Method and apparatus for effecting hyperthermic treatment

A - Human Necessities – 61 – M

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A61M 25/00 (2006.01)

Patent

CA 1144841

ABSTRACT Apparatus for providing a constant flow of temperature controlled liquid into and out of a heat exchanger in heat exchange relation to a flow of blood through said heat exchanger which forms a part of a systemic extracorporeal flow circuit of a human patient for systemically treating the patient hyperthermically to retard the growth of cancer cells in the patient. The apparatus comprises first and second reservoirs for respectively containing first and second bodies of liquid; first and second pumps for pumping liquid from said first and second reservoirs, respectively; means for directing a predetermined constant flow of liquid from said pumps into said heat exchanger; means for directing the liquid from said heat exchanger to said reservoirs; means for maintaining the liquid in said first reservoir at a substantially constant elevated temperature of approximately 45°C; means for maintaining the liquid in said second reservoir at a substantially constant reduced temperature of approximately 30°C; and means for varying the amount of liquid from said first pump directed into said liquid flow directing means from 0 to 100% while proportionately varying the liquid from said second pump directed into said liquid flow directing means from 100% to 0 and while maintaining the constant flow as aforesaid.

399707

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