US 12,465,202 B2
Endoscope comprising a bending section having displaced steering wire lumens
Troels Nicolaj Qvist, Roskilde (DK); Frederik Clausager Vemb Hansen, Copenhagen (DK); and Martin Refslund Nielsen, Birkerød (DK)
Assigned to AMBU A/S, Ballerup (DK)
Filed by AMBU A/S, Ballerup (DK)
Filed on Feb. 22, 2023, as Appl. No. 18/112,711.
Claims priority of application No. 22158201 (EP), filed on Feb. 23, 2022.
Prior Publication US 2023/0263375 A1, Aug. 24, 2023
Int. Cl. A61B 1/005 (2006.01); A61B 1/00 (2006.01); A61B 1/008 (2006.01); A61B 1/018 (2006.01)
CPC A61B 1/0055 (2013.01) [A61B 1/00045 (2013.01); A61B 1/00114 (2013.01); A61B 1/0056 (2013.01); A61B 1/008 (2013.01); A61B 1/018 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An endoscope comprising:
a handle;
an insertion cord extending from the handle, the insertion cord comprising an insertion tube and a bending section having a bending section body; and
a working channel tube;
a first steering wire portion;
a second steering wire portion;
the bending section body comprising segments and hinges keeping together, and formed integrally with, the segments, the bending section body having a center axis and a center plane traversing the center axis, the center plane dividing the bending section into a first bending section side and a second bending section side, and the segments comprising:
passages that together form a working channel lumen, the working channel lumen having a non-circular cross-section and the working channel tube positioned, at least in part, in the working channel lumen;
first steering wire lumens configured to accommodate the first steering wire portion, the first steering wire lumens displaced with respect to the center plane towards the first side; and
second steering wire lumens configured to accommodate the second steering wire portion, the second steering wire lumens displaced with respect to the center plane towards the first side,
wherein the first steering wire lumens are aligned along a first axis and the second steering wire lumens are aligned along a second axis, a steering wire passage plane traversing the first axis and the second axis, the steering wire passage plane being parallel to and displaced from the center plane, and
wherein the steering wire passage plane is displaced from the center plane by a distance (d) which is greater than or equal to 0.2 mm.