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Machine translation
1. (WO1981001656) METHOD AND APPARATUS FOR METERED INFUSION OF FLUIDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/001656    International Application No.:    PCT/US1980/001572
Publication Date: 25.06.1981 International Filing Date: 24.11.1980
IPC:
A61M 5/142 (2006.01), A61M 5/172 (2006.01)
Applicants:
Inventors:
Priority Data:
103041 13.12.1979 US
Title (EN) METHOD AND APPARATUS FOR METERED INFUSION OF FLUIDS
(FR) PROCEDE ET APPAREIL D'INJECTION DOSEE DE FLUIDE
Abstract: front page image
(EN)Metering apparatus (13) for metering the flow of fluid through an administration set (12) includes a peristaltic-type metering pump (23) which repeatedly and progressively compresses a section of vinyl tubing (18) of the administration set (12) to provide a desired flow rate. For improved metering accuracy the fluid is maintained under pressure upline and downline of the metering pump (23) to assist the tubing (18) in becoming fully restored following each compression by the pump (23). In the illustrated embodiment, upline pressure is provided by a peristaltic-type pressure pump (23) which is operated at a controlled rate to maintain a predetermined upline pressure, and downline pressure is provided by a spring-biased plunger (67) which bears against the tubing (18) downline of the metering pump (23) to partially occlude the tubing (18).
(FR)Appareil de dosage (13) servant a mesurer le debit de fluide au travers d'un ensemble d'administration (12) comprend une pompe de dosage peristaltique (23) qui comprime de maniere repetee et progressivement une section du tube de vinyle (18) de l'ensemble d'administration (12) pour obtenir un debit d'ecoulement desire. Pour ameliorer la precision du dosage, le fluide est maintenu sous pression en amont et en aval de la pompe de dosage (23) pour aider le tube (18) a reprendre entierement son etat initial apres chaque compression de la pompe (23). Dans le mode illustre de realisation, la pression en amont est fournie par une pompe de pression du type peristaltique (23) qui fonctionne a une vitesse commandee pour maintenir une pression en amont predeterminee, et la pression en aval est fournie par un piston a ressort (67) qui s'appuie contre le tube (18) en aval de la pompe de dosage (23) pour boucher partiellement le tube (18).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)