The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 13, 2026

Filed:

Nov. 18, 2020
Applicant:

Hoya Corporation, Tokyo, JP;

Inventors:

Tetsu Hirayama, Tokyo, JP;

Takahiro Kobayashi, Tokyo, JP;

Naoyuki Naito, Tokyo, JP;

Assignee:

HOYA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/012 (2006.01); A61B 1/005 (2006.01); G02B 23/24 (2006.01);
U.S. Cl.
CPC ...
A61B 1/012 (2013.01); G02B 23/24 (2013.01); A61B 1/0051 (2013.01);
Abstract

The endoscope includes an insertion portion, a hand-operating unit, a first treatment-instrument conduit, and a second treatment-instrument conduit. One end of the insertion portion is coupled to the hand-operating unit. The first treatment-instrument conduit passes through insides of the insertion portion and the hand-operating unit. A treatment instrument is inserted into the first treatment-instrument conduit from an upper end of the hand-operating unit. The second treatment-instrument conduit passes through insides of the insertion portion and the hand-operating unit and includes a branching portion that branches off into a first branching path and a second branching path at the hand-operating unit, a treatment instrument is inserted into the second treatment-instrument conduit from the first branching path. The first treatment-instrument conduit includes a first part having a first hardness at least at a grip portion in the hand-operating unit and a second part having a second hardness smaller than the first hardness.


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