公开(公告)号：US20230066175A1

公开(公告)日：2023-03-02

申请号：US17983265

申请日：2022-11-08

Applicant: TC1 LLC

Inventor： Onur Dur ,  Kevin Bourque

IPC: A61M60/419 ,  A61M60/82 ,  A61M60/148 ,  A61M60/422 ,  A61M60/824 ,  A61M60/812 ,  A61M60/242 ,  A61M60/178

Abstract: The invention generally relates to improved medical blood pump devices, systems, and methods. For example, blood pumps may be provided that include a housing defining a blood flow path between an inlet and an outlet. A rotor may be positioned in the blood flow path. A motor stator may be driven to rotate the rotor to provide the blood flow through the pump. Axial and/or tilt stabilization components may be provided to increase an axial and/or tilt stabilization of the rotor within the blood flow path. In some embodiments, biasing forces are provided that urge the rotor toward a bearing component. The biasing force may be provided by adjusting drive signals of the motor stator. Additionally, or alternatively, one or more magnets (e.g., permanent/stator magnets) may be provided to bias the rotor in the upstream and/or downstream direction (e.g., toward a bearing (chamfer, step, conical), or the like).

公开(公告)号：US20220403847A1

公开(公告)日：2022-12-22

申请号：US17821401

申请日：2022-08-22

Applicant: White Knight Fluid Handling Inc.

Inventor： Tom Simmons ,  Geoffrey White ,  Courtney Parsons

IPC: F04D13/06 ,  F04D29/051 ,  F04D29/058 ,  F04D25/02 ,  F04D13/02 ,  H02K7/09 ,  A61M60/82

Abstract: A pump may include a stator, a rotor, and an impeller. The stator may include one or more electromagnets and one or more permanent magnets. The rotor may include an armature, one or more complementary permanent magnets, and a pull magnet configured to position the rotor in an axial direction. The rotor may be disposed within the stator. The complementary permanent magnets and the one or more permanent magnets of the stator may create magnetic bearings. The armature may be aligned with at least one of the electromagnets of the stator and configured to rotate the rotor with respect to the stator. The impeller may be coupled to the rotor.

公开(公告)号：US11511104B2

公开(公告)日：2022-11-29

申请号：US17008984

申请日：2020-09-01

Applicant: TC1 LLC

Inventor： Onur Dur ,  Kevin Bourque

IPC: A61M60/82 ,  A61M60/148 ,  A61M60/419 ,  A61M60/422 ,  A61M60/824 ,  A61M60/812 ,  A61M60/242 ,  A61M60/178

Abstract: The invention generally relates to improved medical blood pump devices, systems, and methods. For example, blood pumps may be provided that include a housing defining a blood flow path between an inlet and an outlet. A rotor may be positioned in the blood flow path. A motor stator may be driven to rotate the rotor to provide the blood flow through the pump. Axial and/or tilt stabilization components may be provided to increase an axial and/or tilt stabilization of the rotor within the blood flow path. In some embodiments, biasing forces are provided that urge the rotor toward a bearing component. The biasing force may be provided by adjusting drive signals of the motor stator. Additionally, or alternatively, one or more magnets (e.g., permanent/stator magnets) may be provided to bias the rotor in the upstream and/or downstream direction (e.g., toward a bearing (chamfer, step, conical), or the like).

公开(公告)号：US11471662B2

公开(公告)日：2022-10-18

申请号：US16800273

申请日：2020-02-25

Applicant: EVERHEART SYSTEMS INC.

Inventor： Neil H. Akkerman ,  Greg S. Aber

IPC: A61M60/806 ,  A61M60/148 ,  A61M60/824 ,  A61M60/216 ,  A61M60/82 ,  A61M60/205 ,  A61M60/419

Abstract: A blood pump can include a pump housing, an impeller, and a hub. The pump housing can be configured to move blood from an inlet to an outlet thereof. The impeller can be housed in the pump housing, have a plurality of blades joined by a central ring, and be radially supported at the central ring by a bearing. The hub can transmit torque to the impeller using a radial magnetic coupling.

公开(公告)号：US20220257922A1

公开(公告)日：2022-08-18

申请号：US17608007

申请日：2020-04-09

Applicant: Calon Cardio-Technology Ltd.

Inventor： Matthew Paul Biginton ,  Sajal Gurung ,  Robyn Williams

IPC: A61M60/825 ,  A61M60/422 ,  A61M60/81 ,  A61M60/178 ,  A61M60/226 ,  A61M60/237 ,  A61M60/82

Abstract: A cardiac pump (1) comprising a cardiac pump housing (7), a cardiac pump rotor (8), and a bearing assembly (23), the bearing assembly (23) being configured to support the cardiac pump rotor (8) within the cardiac pump housing (7) for rotation about a rotational axis (A-A) of the rotor (8), wherein the cardiac pump rotor (8) comprises a tip profile having rotational variance about the rotational axis (A-A).

公开(公告)号：US20220168557A1

公开(公告)日：2022-06-02

申请号：US17672375

申请日：2022-02-15

Applicant: BiVACOR Inc.

