Title:
ポンピングおよび計量装置
Document Type and Number:
Japanese Patent JP4309970
Kind Code:
B2
Abstract:
The present invention relates to a pumping device for delivering and metering fluids, in particular medical fluids such as dialysis fluids, with a piston unit having a driving device and a piston and with a membrane unit which has a membrane and a first chamber bordered by the membrane. The pumping device also has a hydraulic unit which has a space to accommodate a hydraulic fluid which is connected to the piston of the piston unit and to the first chamber of the membrane unit. The reliability of metering by such a pumping device is increased by providing a control unit for guaranteeing a predefinable metering rate and/or quantity and also providing a measuring device by means of which the axial position of the piston unit can be determined directly and which can be connected to the control unit.
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Inventors:
Hell Crot Martin
Schneider Hans Peter
Bigarke yerke
Denig liner
Heckel Jurgen
Schneider Hans Peter
Bigarke yerke
Denig liner
Heckel Jurgen
Application Number:
JP51963899A
Publication Date:
August 05, 2009
Filing Date:
March 26, 1998
Export Citation:
Assignee:
Fresenius Medical Care Deutsche Land Gesellschaft Mitt Beschlenktel Haftung
International Classes:
A61M5/168; F04B43/02; F04B13/00; F04B43/00; F04B43/067; F04B49/06; G01F11/08
Domestic Patent References:
| JP5508700A | ||||
| JP5231329A | ||||
| JP52144185A | ||||
| JP3168373A |
Attorney, Agent or Firm:
Minoru Nakamura
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo
Fumiaki Otsuka
Shishido Kaichi
Hideto Takeuchi
Toshio Imajo
Nobuo Ogawa
Village shrine Atsuo