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Pacemaker
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Pinnacle-R SSIR + Model 297
Specifications | | Programmable Parameters Values
| | | u | Pacing Modes
| VVI, VVT, VOO, OVO, AAI, AAT, AOO, OAO, VVIR, VVTR, VOOR, AAIR, AATR, AOOR | | u | Basic Pacing Rates | From 32 to 120 ppm in steps of 2 ppm | | u | Pulse Widths | 21 values from 0.07 ms to 1.50 ms in steps of 0.03 ms | | u | Pulse Amplitudes | 36 values from 0.2 to 7.5 V | | u | Refractory Periods | From 200 to 300 ms in steps of 15.625 ms | | u | Sensitivities | From 0.5 to 11.0 mV
| | u | Hysterisis
| 2 ppm to 40 ppm in steps of 2 ppm | | u | Pacing Polarities
| Unipolar / Bipolar | | u | Sensing Polarities
| Unipolar / Bipolar | | u | Upper rate in trigger mode
| From 80 to 180 ppm in steps of 2 ppm | | | | | | Rate Response
| | | u | Upper Rate | From 80 to 180 ppm in steps of 2 ppm | | u | Response to Activity | From 1 to 16 | | u | Reaction Times (Up Time) | From 10 to 60 s, in steps of 10 s, to increment the rate 80 ppm | | u | Recovery Times (Down Time) | From 1 to 10 m, in steps of 1 m, to decrement the rate 80 ppm | | u | Automatic Refractory Change | When programmed, if the rate is greater than 120 ppm, the refractory period switches to 250 ms. | | | | |  | |
| Tachycardia Treatment | | | u | Temporary programming | Asynchronous pacing with rates from 32 to 380 ppm | | |
Magnetic Response
| | | u | Mode | VOO | | u | Rate | BOL (begin of life): 95 ppm
ERI (elective replacement): 85 ppm | | |
End of Service Indicators ERI (Elective replacement): When the remaining capacity of the battery is between 4% and 8%, the pacing rate switches to 85 ppm when a magnet is applied. EOL (End of Life): When the remaining capacity of the battery is under 4% of the initial capacity, the pacing rate slows 10 ppm.
Power Source | Battery Chemistry | | Lithium – Iodine WG 8711 | | Initial Voltage | | 2.8 V. | | Maximum Available Capacity | | 0.82 A-hr. |
Physical Characteristics | Dimensions | | 49 x 38 x 7 mm | | Mass | | 24 g. | | Case Material | | Titanium | | Connectors | | 3.2mm, IS-1/VS-1 |
Service Life The expected life of the generator, pacing 100% at 70 ppm, with 2.5 V amplitude and pulse width of 0.488 ms, is 10.2 years.
Telemetry Data | Parameters | | All the programmable parameters | | Identification | | Model and serial number | | Battery condition | | Voltage, ERI and EOL indicators | | Statistics | | Keeps track of pacing and sensing events, as well as ventricular premature events. Frequency Histograms | | Lead Impedance | | | | Marker Pulses | | | | Threshold Test | | | | Rate Responsive Wizard | | |
Protections Noise detection: When the pacemaker senses events with frequency exceeding 11 Hz, it switches to VOO mode. Run Away Limit: The pacemaker includes an anti-runaway circuit to avoid the generation of stimuli with a rate over 200 ppm (except in temporary programming).
Programming The pacemaker is programmed using a microcomputer (usually a Notebook) that runs Windows operating system. It also permits the measurement of the stimulation and sensing thresholds as well as the generation of printed reports.
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