Self-Locking Tissue Anchors

Abstract: a tissue anchor is provided that includes a metal wire shaped so as to define a straight anchor-shaft portion and a tissue-coupling portion extending therefrom. the tissue anchor is configured such that when the tissue-coupling portion is in an unconstrained state: (a) the tissue-coupling portion crosses itself at first and second loop-end longitudinal portions along the wire, so as to define a looped portion, which generally defines a looped-portion plane, (b) the first loop-end longitudinal portion is closer to a first proximal wire end along the wire than the second loop-end longitudinal portion is to the first proximal wire end along the wire, and (c) a greatest absolute distance between the first loop-end longitudinal portion and the first proximal wire end is greater than a greatest absolute distance between the second loop-end longitudinal portion and the first proximal wire end. other embodiments are also described.

Inventor(s): Patrick Griffin, Ian O'Gorman

CPC Classification: A61B17/0401 ({Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors ( takes precedence; fixation devices for tendons or ligaments )})

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