Ultrasound endoscope
AssigneeFUJIFILM Corporation
InventorsSatoru Okada, Yasuhiko Morimoto, Tsuneo Fukuzawa
Life of this patent
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Abstract
There is provided an ultrasound endoscope of which a distal-end-part body of an insertion unit can be reduced in size. In an ultrasound endoscope according to an embodiment of the invention, a straight pipe portion of a first three-way pipe and a straight pipe portion of a second three-way pipe are arranged adjacent to each other in a direction orthogonal to the direction of a longitudinal axis of an insertion unit, and a branch pipe portion and the straight pipe portion are arranged at positions overlapping with each other in a case where the first three-way pipe and the second three-way pipe are projected onto a plane perpendicular to the direction of the longitudinal axis.
Claims13
An ultrasound endoscope comprising:
- an insertion unit having a tip portion;
- an observation window disposed in the insertion unit, an image pickup element disposed corresponding to the observation window;
- a first three-way pipe and a second three-way pipe disposed in the insertion unit;
- a treatment tool channel disposed within the insertion unit;
- a signal cable disposed in the insertion unit and connected to the image pickup element,
- wherein a first opening portion of the first three-way pipe and a second opening portion of the second three-way pipe are disposed on the tip portion, and the insertion unit has a first position on a proximal end thereof from the first opening portion,
- wherein in a circular cross-section at the first position of the insertion unit, the treatment tool channel, the first three-way pipe, and the second three-way pipe are closer to an outer peripheral surface of the insertion unit than to the signal cable,
- wherein in a circular cross-section, the first three-way pipe and the second three-way pipe are adjacent to each other,
- wherein the first three-way pipe is branched into a plurality of first pipe portions, and the second three-way pipe is branched into a plurality of second pipe portions, and
- wherein a first virtual surface where the plurality of first pipe portions is arranged and a second virtual surface where the plurality of second pipe portions is are arranged non-parallelly to each other.
Dependencies are inferred from the claim text.