Ambulatory infusion membrane pump

a membrane pump and ambulatory technology, applied in the direction of positive displacement liquid engine, process and machine control, instruments, etc., can solve the problems of high cost of hospitals, complicated check valve arrangement of cassette, and many of these pumps are very sophisticated and sometimes very complicated
US20070166181A1Inactive Publication Date: 2007-07-19MEDUX AB
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
MEDUX AB
Publication Date
2007-07-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

Ambulatory membrane pump intended for medical use e.g. for infusion purposes, consisting of two main parts: 1) the basic device with motor drive and computer, and 2) the administration set, which is disposable. The arrangement with check valves in both ends of the administration system safeguards that no leakage happens when gravitational forces are acting, due to height differences between fluid bag and needle.
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Description

TECHNICAL FIELD

[0001] The present invention relates to fluid injection pumps with disposable membrane pump and tubing intended for injection of medicines, pain relief and fluids related to nursing. BACKGROUND OF THE INVENTION

[0002] Membrane injection pumps are used in many applications, as ultra small plastic pumps intended for medical applications. However, when used for portioning fluids, as medicines, with a high degree of precision, usually other pumping methods dominate the market. Such pumps are syringe or plunger pumps, as well as peristaltic pumps.

[0003] Transporting fluids from a container to an injection needle with a high degree of precision is claimed as to the dosage, especially concerning new, potent medicines. Not intended leakage through tubing arrangement must be safely restricted, as when a container filled with medicine is placed above the needle, the static pressure can generate a flow if the system is not restricted against this.

[0004] Examples of prior art ...

Claims

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