Surgery: light – thermal – and electrical application – Light – thermal – and electrical application – Electrical therapeutic systems
Patent
1996-02-09
1998-09-29
Lateef, Marvin M.
Surgery: light, thermal, and electrical application
Light, thermal, and electrical application
Electrical therapeutic systems
607 37, 128901, A61N 1362
Patent
active
058140760
ABSTRACT:
The present invention provides an improved extracardiac indifferent electrode configuration for implantable medical devices that overcomes the deficiencies of known unipolar and bipolar cardiac sensing and pacing systems. In particular, the present invention provides an indifferent electrode configuration wherein a subcutaneous extracardiac electrode is advantageously positioned so as to provide a truly indifferent return or reference electrode that does not inadvertently stimulate torso muscle and is not subject to detecting myopotentials generated by adjacent torso muscle. In addition, by being placed outside the heart, the indifferent electrode allows the intracardiac catheter to maintain a low profile, i.e., allows the catheter to be as small as possible, and does not generate metallic ions or cause degradation of catheter materials by generating such ions.
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Cardiac Control Systems, Inc.
Clarke Dennis P.
Lateef Marvin M.
Schaetzle Kennedy J.
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