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US 12,588,889 B2Granted
Ultrasonic endoscope
AssigneeFUJIFILM Corporation
InventorMasaya Inoue
Life of this patent
Estimating the term…
Abstract
A pressing portion is disposed on an inner peripheral surface of a base member, and has a pressing surface against which a pressed portion of a light guide fiber is pressed, and the pressing portion is configured in such a manner that a body portion of the light guide fiber is disposed at a position away from a cable support portion in a direction perpendicular to a longitudinal axis direction by pressing the pressed portion against the pressing surface.
Claims4
An ultrasonic endoscope comprising:
- a radial type ultrasound transducer that is provided in a distal end part of an elongated insertion part of the ultrasonic endoscope to be inserted into a subject;
- an illumination window that is provided in a distal end surface of the distal end part;
- a light guide fiber that is inserted into the insertion part and guides illumination light to the illumination window;
- an ultrasonic cable that is inserted into the insertion part and is connected to the radial type ultrasound transducer;
- and
- a bracket that is disposed inside the insertion part and has a bracket body portion that supports a distal end-side portion of the ultrasonic cable,
- wherein, in a case of being projected on a plane perpendicular to a longitudinal axis direction of the insertion part, the distal end-side portion of the ultrasonic cable or the bracket body portion is disposed at a position overlapping or adjacent to at least a part of a distal end-side portion of the light guide fiber, and
- a pressing portion that is disposed inside the insertion part, has a pressing surface against which a pressed portion as a part of the light guide fiber is pressed, and is configured in such a manner that a body portion disposed on a proximal end side with respect to the distal end-side portion of the light guide fiber is disposed at a position away from the bracket body portion in a direction perpendicular to the longitudinal axis direction by pressing the pressed portion against the pressing surface is provided,
- wherein in the longitudinal axis direction of the insertion part, the pressing portion is disposed between the distal end surface and the bracket,
- wherein the bracket has the pressing portion,
- wherein the pressing portion is a protruding portion that protrudes from a distal end side of the bracket body portion, and
- the protruding portion has a bent or flexed shape in a direction separate from the bracket body portion,
- wherein the pressing surface has an R-shaped surface convex toward the pressed portion of the light guide fiber.
10 more elements
Dependencies are inferred from the claim text.