Title:
FLOW PATH SWITCHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/106716
Kind Code:
A1
Abstract:
This flow path switching device comprises an outer cylinder part (101) which has four opening parts (121) disposed equally spaced on an outer surface, a valve (102) which is rotatably accommodated in the outer cylinder part and has two flow paths (122) independent of each other connecting two adjacent ones of the four opening parts, and four tubes (103) respectively connected to the four opening parts. Each tube has, on an end part toward the outer cylinder part, a high rigidity part (136) that is more rigid than the other parts of the tube and is less rigid than the outer cylinder part.
Inventors:
MASUDA TOSHIAKI (JP)
KAWABE MINAMI (JP)
KAWABE MINAMI (JP)
Application Number:
PCT/JP2020/043023
Publication Date:
June 03, 2021
Filing Date:
November 18, 2020
Export Citation:
Assignee:
NIPRO CORP (JP)
International Classes:
A61M39/22; A61M1/36; F16K11/085
Domestic Patent References:
| WO2019070028A1 | 2019-04-11 | |||
| WO2014155489A1 | 2014-10-02 | |||
| WO2019070028A1 | 2019-04-11 |
Foreign References:
| JP2006262932A | 2006-10-05 | |||
| JP2009232882A | 2009-10-15 |
Other References:
See also references of EP 4066880A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Download PDF: