Source: http://www.google.com/patents/US6321122?dq=7,752,326
Timestamp: 2014-07-11 13:12:06
Document Index: 523399411

Matched Legal Cases: ['application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09', 'application No. 09']

Patent US6321122 - Single pass defibrillation/pacing lead with passively attached electrode for ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsA single-pass endocardial lead electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity includes a lead body with a circumferential outer surface. The lead includes a first distal end electrode which has a first electrical...http://www.google.com/patents/US6321122?utm_source=gb-gplus-sharePatent US6321122 - Single pass defibrillation/pacing lead with passively attached electrode for pacing and sensingAdvanced Patent SearchPublication numberUS6321122 B1Publication typeGrantApplication numberUS 09/121,018Publication dateNov 20, 2001Filing dateJul 22, 1998Priority dateJul 22, 1998Fee statusPaidPublication number09121018, 121018, US 6321122 B1, US 6321122B1, US-B1-6321122, US6321122 B1, US6321122B1InventorsAvram Scheiner, Curtis C. Lindstrom, Robert S. Booker, III, Yayun Lin, Peter T. Kelley, John E. Heil, William Hsu, Ronald W. Heil, Jr.Original AssigneeCardiac Pacemakers, Inc.Export CitationBiBTeX, EndNote, RefManPatent Citations (101), Non-Patent Citations (8), Referenced by (7), Classifications (4), Legal Events (5) External Links: USPTO, USPTO Assignment, EspacenetSingle pass defibrillation/pacing lead with passively attached electrode for pacing and sensingUS 6321122 B1Abstract A single-pass endocardial lead electrode adapted for implantation on or about the heart and for connection to a system for monitoring or stimulating cardiac activity includes a lead body with a circumferential outer surface. The lead includes a first distal end electrode which has a first electrical conducting surface. The lead body also has a second electrode which has a second electrical conducting surface. The second electrode is adapted for positioning and fixation to the wall of the atrium of the heart. A passive fixation element may be used as part of the second electrode. The lead body also includes a curved portion which facilitates the positioning and passive fixation of the second electrode.
RELATED APPLICATIONS This patent application is related to an application entitled �SINGLE PASS LEAD HAVING RETRACTABLE, ACTIVELY ATTACHED ELECTRODE FOR PACING AND SENSING� which is assigned to a common assignee and is filed on a date even herewith. The related application is incorporated herein by reference.
FIELD OF THE INVENTION The present invention relates to the field of leads for correcting arrhythmias of the heart. More particularly, this invention relates to a single lead which can simultaneously pace/sense and/or defibrillate two chambers of the heart.
SUMMARY OF THE INVENTION A single-pass endocardial lead electrode adapted for implantation and for connection to a system for monitoring or stimulating cardiac activity includes a lead body with a circumferential outer surface. The lead includes a first distal end electrode or electrode pair which has a first electrical conducting surface. The lead body also has a second electrode or electrode pairs which has a second electrical conducting surface. The second electrode or electrode pair is adapted for positioning and fixation to the wall of the atrium of the heart. A passive fixation element is used as part of the second electrode or electrode pair. The lead body also includes a curved portion which facilitates the positioning and fixing of the second electrode or electrode pair. The curved portion has a radius near the natural radius of the atrium. The first and second electrode may be a single electrode or a bipolar pair. The curve in the lead body, which is positioned in the right atrium of the heart after implantation, positions the electrode closer to the wall of the atrium to enhance the sensing and pacing performance of the lead.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of the dual chamber single pass lead with dual chamber sense pace and antitachyarrhythmic therapy for electrically stimulating the heart.
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