Patent ID: 9700680
Date: 2017-07-11
CPC Classifications: A61B,A61M

Claim:
1. A device comprising: a first chamber holding a saline solution; a second chamber holding a gas; a valve separating the contents of the first and second chambers from mixing; an output from the device, in communication with the first and second chamber, such that the fluid and gas can flow through the output, the output comprising a taper, the taper comprising small-scale geometric features, the small-scale geometric features configured to produce gas bubbles as the saline solution and gas flow from the first and second chambers and through the output, the small-scale geometric features comprising a plurality of fins disposed along the taper; and a plunger configured to simultaneously force the saline solution and gas past the valve to mix with each other, through the small-scale geometric features to produce gas bubbles, and through the output, wherein the valve is configured to prevent mixing of the saline solution and the gas prior to movement of the plunger.