Title:
AIR TRAP CHAMBER AND EXTRACORPOREAL CIRCULATION CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/211952
Kind Code:
A1
Abstract:
An air trap chamber (10) is provided with a chamber body (12) and a filter (40). An introduction pipe (21) of the chamber body (12) is provided so as to extend to the inside of the chamber body (12), and an inlet port (23) which is an end opening of the introduction pipe (21) is provided, on the inner circumferential surface of the chamber body (12), so as to be directed toward the circumferential direction. The filter (40) is provided inside the chamber body (12), and covers an outlet port (31) of the chamber body (12). In the filter (40), a cylindrical portion (41) surrounding the outlet port (31) and extending in the center axis direction of the chamber body (12), and a ceiling portion (42) covering the upper end of the cylindrical portion (41) are formed. Openings (47) are formed, at multiple stages along the center axis direction, in the cylindrical portion (41) of the filter (40). An opening (47) at an upper stage on the ceiling portion (42) side of the filter (40) has a circumferential width greater than that of an opening (47) at a lower stage on the outlet port (31) side.
Inventors:
KAWAMURA SHUNSUKE (JP)
KATO RYO (JP)
KATO RYO (JP)
Application Number:
PCT/JP2019/010961
Publication Date:
November 07, 2019
Filing Date:
March 15, 2019
Export Citation:
Assignee:
NIKKISO CO LTD (JP)
International Classes:
A61M5/36; A61M1/36
Domestic Patent References:
| WO2008065472A1 | 2008-06-05 |
Foreign References:
| JP3066867U | 2000-03-07 | |||
| JPH09808A | 1997-01-07 | |||
| US20060173395A1 | 2006-08-03 | |||
| JP2013090675A | 2013-05-16 | |||
| JP2001309975A | 2001-11-06 | |||
| JP2010119561A | 2010-06-03 | |||
| US8500672B2 | 2013-08-06 |
Other References:
See also references of EP 3789060A4
Attorney, Agent or Firm:
YKI INTELLECTUAL PROPERTY ATTORNEYS (JP)
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