公开(公告)号：US20180064862A1

公开(公告)日：2018-03-08

申请号：US15812471

申请日：2017-11-14

Applicant: TC1 LLC

Inventor： Richard L. Keenan ,  Keif M. Fitzgerald ,  Veronica J. Neiman ,  Phyllis Yuen

IPC: A61M1/10 ,  A61M25/06

CPC classification number: A61M1/1024 ,  A61M1/1008 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1017 ,  A61M1/102 ,  A61M1/1025 ,  A61M1/1031 ,  A61M1/1034 ,  A61M1/122 ,  A61M1/125 ,  A61M1/127 ,  A61M25/0068 ,  A61M25/0097 ,  A61M25/0108 ,  A61M25/0113 ,  A61M25/0662 ,  A61M25/09041 ,  A61M39/06

Abstract: In one embodiment, a catheter pump assembly is disclosed. The catheter pump assembly can include an impeller assembly. A catheter body can be coupled with the proximal end of the impeller assembly, the catheter body having a reduced stiffness section disposed proximally of the impeller assembly. A sheath assembly can be configured to be translate over the catheter body relative to the impeller assembly from an impeller assembly delivery position to an impeller assembly deployment position. When the sheath assembly is in the impeller assembly deployment position, a reduction in stiffness is provided between the distal end of the sheath assembly and the impeller assembly.

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.

公开(公告)号：US11547845B2

公开(公告)日：2023-01-10

申请号：US16849700

申请日：2020-04-15

Applicant: TC1 LLC

Inventor： Alan Schenck ,  Michael L. Green ,  Keif M. Fitzgerald ,  Paul F. Muller ,  Joseph P. Sullivan ,  Keith Schubert ,  Peter W. Bristol ,  Jeffrey Paul Mills ,  Paul C. Leonard ,  Richard L. Keenan

IPC: A61M60/122 ,  A61M60/148 ,  A61M1/36 ,  A61M5/142 ,  A61M5/172 ,  A61M60/13 ,  A61M60/216 ,  A61M60/531 ,  A61M60/414 ,  A61M60/878 ,  A61M60/546 ,  A61M60/279

Abstract: Various embodiments of a system for priming a catheter assembly are disclosed herein. For example, the system can include a catheter assembly including an elongate body and an operative device coupled thereto. The system can also include a priming vessel configured to receive insertion of the operative device therein. The priming vessel can include a proximal portion secured to the distal portion of the elongate body such that the elongate body is in fluid communication with the priming vessel. The priming vessel can also include a distal end through which air is expelled when a fluid is channeled through the elongate body and into the priming vessel to expel air from within the catheter assembly.

公开(公告)号：US11478628B2

公开(公告)日：2022-10-25

申请号：US16442106

申请日：2019-06-14

Applicant: TC1 LLC

Inventor： Paul F. Muller ,  Keif M. Fitzgerald

IPC: A61M60/205 ,  A61M60/50 ,  A61M60/824 ,  A61M60/829 ,  A61M60/857 ,  A61M60/135 ,  A61M60/148 ,  A61M60/414 ,  A61M60/818

Abstract: A heart pump is disclosed herein. The heart pump can include a cannula having one or more outlets. An impeller can be positioned in the cannula. The impeller can be configured to pump blood through the outlets along a longitudinal axis when the impeller is rotated at an operational speed. The heart pump can be configured to adjust an effective area of the outlets while the impeller is rotating or to provide relative motion between the cannula and the impeller along the longitudinal axis while the impeller is rotating.

公开(公告)号：US11331470B2

公开(公告)日：2022-05-17

申请号：US16779186

申请日：2020-01-31

Applicant: TC1 LLC

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

IPC: A61M60/148 ,  A61M60/857 ,  A61M60/135 ,  A61M60/205 ,  A61M60/211 ,  A61M60/414 ,  A61M60/577

Abstract: A securing assembly for connecting a drive assembly to a driven assembly of a catheter pump includes a motor housing, a flow diverter housing, and a flow diverter positioned within the flow diverter housing, wherein one of the flow diverter or the flow diverter housing includes a securement device. The securing assembly also includes a cap coupled between the motor housing and the flow diverter housing. The cap includes a central opening and a locking recess extending circumferentially about the central opening. Insertion of the flow diverter into the central opening causes securement device to engage the locking recess.

公开(公告)号：US20210275793A1

公开(公告)日：2021-09-09

申请号：US17330057

申请日：2021-05-25

Applicant: TC1 LLC

Inventor： Richard L. Keenan ,  Keif M. Fitzgerald ,  Veronica J. Neiman ,  Phyllis Yuen

IPC: A61M60/00 ,  A61M60/824

Abstract: A catheter pump assembly is provided. The catheter pump assembly includes a proximal portion, a distal portion, a catheter body having a lumen extending along a longitudinal axis between the proximal and distal portions, an impeller disposed at the distal portion, and a stator disposed at a downstream location of the impeller to straighten flow downstream from the impeller. The stator is collapsible from a deployed configuration to a collapsed configuration.

公开(公告)号：US11058865B2

公开(公告)日：2021-07-13

申请号：US16110648

申请日：2018-08-23

Applicant: TC1 LLC

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

IPC: A61M60/857 ,  A61M60/40 ,  A61M60/00 ,  A61M60/122 ,  A61M60/135 ,  A61M60/148 ,  A61M60/205 ,  A61M60/414

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：US11045638B2

公开(公告)日：2021-06-29

申请号：US15840117

申请日：2017-12-13

Applicant: TC1 LLC

Inventor： Richard L. Keenan ,  Keif M. Fitzgerald ,  Veronica J. Neiman ,  Phyllis Yuen

IPC: A61M60/00 ,  A61M60/824 ,  A61M60/135 ,  A61M60/148 ,  A61M60/205 ,  A61M60/414 ,  A61M60/829 ,  A61M60/857 ,  A61M60/871

Abstract: A catheter pump assembly is provided that includes an elongate polymeric catheter body, a cannula, and a tubular interface. The elongate polymeric catheter body has a proximal end and a distal end. The cannula has an expandable portion disposed distally of the elongate polymeric catheter body. The cannula can also have another tubular portion that is proximal to the distal portion. The tubular interface has an outer surface configured to be joined to the tubular portion of the cannula and an inner surface. The inner surface is disposed over the distal end of the elongate polymeric catheter body. The tubular interface has a plurality of transverse channels extending outward from the inner surface of the tubular interface. An outer surface of the elongate polymeric catheter body projects into the transverse channels to mechanically integrate the elongate polymeric catheter body with the tubular interface.

公开(公告)号：US20210077686A1

公开(公告)日：2021-03-18

申请号：US17107341

申请日：2020-11-30

Applicant: TC1 LLC

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

IPC: A61M1/10 ,  A61M1/12

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：US20200164125A1

公开(公告)日：2020-05-28

申请号：US16779186

申请日：2020-01-31

Applicant: TC1 LLC

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

IPC: A61M1/10

Abstract: A securing assembly for connecting a drive assembly to a driven assembly of a catheter pump includes a motor housing, a flow diverter housing, and a flow diverter positioned within the flow diverter housing, wherein one of the flow diverter or the flow diverter housing includes a securement device. The securing assembly also includes a cap coupled between the motor housing and the flow diverter housing. The cap includes a central opening and a locking recess extending circumferentially about the central opening. Insertion of the flow diverter into the central opening causes securement device to engage the locking recess.