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Cardiac Pacemakers - Symphony 2250 Model

Supplier: Life Systems Medical

The Symphony pacemaker is highly advanced, providing everything that modern pacemakers are expected to provide and more.

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Physical Characteristics

Dimensions : …… 47.3 x 36.2 x 6.4 mm
Weight : ………………………………21 g
Volume : …………………………9.3 cm3
Connector : ……… IS-13.2 mm bipolar
Longevity : ……118 months until ERI
                          (CENELEC conditions:
                          100% pacing in VDDR -
                           0 min- 1 at 2.5 V - 0.5 ms - 500 O).

Follow-up Functions

Patient Data

Battery status:
• magnet rate,
• battery impedance,
• battery curve.

Lead impedance:

  • Pacing threshold test with simultaneous transmission of intracardiac ECG
  • Automatic measurement of intrinsic waves amplitudes.
  • Intracardiac ECG and markers.
  • Temporary programming.

NIPS (Electro-physiologic studies):

  • Burst, extra-stimuli sequences.

Monitoring of the rate-responsive function:

  • Automatic recording of sensor data during 20 minutes and simulation of the sensor response.

24-hour follow-up:

AIDA+ diagnostic data over 24 hours, hour by hour.

Programmable Parameters:

  • Basic parameters
    • Chamber A - V
    • Mode VVI - VVT - VOO - AAI - AAT - AOO
    • Basic rate 30 – 40 - 45 - 50 - 55 - 60 - 65 - 70 - 75 - 80 - 85 - 90 - 95 min- 1
    • Maximum tracking rate 100 - 110 - 120 - 130 - 140 - 155 - 165 - 175 - 185 min- 1
    • Hysteresis 0 - 5 - 10 - 20 - 35 %

Pacing and sensing parameters

    • Amplitude 1.5 - 2.0 - 2.5 - 3.0 - 3.5 - 4.0 - 5.0 - 7.5 V
    • Pulse width 0.10 - 0.25 - 0.35 - 0.50 - 0.60 - 0.75 - 0.85 - 1.00 ms
    • Atrial sensitivity 0.4 - 0.6 - 0.8 - 1.0 - 1.2 - 1.5 - 1.8 - 2.0 - 2.2 - 2.5 - 2.7 - 3.0 - 3.5 - 4.0 - 4.5 - 5.0 - 6.0 mV
    • Ventricular sensitivity 1.0 - 1.2 - 1.5 - 1.8 - 2.0 - 2.2 - 2.5 - 2.7 - 3.0 - 3.5 - 4.0 - 4.5 - 5.0 - 6.0 - 8.0 - 10.0 - 15.0 mV
    • Sensing polarity Unipolar - Bipolar
    • Pacing polarity Unipolar - Bipolar

Special features

    • Rate smoothing OFF - Very slow - Slow - Medium - Fast
    • Autosensing Auto - Monitor
    • Ventricular Autothreshold Auto - Monitor - OFF
    • Minimum ventricular amplitude 1.5 - 2.0 - 2.5 - 3.0 - 3.5 V

Rate-responsive parameters

    • Sensor choice MV+G - MV - G
    • Rate responsive mode Learn - RRauto - RRfixed - OFF
    • Physical exercise Very low - Low - Medium - High - Very high

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