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48 条记录 (耗时 0.027 秒)

    Ultrasound catheter devices and methods
    41.
    发明授权
    Ultrasound catheter devices and methods 有权

    公开(公告)号：US08617096B2

    公开(公告)日：2013-12-31

    申请号：US13019263

    申请日：2011-02-01

    申请人： Henry Nita ,  Jeff Sarge ,  Richard Spano

    发明人： Henry Nita ,  Jeff Sarge ,  Richard Spano

    IPC分类号： A61B17/20 ,  A61B17/22 ,  A61D1/02

    CPC分类号： A61B17/22004 ,  A61B17/22012 ,  A61B17/2251 ,  A61B2017/00477 ,  A61B2017/22014

    摘要： 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.

    Ultrasound catheter for disrupting blood vessel obstructions
    42.
    发明授权
    Ultrasound catheter for disrupting blood vessel obstructions 有权
    超声导管用于破坏血管阻塞

    公开(公告)号：US08308677B2

    公开(公告)日：2012-11-13

    申请号：US13153359

    申请日：2011-06-03

    申请人： Henry Nita ,  Jeff Sarge ,  Martinos Tran ,  Simon Nguyen

    发明人： Henry Nita ,  Jeff Sarge ,  Martinos Tran ,  Simon Nguyen

    IPC分类号： A61B17/20

    CPC分类号： A61B17/22 ,  A61B17/22012 ,  A61B2017/00477 ,  A61B2017/22015 ,  A61B2017/22018 ,  A61B2017/22038 ,  A61B2017/320072 ,  A61B2017/320084 ,  A61M37/0092

    摘要： Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member. Such a freely floating distal head enhances the efficiency of an ultrasound catheter, enabling the catheter to ablate calcific occlusions and increasing the useful life of the ultrasound transmission member and catheter.

    摘要翻译： 超声导管装置和方法提供增强的血管阻塞的破坏。 通常，超声导管包括具有一个或多个管腔的细长柔性导管主体。 超声波传输构件或导线纵向延伸通过导管体腔，并且在许多实施例中，导丝管也延伸穿过相同的内腔。 远端头部固定到超声波传播构件或线的远端或以其它方式机械联接，并且邻近导管主体的远端定位。 虽然导管主体的远端与远端头部重叠，但是远侧头部不直接固定到导管主体的远端。 因此，当通过超声波传播构件施加超声波能量时，远端可相对于导管体的远端自由移动。 这种自由浮动的远端头部提高了超声导管的效率，使得导管能够消融钙化闭塞并增加超声波传输部件和导管的使用寿命。

    ULTRASOUND CATHETER APPARATUS
    43.
    发明申请
    ULTRASOUND CATHETER APPARATUS 有权
    超声波导管装置

    公开(公告)号：US20100049209A1

    公开(公告)日：2010-02-25

    申请号：US12572118

    申请日：2009-10-01

    申请人： Henry Nita ,  Jeff Sarge ,  Simon Nguyen

    发明人： Henry Nita ,  Jeff Sarge ,  Simon Nguyen

    IPC分类号： A61B17/22

    CPC分类号： A61B17/22012 ,  A61B2017/00477 ,  A61B2017/22015

    摘要： Ultrasound catheter devices and methods of the present invention generally provide for ablation and/or disruption of vascular occlusions. An ultrasound transmission member, such as a wire, transmits vibrational energy from an ultrasound transducer to a distal head of the catheter to disrupt vascular occlusions. An absorber member is disposed on or around the ultrasound transmission wire at a location adjacent the sonic connector of the catheter. The absorber member absorbs heat, vibrations, and/or the like from the ultrasound transmission wire at or near the area where the transmission wire is coupled with the sonic connector. The absorptive function typically slows the process of wear and tear on the transmission wire, thus extending the useful life of the ultrasound catheter.

    摘要翻译： 本发明的超声导管装置和方法通常提供血管闭塞的消融和/或破坏。 诸如线的超声波传递构件将振动能量从超声换能器传递到导管的远端头部以破坏血管闭塞。 吸收器构件设置在超声波传输线上或周围的与导管的声音连接器相邻的位置处。 吸收器构件从传声线与声音连接器耦合的区域处或附近从超声波传输线吸收热量，振动和/或类似物。 吸收功能通常减慢传输线上的磨损和撕裂过程，从而延长超声波导管的使用寿命。

    Ultrasound catheter devices and methods
    46.
    发明授权
    Ultrasound catheter devices and methods 有权
    超声导管装置及方法

    公开(公告)号：US07220233B2

    公开(公告)日：2007-05-22

    申请号：US10410617

    申请日：2003-04-08

    申请人： Henry Nita ,  Jeff Sarge ,  Simeon Nguyen ,  Richard Spano

    发明人： Henry Nita ,  Jeff Sarge ,  Simeon Nguyen ,  Richard Spano

    IPC分类号： A61H1/00

    CPC分类号： A61B17/22012 ,  A61B2017/00292 ,  A61B2017/0046 ,  A61B2017/00477 ,  A61B2017/22014 ,  A61B2017/22015 ,  A61B2017/22039 ,  A61B2017/22065 ,  A61B2017/320084 ,  A61B2017/320088 ,  Y10S29/019

    摘要： Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, ultrasound catheters include 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. Improved features of ultrasound catheters include prevention of independent rotation of the ultrasound transmission member, a safety anchor for the distal head, a one-piece transmission member/distal head and the like.

