US3856015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized cutting loop for resectoscope
Assignee: Individual
•
Filing: 1973-06-08
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Granted: 1974-12-24
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Expires: 1993-06-08
Abstract
Abstract A cutting loop assembly forming part of a resectoscope used for visually observing and performing transurethral resections has an elongated conduit through which there extends an electrically conductive insulated wire which is formed at one end of the conduit to provide upwardly extending and diverging sections and spaced parallel sections which at their distal ends support the loop which performs the cutting operation. That part of the assembly consisting of the arms and loop is stabilized, strengthened and reinforced by a tube which is positioned over the diverging and parallel arms and is connected to the parallel arms adjacent their distal ends.
Inventors
- 👤 J Iglesias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:35
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/149; A61B1/00; A61B1/307; A61B17/00; A61B17/32; A61B17/320016; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61M; A61M1/00; A61M1/71; A61M1/77; A61M3/00; A61M3/02; A61M3/0279; A61M3/0283
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
223 words
As a new article of manufacture, a cutting loop assembly for a resectoscope used for performing transurethral operations, comprising an elongated conduit, an insulated electrically conductive wire extending through the conduit and protruding from the distal end thereof and formed into a wire loop comprising first sections which diverge from the conduit and extgend angularly upwardly therefrom, second sections which extend from the first sections in spaced parallel relation to each other and parallel to the conduit, and a depending un-insulated loop connecting the ends of the second sections of the wires, and means for reinforcing and stabilizing the wire loop comprising an elongated rigid member formed of sheet material having a tubular part at its proximate end which is rigidly connected to the distal end part of the conduit above the conduit and extends longitudinally thereof and outwardly therefrom, and a part distal to the tubular part which is part circular in cross section and forms an extension of the upper part of the tubular part and has lower edges which are parallel to adjacent, and in a plane even with or above the first and the second sections of the wire loop, and means rigidly connecting the part circular part of the elongated rigid member to the second sections of the wire loop at a part thereof adjacent the depending loop.
Claim 2
Dependent Claim
223 words
As a new article of manufacture, a cutting loop assembly for a resectoscope used for performing transurethral operations, comprising an elongated conduit, an insulated electrically conductive wire extending through the conduit and protruding from the distal end thereof and formed into a wire loop comprising first sections which diverge from the conduit and extgend angularly upwardly therefrom, second sections which extend from the first sections in spaced parallel relation to each other and parallel to the conduit, and a depending un-insulated loop connecting the ends of the second sections of the wires, and means for reinforcing and stabilizing the wire loop comprising an elongated rigid member formed of sheet material having a tubular part at its proximate end which is rigidly connected to the distal end part of the conduit above the conduit and extends longitudinally thereof and outwardly therefrom, and a part distal to the tubular part which is part circular in cross section and forms an extension of the upper part of the tubular part and has lower edges which are parallel to adjacent, and in a plane even with or above the first and the second sections of the wire loop, and means rigidly connecting the part circular part of the elongated rigid member to the second sections of the wire loop at a part thereof adjacent the depending loop.
Claim 3
Dependent Claim
20 words
The new article of manufacture according to claim 1, in which the conduit is releasably connected to the wire loop.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |