公开(公告)号：US20210267669A1

公开(公告)日：2021-09-02

申请号：US16804804

申请日：2020-02-28

Applicant: OLYMPUS CORPORATION

Inventor： Nobuko MATSUO ,  Keiichi SATO ,  Yoshisane NAKAMURA

IPC: A61B18/14

Abstract: In a method for treating gastroesophageal reflux disease, an insertion portion of an endoscope is inserted from a cardia into a stomach. A distal end portion can be bent to position a cardiac region and a cautery unit in a field of view of an observation mechanism. The cautery unit can be brought into contact with a first region of a stomach wall around the cardia to cauterize the first region without removing a mucosal layer thereof while the cautery unit and a proximal portion of the insertion portion proximal of the bend are separated from each other by a predetermined distance or more. A position of the cautery unit with respect to the stomach wall can be changed while the separation state is maintained to bring the cautery unit into contact with and cauterize a second region of the stomach wall without removing a mucosal layer thereof.

公开(公告)号：US20200046400A1

公开(公告)日：2020-02-13

申请号：US16658574

申请日：2019-10-21

Applicant: OLYMPUS CORPORATION

Inventor： Keiichi SATO

IPC: A61B17/3205 ,  A61B17/32

Abstract: A tissue excision instrument that includes a sheath having a lumen, a manipulation member movably disposed inside the lumen, a snare wire coupled to a distal end of the manipulation member, and a holder provided at a distal portion of the sheath and configured to have a through-hole. The snare wire includes a first wire portion that has a first proximal portion including one end and a first distal portion, a second wire portion that has a second proximal portion including the other end and a second distal portion, extends through a through-hole between the second proximal portion and the second distal portion, and extends across the first wire portion, and a curved portion that extends to be curved between the first distal portion and the second distal portion and has at least a part disposed on a distal side relative to the through-hole.

公开(公告)号：US20220338716A1

公开(公告)日：2022-10-27

申请号：US17858223

申请日：2022-07-06

Applicant: OLYMPUS CORPORATION

Inventor： Nobuko MATSUO ,  Keiichi SATO ,  Takuya OKUMURA ,  Yuta HAYASHI

IPC: A61B1/00 ,  A61B18/14

Abstract: A treatment device and an endoscopic treatment method are disclosed. The treatment device includes a first pipeline that is made of material having electrical insulation, and includes an internal space; an electrode that is energizable with high frequency current; a distal-end tip that is attached to a distal end of the first pipeline, and includes a distal-end opening in communication with the internal space of the first pipeline; and a second pipeline that is inserted through the first pipeline and through which liquid can pass. The endoscopic treatment method includes puncturing a treatment target and performing a local injection using the treatment device.