BLOOD PUMPS
    73.
    发明申请

    公开(公告)号:US20210268261A1

    公开(公告)日:2021-09-02

    申请号:US17320742

    申请日:2021-05-14

    Abstract: Apparatus and methods are described including a catheter, and first and second impellers configured to be inserted into a subject's body via the catheter, the first and second impellers being disposed in series with each other. A motor is configured to generate rotational motion. A rotation shaft extends from the motor to the first impeller and imparts the rotational motion from the motor to the first impeller. A gear mechanism disposed between the first and second impeller is configured to effect a change in rotational motion that is imparted from the first impeller to the second impeller, such that the second impeller rotates in a different manner from the first impeller. Other applications are also described.

    TUBE FOR A VENTRICULAR ASSIST DEVICE

    公开(公告)号:US20210038794A1

    公开(公告)日:2021-02-11

    申请号:US17078472

    申请日:2020-10-23

    Abstract: Apparatus and methods are described including a ventricular assist device that includes a tube. A proximal portion of the tube traverses a subject's aortic valve, and a distal portion of the tube is disposed within the subject's left ventricle. A blood pump is disposed within the distal portion of the tube and pumps blood through the tube from the subject's left ventricle to the subject's aorta, by pumping the blood into the tube via one or more blood inlet openings that are defined by the tube and that are configured to be disposed within the subject's left ventricle, and by pumping blood out of the tube via one or more blood outlet openings that are defined by the tube and that are configured to be disposed within the subject's aorta. The one or more blood outlet openings have teardrop shapes. Other applications are also described.

    BLOOD PUMP
    76.
    发明申请
    BLOOD PUMP 审中-公开

    公开(公告)号:US20200254162A1

    公开(公告)日:2020-08-13

    申请号:US16859492

    申请日:2020-04-27

    Abstract: Apparatus and methods are described including a blood pump that includes a catheter, a first impeller disposed on the catheter, and a second impeller disposed on the catheter, proximally to the first impeller. A control unit drives the first and second impellers to pump blood of a subject, by driving the first and second impellers to rotate. The blood pumps is configured such that (a) the first and second impellers are shaped differently from each other when the first and second impellers are in non-radially-constrained configurations, (b) the first and second impellers are sized differently from each other when the first and second impellers are in non-radially-constrained configurations, and/or (c) the first and second impellers are driven by the control unit to rotate under respective rotation conditions that are different from each other. Other applications are also described.

    FRAME FOR BLOOD PUMP
    77.
    发明申请

    公开(公告)号:US20200237984A1

    公开(公告)日:2020-07-30

    申请号:US16810121

    申请日:2020-03-05

    Abstract: Apparatus and methods are described including a blood pump that includes an impeller configured to pump blood through a subject's body, and a frame disposed around the impeller. The frame defines struts having a structure that is such that, as the frame transitions from a proximal end of the frame toward a center of the frame, the struts pass through junctions, at which the two struts branch from a single strut, in a Y-shape. The structure of the struts of the frame is configured such that, in response to a distal end of a delivery catheter and the frame being moved into overlapping positions with respect to each other, the frame assumes a radially-constrained configuration by becoming axially elongated, and the frame causes the impeller to assume a radially-constrained configuration by becoming axially elongated. Other applications are also described.

    MANUFACTURING AN IMPELLER
    78.
    发明申请

    公开(公告)号:US20200237983A1

    公开(公告)日:2020-07-30

    申请号:US16810116

    申请日:2020-03-05

    Abstract: Apparatus and methods are described including manufacturing an impeller by forming a structure having first and second bushings at proximal and distal ends that are connected to one another by at least one elongate element. The elongate element is made to radially expand and form a helical elongate element. An elastomeric material is coupled to the helical elongate element, such that the helical elongate element with the elastomeric material coupled thereto defines a blade of the impeller. The coupling is performed such that a layer of the material disposed around a radially outer edge of the helical elongate element forms the effective edge of the impeller blade. A step is performed to enhance bonding of the elastomeric material to the helical elongate element in a manner that does not cause a protrusion from the effective edge of the impeller blade. Other applications are also described.

    METHODS OF MANUFACTURING AN IMPELLER
    79.
    发明申请

    公开(公告)号:US20200078506A1

    公开(公告)日:2020-03-12

    申请号:US16682269

    申请日:2019-11-13

    Abstract: Apparatus and methods are described including manufacturing an impeller by coupling a material to a helical elongate element, such that the helical elongate element with the material coupled thereto defines a blade of the impeller. A portion of a structure that includes the helical elongate element is dipped into the material while the material is in a liquid state. The material is dried, while the material is being supported by the at least one helical elongate element. During the drying of material, the structure is rotated about its longitudinal axis, such as to facilitate the formation of a film of the material having a substantially uniform thickness within the impeller blade. Other applications are also described.

    Blood pump
    80.
    发明授权

    公开(公告)号:US10583231B2

    公开(公告)日:2020-03-10

    申请号:US15312034

    申请日:2015-05-19

    Abstract: Apparatus and methods are described including a catheter (20), a first pump (24U) disposed on the catheter, and a second pump (24D) disposed on the catheter, proximally to the first pump. A control unit (52) is configured to control activation of the first and second pumps. The first and second pumps are configured, when activated, to pump fluid in opposite directions from one another. Other applications are also described.

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