Patent US3669133A successfully refreshed from Google Patents.
Patent US4896661A successfully refreshed from Google Patents.
US4896661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi purpose orthopedic ratcheting forceps
Assignee: Howmedica Osteonics Corp
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Filing: 1988-02-05
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Granted: 1990-01-30
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Expires: 2008-02-05
Abstract
Abstract A forceps for use in orthopedic surgical procedures having readily interchangeable tip elements and a reversible ratchet mechanism, for controlling the tip elements. A variety of tips for compression and distraction are provided. The ratchet mechanism permits controlled increments of force to be applied to the tips.
Inventors
- 👤 Roy Bogert
- 👤 Michael W. Chapman
- 👤 Charles C. Edwards
- 👤 Dana C. Mears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:53
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/28; A61B17/2812; A61B17/56; A61B17/58; A61B17/88; A61B17/8866; A61B17/68; A61B17/80; A61B17/8004; A61B17/2833; A61B2017/2837
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
A forceps device comprising: (a) a first elongate arm having a hand grip portion at a proximal end; (b) a second elongate arm having a hand grip portion at a proximal end; (c) said first and second arms being joined at a pivot point to form opposing co-planar jaw portions at their distal ends; (d) said jaw portions being adapted to removably secure interchangeable tip portions; (e) said first arm having a ratchet toothed member secured thereto intermediate said pivot point and said hand grip portion; (f) said second arm having a multiposition pawl mechanism positioned to engage said ratchet toothed member such that in one position of said pawl, said arms pivot to ratchet open said jaw portions, in a second position of said pawl, said arms pivot to ratchet closed said jaw portions and in a third position, said pawl is disengaged from said ratchet toothed member, whereby suitable tip portions are ratcheted to compress or distract a work piece.
Claim 2
Dependent Claim
162 words
A forceps device comprising: (a) a first elongate arm having a hand grip portion at a proximal end; (b) a second elongate arm having a hand grip portion at a proximal end; (c) said first and second arms being joined at a pivot point to form opposing co-planar jaw portions at their distal ends; (d) said jaw portions being adapted to removably secure interchangeable tip portions; (e) said first arm having a ratchet toothed member secured thereto intermediate said pivot point and said hand grip portion; (f) said second arm having a multiposition pawl mechanism positioned to engage said ratchet toothed member such that in one position of said pawl, said arms pivot to ratchet open said jaw portions, in a second position of said pawl, said arms pivot to ratchet closed said jaw portions and in a third position, said pawl is disengaged from said ratchet toothed member, whereby suitable tip portions are ratcheted to compress or distract a work piece.
Claim 3
Dependent Claim
43 words
The forceps device of claim 1 wherein said hand grip portions are shaped to form rounded ovoid openings with the widest portion at the proximal end and further comprise curved finger rest portions at both the distal and proximal ends of said openings.
Claim 4
Dependent Claim
27 words
The forceps device of claim 1 wherein said jaw portions removably secure said tip portions by way of a spring loaded sleeve, ball detent and groove mechanism.
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) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |