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  Cardiac Airbag Technical Manual  

 

Measuring R-wave Amplitude 

1. Select 

Intracardiac Measurements

 

2.  Press and hold the 

Record Data

  (

See Figure

 12) 

button to measure the R-wave amplitude.  There is 
an audible tone when the ICD has detected a 
sensed R-wave. 

3.  In general, R-wave amplitudes should be greater 

than 5 mV. 

4. Press 

Print

 to obtain a printout of the measurement. 

 
 

 

Figure 12.  R-Wave Measurement 

Summary of Contents for Cardiac Airbag

Page 1: ...Draft Cardiac Airbag Cardiac Airbag T Family of Implantable Cardioverter Defibrillators and Software Cartridge for TMS 1000PLUS and EPR 1000PLUS Technical Manual...

Page 2: ...T Implantable Cardioverter Defibrillator Inside the housing top left hand side Year of manufacture X Ray identification EI CAUTION Federal U S A law restricts this device to sale by or on the order of...

Page 3: ...veillance EAS 12 1 4 10 Home Appliances 12 1 5 Adverse Events 13 1 5 1 Potential Adverse Events 13 1 5 2 Observed Adverse Events 14 1 6 Clinical Studies 17 1 6 1 Patients Studied 17 1 6 2 Methods 18 1...

Page 4: ...ost Shock Pacing 33 2 6 Special Features 33 2 6 1 Home Monitoring Cardiac Airbag T Only 33 2 6 2 Real time IEGM Transmission 37 2 6 3 Capacitor Reformation 37 2 6 4 Patient and Implant Data 38 2 6 5 S...

Page 5: ...6 5 9 Suggested Cardiac Airbag Implant Procedure 57 6 Follow up Procedures 68 6 1 General Considerations 68 6 2 Suggested Cardiac Airbag Follow Up Procedure 68 6 3 Longevity 74 6 3 1 Standard ERI Meth...

Page 6: ...6 3 Volts Maximum Shock Energy 30 joules Defibrillation Lead Ports Two DF 1 3 2 mm Pacing Lead Ports One IS 1 3 2 mm Dimension 55 x 67 x 13 mm Volume 39 cc Mass 73 g Housing Material Titanium Header...

Page 7: ...s of single channel IEGM storage available to record spontaneous and induced ventricular tachyarrhythmias The Cardiac Airbag is restricted to storage of diagnostic information up to and including 3 tr...

Page 8: ...These programmers are used to interrogate and program the ICDs In addition the programmer software is used to perform the interrogation and programming of the ICDs during implant and follow up testing...

Page 9: ...potentially hazardous leakage currents Lead Systems The use of another manufacturer s I system may cause potential adverse consequences such as under sensing of cardiac activity and failure to deliver...

Page 10: ...influx and possible shunting of high energy therapy Capacitor Reformation Infrequent charg capacitors may extend the charge times of the ICD The capacitors may be reformed manually or the ICD may be...

Page 11: ...mmers to communicate with the device TMS 1000 PLUS or EPR 1000 PLUS Sealing Sy m ste Failure to properly insert the torque wrench ld Be aware that the changes in the hocks may be withheld if preparing...

Page 12: ...ramming wand immediately to restore the permanent program EP Test Functions Ensure that cardiac resuscitation equipment is available during all EP Test Function operations Physicians should be trained...

Page 13: ...as failure to do so may result in damage to the lead s and or difficulty connecting lead s Cross Threading Setscrew s To prevent cross threading the setscrew s do not back the setscrew s completely o...

Page 14: ...m may as a result generate false system status information for the implant Impedance Measurement During the impedance measurement with high stimulation amplitudes nerve or skeletal muscles may be brie...

Page 15: ...n and prior to performing any of the following medica addition the ICD should be checked after the procedures to assure proper programming Diathermy Diathermy therapy is not recommended for ICD patien...

Page 16: ...ddles as far as possible away from the implanted device and lead system After delivery of an external defibrillation shock interrogate the ICD to confirm device status and proper function Lithotripsy...

Page 17: ...y be a potential interaction between cellular phones and BIOTRONIK ICD systems Potential effects may be due to either the cellular phone signal or the magnet within the telephone and may include inhib...

Page 18: ...raction of EMI with implanted ICDs is not possible due to the disparate nature of EMI 1 4 9 Electronic Article Surveillance EAS Equipment such as retail theft prevention systems may interact with puls...

Page 19: ...ssive fibrotic tissue growth Extrusion Fluid accumulation Formation of hematomas or cysts Inappropriate shocks Infection Keloid formation Lead abrasion and discontinuity Lead migration dislodgment Myo...

