Heating/cooling system for indwelling heat exchange catheter
AssigneeAlsius Corporation
InventorsMark Whitebook, Wayne Arthur Noda, Suzanne C. Winter, Sean Nash, Dan Jenkins
Life of this patent
Estimating the term…
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 a variable speed DC compressor for removing heat from the refrigerant. A coolant pump circulates the heating/cooling fluid between the heat exchanger and the heat exchange bath.
Claims20
A heat exchange system for an indwelling heat exchange catheter, comprising:
- a heat exchange bath configured to receive a conduit carrying working fluid to and from the catheter;
- a heating/coolant fluid in the bath to exchange heat with the working fluid;
- a heat exchanger through which the heating/coolant fluid flows, the heat exchanger including a refrigerant and a variable speed DC compressor;
- and
- a heating/coolant fluid pump circulating the heating/coolant fluid between the heat exchanger and the heat exchange bath.
A heat exchange system for an indwelling heat exchange catheter, comprising:
- a working fluid circuit connected to the catheter to carry a working fluid to and from the catheter;
- a heating/cooling circuit thermally coupled to the working fluid circuit, the heating/cooling circuit including a heating/cooling fluid that exchanges heat with the working fluid;
- and
- a refrigerating circuit thermally coupled to the heating/cooling circuit, the refrigerating circuit including a refrigerant that exchanges heat with the heating/cooling fluid.
Dependencies are inferred from the claim text.