Method for a central venous line catheter having a temperature control system
View Patent ↗A kit of parts comprises a system and instructions for use for controlling patient temperature which uses a central venous line catheter having a heat exchange element. The central venous line catheter is provided with one or more lumens for providing access to the central blood supply of the patient and with additional lumens for communicating heat exchange fluid to the heat exchange element. Heat exchange fluid temperature is controlled through a feed back loop iii which patient temperature is sensed and used to control a temperature control unit comprising a heating device and/or a cooling device in heat exchange relationship with the heat exchange fluid. A tubing set transports the heat exchange fluid between the central venous line and the temperature control unit, with a pump serving to circulate the fluid in a closed fluid circuit in the system.
1. An apparatus for delivery of thermal treatment and medication to a selected area in the vascular system of a patient, comprising:
an elongated flexible catheter assembly;
at least two heat transfer elements on a distal portion of said catheter assembly insertable to said selected area in said vascular system;
a temperature control lumen within said catheter assembly, said temperature control lumen being in fluid flow communication with said heat transfer elements, to supply a temperature controlled fluid to said heat transfer elements;
a medicament delivery lumen within said catheter assembly, said medicament delivery lumen being in fluid flow communication with said distal portion of said catheter assembly, to deliver a medicament to said distal portion of said catheter assembly;
a return lumen in said catheter assembly, said return lumen being in fluid flow communication with said heat transfer elements, to receive said temperature controlled fluid from said heat transfer elements; and
an exit port in said distal portion of said catheter assembly, said exit port being in fluid flow communication with said medicament delivery lumen to allow said medicament to exit said catheter assembly in the proximity of said heat transfer elements.
2. The apparatus of claim 1 , wherein fluid communication is established between the temperature control lumen and at least one of the heat transfer elements by at least one input port and fluid communication is established between the temperature control lumen and at least one of the heat transfer elements by at least one output port, the output port being larger than the input port.
3. The apparatus of claim 1 , further comprising a patient anchor on the assembly and configured for affixing to a patient's skin.
4. The apparatus of claim 2 , further comprising a patient anchor on the assembly and configured for affixing to a patient's skin.