公开(公告)号：US20230096277A1

公开(公告)日：2023-03-30

申请号：US17823389

申请日：2022-08-30

Applicant: TC1 LLC

Inventor： Sarah E. Van Keulen ,  Ted Y Su ,  Phyllis K. Yuen ,  Stephen D. Pacetti

IPC: A61M60/414 ,  A61M60/13 ,  A61M60/174 ,  A61M60/216 ,  F16C19/18

Abstract: A catheter pump system includes a shaft assembly, an impeller coupled to a distal portion of the shaft assembly, and a motor assembly coupled to a proximal portion of the shaft assembly. The motor assembly is configured to drive the impeller via the shaft assembly. The motor assembly includes a rotor, a stator disposed radially outward of the rotor, and a rotor chamber disposed radially between the stator and the rotor. The rotor chamber at least partially encloses the rotor. The rotor chamber is at least partially filled with a lubricant to reduce a friction of the rotor during rotation thereof.