Ligation clip with flexible clamping feature

摘要

A polymeric surgical ligating clip is provided having curved leg members joined by a resilient hinge. A leg member includes a flexible rib protruding from a vessel clamping inner surface and extends longitudinally between the proximal and distal end portions of the leg member. The flexible rib defines a channel extending transversely through the rib along a majority of said length. The flexible rib can collapse and provides better retention of the clip on a vessel. The clip can contain a flexible rib on both legs in an interlocking fashion. Or a plurality of teeth can protrude from a second vessel clamping inner surface of a second leg member. The plurality of teeth can include first and second rows of teeth extending longitudinally on the second leg member, transversely separated from each other on opposite sides of a centerline of the clip.

主权项

1. A ligating clip for occluding vessels, comprising:
first and second curved leg members having respective proximal and distal end portions, the proximal end portions being joined by a resilient hinge, the first and second curved leg members having respective first and second vessel clamping inner surfaces, a flexible rib extending longitudinally along a length in a direction from the proximal end portion to the distal end portion of the first curved leg member, the flexible rib being attached spaced from the first vessel clamping inner surface via at least two attachment portions to define a channel extending transversely between the flexible rib and the first vessel clamping inner surface, and a first pair of bosses extending transversely from opposite sides of the distal end portion of the first curved leg member, and a second pair of bosses extending transversely from opposite sides of the distal end portion of said second curved leg member, wherein the clip is configured to be independently retained without use of any external applier or tool on a vessel after the clip is applied to occlude said vessel.