HEATING/COOLING SYSTEM FOR INDWELLING HEAT EXCHANGE CATHETER
A cooling system for an indwelling heat exchange catheter includes a heat exchange bath that is configured to receive a conduit that carries saline to and from the catheter. A heating/cooling fluid is in the bath and exchanges heat with the saline. The heating/cooling fluid flows through a heat exchanger that includes a refrigerant and two variable speed DC compressor for removing heat from the refrigerant. A gear pump circulates the working fluid to and from the catheter and is removably engaged with a pump support platform.
1 - 22 . (canceled)
23 . An assembly, comprising:
a platform supporting a motor; and
a pump engaged with the platform for pumping working fluid to and from a cooling member for a patient, the motor being coupled to the pump to provide power to the pump when the pump is engaged with the platform;
wherein the pump support platform includes a first arcuate support collar and a second arcuate support collar, the collars being received in a pump bore in the platform, the pump being received by the support collars in the pump bore.
24 . The assembly of claim 23 , wherein the pump is removably coupled to the motor.
25 . The assembly of claim 23 , comprising:
a magnet extending from the pump and coupled thereto;
a cup-shaped member coupled to the motor to receive the magnet and magnetically engage the magnet such that as the cup-shaped member is rotated by the motor it causes the magnet to rotate which, in turn, causes the pump to pump fluid.
26 . The assembly of claim 23 , wherein the platform comprises:
a pump locking bore, the pump removably engaging the pump locking bore.
27 . The assembly of claim 23 , comprising:
at least one sensor for detecting the presence of the pump when it is engaged with the platform.
28 . The assembly of claim 23 , wherein the pump is a diaphragm pump.
29 . The assembly of claim 23 , wherein the platform includes an overflow bore through which any saline that may leak from the pump can flow.
30 . The assembly of claim 23 , wherein the pump is a gear pump.
31 . The assembly of claim 23 , wherein a magnetic coupling is established between the cup-shaped member and the magnet to be broken under a predetermined overpressure.
32 . An assembly, comprising:
a support supporting a motor; and
a pump engaged with the support and configured for pumping working fluid to and from a heat exchange member, the motor being coupled to the pump to provide power to the pump;
the support including a first arcuate support collar and a second arcuate support collar, the collars being received in a pump bore in the support, the pump being received by the support collars in the pump bore.
33 . The assembly of claim 32 , comprising:
at least one sensor for detecting the presence of the pump when it is engaged with the support.
34 . The assembly of claim 32 , wherein the pump is a diaphragm pump.
35 . The assembly of claim 32 , wherein the support includes an overflow bore through which any saline that may leak from the pump can flow.
36 . The assembly of claim 32 , wherein the pump is a gear pump.
37 . The assembly of claim 32 , comprising:
a magnet extending from the pump and coupled thereto;
a cup-shaped member coupled to the motor to receive the magnet and magnetically engage the magnet such that as the cup-shaped member is rotated by the motor it causes the magnet to rotate which, in turn, causes the pump to pump fluid.
38 . The assembly of claim 32 , comprising first and second magnetic elements respectively coupled to the pump and the motor to couple the pump to the motor, a magnetic coupling being established by the magnetic elements to be broken under a predetermined overpressure.
39 . An assembly, comprising:
a support configured for supporting a motor;
a pump engaged with the support and configured to pump working fluid to and from a heat exchange member to exchange heat with a patient, the motor being couplable to the pump to provide power to the pump;
at least a first arcuate support collar and a second arcuate support collar, the collars being received in a pump bore in the support, the pump being received by the support collars in the pump bore.
40 . The assembly of claim 39 , comprising:
first and second magnetic elements respectively coupled to the pump and the motor to couple the pump to the motor, a magnetic coupling being established by the magnetic elements to be broken under a predetermined overpressure.
41 . The assembly of claim 39 , wherein the pump is a gear pump.
42 . The assembly of claim 39 , wherein the first magnetic element is established at least in part by a magnet extending from the pump and coupled thereto and the second magnetic element is established at least in part by a cup-shaped member coupled to the motor to receive the magnet and magnetically engage the magnet such that as the cup-shaped member is rotated by the motor it causes the magnet to rotate which, in turn, causes the pump to pump fluid.