公开(公告)号：US11541224B2

公开(公告)日：2023-01-03

申请号：US16524554

申请日：2019-07-29

申请人： Cardiovascular Systems, Inc.

发明人： Joseph P. Higgins ,  Jeffrey R. Stone

IPC分类号： A61M60/00 ,  A61M60/10 ,  A61M60/148 ,  A61M60/554 ,  A61M60/808 ,  A61M60/546 ,  A61M60/13 ,  A61M60/216 ,  A61M60/411

摘要： The present invention provides an intravascular blood pump comprising an impeller housing and/or impeller blade(s) that may be expandable and collapsible. The blade(s) and/or impeller housing may be biased to expand or may be expanded by centrifugal forces generated during rotation of the impeller and blades with an operatively connected rotational motor.

公开(公告)号：US20230310829A1

公开(公告)日：2023-10-05

申请号：US18118574

申请日：2023-03-07

申请人： Boston Scientific Scimed Inc.

发明人： Cole Thomas Theobald ,  Brice Lee Shireman ,  Brian R. Reynolds ,  Beth Camilleri

IPC分类号： A61M60/10 ,  A61M60/237

CPC分类号： A61M60/10 ,  A61M60/237

摘要： A percutaneous circulatory support device includes a housing comprising an inlet and an outlet, an impeller disposed within the housing and being rotatable relative to the housing to cause blood to flow into the inlet, through the housing, and out of the outlet, a cannula coupled to the housing, the cannula extending between a proximal section and a distal section opposite the proximal section, and an expandable element configured for inflation and deflation, the expandable element having a length that is approximately equal to a length of a body of the cannula. The expandable element is configured for providing an increased stiffness to the cannula.

公开(公告)号：US20240358999A1

公开(公告)日：2024-10-31

申请号：US18444245

申请日：2024-02-16

申请人： Berlin Heart GmbH

发明人： Hendryk Richert ,  Oliver Peters

IPC分类号： A61M60/422 ,  A61M60/10 ,  A61M60/216 ,  A61M60/82

CPC分类号： A61M60/422 ,  A61M60/10 ,  A61M60/216 ,  A61M60/82

摘要： A pump, such as a blood pump, includes a pump chamber with a wall and a fluid connection between an inlet and an outlet, along with an impeller, a motor stator, and a control coil arranged on the pump chamber for exerting, together with first rotor magnets, a controllable axial force on the rotor. A control unit provides a control current for the control coil, in order to hold the rotor in a position which is spaced apart axially from the wall of the pump chamber. A first chamber magnet is arranged close to the winding of the control coil and opposite the first rotor magnet, in order to provide, together with the first rotor magnet, a force between the first rotor magnet and the first chamber magnet, and in order to orient the rotor relative to the wall of the pump chamber.

公开(公告)号：US11420040B2

公开(公告)日：2022-08-23

申请号：US16678897

申请日：2019-11-08

申请人： University of Louisville Research Foundation, Inc.

发明人： Moustafa Hassan Meki ,  Guruprasad Anapathur Giridharan ,  Palaniappan Sethu ,  Ayman Sabry El-Baz ,  Yu Wang

IPC分类号： A61M60/10 ,  A61M60/432 ,  A61M60/50 ,  A61M60/148

摘要： Methods, systems, and computer readable media for controlling ventricular assist devices are disclosed. In some embodiments, the method includes receiving at least one reference pump speed differential associated with a pump of a ventricular assist device; determining a filtered pump speed differential associated with the pump of a ventricular assist device; and adjusting, using a feedback based controller algorithm, current to the pump based on the at least one reference pump speed differential and the filtered pump speed differential. In some embodiments, the system includes a controller implemented using the non-transitory computer readable medium, wherein the controller is configured for receiving at least one reference pump speed differential associated with a pump of a ventricular assist device; determining a filtered pump speed differential associated with the pump of a ventricular assist device; and adjusting current to the pump based on the at least one reference pump speed differential and the filtered pump speed differential.

