Implantable automatic difibrillator with low threshold

Details Implantable automatic difibrillator with low threshold Implantable automatic difibrillator with low threshold

1994-05-12

1996-06-25

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

A61N 1375

Patent

active

055295797

ABSTRACT:
An automatic defibrillator is arranged and adapted to be implanted in a cardiac patient. The defibrillator includes a stimulus generator for sensing fibrillation of the patient's heart and for responding by delivering defibrillation energy to the patient's heart via a defibrillation electrode positioned in the right ventricle of the heart. An electrically conductive case houses the stimulus generator, and a conforming biocompatible electrically non-conductive layer is coated over only a predetermined portion less than all of the case to produce a predetermined shape of electric field between the intracardiac defibrillation electrode and the case when the case is used as an electrode for defibrillation. The predetermined portion of the case coated with the non-conductive layer includes a side of the case to be implanted in a direction facing the heart of the patient, with the non-conductive layer being confined solely to the central portion of that side.

REFERENCES:
patent: 5314430 (1994-05-01), Bardy

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