# US 11,896,337 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 11,896,337 B2 - Document ID: US11896337B2 - Status: Granted - Kind: B2 - Application number: 17/739,591 - Filed: 2022-05-09 - Published: 2022-09-01 - Granted: 2024-02-13 - Earliest claimed: 2015-02-17 - Assignees: Livsmed Inc. - Applicants: Livsmed Inc. - Inventors: Jung Joo Lee; Hee Jin Kim - Web page: https://patentgrep.com/patent/US11896337B2 ## 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 18/1445: {at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod} - 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 2017/2944: {Translation of jaw members} - A61B 2018/00083: {low, i.e. electrically insulating} - 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 instrument for surgery comprising: an end tool comprising at least one jaw, and an end tool jaw pulley coupled to the at least one jaw and configured to rotate around a jaw rotation shaft, the end tool configured to rotate in at least one directions; a manipulation part configured to control rotation of the end tool in the at least one direction, the manipulation part comprising a yaw manipulation part configured to control a yaw motion of the end tool, the yaw manipulation part comprising a manipulation part yaw pulley configured to rotate around a yaw rotation shaft; a power transmission part connected to the manipulation part, the power transmission part comprising at least one jaw wire configured to transmit rotation of the manipulation part to the at least one jaw; and a connecting part extending in a first direction (X axis), the connecting part being coupled to the end tool at an end portion thereof and coupled to the manipulation part at another end portion thereof so as to connect the manipulation part to the end tool, wherein the end tool jaw pulley and the manipulation part yaw pulley have different diameters. ### Claim 2 (depends on 1) The instrument of claim 1, wherein the diameter of the end tool jaw pulley is smaller than the diameter of the manipulation part yaw pulley. ### Claim 3 (depends on 2) The instrument of claim 2, wherein the ratio of the diameter of the end tool jaw pulley to the diameter of the manipulation part yaw pulley is greater than or equal to (1:1.5) and less than or equal to (1:4.5). ### Claim 4 (depends on 1) The instrument of claim 1, wherein the end tool jaw pulley and the manipulation part yaw pulley are connected through the at least one jaw wire, and the rotation angle of the manipulation part yaw pulley and the rotation angle of the end tool jaw pulley when the at least one jaw wire moves are different. ### Claim 5 (depends on 4) The instrument of claim 4, wherein the rotation angle of the end tool jaw pulley is greater than the rotation angle of the manipulation part yaw pulley. ### Claim 6 (depends on 5) The instrument of claim 5, wherein the ratio of the rotation angle of the manipulation part yaw pulley to the rotation angle of the end tool jaw pulley is greater than or equal to (1:1.5) and less than or equal to (1:4.5). ### Claim 7 (depends on 1) The instrument of claim 1, wherein the end tool comprises a first jaw and a second jaw, and the manipulation part further comprises an actuation manipulation part provided at a side of the yaw manipulation part and configured to control an actuation motion of the end tool, the actuation manipulation part comprising manipulation part actuation pulley configured to rotate around an actuation rotation shaft. ### Claim 8 (depends on 7) The instrument of claim 7, wherein the diameter of the end tool jaw pulley is less than the diameter of the manipulation part actuation pulley. ### Claim 9 (depends on 8) The instrument of claim 8, wherein the ratio of the diameter of the end tool jaw pulley to the diameter of the manipulation part actuation pulley is greater than or equal to (1:1.5) and less than or equal to (1:4.5). ### Claim 10 (depends on 7) The instrument of claim 7, wherein the end tool jaw pulley and the manipulation part actuation pulley are connected through the at least one jaw wire, and the rotation angle of the manipulation part actuation pulley and the rotation angle of the end tool jaw pulley when the at least one jaw wire moves are different. ### Claim 11 (depends on 10) The instrument of claim 10, wherein the rotation angle of the end tool jaw pulley is greater than the rotation angle of the manipulation part actuation pulley. ### Claim 12 (depends on 11) The instrument of claim 11, wherein the ratio of the rotation angle of the manipulation part actuation pulley to the rotation angle of the end tool jaw pulley is greater than or equal to (1:1.5) and less than or equal to (1:4.5). ### Claim 13 (depends on 1) The instrument of claim 1, wherein the manipulation part further comprising a first handle, and the yaw manipulation part is directly connected to the first handle. ### Claim 14 (depends on 1) The instrument of claim 1, wherein the connecting part comprises a bent part connecting the end tool to the manipulation part and being bent at least once. ### Claim 15 An instrument for surgery comprising: an end tool comprising at least one jaw, and an end tool pitch pulley provided at a side of the jaw and configured to rotate around an end tool pitch rotation shaft, the end tool configured to rotate in at least one directions; a manipulation part configured to control rotation of the end tool in the at least one direction, the manipulation part comprising a pitch manipulation part configured to control a pitch motion of the end tool, the pitch manipulation part comprising a manipulation part pitch pulley configured to rotate around a pitch rotation shaft; a power transmission part connected to the manipulation part, the power transmission part comprising at least one jaw wire configured to transmit rotation of the manipulation part to the at least one jaw; and a connecting part extending in a first direction (X axis), the connecting part being coupled to the end tool at an end portion thereof and coupled to the manipulation part at another end portion thereof so as to connect the manipulation part to the end tool, wherein the end tool pitch pulley and the manipulation part pitch pulley have different diameters. ### Claim 16 (depends on 15) The instrument of claim 15, wherein the diameter of the end tool pitch pulley is smaller than the diameter of the manipulation part pitch pulley. ### Claim 17 (depends on 16) The instrument of claim 16, wherein the ratio of the diameter of the end tool pitch pulley to the diameter of the manipulation part pitch pulley is greater than or equal to (1:1.5) and less than or equal to (1:4.5). ### Claim 18 (depends on 15) The instrument of claim 15, wherein the end tool pitch pulley and the manipulation part pitch pulley are connected through the at least one jaw wire, and the rotation angle of the manipulation part pitch pulley and the rotation angle of the end tool pitch pulley when the at least one jaw wire moves are different. ### Claim 19 (depends on 18) The instrument of claim 18, wherein the rotation angle of the end tool pitch pulley is greater than the rotation angle of the manipulation part pitch pulley. ### Claim 20 (depends on 19) The instrument of claim 19, wherein the ratio of the rotation angle of the manipulation part pitch pulley to the rotation angle of the end tool pitch pulley is greater than or equal to (1:1.5) and less thana or equal to (1:4.5).