Ultrasonic endoscope
AssigneeFUJIFILM Corporation
InventorYasuhiko MORIMOTO
Life of this patent
Estimating the term…
Abstract
An observation unit can be stably held in a state where the observation unit is mounted on a distal portion, and can be easily removed without interfering with a connection pipe. A mounting hole for mounting an observation unit on a distal end body which constitutes a distal portion is formed. The mounting hole is formed with a first holding portion into which the distal portion of the lens barrel is inserted, a second holding portion into which a prism holder is inserted, and a releasing portion having a space larger than the external diameter of the lens barrel between the first and second holding portions.
Claims18
An endoscope comprising an insertion part having a distal portion, a bending portion connected to the distal portion and a flexible portion connected to the bending portion and having more flexibility than the distal portion, and, a main body operating part,
- wherein the distal portion is provided with an endoscope observation mechanism having an observation unit including a lens barrel on which objective lenses are mounted, and imaging section disposed at the imaging position of the objective lenses, the distal portion has a treatment tool insertion channel through which a treatment tool is led out of a treatment tool outlet, and a mounting hole for mounting the observation unit, and the mounting hole has a first hollow tubular holding portion which holds a portion of the lens barrel on the side of the distal portion, and a second hollow tubular holding portion which is formed on the side of the first holding portion separated from the distal portion, and holds a portion of the observation unit, and
- the diameter of the first holding portion is smaller than the diameter of the second holding portion, and the mounting hole and the lens barrel are separated from each other between the first and the second holding portions.
Dependencies are inferred from the claim text.