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Endoscope

Grant US12575716B2 Kind: B2 Mar 17, 2026

Assignee

HOYA CORPORATION

Inventors

Toshiyuki Katayama

Abstract

Provided is an endoscope capable of suppressing the displacement of a movable optical frame due to bending of a bending portion. An endoscope according this embodiment includes an insertion portion that includes a distal end portion, a bending portion, and a soft portion in order from the distal end side, a movable optical frame that is built in the distal end portion and capable of advancing and retreating in an axial length direction of the insertion portion, an operation coil that is connected to the movable optical frame and capable of advancing and retreating in the axial length direction of the insertion portion, and a protection coil through which the operation coil is inserted and which penetrates at least the bending portion.

CPC Classifications

A61B 1/00126 A61B 1/0057 A61B 1/00195 A61B 1/00188 A61B 1/00096 A61B 1/0019 A61B 1/05 G02B 7/04

Filing Date

2020-02-10

Application No.

17274300

Claims

12