Inventor： Nicholas Greatrex ,  Daniel Timms ,  Matthias Kleinheyer

IPC: A61M60/82 ,  A61M60/50 ,  A61M60/122 ,  A61M60/148 ,  A61M60/205 ,  A61M60/419 ,  A61M60/422 ,  F04D1/00 ,  F04D29/048 ,  F04D29/24 ,  F04D29/42

Abstract: A heart pump including a housing forming a cavity including at least one inlet and at least one outlet, an impeller provided within the cavity, the impeller including vanes for urging fluid from the inlet to the outlet upon rotation of the impeller, a drive that rotates the impeller within the cavity, a magnetic bearing including at least one bearing coil that controls an axial position of the impeller within the cavity and a controller. The controller includes an electronic processing device that monitors changes in a bearing indicator in response to a perturbation in blood flow, the bearing indicator being at least partially indicative of operation of the magnetic bearing and controls the drive to thereby selectively change a rotational speed of the impeller at least partially in accordance with changes in the bearing indicator.

公开(公告)号：US20220161020A1

公开(公告)日：2022-05-26

申请号：US17439212

申请日：2020-03-16

Applicant: Abiomed Europe GmbH

Inventor： Marius Grauwinkel ,  Wolfgang Kerkhoffs

IPC: A61M60/422 ,  A61M60/13 ,  A61M60/237 ,  A61M60/221 ,  A61M60/818 ,  A61M60/82 ,  B23H1/00

Abstract: This invention concerns an intravascular blood pump for percutaneous insertion into a patient's blood vessel. The blood pump comprises a pump casing having a blood flow inlet and a blood flow outlet, an impeller arranged in said pump casing so as to be rotatable about an axis of rotation. The impeller has blades sized and shaped for conveying blood from the blood flow inlet to the blood flow outlet. The blood pump comprises a drive unit for rotating the impeller, the drive unit comprising a magnetic core including a plurality of posts arranged about the axis of rotation and a back plate connecting the posts and extending between the posts in an intermediate area. A coil winding is disposed around each of the posts. The coil windings are controllable so as to create a rotating magnetic field, wherein the impeller comprises a magnetic structure arranged to interact with the rotating magnetic field so as to cause rotation of the impeller. A material of at least a portion of at least one of the posts is integral with a material of the intermediate area of the back plate. Further, the invention concerns a method of manufacturing a magnetic core and a method of manufacturing an intravascular blood pump.

公开(公告)号：US20220118243A1

公开(公告)日：2022-04-21

申请号：US17484174

申请日：2021-09-24

Applicant: BiVACOR Inc.

Inventor： Daniel Timms

IPC: A61M60/82 ,  A61M60/50 ,  A61M60/122 ,  A61M60/148 ,  A61M60/205 ,  A61M60/419 ,  A61M60/422 ,  F04D1/00 ,  F04D29/048 ,  F04D29/24 ,  F04D29/42

Abstract: A heart pump including: a housing forming a cavity including: at least one inlet aligned with an axis of the cavity; and, at least one outlet provided in a circumferential outer wall of the cavity; an impeller provided within the cavity, the impeller including vanes for urging fluid from the inlet to the outlet; and, a drive for rotating the impeller in the cavity and wherein a flow path through the pump has a minimal cross-sectional area of at least 50 mm2.

公开(公告)号：US11154700B2

公开(公告)日：2021-10-26

申请号：US16528251

申请日：2019-07-31

Applicant: MI-VAD, INC.

Inventor： Sudhir Kushwaha ,  Zain Khalpey

IPC: A61M60/135 ,  A61F2/82 ,  A61M60/50 ,  A61M60/82 ,  A61M60/148 ,  A61M60/205 ,  A61M60/419 ,  A61M60/562 ,  A61M60/824 ,  A61M60/871 ,  A61F2/07 ,  A61F2/90 ,  A61F2/95 ,  A61F2/06 ,  A61M60/00 ,  A61M60/422 ,  A61M60/818 ,  A61M60/833 ,  A61M60/857

Abstract: A ventricular assist device includes a stent for placement within a cardiac artery and arranged for placement, the stent arranged to have an open configuration defining a flow path, a rotor sized to fit within the stent and arranged for percutaneous placement the flow path, the rotor including a surface disposed about a central portion and angled with respect to the flow path and having a first plurality of magnets. A collar is sized for placement about the cardiac artery and includes a stator. A power source is coupled to the stator, and the stator and the rotor are arranged to rotate the rotor about an axis. A timing control module controls a rotational speed of the rotor. Accordingly, the surface of the rotor is arranged to move blood along the flow path in response to rotation of the rotor.

公开(公告)号：US20210324861A1

公开(公告)日：2021-10-21

申请号：US17360779

申请日：2021-06-28

Applicant: Berlin Heart GmbH

Inventor： Marcus Granegger ,  Robert Steingräber ,  Jonas Fabian Krone

IPC: F04D7/00 ,  A61M60/50 ,  A61M60/82 ,  A61M60/205 ,  A61M60/419 ,  F04D3/02 ,  F04D13/06 ,  G01L13/00 ,  G01N11/02 ,  H02P6/182 ,  H03H17/02

Abstract: Methods and apparatuses for determining operational parameters of a blood pump comprising a rotor which transports the blood are provided. The change in the behaviour of at least one first and one second operational parameter, independently from each other, of the pump, is determined. A determination of the flow through the pump and/or the difference in pressure across the pump and/or the viscosity of the blood takes into account the determined change in behaviour of the at least two operational parameters. A modelling for a dynamic model of the known quantities may be carried out and an estimation method using a Kalman filter may be used.