AXIAL FLOW IMPLANTABLE MECHANICAL CIRCULATORY SUPPORT DEVICES WITH OUTLET VOLUTE

    公开(公告)号:US20190328947A1

    公开(公告)日:2019-10-31

    申请号:US16505906

    申请日:2019-07-09

    Abstract: A mechanical circulatory support device includes an inner housing having an inlet end, an outlet end, and a flow path there between. The flow path defines a longitudinal axis. A volute downstream of the outlet end has an outlet port. A rotor mounted within the inner housing upstream of the volute and configured to rotate about the longitudinal axis is included. The volute includes an inner surface having a minimum radius immediately adjacent the rotor and a maximum radius at the outlet port that is larger than the minimum radius.

    AXIAL FLOW ROTOR WITH DOWNSTREAM BEARING WASH FLOW

    公开(公告)号:US20170296720A1

    公开(公告)日:2017-10-19

    申请号:US15639131

    申请日:2017-06-30

    Abstract: An implantable blood pump includes an impeller rotatable about a rotational axis, having a body with a bottom surface at a downstream end and a central opening centered about the axis extending at least partially through the body from the bottom surface. A projecting element, e.g., a shaft, extends from below the bottom surface into or through the opening to support the impeller. The body can be configured to drive a primary downstream blood flow along an exterior of the body to beyond a peripheral edge of the bottom surface, and to provide a secondary downstream blood flow through the opening and along the bottom surface to beyond the peripheral edge, the secondary flow improving washing of a bearing surface.

    IMPLANTABLE PUMP WITH TAPERED DIFFUSER REGION

    公开(公告)号:US20180303992A1

    公开(公告)日:2018-10-25

    申请号:US16025177

    申请日:2018-07-02

    Abstract: A blood pump, such as an axial flow pump, having a pump housing, the pump housing defining a flow path and having a tapered portion adjacent to an outlet, tapering toward the outlet, an outflow cannula connected to the outlet of the pump housing, and an impeller and diffuser, disposed in the pump housing, the diffuser having a tapered body corresponding to the tapered portion of the pump housing, the diffuser body having at least one vane extending therefrom, the vein tapering in the same direction as the diffuser body. The present invention also includes a method of manufacturing the blood pump and a method of implanting the blood pump.

    IMPELLER FOR AXIAL FLOW PUMP
    5.
    发明申请

    公开(公告)号:US20170173241A1

    公开(公告)日:2017-06-22

    申请号:US15392847

    申请日:2016-12-28

    Abstract: A rotor for an axial-flow blood pump has blades projecting outwardly from a hub and channels between the blades. The blades incorporate hydrodynamic bearing surfaces capable of suspending the rotor during operation. The rotor has a configuration which provides superior pumping action and reduced shear of blood passing through the pump. The forwardly facing pressure surfaces of the blades may include outflow corner surface at their downstream ends. The outflow corner surfaces desirably slope rearwardly and intersect the rearwardly-facing suction surfaces of the blades at outflow ends of the blades.

    THROMBUS CLEARING MANIFOLD FOR VENTRICULAR ASSIST DEVICES

    公开(公告)号:US20200171225A1

    公开(公告)日:2020-06-04

    申请号:US16653231

    申请日:2019-10-15

    Abstract: A thrombus clearing implantable blood pump including a housing having an inlet cannula and an outlet opposite the inlet cannula, the inlet cannula and the outlet defining a flow path therebetween, and the inlet cannula having a sidewall defining a circumference and a plurality of apertures extending through the sidewall. A rotor and a stator are disposed within the housing for rotating the rotor when a current is applied to the stator.

    IMPLANTABLE MECHANICAL CIRCULATORY SUPPORT DEVICES

    公开(公告)号:US20190351115A1

    公开(公告)日:2019-11-21

    申请号:US16528730

    申请日:2019-08-01

    Abstract: A mechanical circulatory support device. The mechanical circulatory support device includes an inner casing defining a fluid flow path, the fluid flow path defines a longitudinal axis. A rotor is mounted within the fluid flow path and configured to rotate about the longitudinal axis. A housing is included, the inner casing and the rotor being substantially disposed within the housing. The housing having a cross-sectional shape in a plane transverse to the longitudinal axis which decreases in thickness extending from a medial position to opposite lateral positions.

    PULSATILE BLOOD PUMP WITH ACTIVE ELEMENT AND THROMBUS RINSE

    公开(公告)号:US20210113751A1

    公开(公告)日:2021-04-22

    申请号:US16655628

    申请日:2019-10-17

    Abstract: An implantable blood pump includes a housing defining an inlet and an outlet and a flow path therethrough. A rotor is disposed within the housing. A stator is disposed within the housing, the stator being configured to rotate the rotor when a current is applied to the stator. A volute is disposed distal to the rotor proximate the outlet, the volute including a tongue composed of a piezoelectric material.

    AXIAL FLOW ROTOR WITH DOWNSTREAM BEARING WASH FLOW

    公开(公告)号:US20190001034A1

    公开(公告)日:2019-01-03

    申请号:US16124277

    申请日:2018-09-07

    Abstract: An implantable blood pump includes an impeller rotatable about a rotational axis, having a body with a bottom surface at a downstream end and a central opening centered about the axis extending at least partially through the body from the bottom surface. A projecting element, e.g., a shaft, extends from below the bottom surface into or through the opening to support the impeller. The body can be configured to drive a primary downstream blood flow along an exterior of the body to beyond a peripheral edge of the bottom surface, and to provide a secondary downstream blood flow through the opening and along the bottom surface to beyond the peripheral edge, the secondary flow improving washing of a bearing surface.

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