEVICE DESCRIPTION 13. DEVICE DESCRIPTION The INTENSIA VR system includes the model 124 ICD device and programming system. The programming system includes the Sorin dedicated programmer with the SMARTVIEW programming software connected to a CPR3 programming head. The programming system is configured and furnished by Sorin. The INTENSIA VR 124 can serve as a defibrillation electrode (active housing) with a total surface area of 76 cm². The INTENSIA VR 124 is designed to recognize and treat slow or fast VT and VF by continuously monitoring ventricular activity to identify persistent ventricular arrhythmias and to deliver appropriate therapies. INTENSIA VR 124 features DISCRIMINATION algorithm, which is specifically designed to differentiate ventricular tachycardias from fast rhythms of supraventricular origin. DISCRIMINATION continuously monitors R-R interval stability, searches for long cycles and evaluates sudden onset. In addition to the advanced detection scheme, INTENSIA VR 124 offers programmable single-chamber pacing therapy with or without rate-responsive capabilities using an acceleration sensor. INTENSIA VR 124 offers tiered therapy. Therapies can be programmed independently in each zone: ─ in the Slow VT and VT zones: two ATP programs, up to two shocks with programmable energy and up to four shocks with maximum energy can be programmed; ─ in the VF zone: one ATP program, up to two shocks with programmable energy and up to four shocks with maximum energy can be programmed. When the rhythm changes from one zone to another, the device delivers the therapy programmed in this zone, starting with the same or more aggressive program for the area. The ATP program in the VF zone will only be applied if the VT coupling interval is longer than the programmed fast VT cycle length. The INTENSIA VR 124 offers biphasic shocks with a maximum stored energy of 42 J. The shock configuration (electrodes used to apply the shock) can be chosen by programming one of the following combinations: can and one coil, can and two coils, two coils only. Other features are as follows: ─ Automatic ventricular sensitivity control ─ Non-committed shocks ─ Electrophysiological studies (EPS) with real-time markers or electrograms: ─ Programmer-controlled VT induction sequences, ─ Programmer-controlled VF inductions (30 Hz rapid pacing or shock on T), ─ Programmable electrogram vectors ( EGM V, RVcoil-CAN, SVC-CAN, RVcoil-SVC), ─ Real-time annotations displayed with the markers and indicating the majority rhythm, ─ Manual ATP sequences, ─ Manual shocks. ─ ─ Rescue shock Follow-up tests: ─ Pacing lead impedance, ─ Coil impedance, SORIN – INTENSIA VR 124 – U153A 27 13. DEVICE DESCRIPTION ─ Capacitor charge time, ─ Pacing threshold tests. ─ Data storage: ─ Therapy History Report, ─ Statistics (pace/sense, therapy, shocks, and battery voltage), ─ Up to 14 complete Holter records with event logs, marker channel notation, and electrogram records. The connector head has one port: ventricular bipolar pace/sense and RV & SVC defibrillation coils. The defibrillation port is compatible with the DF-1 standard. Distal lead terminal connections are secured with set-screws accessed via self-sealing silicone plugs. All lead connections pass through the header into the device via feedthroughs. Programming System: The Sorin programmer is used in conjunction with specific programmer software to interrogate and program the implanted device at implant and during patient follow-up procedures. Remote Monitoring: INTENSIA VR 124 is also equipped with the RF wireless technology which enables to remotely monitor the patients who have the Sorin SMARTVIEW Monitor installed at home. 28 SORIN – INTENSIA VR 124 – U153A 14. IMPLANT PROCEDURE 14. IMPLANT PROCEDURE 14.1. NECESSARY EQUIPMENT Implantation of INTENSIA VR 124 requires the following equipment: ─ Sorin dedicated programmer, equipped with the SMARTVIEW software interface and with the programming head, ─ pacing system analyzer, as well as its sterile connecting cables, to evaluate the pacing and sensing thresholds, ─ a ventricular pacing and defibrillation lead, ─ physiological signal monitor capable of displaying simultaneously the surface ECG and arterial pressure, ─ an external defibrillator with sterile external paddles, ─ sterile cover for the telemetry head. NOTE: In case you’re implanting a DF-4 lead, please verify its compatibility with standard alligators pin; please refer to the lead user’s manual for more details. 14.2. PACKAGING 14.2.1 . Contents The INTENSIA VR 124 and its accessories are ethylene oxide sterilized and hermetically sealed in two-ply clear packaging meeting international requirements. The sterile packaging contains a defibrillator and one screwdriver. The non-sterile items contained in the outer storage package are the implant manual, the ICD Registration Form and its envelope, the patient booklet, the ICD ID card and 12 identification labels. Once delivered, INTENSIA VR 124 is programmed to as-shipped values that are different from nominal values (see Chapter “Programmable Parameters” for details). 14.3. OPTIONAL EQUIPMENT The following equipment may be required during implantation of INTENSIA VR 124: ─ sterile water to clean traces of blood. Any parts cleaned with sterile water must be thoroughly dried. 