Biocompatible ventricular assist and arrhythmia control device
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United States of America Patent
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May 15, 1990
Grant Date -
N/A
app pub date -
Feb 27, 1987
filing date -
Feb 27, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for compressing a ventricle of a heart from one or more sides in synchronism with the natural contraction of the ventricle (systole), and providing arrhythmia control of the heart, is completely implantable in the body of a patient user externally of the heart. Compression of the ventricle is produced by a plurality of spaced compression plate assemblies and a ventricle apex-compression plate, a single compression plate-band assembly or tightenable bands. The compression plate assemblies comprise suitably located electrodes for heart monitoring purposes. A power supply of the implanted device can be recharged transcutaneously, and various other components of the device can be noninvasively programmed and interrogated by external circuits. The compression plate assemblies may be operated by a small brushless DC motor. An implantable manual pump mechanism, for operating the compression plate assemblies, also is provided for emergency purposes. The components of the implanted device also include a cardiac pacer, a defibrillator/cardioverter, a recorder and an alarm.
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