US 12,213,692 B2
Treatment tool for endoscope
Yoshihiro Ueda, Kanagawa (JP); Keiichiro Takahashi, Kanagawa (JP); and Jun Sato, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Feb. 7, 2022, as Appl. No. 17/665,729.
Application 17/665,729 is a continuation of application No. PCT/JP2020/033686, filed on Sep. 4, 2020.
Claims priority of provisional application 63/064,899, filed on Aug. 12, 2020.
Claims priority of provisional application 62/896,579, filed on Sep. 6, 2019.
Prior Publication US 2022/0151651 A1, May 19, 2022
Int. Cl. A61B 17/29 (2006.01)
CPC A61B 17/2909 (2013.01) [A61B 2017/2905 (2013.01); A61B 2017/2916 (2013.01); A61B 2017/2946 (2013.01)] 8 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 movable in a first direction parallel to a longitudinal axis of the insertion part and a second direction orthogonal to the first direction,
the transmitting part has
a follower member that is movable only in the first direction among the first direction and the second direction,
a cam member that is movable only in the second direction among the first direction and the second direction and drives the follower member in the first direction in response to a movement of the cam member in the second direction,
a first transmitting member that extends from the operating member to the insertion part, and
a second transmitting member that extends from the follower member to the insertion part,
the operating member and the cam member have engaging parts respectively that allow a relative movement in the first direction and prevent a relative movement in the second direction by engaging with each other,
the grip part is closed as one of the first transmitting member or the second transmitting member is moved in the first direction, and
the bendable part is bent as other of the first transmitting member or the second transmitting member is moved in the first direction.