SELF-RETAINING WOUND CLOSURE DEVICE INCLUDING AN ANCHORING LOOP
First Claim
Patent Images
1. A wound closure device comprising:
- a needle;
a polymer suture filament having a first end from which the needle extends, and a second end;
a plurality of cuts made into a first portion of the polymer suture filament adjacent the first end;
the plurality of cuts defining a plurality of tissue engaging elements distributed along the first portion of the polymer suture filament;
said tissue engaging elements being adapted to permit movement of the first portion of the polymer suture filament through tissue towards the first end, and prevent movement of the first portion of the polymer suture filament through tissue towards the second end;
a second portion of the polymer suture filament adjacent the second end being formed into a loop; and
the loop having diameter such that the tissue engaging elements can pass through the loop without engaging the loop.
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Abstract
A self-retaining suture includes a plurality of tissue retainers which allow deployment in a deployment direction, but prevent movement in the opposite direction. The self-retaining suture has a needle at the proximal end and a tissue anchor at the distal end. The tissue anchor includes a curved portion of the suture formed into a loop which anchors the suture in the tissue. Additionally, the suture can be passed through a tissue and then passed through the loop to secure the distal end of the suture to the tissue.
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Citations
20 Claims
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1. A wound closure device comprising:
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a needle; a polymer suture filament having a first end from which the needle extends, and a second end; a plurality of cuts made into a first portion of the polymer suture filament adjacent the first end; the plurality of cuts defining a plurality of tissue engaging elements distributed along the first portion of the polymer suture filament; said tissue engaging elements being adapted to permit movement of the first portion of the polymer suture filament through tissue towards the first end, and prevent movement of the first portion of the polymer suture filament through tissue towards the second end; a second portion of the polymer suture filament adjacent the second end being formed into a loop; and the loop having diameter such that the tissue engaging elements can pass through the loop without engaging the loop. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A wound closure device comprising:
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a flexible strand having a first portion and a second portion; a needle extending from the first portion; a plurality of tissue engaging elements extending from the first portion of the flexible strand, said tissue engaging elements being directed away from the needle and extended away from said flexible strand; wherein said plurality of tissue engaging elements permit movement of the flexible strand through tissue towards the needle and prevents movement of the flexible strand through tissue in an opposite direction; wherein said second portion of the flexible strand ends in a loop; and wherein said second portion of the flexible strand is positioned within the loop. - View Dependent Claims (18)
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19. A suture comprising:
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a first pointed end; an elongated body having a second end; the first pointed end extending from said elongated body; said elongated body including a strand of bio-absorbable polymer; a plurality of tissue engaging elements formed in said elongated body and extending from the periphery of the elongated body; said tissue engaging elements configured to permit movement of the elongated body through tissue in a direction of movement of said first pointed end by yielding toward the elongated body and, and said tissue engaging elements configured to prevent movement in a direction opposite the direction of movement of the first pointed end by engaging tissue; wherein said second end of the elongated body forms an anchor adapted to secure the second end to tissue; and wherein said anchor has a curved portion of the elongated body formed into a loop. - View Dependent Claims (20)
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Specification