EP 2515970 A1 20121031 - ALTERNATING POSITIVE-DISPLACEMENT PUMP HAVING A MEMBRANE FOR MEDICAL USE
Title (en)
ALTERNATING POSITIVE-DISPLACEMENT PUMP HAVING A MEMBRANE FOR MEDICAL USE
Title (de)
ALTERNIERENDE VERDRÄNGERPUMPE MIT MEMBRAN FÜR MEDIZINISCHE ZWECKE
Title (fr)
POMPE VOLUMÉTRIQUE ALTERNATIVE A MEMBRANE POUR USAGE MÉDICAL
Publication
Application
Priority
- CH 19812009 A 20091223
- CH 2010000318 W 20101220
Abstract (en)
[origin: WO2011075859A1] The invention relates to an alternating positive-displacement pump (1) having a membrane that is intended for fluids and for medical use, and including a driving portion (10) in which an electromagnetic actuator (11) is arranged, said actuator including at least one coil (12) and actuating a piston (14) of a mobile member (15) capable of linear cyclic movement. The pump includes a pump body (20) in which a pre-stressed membrane (22) is provided, said membrane being capable of translation by means of elastic deformation from a normal rest position to an adjacent position by means of the transmission of the piston (14) operation. Said pump also includes means (30) for detecting tolerance-exceeding variations in the intensity of the supply current using measurements (33), means (40) for continuously measuring the position of the mobile member (15), and means (30, 45) for analyzing and processing said measurements for generating at least one alarm signal (35) indicating the detection of at least one malfunction of the pump.
IPC 8 full level
A61M 5/142 (2006.01); F04B 35/04 (2006.01); F04B 43/04 (2006.01)
CPC (source: EP US)
A61M 5/14224 (2013.01 - EP US); F04B 35/045 (2013.01 - EP US); F04B 43/04 (2013.01 - EP US)
Citation (search report)
See references of WO 2011075859A1
Citation (examination)
- EP 0798558 A2 19971001 - SHIMADZU CORP [JP]
- WO 0022298 A2 20000420 - LIQUID METRONICS INC [US]
- EP 1757809 A1 20070228 - PROMINENT DOSIERTECHNIK GMBH [DE]
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)
CH 702437 A1 20110630; EP 2515970 A1 20121031; US 2012315157 A1 20121213; US 9050408 B2 20150609; WO 2011075859 A1 20110630
DOCDB simple family (application)
CH 19812009 A 20091223; CH 2010000318 W 20101220; EP 10807428 A 20101220; US 201013518487 A 20101220