US5224946A
Expired / Lapsed
US
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Bone anchor and method of anchoring a suture to a bone
Assignee: Smith and Nephew Inc
•
Filing: 1991-04-05
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Granted: 1993-07-06
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Expires: 2011-04-05
Abstract
Abstract A bone anchor (10) for securing a suture to a bone (38). The bone anchor (10) has a tip (16) at its distal end (18) and at least one resilient wall (27) extending to a trailing end (20) of the body (12) of the anchor. The wall (27) has a ridge (14), or barb, formed on an outer surface. The ridge (14) defines an edge (34) that digs into a hole (36) in the bone (38) in which it is positioned. A strand of suturing thread (22) extends through a suture receiving opening (24) in the tip (16) of the anchor. The method of the present invention employs the suture anchor (10) and includes the steps of forming a hole (36) in a bone (38) and inserting the suture anchor (10) to a desired depth in the hole (36) in the bone (38) using an inserter device (100). Suturing thread ( 22) extends from the suture receiving opening (24) in the tip and along the length of the walls (27,28) out of the hole (36) in the bone (38). An anchor spreader (130) is used to firmly seat the anchor (10) in the hole (36). The suture (22) is pulled at the same time to help seat the barbs 14 on the anchor (10) into the bone (38).
Inventors
- 👤 John O. Hayhurst
- 👤 Alan A. Small
- 👤 Jeffrey C. Cerier
- 👤 Paul DiCarlo
- 👤 James W. Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:15
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/08; A61F2/0811; A61B; A61B17/00; A61B17/11; A61B17/115; A61B17/04; A61B17/0401; A61B2017/0409; A61B2017/0412; A61B2017/0414; A61B2017/0438; A61B2017/0446; A61B2017/0458; A61B2017/0459; A61B2017/0496; A61B17/06; A61B17/06114; A61B2017/06142; A61B90/00; A61B90/06; A61B2090/062; A61F2002/0876; A61F2002/0888
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
196 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, said tip including a hole through which a length of suturing thread extends, at least one resilient wall forming a trailing portion of the suture anchor, said wall having a barb formed on an outer surface which faces a wall of the hole in the bone, said barb defining an edge which is adapted to engage the wall of the hole in the bone, comprising the steps of: forming a hole in the bone; inserting said suture anchor to a desired depth in the hole in the bone with the tip being inserted first, the trailing portion following said tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; pulling on the portion of the suturing thread extending out of the hole and thereby urging the barb into firmer engagement with the wall of the hole in the bone; and urging said resilient wall of said body against the bone in the hole by a spreader member.
Claim 2
Independent Claim
196 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, said tip including a hole through which a length of suturing thread extends, at least one resilient wall forming a trailing portion of the suture anchor, said wall having a barb formed on an outer surface which faces a wall of the hole in the bone, said barb defining an edge which is adapted to engage the wall of the hole in the bone, comprising the steps of: forming a hole in the bone; inserting said suture anchor to a desired depth in the hole in the bone with the tip being inserted first, the trailing portion following said tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; pulling on the portion of the suturing thread extending out of the hole and thereby urging the barb into firmer engagement with the wall of the hole in the bone; and urging said resilient wall of said body against the bone in the hole by a spreader member.
Claim 3
Independent Claim
128 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, said tip including a hole through which a length of suturing thread extends, at least one resilient wall forming a trailing portion of the suture anchor, comprising the steps of: forming a hole in the bone; inserting said suture anchor to a desired depth in the hole in the bone with the tip being inserted first, the trailing portion following said tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; and urging said resilient wall of said body against the bone in the hole by a spreader member.
Claim 4
Independent Claim
128 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, said tip including a hole through which a length of suturing thread extends, at least one resilient wall forming a trailing portion of the suture anchor, comprising the steps of: forming a hole in the bone; inserting said suture anchor to a desired depth in the hole in the bone with the tip being inserted first, the trailing portion following said tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; and urging said resilient wall of said body against the bone in the hole by a spreader member.
Claim 5
Independent Claim
200 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, the tip including a hole through which a length of suturing thread extends, at least one wall forming a trailing portion of the body, the wall having a barb defining an edge which is adapted to engage the wall of the hole in the bone, comprising: forming a hole in the bone; predetermining a desired depth of insertion by selecting an inserter device having a handle and a depth member, spaced distal to the handle, for limiting insertion to the desired depth of insertion of the suture anchor in the hole; inserting the suture anchor with the inserter device to the desired depth in the hole in the bone with the tip being inserted first, the trailing portion following the tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; and pulling on the portion of the suturing thread extending out of the hole and thereby urging the barb into firmer engagement with the wall of the hole in the bone.
