Barbed suture
First Claim
1. A barbed monofilament comprising a triangular primary cross-section defined by a periphery including first, second and third points of said triangle, and a plurality of barbs formed therein, wherein successive barbs are staggered around the periphery of the monofilament, and extend inwardly into the monofilament to a predetermined depth from the first, second and third points respectively, and wherein a distal portion of each barb is defined by a cut extending for a first length at a substantially constant angle relative to a longitudinal axis of the monofilament, and a proximal portion of each barb is defined by a cut extending for a second length at an angle of approximately zero degrees relative to the longitudinal axis of the monofilament,wherein the barbed monofilament is comprised of a non-absorbable material selected from the group consisting of polyolefins, polyamides and polyvinylidene fluoride, and wherein the barbed monofilament is adapted for use as an implantable surgical suture for approximating tissue.
1 Assignment
0 Petitions
Accused Products
Abstract
A barbed monofilament and a method for making the same is provided. The barbed monofilament has a substantially triangular primary cross-section defined by a periphery including first, second and third points of said triangle, and further has a plurality of barbs formed therein. Successive barbs are staggered around the periphery of the monofilament, and extend inwardly into the monofilament to a predetermined depth from the first, second and third points respectively.
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Citations
26 Claims
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1. A barbed monofilament comprising a triangular primary cross-section defined by a periphery including first, second and third points of said triangle, and a plurality of barbs formed therein, wherein successive barbs are staggered around the periphery of the monofilament, and extend inwardly into the monofilament to a predetermined depth from the first, second and third points respectively, and wherein a distal portion of each barb is defined by a cut extending for a first length at a substantially constant angle relative to a longitudinal axis of the monofilament, and a proximal portion of each barb is defined by a cut extending for a second length at an angle of approximately zero degrees relative to the longitudinal axis of the monofilament,
wherein the barbed monofilament is comprised of a non-absorbable material selected from the group consisting of polyolefins, polyamides and polyvinylidene fluoride, and wherein the barbed monofilament is adapted for use as an implantable surgical suture for approximating tissue.
- 11. A barbed monofilament comprising a triangular primary cross-section defined by a periphery including first, second and third points of said triangle, and a plurality of barbs formed therein, wherein successive barbs are staggered around the periphery of the monofilament, and extend inwardly into the monofilament to a predetermined depth from the first, second and third points respectively, and wherein a distal portion of each barb is defined by a cut extending for a first length at a substantially constant angle relative to a longitudinal axis of the monofilament, and a proximal portion of each barb is defined by a cut extending for a second length at an angle of approximately zero degrees relative to the longitudinal axis of the monofilament, wherein the barbed monofilament is comprised of an absorbable material selected from the group consisting of polydioxinone and caprolactone co-glycolide, and wherein the barbed monofilament is adapted for use as an implantable surgical suture for approximating tissue.
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19. A method for forming a barbed monofilament comprising the steps of:
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forming a monofilament having a triangular primary cross-section defined by a periphery including first second and third points of the triangle, wherein the barbed monofilament is comprised of a non-absorbable material selected from the group consisting of polyolefins, polyamides and polyvinylidene fluoride, or an absorbable material selected from the group consisting of polydioxinone and caprolactone co-glycolide; and forming a plurality of sets of barbs in said monofilament, wherein each set includes first, second and third barbs extending inwardly to a predetermined depth from the first second and third points respectively, and wherein the barb forming step further comprises, for each barb, cutting the monofilament for a first distance using a cutting element positioned at a substantially constant angle relative to a longitudinal axis of the monofilament and subsequently further cutting the monofilament for a predetermined second distance at an angle of approximately 0 degrees relative to the longitudinal axis of the monofilament, wherein the formed barbed monofilament is adapted for use as an implantable surgical suture for approximating tissue. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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Specification