公开(公告)号：US20190200982A1

公开(公告)日：2019-07-04

申请号：US16299439

申请日：2019-03-12

Applicant: OLYMPUS CORPORATION

Inventor： Yoshiyuki KUMADA

IPC: A61B17/072 ,  A61B17/064 ,  A61B17/29

CPC classification number: A61B17/072 ,  A61B17/0644 ,  A61B17/068 ,  A61B17/29 ,  A61B2017/07221 ,  A61B2017/07257 ,  A61B2017/07271 ,  A61B2017/2936

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 graspe 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 graspes 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：US20190069893A1

公开(公告)日：2019-03-07

申请号：US16180196

申请日：2018-11-05

Applicant: OLYMPUS CORPORATION

Inventor： Masayuki KOBAYASHI ,  Kayuri KIMURA ,  Yoshiyuki KUMADA

IPC: A61B17/068 ,  A61B17/064

Abstract: A medical stapler according to the present invention is provided with: a staple housing provided with a gripping surface from which a staple for suturing tissue is ejected, and a cutter that cuts the tissue by being made to protrude from the gripping surface; an anvil that is disposed facing a direction in which the staple is ejected, and that is configured so that the tissue can be gripped between the gripping surface and the anvil; and a receiving member that is provided in the anvil, and that has a receiving surface that receives a cutting edge of the cutter, wherein the receiving surface of the receiving member has a shape in which only a portion thereof comes into contact with the cutting edge of the cutter at individual time points during a cutting step over the entire length of a cut length of the tissue.

公开(公告)号：US20190059894A1

公开(公告)日：2019-02-28

申请号：US16170139

申请日：2018-10-25

Applicant: OLYMPUS CORPORATION

Inventor： Yoshiyuki KUMADA ,  Hiroshi OKABE ,  Keisuke TSURIMOTO ,  Kayuri KIMURA ,  Masayuki KOBAYASHI

IPC: A61B17/072 ,  A61B17/28

Abstract: A medical stapler includes a first and a second grippers that are provided so as to be capable of opening/closing with respect to each other, and that can grip tissue therebetween. The first gripper includes a first contact surface being made to come into firm contact with one side of the tissue, and an ejection hole that is provided in the first contact surface and from which a staple is ejected. The second gripper includes a second contact surface being made to come into firm contact with the other side of the tissue, and an anvil portion provided in the second contact surface and having a curved surface that causes a needle portion of the staple to be bent. The first and second grippers are provided so as to allow relative positions thereof to be adjusted in a tangential direction of the curved surface.

公开(公告)号：US20180078256A1

公开(公告)日：2018-03-22

申请号：US15823872

申请日：2017-11-28

Applicant: OLYMPUS CORPORATION

Inventor： Kayuri KIMURA ,  Masayuki KOBAYASHI ,  Yoshiyuki KUMADA ,  Hiroshi OKABE ,  Keisuke TSURIMOTO

IPC: A61B17/072

CPC classification number: A61B17/07207 ,  A61B17/115 ,  A61B17/1155 ,  A61B2017/07228 ,  A61B2017/07271 ,  A61B2017/07285 ,  A61B2017/320052 ,  A61B2090/034

Abstract: A medical stapler including: a first jaw that has a plurality of staples arrayed in a row at intervals; a second jaw that has a second gripping surface that sandwiches living tissue between the second gripping surface and a first gripping surface; and a knife that moves between the first gripping surface and the second gripping surface along the row of staples from the one end of the row to a position extended from the other end of the row of staples, thus cutting the living tissue.

公开(公告)号：US20170296175A1

公开(公告)日：2017-10-19

申请号：US15588046

申请日：2017-05-05

Applicant: OLYMPUS CORPORATION

Inventor： Yoshiyuki KUMADA ,  Kayuri KIMURA ,  Hiroshi OKABE

IPC: A61B17/068 ,  A61B17/064 ,  A61B17/072

CPC classification number: A61B17/068 ,  A61B17/0644 ,  A61B17/0682 ,  A61B2017/0647 ,  A61B2017/07221 ,  A61B2017/07264

Abstract: A medical staple is provided with: a rectangular base portion; and a needle portion that extends from one end of the base portion in a substantially arc shape so as to protrude in a predetermined direction with respect to the base portion, wherein the needle portion has a first bending position that is provided between a base connected at the one end and a distal end, and that yields first when a pressing force in a radially inward direction of an arc shape of the needle portion acts on the distal end, and a second bending position that is provided between the first bending position and the base, and that yields first when the pressing force acts in the vicinity of the base of the first bending position.