Patent US4433681A successfully refreshed from Google Patents.
US4433681A
Expired / Lapsed
US
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Bone elongation or shortening method
Assignee: Individual
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Filing: 1981-07-07
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Granted: 1984-02-28
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Expires: 2001-07-07
Abstract
Abstract Bones are cut in parallel curvilinear cuts and are elongated or shortened or angularly adjusted with the curvilinear curse wedged together for strength. Excised parts are used to build up the cut parts. A blade or guide has a ribbon shape with opposite flanges, neck, pre-neck and loop regions. One blade or guide has additional slide blade or guides to perform double cuts.
Inventors
- 👤 John E. Comparetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1604
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
A corrective surgical procedure which corrects or improves upon an imperfection in a deformed living long bone which procedure comprises the steps of: (a) Surgically exposing thhe deformed bone at an operative site auspicious for corrective surgery, (b) cutting said deformed bone so as to sever same and thereby form a loosely interlocking dove-tail joint in adjacent osseous tissue of said long bone at said site, (c) correctively reorienting the relative position of the interlocked adjacent parts of said surgically severed long bone within the limits of said loosely interlocking dovetail-like joint, (d) stabilizing said severed long bone in said reoriented corrective position, (e) closing said operative site in a manner conducive to tissue regrowth, (f) wherein said step of severing further includes producing multiple curvalinear cuts which each have a cross section substantially in the shape of the capital Greek letter omega (Ω) whereby said interlocking dovetail-like joint is formed by said curvilinear cuts.
Claim 2
Dependent Claim
155 words
A corrective surgical procedure which corrects or improves upon an imperfection in a deformed living long bone which procedure comprises the steps of: (a) Surgically exposing thhe deformed bone at an operative site auspicious for corrective surgery, (b) cutting said deformed bone so as to sever same and thereby form a loosely interlocking dove-tail joint in adjacent osseous tissue of said long bone at said site, (c) correctively reorienting the relative position of the interlocked adjacent parts of said surgically severed long bone within the limits of said loosely interlocking dovetail-like joint, (d) stabilizing said severed long bone in said reoriented corrective position, (e) closing said operative site in a manner conducive to tissue regrowth, (f) wherein said step of severing further includes producing multiple curvalinear cuts which each have a cross section substantially in the shape of the capital Greek letter omega (Ω) whereby said interlocking dovetail-like joint is formed by said curvilinear cuts.
Claim 3
Dependent Claim
16 words
The procedure of claim 1 wherein the step of reorienting comprises relative elongation of said bone.
Claim 4
Dependent Claim
18 words
The procedure of claim 1 wherein the step of reorienting comprises relative axial rotation of severed bone sections.
Claim 5
Dependent Claim
15 words
The procedure of claim 1 wherein the reorienting step comprises relative shortening of said bone.
Claim 6
Dependent Claim
72 words
The procedure of any one of claims 1, 2, 3, or 4 wherein said step of stabilizing further includes recovering bone tissue removed from said bone during the step of making multiple transverse curvilinear cuts and inserting said recovered tissue into any voids which persist in the loosely interlocking dovetail-like joint after said adjacent bone parts have been correctively reoriented so as to promote faster healing of the surgically altered long bone.
Claim 7
Dependent Claim
35 words
The procedure of claim 1 wherein the step of cutting is performed using an osteotome which has been formed to have a cross section substantially in the shape of the capital greek letter omega (Ω).
Claim 8
Dependent Claim
20 words
The procedure of claim 1 wherein the step of cutting is performed using laser means for producing said curvalinear cuts.
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) | 1987-02-27 | 1987-08-29 | 1988-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-27 | 1991-08-29 | 1992-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-27 | 1995-08-29 | 1996-02-28 | $7700.00 | Window Closed / Lapsed |