PATIENT HEAT EXCHANGE SYSTEM WITH TRANSPARENT WALL FOR VIEWING CIRCULATING REFRIGERANT
First Claim
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1. A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad, comprising:
- a refrigerant circuit configured for circulating refrigerant between a compressor and first and second cold plates between which a working fluid cassette is disposable,at least a first one of the cold plates having a transparent outer wall through which a person can view refrigerant flowing in the refrigerant circuit.
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Abstract
A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad includes a working fluid that circulates between the catheter or pad and a fluid cassette, and a refrigerant system that flows against the outer sides of cold plates between which the cassette is disposed. An outer wall of the system is transparent so that a person can view the refrigerant as it circulates, ensuring proper operation.
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Citations
20 Claims
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1. A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad, comprising:
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a refrigerant circuit configured for circulating refrigerant between a compressor and first and second cold plates between which a working fluid cassette is disposable, at least a first one of the cold plates having a transparent outer wall through which a person can view refrigerant flowing in the refrigerant circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. System comprising:
two heat transfer plates parallel to each other and defining a slot between them configured for receiving a working fluid cassette through which working fluid flows to and from an intravascular catheter in a working fluid circuit; a refrigerant circuit supplying refrigerant to at least one of the plates to exchange heat therewith, the refrigerant circuit including a compressor, the refrigerant circuit being the only fluid circuit in thermal contact with the working fluid circuit other than a bloodstream of a patient in which the catheter can be positioned, at least a first heat transfer plate being at least partially transparent to permit viewing the refrigerant as it flows in the refrigerant circuit. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. Method comprising:
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circulating refrigerant between a compressor and a cold plate; and enabling a person to view the refrigerant as it circulates. - View Dependent Claims (19, 20)
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Specification