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公开(公告)号：US20050124898A1
公开(公告)日：2005-06-09
申请号：US10997898
申请日：2004-11-29
CPC分类号： A61B8/12
摘要： An interface for limiting an amount of current passing to an intra-body medical device is provided, the interface including a first catheter port configured for coupling with a first catheter, a first processor port configured for coupling with a first cable linkable to a first processor, and a current isolator coupled to the first catheter port and to the first processor port, the current isolator limiting an amount of current passing to the first catheter port.
摘要翻译： 提供了一种用于限制流过体内医疗装置的电流量的界面，所述界面包括被配置为与第一导管联接的第一导管端口，第一处理器端口，被配置为与可连接到第一处理器 以及耦合到第一导管端口和第一处理器端口的电流隔离器，电流隔离器限制流过第一导管端口的电流量。
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公开(公告)号：US20050228290A1
公开(公告)日：2005-10-13
申请号：US10819358
申请日：2004-04-07
CPC分类号： A61B8/12 , A61B8/4461 , A61B8/4466 , A61B8/4488
摘要： Steerable catheters are provided including an elongated flexible member having a proximal end, a distal end and a lumen extending therebetween (i.e., between the proximal end and the distal end). A plurality of electrical cables is bundled together and positioned within the lumen of the flexible member. The cross-section of the bundle of electrical cables is substantially ovular or rectangular so as to be bendable in two approximately opposite directions. Methods of steering such a catheter within a body include advancing the catheter within a body while a first force is applied to the bundle of electrical cables to cause the distal end of the elongate flexible member to form a bend. The catheter is farther advanced within the body while a second, opposite force is applied to the bundle of electrical cables to remove the bend in the distal end.
摘要翻译： 提供了可转向导管，其包括细长的柔性构件，其具有近端，远端和在其间延伸的内腔（即，在近端和远端之间）。 多根电缆捆绑在一起并定位在柔性部件的内腔内。 电缆束的横截面基本上是卵形或矩形的，以便可在两个大致相反的方向上弯曲。 在体内导管这种导管的方法包括将导管推进体内，同时向电缆束施加第一力，以使细长柔性构件的远端形成弯曲部。 导管在体内进一步前进，而第二相反的力施加到电缆束以去除远端中的弯曲部。
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公开(公告)号：US07507205B2
公开(公告)日：2009-03-24
申请号：US10819358
申请日：2004-04-07
IPC分类号： A61B8/14
CPC分类号： A61B8/12 , A61B8/4461 , A61B8/4466 , A61B8/4488
摘要： Steerable catheters are provided including an elongated flexible member having a proximal end, a distal end and a lumen extending therebetween (i.e., between the proximal end and the distal end). A plurality of electrical cables is bundled together and positioned within the lumen of the flexible member. The cross-section of the bundle of electrical cables is substantially ovular or rectangular so as to be bendable in two approximately opposite directions. Methods of steering such a catheter within a body include advancing the catheter within a body while a first force is applied to the bundle of electrical cables to cause the distal end of the elongate flexible member to form a bend. The catheter is farther advanced within the body while a second, opposite force is applied to the bundle of electrical cables to remove the bend in the distal end.
摘要翻译： 提供了可转向导管，其包括细长的柔性构件，其具有近端，远端和在其间延伸的内腔（即，在近端和远端之间）。 多根电缆捆绑在一起并定位在柔性部件的内腔内。 电缆束的横截面基本上是卵形或矩形的，以便可在两个大致相反的方向上弯曲。 在体内导管这种导管的方法包括将导管推进体内，同时向电缆束施加第一力，以使细长柔性构件的远端形成弯曲部。 导管在体内进一步前进，而第二相反的力施加到电缆束以去除远端中的弯曲部。
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公开(公告)号：US20060122514A1
公开(公告)日：2006-06-08
申请号：US10994424
申请日：2004-11-23
IPC分类号： A61B8/14
CPC分类号： A61B8/12 , A61B5/06 , A61B5/062 , A61B5/063 , A61B5/064 , A61B8/4254 , A61B8/4263 , A61B8/445 , A61B8/4488 , A61B8/463 , A61B8/5238 , A61B8/54
摘要： An imaging system is provided with an ultrasound catheter and a controller coupled to the ultrasound catheter. The catheter includes a localizer sensor configured to generate positional information for the ultrasound catheter, and an imaging ultrasound sensor having a restricted field of view. The controller co-registers images from the imaging ultrasound sensor with positional information from the localizer sensor.
