Patent US3679949A successfully refreshed from Google Patents.
Patent US5035698A successfully refreshed from Google Patents.
US5035698A
Expired / Lapsed
US
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Arcuate osteotomy blade
Assignee: Schaerer Mayfield USA Inc
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Filing: 1990-04-26
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Granted: 1991-07-30
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Expires: 2010-04-26
Abstract
Abstract A bone saw guide apparatus and method for positioning sequential saw cuts facilitates the cutting of a wedge of bone, in the correction of an angular bone deformity. An arcuate saw blade having a shaft which is parallel to its cutting edge provides greater blade strength and better control of the cut.
Inventors
- 👤 John E. Comparetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/151; A61B17/152
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
55 words
A bone saw blade which is cylindrically curved about an axis of curvature, said blade having bone-cutting teeth along an edge thereof for cutting when said blade is reciprocated in a direction parallel to said axis of curvature, said blade having a shank member attached to it which is parallel to said axis of curvature.
Claim 2
Dependent Claim
55 words
A bone saw blade which is cylindrically curved about an axis of curvature, said blade having bone-cutting teeth along an edge thereof for cutting when said blade is reciprocated in a direction parallel to said axis of curvature, said blade having a shank member attached to it which is parallel to said axis of curvature.
Claim 3
Dependent Claim
14 words
The blade of claim 1 wherein said shank is in line with said teeth.
Claim 4
Dependent Claim
16 words
The blade of claim 1 wherein said edge is straight, parallel to said axis of curvature.
Claim 5
Dependent Claim
30 words
The blade of claim 1 wherein said shank has a non-circular section which prevents said shank from turning with respect to a guide through which said shank extends in use.
Claim 6
Dependent Claim
21 words
The blade of claim 1 wherein said blade has an untoothed portion along said edge, between said teeth and said shank.
Claim 7
Dependent Claim
30 words
The blade of claim 5 further including a limiting stop affixed to said blade between said untoothed portion and said teeth, said stop preventing said teeth from cutting a guide.
Claim 8
Dependent Claim
16 words
The blade of claim 6 wherein said stop is U-shaped and is secured on said edge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |