Title:
オーバーチューブ
Document Type and Number:
Japanese Patent JP7076561
Kind Code:
B2
Abstract:
Provided is an overtube that can be easily gripped by the operator. The overtube includes a tube main body, a gripping cylinder connected to the proximal end side of the tube main body, a balloon mounted on an outer peripheral surface on a distal end side of the tube main body, and an air supply pipe line that is arranged to be parallel to an endoscope insertion passage from the tube main body to the gripping cylinder and communicates with the balloon. The gripping cylinder includes a first connecting pipe that extends obliquely outward from a first position of a gripping cylinder side portion toward the proximal end side of the gripping cylinder, and a second connecting pipe that extends obliquely outward from a second position different from the first position toward the proximal end side of the gripping cylinder. The gripping cylinder is an integrally molded body in which the first connecting pipe and the second connecting pipe are integrally molded. In a case where the plane orthogonal to the center axis of the gripping cylinder is defined as a first surface, and the plane orthogonal to the first surface and intersecting the air supply pipe line is defined as a second surface, the first position and the second position are disposed on the same side with respect to the reference surface orthogonal to the first surface and orthogonal to the second surface.
Inventors:
High Shinji Hashi
Application Number:
JP2020541066A
Publication Date:
May 27, 2022
Filing Date:
August 01, 2019
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
A61B1/01; G02B23/24
Domestic Patent References:
| JP2003299671A | ||||
| JP2012500710A | ||||
| JP2011200403A | ||||
| JP2008253780A | ||||
| JP2003204920A | ||||
| JP2007167302A |
Foreign References:
| WO2017090667A1 |
Attorney, Agent or Firm:
Kenzo Matsuura
Kazuki Ohara
Kiyoshi Matsumura
Constitutional Matsuura
Kazuki Ohara
Kiyoshi Matsumura
Constitutional Matsuura