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US5327909A
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Epicardial defibrillator lead
Assignee: Sorin CRM SAS
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Filing: 1991-04-26
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Granted: 1994-07-12
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Expires: 2011-04-26
Abstract
Abstract An epicardial defibrillator lead which is placed into a paracardial space adjacent the phrenic nerve and is supported in position by the paracardium wall. A soft-nosed, rounded, blunt-nosed introducer provides for positioning of the defibrillator lead in the paracardial space. The electrode is formed on one side of a polymer member, which is conforming to the left ventricle and the paracardium wall. The electrode has a polymer backing to insulate the electrode from the paracardium wall. The electrode of the defibrillator lead conforms to the geometrical shape of the left ventricle.
Inventors
- 👤 Joseph C. Kiser
- 👤 James D. Madison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:15
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0587
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
86 words
A cardiac defibrillator lead for insertion through a small incision or percutaneous in the pericardial wall of a heart comprising: a. a first insulating member outer surface; b. a second insulating member outer surface spaced apart from said first insulating member outer surface and including a defibrillator electrode on said second insulating member outer surface; c. an electrical lead connected to said electrode; and, d. inflation means between said insulating member outer surfaces for extending said outer surfaces outward after insertion of said cardiac defibrillator lead.
Claim 2
Dependent Claim
86 words
A cardiac defibrillator lead for insertion through a small incision or percutaneous in the pericardial wall of a heart comprising: a. a first insulating member outer surface; b. a second insulating member outer surface spaced apart from said first insulating member outer surface and including a defibrillator electrode on said second insulating member outer surface; c. an electrical lead connected to said electrode; and, d. inflation means between said insulating member outer surfaces for extending said outer surfaces outward after insertion of said cardiac defibrillator lead.
Claim 3
Dependent Claim
27 words
The cardiac defibrillator lead of claim 1 wherein said defibrillator electrode is adapted for placement adjacent to a phrenic nerve in the left ventricle of said heart.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-07-11 | 1998-01-10 | 1998-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-07-11 | 2002-01-10 | 2002-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-07-11 | 2006-01-10 | 2006-07-12 | $7700.00 | Window Closed / Lapsed |