H - Electricity – 05 – B
Patent
H - Electricity
05
B
H05B 1/02 (2006.01) A23L 3/365 (2006.01) A61J 1/00 (2006.01) A61M 5/44 (2006.01) F25D 17/06 (2006.01) G05D 23/19 (2006.01) A61M 1/02 (2006.01)
Patent
CA 2082386
APPARATUS FOR THE RAPID THAWING AND FREEZING OF BLOOD AND BLOOD COMPONENTS ABSTRACT An apparatus (110) for freezing or thawing a bag (10) of blood or blood components includes a means (136) for holding the bag (10) of frozen blood or blood components and a means (118) for creating a flow of air (120,180). Depending upon whether the apparatus (110) is being used to thaw or to freeze the bag (10) of blood or blood components, the flow of air (120, 180) is either heated or refrigerated. The flow of air (180) is directed to impinge upon the surface of the bag (10) to freeze or to thaw the contents thereof. The apparatus further includes a means (140) for measuring the temperature of the frozen blood or blood components. In the disclosed embodiment, the flow of heated or refrigerated air (180) is directed at the bag (10) in such a manner as to cause a turbulent airflow at the air/bag interface, thereby to increase the heat transfer between the bag (10) and the air. Also in the disclosed embodiment, a control system (158) automatically monitors the detected temperature and terminates the freezing or thawing procedure when the contents of the bag (10) reach a predetermined temperature.
Beard John R.
Duncan Alexander
Harms Frank H.
Finlayson & Singlehurst
Lifesource Advanced Blood Bank Systems Inc.
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