Endoscope distal end cover, endoscope including the same, and method for removing endoscope distal end cover

Abstract

The invention provides a distal end cover for an endoscope, an endoscope using the distal end cover and a detach method of the distal end cover from the endoscope by tearing and destroying the distal end cover without damaging a soft member constituting an insertion part and to prevent falling during use. The endoscope 1 has the distal end cover 5 including a cover body part for covering at least a part of the outer peripheral part of the hard distal end part body 4A on the distal end side of the insertion part 2 and an opening 5a for inserting the distal end part body 4A. The distal end cover 5 has a finger hooking part 5A provided at the cover body part, a thin part 14 and a recessed groove 14a as a plastic deformation part arranged near the finger hooking part 5A and formed along the prescribed direction of the cover body, and first to third locking parts 15-17 provided on the inner peripheral surface side of the plastic deformation part for locking the distal end part body 4A.

Description

technical field [0001] The present invention relates to a distal end cover for an endoscope that covers a distal end body of an insertion portion of an endoscope, an endoscope using the distal end cover, and a method for removing the distal end cover of the endoscope. Background technique [0002] Generally, an endoscope is composed of an operation part that is grasped by the operator to perform various operations, and an insertion part. The insertion part is configured to have: a flexible tube part extending from the operation part and having flexibility; It is connected with the front end of the flexible tube part, and can be bent left and right or / and up and down through the operation of the operation part; and a rigid front end part is connected with the front end of the bending part. [0003] A lighting window, an observation window, a nozzle for washing the observation window, a forceps mouth serving as an outlet for various treatment instruments, and the like are disp...

AI Technical Summary

Problems solved by technology

[0010] However, in the conventional endoscope described in the aforementioned Patent Document 1, as described above, since a tool or a finger is to be inserted into the tool insertion groove provided on the edge of the front end cover, a side, that is, from the vicinity of the bending portion, tear the front end cover itself and remove the front end cover. Therefore, the outer skin of the bending portion or the flexible flexible tube portion is easily damaged, which may cause damage such as water leakage.

[0011] In addition, in the above-mentioned prior art, since the groove for tool insertion is provided inside the edge portion on the base end side of the front end cover where airtightness is important, if airtightness and insulation from the front end body are taken into consideration, the Insufficient consideration, cannot be said to be the preferred structure in terms of safety

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