Patent 8986253 was granted and assigned to Tandem Diabetes Care on March, 2015 by the United States Patent and Trademark Office.
Two chamber pumps and related methods provide a platform for measuring flow rate in about real time without contacting the material being pumped. Pressure and optional temperature sensors disposed in a pressurized chamber allow for flow material delivery calculations after being calibrated or by knowing the initial volume of the flow material to be delivered.