Patent US5156616A successfully refreshed from Google Patents.
US5156616A
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US
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Apparatus and method for suture attachment
Assignee: Individual
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Filing: 1992-02-10
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Granted: 1992-10-20
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Expires: 2012-02-10
Abstract
Abstract A cannulated bone screw is illustrated that retains a knotted suture and which is anchored to bone. The cannulated bone screw comprises a biocompatible body having a proximal end and a distal end, and the body includes exterior screw threads for inserting and retaining the body into the bone. The body is cylindrical and has a passageway that extends axially therethrough. The passageway includes a central portion, a distal portion and a proximal portion. The central portion has a diameter less then the distal portion and is sized to receive a suture thread therethrough. The distal portion is sized to receive a suture thread knot. The suture thread knot received within the distal portion is retained by the central portion, which is sufficiently small to prevent the knot from being drawn therethrough. The proximal portion includes a hexagonal cavity for cooperating with an external drive tool for rotating the body and thereby driving the body into the bone.
Inventors
- 👤 Bruce F. Meadows
- 👤 William S. Ogden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/04; A61B17/0401; A61B17/56; A61B17/58; A61B17/68; A61B17/84; A61B17/86; A61B17/864; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61B17/88; A61B17/8875; A61B2017/0414; A61B2017/044; A61B2017/0445; A61B2017/0446; A61B2017/0458; A61F2002/0876; A61F2002/0888; Y; Y10; Y10S; Y10S606/00; Y10S606/916
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
141 words
A cannulated bone screw useful for anchoring a suture thread to bone which comprises: a biocompatible body having a proximal end and a distal end, said body including exterior screw threads for inserting and retaining said body into the bone, said body defining a passageway extending therethrough, the passageway including a central portion and a distal portion, the central portion being sized to receive a suture thread therethrough, the distal portion being sized to receive a suture thread knot, the central portion being sized smaller than the distal portion, the central portion being sufficiently large as to receive a suture thread therethrough but sufficiently small as to prevent a suture thread knot from being drawn therethrough, said body further defining means for cooperating with an external drive tool for rotating said body and for thereby driving said body into the bone.
Claim 2
Dependent Claim
141 words
A cannulated bone screw useful for anchoring a suture thread to bone which comprises: a biocompatible body having a proximal end and a distal end, said body including exterior screw threads for inserting and retaining said body into the bone, said body defining a passageway extending therethrough, the passageway including a central portion and a distal portion, the central portion being sized to receive a suture thread therethrough, the distal portion being sized to receive a suture thread knot, the central portion being sized smaller than the distal portion, the central portion being sufficiently large as to receive a suture thread therethrough but sufficiently small as to prevent a suture thread knot from being drawn therethrough, said body further defining means for cooperating with an external drive tool for rotating said body and for thereby driving said body into the bone.
Claim 3
Dependent Claim
15 words
The bone screw of claim 1 in which said body defines self-tapping exterior screw threads.
Claim 4
Dependent Claim
25 words
The bone screw of claim 1 in which said body is cylindrical and has a central axis, and in which the passageway extends axially therethrough.
Claim 5
Dependent Claim
15 words
The bone screw of claim 3 in which said body defines self-tapping exterior screw threads.
Claim 6
Dependent Claim
28 words
The bone screw of claim 1 in which said means for cooperating with an external drive tool comprises a proximal cavity configured to receive an external drive tool.
Claim 7
Dependent Claim
33 words
The bone screw of claim 5 in which the proximal cavity is sized larger than the central portion of the passageway and has a hexagonal cross-section for cooperation with an external hex driver.
Claim 8
Dependent Claim
15 words
The bone screw of claim 5 in which said body defines self-tapping exterior screw threads.
Claim 9
Dependent Claim
25 words
The bone screw of claim 5 in which said body is cylindrical and has a central axis, and in which the passageway extends axially therethrough.
Claim 10
Dependent Claim
15 words
The bone screw of claim 8 in which said body defines self-tapping exterior screw threads.
Claim 11
Dependent Claim
33 words
The bone screw of claim 9 in which the proximal cavity is sized larger than the central portion of the passageway and has a hexagonal cross-section for cooperation with an external hex driver.
Claim 12
Independent Claim
231 words
A method of attaching suture thread to bone which comprises the steps of: a. providing a bone screw comprising a biocompatible body having a proximal end and a distal end, said body including exterior screw threads for inserting and retaining said body into the bone, said body defining a passageway extending therethrough, the passageway including a central portion and a distal portion, the central portion being sized to receive a suture thread therethrough, the distal portion being sized to receive a suture thread knot, the central portion being sized smaller than the distal portion, the central portion being sufficiently large as to receive a suture thread therethrough but sufficiently small as to prevent a suture thread knot from being drawn therethrough, said body further defining means for cooperating with an external drive tool for rotating said body and for thereby driving said body into the bone; b. passing suture thread through the passageway of the body of said bone screw to extend from the distal end; c. tying a knot in the suture thread extending from the distal end of the passageway; d. withdrawing the suture thread from the proximal end of said bone screw and thereby drawing the knot into the distal section until it abuts the central portion having a smaller cross-sectional area, thereby blocking the passage of the knot; and e. inserting said bone screw into the bone.
Claim 13
Independent Claim
231 words
A method of attaching suture thread to bone which comprises the steps of: a. providing a bone screw comprising a biocompatible body having a proximal end and a distal end, said body including exterior screw threads for inserting and retaining said body into the bone, said body defining a passageway extending therethrough, the passageway including a central portion and a distal portion, the central portion being sized to receive a suture thread therethrough, the distal portion being sized to receive a suture thread knot, the central portion being sized smaller than the distal portion, the central portion being sufficiently large as to receive a suture thread therethrough but sufficiently small as to prevent a suture thread knot from being drawn therethrough, said body further defining means for cooperating with an external drive tool for rotating said body and for thereby driving said body into the bone; b. passing suture thread through the passageway of the body of said bone screw to extend from the distal end; c. tying a knot in the suture thread extending from the distal end of the passageway; d. withdrawing the suture thread from the proximal end of said bone screw and thereby drawing the knot into the distal section until it abuts the central portion having a smaller cross-sectional area, thereby blocking the passage of the knot; and e. inserting said bone screw into the bone.
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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) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |