Transosseous suture anchor

• US 10,226,243 B2
• Filed: 07/29/2016
• Issued: 03/12/2019
• Est. Priority Date: 08/04/2015
• Status: Active Grant

• Current Assignee: Crossroads Extremity Systems, Llc (Johnson & Johnson)
• Original Assignee: kator, LLC
• Inventors: Fallin, T. Wade, Helgerson, Joel
• Primary Examiner(s): Nguyen, Tuan V
• Application Number:
  US15/224,273
• Publication Number:
  US 20170035409A1
• Time in Patent Office: 956 Days
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0485 Devices or means, e.g. loops, for capturing the suture thread and threading it through an opening of a suturing instrument or needle eyelet
• CPC Class Codes: A61B 17/06133 of parallelepipedal shape, e.g. made of rectangular or slightly oval panels
• CPC Class Codes: A61B 2017/0053 Loading magazines or sutures into applying tools
• CPC Class Codes: A61B 2017/0403 Dowels other bone dowels A61B17/68; dowels for connecting prosthetic parts A61F2002/30433
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening lateral eyelet for attaching suture to needle A61B2017/06019
• CPC Class Codes: A61B 2017/0424 the separate member staying in the anchor after placement
• CPC Class Codes: A61B 2017/0425 the anchor or the separate member comprising threads, e.g. a set screw in the anchor
• CPC Class Codes: A61B 2017/045 snug fit within the anchor
• CPC Class Codes: A61B 2017/0458 Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 2090/0807 Indication means
• CPC Class Codes: A61B 90/92 coded with colour
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0835 with deformation of anchor parts, e.g. expansion of dowel by set screw
• CPC Class Codes: A61F 2002/0882 Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone

Abstract

A knotless suture anchor may include an anchor body with a proximal end, a distal end, an interior longitudinal passageway, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end. A first suture portion extends within the longitudinal passageway between the proximal opening and the distal opening, a second suture portion is contiguous to the first portion and extending out of the anchor body, a third suture portion is contiguous to the second portion and extends within the longitudinal passageway proximally to distally, and a fourth suture portion is contiguous to the third portion, extending along the exterior surface distally to proximally. A proximal member may be joined to the anchor body by a frangible connection and may have a proximal member axial passage containing an interference member coaxially aligned with the longitudinal passageway.

Claims

1. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end;

a first portion of a suture extending within the longitudinal passageway between the proximal opening and the distal opening, a second portion of the suture contiguous to the first portion and extending out of the anchor body, a third portion of the suture contiguous to the second portion and extending within the longitudinal passageway proximally to distally, and a fourth portion of the suture contiguous to the third portion and extending along the exterior surface distally to proximally; and

a proximal member joined to the anchor body by a frangible connection, a proximal member axial passage within the proximal member, the proximal member axial passage containing an interference member coaxially aligned with the longitudinal passageway.

2. The knotless suture anchor of claim 1 wherein the interference member is operable to axially slide into the longitudinal passageway and secure the first portion of the suture and the third portion of the suture within the longitudinal passageway by compressing the suture portions between the interference member and the anchor body.

3. The knotless suture anchor of claim 1 further comprising an interference member retainer having a retainer axial passage, the interference member retainer engaging the proximal member axial passage in axial sliding relationship, the interference member engaging the retainer axial passage in axial sliding relationship.

4. The knotless suture anchor of claim 3 further comprising an inserter operable to engage the proximal member in axial force transmitting relationship in a first direction, the inserter having a pushrod mounted for axial translation within the inserter, the pushrod being operable to engage the interference member in axial force transmitting relationship in a second direction opposite the first direction and expel the interference member from the proximal member into the anchor body, the pushrod being further operable to engage the interference member retainer in axial force transmitting relationship to press the interference member retainer against the anchor body and separate the anchor body and proximal member at the frangible connection.

5. The knotless suture anchor of claim 1 wherein the anchor body has a plurality of distal openings.

6. The knotless suture anchor of claim 5 wherein the plurality of distal openings comprises first and second openings through a sidewall of the anchor body nearer the distal end than the proximal end.

7. The knotless suture anchor of claim 5 wherein the first portion of the suture passes through at least one of the plurality of distal openings and the third portion of the suture passes through at least another of the plurality of distal openings.

8. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, a first distal opening communicating with the longitudinal passageway nearer the distal end than the proximal end, and a second distal opening;

a proximal member joined to the anchor body by a frangible connection, the proximal member having a proximal member axial passage; and

an interference member held by the proximal member and coaxially aligned with the longitudinal passageway;

wherein the first and second distal openings are formed through a sidewall of the anchor body nearer the distal end than the proximal end, the first and second distal openings being aligned on the same side of the anchor body and spaced axially away from one another.

9. The knotless suture anchor of claim 8 wherein the interference member is mounted in axial sliding relationship within the proximal member and wherein the interference member is operable to slide axially out of the proximal member and into the longitudinal passageway of the anchor body.

10. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a first distal opening communicating with the longitudinal passageway nearer the distal end than the proximal end;

a proximal member joined to the anchor body by a frangible connection, the proximal member having a proximal member axial passage; and

an interference member held by the proximal member and coaxially aligned with the longitudinal passageway; and

an interference member retainer having a retainer axial passage, the interference member retainer engaging the proximal member axial passage in axial sliding relationship, the interference member engaging the retainer axial passage in axial sliding relationship.

11. The knotless suture anchor of claim 10 further comprising an inserter operable to engage the proximal member in axial force transmitting relationship in a first direction, the inserter having a pushrod mounted for axial translation within the inserter, the pushrod being operable to engage the interference member in axial force transmitting relationship in a second direction opposite the first direction and expel the interference member from the proximal member into the anchor body, the pushrod being further operable to engage the interference member retainer in axial force transmitting relationship to press the interference member retainer against the anchor body and separate the anchor body and proximal member at the frangible connection.

12. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a first distal opening communicating with the longitudinal passageway nearer the distal end than the proximal end;

a proximal member joined to the anchor body by a frangible connection, the proximal member having a proximal member axial passage; and

an interference member held by the proximal member and coaxially aligned with the longitudinal passageway; and

a first portion of suture extending within the longitudinal passageway and a second portion of suture contiguous to the first portion of suture extending from the anchor body, a third portion of suture contiguous to the second portion of suture and extending within the longitudinal passageway proximally to distally, a fourth portion of suture contiguous to the third portion and extending along the exterior surface distally to proximally.

13. The knotless suture anchor of claim 12 further comprising a frangible elongate tube having a proximal end and a distal end, wherein the second portion of suture passes through the tube from the proximal end to the distal end.

14. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, a first distal opening communicating with the longitudinal passageway nearer the distal end than the proximal end and a second distal opening;

a proximal member joined to the anchor body by a frangible connection, the proximal member having a proximal member axial passage;

an interference member held by the proximal member and coaxially aligned with the longitudinal passageway;

a first suture threader extending within the longitudinal passageway, the first suture threader extending through the proximal opening to a first threader loop end and the first suture threader extending through the first distal opening to a first threader grip end, the first threader loop end defining a suture capture loop; and

a second suture threader extending within the longitudinal passageway, the second suture threader extending through the proximal opening to a second threader grip end and the second suture threader extending through the second distal opening to a second threader loop end, the second threader loop end defining a suture capture loop.

15. A knotless suture anchor comprising:

an anchor body having an exterior surface, a proximal end, a distal end, a longitudinal axis extending between the proximal and distal end, an interior longitudinal passageway extending at least partway from the proximal end toward the distal end, a proximal opening communicating with the longitudinal passageway nearer the proximal end, and a distal opening communicating with the longitudinal passageway nearer the distal end;

a proximal member joined to the anchor body by a frangible connection, the proximal member having a sidewall defining a proximal member axial passage coaxial with the longitudinal passageway, the proximal member having an aperture through the sidewall adjacent to the frangible connection, the proximal member being operable to break away from the anchor body at the frangible connection causing the aperture to open distally.

16. The knotless suture anchor of claim 15 further comprising an interference member mounted in the proximal member axial passage in coaxial sliding relationship.

17. The knotless suture anchor of claim 16 further comprising an interference member retainer having a retainer axial passage, the interference member retainer engaging the proximal member axial passage in axial sliding relationship, and an interference member engaging the retainer member axial passage in axial sliding relationship.

18. The knotless suture anchor of claim 17 further comprising an inserter operable to engage the proximal member in axial force transmitting relationship in a first direction, the inserter having a pushrod mounted for axial translation within the inserter, the pushrod being operable to engage the interference member in axial force transmitting relationship in a second direction opposite the first direction and expel the interference member from the proximal member into the anchor body, the pushrod being further operable to engage the interference member retainer in axial force transmitting relationship to press the interference member retainer against the anchor body and separate the anchor body and proximal member at the frangible connection.