Patent US3840003A successfully refreshed from Google Patents.
US3840003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forceps assembly for removing cellular tissue from the body cavities
Assignee: Olympus Corp
•
Filing: 1972-11-21
•
Granted: 1974-10-08
•
Expires: 1992-11-21
Abstract
Abstract A forceps assembly has a forceps holder attached to the end of a flexible tube and a pair of scissors opened and closed by a wire running through said flexible tube, at least one of the opposing blades of the scissors having a clamp member for clamping a piece of cellular tissue to be scissored between the clamp member and the other of the scissor blades.
Inventors
- 👤 O Komiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:14
CPC Classifications
A; A61; A61B; A61B10/00; A61B10/02; A61B17/00; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
A forceps assembly attached to one end of a flexible tube with a wire running therethrough for removing cellular tissue from body cavities, comprising: a forceps holder attached to the end of said flexible tube; a pair of scissors held by said forceps holder, having a pair of cutting blades which are opened and closed respectively by push and pull of said wire, said blades having respective inner surfaces cooperating to serve as said scissors, and respective outer surfaces; and means for clamping severed cellular tissue including at least one clamp member protruding from the back of one of said blades, said clamp member being cantilevered and extending in a direction toward the other of said blades and adjacent the outer surface of said other blade and cooperating with the outer surface of said other blade so as to clamp a piece of cellular tissue cut by said pair of scissors between said cantilevered clamp member and the outer surface of said other blade.
Claim 2
Dependent Claim
164 words
A forceps assembly attached to one end of a flexible tube with a wire running therethrough for removing cellular tissue from body cavities, comprising: a forceps holder attached to the end of said flexible tube; a pair of scissors held by said forceps holder, having a pair of cutting blades which are opened and closed respectively by push and pull of said wire, said blades having respective inner surfaces cooperating to serve as said scissors, and respective outer surfaces; and means for clamping severed cellular tissue including at least one clamp member protruding from the back of one of said blades, said clamp member being cantilevered and extending in a direction toward the other of said blades and adjacent the outer surface of said other blade and cooperating with the outer surface of said other blade so as to clamp a piece of cellular tissue cut by said pair of scissors between said cantilevered clamp member and the outer surface of said other blade.
Claim 3
Dependent Claim
27 words
A forceps assembly according to claim 1 wherein said clamp member has a window therein for lessening the pressure exerted on the clamped piece of cellular tissue.
Claim 4
Dependent Claim
43 words
A forceps assembly according to claim 1 comprising a pair of link members respectively pivotally connected to said pair of blades, said link members being coupled to said wire for respectively opening and closing said blades by push and pull of said wire.
Claim 5
Dependent Claim
55 words
A forceps assembly according to claim 1 comprising at least one support plate fixedly connected to said forceps holder, said scissor blades being pivotally connected to said at least one support plate; and a pair of link members respectively coupled to said pair of scissor blades, said link members being pivotally coupled to said wire.
Claim 6
Dependent Claim
19 words
A forceps assembly according to claim 1 wherein said at least one clamp member has a generally L-shaped cross-section.
Claim 7
Dependent Claim
31 words
A forceps assembly according to claim 1 wherein the combination of said at least one clamp member and said one of said blades has a portion having a generally U-shaped cross-section.
References Cited (Backward Citations)
US487068A
Cited
US2434550A
Cited
US2955592A
Cited
US2994321A
Cited
US3391690A
Cited
US3404677A
Cited
US3353531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |