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Machine translation
1. (WO1980001934) NONPULSATING IV PUMP AND DISPOSABLE PUMP CHAMBER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001934    International Application No.:    PCT/US1980/000285
Publication Date: 18.09.1980 International Filing Date: 03.03.1980
IPC:
A61M 5/142 (2006.01), A61M 5/168 (2006.01), A61M 5/36 (2006.01), F04B 43/00 (2006.01), F04B 43/02 (2006.01), F04B 43/08 (2006.01), F04B 7/00 (2006.01), F04B 9/04 (2006.01)
Applicants:
Inventors:
Priority Data:
19223 09.03.1979 US
Title (EN) NONPULSATING IV PUMP AND DISPOSABLE PUMP CHAMBER
(FR) POMPE IV SANS PULSATION ET CHAMBRE DE POMPE JETABLE
Abstract: front page image
(EN)A small, accurate, reliable and economical pump which is particularly useful in intravenous (IV) feeding includes a disposable pump chamber (10) and a pump housing (12). The disposable pump chamber (10) has an inlet (14), an outlet (16), and first (24) and second (26) flexible rolling diaphragm pumping chambers. First (32) and second (34) cylinders in the pump housing are positioned to receive the first (24) and second (26) flexible rolling diaphragms of the disposable pump chamber (10). First (38) and second (40) pistons are movable in the first (24) and second (26) cylinders, respectively. In addition, first (44) and second (46) valves are provided in the pump housing (12). The first valve (44) controls fluid flow between the inlet and the first flexible rolling diaphragm pump chamber (24), while the second valve (44) controls fluid flow between the first flexible rolling diaphragm pumping chamber (24) and the second flexible rolling diaphragm pumping chamber (26). A motor (94) and cam shaft (96) drive the first (38) and second (40) pistons and the first (44) and second (46) valves. The first (44) and second (46) valves are controlled so that one valve is closed at all times, thereby providing fail safe operation of the pump.
(FR)Une petite pompe economique, precise et sure est particulierement utile a l"alimentation intraveineuse (IV) et comprend une chambre de pompe jetable (10) et un corps de pompe (12). La chambre de pompe jetable (10) possede une admission (14), une sortie (16), et une premiere et une seconde (26) chambres de pompage a diaphragme d"enroulement flexible. Un premier cylindre (32) et un second cylindre (34) dans le corps de pompe sont positionnes pour recevoir le premier diaphragme a, enroulement flexible (24) et le second diaphragme a enroulement flexible (26) de la chambre de pompe jetable (10). Un premier piston (38) et un second piston (40) sont mobiles dans le premier cylindre (24) et le second cylindre (26), respectivement. De plus, une premiere soupape (44) et une seconde soupape (46) sont montees dans le corps de pompe (12). La premiere soupape (44) commande le debit du fluide entre l"admission et la premiere chambre de pompe a diaphragme a enroulement flexible (24), tandis que la seconde soupape (44) commande le debit du fluide entre la premiere chambre de pompage a diaphragme a enroulement flexible (24) et la seconde chambre de pompage a diaphragme a enroulement flexible (26). Un moteur (94) et un arbre a came (96) entrainent le premier piston (38) et le second piston (40) et la premiere soupape (44) et la seconde soupape (46). La premiere soupape (44) et la seconde soupape (46) sont commandees de sorte qu"une soupape soit fermee a tous moments, assurant ainsi un fonctionnement infaillible de la pompe.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)