External heat exchange pad for patient

• US 20060235496A1
• Filed: 04/04/2006
• Published: 10/19/2006
• Est. Priority Date: 04/18/2005
• Status: Active Grant

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Inventors: Collins, Kenneth A., Worthen, William J.
• Granted Patent: US 7,892,269 B2
• Time in Patent Office: Days
• US Class Current: 607/96
• CPC Class Codes: A61F 2007/0056 for cooling
• CPC Class Codes: A61F 2007/0095 with a temperature indicator
• CPC Class Codes: A61F 2007/126 for invasive application, e.g. for introducing into blood vessels
• CPC Class Codes: A61F 7/0085 Devices for generating hot or cold treatment fluids
• CPC Class Codes: A61F 7/12 Devices for heating or cooling internal body cavities

Abstract

An intravenous heat exchange catheter and/or an external cooling pad/bladder can be used to maintain hypothermia in, e.g., a cardiac arrest patient, but to accelerate the cooling process the patient first can be infused with cold saline before the opportunity arises to connect the catheter or pad to the patient.

Claims

1-20. -20. (canceled)

21. A patient temperature control system including at least one bladder through which working fluid can flow, the bladder being positionable against the skin of a patient, a skin conditioning hydrogel being disposed on a surface of the bladder facing the skin when the bladder is positioned against a patient.

24. The system of claim 21, wherein the hydrogel is glycerol in sorbolene.

22. A patient temperature control system including at least one bladder through which working fluid can flow, a silver sulphur diazene cream being disposed on a surface of the bladder facing the skin when the bladder is positioned against a patient.

23. A patient temperature control system including at least one bladder through which working fluid can flow, a surface of the bladder facing away from a patient when the bladder is positioned against the skin of the patient being backed by a foam that conforms to pressure caused by the weight of the patient.

25. A patient temperature control system including at least one bladder through which working fluid can flow, a zinc paste being disposed on a surface of the bladder facing the skin when the bladder is positioned against a patient