Patent US6008433A successfully refreshed from Google Patents.
US6008433A
Expired / Lapsed
US
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Osteotomy wedge device, kit and methods for realignment of a varus angulated knee
Assignee: Individual
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Filing: 1998-04-23
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Granted: 1999-12-28
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Expires: 2018-04-23
Abstract
Abstract The invention provides an osteotomy device, and kit and methods for realigning varus angulated knees. The device involves a substantially wedge-shaped body having two intersecting principal surfaces angularly offset. These principal surfaces extend in a direction of a drive axis about a principal plane from an insertion end to a drive surface at a drive end. At least one of the principal surfaces is adapted to engage mechanically a surface adjacent thereto. The drive surface is also adapted to receive a force in the direction of the drive axis toward the insertion end. The kit of the present invention includes substantially such an osteotomy device having cannular opening along its drive axis and an osteotomy pin. A method of the invention involves making a transverse incision partially into the tibia; realigning tibial portions above and below the incision with respect to each other to create a predetermined angle A between opposing faces of the incision, thereby creating a wedge-shaped opening; providing a substantially wedge-shaped body having two angularly offset intersecting principal surfaces, wherein at least one of the surfaces is adapted to engage mechanically a surface adjacent thereto; and driving the body into the opening. Another invention method involves making the incision and realigning the tibia substantially as described above followed by positioning an osteotomy pin within the wedge-shaped opening; and placing the substantially wedge-shaped body having a cannular opening along a drive axis within the wedge-shaped opening such that the pin is positioned in the cannular opening of the body.
Inventors
- 👤 Kevin R. Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:24
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8095; A61F; A61F2/00; A61F2/02; A61F2/28; A61F2/30; A61F2/30721; A61F2/30734; A61B17/8061; A61B17/809; A61B17/84; A61B17/86; A61B2017/00004; A61F2/38; A61F2/46; A61F2/4603; A61F2002/2835; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30108; A61F2002/3011; A61F2002/30138; A61F2002/30153; A61F2002/30156; A61F2002/30199; A61F2002/30224; A61F2002/30261; A61F2002/30266; A61F2002/30273; A61F2002/3028; A61F2002/30316; A61F2002/30329; A61F2002/30331; A61F2002/30354; A61F2002/30535; A61F2002/30576; A61F2002/30578; A61F2002/30593; A61F2/30724; A61F2002/30726; A61F2002/30736; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30784; A61F2002/30785; A61F2002/30904; A61F2002/4677; A61F2210/00; A61F2210/0004; A61F2220/00; A61F2220/0025; A61F2220/0033; A61F2230/00; A61F2230/0002; A61F2230/0017; A61F2230/0019; A61F2230/0023; A61F2230/0063; A61F2230/0069; A61F2230/0082; A61F2230/0086; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00017; A61F2310/00023; A61F2310/00161; A61F2310/00173; A61F2310/00179; A61F2310/00293; A61F2310/00365
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
154 words
An osteotomy device comprising: a substantially wedge-shaped body having two principal surfaces angularly offset by an angle A and intersecting to form a vertex, said principal surfaces extending at least in part about a principal plane from said vertex at an insertion end to a drive surface at a drive end, said principal plane containing a drive axis extending from said vertex toward said drive surface, and said drive surface extending at least in part in a direction transverse to said principal plane, wherein at least one of said principal surfaces is adapted to engage mechanically a surface adjacent thereto, wherein at least one of said principal surfaces is a resorbable material, wherein said drive surface is adapted to receive a force in the direction of said drive axis toward said insertion end, and wherein said substantially wedge-shaped body has a portion defining a cannular opening extending from said vertex along said drive axis.
Claim 2
Dependent Claim
154 words
An osteotomy device comprising: a substantially wedge-shaped body having two principal surfaces angularly offset by an angle A and intersecting to form a vertex, said principal surfaces extending at least in part about a principal plane from said vertex at an insertion end to a drive surface at a drive end, said principal plane containing a drive axis extending from said vertex toward said drive surface, and said drive surface extending at least in part in a direction transverse to said principal plane, wherein at least one of said principal surfaces is adapted to engage mechanically a surface adjacent thereto, wherein at least one of said principal surfaces is a resorbable material, wherein said drive surface is adapted to receive a force in the direction of said drive axis toward said insertion end, and wherein said substantially wedge-shaped body has a portion defining a cannular opening extending from said vertex along said drive axis.
