Method and apparatus for varicose vein treatment using acoustic hemostasis
    2.
    发明申请
    Method and apparatus for varicose vein treatment using acoustic hemostasis 审中-公开
    使用声止血静脉曲张静脉治疗的方法和装置

    公开(公告)号:US20070088346A1

    公开(公告)日:2007-04-19

    申请号:US11581596

    申请日:2006-10-16

    IPC分类号: A61B18/04

    CPC分类号: A61N7/02 A61B17/2251

    摘要: A method of treating a perforator vein comprises applying ultrasound to the perforator vein and occluding the perforator vein with the ultrasound. An apparatus for treating blood vessels comprises an ultrasound emitter, wherein the ultrasound emitter is configured to emit ultrasound at multiple therapeutic ultrasound frequencies during a treatment cycle. The apparatus further comprises an acoustic coupler in sonic communication with the emitter, wherein the acoustic coupler has an acoustic coupling surface configured to contact a patient and facilitate delivery of ultrasound to the patient and wherein the acoustic coupler provides a conduction path for ultrasound from the emitter to the acoustic coupling surface. The apparatus further comprises an acoustic coupler containing a displaceable acoustic coupling material. The apparatus further comprises an acoustic coupler configured to vary the length of the conduction path in accordance with variation in the thickness of the acoustic coupling material disposed between the emitter and the acoustic coupling surface.

    摘要翻译: 治疗穿孔静脉的方法包括将超声波应用于穿孔静脉并用超声波封堵穿孔静脉。 一种用于治疗血管的装置包括超声发射器,其中所述超声发射器被配置为在治疗周期期间以多个治疗超声频率发射超声波。 该装置还包括与发射器声音通信的声耦合器,其中声耦合器具有被配置为接触患者并且便于将超声波传送给患者的声学耦合表面,并且其中声学耦合器提供来自发射器的超声波的传导路径 到声耦合表面。 该装置还包括一个包含可位移声耦合材料的声耦合器。 该装置还包括声耦合器,其被配置为根据设置在发射器和声耦合表面之间的声耦合材料的厚度的变化来改变导电路径的长度。

    Methods and devices for performing differential perfusion
    7.
    发明授权
    Methods and devices for performing differential perfusion 失效
    用于进行差异灌注的方法和装置

    公开(公告)号:US06702773B1

    公开(公告)日:2004-03-09

    申请号:US09495632

    申请日:2000-02-01

    IPC分类号: A61M3700

    摘要: A system for establishing differential perfusion without the use of an occlusion balloon or other flow separator devices. The flows through two lumens are controlled such that the blood flow issuing from one lumen terminating in the aortic arch supplies the entire demand of the cerebral subcirculation while the blood flow issuing from a second lumen terminating in the descending aorta supplies the entire demand of the corporeal subcirculation. When the two flows are properly balanced, an inversion layer forms therebetween and no intermixing of the two flows takes place.

    摘要翻译: 用于在不使用闭塞气囊或其它流动分离器装置的情况下建立差异灌注的系统。 控制通过两个流明的流动,使得从终止于主动脉弓的一个腔中发出的血流提供了大脑亚循环的整个需求,而从下降的主动脉终止的第二个腔中发出的血流提供了整个体表的需求 亚循环。 当两个流动适当地平衡时,在其间形成反转层,并且不会发生两个流动的混合。

    Expandable venous cannula and method of use
    8.
    发明授权
    Expandable venous cannula and method of use 失效
    可扩展静脉插管及其使用方法

    公开(公告)号:US06673042B1

    公开(公告)日:2004-01-06

    申请号:US09447457

    申请日:1999-11-22

    IPC分类号: A61M2900

    CPC分类号: A61M29/02

    摘要: The cannula of the present invention is useful for standard gravity drainage or vacuum assisted/suction drainage. The cannula of the present invention has a flexible shaft composed of a tubular body and an expandable scaffolding. The expandable scaffolding has a contracted position, facilitating insertion into a vessel and an expanded condition configured to allow optimal drainage in a vessel. The cannula is inserted into a vessel and navigated into an operative position within the patient's venous system. Once the cannula is in the proper position, the scaffolding is expanded either through passive, active, mechanic, hydraulic, pneumatic, thermal or electrical actuation. The cannula of the present invention is capable of expanding a collapsed vein to its normal diameter and/or capable of supporting the vein when suction is applied to the cannula to help increase fluid flow through the cannula.

    摘要翻译: 本发明的套管可用于标准重力排水或真空辅助/抽吸排水。 本发明的插管具有由管状体和可扩展脚手架组成的柔性轴。 可膨胀的脚手架具有收缩位置,便于插入容器中,并且膨胀状态被配置为允许容器中的最佳排水。 将套管插入血管并导航到患者静脉系统内的操作位置。 一旦插管处于适当的位置,脚手架就可以通过被动,主动,机械,液压,气动,热或电致动来扩展。 本发明的插管能够将收缩的静脉膨胀至其正常直径和/或能够在将抽吸施加到套管上时支撑静脉,以帮助增加通过插管的流体流动。

    Guide catheter with sensing element
    9.
    发明授权
    Guide catheter with sensing element 失效
    导管与传感元件

    公开(公告)号:US5701905A

    公开(公告)日:1997-12-30

    申请号:US557753

    申请日:1995-11-13

    申请人: Brady Esch

    发明人: Brady Esch

    摘要: A guide catheter includes a tubular body having a proximal end and a distal end. A pressure or other sensor is disposed at or near the distal end of the body, preferably having an active surface thereof disposed away from the direction of blood flow when the catheter is present in a particular blood vessel, such as the aorta adjacent to a coronary ostium.

    摘要翻译: 引导导管包括具有近端和远端的管状体。 压力或其他传感器设置在身体的远端处或附近,当导管存在于特定血管中时,优选地具有远离血流方向的活动表面,例如与冠状动脉相邻的主动脉 口腔