Cardioverting system and method with high-frequency pulse delivery
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United States of America Patent
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Sep 6, 1988
Grant Date -
N/A
app pub date -
May 13, 1986
filing date -
May 13, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An implantable cardioverting system wherein a cardioverting or defibrillating voltage is automatically applied across implantable electrodes associated with the heart of a patient. The cardioverting voltage is an exponentially-decaying voltage pulse that is chopped, or broken, at high frequencies to provide a voltage wave packet formed of a plurality of high-frequency cardioverting pulses. The voltage is provided by an internal storage capacitor coupled across implantable electrode leads that is charged to a predetermined voltage level. Upon discharge, an electronic switch is clocked at frequencies preferably in excess of 1 KHz to open and close the circuit formed of the storage capacitor and electrodes.
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