Title:
ENDOSCOPE TUBE SWITCHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/225562
Kind Code:
A1
Abstract:
An endoscope tube switching device that comprises a mobile piston part that has a piston part and a packing part and can move in and out of a tube of an endoscope. The piston part comprises a hard resin, extends along the tube, and has a narrow diameter part that is narrower than a base end part. The packing part comprises an elastic material, is arranged around the outer circumference of the piston part, and fills a gap between the tube and the piston part when the piston part has been inserted into the tube. The present invention thereby provides an endoscope tube switching device that prevents a resin piston part and an elastic packing part from separating.
Inventors:
SAIGA KAZUYA (JP)
Application Number:
PCT/JP2019/019984
Publication Date:
November 28, 2019
Filing Date:
May 20, 2019
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B8/12; A61B1/00; A61B1/015; G02B23/24
Domestic Patent References:
| WO2018003185A1 | 2018-01-04 | |||
| WO2017145435A1 | 2017-08-31 |
Foreign References:
| JP2015104425A | 2015-06-08 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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