中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

442 records (took 0.018 seconds)

    Fluid motor driven blood pump
    81.
    发明授权
    Fluid motor driven blood pump 失效
    流体马达驱动血液泵

    公开(公告)号：US5145333A

    公开(公告)日：1992-09-08

    申请号：US486953

    申请日：1990-03-01

    Applicant: William A. Smith

    Inventor： William A. Smith

    IPC: A61M1/10 ,  F04D13/02 ,  F04D13/04 ,  F04D29/10

    CPC classification number: A61M1/101 ,  A61M1/102 ,  A61M1/1036 ,  F04D13/024 ,  F04D13/04 ,  F04D13/046 ,  F04D29/108 ,  Y10S415/90

    Abstract: A rotary blood pump includes an impeller in a pump chamber driven by a fluid motor. In a first preferred embodiment, the fluid motor includes a rotary member having a series of cupped fluid reactive surfaces that receive a tangential inlet pressurized fluid flow. The cupped surfaces direct the fluid to opposite sides of the rotary member. Passages extending through the rotary member convey fluid from one side of the rotary member to the other. In a second preferred arrangement, the fluid motor is defined by a positive displacement motor. In a third embodiment, the fluid motor is separated from the pump chamber by a wall. Both biocompatible and non-biocompatible fluids can be used to drive the fluid motor.

    Abstract translation: 旋转式血液泵包括由流体马达驱动的泵室中的叶轮。 在第一优选实施例中，流体马达包括旋转构件，该旋转构件具有接收切向入口加压流体流的一系列杯形流体反应表面。 杯形表面将流体引导到旋转构件的相对侧。 通过旋转构件的通道将流体从旋转构件的一侧输送到另一侧。 在第二优选布置中，流体马达由正位移马达限定。 在第三实施例中，流体马达通过壁与泵室分离。 生物相容性和非生物相容性的两种流体均可用于驱动流体马达。

    Rotary pump
    82.
    发明授权
    Rotary pump 失效
    旋转泵

    公开(公告)号：US4895493A

    公开(公告)日：1990-01-23

    申请号：US217653

    申请日：1988-08-18

    Applicant: Harold D. Kletschka

    Inventor： Harold D. Kletschka

    IPC: A61M1/10 ,  F04D13/02 ,  F04D13/04 ,  F04D29/62

    CPC classification number: A61M1/101 ,  A61M1/102 ,  A61M1/1034 ,  A61M1/1036 ,  F04D13/024 ,  F04D13/04 ,  F04D29/628

    Abstract: A rotary pump mechanism is disclosed which comprises a coupling section that couples an impeller and drives the coupling section and, in turn, the impeller. The coupling section incorporates most of the components of the pump that wear out and are expensive. As a result, the impeller can be disposed of without disposing of other components. The coupling section can also be changed for continuous operation of a single impeller. Although the preferred application of the invention is in the area of pumping blood and other biological fluids, the disclosed invention has utility in any application where it is desirable to turn an "impeller-like" element.

    Abstract translation: 公开了一种旋转泵机构，其包括联接部分，该联接部分联接叶轮并且驱动联接部分，并且驱动叶轮。 联接部分结合了泵的大多数部件磨损并且昂贵。 结果，可以处理叶轮而不处理其它部件。 为了连续操作单个叶轮，也可以改变联接部分。 虽然本发明的优选应用是在抽血和其它生物流体的领域中，但是所公开的发明在任何需要转动“叶轮状”元件的应用中具有实用性。

    Centrifugal blood pump for cardiac assist
    83.
    发明授权
    Centrifugal blood pump for cardiac assist 失效
    离心血泵用于心脏辅助

    公开(公告)号：US4135253A

    公开(公告)日：1979-01-23

    申请号：US746008

    申请日：1976-11-30

    Applicant: Sanford Reich ,  William H. Gates

    Inventor： Sanford Reich ,  William H. Gates

    IPC: A61M1/10 ,  A61M1/12 ,  F04D13/02 ,  F04D29/10 ,  A61F1/24 ,  A61M1/03

    CPC classification number: F04D13/024 ,  A61M1/101 ,  A61M1/102 ,  A61M1/1036 ,  F04D29/108 ,  A61M1/12 ,  Y10S415/90

