公开(公告)号：US20190231376A1

公开(公告)日：2019-08-01

申请号：US16382379

申请日：2019-04-12

Applicant: OLYMPUS CORPORATION

Inventor： Ojiro KITAMURA ,  Yusuke TAKEI ,  Yuki KAWAGUCHI

IPC: A61B17/29 ,  A61B18/08 ,  A61B18/12

CPC classification number: A61B17/29 ,  A61B17/28 ,  A61B18/08 ,  A61B18/1206 ,  A61B2017/003 ,  A61B2017/2927 ,  A61B2017/2937 ,  A61B2017/2939 ,  A61B2017/2947

Abstract: A surgical treatment instrument includes a holdable housing, a shaft, an end effector configured to perform a bending movement with respect to the shaft, a rotor configured to rotate about a rotation axis in response to an operation input performed through an operation member, and a transmission member configured to transmit a driving force for causing the end effector to perform the bending movement to the end effector. The operation member and the transmission member are configured to rotate together with the shaft and the end effector in response to the operation input, and the rotor is configured to not rotate together with the shaft and the end effector when the operation input is performed.

公开(公告)号：US20190175257A1

公开(公告)日：2019-06-13

申请号：US16227269

申请日：2018-12-20

Applicant: OLYMPUS CORPORATION

Inventor： Kazuhiro TANAKA ,  Yuki KAWAGUCHI ,  Yusuke TAKEI ,  Ojiro KITAMURA ,  Akinori KOBAYASHI ,  Tomoyuki TAKASHINO ,  Tatsuro YAMAMOTO

IPC: A61B18/14 ,  A61B17/29

Abstract: A treatment instrument includes a rotating body and a housing. The rotating body includes a connecting portion including: a supported portion having a cylindrical outer peripheral surface, and an engaged portion that is adjacent to the supported surface. The housing includes a supporting portion that is configured to support the supported portion of the rotating body, the supporting portion being rotatable around a predetermined rotation axis; and an engaging portion that is configured to generate a frictional force larger than a frictional force between the supporting portion and the supported portion by coming into contact with the engaged portion.

公开(公告)号：US20190117246A1

公开(公告)日：2019-04-25

申请号：US16208943

申请日：2018-12-04

Applicant: OLYMPUS CORPORATION

Inventor： Kazuhiro TANAKA ,  Yusuke TAKEI ,  Ojiro KITAMURA ,  Akinori KOBAYASHI ,  Tatsuro YAMAMOTO

IPC: A61B17/29 ,  A61B18/14

Abstract: In a treatment instrument, one of a pair of jaws is supported by a supporter while being pivot able around the supporter with respect to the supporter. A drive member moves along a longitudinal axis so that the pair of the jaws are closed with respect to each other, thereby applying an axial force onto an elongated member from the drive member by way of the one of the jaws and the supporter in a direction along the longitudinal axis. A contact surface of the elongated member abuts on a housing when the elongated member moves with respect to the housing under the axial force, thereby suppressing rotation of the elongated member around the longitudinal axis with respect to the housing.