-
公开(公告)号：US20120116387A1
公开(公告)日：2012-05-10
申请号：US12951200
申请日：2010-11-22
IPC分类号： A61B18/14
CPC分类号： A61B18/1206 , A61B18/1492 , A61B18/16 , A61B2018/00577 , A61B2018/00779 , A61B2018/00821 , A61B2018/00875 , A61B2018/124 , A61B2018/128 , A61B2018/1286 , A61B2018/1467 , A61B2034/2051
摘要： Apparatus, including an energy generator, configured to supply first ablation power modulated at a first frequency and second ablation power modulated at a second frequency different from the first frequency. The apparatus also includes a probe, having at least one electrode coupled to receive the first and second ablation powers simultaneously and to dissipate the first and second ablation powers in body tissue in contact with the at least one electrode.
摘要翻译： 包括能量发生器的装置，其被配置为提供以第一频率调制的第一消融功率和以不同于第一频率的第二频率调制的第二消融功率。 该装置还包括探针，其具有耦合以同时接收第一和第二消融功率的至少一个电极并且消散与至少一个电极接触的身体组织中的第一和第二消融功率。
-
公开(公告)号：US20110313352A1
公开(公告)日：2011-12-22
申请号：US13223804
申请日：2011-09-01
IPC分类号： A61M25/092
CPC分类号： A61M25/0147 , A61B34/20 , A61B34/30 , A61B34/71 , A61B2017/003 , A61B2034/2051 , A61B2034/2072 , A61B2034/301 , A61M25/0158 , A61M2025/0058
摘要： Apparatus is provided for use with a steerable catheter that includes a thumb control adapted to control a deflection of a distal tip of the catheter. The apparatus includes a robot, including an end-effector, adapted to be coupled to the thumb control, and a controller, adapted to drive the end-effector to deflect the distal tip by manipulating the thumb control. The controller has an algorithm that uses an iterative process to direct the distal tip of the catheter to a desired position, responsive to six dimensions of location and orientation information position information
摘要翻译： 提供了与可导向导管一起使用的装置，其包括适于控制导管的远侧末端的偏转的拇指控制。 该装置包括适于联接到拇指控制器的终端执行器的机器人，以及适于通过操纵拇指控制来驱动末端执行器偏转远侧末端的控制器。 控制器具有使用迭代过程将导管的远端引导到期望位置的算法，其响应于位置和方向信息位置信息的六个维度
-
公开(公告)号：US07860553B2
公开(公告)日：2010-12-28
申请号：US11351135
申请日：2006-02-09
IPC分类号： A61B5/05
CPC分类号： A61B5/042 , A61B5/062 , A61B8/12 , A61B8/4254 , A61B8/4411 , A61B2017/00482 , A61B2562/085
摘要： A probe for insertion into the body of a subject includes a sensor, a first microcircuit, which stores first calibration data with respect to the sensor, and a first connector at the proximal end of the probe. A probe adapter includes a second connector, which mates with the first connector, a signal processing circuit, which is processes the sensor signal, and a second microcircuit, which stores second calibration data with respect to the signal processing circuit. A microcontroller in the adapter receives the first and second calibration data and computes combined calibration data. The adapter includes a third connector, which mates with a fourth connector on a console. The console includes signal analysis circuitry, which analyzes the processed signal using the combined calibration data provided by the probe adapter.
摘要翻译： 用于插入对象体内的探针包括传感器，第一微电路，其存储关于传感器的第一校准数据，以及在探针的近端处的第一连接器。 探针适配器包括与第一连接器配合的第二连接器，处理传感器信号的信号处理电路和存储关于信号处理电路的第二校准数据的第二微电路。 适配器中的微控制器接收第一和第二校准数据并计算组合的校准数据。 适配器包括第三连接器，其与控制台上的第四连接器配合。 控制台包括信号分析电路，其使用由探头适配器提供的组合校准数据分析处理的信号。
-
公开(公告)号：US07684850B2
公开(公告)日：2010-03-23
申请号：US11424105
申请日：2006-06-14
CPC分类号： A61B5/06 , A61B5/063 , A61B2034/2053 , A61N1/08
摘要： A method for position sensing includes placing at a known position within a body of a subject a reference probe including at least one reference electrode. Electrical currents are passed through the body between the reference electrode and body surface electrodes. Characteristics of the electrical currents are measured and are used to generate an approximation of the known position of the reference probe. A correction factor is determined based on a relationship between the approximation and the known position. A target probe including at least one target electrode is placed within the body of the subject and second electrical currents are passed through the body between the target electrode and the body surface electrodes. Characteristics of the second electrical currents are measured and used to generate a calculated position of the target probe. The correction factor is applied to correct the calculated position.
