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AssigneeKFx Medical Corporation
InventorsMalcolm Heaven, Mikxay Sirivong, Rudy Pretti, Michael Ko, John P. Greelis
Estimating the term…
Disclosed herein are methods and devices for securing soft tissue to a rigid material such as bone. A bone anchor is described that includes an anchor body with expandable tines and a spreader that expands the tines into bone. Also disclosed is a bone anchor that includes a base and a top such that suture material may be attached to apertures in the anchor top or else compressed between surfaces on the base and top to secure the suture to the anchor. Methods are described that allow use of single bone anchor to secure tissue to bone or also to use more than one bone anchor to provide multiple lengths of suture material to compress a large area of soft tissue against bone.
An anchor for attaching tissue to bone, comprising:
Dependencies are inferred from the claim text.
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For suturing wounds; Holders or packages for needles or suture materials: suture anchors, buttons or pledgets, i.e. means for attaching sutures to…
Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing…:…
By insertion of a separate member into the body of the anchor: the separate member staying in the anchor after placement
Medical diagnosis and surgery
About 3 years 11 months of term left · ends 21 Sep 2030 (estimated)
1. Field of the Invention
The present invention relates to medical devices. Some embodiments relate to a bone anchor for securing body tissue to bone.
2. Description of the Related Art
FIG. 1A shows a side perspective view of one embodiment of a suture anchor in an undeployed or unexpanded state.
FIG. 1B shows a perspective view of one embodiment of an undeployed suture anchor wherein the spreader is partially inserted into the bone anchor.
FIG. 1C shows a side view of one embodiment of a suture anchor in the deployed or expanded state.
Various embodiments include an anchor that can be inserted into bone and to which sutures can be attached. In one embodiment, the anchor comprises expandable tines that secure the anchor in bone after insertion. In some embodiments, a spreader is provided that can be used to expand the tines. Some embodiments include one or more suture lengths that are pre-attached to the spreader.
In various embodiments, soft tissue may be attached to bone utilizing one or more suture anchors. FIG. 1A depicts a side perspective view of a suture anchor 100 comprising an anchor body 200 and a spreader 300. The anchor body 200 is comprised of tines 220 and teeth 230. The tines 220 expand from the distal end of the anchor body 200 when the spreader 300 is engaged with the anchor body 200. The proximal end of the spreader 300 is configured to fit into the distal end of the anchor body 200. In FIG. 1A, the suture anchor 100 is in the undeployed, or unexpanded position. A suture loop 550 extends through the anchor body 200 and the spreader 300 where it is securely knotted 350 outside of the distal end of the spreader 300. The knotted suture 350 is tightened, such that suture loop 550 forms a tightened knot that cannot pass back through the spreader 300 or the anchor body 200 but rather is fixed outside of the spreader 300. Alternatively, the suture loop may be secured against being pulled through the spreader 300 using securement mechanisms other than knot, such as cross-pin or biocompatible adhesive.
FIG. 1B shows another side perspective view of the unexpanded suture anchor 100. In this embodiment, the spreader 300 is slightly inserted in the axial bore 215 at the distal end of the anchor body 200.