The Alaris System is an infusion system. The PC Unit Keys may become stuck or unresponsive and may lead to an infusion delay or prevent clinicians from changing fluid or medication infusions on the affected device.

http://www.fda.gov/medical-devices/medical-device-recalls/becton-dickinson-bd-carefusion-303-inc-recalls-alaristm-system-pc-unit-and-pc-unit-front-case-keypad