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5.发明申请Safety systems and methods for ensuring safe use of intra-cardiac ultrasound catheters 有权用于确保安全使用心脏内超声导管的安全系统和方法公开(公告)号：US20050124899A1
公开(公告)日：2005-06-09
申请号：US10998039
申请日：2004-11-29
摘要： A system and method for limiting a temperature induced in a body by an ultrasound imaging catheter are provided. The method includes receiving, at an isolation box, an imaging signal from an imaging catheter, receiving, at an isolation box, a signal indicative of a temperature of tissue adjacent to the imaging catheter, removing power to the imaging catheter at the isolation box if the signal indicates the temperature of tissue adjacent to the imaging catheter exceeds a known value, and sending the imaging signal from the catheter to a processor if the signal indicates the temperature of tissue adjacent to the imaging catheter is less than the limit.
摘要翻译： 提供了一种用于通过超声成像导管限制身体引起的温度的系统和方法。 该方法包括在隔离箱处接收来自成像导管的成像信号，在隔离盒处接收指示与成像导管相邻的组织的温度的信号，在隔离盒处去除成像导管的电力，如果 信号表示与成像导管相邻的组织的温度超过已知值，并且如果信号指示与成像导管相邻的组织的温度低于极限，则将成像信号从导管发送到处理器。
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公开(公告)号：US20050080336A1
公开(公告)日：2005-04-14
申请号：US11002661
申请日：2004-12-03
申请人： Charles Byrd , Praveen Dala-Krishna
发明人： Charles Byrd , Praveen Dala-Krishna
CPC分类号： A61B8/065 , A61B8/0883 , A61B8/543
摘要： A medical imaging system is provided which includes a signal generator configured to obtain a trigger signal corresponding to a timing of interest, imaging equipment configured to obtain a plurality of images of a feature of interest, and a processor programmed to correlate the plurality of images with the trigger signal. Also provided is a method of correlating a plurality of medical images by obtaining a trigger signal of a timing of interest, obtaining a plurality of images of a feature of interest, and correlating the plurality of images with the trigger signal.
摘要翻译： 提供了一种医疗成像系统，其包括：信号发生器，其被配置为获得对应于感兴趣的定时的触发信号;被配置为获得感兴趣特征的多个图像的成像设备;以及被编程为将所述多个图像与 触发信号。 还提供了一种通过获得感兴趣的定时的触发信号，获得感兴趣的特征的多个图像并将多个图像与触发信号相关联来使多个医学图像相关的方法。
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公开(公告)号：US20070167793A1
公开(公告)日：2007-07-19
申请号：US11302391
申请日：2005-12-14
IPC分类号： A61B8/00
摘要： A method and system for enhancing Doppler spectrum displays is described. Two or more colors are utilized to represent the power scale in the spectral Doppler display. Doppler signals from stronger reflectors of ultrasound, such as cardiac muscle or vessel walls, can then be assigned a different color than Doppler signals from weaker reflectors, such as blood, allowing for better understanding and interpretation of the Doppler spectra.
摘要翻译： 描述了一种用于增强多普勒频谱显示的方法和系统。 利用两种或更多种颜色来表示频谱多普勒显示中的功率尺度。 然后，来自较强的超声反射器（例如心肌或血管壁）的多普勒信号可以被分配与来自较弱反射器（例如血液）的多普勒信号不同的颜色，从而更好地理解和解释多普勒光谱。
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8.发明申请Method and apparatus for imaging distant anatomical structures in intra-cardiac ultrasound imaging 审中-公开用于在心脏内超声成像中成像远处解剖结构的方法和装置公开(公告)号：US20050245822A1
公开(公告)日：2005-11-03
申请号：US11081498
申请日：2005-03-17
CPC分类号： A61B8/065 , A61B8/0883 , A61B8/543
摘要： An intra-cardiac imaging system that includes an ultrasound catheter that can image the left heart from within the right heart. The catheter has a proximal end, a distal end, and a lumen extending therebetween. The distal end includes an acoustic window longitudinally oriented and having a length of at least ten millimeters. A linear ultrasound transducer having an active surface is longitudinally mounted inside the lumen of the catheter at the distal end of the catheter adjacent the acoustic window. The active surface of the ultrasound transducer is directed toward the acoustic window, is approximately the same length as the acoustic window, and is capable of transmitting an ultrasound signal at a frequency of about 1.5 MHz to about 9 MHz.
