Knotless suture locking bone plate

Patent metadata

Field	Value
Publication number	US-10966764-B2
Application number	US-201816004587-A
Country	US
Kind code	B2
Filing date	Jun 11, 2018
Priority date	Jun 12, 2017
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

A syndesmosis system includes a bone plate and an anchor. The bone plate includes a body extending between first and second surfaces. The body defines a strand-locking hole extending from the first surface to the second surface. A first locking element and a second locking element each extend from a first side wall of the strand-locking hole to a second side wall of the strand-locking hole. Each of the first anchor and the second anchor extend transverse to a central axis of the anchor hole. The anchor includes a body defining a first wing and a second wing. The first and second wings are coupled at a distal end and are biased away from a longitudinal axis of the body. The first and second wings are configured to maintain the anchor in a fixed position when inserted into a hole formed in a bone.

First claim

What is claimed is:

1. A system for syndesmosis repair, comprising:
a bone plate extending between a first surface and a second surface, wherein the bone plate defines a strand-locking hole extending from the first surface to the second surface and oriented along a longitudinal axis of the bone plate;
a first, fixed locking element and a second locking element that is moveable along the longitudinal axis, each locking element extending from a first side wall that defines the strand-locking hole to a second side wall that defines the strand-locking hole, wherein each of the first locking element and the second locking element extend transverse to the longitudinal axis;
an anchor comprising a distal end, a first wing and a second wing, wherein the first and second wings are coupled at the distal end and biased away from a longitudinal axis of the anchor, and wherein the first and second wings are configured to maintain the anchor in a fixed position when the anchor is inserted into a hole formed in a bone; and
a flexible strand coupled to the bone plate and to the anchor.

2. The system of claim 1 , wherein a first end of the second locking element is positioned within a first slot defined in the first side wall of the strand-locking hole and a second send of the second locking element is positioned within a second slot defined in the second side wall of the strand-locking hole.

3. The system of claim 1 , wherein the second locking element moves along the central axis from a first position to a second position when a predetermined force is applied to the second locking element, wherein the flexible strand is adjustable when the second locking element is in the first position and is locked when the second locking element is in the second position.

4. The system of claim 3 , wherein the predetermined force is applied to the second locking element by the flexible strand.

5. The system of claim 1 , wherein the anchor comprises a coupling extension extending from the distal end of the first wing and the second wing and defining at least one hole extending therethrough, wherein the at least one hole is sized and configured to receive a flexible strand therethrough.

6. The system of claim 1 , wherein the bone plate defines a locking fastener hole extending from the first surface to the second surface.

7. The system of claim 1 , wherein the bone plate defines a non-locking fastener hole extending from the first surface to the second surface.

8. The system of claim 1 , wherein the bone plate comprises a shaft portion disposed in a first plane, a head portion disposed in a second plane, and an offset portion extending between the shaft portion and the head portion.

9. A method of syndesmosis, comprising:
forming a bone tunnel through a first bone and a second bone;
passing at least one flexible strand through the bone tunnel from a first side to a second side, wherein the at least one flexible strand is coupled to an anchor including a body defining a first wing and a second wing, wherein the first and second wings are coupled at a distal end and biased away from a longitudinal axis of the body, and wherein the body is sized and configured for insertion into a first side of the bone tunnel;
passing the at least one flexible strand through a locking hole formed in a bone plate, wherein the bone plate (i) is configured to abut a surface of the second bone defining the second side of the bone tunnel and ii comprises a strand-locking hole extending from a first surface to a second surface with a first, fixed locking element and a second locking element that is moveable along a central axis of the strand-locking hole, each locking element extending from a first side wall of the strand-locking hole to a second side wall of the strand-locking hole, wherein each of the first locking element and the second locking element extend transverse to a central axis of the anchor hole;
positioning the first bone and the second bone at a predetermined spacing by applying a tensioning force to the at least one flexible strand; and
locking the at least one flexible strand at a predetermined length, wherein the at least one flexible strand is locked by the first locking element and the second locking element.

10. The method of claim 9 , wherein insertion of the anchor into the first side of the bone tunnel comprises compressing the first wing and the second wing towards the longitudinal axis.

11. The method of claim 9 , wherein passing the at least one flexible strand through the strand-locking hole comprises passing the at least one flexible strand beneath the second locking element, between the first locking element and the second locking element, and above the first locking element.

12. The method of claim 9 , wherein the at least one flexible strand is coupled to the anchor by passing the at least one flexible strand through a hole formed in a coupling portion of the anchor and forming a knot in the at least one flexible strand.

13. The method of claim 9 , wherein the at least one flexible strand is locked at the predetermined length by transitioning the second locking element from a first position to a second position, wherein the second locking element compresses the at least one flexible strand in the second position.

14. The method of claim 13 , wherein the second locking element transitions from the first position to the second position when a predetermined force is applied to the second locking element by the at least one flexible strand.

15. The method of claim 9 , coupling the bone plate to the second bone by inserting one or more fasteners through one or more fastener holes formed through the bone plate, wherein the bone plate is coupled to the second bone prior to positioning the first and second bone at a predetermined spacing.

16. The method of claim 15 , wherein at least one of the one or more fasteners is a locking fastener and wherein at least one of the one or more fastener holes is a locking hole.

17. A system, comprising:
a bone plate comprising:
a body extending between a first surface and a second surface, wherein the body defines a strand-locking hole extending from the first surface to the second surface;
a first, fixed locking element and a second locking element that is moveable along a central axis of the strand-locking hole, each locking element extending from a first side wall of the strand-locking hole to a second side wall of the strand-locking hole, wherein each of the first locking element and the second locking element extend transverse to a central axis of the anchor hole;
an anchor comprising a body defining a first wing and a second wing, wherein the first and second wings are coupled at a distal end and biased away from a longitudinal axis of the body, and wherein the first and second wings are configured to maintain the anchor in a fixed position when the anchor is inserted into a hole formed in a bone, wherein the anchor comprises a coupling extension extending from the distal end of the first wing and the second wing and defining at least one hole extending therethrough; and
a flexible strand extending between the bone plate and the anchor, wherein a first end of the flexible strand is coupled to the at least one hole formed in the coupling extension of the anchor, and wherein a second end of the flexible strand extends beneath the second locking element, between the first locking element and the second locking element, and above the first locking element.

18. The system of claim 17 , wherein the first locking element is a fixed locking element an

Assignees

• Wright Medical Tech Inc

Inventors

• Mccormick Daniel F

Classifications

• A61B2017/0459

  Multiple holes in the anchor through which the suture extends and locking the suture when tension is applied · CPC title

• A61B2017/0448

  Additional elements on or within the anchor · CPC title

• A61B2017/0437

  the barbs being resilient or spring-like · CPC title

• A61B17/842

  Flexible wires, bands or straps (A61B17/72, A61B17/82, A61B17/86 take precedence) · CPC title

• A61B17/8061

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title