Patent ID: 9039395
Filing Date: 2015-05-26
Classification: A61M,F04B,G01M,G05D

Abstract:
1. A fluid handling system for pumping fluid to and from a patient configured to perform a dry cartridge integrity test, the system comprising: a reusable component comprising: a processor; a control chamber; and a pressure transducer configured to measure a gas pressure associated with the control chamber; and a disposable pumping cartridge comprising: a flexible membrane; a rigid portion comprising a pump chamber, the flexible membrane overlying the pump chamber; an inlet and an outline line; and a valve configured to isolate the pump chamber of the disposable pumping cartridge, wherein the disposable pumping cartridge is configured to mate with the reusable component, wherein the control chamber of the reusable component mates with the pump chamber of the disposable pumping cartridge, and wherein the processor is configured to: supply the control chamber with a gas at a predetermined pressure; open the valve such that the pump chamber of the disposable pumping cartridge is not isolated from the surroundings; with the valve open, monitor the gas pressure associated with the control chamber using the pressure transducer over a predetermined period of time; and determine if the change in gas pressure associated with the control chamber exceeds a maximum allowable predetermined limit.