公开(公告)号：US20190029503A1

公开(公告)日：2019-01-31

申请号：US16151149

申请日：2018-10-03

Applicant: OLYMPUS CORPORATION

Inventor： Takaaki HANAI ,  Kiyoshi TAKAO ,  Yoshiteru NONAKA ,  Yoshinori HIGUCHI

IPC: A61B1/018 ,  A61B1/00 ,  A61M25/00

Abstract: The channel tube for endoscope according to the present invention is provided with: an inner-layer tube inside which a through hole extending in a longitudinal direction is formed, the inner-layer tube having as a base material thereof an elastomer or a flexible resin; an elastomer layer comprising a polymer elastomer, the elastomer layer being disposed so as to cover the outside of the inner-layer tube, and the surface of the elastomer layer being exposed to the outside; a reinforcing layer part including a flexible reinforcing member, the reinforcing layer part being disposed so as to surround the inner-layer tube; and a buffer layer part which deforms more readily than the reinforcing layer part, the buffer layer part being layered on the reinforcing layer part and disposed between the inner-layer tube and an outer peripheral surface of the elastomer layer.

公开(公告)号：US20220313356A1

公开(公告)日：2022-10-06

申请号：US17839735

申请日：2022-06-14

Applicant: OLYMPUS CORPORATION

Inventor： Yoshinori HIGUCHI ,  Chika MIYAJIMA ,  Satoko KATO

IPC: A61B18/14

Abstract: A high-frequency treatment tool includes: a tubular sheath; a cap member fixed to a distal end of the sheath; and an electrode part provided so as to be relatively movable in a longitudinal direction of the sheath and relatively rotatable about a longitudinal axis of the sheath with respect to the cap member. The electrode part and the cap member are relatively rotated about the longitudinal axis of the sheath while pressing biological tissue stuck to the electrode part against the cap member to separate the biological tissue from the electrode part.

公开(公告)号：US20220304747A1

公开(公告)日：2022-09-29

申请号：US17839702

申请日：2022-06-14

Applicant: OLYMPUS CORPORATION

Inventor： Yasuo MIYANO ,  Yoshinori HIGUCHI ,  Kenji MURAKAMI ,  Shohei KAMADA ,  Yoshitaka KAMIYA ,  Masayoshi SAITO

IPC: A61B18/14

Abstract: Provided is a high-frequency treatment tool including: a sheath having an inner hole that passes therethrough in a longitudinal direction; a first electrode portion that is formed in a rod shape, that passes through the inner hole of the sheath to protrude from a distal end of the sheath, and that is configured to apply a high-frequency current; a second electrode portion that is disposed at a position at which the second electrode portion is electrically connected with the first electrode portion; and a power source that uses the first electrode portion as a negative electrode, that uses the second electrode portion as a positive electrode, and that supply a current between the first electrode portion and the second electrode portion so that a state in which attached matter attached to the first electrode portion is lifted from the first electrode portion due to osmosis is created.