US 12,458,432 B2
Surgical instrument for surgical assist robot
Kyohei Takikawa, Tokyo (JP)
Assigned to RIVERFIELD INC., Tokyo (JP)
Appl. No. 17/434,950
Filed by RIVERFIELD INC., Tokyo (JP)
PCT Filed Jan. 31, 2020, PCT No. PCT/JP2020/003778
§ 371(c)(1), (2) Date Aug. 30, 2021,
PCT Pub. No. WO2020/179311, PCT Pub. Date Sep. 10, 2020.
Claims priority of application No. 2019-037652 (JP), filed on Mar. 1, 2019.
Prior Publication US 2022/0142700 A1, May 12, 2022
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01); A61B 34/30 (2016.01); B25J 9/10 (2006.01); B25J 17/02 (2006.01); B25J 19/00 (2006.01); H01B 9/00 (2006.01); A61B 18/00 (2006.01)
CPC A61B 18/1445 (2013.01) [A61B 34/30 (2016.02); B25J 9/104 (2013.01); B25J 17/02 (2013.01); B25J 19/0029 (2013.01); H01B 9/003 (2013.01); A61B 2018/00077 (2013.01); A61B 2018/00083 (2013.01); A61B 2018/00601 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A surgical instrument for a surgical assist robot, the surgical instrument comprising:
a cable member having conductivity and formed into a cable-like shape;
an outer shell having a shape covering a circumference of the cable member and having conductivity;
a first insulating portion arranged in at least a part of a space between the cable member and the outer shell, wherein the first insulating portion is made of a material having a higher insulation property than a material of the cable member and a material of the outer shell;
a second insulating portion arranged at a position, which exists between the cable member and the outer shell and which is adjacent to the first insulating portion, wherein the second insulating portion is made of a material having a higher insulation property than the material of the cable member and the material of the outer shell;
a projecting portion projecting from a projecting insulating portion, which is one of the first insulating portion and the second insulating portion, toward a recessed insulating portion, which is the other of the first insulating portion and the second insulating portion, wherein the cable member is inserted into the projecting portion;
a recessed portion formed in the recessed insulating portion, wherein the projecting portion is inserted into the recessed portion;
a leading end portion arranged to be separated from the recessed insulating portion and the outer shell, wherein the leading end portion has conductivity and is bendable using tension of the cable member, of which an end portion is connected to the leading end portion; and
a power supply cable, which is a member having a cable-like shape and which is arranged inside the first insulating portion and the second insulating portion, for supplying an electric power from an outside of the surgical instrument to the leading end portion,
wherein the first insulating portion comprises a region, on a leading end portion side, forming an outer wall of the surgical instrument and a region, on an opposite side of the leading end portion side, arranged inside the outer shell.