摘要翻译： 一种用于位置检测的方法包括将包括至少一个参考电极的参考探针放置在受试者体内的已知位置处。 电流通过参考电极和体表电极之间的主体。 测量电流的特性并用于产生参考探头的已知位置的近似值。 基于近似和已知位置之间的关系来确定校正因子。 将包括至少一个目标电极的目标探针放置在受试者的体内，并且使第二电流通过目标电极和体表电极之间的主体。 测量第二电流的特性并用于产生目标探针的计算位置。 应用校正因子来校正计算出的位置。
-
公开(公告)号：US20090177089A1
公开(公告)日：2009-07-09
申请号：US11969504
申请日：2008-01-04
IPC分类号： A61B8/14
CPC分类号： A61B8/543 , A61B6/541 , A61B8/12 , A61B8/14 , G06T7/13 , G06T7/564 , G06T2207/10012 , G06T2207/10132 , G06T2207/30048
摘要： A method for imaging of an anatomical structure includes acquiring a plurality of ultrasonic images of the anatomical structure. At least one of the images includes Doppler information. One or more contours of the anatomical structure are generated from the Doppler information. A three-dimensional image of the anatomical structure is reconstructed from the plurality of ultrasonic images, using the one or more contours.
摘要翻译： 用于对解剖结构进行成像的方法包括获取解剖结构的多个超声图像。 至少一幅图像包括多普勒信息。 解剖结构的一个或多个轮廓由多普勒信息产生。 使用一个或多个轮廓，从多个超声波图像重建解剖结构的三维图像。
-
公开(公告)号：US20090138007A1
公开(公告)日：2009-05-28
申请号：US12327226
申请日：2008-12-03
IPC分类号： A61B18/18
CPC分类号： A61B5/48 , A61B1/0008 , A61B5/06 , A61B5/065 , A61B5/6885 , A61B18/1492 , A61B2018/00351 , A61B2034/2051 , A61B2090/064 , A61B2090/065 , A61B2090/3958 , A61B2562/0247 , A61N1/056 , A61N1/08
摘要： A medical probe includes an insertion tube, having a longitudinal axis and having a distal end. A distal tip is disposed at the distal end of the insertion tube and is configured to be brought into contact with a body tissue. A joint couples the distal tip to the distal end of the insertion tube. A joint sensor, contained within the probe, senses a position of the distal tip relative to the distal end of the insertion tube. The joint sensor includes first and second subassemblies, which are disposed within the probe on opposite, respective sides of the joint and each include one or more magnetic transducers.
摘要翻译： 医疗探针包括具有纵向轴线并具有远端的插入管。 远侧末端设置在插入管的远端，并被构造成与身体组织接触。 关节将远侧末端连接到插入管的远端。 包含在探针内的关节传感器感测远侧末端相对于插入管的远端的位置。 联合传感器包括第一和第二子组件，其在接头的相对的相对侧设置在探针内，并且每个包括一个或多个磁性换能器。
-
公开(公告)号：US07536218B2
公开(公告)日：2009-05-19
申请号：US11182272
申请日：2005-07-15
IPC分类号： A61B5/05
CPC分类号： A61B5/063 , A61B5/0035 , A61B5/0538
摘要： A position sensing system includes a probe adapted to be introduced into a body cavity of a subject. The probe includes a magnetic field transducer and at least one probe electrodes. A control unit is configured to measure position coordinates of the probe using the magnetic field transducer. The control unit also measures an impedance between the at least one probe electrodes and one or more points on a body surface of the subject. Using the measured position coordinates, the control unit calibrates the measured impedance.
