公开(公告)号：US20180326131A1

公开(公告)日：2018-11-15

申请号：US16020674

申请日：2018-06-27

Applicant: TC1 LLC

Inventor： Paul F. Muller ,  Keif M. Fitzgerald ,  Richard L. Keenan ,  Veronica J. Neiman

IPC: A61M1/10 ,  A61B90/00 ,  A61M1/12

CPC classification number: A61M1/1008 ,  A61B2090/064 ,  A61B2090/3966 ,  A61M1/101 ,  A61M1/1024 ,  A61M1/1034 ,  A61M1/1082 ,  A61M1/1084 ,  A61M1/1086 ,  A61M1/122 ,  A61M1/125 ,  A61M2205/13 ,  A61M2205/32 ,  A61M2205/3306 ,  A61M2205/3334 ,  A61M2205/52

Abstract: Sensors for catheter pumps are disclosed herein. The catheter pump can include a catheter assembly comprising a catheter and a cannula coupled to a distal portion of the catheter. The cannula can have a proximal port for permitting the flow of blood therethrough. The catheter assembly can include a sensor to be disposed near the proximal port. A processing unit can be programmed to process a signal detected by the sensor. The processing unit can comprise a computer-readable set of rules to evaluate the signal to determine a position of the cannula relative to an aortic valve of a patient.

公开(公告)号：US10117980B2

公开(公告)日：2018-11-06

申请号：US15266864

申请日：2016-09-15

Applicant: TC1 LLC

Inventor： Richard L. Keenan ,  Keif M. Fitzgerald

IPC: A61M5/00 ,  A61M1/10 ,  A61M1/12 ,  F04D1/00 ,  F04D25/06

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. The expandable cannula can have a delivery profile and an operational profile larger than the delivery profile. An impeller assembly can include an impeller shaft, and an impeller body can include one or more blades. The impeller blades can draw blood into the cannula when rotated. Further, an expandable support can have a mounting portion disposed on the impeller shaft distal of the impeller body and a cannula contact portion for reducing a change in tip gap due to bending of the cannula. The cannula contact portion can be disposed distal of the mounting portion.

公开(公告)号：US10086121B2

公开(公告)日：2018-10-02

申请号：US15172664

申请日：2016-06-03

Applicant: TC1 LLC

Inventor： Keif M. Fitzgerald ,  Richard L. Keenan ,  William J. Harrison

IPC: A61N1/362 ,  A61M1/10 ,  A61M1/12

Abstract: A catheter pump is provided that includes a rotatable impeller and an elongate cannula. The elongate cannula has a mesh that has a plurality of circumferential members disposed about the impeller. The elongate cannula has a plurality of axial connector extending between a proximal side of a distal circumferential member and a distal side of a proximal circumferential member. The circumferential members are radially self-expandable. The cannula is configured to minimize fracture within at least in the distal zone of the mesh as the elongated cannula moves into a sheathing device.

公开(公告)号：US20180055980A1

公开(公告)日：2018-03-01

申请号：US15794609

申请日：2017-10-26

Applicant: TC1 LLC

Inventor： Paul F. Muller ,  Keif M. Fitzgerald ,  Richard L. Keenan

IPC: A61M1/10 ,  A61M1/12

CPC classification number: A61M1/1008 ,  A61M1/101 ,  A61M1/1024 ,  A61M1/1034 ,  A61M1/1082 ,  A61M1/1084 ,  A61M1/122 ,  A61M1/125

Abstract: A catheter pump is disclosed herein. The catheter pump can include an elongate catheter body and an impeller assembly coupled to a distal portion of the elongate catheter body. The impeller assembly can comprise an impeller configured to rotate during operation of the catheter pump. A tube can extend through at least portions of the elongate catheter body and the impeller assembly. The tube can extend distal the impeller and can be configured to remain in the portions of the elongate catheter body and the impeller assembly during operation of the catheter pump.

公开(公告)号：US20240215966A1

公开(公告)日：2024-07-04

申请号：US18602328

申请日：2024-03-12

Applicant: TC1 LLC

Inventor： Keif M. Fitzgerald ,  Mojan Kassayan ,  Ted Su

IPC: A61B17/00 ,  A61M60/13 ,  A61M60/135 ,  A61M60/216

CPC classification number: A61B17/00234 ,  A61M60/13 ,  A61M60/135 ,  A61M60/216 ,  A61B2017/00243 ,  A61B2017/00336 ,  A61B2017/00867 ,  A61M2205/04

Abstract: A catheter system includes a catheter, a recovery sheath, and an outer sheath assembly. The catheter includes an elongate body having an expandable medical device coupled with a distal end thereof. The recovery sheath is disposed around a proximal section of the catheter body, and is sized and shaped to receive the expandable medical device therein. The recovery sheath is axially movable relative to the catheter body. The outer sheath assembly includes an outer sheath disposed over the catheter body. The outer sheath includes an elongate body that extends from a proximal end to a distal end, where the proximal end of the outer sheath body is positioned distally of the recovery sheath. The outer sheath includes a retention section sized and shaped to receive the expandable medical device therein and constrain the expandable medical device in a stored configuration. The outer sheath is removable from the catheter body.

