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DE3408331C2 Expired / Lapsed DE ⏱️ 0.0 years remaining

Pumping arrangement for medical purposes

Assignee: Fresenius SE and Co KGaA
•
Filing: 1984-03-07
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Granted: 1986-06-12
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Expires: 2004-03-07
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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 Pumpkammern (16, 18) aufweist, von denen die erste Pumpkammer (16) mit der zu pumpenden Flüssigkeit beaufschlagt wird, während die zweite Pumpkammer (18) über eine Verbindungsleitung mit einer in ihrem Pumpvolumen begrenzten, pneumatischen Pumpe (14) verbunden ist. 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. Pump arrangement (10) for medical purposes, in particular a blood or infusion pump, consisting of a pump housing (12) which has two pump chambers (16, 18) separated by a pump membrane (40) pumping liquid is acted upon, while the second pumping chamber (18) is connected via a connecting line to a pneumatic pump (14) whose pumping volume is limited. 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

  • 👤 Hans-Dietrich Dr. 6370 Oberursel Polaschegg

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-26 22:57
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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