摘要翻译： 位置感测系统包括适于被引入被检体体腔的探头。 探头包括磁场换能器和至少一个探针电极。 控制单元被配置为使用磁场换能器来测量探头的位置坐标。 控制单元还测量至少一个探针电极与被检体的身体表面上的一个或多个点之间的阻抗。 使用测量的位置坐标，控制单元校准测量的阻抗。
-
公开(公告)号：US20070106147A1
公开(公告)日：2007-05-10
申请号：US11264221
申请日：2005-11-01
申请人： Andres Altmann , Yaron Ephrath , Assaf Govari
发明人： Andres Altmann , Yaron Ephrath , Assaf Govari
CPC分类号： A61B8/543 , A61B8/12 , A61B34/20 , A61B34/30 , A61B34/70 , A61B2034/105 , A61B2034/2051 , A61B2034/301 , A61B2034/304 , A61B2090/378 , A61B2090/3784
摘要： The position of an imaging catheter in a body structure such as the heart is automatically controlled by a robotic manipulator such that its field of view at all times includes the distal end of a second catheter that is employed to effect a medical procedure. A processor receives signals from position sensors in the catheters. The processor utilizes the information received from the sensors and continually determines any deviation of the second catheter from the required field of view of the imaging catheter. The processor transmits compensation instructions to the robotic manipulator, which when executed assure that the imaging catheter tracks the second catheter.
摘要翻译： 成像导管在诸如心脏的身体结构中的位置由机器人操纵器自动控制，使得其视野始终包括用于实现医疗程序的第二导管的远端。 处理器从导管中的位置传感器接收信号。 处理器利用从传感器接收的信息，并且连续地确定第二导管与成像导管的所需视场的任何偏差。 处理器将补偿指令传送到机器人操纵器，其在执行时确保成像导管跟踪第二导管。
-
公开(公告)号：US20070032960A1
公开(公告)日：2007-02-08
申请号：US11181717
申请日：2005-07-14
申请人： Andres Altmann , Assaf Govari , Yaron Ephrath
发明人： Andres Altmann , Assaf Govari , Yaron Ephrath
CPC分类号： A61B5/06 , A61B5/0031 , A61B5/062 , A61B5/7257 , A61B34/20 , A61B90/36 , A61B2034/2051
摘要： A method for transmitting control instructions to a sensor in a position tracking system includes generating a drive signal for driving a field generator. A control signal including the control instructions is superimposed on the drive signal. The field generator is driven with the drive signal, so as to generate a field to be sensed by the sensor. The field is detected at the sensor in order to determine position coordinates of the sensor and to demodulate the control signal so as to extract the control instructions. A functionality of the sensor is controlled based on the extracted control instructions.
摘要翻译： 在位置跟踪系统中向控制指令发送控制指令的方法包括产生用于驱动场发生器的驱动信号。 包括控制指令的控制信号叠加在驱动信号上。 磁场发生器用驱动信号驱动，以便产生要由传感器感测的场。 在传感器处检测该场，以便确定传感器的位置坐标并解调控制信号以提取控制指令。 基于所提取的控制指令来控制传感器的功能。
-
公开(公告)号：US09295529B2
公开(公告)日：2016-03-29
申请号：US11130423
申请日：2005-05-16
CPC分类号： A61B34/20 , A61B90/39 , A61B2034/2051 , A61B2090/3958 , A61B2090/397 , A61B2090/3975 , A61B2090/3983
摘要： A method for tracking a position of a sensor includes generating a periodic magnetic field in a vicinity of the sensor, the field having a positive polarity phase and a negative polarity phase with respective constant positive and negative amplitudes. First and second field measurement signals are produced responsively to the magnetic field at the sensor during the positive and negative polarity phases, respectively. The position of the sensor is determined responsively to the first and second field measurement signals.
-
-
-
-
-
-
-
-
-
搜索结果
92 条记录 (耗时 0.032 秒)