公开(公告)号：US12011582B2

公开(公告)日：2024-06-18

申请号：US17107140

申请日：2020-11-30

Applicant: TC1 LLC

Inventor： Paul F. Muller ,  Keif M. Fitzgerald ,  Michael R. Butler ,  Todd Jenkins

IPC: A61M60/414 ,  A61M25/00 ,  A61M25/10 ,  A61M60/13 ,  A61M60/216 ,  A61M60/422 ,  A61M60/808 ,  A61M60/829

CPC classification number: A61M60/414 ,  A61M25/0026 ,  A61M60/13 ,  A61M60/216 ,  A61M60/422 ,  A61M60/808 ,  A61M60/829 ,  A61M2025/0079 ,  A61M2025/1022

Abstract: A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. A motor assembly can impart rotation on the impeller through the shaft assembly, the motor assembly comprising a motor which rotates the shaft assembly. The catheter pump system can include a fluid pathway which conveys fluid proximally during operation of the catheter pump system. A seal can be disposed between the motor assembly and the impeller. The seal can be configured to impede or prevent the fluid from the fluid pathway from entering the motor assembly at least about an outer periphery of the shaft assembly. The seal can comprise an opening through which a portion of the shaft assembly extends.

公开(公告)号：US20230076777A1

公开(公告)日：2023-03-09

申请号：US18054482

申请日：2022-11-10

Applicant: TC1 LLC

Inventor： Keif M. Fitzgerald ,  Richard L. Keenan ,  William J. Harrison

IPC: A61M60/857 ,  A61M60/825 ,  A61M60/508 ,  A61M60/411 ,  A61M60/13 ,  A61M60/174 ,  A61M60/216 ,  A61M60/81

Abstract: A catheter pump is provided that includes a rotatable impeller and an elongate cannula. The elongate cannula has a mesh that has a plurality of circumferential members disposed about the impeller. The elongate cannula has a plurality of axial connector extending between a proximal side of a distal circumferential member and a distal side of a proximal circumferential member. The circumferential members are radially self-expandable. The cannula is configured to minimize fracture within at least in the distal zone of the mesh as the elongated cannula moves into a sheathing device.

公开(公告)号：US20230071204A1

公开(公告)日：2023-03-09

申请号：US18054494

申请日：2022-11-10

Applicant: TC1 LLC

Inventor： Richard L. Keenan ,  Keif M. Fitzgerald

IPC: A61M60/148 ,  A61M60/857 ,  A61M60/81 ,  A61M60/411 ,  A61M60/825 ,  A61M60/13 ,  A61M60/174 ,  A61M60/216 ,  A61M60/508

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. The expandable cannula can have a delivery profile and an operational profile larger than the delivery profile. An impeller assembly can include an impeller shaft, and an impeller body can include one or more blades. The impeller blades can draw blood into the cannula when rotated. Further, an expandable support can have a mounting portion disposed on the impeller shaft distal of the impeller body and a cannula contact portion for reducing a change in tip gap due to bending of the cannula. The cannula contact portion can be disposed distal of the mounting portion.

公开(公告)号：US11491322B2

公开(公告)日：2022-11-08

申请号：US15654451

申请日：2017-07-19

Applicant: TC1 LLC

Inventor： Paul F. Muller ,  Keif M. Fitzgerald ,  Michael R. Butler ,  Todd Jenkins

IPC: A61M1/10 ,  A61M60/869 ,  A61M60/135 ,  A61M60/205 ,  A61M60/414 ,  A61M60/829 ,  A61M60/50

Abstract: A catheter pump system is disclosed. The catheter pump system can include a shaft assembly and an impeller coupled with a distal portion of the shaft assembly. The catheter pump system can include a motor assembly, the motor assembly comprising a chamber and a shaft-driving portion disposed in the chamber. The shaft-driving portion can be configured to impart rotation to the impeller through the shaft assembly. The chamber can be filled with a gas that at least partially surrounds the shaft-driving portion. A fluid pathway can convey fluid proximally during operation of the catheter pump system. A bypass pathway can be in fluid communication with the fluid pathway, the bypass pathway configured to direct at least a portion of the fluid to bypass the chamber.

公开(公告)号：US20220008052A1

公开(公告)日：2022-01-13

申请号：US17175210

申请日：2021-02-12

Applicant: TC1 LLC

Inventor： Keif M. Fitzgerald ,  Mojan Kassayan ,  Ted Su

IPC: A61B17/00 ,  A61M60/135 ,  A61M60/216

Abstract: A catheter system includes a catheter, a recovery sheath, and an outer sheath assembly. The catheter includes an elongate body having an expandable medical device coupled with a distal end thereof. The recovery sheath is disposed around a proximal section of the catheter body, and is sized and shaped to receive the expandable medical device therein. The recovery sheath is axially movable relative to the catheter body. The outer sheath assembly includes an outer sheath disposed over the catheter body. The outer sheath includes an elongate body that extends from a proximal end to a distal end, where the proximal end of the outer sheath body is positioned distally of the recovery sheath. The outer sheath includes a retention section sized and shaped to receive the expandable medical device therein and constrain the expandable medical device in a stored configuration. The outer sheath is removable from the catheter body.