Abstract:
A system for controlling a patient temperature uses a central venous line catheter (100) having axially spaced distal and proximal heat exchange balloons (102/104). The central venous line catheter (100) is provided with one or more lumens (128) for providing access to the central blood supply of the patient, and with additional lumens (106/108) for communicating heat exchange fluid to the balloons (102/104). Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit (50) comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set (120/122) transports the heat exchange fluid between the central venous line (100) and the temperature control unit (50), with a pump serving to circulate the fluid in a closed fluid circuit in the system.
Abstract:
A system for controlling a patient temperature uses a central venous line catheter (100) having axially spaced distal and proximal heat exchange balloons (102/104). The central venous line catheter (100) is provided with one or more lumens (128) for providing access to the central blood supply of the patient, and with additional lumens (106/108) for communicating heat exchange fluid to the balloons (102/104). Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit (50) comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set (120/122) transports the heat exchange fluid between the central venous line (100) and the temperature control unit (50), with a pump serving to circulate the fluid in a closed fluid circuit in the system.
Abstract:
A system for controlling a patient temperature uses a central venous line catheter (100) having axially spaced distal and proximal heat exchange balloons (102/104). The central venous line catheter (100) is provided with one or more lumens (128) for providing access to the central blood supply of the patient, and with additional lumens (106/108) for communicating heat exchange fluid to the balloons (102/104). Heat exchange fluid temperature is controlled through a feed back loop in which patient temperature is sensed and used to control a temperature control unit (50) comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set (120/122) transports the heat exchange fluid between the central venous line (100) and the temperature control unit (50), with a pump serving to circulate the fluid in a closed fluid circuit in the system.