公开(公告)号：US12048937B2

公开(公告)日：2024-07-30

申请号：US16607343

申请日：2018-05-11

申请人： SCINOGY PRODUCTS PTY LTD

发明人： Ian Fitzpatrick ,  David James ,  Stephen Wilson

IPC分类号： B04B5/06 ,  A61M1/02 ,  A61M1/26 ,  A61M1/30 ,  A61M1/34 ,  A61M1/36 ,  A61M39/10 ,  A61M39/12 ,  A61M39/22 ,  A61M39/28 ,  A61M60/10 ,  A61M60/104 ,  A61M60/109 ,  B04B1/06 ,  B04B5/04 ,  B04B5/12 ,  B04B7/00 ,  B04B9/02 ,  B04B11/04 ,  B04B13/00 ,  C12M1/00 ,  C12M1/12 ,  C12M1/26 ,  C12M3/04 ,  G01N33/49 ,  A61M39/02

CPC分类号： B04B5/06 ,  A61M1/0259 ,  A61M1/0272 ,  A61M1/0281 ,  A61M1/029 ,  A61M1/26 ,  A61M1/262 ,  A61M1/308 ,  A61M1/3496 ,  A61M1/3604 ,  A61M1/3606 ,  A61M1/3616 ,  A61M1/3621 ,  A61M1/3622 ,  A61M1/3693 ,  A61M1/3696 ,  A61M39/10 ,  A61M39/1011 ,  A61M39/105 ,  A61M39/12 ,  A61M39/22 ,  A61M39/28 ,  A61M60/104 ,  A61M60/109 ,  B04B1/06 ,  B04B5/04 ,  B04B5/0442 ,  B04B5/12 ,  B04B7/00 ,  B04B9/02 ,  B04B11/04 ,  B04B13/00 ,  B04B13/003 ,  C12M23/26 ,  C12M23/28 ,  C12M27/10 ,  C12M29/00 ,  C12M33/10 ,  C12M37/04 ,  C12M47/04 ,  G01N33/491 ,  A61M1/3603 ,  A61M2039/0276 ,  A61M2039/226 ,  B04B2005/0435 ,  B04B2005/0464 ,  B04B2005/0471 ,  B04B2005/0478 ,  B04B2005/0492

摘要： Provided is a chamber configuration for a reverse flow centrifuge, and a reverse flow centrifuge system configured for low fluid volume and small radius rotation. The compact reverse flow centrifuge system has a reusable subsystem and a single use replaceable subsystem. The replaceable subsystem comprises a separation chamber, fluid delivery manifold and rotational mounting connecting the separation chamber to the fluid manifold. The single use replaceable subsystem provides a closed environment for execution of reverse flow centrifugation processes. The separation chamber has a substantially conical fluid enclosure portion connected to a neck portion, and a dip tube extends centrally through the conical fluid enclosure to provide a fluid path to the tip of the conical fluid enclosure.

公开(公告)号：US20240024551A1

公开(公告)日：2024-01-25

申请号：US17814547

申请日：2022-07-25

申请人： William M. Gosney ,  Dale B. Nixon

发明人： William M. Gosney ,  Dale B. Nixon

IPC分类号： A61M1/36 ,  A61M60/10

CPC分类号： A61M1/36 ,  A61M60/10 ,  A61M2205/12

摘要： An apparatus for locating and venting pathogen cells in blood. A cassette has a plurality of thin holding chambers that are filled with blood drawn from a patient. A light source illuminates each of the holding chambers and passes light to an underlying sensor array such that the cells in the blood produce shadow images of the cells in the sensor array. A processor performs pattern recognition to identify and locate the pathogen cells by use of an image library. After the pathogen cells are located, a pump is operated to move the identified cells to a processing zone. When each identified cell reaches the processing zone, a control voltage is generated to open a valve to vent the identified pathogen cells. The pump refills the cassette holding chambers, returns the processed blood to the patient, and the procedure is repeated for a treatment time period.

公开(公告)号：US11369786B2

公开(公告)日：2022-06-28

申请号：US15930169

申请日：2020-05-12

申请人： Berlin Heart GmbH

发明人： Ares K. Menon ,  Peter Nüsser

IPC分类号： A61M60/135 ,  A61M60/10 ,  A61M60/871 ,  A61M60/205 ,  A61M60/857

摘要： A disclosed apparatus or method can include or use a non-transluminally implantable blood pump housing, which can be sized and shaped to be implanted at an aortic valve of a human subject, the pump housing can include: a pump housing cross-sectional profile size that is larger than is passable via a blood vessel of the human subject; and a power connection, configured for being electrically connected to an intravascular lead that is sized and shaped to extend from the pump housing through a subclavian artery of the human subject.