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US 2020/0268548 A1Published application
Patient heat exchange system with two and only two fluid loops
AssigneeZOLLCirculation, Inc.
InventorsJeremy Thomas Dabrowiak, Craig Wendell Pendry, Christoph Matthias Pistor
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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.
Claims20
A heat exchange system for exchanging heat with working fluid from an intravascular heat exchange catheter or an external heat exchange pad, comprising:
- a working fluid circuit configured for circulating working fluid between a fluid cassette and the catheter or pad;
- and
- a refrigerant circuit configured for circulating refrigerant between a compressor and sides of cold plates between which the cassette is disposable.
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.
Method comprising:
- circulating refrigerant between a compressor and a cold plate;
- and
- circulating working fluid between an intravascular heat exchange catheter and a fluid cassette disposed on contact with the cold plate to exchange heat between the refrigerant and the working fluid through the cold plate.
Dependencies are inferred from the claim text.