Patent US2458502A successfully refreshed from Google Patents.
Patent US6106515A successfully refreshed from Google Patents.
US4058128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode
Assignee: Individual
•
Filing: 1976-08-26
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Granted: 1977-11-15
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Expires: 1996-08-26
Abstract
Abstract An electrode useful inter alia for secure and reliable implantation in a human heart which has a barb element sharp in one longitudinal direction and dull in the other, and a placement element alongside the barb and spaced a predetermined distance from it.
Inventors
- 👤 Howard A. Frank
- 👤 Paul M. Zoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/0587
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
194 words
An electrode comprising a barb element adapted to be inserted into an organ of a mammal, a placement element to slidingly engage said organ during insertion of said barb element, and transversely extending connecting means for connecting a first extremity of said barb element and said placement element and lead means electrically connected to said connecting means for connection to an electrical instrument, said barb element including a longitudinally extending shaft and a barb at a second extremity of said barb element, said barb being sharp in a longitudinal direction away from said first extremity for easy insertion into the body of the mammal and blunt in the opposed longitudinal direction to hold said barb in its inserted position, said placement element providing a substantially fixed placement-defining surface extending longitudinally alongside said barb shaft and being transversely spaced therefrom by said connecting means a predetermined amount to gauge and limit the extent of depth of insertment of said barb and the direction of insertion of said shaft into the body and to hold said barb in position and against rotation in said organ, and said barb element and said connecting means being electrically conductive.
Claim 2
Dependent Claim
194 words
An electrode comprising a barb element adapted to be inserted into an organ of a mammal, a placement element to slidingly engage said organ during insertion of said barb element, and transversely extending connecting means for connecting a first extremity of said barb element and said placement element and lead means electrically connected to said connecting means for connection to an electrical instrument, said barb element including a longitudinally extending shaft and a barb at a second extremity of said barb element, said barb being sharp in a longitudinal direction away from said first extremity for easy insertion into the body of the mammal and blunt in the opposed longitudinal direction to hold said barb in its inserted position, said placement element providing a substantially fixed placement-defining surface extending longitudinally alongside said barb shaft and being transversely spaced therefrom by said connecting means a predetermined amount to gauge and limit the extent of depth of insertment of said barb and the direction of insertion of said shaft into the body and to hold said barb in position and against rotation in said organ, and said barb element and said connecting means being electrically conductive.
Claim 3
Dependent Claim
14 words
The electrode of claim 1 in which said placement-defining surface is of silicone rubber.
Claim 4
Dependent Claim
18 words
The electrode of claim 1 in which said placement element includes at least one tissue hole extending therethrough.
Claim 5
Dependent Claim
16 words
The electrode of claim 1 in which said barb is flat in said opposed longitudinal direction.
Claim 6
Dependent Claim
35 words
The electrode of claim 1 in which said placement element includes at least one tissue hole extending therethrough, said placement-defining surface is of silicone rubber, and said barb is flat in said opposed longitudinal direction.
References Cited (Backward Citations)
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Cited
US3253595A
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US3580242A
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US3737579A
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US3844292A
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US3978865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-14 | 1981-05-16 | 1981-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-14 | 1985-05-16 | 1985-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-14 | 1989-05-16 | 1989-11-15 | $7700.00 | Window Closed / Lapsed |