| 摘要 |
A barbed surgical suture is configured to grip the tissue through which it is inserted. The suture has a generally flat and elongated suture body with a multiplicity of barbs located along one or both of the lateral edges. The barbs are of sufficient size and appropriate geometry for fastening the tissue and achieving closure of an incision or wound without the need for tying knots in the suture. The barbed surgical suture may be configured as a single-ended suture with all of the barbs aligned to allow the suture to move through tissue in one direction only. Alternately, it may be configured as a double-ended suture with the barbs on a first end portion aligned to allow the suture to move through tissue in a one direction and the barbs on a second end portion aligned to allow the suture to move through tissue in the opposite direction. The suture needles may be permanently attached or removably attached to the barbed surgical suture or, alternatively, the suture needle may be integrally formed with the barbed surgical suture. Methods are described for manufacturing the barbed surgical suture by stamping, cutting or progressive die cutting the suture out of flat material, or by chemically etching the suture out of flat material and or by injection molding. Optionally, specialized coatings may be added to enhance the performance of the barbed surgical suture.
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