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US 2023/0414080 A1Published application
Endoscope with a bending section having a cut-out for a working channel
AssigneeAmbu A/S
InventorsThomas Bachgaard JENSEN, Kaspar MATTHISON-HANSEN
Life of this patent
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Abstract
A endoscope including a handle, a shaft and a distal tip unit. The shaft includes a bending section, a working channel and a steering wire for controlling a bending movement of the bending section. The bending section includes segments, flexible hinge members provided between adjacent segments, an inner lumen adapted for accommodating the working channel, and steering wire lumens adapted for accommodating the steering wire. The working channel is gradually/continuously/linearly guided away from a position close to a centerline of the endoscope shaft in the bending section.
Claims18
1-9. (canceled)
An endoscope comprising:
- a handle;
- a shaft connected to the handle and comprising a bending section, the bending section comprising segments including a proximal end segment, a distal end segment and intermediate segments between the proximal end segment and the distal end segment, the segments interconnected by hinge members, the bending section further comprising an outer periphery and an inner lumen;
- and
- a working channel tube defining at least a part of a working channel, the working channel tube extending from the handle through the shaft,
- wherein the inner lumen of the bending section has a radially outwardly extending working channel tube cut-out portion accommodating the working channel tube, a depth of the working channel tube cut-out portion measured from a central axis of the bending section to a radially outwardmost point on a periphery of the working channel tube cut-out portion, the depth gradually increasing along the bending section so that the working channel tube is positioned closer to the outer periphery in the distal end segment than in the proximal end segment.
2 more elements
An endoscope comprising:
- a handle;
- a shaft connected to the handle and comprising a bending section, the bending section comprising segments including a proximal end segment, a distal end segment and intermediate segments between the proximal end segment and the distal end segment, the segments interconnected by hinge members, the bending section further comprising an outer periphery and an inner lumen;
- and
- a working channel tube defining at least a part of a working channel, the working channel tube extending from the handle through the shaft,
- wherein the inner lumen of the bending section has a radially outwardly extending working channel tube cut-out portion accommodating the working channel tube, a depth of the working channel tube cut-out portion measured from a central axis of the bending section to a radially outwardmost point on a periphery of the working channel tube cut-out portion, the depth gradually increasing along the bending section so that the working channel tube is positioned closer to the outer periphery in the distal end segment than in the proximal end segment,
- wherein the bending section further comprises a first, a second, a third, and a four steering wire lumen, the first steering wire lumen positioned between the second steering wire lumen and the fourth steering wire lumen, the second steering wire lumen positioned between the first steering wire lumen and the third steering wire lumen, and the third steering wire lumen positioned between the second steering wire lumen and the fourth steering wire lumen,
- wherein the working channel tube cut-out portion extends between the first and the second steering wire lumens,
- wherein the working channel tube is arranged closer to the central axis of the bending section in the proximal end segment than in the distal end segment, and
- wherein the endoscope comprises additional tubes accommodated within the inner lumen.
6 more elements
Dependencies are inferred from the claim text.