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US 4,899,519 AGranted
Fluid injection system cassette and fluid packaging methods
AssigneeSurgikos, Inc.
InventorsHarold R. Williams, Robert M. Spencer
Life of this patent
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Abstract
A cassette containing a group of sealed cells is used as a means for delivering doses of fluid to be injected into a sterilizing chamber. After the cassette is automatically positioned over a piercing mechanism, the cassette is moved downwardly so that a cell is pierced. Fluid is then forced out of the cell by pneumatic pressure into an injector valve, which opens in a manner which does not adversely affect a vacuum within the chamber.
Claims4
A method of packaging fluid to be dispensed, comprising the steps of:
- forming a closed cell with a known quantity of fluid sealed therein, with said cell having a movable wall;
- sealing said cell in a cassette having a compartment formed therein for enclosing said cell, and forming thereby a pressure cavity and a delivery cavity;
- forming a hole in the wall of said delivery cavity through which fluid from said cell may be dispensed;
- and
- forming an aperture in a wall of said pressure cavity through which pressure may be applied to said movable wall to force fluid out of said cell.
2 more elements
Dependencies are inferred from the claim text.