# US 11,896,214 B2 · Suture based closure device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,214 B2 - Document ID: US11896214B2 - Status: Granted - Kind: B2 - Application number: 17/217,224 - Filed: 2021-03-30 - Published: 2021-09-30 - Granted: 2024-02-13 - Earliest claimed: 2020-03-31 - Assignees: Boston Scientific Scimed, Inc. - Applicants: Boston Scientific Scimed, Inc. - Inventors: Kevin L. Bagley - Web page: https://patentgrep.com/patent/US11896214B2 ## CPC - A61B 17/0469: {Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery} - A61B 17/0482: {Needle or suture guides (guides for drills, pins or wire A61B17/17; guides for puncturing needles A61B17/3403)} - A61B 17/06061: {Holders for needles or sutures, e.g. racks, stands (hand-held holding instruments A61B17/0483; holders for articles A61B50/20; racks for syringes or for hypodermic or infusion needles A61M5/008)} - A61B 17/062: Needle manipulators - A61B 17/0625: {the needle being specially adapted to interact with the manipulator, e.g. being ridged to snap fit in a hole of the manipulator (A61B17/06109 takes precedence)} - A61B 2017/00296: {mounted on an endoscope} - A61B 2017/06047: {located at the middle of the needle} - A61B 2017/0608: {J-shaped} - A61B 2017/0609: {having sharp tips at both ends, e.g. shuttle needle alternately retained and released by first and second facing jaws of a suturing instrument} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A suture device includes a suture ring that defines an arcuate channel extending therein. A first arcuate needle passer is slidingly disposed within a first side of the arcuate channel and a second arcuate needle passer is slidingly disposed within a second side of the arcuate channel. An arcuate needle is passable between the first arcuate needle passer and the second arcuate needle passer and includes a first latching feature adapted to releasably secure the arcuate needle to the first arcuate needle passer and a second latching feature adapted to releasably secure the arcuate needle to the second arcuate needle passer. ## Claims ### Claim 1 A suture device comprising: a mounting structure adapted to be secured relative to a distal end of an endoscope; a suture ring secured relative to the mounting structure, the suture ring defining an arcuate channel extending within the suture ring; a first arcuate needle passer slidingly disposed within a first side of the arcuate channel, the first arcuate needle pass including a working end and a control end; a second arcuate needle passer slidingly disposed within a second side of the arcuate channel, the second arcuate needle passer including a working end and a control end; a first control element operably coupled to the control end of the first arcuate needle passer; a second control element operably coupled to the control end of the second arcuate needle passer; wherein the first control element and the second control element cross over each other upon entering the arcuate channel of the suture ring; and an arcuate needle releasably securable to the first arcuate needle passer. ### Claim 2 (depends on 1) The suture device of claim 1, wherein the arcuate needle is passable between the first arcuate needle passer and the second arcuate needle passer and includes a first latching feature adapted to releasably secure the arcuate needle to the first arcuate needle passer and a second latching feature adapted to releasably secure the arcuate needle to the second arcuate needle passer. ### Claim 3 (depends on 2) The suture device of claim 2, wherein the first latching feature comprises a first pair of radially spaced protrusions disposed within a first portion of the arcuate needle and the second latching feature comprises a second pair of radially spaced protrusions disposed within a second portion of the arcuate needle. ### Claim 4 (depends on 2) The suture device of claim 2, wherein the arcuate needle further comprises a suture aperture disposed between the first latching feature and the second latching feature. ### Claim 5 (depends on 3) The suture device of claim 3, wherein the first needle passer comprises a first aperture complementary to a first protrusion of the first pair of protrusions and a second aperture complementary to a second protrusion of the first pair of protrusions. ### Claim 6 (depends on 5) The suture device of claim 5, wherein the first arcuate needle passer comprises a first pair of longitudinally aligned slots extending from the working end and towards the control end of the first arcuate needle passer, each of the first pair of longitudinally aligned slots extending through one of the first aperture and the second aperture such that the first arcuate needle passer is able to flex relative to the first aperture and the second aperture when not constrained by the first side of the arcuate suture ring. ### Claim 7 (depends on 3) The suture device of claim 3, wherein the second arcuate needle passer comprises a first aperture complementary to a first protrusion of the second pair of protrusions and a second aperture complementary to a second protrusion of the second pair of protrusions. ### Claim 8 (depends on 7) The suture device of claim 7, wherein the second arcuate needle passer comprises a second pair of longitudinally aligned slots extending from the working end and towards the control end of the second arcuate needle passer, each of the second pair of longitudinally aligned slots extending through one of the first aperture and the second aperture such