14.4. ─ mineral oil to lubricate if necessary ─ a lead cap to isolate a lead which is not used BEFORE OPENING THE PACKAGE Before opening the package, check the "Use Before" date printed on the labels on the box and on the sterile package. Defibrillators that have not been implanted before that date should be returned to Sorin. SORIN – INTENSIA VR 124 – U153A 29 14. IMPLANT PROCEDURE Interrogate the device: ─ if a warning is displayed, do not implant the device and contact your Sorin representative. ─ if magnet rate is lower than 91 min-1, and if the last reforming/charge occurred more than one week ago, do not implant the device. Otherwise wait for one more week before checking the magnet rate again. NOTE : The magnet rate and battery voltage can decrease before the expiration date is reached. However, the magnet rate should be equal to or higher than 91 min-1 at the time of implant. Devices MUST NOT be interrogated and programmed within the vicinity of other devices. Also check the integrity of the sterile package. The sterility of the contents is no longer guaranteed if the package has been pierced or altered. If the defibrillator is no longer sterile, it should be returned in its packaging to Sorin. Any re-sterilization of the unit is at the discretion of Sorin. 14.5. PRIOR TO IMPLANTATION Use the programmer to verify the defibrillator can be interrogated before implantation. Verify all shock therapies are disabled in order to avoid accidental discharge during implantation. It is not advisable to program the Smoothing function before implantation, since the defibrillator may detect noise and pace at a rate higher than the programmed basic rate. CAUTION: Do not shake or tap sharply on the ICD package with the ICD inside, because the ICD's sensing circuits can interpret this as R-waves and record these as an arrhythmia episode. If unusual shaking or tapping of the package results in a stored arrhythmia episode, erase the recording before using the ICD. 14.6. DEVICE PLACEMENT The pocket should be prepared in the left pectoral position, either subcutaneously or submuscularly. Subcutaneous device implantation is recommended for optimal RF communication efficacy. Implantation in an abdominal position is not advisable. In its final position, the defibrillator should be no more than 4 cm below the skin surface. 14.7. CHOOSING THE TYPE OF LEAD The defibrillator should be connected to: ─ one quadripolar/tripolar ventricular defibrillation lead with sensing/pacing bipolar electrodes, and one or two defibrillation electrodes. The choice of leads and their configuration is left to the implanting physician’s judgment. NOTE: Please note that DF-1 standard compliant lead is not compatible with DF-4 connector. In the opposite, DF-4 standard compliant lead is not compatible with DF-1 connector. In case of defibrillator replacement and use of a DF-1 lead or any other lead type that require an adaptor for this device, please contact your Sorin representative for any information on lead / connector compatibility question. 30 SORIN – INTENSIA VR 124 – U153A 14. IMPLANT PROCEDURE Connectors: The quadripolar connector is compatible with the DF-4 standard (refer to the “Lead evaluation and lead connection” sub-section in the “Warnings and precautions” section). 14.8. SHOCK CONFIGURATION (+ -> -) The shock configuration is the energy pathway between the defibrillation electrodes. If an atrial coil is present, the shock configuration can be programmed for bi-directional shocks. Programming: When active case and SVC are both programmed to Yes, the shock configuration can be programmed to: ─ RV to Case (or Case to RV), ─ or RV to SVC (or SVC to RV), ─ or RV to Case+SVC (or Case+SVC to RV). RV to Case+SVC RV to Case RV to SVC The polarity of shock is determined by the parameter itself. 14.9. MEASUREMENT OF THRESHOLDS AT IMPLANT Pacing and sensing thresholds should be measured at implant. Pacing threshold: Acute thresholds should be lower than 1 V (or 2 mA) for a 0.35 ms pulse width. Sensing threshold: For proper ventricular sensing, the amplitude of the R-wave should be greater than 5 mV. Pacing impedance measurement: Ventricular pacing impedance should range from 200 to 3000 ohms (refer to the lead characteristics, especially if high impedance lead is used). 14.10. LEAD CONNECTION Implant the ventricular lead. The lead must be connected to the corresponding connector port. The position of each connector is indicated on the casing. CAUTION: Tighten only the distal insert. SORIN – INTENSIA VR 124 – U153A 31 14. IMPLANT PROCEDURE To connect the lead, proceed as follows: 1. Clean the lead terminal pins thoroughly, if necessary (device replacement). 2. Lubricate the lead terminal pins with sterile water, if necessary. 3. Do not insert a lead connector pin into the connector block without first visually verifying that the lead port is not filled with any obstacle. 4. Insert the screwdriver into the pre-inserted screw socket of the appropriate port (in order to allow excess air to bleed out and to make the insertion of the lead pin easier). 5. Insert the lead pin all the way into the port (check that the pin protrudes beyond the distal insert). 6. Tighten, check the tightness and ensure the lead pin still protrudes beyond the distal insert, and did not move. CAUTION: 1. Do not tighten the pre-inserted screws when there is no lead (this could damage the connector). 2. Do not loosen the screws before inserting the connector (subsequent risk of being unable to reinsert the screw). 3. When mineral oil or sterile water is used to make lead insertion easier, the screwdriver should remain inserted into the pre-inserted screw socket when checking the tightness. As a matter of fact, when the lead port is filled with a liquid, the physics piston effect can give the feeling the lead is properly tightened. 4. One single set screw is located on the side of the connection header. 5. Use only the screwdriver provided with the defibrillator. Maintain the screwdriver's shaft perpendicular to the plane of the defibrillator (see figure below). 