US 12,408,818 B2
Endoscope comprising a flexible insertion tube and a bending portion
Anh Minh Do, Munich (DE)
Assigned to HOYA CORPORATION, Tokyo (JP)
Appl. No. 18/030,542
Filed by HOYA CORPORATION, Tokyo (JP)
PCT Filed Sep. 22, 2021, PCT No. PCT/IB2021/058622
§ 371(c)(1), (2) Date Apr. 6, 2023,
PCT Pub. No. WO2022/074491, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 10 2020 126 238.8 (DE), filed on Oct. 7, 2020.
Prior Publication US 2023/0371787 A1, Nov. 23, 2023
Int. Cl. A61B 1/00 (2006.01); A61B 1/005 (2006.01)
CPC A61B 1/00078 (2013.01) [A61B 1/00098 (2013.01); A61B 1/0055 (2013.01); A61B 1/0057 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An endoscope comprising:
a flexible insertion tube including:
an outer cover; and
an elastic wire mesh positioned beneath the outer cover;
a bending portion controllable from a proximal side, the bending portion being connected to a distal end of the insertion tube, wherein the bending portion has a sleeve with at least one pull rope extending therein for a pivoting movement of the bending portion, the at least one pull rope being anchored at a distal end of the bending portion; and
a divider arranged in a longitudinal direction of the sleeve, the divider dividing a cross-section of the sleeve into at least two separate chambers, the divider being anchored at a proximal side thereof to a distal end of the insertion tube, the proximal side of the divider being directly anchored to a distal end of the elastic wire mesh; and
wherein in one of the at least two chambers separated by the divider, the at least one pull rope is arranged in the longitudinal direction of the sleeve to provide for the pivoting movement of the bending portion.