Motor assembly with heat exchanger for catheter pump
First Claim
1. A catheter pump system comprising:
- an impeller;
a catheter body having a lumen therethrough;
a drive shaft disposed inside the catheter body and coupled with the impeller at a distal portion of the drive shaft; and
a motor assembly comprising;
a rotor mechanically coupled with a proximal portion of the drive shaft; and
a stator assembly disposed about the rotor and configured to cause the rotor to rotate; and
a heat exchanger coupled with the motor assembly to remove heat therefrom, the heat exchanger comprising a volume to receive fluid, wherein the heat exchanger is disposed about a portion of the stator assembly.
3 Assignments
0 Petitions
Accused Products
Abstract
A catheter pump is disclosed. The catheter pump can include an impeller and a catheter body having a lumen therethrough. The catheter pump can also include a drive shaft disposed inside the catheter body. A motor assembly can include a chamber. The motor assembly can include a rotor disposed in the at least a portion of the chamber, the rotor mechanically coupled with a proximal portion of the drive shaft such that rotation of the rotor causes the drive shaft to rotate. The motor assembly can also comprise a stator assembly disposed about the rotor. The motor assembly can also include a heat exchanger disposed about the stator assembly, the heat exchanger may be configured to direct heat radially outward away from the stator assembly, the rotor, and the chamber.
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Citations
31 Claims
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1. A catheter pump system comprising:
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an impeller; a catheter body having a lumen therethrough; a drive shaft disposed inside the catheter body and coupled with the impeller at a distal portion of the drive shaft; and a motor assembly comprising; a rotor mechanically coupled with a proximal portion of the drive shaft; and a stator assembly disposed about the rotor and configured to cause the rotor to rotate; and a heat exchanger coupled with the motor assembly to remove heat therefrom, the heat exchanger comprising a volume to receive fluid, wherein the heat exchanger is disposed about a portion of the stator assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A catheter pump system comprising:
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an impeller; a catheter body having a lumen therethrough; a drive shaft disposed inside the catheter body and coupled with the impeller at a distal portion of the drive shaft, the drive shaft configured such that rotation of the drive shaft causes the impeller to rotate; and a motor assembly comprising; a motor housing; a chamber disposed in the motor housing, at least a portion of the chamber in fluid communication with the lumen of the catheter body; and a damper configured to reduce the transmission of vibrations from the motor assembly. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. A catheter pump system comprising:
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an impeller; a catheter body having a lumen therethrough; a drive shaft disposed inside the catheter body and coupled with the impeller at a distal portion of the drive shaft; and a motor assembly comprising; a housing; a stator assembly within the housing; a rotor positioned within the stator assembly, the rotor commutated by the stator, the rotor connected to a proximal portion of the drive shaft; and a thermal layer disposed within the housing and configured to transfer heat away from the stator and/or the rotor. - View Dependent Claims (28, 29, 30, 31)
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Specification