US3903892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forceps means for removing cellular tissue from the body cavities
Assignee: Olympus Corp
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Filing: 1973-05-17
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Granted: 1975-09-09
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Expires: 1993-05-17
Abstract
Abstract A surgical instrument means for removing cellular tissue from the body cavities arranged to shape a loop easily by using a wire having at least two bent portions formed by plastic deformation.
Inventors
- 👤 Osamu Komiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:56
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/32056; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00098; A61B1/00163; A61B1/00174; A61B1/00177; A61B17/22; A61B17/221; A61B17/24; A61B17/26; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1492; A61B2017/2212; A61B2018/1405; A61B2018/1407; A61B2018/141; A61B90/00; A61B90/30; A61B2090/306
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
A surgical instrument comprising a tube with a stepped portion in the inside at one end of said tube, a slider slidably arranged in said tube and having a center hole, a wire made of a resilient material having at least a bent portion, one end of said wire being fixed to said slider and the other end of said wire being passed through the center hole of said slider and being fixed to an operating ring provided at an end of said tube opposite said one end, and a stopper with an outer diameter larger than the diameter of the center hole of said slider attached to said wire.
Claim 2
Dependent Claim
110 words
A surgical instrument comprising a tube with a stepped portion in the inside at one end of said tube, a slider slidably arranged in said tube and having a center hole, a wire made of a resilient material having at least a bent portion, one end of said wire being fixed to said slider and the other end of said wire being passed through the center hole of said slider and being fixed to an operating ring provided at an end of said tube opposite said one end, and a stopper with an outer diameter larger than the diameter of the center hole of said slider attached to said wire.
Claim 3
Dependent Claim
47 words
A surgical instrument according to the claim 1, further comprising a spring arranged in said tube at a position on the operating ring side of said slider and arranged to bias said slider against said stepped portion in the inside at said one end of said tube.
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) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |