# US 11,998,295 B2 · Instrument for surgery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,295 B2 - Document ID: US11998295B2 - Status: Granted - Kind: B2 - Application number: 17/959,140 - Filed: 2022-10-03 - Published: 2023-01-26 - Granted: 2024-06-04 - Earliest claimed: 2015-02-17 - Assignees: Livsmed Inc. - Applicants: Livsmed Inc. - Inventors: Jung Joo Lee; Hee Jin Kim - Web page: https://patentgrep.com/patent/US11998295B2 ## CPC - A61B 34/71: {Manipulators operated by drive cable mechanisms} - A61B 17/00234: {for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)} - A61B 17/2909: {Handles} - A61B 2017/00323: {Cables or rods} - A61B 2017/00424: {ergonomic, e.g. fitting in fist} - A61B 2017/00438: {connectable to a finger} - A61B 2017/00477: {Coupling (A61B2017/0046 takes precedence)} - A61B 2017/00738: {part of the tool being offset with respect to a main axis, e.g. for better view for the surgeon} - A61B 2017/2904: {curved, but rigid} - A61B 2017/2908: {Multiple segments connected by articulations} - A61B 2017/291: {the position of the handle being adjustable with respect to the shaft} - A61B 2017/2911: {rings} - A61B 2017/2923: {Toothed members, e.g. rack and pinion} - A61B 2017/294: {Connection of actuating rod to jaw, e.g. releasable} - A61B 2017/2944: {Translation of jaw members} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract Provided is an instrument for surgery and, more specifically, to an instrument for surgery which can be manually operated in order to be used for laparoscopic surgery or various types of surgery. ## Claims ### Claim 1 An end tool of a surgical instrument, comprising: a first jaw and a second jaw configured to rotate independently; a J11 pulley coupled to the first jaw and configured to be rotate around a first axis formed at an end tool hub; a J16 pulley formed at one side of the J11 pulley and configured to rotate around a second axis formed at one side of the first axis; a J12 pulley and a J14 pulley formed at one side of the J16 pulley, and configured to rotate around a third axis formed at a predetermined angle with the first axis and formed at one side of the end tool hub; a J21 pulley coupled to the second jaw and configured to rotate around an axis that is substantially identical to or parallel to the first axis; a J26 pulley formed at one side of the J21 pulley and configured to rotate around an axis that is substantially identical to or parallel to the second axis; and a J22 pulley and a J24 pulley formed at one side of the J26 pulley and configured to rotate around an axis that is substantially identical to or parallel to the third axis, wherein, based on a first plane perpendicular to the first axis and passing between the J11 pulley and the J21 pulley, two strands of a first jaw wire coupled to the J11 pulley contact one side from among an upper side and a lower side of the J12 pulley and J14 pulley, and two strands of a second jaw wire coupled to the J21 pulley contact one side from among the upper side and the lower side of the J22 pulley and J24 pulley, which is different from the one side from among the upper side and the lower side of the J12 pulley and J14 pulley. ### Claim 2 (depends on 1) The end tool of claim 1, wherein the first jaw wire is configured to at least partially contact the J12 pulley, J11 pulley, J16 pulley, and J14 pulley; and the second jaw wire is configured to at least partially contact the J22 pulley, J21 pulley, J26 pulley, and J24 pulley. ### Claim 3 (depends on 1) The end tool of claim 1, wherein the two strands of the first jaw wire wound around the J11 pulley are arranged, by the J16 pulley, at one side based on a plane perpendicular to the third axis and passing through the first axis, and the two strands of the second jaw wire wound around the J21 pulley are arranged, by the J26 pulley, at the other side based on the plane perpendicular to the third axis and passing through the first axis. ### Claim 4 (depends on 1) The end tool of claim 1, wherein the J16 pulley is arranged at an opposite side of the first jaw and the second jaw based on the J11 pulley, and the J26 pulley is arranged at an opposite side of the first jaw and the second jaw based on the J21 pulley. ### Claim 5 (depends on 1) The end tool of claim 1, wherein the first jaw wire is fixedly coupled to the J11 pulley, and the second jaw wire is fixedly coupled to the J21 pulley. ### Claim 6 (depends on 1) The end tool of claim 1, wherein a diameter of the J16 pulley is smaller than a diameter of the J11 pulley, and a diameter of the J26 pulley is smaller than a diameter of the J21 pulley. ### Claim 7 (depends on 1) The end tool of claim 1, wherein a connector