公开(公告)号：US20230329706A1

公开(公告)日：2023-10-19

申请号：US18337648

申请日：2023-06-20

Applicant: OLYMPUS CORPORATION ,  National Cancer Center

Inventor： Takashi NAKAMURA ,  Hiroyuki TAKAYAMA ,  Satoru NONAKA ,  Ichiro ODA ,  Seiichiro ABE

IPC: A61B17/068

CPC classification number: A61B17/068 ,  A61B2017/003

Abstract: A medical stapler includes an attachment-detachment portion attached to a distal-end portion of an endoscope and including an opening from which an objective lens of the endoscope is exposed; and a grasping portion attached to the attachment-detachment portion and including a first grasping portion and a second grasping portion connected by a rotation shaft to be openable and closeable, wherein the second grasping portion includes a visual-field space penetrating a gap between the staple reception portion and the rotation shaft in an open-close direction, when the grasping portion is in the closed state, the staple extraction portion and the staple reception portion are opposite to each other, and when the grasping portion is in an open state, an optical axis of the objective lens passes through the visual-field space.

公开(公告)号：US20230329705A1

公开(公告)日：2023-10-19

申请号：US18337255

申请日：2023-06-19

Applicant: OLYMPUS CORPORATION ,  National Cancer Center

Inventor： Takashi NAKAMURA ,  Satoru NONAKA ,  Ichiro ODA ,  Seiichiro ABE

IPC: A61B17/068

CPC classification number: A61B17/068 ,  A61B2017/00296

Abstract: A medical stapler includes an attachment-detachment portion that is attachable to and detachable from a distal-end portion of an endoscope; a grasping portion arranged at a distal-end side of the attachment-detachment portion and configured to grasp target tissue and suture the grasped target tissue; and an advancement-retraction mechanism configured to connect the grasping portion to the attachment-detachment portion such that the grasping portion is advanceable and retractable with respect to the attachment-detachment portion, wherein the advancement-retraction mechanism includes a wire sheath inserting through a penetration hole formed in the attachment-detachment portion, a distal end of the wire sheath is fixed to the grasping portion, and the grasping portion moves to the distal-end side by moving the wire sheath toward the distal-end side.