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US 2007/0166181 A1Published application
Ambulatory infusion membrane pump
OwnerBilly Nilsoninventor
Life of this 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.
Claims13
A membrane pump intended for transporting a controlled average of volumetric flow rate of a fluid from a fluid source through an outlet to a patient, the membrane pump comprising:
- a pump house with a membrane,
- a needle arrangement,
- an inlet flexible tube connected to as inlet of said pump house,
- an outlet flexible tube connected to an outlet of said pump house,
- an inlet check valve connected to an end of said inlet tube and positioned close to the fluid source, and
- an outlet check valve connected to an end of said outlet tube and positioned close to said needle arrangement.
3 more elements
Dependencies are inferred from the claim text.