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91. 发明申请

US20050033136A1 Catheter with electrode strip 审中-公开
标题翻译：导管带电极条
公开(公告)号：US20050033136A1
公开(公告)日：2005-02-10
申请号：US10633298
申请日：2003-08-01
申请人： Assaf Govari , Andres Altmann
发明人： Assaf Govari , Andres Altmann
IPC分类号： A61B5/0408 , A61B1/012 , A61B5/042 , A61B5/0478 , A61B5/0492 , A61B18/14 , A61N1/05 , A61B5/04
CPC分类号： A61N1/056 , A61B5/0422 , A61B18/1492 , A61B2017/003 , A61B2018/1435 , A61B2018/1467 , A61B2562/043 , A61N1/05
摘要： Apparatus for medical treatment or diagnosis in a body cavity of a mammalian subject includes an elongate probe, having an outer surface and comprising a distal portion, which is adapted for insertion into the body cavity. An electrode strip includes an elongate insulating substrate, which is wrapped around the distal portion of the probe so as to define a helix having distal and proximal ends and a length therebetween, the substrate being fixed to the outer surface of the probe over substantially all of the length of the helix. A plurality of electrodes are disposed along the length of the helix and fixed to the substrate. Electrical conductors are coupled to the electrodes and run along the substrate over the length of the helix so as to communicate with circuitry in a location proximal to the distal portion of the probe.
摘要翻译：用于在哺乳动物受试者的体腔中进行医疗或诊断的装置包括细长探针，其具有外表面并且包括适于插入体腔的远侧部分。电极条包括细长的绝缘基底，其围绕探针的远端部分缠绕以便限定具有远端和近端的螺旋和其间的长度，基底基本上全部固定在探针的外表面上螺旋的长度。沿着螺旋的长度设置多个电极并固定到基板。电导体耦合到电极并沿着螺旋线的长度沿着衬底延伸，以便在靠近探针的远端部分的位置与电路连通。

92. 发明申请

US20050027195A1 Calibration data compression 审中-公开
标题翻译：校准数据压缩
公开(公告)号：US20050027195A1
公开(公告)日：2005-02-03
申请号：US10633299
申请日：2003-08-01
申请人： Assaf Govari
发明人： Assaf Govari
IPC分类号： A61B1/012 , A61B5/06 , A61B19/00 , A61M25/00 , A61B5/05
CPC分类号： A61B5/065 , A61B5/06 , A61B8/0841 , A61B34/20 , A61B2034/2051 , A61B2560/0223 , A61B2562/085
摘要： A method for calibrating is provided, including receiving, for each of a plurality of frequencies, an indication of a characteristic sensitivity of a position sensor for placement in a patient; measuring an actual sensitivity of the position sensor at each of the plurality of frequencies; and determining, at each of the plurality of frequencies, calibration data indicative of a deviation of the actual sensitivity from the characteristic sensitivity.
摘要翻译：提供了一种用于校准的方法，包括为多个频率中的每一个接收用于放置在患者体内的位置传感器的特征灵敏度的指示; 测量所述多个频率中的每一个处的位置传感器的实际灵敏度; 以及在所述多个频率中的每一个处确定指示所述实际灵敏度与所述特征灵敏度的偏差的校准数据。

93. 发明申请

US20050024043A1 Detection of metal disturbance in a magnetic tracking system 有权
标题翻译：磁跟踪系统中金属干扰的检测
公开(公告)号：US20050024043A1
公开(公告)日：2005-02-03
申请号：US10632217
申请日：2003-07-31
申请人： Assaf Govari
发明人： Assaf Govari
IPC分类号： G01S5/04 , A61B5/06 , A61B17/00 , A61B19/00 , G01B7/00 , G01B7/14 , G01B7/30
CPC分类号： A61B5/062 , A61B2017/00039 , A61B2034/2051
摘要： A method for tracking an object includes producing energy fields at a plurality of different frequencies in a vicinity of the object, and receiving signals that are generated at a location of the object at the different frequencies in response to the energy fields. Multiple computations are made of spatial coordinates of the object based on the signals received at the different frequencies. Convergence of the computations is tested in order to ascertain whether the energy fields have been perturbed by an article in the vicinity of the object.
摘要翻译：用于跟踪对象的方法包括产生在对象附近的多个不同频率处的能量场，以及响应于能量场在不同频率处接收在对象的位置处生成的信号。基于在不同频率处接收到的信号，对物体的空间坐标进行多次计算。测试计算的收敛性，以确定能量场是否被物体附近的物品扰乱。

94. 发明授权

US06658300B2 Telemetric reader/charger device for medical sensor 有权
公开(公告)号：US06658300B2
公开(公告)日：2003-12-02
申请号：US09739575
申请日：2000-12-18
申请人： Assaf Govari , Shlomo Ben-Haim , Joel Zilberstein
发明人： Assaf Govari , Shlomo Ben-Haim , Joel Zilberstein
IPC分类号： A61N108
CPC分类号： A61B5/0031 , A61B5/0215 , A61B5/076 , A61B5/6882 , A61B2560/0219 , Y10S128/903
摘要： A signal reading and charging device for use with an implantable telemetric medical sensor comprises a casing and a circuit within the casing comprising a logic control unit and a processing unit. The logic control unit sends a powering signal to the telemetric medical sensor for remotely powering the sensor. The logic control unit also receives a transmitted signal from the sensor. The processing unit is operatively connected to the control unit for converting the transmitted signal by the sensor into a measured parameter. An antenna coil is used for sending the powering signal and receiving the transmitted signal from the sensor. The device also includes a display for displaying the measured parameter.