    摘要翻译： 超声导管装置和方法提供增强的血管阻塞的破坏。 通常，超声导管包括具有一个或多个腔的细长柔性导管体，纵向延伸穿过导管体腔的超声波传播构件和与传播构件联接并远离导管主体的远端定位以阻止闭塞的远端头。 超声波导管的改进特征包括防止超声波传输构件的独立旋转，用于远端头部的安全锚，单件传动构件/远端头等。

    ULTRASOUND CATHETER FOR DISRUPTING BLOOD VESSEL OBSTRUCTIONS
    47.
    发明申请
    ULTRASOUND CATHETER FOR DISRUPTING BLOOD VESSEL OBSTRUCTIONS 有权
    用于破坏血管阻塞的超声波导管

    公开(公告)号：US20070021690A1

    公开(公告)日：2007-01-25

    申请号：US11466738

    申请日：2006-08-23

    申请人： Henry Nita ,  Jeff Sarge ,  Martinos Tran ,  Simon Nguyen

    发明人： Henry Nita ,  Jeff Sarge ,  Martinos Tran ,  Simon Nguyen

    IPC分类号： A61H1/00

    CPC分类号： A61B17/22 ,  A61B17/22012 ,  A61B2017/00477 ,  A61B2017/22015 ,  A61B2017/22018 ,  A61B2017/22038 ,  A61B2017/320072 ,  A61B2017/320084 ,  A61M37/0092

    摘要： Ultrasound catheter devices and methods provide enhanced disruption of blood vessel obstructions. Generally, an ultrasound catheter includes an elongate flexible catheter body with one or more lumens. An ultrasound transmission member or wire extends longitudinally through the catheter body lumen and, in many embodiments, a guide wire tube also extends through the same lumen. A distal head is fixed to or otherwise mechanically coupled with the distal end of the ultrasound transmission member or wire and is positioned adjacent the distal end of the catheter body. Although the distal end of the catheter body overlaps the distal head, the distal head is not directly affixed to the distal end of the catheter body. Thus, the distal tip may move freely, relative to the distal end of the catheter body when ultrasonic energy is applied through the ultrasound transmission member. Such a freely floating distal head enhances the efficiency of an ultrasound catheter, enabling the catheter to ablate calcific occlusions and increasing the useful life of the ultrasound transmission member and catheter.

    摘要翻译： 超声导管装置和方法提供增强的血管阻塞的破坏。 通常，超声导管包括具有一个或多个管腔的细长柔性导管主体。 超声波传输构件或导线纵向延伸通过导管体腔，并且在许多实施例中，导丝管也延伸穿过相同的内腔。 远端头部固定到超声波传播构件或线的远端或以其它方式机械联接，并且邻近导管主体的远端定位。 虽然导管主体的远端与远端头部重叠，但是远侧头部不直接固定到导管主体的远端。 因此，当通过超声波传播构件施加超声波能量时，远端可相对于导管体的远端自由移动。 这种自由浮动的远端头部提高了超声导管的效率，使得导管能够消融钙化闭塞并增加超声波传输部件和导管的使用寿命。

    Vibrational catheter devices and methods for making same
    48.
    发明申请
    Vibrational catheter devices and methods for making same 有权
    振动导管装置及其制作方法

    公开(公告)号：US20060161098A1

    公开(公告)日：2006-07-20

    申请号：US11040524

    申请日：2005-01-20

    申请人： Henry Nita ,  Jeff Sarge

    发明人： Henry Nita ,  Jeff Sarge

    IPC分类号： A61B17/20

    CPC分类号： A61B17/22012 ,  A61B2017/00477 ,  A61B2017/00526 ,  Y10T29/49908

    摘要： A vibrational catheter for disrupting obstructions in lumens such as blood vessels includes an elongate flexible catheter body having a proximal end, a distal end and at least one lumen extending longitudinally therethrough, a vibrational transmission member extending longitudinally through the lumen of the catheter body and having a proximal end and a distal end, and a transition connector attached to the proximal end of the vibrational transmission member for coupling the transmission member with a vibrational energy source. The transition connector includes a bore into which the proximal end of the vibrational transmission member extends. The proximal end of the vibrational transmission member is attached within the bore of the transition connector with variable attachment forces such that the transition connector exerts a lowest amount of attachment force on an attached distal-most portion of the vibrational transmission member housed within the bore.

    摘要翻译： 用于破坏血管内腔障碍物的振动导管包括细长的柔性导管主体，其具有近端，远端和纵向穿过其中延伸的至少一个内腔;振动传递构件，纵向延伸穿过导管主体的内腔，并具有 近端和远端，以及连接到振动传递构件的近端的过渡连接器，用于将传动构件与振动能源联接。 过渡连接器包括孔，振动传递构件的近端延伸穿过该孔。 振动传递构件的近端以可变的附接力附接在过渡连接器的孔内，使得过渡连接器在容纳在孔内的振动传动构件的附接的最远部分上施加最低的附着力。