U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Harpoon suture anchor

Patent 5141520 Issued on August 25, 1992. Estimated Expiration Date: Icon_subject October 29, 2011. 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

3512289

Bone-fixating surgical implant device
Patent #: 4409974
Issued on: 10/18/1983
Inventor: Freedland

Ear tag applicators
Patent #: 4497321
Issued on: 02/05/1985
Inventor: Fearing ,   et al.

Retinal tack Patent #: 4712550
Issued on: 12/15/1987
Inventor: Sinnett

Inventors

Application

No. 783915 filed on 10/29/1991

US Classes:

606/232, Suture retaining means (e.g., buttons)606/60, Internal fixation means606/65, Femoral screw606/104Screw or pin placement or removal means

Examiners

Primary: Pellegrino, Stephen C.
Assistant: Schmidt, Jeffrey A.

Attorney, Agent or Firm

International Class

A61B 017/00

Abstract

A harpoon suture anchor and driver, which suture anchor includes a pointed forward harpoon end that is for driving into a bone, the driver for mounting the suture anchor onto one end and is configured to receive a hammer force on its other end, and transmit that force into so as to drive the suture anchor harpoon end into which bone. An end of a suture connects into a cavity of a suture anchor cylindrical body, which cylindrical body fits into a suture anchor mount of the driver that includes a collar for contacting the bone surface limiting suture anchor penetration. Which suture anchor mount is open therethrough as is a driver rod connected thereto, the openings for maintaining the suture fitted therein until the driver and suture anchor mount are pulled therefrom. The invention includes three embodiments of suture anchor harpoon ends: a first embodiment of which is a regular cone that is inturned at a skirt into a wall that extends to the cylindrical body, sloping towards the pointed end, the skirt to flex inwardly as the suture anchor is hammered into a bone; a second embodiment of which is like the first embodiment except spaced arcuate flutes are removed from the regular cone body, leaving spaced body sections in a cross configuration, skirt sections of which body sections to flex inwardly during installation; and a third embodiment of which that is like the second embodiment except that the removed flutes are identically twisted or angled to the longitudinal axis, with the body sections likewise twisted, which twist imparts a rotation to the suture anchor around its longitudinal axes as it is hammered into a bone.

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