Product delivery system for delivering sterile liquid product
AssigneeAllergan, Inc.
InventorRobert Wood
Life of this patent
Estimating the term…
Abstract
A product delivery system for delivering sterile liquid product having a positive shut-off valve to prevent back flow of liquid and air into the system. The product delivery system comprises a compressible reservoir, a flexible delivery element extending from the reservoir, and a shut-off valve movable from a closed position to an opened position, the hollow interior of the delivery element being closed when the shut-off valve is in its closed position and open when the shut-off valve is in its open position to prevent the back flow of the delivered liquid product and air into the delivery element and reservoir to thereby maintain the sterility of the liquid product contained within the reservoir and the delivery element.
Claims8
A product delivery system for delivering sterile liquid product, comprising:
- a compressible reservoir for storing the sterile liquid product;
- a flexible delivery element extending from the reservoir, the delivery element having a hollow interior for delivering and storing the sterile liquid product;
- a shut-off valve moveable from a closed position to an opened position, the shut-off valve having a first portion being moveable and abutting the delivery element and a second portion being fixed in place and abutting the delivery element, wherein when the first portion of the shut-off valve is moved apart from the second portion of the shut-off valve, the shut-off valve being in its opened position, and the reservoir is compressed, sterile liquid product is delivered from the reservoir and through the delivery element and wherein when the first portion of the shut-off valve is brought together with the second portion of the shut-off valve, the shut-off valve being in its closed position, the first and second portions of the shut-off valve engage and close the hollow interior of the delivery element between the first and second portions of the shut-off valve to prevent the back flow of the delivered liquid product and air into the delivery element to thereby maintain the sterility of the liquid product contained within the reservoir and the delivery element.
Dependencies are inferred from the claim text.