Pacing and Sensing Parameters
Parameter Name | Range | Delivery Settings Per Model | Vitatron T70 DR T70A2 |
Vitatron T60 DR T60A2 |
Mode | DDDR, DDIR, DDD, DDI,
DOO, VDDR, VDD, VVIR, VVI, VVT, VOO, AAIR, AAI, AAT, AOO, OOO |
DDD | DDD |
Lower rate | 40-(5)-130 min-1 | 60 min-1 | 60 min-1 |
Maximum pacing rate | 90-(5)-170 min-1 | 120 min-1 | 120 min-1 |
Maximum tracking rate | 90-(5)-190 min-1 | 140 min-1 | 140 min-1 |
Pulse amplitudea | 0.5-(0.25)-4.0-(0.5)-8.0 V | 3.75 V | 3.75 V |
Pulse durationa | 0.1-(0.05)-1.0 ms | 0.4 ms | 0.4 ms |
Atrial sensitivity | Uni: 0.5-(0.1)-1.0- (0.5)-7.5 mV Bi: 0.25, 0.3-(0.1)-1.0- (0.5)-7.5 mV | 0.7 mV | 0.7 mV |
Ventricular sensitivity | 1.0-(0.5)-10.0 mV | 2.0 mV | 2.0 mV |
Sensing/pacing polaritya | Unipolar, Bipolar | Unipolar | Unipolar |
Atrial blanking on VP | 50-(25)-300 ms | 150 ms | 150 ms |
Atrial blanking on VS | 25-(25)-150 ms | 50 ms | 50 ms |
Ventricular blanking on AP | 20-(5)-50 ms | 30 ms | 30 ms |
Ventricular safety pacing | On, Off | On | On |
Atrial refractory period | 250-(10)-500 ms | 330 ms | 330 ms |
Ventricular refractory period | 250-(10)-500 ms | 260 ms | 260 ms |
Maximum sensed AV delay | 45-(5)-260 ms | 150 ms | 150 ms |
Maximum paced AV delay | 80-(5)-300 ms | 190 ms | 190 ms |
Sensed/Paced AV offset | 20-(5)-50 ms | 40 ms | 40 ms |
Adaptive AV delay | Off, Medianb, Fastc | Median | Median |
Refined Ventricular Pacing | On, Off | Off | Off |
AV delay extension | 60-(20)-120 ms | 60 ms | 60 ms |
Refined Atrial Pacing | On, Off | Off | Off |
Atrial hysteresis | 100-(25)-200 ms | 100 ms | 100 ms |
a Independently programmable in atrium and ventricle.
b Median = 5 ms per atrial rate change of 10 min-1.
c Fast = 10 ms per atrial rate change of 10 min-1.
Other Programmable Parameters
Parameter Name | Range | Delivery Settings Per Model | Vitatron T70 DR T70A2 |
Vitatron T60 DR T60A2 |
Flywheel | On, Off | Off | Off |
Tachy fallback rate | Off, 45-(5)-100 min-1 | Off | Off |
Night tachy fallback rate | 40-(5)-100 min-1 | 60 min-1 | 60 min-1 |
Night lower rate | 40-(5)-130 min-1 | 60 min-1 | 60 min-1 |
Start of night | 18:00-(5 min)-02:55 hh:mm | 00:00 | 00:00 |
End of night | 04:00-(5 min)-11:55 hh:mm | 06:00 | 06:00 |
Pacemaker time | 00:00-(1 min)-23:59 hh:mm | 00:00 | 00:00 |
Post-PVC response | On, Off | On | On |
PVC synchronous Astim | On, Off | Off | Off |
Sensor slope | Auto, Fixed | Auto | Auto |
Activity threshold | Low, Low/Med, Medium, Med/High, High |
Medium | Medium |
Activity acceleration | Fast, Standard, Gradual | Standard | Standard |
Activity deceleration | Fast, Standard, Gradual | Standard | Standard |
Mode switching | Auto, Fixed | Fixed | Fixed |
Mode switching sensitivity | Standard, Moderate | Standard | Standard |
ASP interval | 250-(5)-400 ms | 300 ms | 300 ms |
A burst ratea | 100-(10)-320-(15)-425 min-1 | 130 min-1 | 130 min-1 |
VOO backupa | On, Off | Off | Off |
Ventricular Rate Stabilization | On, Off | Off | Off |
Continuous overdrive pacingb | On, Off | Off | – |
Pace Conditioning | On, Off | Off | – |
Triggered overdrive pacingc | On, Off | Off | – |
PAC Suppression | On, Off | Off | – |
Post-PAC Response | On, Off | Off | – |
Post-AF Response | Off, 70-(10)-120 min-1 | Off | – |
Post-Exercise Response | On, Off | Off | – |
Maximum therapy rate | 70-(10)-120 min-1 | 100 min-1 | 100 min-1 |
AF deceleration | Fast, Medium, Slow | Slow | – |
Selected Episodes trigger | Off, Atrial Rate, Ventricular Rate, Ventricular Variation, Patient Assistant |
Off | Off |
EGM recording | On, Off | Off | Off |
a Only temporarily programmable.
b When continuous overdrive is programmed to “On”, Pace Conditioning is programmed to “Standard”.
c When triggered overdrive is programmed to “On”, all triggered overdrive pacing therapies (PAC Suppression,
Post-PAC Response, Post-AF Response, Post-Exercise Response) are programmed on.
