公开(公告)号：US12092114B2

公开(公告)日：2024-09-17

申请号：US17107457

申请日：2020-11-30

Applicant: ABIOMED, Inc.

Inventor： Thorsten Siess

IPC: A61M60/422 ,  A61M60/165 ,  A61M60/237 ,  A61M60/822 ,  F04D13/06 ,  F04D29/048 ,  F04D29/18 ,  F04D29/40 ,  A61M60/135 ,  A61M60/148 ,  A61M60/82 ,  A61M60/824 ,  A61M60/831

CPC classification number: F04D13/06 ,  A61M60/165 ,  A61M60/237 ,  A61M60/422 ,  A61M60/822 ,  F04D29/048 ,  F04D29/18 ,  F04D29/406 ,  A61M60/135 ,  A61M60/148 ,  A61M60/82 ,  A61M60/824 ,  A61M60/831

Abstract: Methods and systems are provided for the circulation of blood using a purge-free miniature pump. In one embodiment, a pump is provided that may comprise a housing including a rotor and a stator within a drive unit. In this embodiment, the pump may establish a primary blood flow through the space between the drive unit and the housing and a secondary blood flow between the rotor and stator. In another embodiment, a pump establishes a primary blood flow outside the housing and a secondary blood flow between the rotor and stator. In yet another embodiment, a method is provided for introducing the pump into the body and circulating blood using the pump.

公开(公告)号：US11959497B2

公开(公告)日：2024-04-16

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 ,  A61M60/165 ,  A61M60/196 ,  A61M60/216 ,  A61M60/419 ,  A61M60/422 ,  A61M60/515 ,  A61M60/554 ,  A61M60/562 ,  A61M60/82 ,  A61M60/822 ,  A61M60/825 ,  A61M60/857 ,  F04D3/02 ,  F04D13/06 ,  F04D29/048 ,  G01L13/00 ,  G01N11/02 ,  H02P6/182 ,  H03H17/02

CPC classification number: F04D7/00 ,  A61M60/165 ,  A61M60/196 ,  A61M60/216 ,  A61M60/419 ,  A61M60/422 ,  A61M60/515 ,  A61M60/554 ,  A61M60/562 ,  A61M60/82 ,  A61M60/822 ,  A61M60/825 ,  A61M60/857 ,  F04D3/02 ,  F04D13/0606 ,  G01L13/00 ,  G01N11/02 ,  H02P6/182 ,  H03H17/0202 ,  A61M2205/3334 ,  A61M2205/3365 ,  F04D29/048 ,  H03H2017/0205

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.

公开(公告)号：US11872385B2

公开(公告)日：2024-01-16

申请号：US16980795

申请日：2019-03-13

Applicant: THE CLEVELAND CLINIC FOUNDATION

Inventor： William Smith

IPC: A61M1/00 ,  A61M60/82 ,  A61M60/824 ,  A61M60/148 ,  A61M60/178 ,  A61M60/825 ,  A61M60/812 ,  A61M60/422 ,  A61M60/237

CPC classification number: A61M60/82 ,  A61M60/148 ,  A61M60/178 ,  A61M60/237 ,  A61M60/422 ,  A61M60/812 ,  A61M60/824 ,  A61M60/825 ,  A61M2205/103 ,  A61M2210/125

Abstract: A blood pump (10) includes a pump housing (30) having a pump inlet (16) and a pump outlet (18) spaced apart along a longitudinally extending central pump axis (28). The blood pump (10) also includes a rotating assembly (100) comprising an impeller (104). The blood pump (10) further includes partial arc journal bearings (160, 180) that support the rotating assembly (100) for rotation in the housing (30). The rotating assembly (100) is rotatable relative to the housing (30) to pump blood from the pump inlet (16) to the pump outlet (18).

公开(公告)号：US11857777B2

公开(公告)日：2024-01-02

申请号：US18061896

申请日：2022-12-05

Applicant: PROCYRION, INC.

Inventor： Ronald G. Earles ,  Jason J. Heuring ,  Christopher A. Durst ,  Omar Benavides

IPC: A61M60/139 ,  A61M60/419 ,  A61M60/221 ,  A61M60/824 ,  F04D13/02 ,  F04D29/046 ,  A61M60/585 ,  A61M60/226 ,  A61M60/13 ,  A61M60/825 ,  F04D7/00 ,  F04D13/06 ,  F04D29/043 ,  F04D29/52 ,  F04D29/18 ,  A61M60/808 ,  A61M60/82

