Cooling system for indwelling heat exchange catheter
First Claim
Patent Images
1. An apparatus for changing and maintaining the core temperature of the body of a patient, the apparatus comprising:
- an indwelling catheter including a catheter body having an inflow lumen and an outflow lumen, and at least one heat exchange element communicating with the lumens and distally disposed on the catheter body;
at least one means for measuring a core body temperature of the patient;
a primary fluid circuit in fluid flow communication with the indwelling catheter, the primary circuit adapted to contain a first circulating fluid therein;
a secondary fluid circuit which is in heat exchange relationship with the primary fluid circuit and adapted to contain a second circulating fluid therein, the first and second fluids being in fluid-flow isolation from each other; and
a temperature control module receiving the signal from the means for measuring for changing the temperature of the second fluid to approach a desired core body temperature of the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for exchanging heat with the body of a patient for cooling or warming the patient provides for automatic temperature control in accordance with the monitored temperature of the patient. The system comprises a temperature control module and temperature probes for making body core temperature measurements. The body core temperature measurements are used to control the temperature of fluid circulating within the fluid circuit.
-
Citations
6 Claims
-
1. An apparatus for changing and maintaining the core temperature of the body of a patient, the apparatus comprising:
-
an indwelling catheter including a catheter body having an inflow lumen and an outflow lumen, and at least one heat exchange element communicating with the lumens and distally disposed on the catheter body; at least one means for measuring a core body temperature of the patient; a primary fluid circuit in fluid flow communication with the indwelling catheter, the primary circuit adapted to contain a first circulating fluid therein; a secondary fluid circuit which is in heat exchange relationship with the primary fluid circuit and adapted to contain a second circulating fluid therein, the first and second fluids being in fluid-flow isolation from each other; and a temperature control module receiving the signal from the means for measuring for changing the temperature of the second fluid to approach a desired core body temperature of the patient. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification