User Manual

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): 2000-1714-1500-1333-1200-1091-1000-923-857-800-750-
706-667 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:
Programmed ampl. (V) 1 1.5 2 2.5 3 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 4.5 5 6
Mid-pulse delivered ampl.
(V)
3.58 4.23 4.47 5.37
Stored amplitude (V) 4.2 4.96 5.25 6.3
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SORIN – INTENSIA VR 124 – U153A