that the second arcuate needle passer is able to flex relative to the first aperture and the second aperture when not constrained by the second side of the arcuate suture ring. ### Claim 9 (depends on 1) The suture device of claim 1, wherein the suture ring extends in a circle from a first open end to a second open end, the first open end and the second open end spaced apart a distance that permits tissue to extend therebetween. ### Claim 10 (depends on 9) The suture device of claim 9, wherein the annular channel has a circular cross-sectional profile except for a first region proximate the first open end and a second region proximate the second open end. ### Claim 11 (depends on 10) The suture device of claim 10, wherein the first region and the second region each have an ovoid cross-sectional profile that allows the first arcuate needle passer and/or the second needle passer to begin to flex as the first arcuate needle passer exits the first open end and/or the second arcuate needle passer exits the second open end. ### Claim 12 (depends on 1) The suture device of claim 1, wherein the first control element enters the first side of the arcuate channel substantially parallel to a tangent of the first arcuate needle passer proximate where the first control element is secured to the first arcuate needle passer. ### Claim 13 (depends on 1) The suture device of claim 1, wherein the second control element enters the second side of the arcuate channel substantially parallel to a tangent of the second arcuate needle passer proximate where the second control element is secured to the second arcuate needle passer. ### Claim 14 (depends on 2) The suture device of claim 2, further comprising a first tubular member housing the first control element and a second tubular member housing the second control element. ### Claim 15 A suture device adapted to be used in combination with an endoscope, the suture device comprising: a suture ring having a first side and a second side, and defining an arcuate channel extending within the suture ring; a first tubular member comprising a curved distal portion that curves in a direction opposed to a direction of curvature of the first side of the suture ring; a second tubular member comprising a curved distal portion that curves in a direction opposed to a direction of curvature of the second side of the suture ring; a first arcuate needle passer slidingly disposed within a first side of the arcuate channel, a second arcuate needle passer slidingly disposed within a second side of the arcuate channel; a first control element disposed within the first tubular member and operably coupled to the first arcuate needle passer; a second control element disposed within the second tubular member and operably coupled to the second arcuate needle passer; and an arcuate needle passable between the first arcuate needle passer and the second arcuate needle passer by manipulating the first control element and the second control element; wherein the first control element and the second control element cross over each other upon entering the arcuate channel of the suture ring. ### Claim 16 (depends on 15) The suture device of claim 15, wherein the first needle passer comprises a working end adapted to releasably secure the arcuate needle. ### Claim 17 (depends on 16) The suture device of claim 16, wherein the first arcuate needle passer comprises a first pair of longitudinally aligned slots extending through the working end of the first needle passer such that the working end of the first needle passer is able to flex when not constrained by the first side of the arcuate suture ring. ### Claim 18 (depends on 15) The suture device of claim 15, wherein the second arcuate needle passer comprises a working end adapted to releasably secure the arcuate needle. ### Claim 19 (depends on 18) The suture device of claim 18, wherein the second arcuate needle passer comprises a second pair of longitudinally aligned slots extending through the working end of the second arcuate needle passer such that the working end of the second arcuate needle passer is able to flex when not constrained by the second side of the arcuate suture ring. ### Claim 20 A suture device adapted to be used in combination with an endoscope, the suture device comprising: an end cap ring adapted to be secured to a distal end of an endoscope; a C-shaped suture ring secured to the end cap ring, the C-shaped suture ring having a first side and a second side, and defining an arcuate channel extending within the suture ring; a first arcuate needle passer slidingly disposed within a first side of the arcuate channel, a second arcuate needle passer slidingly disposed within a second side of the arcuate channel; a first control element that is adapted to enter the first side of the arcuate channel substantially parallel to a tangent of the first needle passer proximate where the first control element is secured to the first needle passer; a second control element that is adapted to enter the second side of the arcuate channel substantially parallel to a tangent of the second needle passer proximate where the second control element is secured to the second needle passer; and an arcuate needle passable between the first arcuate needle passer and the second arcuate needle passer by manipulating the first control element and the second control element; wherein the first control element and the second control element cross over each other upon entering the arcuate channel of the C-shaped suture ring.