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    STATIC MIXER
    1.
    发明申请
    STATIC MIXER 有权

    公开(公告)号：US20220410094A1

    公开(公告)日：2022-12-29

    申请号：US17778072

    申请日：2020-11-20

    申请人： DOW SILICONES CORPORATION ,  THE REGENTS OF THE UNIVERSITY OF MICHIGAN

    发明人： Bizhong ZHU ,  Stanley YEE ,  Matthew HILDNER ,  Jeffrey PLOTT ,  Albert SHIH

    IPC分类号： B01F25/4314 ,  B01F25/432 ,  B01F25/431 ,  B01F35/92 ,  B33Y30/00 ,  B33Y40/00 ,  B29C64/314 ,  B29B7/32 ,  B29B7/72

    摘要： A static mixer is disclosed. The static mixer comprises a housing (22) defining an internal mixing cavity (36) that longitudinally extends along a central axis between an inlet (38) and an outlet (40) and is adapted for axial flow of a fluid therethrough. The static mixer also comprises a mixing element (42) disposed within the mixing cavity (36). The mixing element (42) is configured to be free from an impingement surface oriented substantially perpendicular to a main direction of fluid flow through the internal mixing cavity (36). The mixing element (42) comprises an elongated mixing blade that is oriented longitudinally within the mixing cavity (36) and comprises a nose axially oriented toward the inlet (38). The static mixer may comprise a heat-exchanging jacket integrally formed with the housing (22). An additive manufacturing system comprising the static mixer, and methods of making and using the same, are also disclosed.

    SYSTEM FOR EFFECTING AND CONTROLLING OSCILLATORY PRESSURE WITHIN BALLOON CATHETERS FOR FATIGUE FRACTURE OF CALCULI
    2.
    发明申请
    SYSTEM FOR EFFECTING AND CONTROLLING OSCILLATORY PRESSURE WITHIN BALLOON CATHETERS FOR FATIGUE FRACTURE OF CALCULI 有权

    公开(公告)号：US20220409869A1

    公开(公告)日：2022-12-29

    申请号：US17897604

    申请日：2022-08-29

    申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

    发明人： Robert CHISENA ,  Hitinder S. GURM ,  Matthew HILDNER ,  Yihao ZHENG ,  Albert SHIH

    IPC分类号： A61M25/10 ,  A61B17/22

    摘要： A dynamic balloon angioplasty system for applying a dynamic pressure to fracture hardened materials embedded within an elastic conduit. The system having a pressure source system outputting at least a first predetermined pressure from a pressure source outlet, and an angioplasty unit fluidly coupled to the pressure source outlet receiving at least the first predetermined pressure. The angioplasty unit having an angioplasty inflation device, an angioplasty balloon connector, and an oscillating mechanism selectively actuated to output a plurality of pressure pulses to the angioplasty balloon via a fluid communication path. A control system is configured to determine an optimal hydraulic pressure oscillation frequency and amplitude for a given procedure and output a control signal to the oscillating mechanism, and monitor a pressure signal to detect fracture of the hardened material within the elastic conduit or system failure or leakage.

    SYSTEM FOR EFFECTING AND CONTROLLING OSCILLATORY PRESSURE WITHIN BALLOON CATHETERS FOR FATIGUE FRACTURE OF CALCULI
    3.
    发明申请
    SYSTEM FOR EFFECTING AND CONTROLLING OSCILLATORY PRESSURE WITHIN BALLOON CATHETERS FOR FATIGUE FRACTURE OF CALCULI 审中-公开

    公开(公告)号：US20200046949A1

    公开(公告)日：2020-02-13

    申请号：US16654073

    申请日：2019-10-16

    申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

    发明人： Robert CHISENA ,  Hitinder S. GURM ,  Matthew HILDNER ,  Yihao ZHENG ,  Albert SHIH

    IPC分类号： A61M25/10 ,  A61B17/22

    摘要： A dynamic balloon angioplasty system for applying a dynamic pressure to fracture hardened materials embedded within an elastic conduit. The system having a pressure source system outputting at least a first predetermined pressure from a pressure source outlet, and an angioplasty unit fluidly coupled to the pressure source outlet receiving at least the first predetermined pressure. The angioplasty unit having an angioplasty inflation device, an angioplasty balloon connector, and an oscillating mechanism selectively actuated to output a plurality of pressure pulses to the angioplasty balloon via a fluid communication path. A control system is configured to determine an optimal hydraulic pressure oscillation frequency and amplitude for a given procedure and output a control signal to the oscillating mechanism, and monitor a pressure signal to detect fracture of the hardened material within the elastic conduit or system failure or leakage.

    TWO-PHASE TECHNIQUE TO RESTORE ARTERY PATENCY AND A CATHETER TEMPERATURE CONTROL SYSTEM IN ATHERECTOMY
    4.
    发明申请
    TWO-PHASE TECHNIQUE TO RESTORE ARTERY PATENCY AND A CATHETER TEMPERATURE CONTROL SYSTEM IN ATHERECTOMY 审中-公开

    公开(公告)号：US20190262035A1

    公开(公告)日：2019-08-29

    申请号：US16342573

    申请日：2017-10-17

    申请人： THE REGENTS OF THE UNIVERSITY OF MICHIGAN

    发明人： Hitinder S. GURM ,  Yao LIU ,  Yang LIU ,  Yihao ZHENG ,  Albert SHIH

    IPC分类号： A61B17/3207

    摘要： A method of two-phase atherectomy for removal of plaque within an artery forming a stenosis including a first phase of rotational drilling by exerting a rotational force on a cutter to form a channel within the plaque having a diameter substantially equal to a diameter of the cutter—the cutter being rotated at a first rotational speed sufficient to maintain rotation of the cutter about a stationary rotational axis—and a second phase of orbital impact by exerting a rotational force on the cutter to result in radial orbital motion of the cutter within the channel resulting in periodic impact of the cutter upon the plaque to form micro-fractures within the plaque and enlarge the diameter of the channel to a diameter substantially greater than the diameter of the cutter—the cutter being rotated at a second rotational speed to result in the radial orbital motion of the cutter.