Endoscope

Patent metadata

Field	Value
Publication number	US-2016270630-A1
Application number	US-201615073659-A
Country	US
Kind code	A1
Filing date	Mar 18, 2016
Priority date	Mar 20, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

An endoscope which can reduce time and labor for cleaning processing is provided. The endoscope includes: a distal end portion body which is provided on the distal end side of an insertion portion; a rotating shaft which is rotatably supported in the distal end portion body; an elevator which is coupled with one end of the rotating shaft; an elevator erecting lever which is coupled with the other end of the rotating shaft; an operating wire which rotates the rotating shaft through the elevator erecting lever by operation of an operating member and raises the elevator; a partition wall which includes a holding hole to support the rotating shaft; and a seal member which is disposed between the holding hole and the rotating shaft, at least part of the seal member being exposed to a surface side facing the elevator of the partition wall.

First claim

What is claimed is:

1 . An endoscope comprising:
an insertion portion which includes a distal end and a proximal end; an operation portion which is provided on a proximal end side of the insertion portion and includes an operating member; a distal end portion body which is provided on a distal end side of the insertion portion; a rotating shaft which is rotatably supported in the distal end portion body; an elevator which is coupled with one end of the rotating shaft; an elevator erecting lever which is coupled with the other end of the rotating shaft; an operating wire which includes a proximal-end-side coupling portion coupled with the operating member and a distal-end-side coupling portion coupled with the elevator erecting lever, the operation wire configured to rotate the rotating shaft through the elevator erecting lever by operation of the operating member to erect the elevator; a partition wall which includes a holding hole configured to support the rotating shaft, is a part of the distal end portion body and is provided between the elevator and the elevator erecting lever; and a seal member which is disposed between the holding hole and the rotating shaft, at least part of the seal member being exposed to a surface side facing the elevator of the partition wall.

2 . The endoscope according to claim 1 , wherein:
the partition wall includes a first engagement portion formed in an inner wall surface of the holding hole; and the seal member includes a second engagement portion configured to engage with the first engagement portion.

3 . The endoscope according to claim 1 , wherein:
the rotating shaft includes a first engagement portion formed in an outer wall surface facing an inner wall surface of the holding hole; the seal member includes a second engagement portion configured to engage with the first engagement portion; and the partition wall includes a rotating shaft position restricting portion configured to restrict a position of the rotating shaft in an axis direction with respect to the holding hole.

4 . The endoscope according to claim 2 , wherein the first engagement portion includes a seal member position restricting portion configured to restrict a position of the seal member in an axis direction of the rotating shaft.

5 . The endoscope according to claim 4 , wherein the seal member position restricting portion includes a restriction surface which is provided in a position opposed to a surface of the seal member facing the elevator, and the restriction surface restricts the position of the seal member in the axis direction of the rotating shaft.

6 . The endoscope according to claim 1 , wherein:
the seal member includes a first thick portion and a second thick portion which is disposed on a side of the elevator with respect to the first thickness portion; and the second thick portion is configured so that a thickness of the second thick portion in a direction perpendicular to an axis direction of the rotating shaft is thicker than the first thickness portion.

Assignees

• Fujifilm Corp

Inventors

• Tanaka Toshizumi
• Ohki Tomohiro
• Emura Teruyuki
• Hachisuka Sunao

Classifications

• A61B1/00137

  End pieces at either end of the endoscope, e.g. caps, seals or forceps plugs · CPC title

• A61B1/00071 Primary

  Insertion part of the endoscope body (A61B1/0055 takes precedence) · CPC title

• A61B1/00098 Primary

  Deflecting means for inserted tools · CPC title

• A61B1/123

  using washing machines · CPC title

• A61B1/0055

  Constructional details of insertion parts, e.g. vertebral elements · CPC title