Endoscope

Patent metadata

Field	Value
Publication number	US-10548464-B2
Application number	US-201715687597-A
Country	US
Kind code	B2
Filing date	Aug 28, 2017
Priority date	Dec 17, 2015
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

In an endoscope including a rear grasping portion extending along a second longitudinal axis that is a direction flexed relative to a first longitudinal axis along which the operation portion body extends, a bend preventing portion covering a universal cable extending out from the proximal end side of the rear grasping portion is joined to the proximal end side of the rear grasping portion via a movable joint portion so that a direction of the bend preventing portion can be changed by the movable joint portion to a first direction oriented to the inner side in the flexion direction of the rear grasping portion relative to the operation portion body and a second direction oriented to the outer side in the flexion direction of the rear grasping portion relative to operation portion body.

First claim

What is claimed is:

1. An endoscope comprising:
an operation body provided so as to be continuous with a proximal end side of an insertion portion, the operation body extending along a first longitudinal axis;
a rear grasping body provided so as to be continuous with a proximal end side of the operation body, the rear grasping body extending along a second longitudinal axis offset from the first longitudinal axis;
a cable extending from a proximal end side of the rear grasping body;
a tube covering the cable on the proximal end side of the rear grasping body; and
a joint configured to rotatably join the tube to the proximal end side of the rear grasping body so as to rotate the tube relative to the rear grasping body about a pivot axis, the pivot axis being offset from the second longitudinal axis, the pivot axis being offset to a side of the second longitudinal axis that is away from the insertion portion.

2. The endoscope according to claim 1 , wherein the joint is configured to change a direction in which the tube extends to a plurality of directions including a first direction in which the tube extends towards the insertion section and a second direction in which the tube extends away from the insertion section.

3. The endoscope according to claim 2 , wherein the joint is configured to further change the direction of the tube to extend laterally from the rear grasping body.

4. The endoscope according to claim 2 , wherein the first direction is within a range of 20 to 40 degrees, relative to the second longitudinal axis.

5. The endoscope according to claim 2 , wherein the second direction is not less than 80 degrees, relative to the second longitudinal axis.

6. The endoscope according to claim 2 , wherein the operation body further comprises a front grasping body provided on a distal end side relative to the rear grasping body, the front grasping body being graspable along the first longitudinal axis.

7. The endoscope according to claim 2 , wherein the operation body further comprises:
a distal end rotating body interposed between the insertion portion and the operation body, the distal end rotating body being pivotable around the first longitudinal axis relative to the operation body; and
a treatment instrument insertion port provided in the distal end rotating body.

Assignees

• Olympus Corp

Inventors

• Sato Eijiro
• Meguro Chikayoshi
• Takatsuji Kenji

Classifications

• A61B1/018

  for receiving instruments · CPC title

• A61B1/00121

  Connectors, fasteners and adapters, e.g. on the endoscope handle · CPC title

• A61B1/0052 Primary

  Constructional details of control elements, e.g. handles · CPC title

• A61B1/0057

  Constructional details of force transmission elements, e.g. control wires · CPC title

• A61B1/00066

  Proximal part of endoscope body, e.g. handles (A61B1/0052 takes precedence) · CPC title