US 12,168,120 B2
Gas-filled chamber for catheter pump motor assembly
Paul F. Muller, San Carlo, CA (US); Keif M. Fitzgerald, San Jose, CA (US); Michael R. Butler, Dublin, CA (US); and Todd Jenkins, San Jose, CA (US)
Assigned to TC1 LLC, St. Paul, MN (US)
Filed by TC1 LLC, St. Paul, MN (US)
Filed on Nov. 30, 2020, as Appl. No. 17/107,219.
Application 17/107,219 is a continuation of application No. 15/654,451, filed on Jul. 19, 2017, granted, now 11,491,322.
Claims priority of provisional application 62/365,258, filed on Jul. 21, 2016.
Prior Publication US 2021/0077685 A1, Mar. 18, 2021
Int. Cl. A61M 60/00 (2021.01); A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/205 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/422 (2021.01); A61M 60/808 (2021.01); A61M 60/829 (2021.01); A61M 60/869 (2021.01); A61M 60/50 (2021.01)
CPC A61M 60/869 (2021.01) [A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/205 (2021.01); A61M 60/216 (2021.01); A61M 60/414 (2021.01); A61M 60/422 (2021.01); A61M 60/808 (2021.01); A61M 60/829 (2021.01); A61M 60/50 (2021.01)] 21 Claims
OG exemplary drawing
 
1. A percutaneous catheter pump system comprising:
a catheter having a proximal end and a distal end;
a blood pump coupled to the distal end of the catheter; and,
an electric motor coupled to the proximal end of the catheter for operating the blood pump at the distal end, the electric motor including:
a rotor supplying an output torque to the blood pump from an input electric current to the electric motor;
a flow diverter disposed at least partially about the rotor, wherein the flow diverter is configured to receive and channel a first portion of a return flow of liquid proximally at least partially about a periphery of the rotor, the return flow of liquid received by the flow diverter from the proximal end of the catheter; and
a bypass channel configured to receive a second portion of the return flow of liquid and channel the second portion proximally away from the flow diverter.