Patent US5941878A successfully refreshed from Google Patents.
US5941878A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Implantable, surgical buttressing device
Assignee: Individual
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Filing: 1998-01-09
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Granted: 1999-08-24
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Expires: 2018-01-09
Abstract
Abstract An implantable surgical device for fixation of one or more bone fragments or grafts to an adjacent stable bone. The device is formed by a U-shaped wire having a U bend portion and two legs extending from the U bend portion, the device being secured near the U bend portion by a fixation device including a washer and a bone screw to a stable bone. The distal ends of the legs are formed with pointed projections or with bends providing projections extending out of the plane of the U-shaped wire to penetrate the surface of the bone fragment or graft and provide translational constraint of the fragment or graft.
Inventors
- 👤 Robert J. Medoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/809
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
88 words
An implantable surgical buttressing means for fixation of one or more bone fragments or grafts to an adjacent stable bone, said buttressing means comprising a U-shaped wire including a U portion and two legs extending from said U portion, said buttressing means being securable at one end thereof, by a fixation means, to a stable bone, at least one of said legs of said U-shaped wire including projection means for penetrating the surface of the bone fragment or graft to provide translational constraint of the fragment or graft.
Claim 2
Dependent Claim
88 words
An implantable surgical buttressing means for fixation of one or more bone fragments or grafts to an adjacent stable bone, said buttressing means comprising a U-shaped wire including a U portion and two legs extending from said U portion, said buttressing means being securable at one end thereof, by a fixation means, to a stable bone, at least one of said legs of said U-shaped wire including projection means for penetrating the surface of the bone fragment or graft to provide translational constraint of the fragment or graft.
Claim 3
Dependent Claim
26 words
A surgical buttressing means as claimed in claim 1, wherein said projection means is formed by a bend in said at least one of said legs.
Claim 4
Dependent Claim
27 words
A surgical buttressing means as claimed in claim 2, wherein said U-shaped wire is disposed substantially in a plane and said projection means extends from said plane.
Claim 5
Dependent Claim
24 words
A surgical buttressing means as claimed in claim 3, wherein both of said legs include a respective said bend and corresponding said projection means.
Claim 6
Dependent Claim
34 words
A surgical buttressing means as claimed in claim 1, wherein said projection means comprises a pointed projection protruding from a distal end of said at least one of said legs at right angles thereto.
Claim 7
Dependent Claim
28 words
A surgical buttressing means as claimed in claim 5, wherein one said pointed projection is provided at the distal end of each said leg of said U-shaped wire.
Claim 8
Dependent Claim
27 words
A surgical buttressing means as claimed in claim 1, wherein said U-shaped wire is disposed substantially in a plane and said projection means extends from said plane.
Claim 9
Dependent Claim
48 words
A surgical buttressing means as claimed in claim 1, wherein said fixation means comprises a bone screw which is insertable into the stable bone to apply a rearwardly directed force on said at least one leg and produce a contraction force across a fracture site or bone graft.
Claim 10
Dependent Claim
79 words
A surgical buttressing means as claimed in claim 8, wherein said projection means is formed by a bend in each of said legs to provide projections extending out from a plane containing the U-shaped wire, said projections being adapted to provide the translational constraint of the fragment or graft, the bends in the legs enabling the buttressing means to apply a rearwardly directed force on said legs for producing a contraction force across a fracture site or bone graft.
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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) | 2002-08-23 | 2003-02-22 | 2003-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-23 | 2007-02-22 | 2007-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-23 | 2011-02-22 | 2011-08-24 | $7700.00 | Window Closed / Lapsed |