Page 20: ...This clinical study was performed with the Phylax XM and Phylax 06 ICDs which are earlier versions of the Cardiac Airbag ICDs The observed adverse events are applicable because the Cardiac Airbag ICD...

Page 21: ...t result in invasive intervention injury or death Table 1 Reported Adverse Events AEs Number of Patients 154 Number of Patient Years 107 1 Event of pts with AEs of pts with AEs of AEs AE pt yrs Compli...

Page 22: ...lt ca r c rgi tachyarrhythmia detection As a result appropriate 2 of the sue lated t ov ent o toggle during hig age pacito ha ng or therapy was not delivered in a timely manner The orientation of the...

Page 23: ...uced programmable feature set Minor adjustments to therapy delivery options including no availability of ATP Reduced size from 69 cc to 39 cc Addition of Home Monitoring functionality The rate adaptiv...

Page 24: ...te The primary endpoint of the study was to evaluate the ventricular tachyarrhythmia conversion rate Patients underwent standard ICD implantation and then were evaluated at predischarge and regular fo...

Page 25: ...l number of patients 5 2 8 154 2 3 10 0 Appropriate Sensing and Pacing Rate2 98 0 703 717 96 8 98 9 1 Conversion data were collected in the clinical study for both induced and spontaneous tachyarrhyth...

Page 26: ...regnancy If there is a need to image the device care should be taken to minimize radiation exposure to the fetus and the mother Nursing Mothers Although appropriate biocompatibility testing has been c...

Page 27: ...D Patients The prospective ICD implant candidate should undergo a cardiac evaluation to classify any and all tachyarrhythmias In addition other patient specific cardiac information will help in select...

Page 28: ...itry have been optimized to ensure appropriate sensing during all potential cardiac rhythms Cardiac signals vary in amplitude therefore detection thresholds cannot be static The Automatic Sensitivity...

Page 29: ...er configuration is only accessed by code and is not available in the US Typically the upper threshold UT is reset with each sensed ot occur during The UT is set at 50 of the measured R wave for the S...

Page 30: ...Sensitivity Con w period the UT is set to 3 0 mV After the T wave discrimination period the threshold is further reduced to 1 5 mV Both the Upper and Lower Thresholds decay over time but the Minimum T...

Page 31: ...ricular tachyarrhythmias Each detected ventricular tachyarrhythmia is clas entricular Fibrillation VF zone limit 2 2 V The Cardiac Airbag ICDs detect and measure the rate of sensed cardiac signals to...

Page 32: ...ble VT rate classifications The Interval Counter is the number of intervals required to declare a tachyarrhythmia as VT A ta must meet both the rate interval criteria and the preset Interval Counter i...

Page 33: ...te between s increase and a ventricular tachycardia which typically begins with an abrupt rate change Onset criterion evaluates the most recently sensed cardiac intervals and compares it to the previo...

Page 34: ...nd independent of the initial detection criteria 2 3 1 VT Redetection The Redetection Count is not programmable and remains independent of the initial dete Redetection of an ongoing tachyarrhythmia is...

Page 35: ...rmation of the arrhythmia The remaining shock energies are non programma confirmation All shocks utiliz and normal polarity 2 4 1 1 Number of Shocks The number of shocks defines the total number of sh...

Page 36: ...to 40 of the initial charge voltage the shock switches polarity At that point it discharges to 20 of the initial charge voltage before the w provides a pictorial representation of the biphasic wavefo...

Page 37: ...ing rate to increasing or decreasing patient activity based on data collected from a motion sensor within the ICD Separate criteria controls the rate of increase and decrease of pacing as well as the...

Page 38: ...se and Rate Decrease parameters work together with the Gain to determine how quickly pacing rate increases or decreases to occur with changes in the sensor output A rate increase of 2 ppm per second w...

Page 39: ...this status is transmitted Further measurements and transmissions of Home Monitoring data are no longer possible 1 second the ICD will begin bradycardia therapy at the post shock pacing rate amplitud...

Page 40: ...vice Figure The minimal distance between the 2 6 1 2 Patient Device 3 is designed for use in the home device and the associated a BIOTRONIK Service Center ual and is comprised of the mobile charging s...

Page 41: ...t is titled depending on the type of event transmission This Cardio Report contains current and previous implant data The Cardio Report is sent to the attending physician via fax All reports use the s...

Page 42: ...ta at an When certain cardiac and technical a repor ibed as an event message The following cardiac and technical events initiate Special device status errors VT Detected and terminated VF First ineffe...

