# US 2016/0354089 A1 · Ligation clip with flexible clamping feature > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0354089 A1 - Document ID: US20160354089A1 - Status: Published application - Kind: A1 - Application number: 15/241,310 - Filed: 2016-08-19 - Published: 2016-12-08 - Earliest claimed: 2007-12-31 - Assignees: Teleflex Medical Incorporated - Applicants: Teleflex Medical Incorporated - Inventors: PAUL E. WHITING - Web page: https://patentgrep.com/patent/US20160354089A1 ## CPC - A61B 17/122: Clamps or clips, e.g. for the umbilical cord {(for the vas deferens A61F6/206)} - A61B 2017/00862: {elastic or resilient} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract 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. ## Claims ### Claim 1 A ligating clip, comprising, first and second curved leg members having respective proximal and distal end portions, the proximal end portions being joined by a resilient hinge, a flexible rib extending longitudinally along a length from the proximal end portion to the distal end portion of the first curved member, the flexible rib being attached spaced from the first curved leg member via at least two attachment portions to define a channel extending transversely between the flexible rib and the first curved leg member, 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 the second curved leg member. ### Claim 2 (depends on 1) The ligating clip of claim 1, further comprising: a plurality of teeth protruding on a vessel clamping inner surface on the second curved leg member. ### Claim 3 (depends on 2) The ligating clip of claim 2, wherein the plurality of teeth include first and second rows of teeth extending longitudinally between the proximal and distal end portions of the second curved leg member, the first and second rows being transversely separated from each other on opposite sides of a centerline of the vessel clamping inner surface. ### Claim 4 (depends on 1) The ligating clip of claim 1, wherein the length of the flexible rib has a concave radius of curvature when facing a vessel clamping inner surface on the second curved leg member. ### Claim 5 (depends on 1) The ligating clip of claim 1, wherein the first curved leg member terminates at its distal end in a deflectable hook member curved toward the second curved leg member, and the second curved leg member terminates at its distal end in a complimentary locking portion to the deflectable hook member, the hook member deflecting about the distal end of the second curved leg member to lock the clip in a closed position when the first and second curved leg members are moved to the closed position. ### Claim 6 (depends on 5) The ligating clip of claim 5, wherein the hook member terminates in a sharp pointed tip extending toward the proximal end portion of the first curved leg member, and the distal end of the second curved leg member includes a groove through which the sharp pointed tip passes when the first and second curved leg members are moved to the closed position. ### Claim 7 (depends on 1) The ligating clip of claim 1, wherein the resilient hinge is an integral resilient hinge with a continuous concave inner surface and a continuous convex outer surface. ### Claim 8 A ligating clip, comprising: first and second curved leg members having respective proximal and distal end portions, the proximal end portions being joined by a resilient hinge, and at least one flexible rib, the at least one flexible rib extending longitudinally along a length 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 curved leg member via at least two attachment portions to define a channel extending transversely between the flexible rib and the first 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 the vessel, wherein the second curved leg member terminates at its distal end in a deflectable hook member curved toward the first curved leg member, and the first curved leg member terminates at its distal end in a complimentary locking portion to the deflectable hook member, the hook member deflecting about the distal end of the first curved leg member to lock the clip in a closed position when the first and second curved leg members are moved to the closed position, and wherein the hook member terminates in a sharp pointed tip extending toward the proximal end portion of the second curved leg member, and the distal end of the first curved leg member includes a groove through which the sharp pointed tip passes when the first and second curved leg members are moved to the closed position. ### Claim 9 (depends on 8) The ligating clip of claim 8, wherein the first and second curved leg members have respective first and second vessel clamping inner surfaces. ### Claim 10 (depends on 8) The ligating clip of claim 8, wherein the first curved leg member has a convex radius of curvature facing the second curved leg member, and the second curved leg member has a concave radius of curvature facing the first curved leg member. ### Claim 11 (depends on 8) The ligating clip of claim 8, further comprising: a first pair of bosses extending transversely from opposite sides of the distal end portion of the first leg member, and a second pair of bosses extending transversely from opposite sides of the distal end portion of the second leg member. ### Claim 12 (depends on 8) The ligating clip of claim 8, wherein the resilient hinge is an integral resilient hinge with a continuous concave inner surface and a continuous convex outer surface ### Claim 13 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 curved leg member having a first flexible rib extending longitudinally along a first length from the proximal end portion to the distal end portion of the first curved leg member, the first flexible rib being attached spaced from the first curved leg member via at least two attachment portions to define a first channel extending transversely between the first flexible rib and the first curved leg member, and the second curved leg member having a second flexible rib extending longitudinally along a second length from the proximal end portion to the distal end portion of the second curved leg member, the second flexible rib being attached spaced from the second curved leg member via at least two attachment portions to define a second channel extending transversely between the second flexible rib and the 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. ### Claim 14 (depends on 13) The ligating clip of claim 13, wherein the first flexible rib is disposed on a first side of the clip, and the second flexible rib is disposed on a second side of the clip opposite the first side. ### Claim 15 (depends on 13) The ligating clip of claim 13, wherein the first and second curved leg members having respective first and second vessel clamping inner surfaces facing each other when said first and second leg members are moved from an open position to a closed position about said resilient hinge. ### Claim 16 (depends on 15) The ligating clip of claim 15, wherein the first curved leg member has a concave radius of curvature on the first vessel clamping inner surface, and the second curved leg member has a convex radius of curvature on the second vessel clamping inner surface. ### Claim 17 (depends on 13) The ligating clip of claim 13, wherein the resilient hinge is an integral resilient hinge with a continuous concave inner surface and a continuous convex outer surface