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EP0156211A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Pumping means for medical purposes

Assignee: Fresenius SE and Co KGaA
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Filing: 1985-03-06
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Granted: —
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Expires: 2005-03-06
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Abstract

Abstract Translated from German Pumpanordnung (10) für medizinische Zwecke, insbesondere Blut- oder infusionspumpe, bestehend aus einem Pumpengehäuse (12), das zwei durch eine Pumpenmembran (40) getrennte Pumpkammem (16, 18) aufweist, von denen die Arbeitskammer (16) mit der zu pumpenden Flüssigkeit beaufschlagt wird, während die Antriebskammer (18) über eine Verbindungsleitung mit einer in ihrem Pumpvolumen begrenzten, pneumatischen Pumpe (14) verbunden ist. Pump arrangement (10) for medical purposes, in particular blood or infusion pump, consisting of a pump housing (12) which has two pump chambers (16, 18) separated by a pump membrane (40), of which the working chamber (16) with the one to be pumped Liquid is applied while the drive chamber (18) is connected via a connecting line to a pneumatic pump (14) with a limited pump volume. Diese Verbindungsleitung (50) weist ein Ventil (56) auf, das am jeweiligen Umschaltpunkt (oberer und unterer Totpunkt) der Pumpe (14) geöffnet wird, um die gesamte Pumpanordnung (16) auf Atmosphärendruck zu stellen. This connecting line (50) has a valve (56) which is opened at the respective switching point (top and bottom dead center) of the pump (14) in order to set the entire pump arrangement (16) to atmospheric pressure.

Inventors

  • 👤 Dr. Polaschegg

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 18:41
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/067; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/40; A61M60/424; A61M60/427; A61M60/50; A61M60/508; A61M60/538; A61M60/80; A61M60/835; A61M60/837; A61M60/845; A61M60/851; A61M60/853; A61M60/855; A61M60/89; A61M60/892; Y; Y10; Y10S; Y10S128/00; Y10S128/12

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