Claim 3
Dependent Claim
23 words
An osteotomy device according to claim 1 wherein at least one of said principal surfaces has a saw-tooth contour along said principal surface.
Claim 4
Dependent Claim
20 words
An osteotomy device according to claim 1 wherein said angle A ranges from about 5 degrees to about 25 degrees.
Claim 5
Dependent Claim
33 words
An osteotomy device according to claim 1 wherein said substantially wedge-shaped body has a length measured from said insertion end to said drive end ranging from about 20 millimeters to about 100 millimeters.
Claim 6
Dependent Claim
21 words
An osteotomy device according to claim 1, wherein said resorbable material is selected from the group consisting of PGA and collagen.
Claim 7
Dependent Claim
27 words
An osteotomy device according to claim 1 wherein said resorbable material has a plurality of pores ranging in size from about 50 micrometers to about 500 micrometers.
Claim 8
Dependent Claim
19 words
An osteotomy device according claim 1 wherein at least one of said principal surfaces comprises a roughened outer surface.
Claim 9
Dependent Claim
23 words
An osteotomy device according to claim 1, wherein said body has a plurality of holes on at least one of said principal surfaces.
Claim 10
Dependent Claim
162 words
A kit for realigning a varus angulated knee that comprises: A. a substantially wedge-shaped body having two principal surfaces angularly offset by an angle A and intersecting to form a vertex, said principal surfaces extending at least in part about a principal plane from said vertex at an insertion end to a drive surface at a drive end, said principal plane containing a drive axis extending from said vertex toward said drive surface, and said drive surface extending at least in part in a direction transverse to said principal plane, wherein at least one of said principal surfaces is adapted to engage mechanically a surface adjacent thereto, wherein said drive surface is adapted to receive a force in the direction of said drive axis toward said insertion end, and wherein said body has a portion defining a cannular opening along said drive axis extending from said vertex in said principal plane, and B. an osteotomy pin for placement within said cannular opening.
Claim 11
Dependent Claim
162 words
A kit for realigning a varus angulated knee that comprises: A. a substantially wedge-shaped body having two principal surfaces angularly offset by an angle A and intersecting to form a vertex, said principal surfaces extending at least in part about a principal plane from said vertex at an insertion end to a drive surface at a drive end, said principal plane containing a drive axis extending from said vertex toward said drive surface, and said drive surface extending at least in part in a direction transverse to said principal plane, wherein at least one of said principal surfaces is adapted to engage mechanically a surface adjacent thereto, wherein said drive surface is adapted to receive a force in the direction of said drive axis toward said insertion end, and wherein said body has a portion defining a cannular opening along said drive axis extending from said vertex in said principal plane, and B. an osteotomy pin for placement within said cannular opening.
Claim 12
Dependent Claim
23 words
An osteotomy kit according to claim 9 wherein at least one of said principal surfaces has a saw-tooth contour along said principal surface.
Claim 13
Dependent Claim
20 words
An osteotomy kit according to claim 9 wherein said angle A ranges from about 5 degrees to about 25 degrees.
Claim 14
Dependent Claim
33 words
An osteotomy kit according to claim 9 wherein said substantially wedge-shaped body has a length measured from said insertion end to said drive end ranging from about 20 millimeters to about 100 millimeters.
Claim 15
Dependent Claim
19 words
An osteotomy kit according to claim 9, wherein at least one of said principal surfaces is a resorbable material.
Claim 16
Dependent Claim
22 words
An osteotomy kit according to claim 13, wherein said resorbable material is selected from the group consisting of PLA, PGA and collagen.
Claim 17
Dependent Claim
27 words
An osteotomy kit according to claim 13 wherein said resorbable material has a plurality of pores ranging in size from about 50 micrometers to about 500 micrometers.
Claim 18
Dependent Claim
18 words
An osteotomy kit according claim 9 wherein at least one of said principal surfaces is a nonporous material.
Claim 19
Dependent Claim
15 words
An osteotomy kit according claim 16 wherein said non-porous material comprises a roughened outer surface.
Claim 20
Dependent Claim
21 words
An osteotomy kit according claim 16 wherein said non-porous material is selected from the group consisting of titanium, graphite and steel.
Claim 21
Dependent Claim
23 words
An osteotomy kit according to claim 16 wherein said body has a plurality of holes on at least one of said principal surfaces.
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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) | 2002-12-27 | 2003-06-28 | 2003-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-27 | 2007-06-28 | 2007-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-27 | 2011-06-28 | 2011-12-28 | $7700.00 | Window Closed / Lapsed |