Method and apparatus for attaching connective tissues to bone using a knotless suture anchoring device
6 Assignments
0 Petitions
Accused Products
Abstract
A device for attaching connective tissue to bone has a longitudinal axis and comprises an annular toggle member and a body member disposed distally of the toggle member, such that there is an axial space between the toggle member and the body member. The toggle member is movable between an undeployed position wherein the toggle member has a smaller profile in a direction transverse to the axis and a deployed position wherein the toggle member has a larger profile in the direction transverse to the axis. When installed in a desired procedural site, in suitable bone, suturing material extends axially through a center aperture in the annular toggle member, without being secured to or contacting the toggle member. This approach permits a suture attachment which lies entirely beneath the cortical bone surface, and which further permit the attachment of suture to the bone anchor without the necessity for tying knots, which is particularly arduous and technically demanding in the case of arthroscopic procedures.
217 Citations
44 Claims
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1-35. -35. (Canceled)
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36. A method of using suture to secure soft tissue with respect to a body cavity, comprising:
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passing a length of suture material through soft tissue so that a loop of suture material is disposed in the soft tissue, resulting in two free ends;
providing an anchor body having an open proximal end and a lumen, and a suture return member disposed in the anchor body;
passing the two free ends of the length of suture into the lumen of the anchor body through the open proximal end, and looping them about the suture return member such that the two free ends of the suture extend proximally from the lumen through said open proximal end;
fixing the anchor body with respect to the body cavity; and
tensioning the loop of suture material by pulling on one or both of the two free ends of the length of suture, to approximate the soft tissue with respect to the body cavity as desired. - View Dependent Claims (37, 38, 39, 40, 41)
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42. A method of securing soft tissue to bone, comprising:
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disposing an anchor body having a longitudinal axis and having a length of suture secured therein within a bore disposed in a portion of bone; and
deploying a toggle member attached to a proximal end of the anchor body from an undeployed position wherein said toggle member has a smaller profile in a direction transverse to said axis to a deployed position wherein said toggle member has a larger profile transverse to said axis, such that the toggle member fixes the anchor body axially relative to the portion of bone. - View Dependent Claims (43, 44)
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Specification