CPC classification number: A61M60/139 ,  A61M60/13 ,  A61M60/221 ,  A61M60/226 ,  A61M60/419 ,  A61M60/585 ,  A61M60/824 ,  A61M60/825 ,  F04D7/00 ,  F04D13/026 ,  F04D13/06 ,  F04D29/043 ,  F04D29/0467 ,  F04D29/181 ,  F04D29/528 ,  A61M60/808 ,  A61M60/82

Abstract: A blood flow assist system can include an impeller assembly including an impeller shaft and an impeller on the impeller shaft, a primary flow pathway disposed along an exterior surface of the impeller. The system can include a rotor assembly at a proximal portion of the impeller shaft. A secondary flow pathway can be disposed along a lumen of the impeller shaft. During operation of the blood flow assist system, blood can be pumped proximally along the primary flow pathway and the secondary flow pathway. The system can include a sleeve bearing distal the impeller. The system can include a drive unit having a distal end disposed distal a proximal end of the second impeller. The drive unit comprising a drive magnet and a drive bearing between the drive magnet and the impeller assembly.

公开(公告)号：US11801378B2

公开(公告)日：2023-10-31

申请号：US17429951

申请日：2020-12-30

Applicant: SHENZHEN CORE MEDICAL TECHNOLOGY CO., LTD.

Inventor： Shunzhou Yu

IPC: A61M60/82 ,  F04D13/06 ,  F04D25/08 ,  F04D29/041 ,  F04D29/18

CPC classification number: A61M60/82 ,  F04D13/06 ,  F04D25/082 ,  F04D29/0413 ,  F04D29/181

Abstract: An interventional ventricular assist device (100), including: an interventional tube (10). a motor assembly (30), a perfusion cylinder (40), and an impeller assembly (20). The interventional tube (10) has a liquid inlet (11) and a liquid outlet (12). The impeller assembly (20) includes an impeller (21), accommodated within the interventional tube (10) and rotatable to enable a liquid to flow into the interventional tube (10) via the liquid inlet (11) and out therefrom via the liquid outlet (12). The motor assembly (30) is configured to generate a rotating magnetic field to drive the impeller (21) to rotate and generate an attraction to the impeller (21). A perfusate injected from the perfusion cylinder (40) is adapted to provide a thrust to the impeller assembly (20), whereby the impeller (21) is suspendedly rotatable in the interventional tube (10) under a combined action of the thrust and the attraction.

公开(公告)号：US11781551B2

公开(公告)日：2023-10-10

申请号：US17240204

申请日：2021-04-26

Applicant: TC1 LLC

Inventor： Masamichi Yanai ,  Shunzhou Yu ,  Tao Zhang

IPC: F04D13/06 ,  F04D29/047 ,  F04D29/048 ,  A61M60/82 ,  A61M60/422 ,  A61M60/824 ,  A61M60/237 ,  A61M60/232 ,  A61M60/538

CPC classification number: F04D13/064 ,  A61M60/232 ,  A61M60/237 ,  A61M60/422 ,  A61M60/538 ,  A61M60/82 ,  A61M60/824 ,  F04D13/0646 ,  F04D13/0666 ,  F04D29/047 ,  F04D29/048 ,  A61M2205/3334

Abstract: A blood pump system includes a pump housing and an impeller for rotating in a pump chamber within the housing. The impeller has a first side and a second side opposite the first side. The system includes a stator having drive coils for applying a torque to the impeller and at least one bearing mechanism for suspending the impeller within the pump chamber. The system includes a position control mechanism for moving the impeller in an axial direction within the pump chamber to adjust a size of a first gap and a size of a second gap, thereby controlling a washout rate at each of the first gap and the second gap. The first gap is defined by a distance between the first side and the housing and the second gap is defined by a distance between the second side and the pump housing.

公开(公告)号：US11754075B2

公开(公告)日：2023-09-12

申请号：US17258853

申请日：2019-07-09

Applicant: KARDION GMBH

Inventor： Armin Schuelke ,  Ingo Stotz ,  Johannes Bette ,  David Minzenmay

IPC: F04D13/02 ,  A61M60/804 ,  A61M60/237 ,  A61M60/419 ,  A61M60/408 ,  A61M60/174 ,  F04D3/02 ,  F04D29/18 ,  F04D29/20 ,  F04D29/60 ,  A61M60/416 ,  A61M60/82 ,  A61M60/857

CPC classification number: F04D13/024 ,  A61M60/174 ,  A61M60/237 ,  A61M60/408 ,  A61M60/416 ,  A61M60/419 ,  A61M60/804 ,  A61M60/82 ,  A61M60/857 ,  F04D3/02 ,  F04D29/181 ,  F04D29/20 ,  F04D29/60 ,  A61M2207/00

Abstract: An impeller (1) for an implantable vascular support system (2) is provided. The impeller includes an impeller body (3) having a first longitudinal portion (4) and a second longitudinal portion (5) forming a first inner rotor (12) having at least one magnet encapsulated in the second longitudinal portion (5). At least one blade (6) formed in the first longitudinal portion (4) is configured to axially convey a fluid upon rotation. A second outer rotor (13) extends axially and includes at least one magnet. The first rotor (12) and the second rotor (13) form a magnetic coupling (14). The magnets of the first and second rotor being arranged to partially axially overlap with an axial offset and are entirely radially offset.

公开(公告)号：US20230270993A1

公开(公告)日：2023-08-31

申请号：US18005473

申请日：2021-07-15

Applicant: ASSISTANCE PUBLIQUE - HOPITAUX DE PARIS

Inventor： Pichoy DANIAL

IPC: A61M60/178 ,  A61M60/232 ,  A61M60/422 ,  A61M60/857 ,  A61M60/82

CPC classification number: A61M60/178 ,  A61M60/82 ,  A61M60/232 ,  A61M60/422 ,  A61M60/857

Abstract: An unloading blood pump includes a casing suitable for being incorporated into a human body, a turbine rotated by a rotor, a pumping chamber body mounted in a casing housing the turbine, an inlet port for sucking the blood from a suction cannula to the pumping chamber body and an outlet port for expelling blood from the pumping chamber to a reinjection cannula, wherein the pump is configured, depending on its power supply, to allow a nominal constant continuous flow of between 0.05 L/min and 0.5 L/min in order to reduce a capillary pressure of the lungs and/or of the left atrium and/or of the left ventricle.

公开(公告)号：US20230173253A1

公开(公告)日：2023-06-08

申请号：US18084011

申请日：2022-12-19

Applicant: BiVACOR Inc.

Inventor： Daniel Timms ,  Matthias Kleinheyer ,  Nicholas Greatrex

IPC: A61M60/82 ,  A61M60/148 ,  A61M60/419 ,  A61M60/824 ,  F04D13/06 ,  A61M60/196 ,  A61M60/822 ,  A61M60/178 ,  A61M60/422 ,  A61M60/806 ,  A61M60/216 ,  A61M60/183

CPC classification number: A61M60/82 ,  A61M60/148 ,  A61M60/419 ,  A61M60/824 ,  F04D13/06 ,  A61M60/196 ,  A61M60/822 ,  A61M60/178 ,  A61M60/422 ,  A61M60/806 ,  A61M60/216 ,  A61M60/183 ,  A61M2205/04 ,  A61M2205/103 ,  A61M2205/332 ,  H02K7/14

Abstract: A heart pump including a housing defining 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 is provided within the cavity, the impeller including a rotor and vanes mounted on the rotor for urging fluid from the inlet radially outwardly to the outlet. A drive is provided for rotating the impeller in the cavity, the drive including a plurality of circumferentially spaced permanent drive magnets mounted within and proximate a first face of the rotor, adjacent drive magnets having opposing polarities and a plurality of circumferentially spaced drive coils mounted within the housing proximate a first end of the cavity, each coil being wound on a respective drive stator pole of a drive stator and being substantially radially aligned with the drive magnets, the drive coils being configured to generate a drive magnetic field that cooperates with the drive magnets to thereby rotate the impeller. A magnetic bearing is also provided to thereby at least one of control an axial position of the impeller and at least partially restrain radial movement of the impeller.

公开(公告)号：US11668321B2

公开(公告)日：2023-06-06

申请号：US17057423

申请日：2019-05-27

Applicant: Berlin Heart GmbH

Inventor： Hendryk Richert ,  Oliver Peters

IPC: F04D29/52 ,  A61M60/237 ,  A61M60/226 ,  A61M60/419 ,  A61M60/221 ,  A61M60/824 ,  A61M60/825 ,  A61M60/82 ,  F04D29/047 ,  F04D29/18 ,  A61M60/17 ,  A61M60/816 ,  F04D15/00

CPC classification number: F04D29/528 ,  A61M60/17 ,  A61M60/221 ,  A61M60/226 ,  A61M60/237 ,  A61M60/419 ,  A61M60/816 ,  A61M60/82 ,  A61M60/824 ,  A61M60/825 ,  F04D15/0088 ,  F04D29/0476 ,  F04D29/181 ,  A61M2205/0238 ,  A61M2205/3317 ,  A61M2205/3327

Abstract: A pump is provided with a housing and with an upstream inlet and a downstream outlet and a fluid channel with a channel axis, said fluid channel being arranged between the inlet and outlet. A rotor which can be brought into rotation by way of a motor is arranged within the fluid channel. Furthermore, a sensor arrangement is provided which can detect an inclination of the rotation axis of the rotor.