公开(公告)号：US11160552B2

公开(公告)日：2021-11-02

申请号：US16272023

申请日：2019-02-11

Applicant: OLYMPUS CORPORATION

Inventor： Masayuki Kobayashi ,  Yoshiyuki Kumada ,  Keisuke Tsurimoto

IPC: A61B17/072 ,  A61B17/115 ,  A61B17/068 ,  A61B17/00

Abstract: A medical manipulator includes: an elongated support member; an end effector that is supported at a distal end of the support member so as to be movable in a longitudinal axial direction; a first pulling pulley that is supported so as to be rotatable about a first shaft that is secured to the end effector and that is orthogonal to the longitudinal axis; and a first wire that is wound around the first pulling pulley so as to cause, when a proximal end thereof is pulled, tensile forces in substantially the same directions to act on the first pulling pulley on either side of the first pulling pulley flanking the first shaft.

公开(公告)号：US10881400B2

公开(公告)日：2021-01-05

申请号：US16299439

申请日：2019-03-12

Applicant: OLYMPUS CORPORATION

Inventor： Yoshiyuki Kumada

IPC: A61B17/064 ,  A61B17/072 ,  A61B17/29 ,  A61B17/10 ,  A61B17/068 ,  A61B17/115

Abstract: A medical stapler system according to the present invention is equipped with a medical stapler and a staple that closes tissue. The medical stapler is equipped with: a first grasper and a second grasper that have a longitudinal axis and that grasp the tissue therebetween when in a closed state; a holder that retains the staple; a housing body that houses the holder while a needle of the staple projects from a first contact surface of the first grasper; and a drive mechanism that slides the holder along the longitudinal axis. The second grasper has a second contact surface that grasps the tissue between the first contact surface and the second contact surface, a recessed portion that houses the needle without causing penetration or deformation when a closed state, and an anvil against which the needle is pushed and deformed when the closed state.

公开(公告)号：US11253281B2

公开(公告)日：2022-02-22

申请号：US16376685

申请日：2019-04-05

Applicant: OLYMPUS CORPORATION

Inventor： Kayuri Kimura ,  Masatoshi Iida ,  Noriaki Yamanaka ,  Shuya Jogasaki ,  Yoshiyuki Kumada

IPC: A61B17/29 ,  A61B17/00 ,  A61B34/00

Abstract: A medical treatment tool includes an elongated insertion section; a grasper supported by a distal end of the insertion section so as to be openable and closable; a generator disposed at a proximal end of the insertion section and generating a force to drive the grasper; a transmitter transmitting the force generated by the generator to the distal end of the insertion section; an amplifier amplifying the force transmitted through the transmitter; and a toggle amplifying and converting the force amplified by the amplifier into a force directed to open or close the grasper.