FLUID DISINFECTION UNIT FOR PATIENT TEMPERATURE CONTROL SYSTEM

摘要

A fluid disinfection unit [40] is incorporated into a patient warming/cooling system [10], to reduce the risk of bacteria buildup in the warming/cooling fluid, which is typically water. More particularly, a mobile housing [17] contains the operable components for circulating wanning/cooling fluid to a patient [12], including a pump [23], a heating/cooling source [24], a reservoir [22], a controller [26] and a control panel [32] to assist a user in operating the components. The reservoir [22] has upper [ 22a] and lower [22b] sections, for replenishing water and circulating water, respectively. A UV source [40] is mounted so as to extend through both reservoir sections [22a, 22b], to sinuiltaneo usly emit UV light into both sections during circulation of the wanning/cooling fluid, thereby to disinfect the water contained therein. The UV source [40] includes a bulb [42] protected within a transparent cover [44] that is completely transparent, and has been treated so as to be shatterproof. A sensor [70] mounted to the housing [17 ] detects the UV emission level within the reservoir [22], and generates a signal to indicate the on/off status of the UV bulb [42], and/or the magnitude of the UV light within the reservoir [22].