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    STEERABLE ULTRASOUND CATHETER
    1.
    发明申请
    STEERABLE ULTRASOUND CATHETER 审中-公开

    公开(公告)号：US20190216487A1

    公开(公告)日：2019-07-18

    申请号：US16368095

    申请日：2019-03-28

    Applicant: Flowcardia, Inc.

    Inventor： Henry Nita ,  Jeff Sarge

    IPC: A61B17/3207 ,  A61B17/22 ,  A61B17/32

    CPC classification number: A61B17/3207 ,  A61B17/22004 ,  A61B17/2202 ,  A61B17/320068 ,  A61B2017/00243 ,  A61B2017/22014 ,  A61B2017/308 ,  A61B2017/32007 ,  A61B2017/320071 ,  A61M25/0054

    Abstract: A catheter includes a catheter body (CB) having a CB proximal-portion, a CB distal-portion, and a CB lumen. The CB distal-portion has a CB distal end. The CB proximal-portion has a distally narrowing taper, wherein the CB distal-portion extends distally from the distally narrowing taper of the CB proximal-portion. The CB lumen extends through the CB proximal-portion and the CB distal-portion. An ultrasound transmission member (UTM) has a UTM distal end. The UTM extends longitudinally through the CB lumen. The UTM has a longitudinal taper that tapers toward the UTM distal end, and wherein the longitudinal taper tapers distally from the distally narrowing taper of the CB proximal-portion. A distal head (DH) is coupled with the UTM distal end and is disposed adjacent the CB distal end.

    Ultrasound catheter system
    2.
    发明授权
    Ultrasound catheter system 有权

    公开(公告)号：US10238895B2

    公开(公告)日：2019-03-26

    申请号：US14415126

    申请日：2013-08-01

    Applicant: FLOWCARDIA, INC.

    Inventor： Jeff Sarge ,  Michael A. Summers

    IPC: A61N7/02 ,  A61B17/22 ,  A61B17/32 ,  A61B17/00 ,  A61N7/00

    Abstract: An ultrasonic system operable at high drive frequencies and/or in pulsed operation is disclosed. The system may be used in a procedure to treat an occluded blood vessel. The system can be used to transmit ultrasonic energy from an ultrasonic transducer to a distal end of an ultrasonic transmission device. The ultrasonic device may operate at a resonant frequency. The resonant frequency can be determined prior to using the device and/or during use. The ultrasonic device may operate in a range of frequencies at or near resonance. Operational parameters including, for example, reflected vibrations, temperature, and/or user input can be used by the system to adjust the driving waveform.

    ULTRASOUND CATHETER DEVICES AND METHODS
    4.
    发明申请
    ULTRASOUND CATHETER DEVICES AND METHODS 审中-公开
    超声波导管器件和方法

    公开(公告)号：US20140081288A1

    公开(公告)日：2014-03-20

    申请号：US14090926

    申请日：2013-11-26

    Applicant: FlowCardia, Inc.

    Inventor： Henry Nita ,  Jeff Sarge ,  Richard Spano

    IPC: A61B17/22

    CPC classification number: A61B17/22004 ,  A61B17/22012 ,  A61B17/2251 ,  A61B2017/00477 ,  A61B2017/22014

    Abstract: Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter device includes an elongate flexible catheter body with one or more lumens, an ultrasound transmission member extending longitudinally through the catheter body lumen and a distal head coupled with the transmission member and positioned adjacent the distal end of the catheter body for disrupting occlusions. A proximal housing of the catheter device may include one or more features for dissipating heat from the ultrasound transmission wire, such as a fluid inlet aperture for passage of fluid, use of heat conductive materials in the proximal housing, surface features to increase the housing's surface area, heat conductive members disposed adjacent the transmission member and the like. Various irrigation fluids may be used, such as cooled, oxygen supersaturated or lubricious fluids.

