Expandable bone anchor and method of anchoring a suture to a bon

Details Expandable bone anchor and method of anchoring a suture to a bon Expandable bone anchor and method of anchoring a suture to a bon

1992-05-14

1993-08-17

Pellegrino, Stephen C.

Surgery

Instruments

Suture retaining means

606 73, 606 75, 411511, A61B 1700

Patent

active

052364453

ABSTRACT:
A bone anchor, for securing a suture to a bone, has an open proximal end and a body that tapers to a solid distal tip. The anchor is placed deep in a borehole in a bone using an insertion instrument that is inserted through the open proximal end of the anchor. The tip of the instrument is a spherical knob that snaps into a corresponding recess inside the anchor. The instrument has an oval cross-section that does not bear against the walls of the anchor during insertion. Once the anchor is in place, however, the anchor is expanded by rotating the instrument to bring the exterior of the instrument into contact with the walls of the anchor. The anchor is free to pivot about the spherical knob on the instrument, which allows the anchor to orient itself to the shape and size of the borehole.

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Russell Warren, M.D., Technique for Using the TAG Tissue Anchor-Rod Style, Published Jul. 16, 1990.
John O. Hayhurst, M.D., Technique for Using the TAG Tissue Anchor-Wedge Style, Published Jul. 16, 1990.
Arthrex Brochure--"Arthrex ESP System: Expanding Suture Plug", Feb. 1991, [Published prior to Mar. 1, 1991].

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