Fluid dispenser
AssigneeUrsapharm Arzneimittel GmbH
InventorDetmar Buxmann
Life of this patent
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Abstract
A fluid dispenser for germ-free fluid is described incorporating at least one material being capable of interacting via an oligodynamically active substance. The dispenser includes a metering pump and inlet and outlet valves. The fluid coming into contact with at least one oligodynamically active substance is present in the region of the outlet valve, of the inlet thereto and/or the outlet therefrom.
Claims21
A fluid dispenser for germ-free fluid (10) comprising
- a through passage (32,20,25) connecting an inlet opening (15) for fluid (10) contained in a supply container (9) and a delivery opening (24) for dispensing said fluid (10) and having therein at least one oligodynamically active substance that is in contact with the fluid (10);
- a metering pump operating without air pressure compensation and having an inlet valve (26) for closing said inlet opening (15), said inlet valve (26) comprising a material capable of interacting with the fluid (10) via an active oligodynamically substance and
- a spring means (29) being in contact with the fluid (10)
- wherein the inlet valve (26) and the spring means (29) comprise a steel material as an oligodynamically active substance, and a decontamination means (33) is provided in the upper part of outlet passage (25), said decontamination means (33) comprising a material capable of interacting with the fluid (10) via an oligodynamical substance selected from the group consisting of silver, silver salts, other silver compounds, alloys and nanomers thereof in either metallic or salt form or as a chemical compound thereof.
Use of a fluid dispenser according to at least one of the preceding claims for dispensing minute amounts of a liquid in the field of pharmaceutics, cosmetics and medical devices.
Dependencies are inferred from the claim text.