초록 ▼

A method and system for determining when a fluid has stopped flowing within a line. The pressure variation in a second fluid, separated from the first by a pumping membrane, is measured in response to energy applied in a time-varying manner to the second fluid. From the response of the second fluid

A method and system for determining when a fluid has stopped flowing within a line. The pressure variation in a second fluid, separated from the first by a pumping membrane, is measured in response to energy applied in a time-varying manner to the second fluid. From the response of the second fluid to the applied energy, it is determined whether the first fluid has stopped flowing.

대표청구항 ▼

[ What is claimed is:] [1.] A fluid management system for dispensing an amount of a first fluid and monitoring a state of flow of the first fluid, the system comprising:a chamber having an inlet and an outlet and a septum separating the first fluid and a second fluid;an energy imparter for applying

[ What is claimed is:] [1.] A fluid management system for dispensing an amount of a first fluid and monitoring a state of flow of the first fluid, the system comprising:a chamber having an inlet and an outlet and a septum separating the first fluid and a second fluid;an energy imparter for applying a time varying amount of energy on the second fluid;a transducer for measuring a pressure of the second fluid within the chamber and creating a signal of the pressure; anda processor for determining whether the first fluid has stopped flowing based on the signal.