摘要翻译： 一种心脏内成像系统，其包括可从右心脏内形成左心脏的超声导管。 导管具有近端，远端和在其间延伸的内腔。 远端包括纵向定向并具有至少十毫米长度的声窗。 具有活性表面的线性超声换能器在邻近声窗的导管的远端纵向地安装在导管的内腔内。 超声波换能器的活动表面指向声窗，与声窗大致相同的长度，并且能够以大约1.5MHz至大约9MHz的频率发送超声波信号。
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公开(公告)号：US20050240103A1
公开(公告)日：2005-10-27
申请号：US10827520
申请日：2004-04-20
申请人： Charles Byrd , Praveen Dala-Krishna
发明人： Charles Byrd , Praveen Dala-Krishna
CPC分类号： G01S15/8952 , A61B8/12 , A61B8/461 , A61B8/467 , G01S7/5205
摘要： An ultrasound imaging system is provided with an interface for receiving user input, and a controller coupled to the interface, the controller being adapted and configured to adjust parameters for a catheter-based ultrasound probe in response to received user input. Preferably, the controller is programmed to receive a user request for a desired imaging depth, determine an imaging frequency that corresponds to the desired imaging depth, and adjust the imaging frequency of the system to the determined imaging frequency that corresponds to the desired imaging depth.
摘要翻译： 超声成像系统设置有用于接收用户输入的接口，以及耦合到接口的控制器，所述控制器被适配和配置为响应于接收到的用户输入调整基于导管的超声波探头的参数。 优选地，控制器被编程为接收对期望成像深度的用户请求，确定对应于期望成像深度的成像频率，并将系统的成像频率调整到对应于期望成像深度的确定的成像频率。
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公开(公告)号：US08317711B2
公开(公告)日：2012-11-27
申请号：US11764194
申请日：2007-06-16
申请人： Praveen Dala-Krishna
发明人： Praveen Dala-Krishna
IPC分类号： A61B1/00
CPC分类号： A61B8/4461 , A61B8/12 , A61B8/4245 , A61B8/4281 , A61B8/445 , A61B8/4488 , A61B8/483
摘要： A dynamic ultrasound image catheter includes a catheter body with an acoustic window on the distal end, an ultrasound phased array transducer assembly configured to rotate within the acoustic window through an angle of rotation, an acoustic coupling fluid filling a gap between the transducer array and the acoustic window, and a drive motor at the proximal end of the catheter body that is configured to rotate the transducer array. The drive motor may transmit a rotational force to the ultrasound phased array transducer by a drive wire or by tension wires coupled to drive spools. A system processor coupled to the drive motor controls rotation of the transducer array and estimates the angular orientation of the transducer array. By taking ultrasound images at increments through the angle of rotation, the dynamic ultrasound image catheter can obtain images spanning a volume which can be processed to generate three-dimensional composite images.
摘要翻译： 动态超声波图像导管包括在远端具有声窗的导管主体，超声相控阵列换能器组件，被配置为通过旋转角度在声窗内旋转，填充换能器阵列与 声窗，以及配置成旋转换能器阵列的导管主体的近端处的驱动马达。 驱动马达可以通过驱动线或耦合到驱动线轴的张力线将旋转力传递到超声相控阵列换能器。 耦合到驱动电动机的系统处理器控制换能器阵列的旋转并估计换能器阵列的角度取向。 通过旋转角度以增量拍摄超声图像，动态超声图像导管可以获得跨越可以被处理以产生三维合成图像的体积的图像。
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