Process and device for delivery of fluid by chemical reaction

摘要

Processes and devices for delivering a fluid by chemical reaction are disclosed. A chemical reaction is initiated in a reaction chamber to produce a gas, and the gas acts upon a piston to deliver the fluid. Preferred devices typically include an upper chamber, a lower chamber, a fluid chamber, a piston between the lower chamber and the fluid chamber, and a barrier between the upper chamber and the lower chamber. When the barrier is broken, reagents in the upper chamber and the lower chamber are mixed together to generate the gas.

主权项

1. A process for delivering a high-viscosity fluid by chemical reaction, comprising:
actuating a plunger positioned in a barrel of a device, the plunger separating a reagent chamber containing a first reagent from a reaction chamber containing a second reagent; and mixing the first reagent and the second reagent in response to the actuating to initiate a chemical reaction in the reaction chamber of the device, the reaction chamber including a piston; wherein the plunger moves away from the piston in response to the actuating; wherein gas generated by the chemical reaction moves the piston into a fluid chamber containing the high-viscosity fluid to deliver the high-viscosity fluid.