Patent US3856015A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3856015A Expired / Lapsed US ⏱️ 0.0 years remaining

Stabilized cutting loop for resectoscope

Assignee: Individual
•
Filing: 1973-06-08
•
Granted: 1974-12-24
•
Expires: 1993-06-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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 12:13
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)

US2448741A Cited
US2888017A Cited
US3752159A Cited
US3752159B1 Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag