Surgery – Truss – Pad
Patent
1990-08-28
1992-01-28
Jaworski, Francis
Surgery
Truss
Pad
A61N 136
Patent
active
050835629
ABSTRACT:
A method and apparatus for applying an asymmetric biphasic exponential waveform countershock to the heart useful in an implantable cardioverter or defibrillator, wherein the second phase has a start amplitude of substantially one half that of the first phase, and wherein the polarity of a capacitor discharging through a current path including the heart is reversed. A voltage reversing circuit may include a voltage shifter which shifts voltage associated with switching elements in the circuit to reduce voltage stresses in the switching elements.
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Batty, Jr. John R.
de Coriolis Paul E.
Shook Bruce J.
Jaworski Francis
Telectronics Pacing Systems Inc.
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