    Abstract: A centrifugal blood pump and method of pumping blood is disclosed to provide assistance for a dysfunctional heart. The pump is provided with a magnetic drive system which permits a synchronous magnetic coupling with a separate power unit disposed immediately adjacent the pump housing. The pump has a single moving part which includes the combination of an impeller connected to a magnetic drive rotor. The impeller is of improved blade and hub design to automatically move blood, and minimize formation of blood clots and fibrous amalgamation in the region of blood flow. Further, the impeller blades are configured to extend almost completely across the bottom surface of the impeller hub to enhance efficiency and clot-free operation. The magnetic drive system floats on a fluid surface of saline solution, which hydrodynamically supports and lubricates the magnetic drive rotor contained in a compartment separate from the impeller and facilitates a prolonged period of service-free operation.

    Abstract translation: 公开了一种离心式血液泵和血液泵送方法来为功能障碍的心脏提供帮助。 该泵设置有磁驱动系统，其允许与紧邻泵壳体设置的单独的动力单元进行同步磁耦合。 泵具有单个移动部件，其包括连接到磁驱动转子的叶轮的组合。 叶轮具有改进的叶片和轮毂设计，可自动移动血液，并最大程度减少血液流形成的血块和纤维合并。 此外，叶轮叶片构造成几乎完全延伸穿过叶轮毂的底表面以提高效率和无凝结的操作。 磁力驱动系统漂浮在盐水溶液的流体表面上，液体流体动力学地支撑和润滑包含在与叶轮分离的隔室中的磁力驱动转子，并且有助于延长使用寿命。

    EXTRACORPOREAL AMBULATORY ASSIST LUNG
    84.
    发明申请
    EXTRACORPOREAL AMBULATORY ASSIST LUNG 审中-公开

    公开(公告)号：US20180353673A9

    公开(公告)日：2018-12-13

    申请号：US15738406

    申请日：2016-06-23

    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education ,  Carnegie Mellon University ,  Mississippi State University

    Inventor： Shalv Madhani ,  Brian Joseph Frankowski ,  William J. Federspiel ,  Gregory Burgreen ,  James F. Antaki

    IPC: A61M1/36 ,  A61M1/10 ,  A61M1/16

    CPC classification number: A61M1/3667 ,  A61M1/1006 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1036 ,  A61M1/1625 ,  A61M1/1698 ,  A61M1/3666 ,  A61M2205/7536

    Abstract: An extracorporeal system for lung assist includes a housing which includes a blood flow inlet in fluid connection with a pressurizing stator compartment, a fiber bundle compartment in fluid connection with the pressurizing stator compartment via a flow channel within the housing, and a blood flow outlet in fluid connection with the fiber bundle compartment. An impeller is rotatably positioned within the pressurizing compartment for pressurizing blood entering the pressurizing stator compartment from the blood flow inlet. The system further includes a fiber bundle positioned within the fiber bundle compartment. The fiber bundle includes a plurality of hollow gas permeable fibers. The plurality of hollow gas permeable fibers is adapted to permit diffusion of gas between blood and an interior of the hollow gas permeable fibers. The plurality of hollow gas permeable fibers is positioned such that blood flows around the plurality of hollow gas permeable fibers when flowing through the fiber bundle compartment. The plurality of hollow gas permeable fibers extend generally perpendicular to the direction of bulk flow of blood through the fiber bundle compartment from the flow channel to the blood flow outlet. The system further includes a gas inlet in fluid connection with the housing and in fluid connection with inlets of the plurality of hollow gas permeable fibers and a gas outlet in fluid connection with the housing and in fluid connection with outlets of the plurality of hollow gas permeable fibers.

Patent Agency Ranking