6. Removing the screwdriver: to avoid all risk of loosening screws during removal, hold the screwdriver by its metal part and not by the handle. WARNING: Ensure that the screwdriver's tip is fully inserted in the setscrew; otherwise the screwdriver can damage the setscrew and prevent connection with or disconnection from the lead. To ensure full insertion, push the screwdriver's hex tip smoothly into the setscrew until it reaches the bottom of the hex chamber in the screw, which could be felt as a solid metallic contact. Do not implant the defibrillator if there is no feeling of solid metallic contact. Do not implant the defibrillator if the wrench does not click when attempting to tighten the setscrew on the lead pin. 32 SORIN – INTENSIA VR 124 – U153A 14. IMPLANT PROCEDURE NOTE: To optimize cardioversion/defibrillation shocks, electrodes must be positioned so that the electric field between anode(s) and cathode covers the largest myocardial mass. In normal conditions, the anode and cathode are adequately separated. In case of a shortcircuit, the shock may be aborted to prevent damaging the defibrillator. In the case of an external defibrillation shock delivered to the patient, always check the programming and functioning of the device, in particular its capacity to deliver shocks. 14.11. DEVICE IMPLANTATION INTENSIA VR 124 should be implanted with the engraved side facing outwards for optimal communication with the programming head and radiographic identification. Carefully wind excess lead and place in a separate pocket to the side of the defibrillator. It is recommended to not place any excess wire between the can and the heart. Suture the casing connector to the muscle using the hole provided for this purpose, in order to avoid potential migration of the device into the pectoral muscle. 14.12. TESTS AND PROGRAMMING During the implant testing procedure, it is recommended that a security margin of at least 10 J be demonstrated between the effective shock energy and maximum programmable energy. Enable shock therapies, then program the defibrillator. Verify that the defibrillation lead impedance for each shock delivered ranges from 30 to 150 ohms. Check the lead connection if the values are outside these boundaries. Save the programming data on the programmer’s hard disk and on an external storage device (if desired). SORIN – INTENSIA VR 124 – U153A 33 15. SPECIAL MODES 15. SPECIAL MODES 15.1. SAFETY MODE (NOMINAL VALUES) Nominal values may be rapidly restored by pressing the following button on the programming head or programmer keyboard: or via the Emergency button on the SMARTVIEW screen. In safety mode, the defibrillator operates with the parameters underlined in the table of programmable parameters. 15.2. MAGNET MODE When the magnet is applied: ─ antiarrhythmia functions are inhibited (detection of rhythm disturbances, charging, and therapy), ─ pacing amplitude is set to 6 V, ─ pulse width is set to maximum, ─ pacing rate is set to the magnet rate, ─ the following functions are disabled: Smoothing, Rate Response. When the magnet is removed: ─ the sensor rate is forced to the basic rate, ─ arrhythmia detection algorithms and sequential therapies are reinitialized, ─ therapies start with the least aggressive program for each area. The other parameters remain at their programmed value. The magnet rate values are as follows: 15.3. Magnet rate (bpm) 96 94 91 89 87 85 Magnet period (ms) 625 641 656 672 688 703 Magnet rate (bpm) 83 82 80 78 77 Magnet period (ms) 719 734 750 766 781 RESPONSE IN THE PRESENCE OF INTERFERENCE If the defibrillator senses electrical noise at a frequency above 16 Hz, it switches to an asynchronous mode at the basic rate. The programmed mode is restored as soon as the noise is no longer detected. Ventricular pacing is also inhibited by ventricular noise. It can be restored by setting the parameter V pacing on noise to Yes. 34 SORIN – INTENSIA VR 124 – U153A 15. SPECIAL MODES 15.4. DETECTION CHARACTERISTICS IN THE PRESENCE OF ELECTROMAGNETIC FIELDS Per Clause 27.4 of Standard EN 45502-2-2, detection in the presence of electromagnetic fields is characterized as follows: 15.5. ─ Differential mode: ─ Common mode rejection ratio: 16.6 Hz 50 Hz 60 Hz Atrial channel ≥ 75 dB 64 dB 62 dB Ventricular channel ≥ 69 dB ≥ 57 dB ≥ 56 dB PROTECTION AGAINST SHORT-CIRCUITS The defibrillator can undergo a short-circuit if the anode and cathode are not adequately separated. In this case, the shock is aborted to prevent damaging the defibrillator and a warning will indicate that a short circuit (shock impedance < 20 ohms) was detected during the last shock. SORIN – INTENSIA VR 124 – U153A 35 16. MAIN FUNCTIONS 16. MAIN FUNCTIONS 16.1. AUTOMATIC LEAD MEASUREMENTS Automatic pacing lead impedance measurement: A lead impedance measurement is automatically performed on the lead every 6 hours. The daily mean impedance is stored. Automatic coil impedance measurement: A coil impedance measurement is automatically performed on RV and SVC coils once a week. The result is stored in the device memory. 16.2. VENTRICULAR TACHYARRHYTHMIA MANAGEMENT Searching for a long cycle (Stability+): Additional arrhythmia classification criterion to improve identification of atrial fibrillation and avoid inappropriate shocks. Fast VT treatment: Applies detection criteria on fast ventricular tachycardia that are different from those of the VT zone, as well as different therapies. The fast VT zone is included in the VF zone: its lower limit is determined by the programmed value for the VF zone and its upper limit by the programmed value for the fast VT zone. Polarity alternation on Max shock: Reverses the programmed polarity of every second shock set at maximum energy. The number, type, and energy of shocks is independently programmable by detection zone. 16.3. PACING BTO (Brady Tachy Overlap): Allows pacing in the slow VT zone, without affecting arrhythmia detection specificity. Post-shock mode: After any automatic shock therapy, the post-shock mode makes it possible to apply different pacing parameters. 16.4. SENSING Automatic Refractory Periods: Optimize sensing and make the implant progamming easier. These periods are composed of a minimal Refractory Period and a triggerable Refractory Period. The duration of the refractory periods lengthens automatically as needed. 36 SORIN – INTENSIA VR 124 – U153A 16. MAIN FUNCTIONS Protection against noise: Allows the distinction between ventricular noise and ventricular fibrillation. If the device senses ventricular noise, the ventricular sensitivity is decreased until noise is no longer detected. Ventricular pacing can be inhibited to avoid a potential paced T-wave. Automatic sensitivity control: Optimizes arrhythmia detection and avoids late detection of T-waves and over-detection of wide QRS waves. The device automatically adjusts the sensitivities based on the ventricular sensing amplitude. In case of arrhythmia suspicion or after a paced event, the programmed ventricular sensitivity will be applied. The minimum ventricular sensitivity threshold is 0.4 mV (minimum programmable value). 16.5. FOLLOW-UP FUNCTION Storage of memory data: AIDA+ (Automatic Interpretation for Diagnosis Assistance) software provides access up to 6 months of patient follow-up with day by day data collection, or up to 24 hours with hourly data collection. Episodes of ventricular tachyarrhythmia are recorded with the programmable EGM channels: either by selecting up to two traces, or by selecting "Double V" which enables a one-channel recording that is twice as long. Alerts / Warnings: The device routinely performs security self-checks and technical measurements to ensure system integrity. When system integrity is found to be at risk outside a follow-up, alerts are stored in the device memory. When system integrity is found to be at risk during a follow-up, the information is managed as a warning (pop-up message) to notify immediately the user. For example, the following types of event can trigger a warning or an alert: technical problem during a shock, pacing lead impedance or coil impedance measurements out-ofrange, battery depletion, … 16.6. REMOTE MONITORING FUNCTION Remote monitoring enables the automatic remote transmission of implant data to the physician thanks to the wireless Radio Frequency (RF) communication ability of the implant in order to provide a comprehensive report to the physician about device functioning and patient cardiac status without having the patient physically in the clinic. The data is transmitted from the implant and the SMARTVIEW monitor, a small transmitter placed in the patient home. Implant data are first transmitted to the SMARTVIEW monitor via RF. Data are then rooted through the phone line to an internet website. This website is responsible for transforming the implant data into a comprehensive report that can be consulted by the physician. 16.6.1 . SMARTVIEW Monitor The SMARTVIEW monitor is a small device equipped with an RF transmission module to communicate with the implant and a modem to export data through the internet. The SMARTVIEW monitor is delivered to the patient who has to install it at home. Preferably the SMARTVIEW monitor will be placed on the nightstand of the patient, as close as possible to the side of the bed the patient usually sleeps. The SMARTVIEW monitor shall be connected to the phone line of the patient and the power plug. Regular transmissions are SORIN – INTENSIA VR 124 – U153A 37 16. MAIN FUNCTIONS done during the night when the patient is asleep next to the SMARTVIEW monitor without any intervention from the patient. 16.6.2 . Transmission trigger There are 3 different triggers for a remote transmission: ─ the remote follow-up transmission is scheduled by the physician to occur regularly (according to the programming). ─ the alert transmission will take place when the implant has recorded an abnormal event. The list of abnormal event is available in a following paragraph. Alert conditions are checked daily. ─ the on-demand follow-up transmission is triggered by the patient himself through the use of a specific button on the remote-monitor. 16.6.3 . Data transmitted The data transmitted are identical to the data available during a standard interrogation with the dedicated programmer. All counters, histograms, IEGMs and diagnosis available in the device are transmitted containing (not exhaustive list): ─ programmed parameters ─ Information on patient and system implanted ─ battery status ─ lead status (brady leads and defibrillation coils) ─ pacing counters and mean heart rate (brady) ─ ventricular arrhythmia counters and episodes ─ ventricular therapy counters Data are presented in the form of 2 reports to the physician: the first one contains a summary of major counters, histograms, warnings and diagnosis. The second one presents the 3 most important IEGM episodes automatically selected based on the degree of severity for the patient. 16.6.4 . User website On the website, the physician is able to: 16.6.5 . ─ consult and schedule the remote follow-ups of their patient ─ configure additional ways of being notified of alerts (for instance by SMS, fax or e-mail ─ consult, print and export patient reports Alert system The following set of alert trigger can be independently programmed ON/OFF by the physician using the dedicated programmer and can trigger an alert transmission: 38 ─ Low or high impedance ─ Abnormal coil impedance (shock lead) ─ Low or High shock impedance ─ Inefficient high energy shock ─ All shocks programmed OFF ─ Shock treated VT/VF SORIN – INTENSIA VR 124 – U153A 16. MAIN FUNCTIONS ─ Suspicion of noise on the V lead WARNING: The use of remote monitoring does not replace regular follow-up. Therefore, when using remote monitoring, the time period between follow-ups visits may not be extended. SORIN – INTENSIA VR 124 – U153A 39 17. PATIENT FOLLOW-UP 17. PATIENT FOLLOW-UP 17.1. FOLLOW-UP RECOMMENDATIONS Before the patient is discharged and at each subsequent follow-up visit, it is advisable to: ─ check the occurrence of system warnings ─ check the battery status, NOTE: If the last reforming, charge or shock occurred during the week preceding the interrogation, the last battery value may be still impacted by the event. One week post event, the battery will recover its steady