US 12,453,569 B2
Treatment tool for endoscope
Yoshihiro Ueda, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Feb. 7, 2022, as Appl. No. 17/665,716.
Application 17/665,716 is a continuation of application No. PCT/JP2020/033685, filed on Sep. 4, 2020.
Claims priority of provisional application 63/067,295, filed on Aug. 18, 2020.
Claims priority of provisional application 62/896,581, filed on Sep. 6, 2019.
Prior Publication US 2022/0151650 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 17/29 (2006.01)
CPC A61B 17/2909 (2013.01) [A61B 2017/2905 (2013.01); A61B 2017/2912 (2013.01); A61B 2017/2946 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A treatment tool for an endoscope comprising:
an insertion part that has a distal end part, which is provided with an openable and closable grip part, and a bendable part, which is provided adjacent to the distal end part and is bendable, and that is insertable into a body;
an operating part into which an operation of closing the grip part and an operation of bending the bendable part are input; and
a transmitting part that transmits the operations of the operating part to the grip part and the bendable part,
wherein the operating part has an operating member that is rotatable about a first rotation axis and is translatable along the first rotation axis,
the transmitting part has
a transmitting member that extends from the operating member to the insertion part and is capable of transmitting a rotation and translation of the operating member,
a first member that is rotatable about a second rotation axis matching a central axis of the insertion part, is translatable along the second rotation axis, and is connected to a distal end part of the transmitting member so that the first member is provided between the transmitting member and the bendable part, and
a second member that is rotatable about the second rotation axis and is not translatable along the second rotation axis,
the first member has an engaging part and the second member has an engaging part, and the engaging part of the first member and the engaging part of the second member are engaged with each other, thereby allowing a translation of the first member along the second rotation axis relative to the second member and preventing a relative rotation between the first member and the second member about the second rotation axis,
the grip part is configured to be capable of being closed based on one of translation of the first member or a rotation of the second member, and
the bendable part is configured to be capable of being bent based on other of the translation of the first member or the rotation of the second member.