Ambulatory infusion membrane pump
First Claim
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1. 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.
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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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Citations
13 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification