Heating/ cooling system for indwelling heat exchange catheter
First Claim
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1. A fluid pump assembly, comprising:
- a pump support platform supporting a motor; and
a pump removably engaged with the pump support platform, the pump pumping working fluid to and from an intravascular catheter, the motor being removably coupled to the pump to provide power to the pump when the pump is engaged with the pump support platform;
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, 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 pump support platform, the pump being received by the support collars in the pump bore.
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Abstract
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.
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Citations
17 Claims
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1. A fluid pump assembly, comprising:
- a pump support platform supporting a motor; and
a pump removably engaged with the pump support platform, the pump pumping working fluid to and from an intravascular catheter, the motor being removably coupled to the pump to provide power to the pump when the pump is engaged with the pump support platform;
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, 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 pump support platform, the pump being received by the support collars in the pump bore. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- a pump support platform supporting a motor; and
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8. A fluid pump assembly, comprising:
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a pump support platform supporting a motor; and a pump removably engaged with the pump support platform, the pump pumping working fluid to and from an intravascular catheter, the motor being removably coupled to the pump to provide power to the pump when the pump is engaged with the pump support platform; the pump support platform including a first arcuate support collar and a second arcuate support collar, the collars being received in a pump bore in the pump support platform, the pump being received by the support collars in the pump bore. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A fluid pump assembly, comprising:
- a pump support platform supporting a motor; and
a pump removably engaged with the pump support platform, the pump pumping working fluid to and from an intravascular catheter, the motor being magnetically coupled to the pump to provide power to the pump when the pump is engaged with the pump support platform, 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, 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 pump support platform, the pump being received by the support collars in the PUMP bore. - View Dependent Claims (16, 17)
- a pump support platform supporting a motor; and
Specification