EP 3559463 B1 20201202 - DISPLACEMENT PUMP FOR MEDICAL LIQUIDS, BLOOD TREATMENT DEVICE, AND METHOD FOR CONTROLLING SAME
Title (en)
DISPLACEMENT PUMP FOR MEDICAL LIQUIDS, BLOOD TREATMENT DEVICE, AND METHOD FOR CONTROLLING SAME
Title (de)
VERDRÄNGERPUMPE FÜR MEDIZINISCHE FLÜSSIGKEITEN UND BLUTBEHANDLUNGSVORRICHTUNG SOWIE VERFAHREN ZU DEREN STEUERUNG
Title (fr)
POMPE VOLUMÉTRIQUE POUR LIQUIDES MÉDICAUX ET DISPOSITIF DE TRAITEMENT DU SANG AINSI QUE PROCÉDÉ DE COMMANDE ASSOCIÉ
Publication
Application
Priority
- DE 102016015110 A 20161220
- EP 2017083184 W 20171217
Abstract (en)
[origin: WO2018114727A1] The invention relates to a displacement pump (1) for pumping medical liquids, having a pump chamber (5) and a displacement element (15), and to a blood treatment device comprising a displacement pump (1). The invention additionally relates to a method for controlling a displacement pump (1) for pumping medical liquids. The displacement pump (1) according to the invention has an actuation element (20), which is operatively connected to the displacement element (20) for moving or deforming the displacement element in order to pump the liquid into the pump chamber or out of the pump chamber, and a drive device (21) for moving the actuation element (20). A control unit (14) is provided for actuating the drive device (21), an inlet valve (12), and an outlet valve (13). The actuation element (20) is operatively connected to the displacement element (15) via a working chamber (19) which is filled with a gas and which has a closed volume. The aim of the invention is to achieve a high degree of delivery accuracy. This is achieved in that the pressure in the working chamber (5) is kept constant during the movement of the displacement element (15).
IPC 8 full level
F04B 13/00 (2006.01); F04B 15/00 (2006.01); F04B 43/12 (2006.01)
CPC (source: EP US)
F04B 9/125 (2013.01 - EP); F04B 13/00 (2013.01 - EP); F04B 15/00 (2013.01 - EP); F04B 43/0081 (2013.01 - US); F04B 43/04 (2013.01 - EP US); F04B 43/067 (2013.01 - EP US); F04B 49/08 (2013.01 - US); F04B 49/20 (2013.01 - US); F04B 49/22 (2013.01 - US); F04B 2201/06062 (2013.01 - EP); F04B 2205/03 (2013.01 - EP US); F04B 2205/05 (2013.01 - US); F04B 2205/09 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102016015110 A1 20180621; CN 110088472 A 20190802; CN 110088472 B 20210817; EP 3559463 A1 20191030; EP 3559463 B1 20201202; JP 2020501864 A 20200123; JP 7123968 B2 20220823; US 11300120 B2 20220412; US 2019383282 A1 20191219; WO 2018114727 A1 20180628
DOCDB simple family (application)
DE 102016015110 A 20161220; CN 201780079319 A 20171217; EP 17816835 A 20171217; EP 2017083184 W 20171217; JP 2019554012 A 20171217; US 201716469671 A 20171217