Page 43: ...in those hat do not regularly receive shock therapy The ICD is automatically re form the capacitors every 3 months The p eset following an automatic or manual capacitor reform or any device initiated...

Page 44: ...ng and detection as programmed If a tachyarrhythmia is detected n the process is aborted and therapy is available if required 2 6 4 Patient and Implant Data input of data ent Throughout the reform dur...

Page 45: ...tem status screen presents a large variety of information about the Cardiac Airbag ICDs including Serial number always displayed after interrogation End of Service Last charge event Date Energy Charge...

Page 46: ...esented as a table of events with the most recent episode listed first Each IEGM segment can be viewed from the episode detail sub menu by selecting the EGM button From this screen an IEGM can be expa...

Page 47: ...Redetection Delivered Shocks The ICD can store IEGMs for the following events prior to ERI 3 spontaneous VF episodes treated with shock therapy Non sustained VF episodes without shock thera 10 VT mon...

Page 48: ...period of several seconds The frequency of the pulses and the duration of the Sho means aced stim lses Nu e ization interval R S1 and 2 6 7 Arrhythmia Induction Features Cardiac Airbag IC burst are de...

Page 49: ...r and the shock command will be delivered upon selecting the OK button in this screen After each manual shock the EP test screen will display the shock energy lead impedance and charge time 2 6 9 Test...

Page 50: ...ed to allow the user to be directed through the required program modules with the press of a single button Interrogation of the device Measurement of the battery status Interrogation of the episode co...

Page 51: ...is presented below VT or deac y in the ICD The user ansmitted Interrogate ICD withou ta t select Skip Follow Up Interrog list d within the Parameter screen Main Function Keys VF Detection The VT VF D...

Page 52: ...time setting of the programmer Holter Time Setting clears the date and time from the implant memory and sets the internal clock of the implant to the time of the programming is wing tabs t Each of co...

Page 53: ...data from the open window 3 3 Parameter Window The Pa therapies pacing are completed from this Parameter screen see Figure 8 Detection and Therapy parameters are displayed only if VT VF Detection is...

Page 54: ...48 Cardiac Airbag Technical Manual Figure 8 Parameter Window...

Page 55: ...Cardiac Airbag Technical Manual 49...

Page 56: ...product information label The label contains the model specifications technical data serial number use before date and sterilization and storage information The ICD and its accessories have been seal...

Page 57: ...Cardiac Airbag Technical Manual 51...

Page 58: ...ter PA 4 used to connect the PK 44 cable to sensing and pacing leads while the stylet is still inserted Perform an interrogation of the ICD Ensure programmer operation nominal device parameters and ba...

Page 59: ...er of the outer oral region The device may be sue or in the muscle e etched side facing container as indicated by the arrow Do not contaminate the inner tray Take out the inner sterile tray by grippin...

Page 60: ...se with a defibrillation lead systems having one IS 1 connector for ventricular sensing and pacing and up to two DF 1 connectors for delivery of shock therapy Figure 9 depicts the configuration of the...

Page 61: ...il it is firmly placed in the setscrew Rotate the wrench counterclockwise until the receptacle is clear of obstruction Insert the lead connector into the connector port of the ICD without bending the...

Page 62: ...conversion be done prior to closing the pocket This will ensure that the lead system has been securely connected to the device and has not changed position enclosed torque wrench through the perforat...

Page 63: ...EPR 1000PLUS Ensure both the programmer date and time are correct To change 2 the date and time access 3 G cable and verify the signal before the patient is prepped and draped More Preferences PC Conn...

Page 64: ...re 10 Performing a manual capacitor reformation 2 Formation See Figure 1 Press Options button Select Start 11 and then OK meter is 5 arge Time 3 During charging an ICD Charging displayed in the ICD St...

Page 65: ...ons button 2 In the Programmer area press Implant List button to return to the main programmer screen 3 Select TMS 1000 from the test Implant List Connecting the ventricular lead for testing 1 Connect...

Page 66: ...2 Press and hold the Record Data See Figure 12 button to measure the R wave amplitude There is an audible tone when the ICD has detected a sensed R wave 3 In general R wave amplitudes should be great...

Page 67: ...ess Start Pacing to begin threshold testing at the displayed parame 4 Decrease Pulse Amplitudes See Figure 13 until loss of capture occurs rhythm 5 Press Stop Pacing to return to the patient s intrins...

Page 68: ...nnecting the ICD to the leads 5 Verify VT VF Detection is disabled 6 Hand off the pre programmed ICD to the implanting physician 7 Disconnect the ventricular lead pins from the PK 44 cable and insert...