state value. ─ check the integrity of the pacing and defibrillation leads, ─ check for proper sensing (sensitivity) and pacing ; set the pacing amplitude to twice the pacing threshold, ─ interrogate the implant memories (AIDA+), ─ check the efficacy of the therapies delivered, ─ keep a printout of programmed parameters, test results, and memory data, ─ reset the memory data and statistics. These operations should be performed by medical personnel in an appropriate care unit, with resuscitation equipment present. It is recommended that a routine follow-up examination be done one month after discharge, and then every three months until the device nears the replacement date. After a device reset, the magnet rate is equal to 87 bpm; it will be updated within the next 24 hours. Refer to the online help for a description of displayed warning, and the necessity to contact Sorin for an evaluation. Implant software upgrade: In case a new implant software is downloaded in the device memory through the programmer, a warning message could be displayed by the programmer to inform the user and give the proper instructions to follow. 17.2. HOLTER FUNCTION The Holter records up to 14 tachyarrhythmia episodes as well as the therapy history. Stored Episodes INTENSIA VR 124 stores up to 14 episodes (VF, VT, Slow VT, SVT/ST, non-sustained). For each episode four levels of details are presented: ─ Tachogram ─ Event log for the entire episode: ─ "Discrimination" analysis for each majority, ─ Delivered therapies, 40 SORIN – INTENSIA VR 124 – U153A 17. PATIENT FOLLOW-UP ─ Markers: Ventricular markers, sensed, paced and in relative refractory periods, ─ EGM: onset and detection of the arrhythmia, on two therapies, and the return to slow rhythm by recording electrogram. Therapy history For each arrhythmia detection, each therapy delivered (either automatically or during an electrophysiological study) and at the end of each arrhythmia, INTENSIA VR 124 records the type of majority rhythm, the number of ATP sequences delivered, the energy and the number of shocks delivered. 17.3. RECOMMENDED REPLACEMENT TIME (RRT) Recommended Replacement Time (RRT)(1) is controlled by: ─ magnet rate equal to 80 ± 1 bpm or ─ battery voltage equal to 2.66 V ± 0.01 V CAUTION: The defibrillator should be replaced as soon as the Recommended Replacement Time (RRT) point is reached. Between the RTT and the EOS (End of Service)(2), INTENSIA VR 124 can still function for: ─ 9.7 months (100% pacing in VVI mode, 500 ohms, with as-shipped settings), and deliver 7 shocks at 34 J or ─ 6.4 months (0% pacing, sensors OFF, one 42 J shock every 2 weeks). Once the Recommended Replacement Time (RRT) point has been reached, the device operates normally, except that the charge time increases. Under normal conditions (and without programmer use) the charge times are as follows: Shock energy Charge time (sec) BOS(3) 42 J 10 (± 2) RTT 42 J 13 (± 3) (1) Recommended Replacement Time (RRT) corresponds to Elective Replacement Indicators (ERI) previously used. (2) End of Service (EOS) corresponds to End of Life (EOL) previously used. (3) Beginning of Service (BOS) corresponds to Beginning of Life (BOL) previously used. 17.4. EXPLANTATION The defibrillator should be explanted in the following cases: ─ The Recommended Replacement Time (RRT) point is reached ─ Confirmed malfunction ─ Burial of the patient (for environmental reasons, the local regulation may require the explantation of the devices containing a battery supply) ─ Cremation of the patient (the defibrillator may explode if placed in an incinerator) The explanted defibrillator should not be reused in another patient. All explanted defibrillators should be returned to Sorin, carefully cleaned of all traces of contamination. This may be done by immersing them in an aqueous sodium hypochlorite containing at least 1% chlorine, followed by rinsing copiously with water. SORIN – INTENSIA VR 124 – U153A 41 17. PATIENT FOLLOW-UP The defibrillator should be protected against mechanical impact and the temperature variations that may occur during shipping. Before explantation, it is advisable to: 17.5. ─ print out all programmed parameters, statistics and Holter function report, ─ save Patient data on floppy disk or hard disk, ─ disable shock therapies (VT and VF) to avoid any risk of untimely shock. DEFIBRILLATOR IDENTIFICATION The defibrillator can be interrogated and programmed via telemetry, using the programming head interfaced with the Sorin dedicated programmer. Position the programming head over the telemetry antenna located in the upper part of the device, in order to communicate effectively via telemetry (see diagram below). The device can be non-invasively identified as follows: 1. Take an x-ray to identify the name of the manufacturer and model, printed on the device (X-ray ID is SDE : S = SORIN ; D = Defibrillator ; E = INTENSIA range). 2. Interrogate the device using the Sorin dedicated programmer. The model and serial number of the device are automatically displayed. The first figure in the serial number corresponds to the last figure in the year of manufacture. 42 SORIN – INTENSIA VR 124 – U153A 18. PHYSICAL CHARACTERISTICS 18. PHYSICAL CHARACTERISTICS 18.1. Dimensions 61.9 x 73.4 x 11 mm Weight 92 g Volume 38.6 cm3 Active surface area of casing 76 cm2 Connector DF-4 MATERIALS USED Active surface area of casing 99% pure titanium Connectors Polyurethane* and silicone elastomer* *Medical-grade materials that have undergone "in vitro" and "in vivo" qualifications. SORIN – INTENSIA VR 124 – U153A 43 19. ELECTRICAL CHARACTERISTICS 19. ELECTRICAL CHARACTERISTICS Ventricular input impedance 80 kilohms ± 30 % D.C. capacitance 148 µF ± 8 % Capacitor formation No formation required Rate limit 192 bpm ± 10 bpm Pacing waveform Defibrillation waveform 19.1. TABLE OF DELIVERED SHOCK ENERGY AND VOLTAGE The relationship between stored energies, maximum voltages and delivered energies (at 37 °C, 50 ohm load) for the minimum, low, mean and maximum programmed energy values is as follows: Stored energy (J) 0.5 10 20 34 42 V1 (Volt) 75 341 483 631 702 V2 (Volt) 37 173 245 318 353 Delivered E: Phase 1 (J) 0.31 7.0 14.0 23.9 29.6 Delivered E: Phase 2 (J) 0.08 1.8 3.6 6.1 7.5 Delivered E: Total (J) 0.4 8.8 17.6 30.0 37.1 Tolerances are 12% for voltage (25% at 0.5 J) and 30% for energy. 