Ultrasound endoscope
AssigneeOlympus Corporation
InventorNorihisa SUZUKI
Life of this patent
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Abstract
An ultrasound endoscope comprises an operation portion, an insertion portion coupled to the operation portion, a distal end portion coupled to the insertion portion and including a projecting portion and a distal end body portion, a balloon channel disposed inside the insertion portion and extending from the operation portion to the rigid distal end portion, and a balloon mounting portion between the projecting portion and the distal end body portion. The balloon channel includes a bending portion in the rigid distal end portion and a balloon outlet that is formed at the bending portion and connected to the balloon mounting portion. A cross section of the bending portion includes a first bending angle and a second bending angle, and the first bending angle is smaller than the second bending angle.
Claims20
An ultrasound endoscope, comprising:
- an operation portion for operating the ultrasound endoscope;
- an insertion tube coupled to the operation portion and to be inserted into a subject to be examined;
- a distal end portion coupled to the insertion tube and including a projecting portion and a distal end body portion;
- and
- at least one channel disposed inside the insertion tube and extending from the operation portion to the distal end portion;
- wherein the at least one channel includes a bending portion in the distal end portion, and a channel outlet that is formed at the bending portion and exposed outside the distal end portion, and
- wherein a cross section of the bending portion includes a first bending angle and a second bending angle, and the first bending angle is smaller than the second bending angle, such that the channel outlet is widened outwardly.
An balloon-assisted ultrasound endoscope, comprising:
- an operation portion for operating the ultrasound endoscope;
- an insertion portion coupled to the operation portion and to be inserted into a subject to be examined;
- a distal end portion coupled to the insertion portion and including a projecting portion and a distal end body portion;
- a balloon channel disposed inside the insertion portion and extending from the operation portion to the distal end portion;
- and
- a balloon mounting portion between the projecting portion and the distal end body portion and configured to mount a balloon to cover the projecting portion,
- wherein the balloon channel includes a bending portion in the distal end portion, and a balloon outlet that is connected to the bending portion, and
- wherein a cross section of the bending portion includes a first bending angle and a second bending angle, and the first bending angle is smaller than the second bending angle, such that the balloon outlet is widened outwardly.
Dependencies are inferred from the claim text.