US 11,805,979 B2
Endoscope conduit switching device and endoscope
Kazuya Saiga, Hachioji (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Nov. 10, 2020, as Appl. No. 17/094,123.
Application 17/094,123 is a continuation of application No. PCT/JP2019/019985, filed on May 20, 2019.
Claims priority of application No. 2018-097355 (JP), filed on May 21, 2018.
Prior Publication US 2021/0068780 A1, Mar. 11, 2021
Int. Cl. A61B 1/00 (2006.01); A61B 8/12 (2006.01); A61B 8/00 (2006.01); A61B 1/04 (2006.01); A61M 25/10 (2013.01); A61B 1/06 (2006.01)
CPC A61B 1/00068 (2013.01) [A61B 1/04 (2013.01); A61B 1/06 (2013.01); A61B 8/12 (2013.01); A61B 8/445 (2013.01); A61M 25/10181 (2013.11)] 14 Claims
OG exemplary drawing
 
1. An endoscope conduit switching device comprising:
an attachment body extending in a longitudinal direction, the attachment body configured to be attached to an endoscope;
a shaft inserted into the attachment body, the shaft extending in the longitudinal direction;
a cap fixed to one end of the shaft;
a piston movably disposed relative to each of the attachment body and the shaft, the piston comprising:
a first piston portion having a rib; and
a second piston portion having a rib receiver groove into which the rib is inserted; and
an elastic material configured to bias the piston and the cap away from each other in the longitudinal direction,
wherein the rib is fixed in the rib receiver groove by adhering at least a portion of the rib to a corresponding portion of the rib receiving groove.