19.2. 44 BATTERY Manufacturer Greatbatch Type Quasar High Rate (QHR) Model GB 2593 Number of batteries Total capacity 1964 mAh SORIN – INTENSIA VR 124 – U153A 19. ELECTRICAL CHARACTERISTICS 19.3. Usable capacity Between BOS and RRT: 1278 mAh. Between BOS and EOS: 1675 mAh. Voltage BOS: 3.25 V. RRT: 2.66 V. EOS: 2.5 V. LONGEVITY The longevities mentioned below are calculated by taking into account 6 months storage. 7.3 years Pacing in VVI mode, 100%, 500 ohm, 3.5 V, 0.35 ms, 60 bpm, one 42 J shock per quarter, sensor OFF 7.1 years Pacing in VVI mode, 100%, 500 ohm, 3.5 V, 0.35 ms, 60 bpm, one 42 J shock per quarter, sensor ON 9.1 years Pacing in VVI mode, 1%, 500 ohm, 3.5 V, 0.35 ms, 60 bpm, one 42 J shock per quarter, sensor OFF 8.5 years Pacing in VVI mode, 15%, 500 ohm, 4.5 V, 0.50 ms, 60 bpm, one 42 J shock per quarter, sensor OFF 9.3 years 0% pacing, one 42 J shock per quarter, sensor OFF The mean longevity as a function of shocks delivered at maximum energy, with and without pacing, is as follows: The mean longevity as a function of yearly remote follow-ups (1), with and without pacing, is as follows: (1) An excessive number of remote follow-ups can have a non-negligible impact on device longevity. SORIN – INTENSIA VR 124 – U153A 45 20. PROGRAMMABLE PARAMETERS 20. PROGRAMMABLE PARAMETERS measured at 37 °C under a 500 ohm load Legend: Value in bold: "as shipped" value Underlined value: nominal value 20.1. ANTIBRADYCARDIA PACING Basic parameters Values Mode VVI-VVIR Basic rate (bpm) (1) From 30 to 90 by steps of 5 ; 60 (± 4 %) Maximum rate (bpm) From 100 to 145 by steps of 5 ; 120 (± 6 %) Rate hysteresis (%) 0-5-10-20-35 (± 18 ms) (1) The corresponding periods are (in ms): 2000-1714-1500-1333-1200-1091-1000-923-857-800-750706-667 ms. Special features Values Smoothing OFF-Very slow-Slow-Medium-Fast Physical activity Very low-Low-Medium-High-Very high Pacing/Sensing Values Ventricular sensitivity (mV) (1) From 0.4 to 4 by steps of 0.2 ; 0.4 (± 50 %) Ventricular amplitude (V) (2) 1-1.5-2-2.5-3-3.5-4-4.5-5-6 (± 20 %) Ventricular pulse width (ms) 0.12-0.25-0.35-0.5-0.6-0.75-0.85-1 (± 10 %) (1) Values are measured using a positive and negative triangular signal of 2/13 ms. (2) The correlation between the programmed amplitudes, the stored amplitudes and the mid-pulse delivered amplitudes under a 500 ohm load are given in the following table: 46 Programmed ampl. (V) 1.5 2.5 3.5 Mid-pulse delivered ampl. (V) 0.97 1.39 1.79 2.35 2.84 3.25 Stored amplitude (V) 1.14 1.63 2.1 2.76 3.33 3.82 Programmed ampl. (V) 4.5 Mid-pulse delivered ampl. (V) 3.58 4.23 4.47 5.37 Stored amplitude (V) 4.2 4.96 5.25 6.3 SORIN – INTENSIA VR 124 – U153A 20. PROGRAMMABLE PARAMETERS 20.2. Post-shock mode Values Mode OFF-VVI Duration 10s-20s-30s-1min-2min-3min-4min-5min Basic rate (bpm) From 50 to 90 by steps of 5 ; 60 (± 4 %) V amplitude (V) 1-1.5-2-2.5-3-3.5-4-4.5-5-6 (± 20 %) V pulse width (ms) 0.12-0.25-0.35-0.5-0.6-0.75-0.85-1 (± 10 %) Sensitivity margins Values Ventricular post pacing margin (mV) From 0 to 2 by steps of 0.2 ; 0.8 Response to noise Values Automatic sensitivity on noise ON-OFF V pacing on noise ON-OFF VENTRICULAR TACHYARRHYTHMIA DETECTION Therapy zones Slow VT detection zone Values (1) Slow VT ON-Slow VT OFF VT detection zone VT ON-VT OFF Fast VT / VF detection zone Fast VT+VF ON-VF ON Slow VT rate (lower limit) (bpm) From 100 to 200 by steps of 5 ; 190 VT rate (lower limit) (bpm) 130-135-140-145-150-155-160-165-170-175-180-185-190195-200-210-220-230 VF rate (lower limit) (bpm) 150-155-160-165-170-175-180-185-190-195-200-210-220230-240 Fast VT rate (upper limit) (bpm) 155-160-165-170-175-180-185-190-195-200-210-220-230240-255 Slow VT persistence (cycles) 4-6-8-12-16-20-30-50-100-200 VT persistence (cycles) 4-6-8-12-16-20-30-50-100-200 VF persistence (cycles) From 4 to 20 by steps of 1 ; 6 (1) The Slow VT zone should be programmed ON only if the VT zone is programmed ON. SORIN – INTENSIA VR 124 – U153A 47 20. PROGRAMMABLE PARAMETERS 20.3. 48 Detection criteria Values Slow VT and VT detection criteria Rate Only-Stability-Stability+-Stability/Acc-Stability+/Acc Fast VT detection criteria Rate+Stability-Rate Only Majority: (X/Y), Y (cycles) 8-12-16 Majority: (X/Y), X (%) 65-70-75-80-90-95-100 Window of RR stability for Slow VT and VT (ms) 30-45-65-80-95-110-125 Window of RR stability for fast VT (ms) 30-45-65 Acceleration (%) 6-13-19-25-31-38-44-50 Long cycle persistence extension (cycles) From 0 to 16 by steps of 1 ; 10 Long cycle gap (ms) 15-30-45-65-80-95-110-125-140-155-170-190-205 VENTRICULAR TACHYARRHYTHMIA THERAPIES Common parameters Values Enable ATP therapy Yes-No Enable shock therapy Yes-No Polarity alternation (42J) Yes-No Atrial coil (SVC) present Yes-No Active case Yes-No Shock configuration (+ --> -) Case to RV-SVC to RV-Case + SVC to RV-RV to Case-RV to SVC-RV to Case + SVC SVC exclusion (shock < 15J) Yes-No SORIN – INTENSIA VR 124 – U153A 20. PROGRAMMABLE PARAMETERS 20.3.1 . Therapy parameters in slow VT zone ATP 1 program Values ATP program OFF-Burst-Burst+Scan-Ramp-Ramp+Scan Number of sequences 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles in first sequence 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles added per sequence 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Coupling interval (%) 50-55-60-65-70-75-80-85-90-95 Ramp decrement (per cycle) (ms) 0-4-8-12-16-20-30-40-50-60 Scan decrement (per sequence) (ms) 0-4-8-12-16-20-30-40-50-60 Time limit (min) 0.5-1-1.5-2-2.5-3-3.5-4 Minimum cycle length (ms) 