US3865118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transvenous coaxial catheter
Assignee: University of California Berkeley
•
Filing: 1973-12-27
•
Granted: 1975-02-11
•
Expires: 1993-12-27
Abstract
Abstract Pacer catheter for an A-V stimulator comprising a catheter assembly which may be passed through a single channel to the heart which assembly will carry both atrial and ventricular stimulation. The catheter provides at least two mutually insulated spatially adjustable electrical conductors, one for stimulating the atrium and an additional one for stimulating the ventricle.
Inventors
- 👤 Alan R Bures
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:23
CPC Classifications
A; A61; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/05; A61N1/056
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
An elongate pacing electrode catheter system capable of pacing both the atrium and the ventricle comprising: an elongate flexible electrode extending the length of the catheter system for stimulating the ventricle and comprising a ventricle electrode system, said ventricle electrode system terminating in a distal tip arranged to be moved axially of the catheter system into stimulating contact with the wall of a ventricle, an elongate atrial electrode system extending the length of the catheter system and comprising an atrial electrode system, said atrial electrode system comprised of at least two energy conducting elements reciprocally movably mounted in opposed positions about a central portion of the ventricle electrode system rearward of the distal tip thereof, said elements including stimulation distal tips, there being means arranged to reciprocally move said atrial electrode system stimulating distal tips from a collapsed to an extended operative position, means allowing said ventricle electrode system to be moved relative to the atrial electrode stimulating tips when said tips are in an extended position for atrial stimulation.
Claim 2
Dependent Claim
170 words
An elongate pacing electrode catheter system capable of pacing both the atrium and the ventricle comprising: an elongate flexible electrode extending the length of the catheter system for stimulating the ventricle and comprising a ventricle electrode system, said ventricle electrode system terminating in a distal tip arranged to be moved axially of the catheter system into stimulating contact with the wall of a ventricle, an elongate atrial electrode system extending the length of the catheter system and comprising an atrial electrode system, said atrial electrode system comprised of at least two energy conducting elements reciprocally movably mounted in opposed positions about a central portion of the ventricle electrode system rearward of the distal tip thereof, said elements including stimulation distal tips, there being means arranged to reciprocally move said atrial electrode system stimulating distal tips from a collapsed to an extended operative position, means allowing said ventricle electrode system to be moved relative to the atrial electrode stimulating tips when said tips are in an extended position for atrial stimulation.
Claim 3
Dependent Claim
39 words
The electrode system of claim 1 in which: said elongate flexible ventricle electrode for stimulating the ventricle is substantially along a central axis of the system, and the elongated atrial electrode system is mounted concentric to the ventricle electrode.
Claim 4
Dependent Claim
29 words
The system of claim 2 in which the means arranged to reciprocally move said atrial electrode system is a catheter through the center of which passes the ventricle electrode.
Claim 5
Dependent Claim
25 words
The system of claim 3 in which the atrial electrode system is comprised of at least two electrode wires mounted in association with said catheter.
Claim 6
Dependent Claim
20 words
The system of claim 4 in which a second catheterlike member is mounted for reciprocal movement over said electrode wires.
Claim 7
Dependent Claim
51 words
An elongate pacing electrode catheter system according to claim 1 in which a catheter covering is movably mounted about a major portion of the ventricle electrode system and in which the ventricle electrode system has mounted thereabout portions of the atrial electrode system terminating in resilient deformable normally S-shaped stimulating tips.
Claim 8
Dependent Claim
119 words
An elongate pacing electrode catheter system capable of pacing both the atrium and the ventricle comprising: an elongate flexible electrode extending the length of the catheter system for stimulating the ventricle, said electrode for stimulating the ventricle including a distal tip arranged to be moved into stimulating contact with the wall of a ventricle, an elongate atrial electrode system, said atrial electrode system comprised of at least one energy conducting element mounted about a central portion of the ventricle electrode rearward of the distal tip thereof, said elements including stimulation distal tip means, there being means arranged to reciprocally move said atrial electrode system stimulating distal tip means from a first substantially coaxial position to an extended operative position.
Claim 9
Dependent Claim
119 words
An elongate pacing electrode catheter system capable of pacing both the atrium and the ventricle comprising: an elongate flexible electrode extending the length of the catheter system for stimulating the ventricle, said electrode for stimulating the ventricle including a distal tip arranged to be moved into stimulating contact with the wall of a ventricle, an elongate atrial electrode system, said atrial electrode system comprised of at least one energy conducting element mounted about a central portion of the ventricle electrode rearward of the distal tip thereof, said elements including stimulation distal tip means, there being means arranged to reciprocally move said atrial electrode system stimulating distal tip means from a first substantially coaxial position to an extended operative position.
References Cited (Backward Citations)
US3478746A
Cited
US3754555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |