Method and apparatus for accurate positioning of a dual balloon catheter
    1.
    发明授权
    Method and apparatus for accurate positioning of a dual balloon catheter 失效
    双球囊导管准确定位的方法和装置

    公开(公告)号:US07066905B2

    公开(公告)日:2006-06-27

    申请号:US10293002

    申请日:2002-11-13

    IPC分类号: A61M31/00 A61M29/00

    摘要: Embodiments of the present invention are directed to a method and apparatus for accurate positioning of a dual balloon catheter. In one embodiment of the present invention, a first balloon provides an anchoring point. In one embodiment, the first balloon has protrusions to help secure its position. In one embodiment, once the first balloon is inflated, it provides a fixed position relative to which a second balloon is accurately positioned in the treatment region. In another embodiment, a second balloon imparts a radial force. In another embodiment, a second balloon imparts an axial force, using the first balloon as an anchor against which the force is applied. The force may be applied in a forward or a backward direction. In yet another embodiment, a second balloon imparts a rotational force, using the first balloon as an anchor against which the force is applied.

    摘要翻译: 本发明的实施例涉及一种用于双球囊导管的精确定位的方法和装置。 在本发明的一个实施例中,第一球囊提供锚定点。 在一个实施例中,第一气囊具有突起以帮助确保其位置。 在一个实施例中,一旦第一球囊被充气,其提供固定位置,相对于该固定位置,第二球囊被准确地定位在治疗区域中。 在另一个实施例中,第二球囊赋予径向力。 在另一个实施例中,第二球囊使用第一气球作为施加力的锚杆施加轴向力。 该力可以向前或向后施加。 在另一个实施例中,第二球囊使用第一气球作为施加力的锚杆施加旋转力。

    Stent expansion and apposition sensing
    2.
    发明授权
    Stent expansion and apposition sensing 失效
    支架扩张和并置感应

    公开(公告)号:US06179858B2

    公开(公告)日:2001-01-30

    申请号:US09227555

    申请日:1999-01-08

    IPC分类号: A61B1700

    CPC分类号: A61F2/958 A61M2025/0002

    摘要: An apposition sensing system including a stent; a catheter assembly to which the stent is coupled for deployment into a lumen; and a sensor positioned on the catheter assembly adjacent to an end of the stent. The sensor is adapted to provide an electrical parameter which is indicative of apposition of the end of the stent to the inner wall of the lumen. In one aspect of the invention, the sensor includes first and second pressure sensors positioned at proximal and distal portions of the catheter assembly adjacent to proximal and distal ends of the stent. A monitoring unit monitors pressure changes sensed by the sensors. In accordance with an alternative embodiment of the invention, there is provided an expansion sensing system including a stent having an electrically conductive region; an expandable insulating sleeve; a catheter assembly to which the stent is coupled for deployment into a lumen; and at least one electrode associated with the catheter assembly. The sleeve is positioned between the electrode and the conductive region, the electrode and conductive region being adapted to provide an electrical parameter which varies in correspondence with expansion of the stent. In one aspect of the invention, the sleeve positioned between the electrode and the conductive region define a variable capacitor. A monitoring unit monitors variations in capacitance between the electrode and conductive region which is directly proportional to the change in stent diameter.

    摘要翻译: 包括支架的安置感测系统; 导管组件,所述支架联接到所述导管组件以展开到内腔中; 以及位于导管组件上邻近支架端部的传感器。 传感器适于提供电参数,其指示支架的端部与内腔的内壁的并置。 在本发明的一个方面,传感器包括位于导管组件的邻近支架的近端和远端的近端部分和远端部分的第一和第二压力传感器。 监控单元监视传感器感测到的压力变化。 根据本发明的替代实施例,提供了一种包括具有导电区域的支架的膨胀感测系统; 可膨胀绝缘套管; 导管组件,所述支架联接到所述导管组件以展开到内腔中; 以及与导管组件相关联的至少一个电极。 套筒位于电极和导电区域之间,电极和导电区域适于提供根据支架膨胀而变化的电参数。 在本发明的一个方面,位于电极和导电区域之间的套筒限定可变电容器。 监测单元监测电极和导电区域之间的电容变化,其与支架直径的变化成正比。

    Stent slip sensing system and method
    3.
    发明授权
    Stent slip sensing system and method 失效
    支架滑移检测系统及方法

    公开(公告)号:US6091980A

    公开(公告)日:2000-07-18

    申请号:US225282

    申请日:1999-01-05

    CPC分类号: A61F2/958

    摘要: An endoluminal device slippage sensor system including an electrically conductive endoluminal device and a catheter assembly to which the device is coupled for deployment into a lumen. First, second and third electrodes are associated with the catheter assembly, each respectively in direct electrical contact with a proximal, a middle and a distal portion of the device. A potential source generates a potential between the first and second electrodes and between the second and third electrodes. The potential between the electrodes is varied in accordance with a change of position of the device along the axis of the catheter assembly during deployment in which the proximal or distal portion of the device is disconnected from the first or third electrode, respectively. In accordance with another embodiment of the invention there is provided an endoluminal device slippage sensor system including an electrically conductive endoluminal device and a catheter assembly to which the device is coupled for deployment into a lumen. At least two electrodes are mounted longitudinally along the length of the catheter assembly, each of the electrodes being in direct electrical contact with the device. A potential source generates a potential between the electrodes, the potential between the electrodes being varied in accordance with a change of position of the device along the axis of the catheter assembly.

    摘要翻译: 包括导电腔内装置和导管组件的腔内装置滑动传感器系统,所述装置与所述导管组件联接以将其部署到管腔中。 首先,第二和第三电极与导管组件相关联,每个分别与装置的近端,中间和远端部分直接电接触。 电位源在第一和第二电极之间以及第二和第三电极之间产生电位。 电极之间的电势根据装置沿着导管组件的轴线在展开期间的位置的变化而变化,其中装置的近侧或远端部分别与第一或第三电极分离。 根据本发明的另一个实施例,提供了一种腔内装置滑动传感器系统,其包括导电腔内装置和导管组件,该装置连接到导管组件以部署到内腔中。 至少两个电极沿导管组件的长度纵向安装,每个电极与装置直接电接触。 电位源在电极之间产生电位,电极之间的电位根据器件沿着导管组件的轴线的位置变化而变化。

    System for communicating location of survivors in mine emergencies
    4.
    发明授权
    System for communicating location of survivors in mine emergencies 有权
    在矿井紧急情况下传播幸存者的位置的系统

    公开(公告)号:US07843768B2

    公开(公告)日:2010-11-30

    申请号:US12082587

    申请日:2008-04-11

    IPC分类号: H04B1/02

    CPC分类号: H04B1/034

    摘要: The disclosed system uses seismic signaling to locate survivors in a mine collapse. A separate transmitter with a specific pre-selected frequency or frequencies is placed in pre-positioned safety zones of a mine. The system generates frequency-locked, unmodulated seismic energy, which allows rescuers to identify the safety zone where a transmitter is activated. The transmitter comprises an oscillator that generates the signal. The oscillator drives the transducer. The transducer causes the inertial mass to move. The movement of the inertial mass generates the seismic waves, which are conducted through the pressure plate to the earth. The seismic signal is detected then amplified, filtered, converted and then processed. The use of a continuous signal enables the processing unit to identify the frequency of the signal with a very low error rate, using frequency content identification. The disclosure also describes a method for transmitting seismic waves through the earth using the above described system.

    摘要翻译: 所公开的系统使用地震信号来定位矿井崩溃中的幸存者。 具有特定预选频率或频率的单独发射器放置在矿井的预定位安全区域。 该系统产生频率锁定,未调制的地震能量,这使得救援人员能够识别发射器被激活的安全区域。 发射机包括产生信号的振荡器。 振荡器驱动传感器。 换能器使惯性质量块移动。 惯性质量的运动产生了通过压力板传递到地球的地震波。 检测到地震信号,然后进行放大,滤波,转换处理。 使用连续信号使得处理单元能够使用频率内容识别以非常低的误码率来识别信号的频率。 本公开还描述了使用上述系统将地震波传播通过地球的方法。

    System for communicating location of survivors in mine emergencies
    5.
    发明申请
    System for communicating location of survivors in mine emergencies 有权
    在矿井紧急情况下传播幸存者的位置的系统

    公开(公告)号:US20090257316A1

    公开(公告)日:2009-10-15

    申请号:US12082587

    申请日:2008-04-11

    IPC分类号: H04B1/38

    CPC分类号: H04B1/034

    摘要: The disclosed system uses seismic signaling to locate survivors in a mine collapse. A separate transmitter with a specific pre-selected frequency or frequencies is placed in pre-positioned safety zones of a mine. The system generates frequency-locked, unmodulated seismic energy, which allows rescuers to identify the safety zone where a transmitter is activated. The transmitter comprises an oscillator that generates the signal. The oscillator drives the transducer. The transducer causes the inertial mass to move. The movement of the inertial mass generates the seismic waves, which are conducted through the pressure plate to the earth. The seismic signal is detected then amplified, filtered, converted and then processed. The use of a continuous signal enables the processing unit to identify the frequency of the signal with a very low error rate, using frequency content identification. The disclosure also describes a method for transmitting seismic waves through the earth using the above described system.

    摘要翻译: 所公开的系统使用地震信号来定位矿井崩溃中的幸存者。 具有特定预选频率或频率的单独发射器放置在矿井的预定位安全区域。 该系统产生频率锁定,未调制的地震能量,这使得救援人员能够识别发射器被激活的安全区域。 发射机包括产生信号的振荡器。 振荡器驱动传感器。 换能器使惯性质量块移动。 惯性质量的运动产生了通过压力板传递到地球的地震波。 检测到地震信号,然后进行放大,滤波,转换处理。 使用连续信号使得处理单元能够使用频率内容识别以非常低的误码率来识别信号的频率。 本公开还描述了使用上述系统将地震波传播通过地球的方法。