95-110-125-140-155-170-190-205-220-235-250-265-280295-310 ATP 2 program Values ATP program OFF-Burst-Burst+Scan-Ramp-Ramp+Scan Number of sequences 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles in first sequence 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles added per sequence 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Coupling interval (%) 50-55-60-65-70-75-80-85-90-95 Ramp decrement (per cycle) (ms) 0-4-8-12-16-20-30-40-50-60 Scan decrement (per sequence) (ms) 0-4-8-12-16-20-30-40-50-60 Time limit (min) 0.5-1-1.5-2-2.5-3-3.5-4 Minimum cycle length (ms) 95-110-125-140-155-170-190-205-220-235-250-265-280295-310 Shock program Values Shock 1 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Shock 2 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Number of Max. Shock (42 J) SORIN – INTENSIA VR 124 – U153A OFF-1-2-3-4 49 20. PROGRAMMABLE PARAMETERS 20.3.2 . Therapy parameters in VT zone ATP 1 program Values ATP program OFF-Burst-Burst+Scan-Ramp-Ramp+Scan Number of sequences 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles in first sequence 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles added per sequence 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Coupling interval (%) 50-55-60-65-70-75-80-85-90-95 Ramp decrement (per cycle) (ms) 0-4-8-12-16-20-30-40-50-60 Scan decrement (per sequence) (ms) 0-4-8-12-16-20-30-40-50-60 Time limit (min) 0.5-1-1.5-2-2.5-3-3.5-4 Minimum cycle length (ms) 95-110-125-140-155-170-190-205-220-235-250-265-280295-310 ATP 2 program Values ATP program OFF-Burst-Burst+Scan-Ramp-Ramp+Scan Number of sequences 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles in first sequence 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles added per sequence 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Coupling interval (%) 50-55-60-65-70-75-80-85-90-95 Ramp decrement (per cycle) (ms) 0-4-8-12-16-20-30-40-50-60 Scan decrement (per sequence) (ms) 0-4-8-12-16-20-30-40-50-60 Time limit (min) 0.5-1-1.5-2-2.5-3-3.5-4 Minimum cycle length (ms) 95-110-125-140-155-170-190-205-220-235-250-265-280295-310 Shock program Values Shock 1 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Shock 2 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Number of Max. Shock (42 J) 50 OFF-1-2-3-4 SORIN – INTENSIA VR 124 – U153A 20. PROGRAMMABLE PARAMETERS 20.3.3 . Therapy parameters in fast VT / VF zone ATP 1 program Values ATP program OFF-Burst-Burst+Scan-Ramp-Ramp+Scan Number of sequences 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles in first sequence 1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Cycles added per sequence 0-1-2-3-4-5-6-7-8-9-10-11-12-13-14-15 Coupling interval (%) 50-55-60-65-70-75-80-85-90-95 Ramp decrement (per cycle) (ms) 0-4-8-12-16-20-30-40-50-60 Scan decrement (per sequence) (ms) 0-4-8-12-16-20-30-40-50-60 Time limit 10s-20s-30s-1min-1.5min-2min Minimum cycle length (ms) 95-110-125-140-155-170-190-205-220-235-250-265-280295-310 Shock program Values Shock 1 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Shock 2 (J) OFF-0.5-0.8-1-1.3-1.5-2-2.5-3-3.5-4-5-6-7-8-910-12-14-16-18-20-22-24-26-28-30-32-34-42 Number of Max. Shock (42 J) 20.4. 1-2-3-4 REMOTE ALERTS AND WARNINGS The device routinely performs security self-checks and technical measurements to ensure system integrity. When system integrity is found to be at risk outside a follow-up, alerts are stored in the device memory. When system integrity is found to be at risk during a follow-up, the information is managed as a warning (pop-up message) to notify immediately the user. For example, the following types of event can trigger a warning or an alert: technical problem during a shock, pacing lead impedance or coil impedance measurements out-ofrange, battery depletion, etc. The Remote tab presents an overview of all the alerts managed by the device. General parameters Values RF communication (1) ON-OFF Remote alerts (1) ON-OFF (1) RF and Remote alerts are turned on automatically if Shocks are programmed ON. When Alerts are programmed "On", the following System Alerts are automatically activated: ─ Battery depletion – RRT ─ Device reset ─ Excessive charge time (>25s) SORIN – INTENSIA VR 124 – U153A 51 20. PROGRAMMABLE PARAMETERS ─ System integrity Lead Alerts Values Abnormal lead impedance ON-OFF Abnormal lead low limit (Ohm) 200-250-300-350-400-450-500 Abnormal lead high limit (Ohm) 1500-1750-2000-2500-3000 Abnormal RV coil impedance ON-OFF Abnormal SVC coil impedance ON-OFF Abnormal Shock impedance (1) ON-OFF (1) Normal impedance range [20 Ohm-200 Ohm] 52 Clinical status Values V oversensing ON-OFF Therapy information Values Shock disabled ON-OFF Shocks delivered OFF-All shocks-Inefficient shock-Inefficient max shock SORIN – INTENSIA VR 124 – U153A 21. NON PROGRAMMABLE PARAMETERS 21. NON PROGRAMMABLE PARAMETERS Ventricular refractory periods Values Post ventricular sensing 95 ms (± 16 ms) Post ventricular pacing 220 ms (± 4 ms) Therapies Values Waveform (1) Constant tilt (50% - 50%) Stored energy for the Max. shock 42 J Pacing amplitude during ATP therapies 7 V (Actual value at 300 ms: 5.3 V ) (1) The device has 50% tilt in each phase thus delivers 94% of stored energy. Each phase is limited to 10 ms duration. SORIN – INTENSIA VR 124 – U153A 53 22. LIMITED WARRANTY 22. LIMITED WARRANTY The INTENSIA implantable cardioverter defibrillator is the result of highly advanced research and all components have been selected after exhaustive testing. Sorin Group Italia S.r.l. (identified as “Sorin” hereafter) guarantees the product INTENSIA against any damage caused by component failure or production defects during a period of four years after the implantation date, and Sorin commits itself to replace all INTENSIA devices according to the terms described in article 1 and described in article 2 of this section. Sorin makes no claim that the human body will not react unsuitably to the implantation of the INTENSIA device, or that failure will never occur. Sorin does not guarantee the suitability of INTENSIA in defined types of patients; selection of the device is a medical decision. Sorin shall not be held liable for any damage indirectly associated with the INTENSIA, whether as part of normal or abnormal operation, nor damage from its explantation or replacement. Sorin does not authorise anyone to modify these limited warranty conditions. 