Two-piece suture anchor with barbs
AssigneeEthicon, Inc.
InventorsThu A. Le, Izi Bruker, Brian H. Luscombe, Dennis D. Jamiolkowski
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Abstract
A two-piece suture anchor is disclosed wherein a barrel-like main portion is provided with a pair of legs in a central opening. A ball-like actuating device is received within the central opening and drawn upward into the device in order to separate the legs and cause the device to expand into the soft cancellous bone of a previously prepared bone site.
Claims15
An apparatus for holding a suture comprising
- a head;
- an expandable body extending distally from said head comprising at least two legs;
- and, wedging means for expanding said body by proximal relative movement of said wedging means within said expandable body comprising a substantially spherical object defining a hole therethrough for receipt of a suture and a suture received within said hole passing beyond said head to permit gripping of said suture for movement of said wedging means.
The apparatus according to claim 7 further including a second constriction defined by the inner surface of said legs in a second position spaced longitudinally from said first constriction in order to hold said sphere at a distal position urging said legs into a spread position.
A suture anchor for receipt within an opening defined by the bone comprising a head portion having extending distally therefrom at least two expandable leg portions, said leg portions defining an internal passageway of nonconstant cross-sectional dimension;
- a spherical expanding means for receipt within said passageway and having a diameter larger than said passageway to spread said legs upon movement of said sphere within said passageway toward said head;
- an opening defined by said sphere and a suture received therethrough, having ends of said suture passing beyond the head of said anchor to permit gripping of said suture for movement of said spherical expanding means.
Dependencies are inferred from the claim text.