Parameter | Tolerance |
Lower rate (min-1) | Programmed value ±15 ms |
Maximum pacing rate (min-1) | Programmed value ±15 ms |
Maximum tracking rate (min-1) | Programmed value ±15 ms |
Pulse amplitude (V) | Programmed value ≤ 1.0: +40%/-10% Programmed value > 1.0 ≤ 4.0: +20%/-10% Programmed value > 4.0 ≤ 7.0: +10%/-10% Programmed value > 7.0: +10%/- 20% |
Pulse duration (ms) | Programmed value - 0.02/+0.04 |
Atrial sensitivity (mV) | Programmed value ±(10% +0.16) at 37 °Ca |
Ventricular sensitivity (mV) | Programmed value ±(20% +0.16) at 37 °Ca |
Blanking period (ms) | Programmed value ±15 |
Refractory period (ms) | Programmed value ±15 |
Sensed/paced AV delay (ms) | Programmed value ±15 |
Sensed/paced AV offset (ms) | Programmed value ±15 |
Atrial hysteresis (ms) | Programmed value ±15 |
Lead impedance (Ω) | Measured value ±(20% +20) |
Battery voltage (V) | Measured value ±0.03 |
EGM amplitude (atrial) | ±(10% +0.16 mV) +1% of full scale (at 37 °C)a |
EGM amplitude (ventricular) | ±(20% +0.16 mV) +1% of full scale (at 37 °C)a |
ECG marker timing | ±10 ms |
a Add ±10% over temperature range 22 °C to 45 °C.
Telemetered patient and pacemaker data
Data item |
Patient’s name and identification code |
Patient’s date of birth |
Pacemaker type, model number and serial number |
Pacemaker implant date |
Lead manufacturer, model number and serial number (atrial and ventricular) |
Lead implant date (atrial and ventricular) |
Pacemaker dependent (yes/no) |
Symptoms |
Indications for pacing |
Etiology |
Pacemaker time |
Anticoagulation is applied (yes/no) |
Anticoagulation start date |
Anticoagulation start date |
Notes |
Physician’s name and phone number |
Measurements
Measurement |
Remaining pacemaker longevity |
Lead polarity (atrial and ventricular) |
Lead impedance (atrial and ventricular) |
Pulse amplitude (atrial and ventricular) |
Battery status |
Remaining battery capacity |
Battery impedance |
Battery voltage |
Mean battery current |
Consumed battery charge |
Average pulse current |
Pulse energy |
P-wave amplitude |
R-wave amplitude |
Stimulation threshold |
VA interval |
Fast Learning |
Diagnostic Capabilities
Category | Feature |
ECG and therapy analysis | Intracardiac EGM ECG event marker intervals ECG marker annotation Therapy Advisor |
Holters | 24-hour Holter 30-minute Holter |
Histograms/tables | Diurnal rhythm distribution P-wave amplitude Atrial rate Ventricular rate Ventricular rate irregularity VA interval |
History | Diagnostics Tests Parameters |
Counters | Percentage of atrium paced Percentage of physiologic atrial senses Percentage of pathologic atrial senses Percentage of ventricle paced Percentage of ventricle sensed Percentage of AV synchrony Mean V rate during A tachy Number of retrograde atrial senses Number of episodes of retrograde conduction Number of PACs Number of PVCs Number of VSPs Number of accelerometer counts |
Selected Episodes | Atrial Rate Ventricular Rate Ventricular Variation Patient Assistant |
Magnet Mode
Parameter | Rate |
Magnet pacing mode | Fixed rate pacing in programmed mode. |
Magnet rate, battery status "Good" | 100 min-1 (600 ms) |
Magnet rate, battery status "Ageing" | 95 min-1 (630 ms) |
Magnet rate, battery status "Replace PM" | 86 min-1 (700 ms) |
Warning: In magnet mode the pacemaker operates in an asynchronous pacing mode. If the intrinsic rate is higher than the magnet rate, this may induce ventricular tachycardia or ventricular fibrillation.
Exposed materials
Item | Materials |
Can | Titanium |
Connector | Polyether-Urethane (PUR) and silicone rubber |
Physical characteristics
Characteristic | Value |
Dimensionsa | 50.9 x 45.9 x 7.25 mm |
Mass | 28.6 ± 0.5 g |
Volume | 12.7 ± 0.5 cm3 |
Surface area | 33.1 cm2 |
X-ray identification | VF |
Connector | IS-1 dual chamber |
a Connector thickness may vary.
Electrical specifications
Characteristic | Value | |||
Output capacitor | 3.4 μF | |||
Input impedance: atrium | ≥ 100 kΩ | |||
Input impedance: ventricle | ≥ 100 kΩ | |||
Current/Energy consumption | DDDR | DDD | VVIR | VVI |
Pacinga | 24.2 μA | 23.7 μA | 15.4 μA | 14.8 μA |
Inhibited | 12.9 μA | 12.3 μA | 9.4 μA | 8.9 μA |
a 100% pacing at 60 min-1, 3.75 V, 0.4 ms, 500 Ω.
Power source
Characteristic | Value |
Cell type | Pi 223 lithium iodine |
Voltage | 2.8 V (RRTa 2.6 V) |
Capacity | 1.4 Ah (RRTa 0.1 Ah) |
Battery manufacturer | MECC |
a RRT = Recommended Replacement Time.
Interference and high rate protection
Characteristic | Value |
Interference detection frequency | 15.4 ±0.5 Hz (923 ±29 min-1) |
Pacing mode during interference | DOO(R) if programmed to a dual chamber mode. VOO(R) if programmed to a ventricular mode. AOO(R) if programmed to an atrial mode. OOO if programmed to the OOO mode. |
Pacing rate during interference | Pacemaker behaves as if no spontaneous cardiac activity is present. If interference continues, the eventual pacing rate is either the sensor-indicated rate or the lower rate, whichever is the higher. |
Ventricular high rate protection | 205 ±10 min-1 |