HEATING/COOLING SYSTEM FOR INDWELLING HEAT EXCHANGE CATHETER
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Accused Products
Abstract
A cooling system for an indwelling heat exchange catheter includes a heat exchange bath that is configured to receive a conduit that carries saline to and from the catheter. A heating/cooling fluid is in the bath and exchanges heat with the saline. The heating/cooling fluid flows through a heat exchanger that includes a refrigerant and two variable speed DC compressor for removing heat from the refrigerant. A gear pump circulates the working fluid to and from the catheter and is removably engaged with a pump support platform.
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Citations
44 Claims
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1-22. -22. (canceled)
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23. A heat exchange system for an indwelling closed loop heat exchange catheter, comprising:
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a conduit configured to carry working fluid to and from the catheter; and a flow detector in communication with the conduit for detecting when working fluid is flowing through the conduit, wherein the flow detector comprises; a clear housing; and a paddle wheel rotatably disposed therein. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A heat exchanger comprising:
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at least one computer readable storage medium; and at least one processor configured to execute instructions on the computer readable storage medium to undertake logic comprising; determining whether pulses from a flow detector of the heat exchanger are being received; responsive to a determination that pulses are being received, determining whether a timer has expired; and responsive to a determination that the timer has expired, returning an error message; and responsive to a determination that pulses are not being received, returning an error message. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42)
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43. A heat exchanger comprising:
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at least one computer readable storage medium; and at least one processor configured to execute instructions on the computer readable storage medium to undertake logic comprising; periodically energizing a heater of the heat exchange system; determining whether an increase in temperature satisfying a threshold is indicated; responsive to a determination that an increase in temperature satisfying a threshold is indicated, returning a message indicating an error in circulation of a glycol circuit of the heat exchanger. - View Dependent Claims (44)
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Specification