Patent JPS575187A successfully refreshed from Google Patents.
US6823871B2
Expired / Lapsed
US
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Allograft bone or synthetic wedges for osteotomy
Assignee: Arthrex Inc
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Filing: 2001-06-01
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Granted: 2004-11-30
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Expires: 2021-06-01
Abstract
Abstract Methods of performing opening wedge osteotomies are disclosed in which healing of the osteotomy defect is enhanced by packing the opening with pre-packaged, wedge-shaped bone grafts. The bone wedges are provided in sets of three: two larger outer pieces and a smaller inner piece that fits behind a bone plate. The wedge pieces are made of allograft bone or synthetic bone material. Outer surfaces of the two larger pieces preferably are cortical bone or cortical bone-like material.
Inventors
- 👤 Reinhold Schmieding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:54
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1714; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0805; A61B17/1739; A61B17/1764
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
127 words
A method of correcting a deformity by performing an osteotomy in a bone at an osteotomy site using a bone plate, the method comprising the steps of: (a) resecting the bone from a first side of the bone to a second side of the bone so as to leave a bony hinge on the second side; (b) opening the resection to a height at which the deformity is corrected using an opening tool; (c) placing the bone plate in a location such that the bone plate spans the open resection; (d) removing the opening tool; and (e) packing the open resection with at least two individual pre-formed wedge shaped sections of material by inserting at least two individual, unconnected pre-formed wedge shaped sections into the open resection.
Claim 2
Independent Claim
127 words
A method of correcting a deformity by performing an osteotomy in a bone at an osteotomy site using a bone plate, the method comprising the steps of: (a) resecting the bone from a first side of the bone to a second side of the bone so as to leave a bony hinge on the second side; (b) opening the resection to a height at which the deformity is corrected using an opening tool; (c) placing the bone plate in a location such that the bone plate spans the open resection; (d) removing the opening tool; and (e) packing the open resection with at least two individual pre-formed wedge shaped sections of material by inserting at least two individual, unconnected pre-formed wedge shaped sections into the open resection.
Claim 3
Dependent Claim
51 words
The method of claim 1 , wherein the step of packing the resection includes the steps of inserting a smaller inner section of wedge shaped material behind the bone plate, and inserting two larger outer sections of wedge shaped material on either side of the smaller wedge section within the resection.
Claim 4
Dependent Claim
21 words
The method of claim 1 , wherein the two wedge shaped sections of material have Outer surfaces formed of cortical bone.
Claim 5
Dependent Claim
23 words
The method of claim 2 , wherein the step of inserting the smaller inner section takes place prior to placing the bone plate.
Claim 6
Dependent Claim
12 words
The method of claim 1 , wherein the material comprises allograft bone.
Claim 7
Dependent Claim
12 words
The method of claim 1 , wherein the material comprises synthetic bone.
Claim 8
Dependent Claim
21 words
The method of claim 6 , wherein the synthetic bone comprises a biodegradable polylactide combined with a hydroxyapatite or tricalcium phosphate.
Claim 9
Dependent Claim
39 words
The method of claim 1 , further comprising the step after opening the resection of removing a removable handle from the opening tool to provide access for the bone plate prior to the step of placing the bone plate.
Claim 10
Independent Claim
134 words
A method of correcting a deformity by performing an osteotomy in a bone at an osteotomy site using a bone plate, the method comprising the steps of: (a) resecting the bone from a first side of the bone to a second side of the bone so as to leave a bony hinge on the second side; (b) inserting an opening tool into the resection; (c) opening the resection using the opening tool to a height at which the deformity is corrected; (d) placing the bone plate in a location such that the bone plate spans the open resection; (e) removing the opening tool; and (f) packing the resection with at least two individual pre-formed wedge shaped sections of material by inserting at least two individual pre-formed, unconnected wedge shaped sections into the open resection.
Claim 11
Independent Claim
134 words
A method of correcting a deformity by performing an osteotomy in a bone at an osteotomy site using a bone plate, the method comprising the steps of: (a) resecting the bone from a first side of the bone to a second side of the bone so as to leave a bony hinge on the second side; (b) inserting an opening tool into the resection; (c) opening the resection using the opening tool to a height at which the deformity is corrected; (d) placing the bone plate in a location such that the bone plate spans the open resection; (e) removing the opening tool; and (f) packing the resection with at least two individual pre-formed wedge shaped sections of material by inserting at least two individual pre-formed, unconnected wedge shaped sections into the open resection.
Claim 12
Dependent Claim
51 words
The method of claim 9 , wherein the step of packing the resection includes the steps of inserting a smaller inner section of wedge shaped material behind the bone plate, and inserting two larger outer sections of wedge shaped material on either side of the smaller wedge section within the resection.
Claim 13
Dependent Claim
21 words
The method of claim 10 , wherein the two wedge shaped sections of material have outer surfaces formed of cortical bone.
Claim 14
Dependent Claim
23 words
The method of claim 10 , wherein the step of inserting the smaller inner section takes place prior to placing the bone plate.
Claim 15
Dependent Claim
12 words
The method of claim 9 , wherein the material comprises allograft bone.
Claim 16
Dependent Claim
12 words
The method of claim 9 , wherein the material comprises synthetic bone.
Claim 17
Dependent Claim
21 words
The method of claim 14 , wherein the synthetic bone comprises a biodegradable polylactide combined with a hydroxyapatite or tricalcium phosphate.
Claim 18
Dependent Claim
30 words
The method of claim 9 , further comprising the step of removing a removable handle from the opening tool after opening the resection and prior to placing the bone plate.
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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) | 2007-11-30 | 2008-05-31 | 2008-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-11-30 | 2012-05-31 | 2012-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-11-30 | 2016-05-31 | 2016-11-30 | $7700.00 | Window Closed / Lapsed |