# US 2019/0167252 A1 · Anchors and methods for securing suture to bone > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0167252 A1 - Document ID: US20190167252A1 - Status: Published application - Kind: A1 - Application number: 16/269,215 - Filed: 2019-02-06 - Published: 2019-06-06 - Earliest claimed: 2008-06-16 - Assignees: Cayenne Medical, Inc. - Applicants: Cayenne Medical, Inc. - Inventors: Kevin S. Nason; Jordan A. Hoof - Web page: https://patentgrep.com/patent/US20190167252A1 ## CPC - A61B 17/0401: {Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors (A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811)} - A61B 17/0485: {Devices or means, e.g. loops, for capturing the suture thread and threading it through an opening of a suturing instrument or needle eyelet} - A61B 2017/0409: {Instruments for applying suture anchors} - A61B 2017/0412: {having anchoring barbs or pins extending outwardly from suture anchor body} - A61B 2017/0414: {having a suture-receiving opening, e.g. lateral opening} - A61B 2017/0427: {having anchoring barbs or pins extending outwardly from the anchor body} - A61B 2017/044: {with a threaded shaft, e.g. screws} - A61B 2017/0453: {threaded elements, e.g. set screws} - A61B 2017/0456: {Surface features on the anchor, e.g. ribs increasing friction between the suture and the anchor} - A61B 2017/0496: {for tensioning sutures} - A61B 2090/037: {with a frangible part, e.g. by reduced diameter} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A method for securing suture to bone comprises drilling a hole in a desired portion of bone at a desired procedural site, passing a strand of suture through a portion of soft tissue to be approximated to the portion of bone, and extending the free suture ends proximally from the soft tissue. The suture is loaded into an anchor implant. Using an inserter, on a distal end of which is attached the anchor implant, the anchor implant is manipulated into the bone hole. The suture is then tensioned to a desired level by pulling on the free suture ends, after the anchor implant is positioned in the bone hole. The free suture ends are wrapped about a suture cleat on an inserter handle once the desired tension level is achieved. A proximal anchor component is moved distally to engage with a distal anchor component to lock the anchor in place within the bone hole, and to lock the suture in place within the anchor. Then, the inserter is removed from the procedural site. ## Claims ### Claim 1 (canceled) ### Claim 2 An anchoring system for securing suture to bone, comprising: an implant including an external surface and a distal tip, the distal tip including a suture securing portion structured to enable a suture to pass through the suture securing portion from one side to the opposite side, the external surface including external surface features for securing the implant within surrounding bone and a suture channel for permitting the suture to slide freely along the external surface for tissue tensioning; a proximal member which is movable distally to engage the distal tip and to fix the suture in place within the implant and relative to the bone; and an inserter which is removably engageable with a proximal end of the implant. ### Claim 3 (depends on 2) The anchoring system as recited in claim 2, wherein the suture securing portion comprises a suture eyelet. ### Claim 4 (depends on 2) The anchoring system as recited in claim 2, wherein the proximal member comprises a screw member. ### Claim 5 (depends on 4) The anchoring system as recited in claim 4, wherein the implant includes a threaded internal surface structured to engage with a threaded external surface of the screw member. ### Claim 6 (depends on 2) The anchoring system as recited in claim 2, wherein the inserter includes a handle portion disposed at a proximal end thereof. ### Claim 7 (depends on 6) The anchoring system as recited in claim 6, wherein the handle portion includes a knob which is actuatable to engage the proximal member to the distal tip of the implant. ### Claim 8 (depends on 2) The anchoring system as recited in claim 2, wherein the external surface features comprise ribs. ### Claim 9 (depends on 8) The anchoring system as recited in claim 8, wherein the ribs are triangular-shaped. ### Claim 10 (depends on 2) The anchoring system as recited in claim 2, wherein the inserter includes a plurality of suture cleats. ### Claim 11 (depends on 2) The anchoring system as recited in claim 2, wherein the proximal member is comprised of a biocompatible material. ### Claim 12 (depends on 11) The anchoring system as recited in claim 11, wherein the biocompatible material comprises PEEK. ### Claim 13 (depends on 2) The anchoring system as recited in claim 2, wherein the implant includes internal surface texturing for improving suture retention after fixation. ### Claim 14 (depends on 13) The anchoring system as recited in claim 13, wherein the internal surface texturing comprises spikes or knurling. ### Claim 15 (depends on 2) The anchoring system as recited in claim 2, wherein the inserter includes a handle portion and an engagement tube, the engagement tube structured to engage with a proximal end of the proximal member. ### Claim 16 (depends on 15) The anchoring system as recited in claim 15, wherein the engagement tube is rotatable relative to the handle portion, ### Claim 17 An anchoring system for securing suture to bone, comprising: a distal member including an external surface and a suture securing portion structured to enable a suture to pass through the suture securing portion from one side to the opposite side, the external surface including one or more external surface features for securing the distal member within surrounding bone and a suture channel for permitting the suture to slide along the external surface for tissue tensioning; a proximal member configured to engage the distal member, the proximal member being movable distally to fix the suture in place within the distal member and relative to the bone; and an inserter configured to removably engage with a proximal end of the distal member. ### Claim 18 (depends on 17) The anchoring system as recited in claim 17, wherein the distal member includes a distal tip portion, and wherein the suture securing portion is located at the distal tip portion. ### Claim 19 (depends on 18) The anchoring system as recited in claim 18, wherein the suture securing portion comprises a suture eyelet. ### Claim 20 (depends on 17) The anchoring system as recited in claim 17, wherein the distal member includes a threaded internal surface structured to engage with a threaded external surface of the proximal member. ### Claim 21 An anchor for securing suture to bone, comprising: an implant including an external surface and a distal tip, the distal tip including a suture securing portion structured to enable a suture to pass through the suture securing portion from one side to the opposite side, the external surface including one or more external surface features for securing the implant within surrounding bone and a suture channel for permitting the suture to slide along the external surface for tissue tensioning; and a proximal member which is movable distally to engage the distal tip and to fix the suture in place within the implant and relative to the bone.