    Abstract translation: 超声导管装置和方法提供增强的血管阻塞的破坏。 通常，超声导管装置包括具有一个或多个管腔的细长柔性导管主体，纵向延伸穿过导管体腔的超声传递构件和与传播构件联接并远离导管主体的远端定位的远端头，用于破坏 闭塞。 导管装置的近侧壳体可以包括用于从超声波传输线散发热量的一个或多个特征，例如用于流体通过的流体入口孔，在近侧壳体中使用导热材料，表面特征以增加壳体的表面 区域，布置在传输构件附近的导热构件等。 可以使用各种冲洗流体，例如冷却的，氧过饱和的或润滑的流体。

    Ultrasound catheter apparatus
    5.
    发明授权
    Ultrasound catheter apparatus 有权

    公开(公告)号：US11103261B2

    公开(公告)日：2021-08-31

    申请号：US16162709

    申请日：2018-10-17

    Applicant: Flowcardia, Inc.

    Inventor： Henry Nita ,  Jeff Sarge ,  Simon Nguyen

    IPC: A61B17/22 ,  A61B17/00

    Abstract: An ultrasound catheter includes a catheter body, an ultrasound transmission member, a sonic connector, a constraining member, and a vibrational absorber. The vibrational absorber has an opening through which the ultrasonic transmission member extends. The vibrational absorber is located in a recessed portion of the constraining member. The vibrational absorber is both longitudinally interposed between the constraining member and the distal portion of the sonic connector and laterally interposed between the recessed portion of the constraining member and the ultrasound transmission member. The recessed portion of the constraining member overlaps a portion of an exterior of the distal portion of the sonic connector.

    VIBRATIONAL CATHETER DEVICES AND METHODS FOR MAKING SAME
    6.
    发明申请
    VIBRATIONAL CATHETER DEVICES AND METHODS FOR MAKING SAME 审中-公开

    公开(公告)号：US20190247065A1

    公开(公告)日：2019-08-15

    申请号：US16391810

    申请日：2019-04-23

    Applicant: FLOWCARDIA, INC.

    Inventor： Henry Nita ,  Jeff Sarge

    IPC: A61B17/22

    CPC classification number: A61B17/22012 ,  A61B17/22004 ,  A61B2017/00477 ,  A61B2017/00526 ,  Y10T29/49908 ,  Y10T29/49925 ,  Y10T29/49927 ,  Y10T29/49929

    Abstract: A method for making a vibrational catheter device includes providing a transition connector comprising a proximal portion, a distal portion, and a tapered portion that defines a tapered outer surface of the transition connector, the proximal portion being wider than the distal portion, and the transition connector having a bore disposed within the tapered portion; inserting a proximal end of an ultrasound transmission member into the bore; and deforming at least part of the transition connector at the tapered outer surface so as to apply greater force to the wider proximal portion than to the distal portion to secure the proximal end of the ultrasound transmission member within the bore.

    ULTRASOUND CATHETER APPARATUS
    7.
    发明申请
    ULTRASOUND CATHETER APPARATUS 审中-公开

    公开(公告)号：US20190059920A1

    公开(公告)日：2019-02-28

    申请号：US16162709

    申请日：2018-10-17

    Applicant: Flowcardia, Inc.

    Inventor： Henry Nita ,  Jeff Sarge ,  Simon Nguyen

    IPC: A61B17/22 ,  A61B17/00

    Abstract: An ultrasound catheter includes a catheter body, an ultrasound transmission member, a sonic connector, a constraining member, and a vibrational absorber. The vibrational absorber has an opening through which the ultrasonic transmission member extends. The vibrational absorber is located in a recessed portion of the constraining member. The vibrational absorber is both longitudinally interposed between the constraining member and the distal portion of the sonic connector and laterally interposed between the recessed portion of the constraining member and the ultrasound transmission member. The recessed portion of the constraining member overlaps a portion of an exterior of the distal portion of the sonic connector.

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