Title:
TREATMENT INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2022/044080
Kind Code:
A1
Abstract:
This treatment instrument comprises: a tubular insertion tube at least a portion of which is inserted into a body; a pair of jaws 8, 9 which are provided on a distal end of the insertion tube, are bendable with respect to the insertion tube, and hold a biological tissue by opening and closing with respect to one another; a shaft 83 having an outer circumferential surface 831 that is located on the circumference of a specific circle about an axis of rotation for bending the pair of jaws 8, 9 with respect to the insertion tube when seen in a direction along the axis of rotation; a rod 112 that is passed through the inside of the insertion tube, and advances and retreats along the longitudinal axis of the insertion tube; and a link mechanism 113 that is connected to a distal end of the rod 112, and has a plurality of arms 114, 115 that are connected to one another so as to be movable in a specific plane. The link mechanism 113 and the shaft 83 are stacked along the axis of rotation, with the specific plane intersecting the axis of rotation.
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Inventors:
MIYAZAKI AKIRA (JP)
TANAKA KAZUHIRO (JP)
KITAMURA OJIRO (JP)
TANAKA KAZUHIRO (JP)
KITAMURA OJIRO (JP)
Application Number:
PCT/JP2020/031863
Publication Date:
March 03, 2022
Filing Date:
August 24, 2020
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B17/29
Domestic Patent References:
| WO2019038863A1 | 2019-02-28 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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