Claim 6
Independent Claim
200 words
A method of anchoring a suture in a bone with a suture anchor having a tip on a leading end, the tip including a hole through which a length of suturing thread extends, at least one wall forming a trailing portion of the body, the wall having a barb defining an edge which is adapted to engage the wall of the hole in the bone, comprising: forming a hole in the bone; predetermining a desired depth of insertion by selecting an inserter device having a handle and a depth member, spaced distal to the handle, for limiting insertion to the desired depth of insertion of the suture anchor in the hole; inserting the suture anchor with the inserter device to the desired depth in the hole in the bone with the tip being inserted first, the trailing portion following the tip, and the suturing thread extending from the hole in the tip and then along the length of said trailing portion and out of the hole in the bone; and pulling on the portion of the suturing thread extending out of the hole and thereby urging the barb into firmer engagement with the wall of the hole in the bone.
Claim 7
Dependent Claim
41 words
The method of claim 3 in which the depth member is removable from the remainder of the insertion device and further including mounting the removable depth member on the inserter device after the suture anchor is positioned on the inserter device.
Claim 8
Dependent Claim
95 words
A bone anchor for securing a suture to a bore hole in a bone in combination with a pusher member and a depth member, the combination comprising: a bone anchor including an elongated body having a tip at a distal end of the body and means for carrying a suture; a pusher member having a handle and a distal tip engagable with said body; and a depth member being removably disposed on said pusher member distal to the handle to control the depth to which said body is inserted within the hole in the bone.
Claim 9
Dependent Claim
95 words
A bone anchor for securing a suture to a bore hole in a bone in combination with a pusher member and a depth member, the combination comprising: a bone anchor including an elongated body having a tip at a distal end of the body and means for carrying a suture; a pusher member having a handle and a distal tip engagable with said body; and a depth member being removably disposed on said pusher member distal to the handle to control the depth to which said body is inserted within the hole in the bone.
Claim 10
Dependent Claim
49 words
The combination of claim 5 in which the depth member is a hollow sleeve having a proximal end for engaging a stop member carried by the inserter device, and having a distal end with an end face defining a distal opening through which the suture anchor protrudes after assembly.
Claim 11
Dependent Claim
11 words
The combination of claim 6 in which the sleeve is cylindrical.
Claim 12
Dependent Claim
38 words
The combination of claim 5 in which the bone anchor further includes at least one ridge extending outwardly from the exterior of the body and defining an edge adapted to lodge in the wall of the bore hole.
Claim 13
Dependent Claim
70 words
The combination of claim 5 in which said bone anchor includes at least two resilient walls which define between them first and second slots, said walls being compressible toward each other when the bone anchor is inserted into the hole in the bone, said first and second slots extending lengthwise at spaced locations on the body, and said means for carrying including a suture receiving opening extending through the tip.
Claim 14
Dependent Claim
70 words
The combination of claim 5 in which said bone anchor includes at least two resilient walls which define between them first and second slots, said walls being compressible toward each other when the bone anchor is inserted into the hole in the bone, said first and second slots extending lengthwise at spaced locations on the body, and said means for carrying including a suture receiving opening extending through the tip.
Claim 15
Dependent Claim
38 words
The combination of claim 10 in which the bone anchor further includes at least one ridge extending outwardly from the exterior of the body and defining an edge adapted to lodge in the wall of the bore hole.
Claim 16
Independent Claim
142 words
A method for anchoring a suture and suture anchor within a bone, wherein the suture anchor has a tip through which a hole is formed and through which hole the suture extends, the suture anchor also defining a barb that is adapted to engage the wall of the hole in the bone, comprising: forming a hole in the bone; selecting an inserter device having a shaft and a depth member mounted to the shaft, the shaft being selectively movable relative to the depth member; positioning the suture anchor on the shaft; inserting the suture anchor, carrying the suture through the hole in its tip, into the hole in the bone by moving the shaft into the hole; and limiting the depth of insertion of the anchor member by limiting the movement of the shaft by contacting the depth member against the bone.
Claim 17
Independent Claim
142 words
A method for anchoring a suture and suture anchor within a bone, wherein the suture anchor has a tip through which a hole is formed and through which hole the suture extends, the suture anchor also defining a barb that is adapted to engage the wall of the hole in the bone, comprising: forming a hole in the bone; selecting an inserter device having a shaft and a depth member mounted to the shaft, the shaft being selectively movable relative to the depth member; positioning the suture anchor on the shaft; inserting the suture anchor, carrying the suture through the hole in its tip, into the hole in the bone by moving the shaft into the hole; and limiting the depth of insertion of the anchor member by limiting the movement of the shaft by contacting the depth member against 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) | 1996-07-05 | 1997-01-04 | 1997-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-05 | 2001-01-04 | 2001-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-05 | 2005-01-04 | 2005-07-06 | $7700.00 | Window Closed / Lapsed |