hub is configured to rotate around the third axis with respect to the end tool hub at one side of the end tool hub, and the J12 pulley, J14 pulley, J22 pulley, and J24 pulley are formed on a common axis of the end tool hub and the connector hub. ### Claim 8 (depends on 7) The end tool of claim 7, wherein at the connector hub, a J13 pulley and a J15 pulley are configured to rotate around an axis substantially parallel to the third axis, and a J23 pulley and a J25 pulley are configured to rotate around the axis substantially parallel to the third axis. ### Claim 9 (depends on 8) The end tool of claim 8, wherein the first jaw wire is configured to pass between the J12 pulley and the J13 pulley, and the second jaw wire is configured to pass between the J22 pulley and the J23 pulley. ### Claim 10 (depends on 7) The end tool of claim 7, wherein, based on the first plane, one strand of the first jaw wire from among the two strands of the first jaw wire coupled to the J11 pulley sequentially contacts a lower side of the J12 pulley and an upper side of the J13 pulley, and the other strand of the first jaw wire from among the two strands of the first jaw wire coupled to the J11 pulley sequentially contacts a lower side of the J14 pulley and an upper side of the J15 pulley. ### Claim 11 (depends on 7) The end tool of claim 7, wherein, based on the first plane, one strand of the second jaw wire from among the two strands of the second jaw wire coupled to the J21 pulley sequentially contacts an upper side of the J22 pulley and a lower side of the J23 pulley, and the other strand of the second jaw wire from among the two strands of the second jaw wire coupled to the J21 pulley sequentially contacts an upper side of the J24 pulley and a lower side of the J25 pulley. ### Claim 12 (depends on 1) The end tool of claim 1, wherein, with respect to the first jaw wire or the second jaw wire, a pitch motion of the end tool is performed when both sides of a wire wound around the end tool is pulled. ### Claim 13 (depends on 1) The end tool of claim 1, wherein, with respect to the first jaw wire or the second jaw wire, a yaw motion or an actuation motion of the end tool is performed when one side of a wire wound around the end tool is pulled and the other side is pushed. ### Claim 14 (depends on 1) The end tool of claim 1, wherein both strands of the first jaw wire wound around the J11 pulley are arranged at a same side with respect to the second axis, and both strands of the second jaw wire wound around the J21 pulley are arranged at a same side with respect to the second axis. ### Claim 15 (depends on 1) The end tool of claim 1, wherein any one side of the first jaw wire wound around the J11 pulley is configured to pass between the J11 pulley and the J16 pulley, and any one side of the second jaw wire wound around the J21 pulley is configured to pass between the J21 pulley and the J26 pulley. ### Claim 16 (depends on 1) The end tool of claim 1, wherein the first jaw wire is located on an internal tangent of the J11 pulley and the J16 pulley, and a rotation angle of the J11 pulley is increased by the J16 pulley, and the second jaw wire is located on an internal tangent of the J21 pulley and the J26 pulley, and a rotation angle of the J21 pulley is increased by the J26 pulley. ### Claim 17 (depends on 1) The end tool of claim 1, wherein the J12 pulley and the J14 pulley are arranged at one side based on a plane perpendicular to the third axis and passing through the first axis, and the J22 pulley and the J24 pulley are arranged at the other side based on the plane perpendicular to the third axis and passing through the first axis. ### Claim 18 (depends on 1) The end tool of claim 1, wherein the first jaw wire and the J11 pulley are fixedly coupled by a coupler, and the first jaw wire is configured to be located on an internal tangent of the J11 pulley and the J16 pulley such that a rotation angle of the coupler is increased. ### Claim 19 (depends on 18) The end tool of claim 18, wherein the coupler of the first jaw wire and the J11 pulley is rotatable until the coupler is located on an internal common tangent of the J11 pulley and the J16 pulley. ### Claim 20 (depends on 1) The end tool of claim 1, wherein, from a proximal portion to a distal portion of the end tool, the two strands of the first jaw wire coupled to the J11 pulley are wound around the J12 pulley and the J14 pulley in a first direction from among a clockwise direction and a counterclockwise direction, and the two strands of the second jaw wire coupled to the J21 pulley are wound around the J22 pulley and the J24 pulley in a direction different from the first direction.