Page 69: ...d e automatically verified 6 Check R wave Amplitudes greater than 5 mV Verify pac acceptable range 300 1000 Verify Battery Status is OK Perform a Pacing Threshold Press Resume Follow up to print out t...

Page 70: ...wave or HF burst Press Print button to be 2 gin printing induction 3 Press Start VT VF Induction See Figure 14 and OK to induce VF 4 Observe the IEGM markers and ICD charging indicator on the program...

Page 71: ...Read Shock Data is automatically updated with shock values 7 Press Print to print out the DFT Test Screen 8 Select Holter and review EGM to ensure proper sensing during VF 9 Repeat induction process...

Page 72: ...g of the following parameters detection intervals pacing sensing and therapy 2 Select Transmit to permanently program final parameters 3 Verify VT VF Detection is Enabled 4 Select Parameter button and...

Page 73: ...Cardiac Airbag Technical Manual 67...

Page 74: ...with the physicians and the permanent program should be retransmitted to the ICD ACC AHA NASPE Guidelines recommend the physician perform a patient follow up visit every 3 months 6 2 Suggested Cardia...

Page 75: ...activate the Follow Up Assistant program ensure that all boxes are checked 2 Press Start Follow Up located in the lower left corner of the screen This button begins the follow up procedure by performi...

Page 76: ...re occurs 3 If desired turn Print Test ON to run paper during testing Press Start Test to begin threshold testing at displayed parameters Decrease Test Amp cing threshold 6 Press Stop Test Permanently...

Page 77: ...t Printing and analyzing detailed Holter data information 1 Press the Holter See Figure 18 button to view episodes 2 From the Episode List select the episode EGM you wish to view and or print 3 Press...

Page 78: ...ton 2 mplitudes greater than 5 mV 00 Check R A 3 Verify Pacing Impedance values are within an acceptable range 300 10 4 Verify Battery Status is OK Verifying remaining shocks to ERI 1 Press Status but...

Page 79: ...ted VF episo occurred 5 At ERI contact your local BIOTRONIK representative Making parameter changes and obtaining final printouts changed and select the 3 Interrogate the device and print final summar...

Page 80: ...he optimum time for ICD replacement a replacement indicator is provided that notifies the user that replacement within a certain period of time is required Upon reaching ERI the battery has enough ene...

Page 81: ...reformations are equivalent to shocks The estimates associated with 0 pacing support assume the ICD is sensing an intrinsic sinus rhythm at a rate of 70 bpm Table 4 Longevity Estimates VVI Pacing Sup...

Page 82: ...that receive shock therapy increment the treated VF episode count Any VF episode that is detected by the ICD and the resulting charge is aborted prior to receiving a shock does not count against the...

Page 83: ...nitoring for at least three months and to deliver minimum of six high energy shocks The estimates associated with duration of ERI assume the ICD is sensing an intrinsic sinus rhythm at a rate of 70 bp...

Page 84: ...ckaged in a bio hazard container These may be delivered to either the local BIOTRONIK representative or the BIOTRONIK home office for expert disposal Contact BIOTRONIK if you need assistance with retu...

Page 85: ...Cardiac Airbag Technical Manual 79...

Page 86: ...increment and z the largest value NOTE Values depicted in gray are preset in the ICD and are not programmable values Mechanical Properties Parameter Value Range Dimensions 67 x 55 x 13 mm Conducting...

Page 87: ...n and Redetection Parameters for VF Zone Inte OFF 200 10 400 ms m rval Rate 150 300 bp Number of X 8 Number of Y 12 Termination Detection 12 in 16 Shock Therapy Parameter Value Range Number of Shocks...

Page 88: ...Maximum Sensor Rate 100 125 ppm Sensor Gain 4 Sensor Threshold mean Rate Increase 2 ppm s Rate Decrease 0 4 ppm s Post Shock Bradycardia Therapy Parameter Value Range Mode VVI Rate 70 ppm Amplitude 7...

Page 89: ...tions are prohibited Although this transmitter has been approved by the Federal ommunications Commission there is no guarantee that it will not receive interfer ion from this transmitter interference...

Page 90: ...84 Cardiac Airbag Technical Manual...

Page 91: ...vailable BIOTRONIK bipolar ICD lead systems or other lead systems with which it has been tested The Cardiac Airbag family of ICDs is mechanically compatible with IS 1 sensing pacing lead connectors DF...

Page 92: ...Distributed by BIOTRONIK Inc 6024 Jean Road Lake Oswego OR 97035 5369 800 547 0394 24 hour 503 635 9936 FAX Manufactured by BIOTRONIK GmbH Co Woermannkehre 1 D 12359 Berlin M4088 A 3 03 Germany...

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