PRODUCTS RELATING ISOLATION

Brand	Owner	Address	Description
PHARM LYSE	PHARMINGEN	11555 Sorrento Valley Road, Su E San Diego CA 92121	products relating to the isolation of blood cell constituents;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

Apparatus for detecting failure of an isolation device includes a current sensor to sense current through the isolation device and a circuit responsive to the current sensor output signal and to an enable signal that controls the isolation device for providing an Early Failure Warning (EFW) signal indicative of whether the isolation device has failed. The enable signal is at a first logic level when the isolation device is on and is brought to a second logic level to disable and test the isolation device. Also described is a method of detecting a failure of an isolation device including disabling the isolation device, sensing a current through the isolation device, and providing an EFW signal indicating that the isolation device has failed if the current through the isolation device is greater than a predetermined level when the isolation device is disabled.