US3949757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter for atrio-ventricular pacemaker
Assignee: Individual
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Filing: 1974-05-13
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Granted: 1976-04-13
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Expires: 1994-05-13
Abstract
Abstract A catheter assembly for establishing independent electrical connection between a signal generating means and the surfaces of the atrium and ventricle of a heart is disclosed to include an atrial catheter conductor and a ventricular catheter conductor. The conductors are jointly mounted for concurrent introduction into the vicinity of the heart. The atrial catheter is slidably received within an insulating means the terminal end of which is displaced from the distal tip of the ventricular catheter conductor so that the ventricular catheter conductor first may be positioned in electrical contact with the ventricular surface whereafter the atrial catheter conductor may be slidably extended from the insulating means to a position in electrical contact with the surface of the atrium.
Inventors
- 👤 George H. Sabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:24
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
275 words
A catheter assembly for establishing independent electrical connection between a signal generating means and the surfaces of the atrium and ventricle of a heart, comprising: a first catheter for establishing electrical connection between said signal generating means and said surface of said ventricle, said first catheter including a conductor with a connector end for electrical connection with said signal generating means and a distal tip for establishing electrically conductive contact with said surface of said ventricle; a first insulating covering rigidly encapsulating said first conductor from a point adjacent said connector end to a point adjacent said distal tip, said first insulating covering having a longitudinally extending passage formed therein, said passage extending from a point adjacent to the conductor end of said first catheter to a point displaced from said distal tip of the conductor of said first catheter; a second catheter slidably disposed within said passage, said second catheter for establishing electrical connection between said signal generating means and said surface of said atrium, said second catheter including a conductor having a connector end for electrical connection with said signal generating means and a distal tip for establishing electrically conductive contact with said surface of said atrium, said second catheter being flexible and including a resiliently curvilinear portion adjacent to said distal tip, said resiliently curvilinear portion being flexible between rectilinear and curvilinear configuration in response to sliding said second catheter longitudinally with respect to said first catheter within said longitudinally extending passage; and a second insulating covering disposed upon said conductor of said second catheter from a point adjacent to said connector and to a point adjacent to said distal tip connector.
Claim 2
Dependent Claim
275 words
A catheter assembly for establishing independent electrical connection between a signal generating means and the surfaces of the atrium and ventricle of a heart, comprising: a first catheter for establishing electrical connection between said signal generating means and said surface of said ventricle, said first catheter including a conductor with a connector end for electrical connection with said signal generating means and a distal tip for establishing electrically conductive contact with said surface of said ventricle; a first insulating covering rigidly encapsulating said first conductor from a point adjacent said connector end to a point adjacent said distal tip, said first insulating covering having a longitudinally extending passage formed therein, said passage extending from a point adjacent to the conductor end of said first catheter to a point displaced from said distal tip of the conductor of said first catheter; a second catheter slidably disposed within said passage, said second catheter for establishing electrical connection between said signal generating means and said surface of said atrium, said second catheter including a conductor having a connector end for electrical connection with said signal generating means and a distal tip for establishing electrically conductive contact with said surface of said atrium, said second catheter being flexible and including a resiliently curvilinear portion adjacent to said distal tip, said resiliently curvilinear portion being flexible between rectilinear and curvilinear configuration in response to sliding said second catheter longitudinally with respect to said first catheter within said longitudinally extending passage; and a second insulating covering disposed upon said conductor of said second catheter from a point adjacent to said connector and to a point adjacent to said distal tip connector.
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) | 1979-04-13 | 1979-10-13 | 1980-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-13 | 1983-10-13 | 1984-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-13 | 1987-10-13 | 1988-04-13 | $7700.00 | Window Closed / Lapsed |