SYSTEM AND METHOD FOR ATTACHING SOFT TISSUE TO BONE
First Claim
Patent Images
1. A suture anchor, comprising:
- a distal portion configured to engage bone; and
a proximal portion comprising at least two separate suture capture mechanisms, each configured to secure a separate suture without tying any knots.
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Abstract
Disclosed herein are methods and devices for securing soft tissue to a rigid material such as bone. A bone anchor is described that comprises a base and a top such that suture material may be compressed between surfaces on the base and top to secure the suture to the anchor. Also described is an inserter that can be used to insert the bone anchor into bone and move the anchor top relative to the anchor base to clamp suture material there between. Also described is a soft-tissue and bone piercing anchor and associated inserter. Methods are described that allow use of the bone anchors to provide multiple lengths of suture material to compress a large area of soft tissue against bone.
242 Citations
36 Claims
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1. A suture anchor, comprising:
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a distal portion configured to engage bone; and
a proximal portion comprising at least two separate suture capture mechanisms, each configured to secure a separate suture without tying any knots. - View Dependent Claims (2, 3, 4, 5)
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6. A suture anchor, comprising:
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a distal portion configured to engage bone, the distal portion comprising a proximally facing surface;
a proximal portion comprising a distally facing surface; and
a medial portion comprising a proximally facing surface and a distally facing surface, wherein the anchor is configured to secure at least one suture by clamping between the proximally facing surface of the distal portion and the distally facing surface of the medial portion and adapted to secure at least one other suture by clamping between the distally facing surface of the proximal portion and the proximally facing surface of the medial portion. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method of attaching two or more sutures to a suture anchor, the method comprising:
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moving a first suture laterally into a first suture capture mechanism on the suture anchor;
moving a second suture laterally into a second suture capture mechanism on the suture anchor;
actuating the first suture capture mechanism to secure the first suture to the suture anchor; and
actuating the second suture capture mechanism to secure the second suture to the suture anchor. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method of attaching soft tissue to bone, comprising:
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inserting a first, second, and third anchor into the bone;
securing a first suture between the first and second anchors over the soft tissue, wherein securing the first suture to the first anchor comprises laterally moving the first suture into a first suture capture mechanism; and
securing a second suture between the first and third anchors over the soft tissue, wherein securing the second suture to the first anchor comprises laterally moving the second suture into a second suture capture mechanism. - View Dependent Claims (21, 22, 23, 24)
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25. A suture anchor, comprising:
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an anchor base configured to engage bone, wherein the anchor base comprises a bore having an opening on a proximal end of the anchor base, wherein the inner surface of the bore comprises angled protrusions extending in a direction away from the opening; and
an anchor top comprising a shaft configured to fit within the bore, wherein the shaft comprises circumferential grooves in its outer surface, wherein the circumferential grooves have a profile shaped such that when the angled protrusions extend into the grooves, the protrusions are not significantly deflected from their orientation prior to insertion of the shaft into the bore. - View Dependent Claims (26, 27, 28)
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29. A suture anchor, comprising:
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an anchor base configured to engage bone, wherein a proximal end of the anchor base comprises a circular groove; and
an anchor top comprising a circular lip configured to fit inside the circular groove such that a suture can be clamped between the surfaces of the lip and the surfaces of the groove, wherein a least one surface of the lip or the groove comprise teeth configured to engage the suture.
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30. A suture anchor inserter, comprising:
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a handle;
a tube coupled to the handle configured to engage an actuatable suture anchor;
a shape memory alloy wire coupled to the handle and coupled to the actuatable suture anchor; and
a heating element configured to heat the shape memory alloy wire, thereby causing the wire to contract relative to the tube and actuate the suture anchor. - View Dependent Claims (31, 32, 33)
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34. A suture anchor inserter, comprising:
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a handle;
a tube coupled to the handle configured to engage an actuatable suture anchor;
a wire coupled to the handle and coupled to the actuatable suture anchor; and
a motor configured to move the wire axially relative to the tube, thereby actuating the suture anchor. - View Dependent Claims (35, 36)
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Specification