Suture anchor
Patent 5573548 Issued on November 12, 1996. Estimated Expiration Date: 
June 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References D331463 D331626 2890734 Suture anchor assembly Surgical fastener Suture anchor system Method and apparatus for anchoring and manipulating cartilage Suture anchor Suture anchor installation tool Suture anchor and suture anchor installation tool InventorsAssigneeApplicationNo. 257762 filed on 06/09/1994US Classes:606/232, Suture retaining means (e.g., buttons)606/73, Threaded fastener element606/74Bone cerclage deviceExaminersPrimary: Jackson, GaryAttorney, Agent or FirmForeign Patent References
International ClassA61B 017/04AbstractA suture anchor comprises a shaft having a proximal and a distal end. A screw thread extends from the shaft and spirals from the proximal to the distal end. A cross-hole is formed through the shaft and the screw thread near the proximal end. The cross-hole receives a suture which provides a double end of suture to facilitate attachment of soft tissue. In a preferred embodiment, the shaft is tapered from a larger diameter proximally to a smaller diameter distally while the major diameter of the screw thread remains constant over most of its length. The suture anchor contains a driven portion which preferably contains a groove to conduct the suture from the cross-hole to the free end of the driven portion. A driver for the suture anchor having an engagement portion for engaging the driven portion likewise contains a groove so that when the engagement portion engages the driven portion the two grooves align to form an enclosed passageway for conducting the suture as the suture traverses the driven portion.Other References
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