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.

公开(公告)号：US20230233838A1

公开(公告)日：2023-07-27

申请号：US18048329

申请日：2022-10-20

Applicant: TC1 LLC

Inventor： Phyllis K. Yuen ,  Michael Butler ,  Stephen D. Pacetti

IPC: A61M60/827 ,  A61M60/13 ,  A61M60/216 ,  A61M60/408 ,  A61M60/174

CPC classification number: A61M60/827 ,  A61M60/13 ,  A61M60/174 ,  A61M60/216 ,  A61M60/408

Abstract: The present disclosure provides a catheter pump system comprising components configured to prevent blood from entering the catheter pump system. The catheter pump system includes a septum including a moisture absorbing material and/or an impeller assembly including an impeller shaft coated on an inner or an outer surface with a clot activator.

公开(公告)号：US20230201562A1

公开(公告)日：2023-06-29

申请号：US18146105

申请日：2022-12-23

Applicant: TC1 LLC

Inventor： Michael L. Green ,  Stephen D. Pacetti

IPC: A61M60/148 ,  A61M60/13

CPC classification number: A61M60/148 ,  A61M60/13

Abstract: A septum for use in a catheter pump is provided herein. The septum includes a first elastomeric septa disc. The first elastomeric septa disc is punctured. The puncture forms an aperture in the first elastomeric septa disc. The aperture is passable by a guidewire.

公开(公告)号：US20230201564A1

公开(公告)日：2023-06-29

申请号：US18069939

申请日：2022-12-21

Applicant: TC1 LLC

Inventor： Michael R. Butler ,  Stephen D. Pacetti ,  Phyllis K. Yuen

IPC: A61M60/414 ,  A61M60/148

CPC classification number: A61M60/414 ,  A61M60/148

Abstract: In various embodiments, a catheter pump is disclosed herein. The catheter pump can include an elongated catheter body having a distal portion including an expandable cannula having an inlet and an outlet. An impeller assembly can include an impeller shaft and one or more blades. The impeller blades can draw blood into the expandable cannula when rotated. Further, an expandable support can have a mounting portion. The mounting portion can have a cylindrical member disposed on the impeller shaft and can include an enlarged distal portion at a distal end of the impeller shaft and a nose member. Further, a re-sealable member can be disposed in the enlarged distal portion of the cylindrical member and can have a path through the re-sealable member through which a guidewire can be positioned. Further, the nose member can have an aperture distal of the re-sealable member for passage of the guidewire.

公开(公告)号：US20230201561A1

公开(公告)日：2023-06-29

申请号：US18069923

申请日：2022-12-21

Applicant: TC1 LLC

Inventor： Michael R. Butler ,  Keif M. Fitzgerald ,  Phyllis K. Yuen ,  Stephen D. Pacetti

IPC: A61M60/148 ,  A61M60/414

CPC classification number: A61M60/148 ,  A61M60/414 ,  A61M60/237

Abstract: In various embodiments, a catheter pump is disclosed herein. The catheter pump can include an elongated catheter body having a distal portion including an expandable cannula having an inlet and an outlet. An impeller assembly can include an impeller shaft and one or more blades. The impeller blades can draw blood into the expandable cannula when rotated. Further, an expandable support can have a mounting portion disposed on the impeller shaft distal of the impeller body. The mounting portion can have a cylindrical member disposed on the impeller shaft and can include an enlarged distal portion having an inner diameter greater than the enlarged diameter at a distal end of the impeller shaft. Further, a re-sealable member can be disposed in the enlarged distal portion of the cylindrical member and can have a path through the re-sealable member through which a guidewire can be positioned.