22.1. ARTICLE 1 : TERMS OF LIMITED WARRANTY 1. The INTENSIA implantable cardioverter defibrillator is only guaranteed for the first implantation. 2. The EURID/Eucomed implant form must be sent to Sorin within 30 days after implantation. 3. The INTENSIA cardioverter defibrillator must be implanted prior to the use-before date indicated on the packaging. 4. The limited guarantee only applies to suspect devices returned to the manufacturer, carefully packed and accompanied by an explantation report duly completed by the hospital or the doctor and considered defective after analysis by Sorin. The device must be returned within the 30 days following explantation to Sorin. Any device returned and replaced under the terms of this limited warranty will become the exclusive property of Sorin. Any rights under the terms of this limited warranty will be forfeited if the INTENSIA device has been opened by anyone other than Sorin. These rights will also be forfeited if the device has been damaged by carelessness or accident. This is the case especially if the device has been exposed to temperatures above 50°C, to electrical abuse or to mechanical shock, particularly as a result of being dropped. Consequently, any expert opinion offered by a third party after the device has been removed also nullifies the guarantee. 5. The limited warranty will be forfeited if it is proven that the device has been misused or inadequately implanted, against the physicians’manual recommendations of INTENSIA. 6. The limited warranty does not include leads and other accessories used for the implantation. 7. The replacement terms or conditions described in article 2 include all devices that shall be replaced within the limited warranty period because of battery depletion, without any 54 SORIN – INTENSIA VR 124 – U153A 22. LIMITED WARRANTY link to a component failure or a production hazard. The device battery longevity varies with the type and number of delivered therapies. 8. Legal requirements of jurisdictions where the INTENSIA device is distributed will supersede any warranty conditions indicated in this manual that conflict with such laws. 22.2. ARTICLE 2 : TERMS OF REPLACEMENT 1. In case of INTENSIA failure because of a component failure, a production defect, or a conception error, occurring within two-year period starting from the implantation date, Sorin is committed to: ─ replacing free of charge the explanted device by a Sorin device with equivalent features, ─ or issuing a replacement credit equal to the purchase price for the purchase of any other Sorin replacement device. 2. After a two-year period and up to 4 years after the implantation, Sorin, because of limited warranty terms, will issue a replacement credit to the buyer of an amount equivalent to half of the initial purchase price minus prorata temporis during this two-years period. 3. In any case the credit issued by the limited warranty terms cannot exceed the purchase price of a Sorin replacement device. SORIN – INTENSIA VR 124 – U153A 55 23. PATENTS 23. PATENTS The INTENSIA model described in this manual is covered by the following US patents: 5 167 224, 5 226 415, 5 271 394, 5 312 451, 5 325 856, 5 339 820, 5 350 406, 5 411 533, 5 462 060, 5 513 645, 5 545 181, 5 558 097, 5 564 430, 5 591 218, 5 626 619, 5 645 574, 5 674 265, 5 697 960, 5 702 424, 5 702 426, 5 713 928, 5 741 315, 5 776 164, 5 776 165, 5 818 703, 5 836 980, 5 868 793, 5 891 170, 5 891 184, 5 899 931, 5 931 856, 5 935 153, 5 954 660, 5 978 708, 6 181 968, 6 230 058, 6 236 111, 6 251 703, 6 256 206, 6 307 261, 6 337 996, 6 397 105, 6 408 209, 6 487 451, 6 487 452, 6 505 068, 6 532 238, 6 556 866, 6 604 002, 6 622 039, 6 625 491, 6 711 441, 6 738 665, 6 830 548, 6 889 080, 6 898 845, 6 912 421, 6 937 898, 6 975 905, 7 065 402, 7 072 716, 7 076 297, 7 113 826, 7 142 924, 7 164 946, 7 251 526, 7 366 566, 7 400 921, 7 400 922, 7 953 483. 56 SORIN – INTENSIA VR 124 – U153A 24. EXPLANATION OF SYMBOLS 24. EXPLANATION OF SYMBOLS The symbols on product labelling have the following meaning: Use by Date of manufacture Manufacturer Serial number Batch number For single use only. Sterilised using ethylene oxide Temperature limitation High voltage Consult instruction for use. This icon is used to call your attention to a particularly important point. This icon alerts you to a hazard that may result in equipment damage or personal injury. Carefully read the instructions provided with this icon. FCC ID : YSGVR124 IC : 10270A-VR124 Last revision date of this implant manual: 2013-09 SORIN – INTENSIA VR 124 – U153A 57 CAUTION: FEDERAL LAW RESTRICTS THIS DEVICE TO SALE BY OR ON THE ORDER OF A PHYSICIAN Manufactured in Italy by: Sorin Group Italia S.r.l. Via Crescentino s.n. 13040 Saluggia (VC) - Italy Tel: +39 0161 487095 Facsimile: +39 0161 487524 www.sorin.com Distributed by: Sorin CRM USA, Inc. 14401 West 65th Way Arvada, CO 80004 USA Tel: 877.663.7674 2013-09 U153A
Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.6 Linearized : Yes Create Date : 2013:09:12 14:04:16+02:00 Creator : Writer Modify Date : 2013:09:12 15:06:33+02:00 Has XFA : No Language : en-US XMP Toolkit : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26 Creator Tool : Writer Metadata Date : 2013:09:12 15:06:33+02:00 Producer : OpenOffice.org 3.3 Format : application/pdf Document ID : uuid:dc668c28-4968-4aa9-bec3-a985abda391d Instance ID : uuid:589b41b2-b1b7-40f3-8883-a6b8d0b93f2c Page Count : 60EXIF Metadata provided by EXIF.tools