| 摘要 |
A barbed suture for connecting tissue, and a combination surgical needle with a barbed suture. The suture includes an elongated body and a plurality of barbs projecting from the body. Each barb causes the suture to resist movement in an opposite direction from which the barb faces. The disposition of the barbs on the body may be staggered, twist cut multiple spiral, overlapping, or random. Also, the configuration of the barbs may be a certain spirality angle α, barb cut angle Θ, barb cut depth, barb cut length, barb cut distance, corrugated barb underside, arcuate barb base, or varying barb size. |
| 主权项 |
1. A barbed suture for connecting human or animal tissue, said suture comprising (a) an elongated body having a longitudinal axis, a first end and a second end and (b) a plurality of barbs projecting from the body and having a multiple spiral disposition, each barb facing in a direction and being adapted for resisting movement of the suture, when in tissue, in an opposite direction from the direction in which the barb faces, the suture comprising barbs with a configuration that includes an underside of the barbs, where the underside of a barb attaches to the suture body along an arcuate line such that the underside of the barb forms a concave surface, wherein the multiple spiral disposition includes barbs spaced longitudinally along the body such that a plane perpendicular to the longitudinal axis of the suture and cutting transversely through the suture and intersecting a barb will not intersect any other barb. |
