Title:
PUMP
Document Type and Number:
WIPO Patent Application WO/2014/115819
Kind Code:
A1
Abstract:
The proposed pump unit (10) comprises: a housing (11); a thin film (16) that is stretched across the housing (11) and partitions pump chambers (11A, 11B); inflow tubes (12A, 12B) respectively connected to the pump chambers (11A, 11B); outflow tubes (14A, 14B) respectively connected to the pump chambers (11A, 11B); and a magnet (17). First backflow-preventing valves (13A, 13B) are provided respectively to the inflow tubes (12A, 12B), and second backflow-preventing valves (15A, 15B) are provided respectively to the outflow tubes (14A, 14B). Further, the magnet (17) is arranged in the central section of the thin film (16) such that the north pole and the south pole thereof respectively face the respective inner walls of the pump chambers (11A, 11B).
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Inventors:
YAMBE TOMOYUKI (JP)
SHIRAISHI YASUYUKI (JP)
TAKACHI KEN (JP)
SHIRAISHI YASUYUKI (JP)
TAKACHI KEN (JP)
Application Number:
PCT/JP2014/051420
Publication Date:
July 31, 2014
Filing Date:
January 23, 2014
Export Citation:
Assignee:
LWJ CO LTD (JP)
UNIV TOHOKU (JP)
UNIV TOHOKU (JP)
International Classes:
F04B43/04; A61M60/122; A61M60/268; A61M60/457; A61M60/894
Foreign References:
| JPH01247777A | 1989-10-03 | |||
| JPS5647279U | 1981-04-27 | |||
| JPS5270405A | 1977-06-11 | |||
| US4498850A | 1985-02-12 | |||
| US20080240942A1 | 2008-10-02 | |||
| JPH11509457A | 1999-08-24 | |||
| US20120323318A1 | 2012-12-20 |
Attorney, Agent or Firm:
YAMANE HIROAKI (JP)
Hiroaki Yamane (JP)
Hiroaki Yamane (JP)
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