US 11,986,153 B2
Insertion assist device for endoscope and endoscope system
Yuji Sakai, Kodaira (JP); and Tetsuhide Takeyama, Hachioji (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Sep. 18, 2020, as Appl. No. 17/024,777.
Application 17/024,777 is a continuation of application No. PCT/JP2018/039492, filed on Oct. 24, 2018.
Claims priority of application No. 2018-051242 (JP), filed on Mar. 19, 2018.
Prior Publication US 2021/0000333 A1, Jan. 7, 2021
Int. Cl. A61B 1/00 (2006.01); A61B 1/01 (2006.01); A61B 1/015 (2006.01); A61B 1/233 (2006.01); A61M 31/00 (2006.01); A61M 39/22 (2006.01)
CPC A61B 1/00154 (2013.01) [A61B 1/00066 (2013.01); A61B 1/00087 (2013.01); A61B 1/00121 (2013.01); A61B 1/00128 (2013.01); A61B 1/00131 (2013.01); A61B 1/00135 (2013.01); A61B 1/0014 (2013.01); A61B 1/00147 (2013.01); A61B 1/015 (2013.01); A61B 1/233 (2013.01); A61M 31/00 (2013.01); A61M 39/22 (2013.01); A61B 1/01 (2013.01); A61M 2210/0681 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An insertion assist device comprising:
a grip comprising a channel, the channel being configured to receive an insertion portion of an endoscope;
a lever configured to advance the insertion portion by moving distally relative to the grip, and the lever being configured to retreat the insertion portion by moving proximally relative to the grip;
a liquid container having a closed end, the container being provided on an interior of the grip and configured to store a liquid; and
a tubular sheath provided on an exterior of the insertion portion of the endoscope, the tubular sheath being connected to the liquid container at a first end of the tubular sheath, and configured to guide the liquid toward a second end of the tubular sheath, the second end being opposite to the first end;
wherein the grip includes a pair of open ends each formed along a longitudinal axis of the channel, and the pair of open ends are deformable between a closed state in which the pair of open ends are configured to prevent the endoscope from being inserted into or removed from the channel and an open state in which the pair of open ends are separated from each other to allow the endoscope to be inserted into or removed from the channel.