95. 发明授权

US06652464B2 Intracardiac pressure monitoring method 有权
公开(公告)号：US06652464B2
公开(公告)日：2003-11-25
申请号：US09739062
申请日：2000-12-18
申请人： Yitzhack Schwartz , Assaf Govari , Shlomo Ben-Haim , Joel Zilberstein , Louis J. Capezzuto
发明人： Yitzhack Schwartz , Assaf Govari , Shlomo Ben-Haim , Joel Zilberstein , Louis J. Capezzuto
IPC分类号： A61B502
CPC分类号： A61B5/6882 , A61B5/0031 , A61B5/0215 , A61B5/076 , A61B2560/0219 , A61B2562/0233 , A61B2562/046 , Y10S128/903
摘要： A method for telemetrically measuring a parameter in a patient's heart comprises the steps of imaging the heart and identifying an implantation site in the heart. An opening is created in the tissue at the implantation site. A sensor comprising a housing, a membrane at one end of the housing wherein the membrane is deformable in response to the parameter, and a microchip positioned within the housing and operatively communicating with the membrane for transmitting a signal indicative of the parameter is provided. The sensor is placed in the opening and the parameter is telemetrically measured from outside of the patient's body based on the transmitted signal by the sensor. The sensor is also telemetrically powered from outside of the patient's body. A signal charging and reading device is placed outside of the patient's body for telemetric powering and signal reading with respect to the sensor. In an alternative embodiment, the sensor has a tapered distal end and a tissue piercing tip for direct implantation into tissue. Alternative embodiments of this sensor include helical threads on the tapered distal end for threading the sensor into tissue and a plurality of tissue barbs for direct and firm anchoring of the sensor in tissue.

96. 发明授权

US06584345B2 Apparatus and method for measuring a plurality of electrical signals from the body of a patient 有权
标题翻译：用于从患者的身体测量多个电信号的装置和方法
公开(公告)号：US06584345B2
公开(公告)日：2003-06-24
申请号：US09805093
申请日：2001-03-13
申请人： Assaf Govari
发明人： Assaf Govari
IPC分类号： A61B504
CPC分类号： A61B5/0422 , A61B2562/0209 , A61B2562/043 , A61B2562/046 , Y10S128/901
摘要： An apparatus for measuring electrical signals emanating from a body of a patient, and, in particular, from the patient's heart, comprises a catheter having an electrode array, preferably on its distal end. The apparatus of the invention further comprises a first amplifier for measuring a voltage from a first electrode of the array, and a cascade of differential amplifiers, each of which measures a voltage difference between two successive electrodes in the array. The voltage, Vn, at electrode n is given by the expression: V n = a 1 + ∑ i = 2 n ⁢ ⁢ a i , wherein a1, is the voltage at the first electrode as measured by the first amplifier and each ai, is a differential voltage between electrode i and electrode (i−1) of the array as measured by the differential amplifiers. The catheter electrode array preferably comprises at least one contact electrode and a plurality of non-contact electrodes, the first amplifier is preferably used to measure the signal at the contact electrode and the amplifier cascade is preferably used to measure the signals from the non-contact electrodes. The catheter further preferably comprises at least one position sensor, preferably, an electromagnetic position sensor.
摘要翻译：用于测量从患者身体，特别是患者心脏发出的电信号的装置包括具有电极阵列的导管，优选地在其远端上。本发明的装置还包括用于测量来自阵列的第一电极的电压的第一放大器和差分放大器的级联，每个差分放大器测量阵列中两个连续电极之间的电压差。电极n处的电压Vn由以下表达式给出：其中a1是由第一放大器测量的第一电极处的电压，并且每个ai是电极i和电极i与电极（i-1）之间的差分电压阵列由差分放大器测量。导管电极阵列优选地包括至少一个接触电极和多个非接触电极，第一放大器优选地用于测量接触电极处的信号，并且放大器级联优选地用于测量来自非接触的信号电极。导管还优选地包括至少一个位置传感器，优选地包括电磁位置传感器。

97. 发明授权

US06484118B1 Electromagnetic position single axis system 有权
标题翻译：电磁位置单轴系统
公开(公告)号：US06484118B1
公开(公告)日：2002-11-19
申请号：US09620316
申请日：2000-07-20
申请人： Assaf Govari
发明人： Assaf Govari
IPC分类号： G06F1500
CPC分类号： G01B7/004 , A61B5/06 , A61B5/062 , A61B34/20 , A61B2034/2051 , A61B2034/2072 , H01F2005/027
摘要： A system for determining the position of a medical device having a sensor comprises a plurality of field radiators wherein each field radiator has a plurality of radiator elements. Each radiator element generates a magnetic field such that each magnetic field is distinct from one another due to the use of a different frequency through simultaneous energizing of the radiator elements. A signal processor is operatively connected to the field radiators and the sensor of the medical device for receiving a sensing signal from the sensor indicative of the magnetic field sensed at the sensor. Alternative field radiator arrangements are also provided in conjunction with a novel algorithm utilizing a global convergent technique.
摘要翻译：用于确定具有传感器的医疗装置的位置的系统包括多个场辐射器，其中每个场辐射器具有多个散热器元件。每个散热器元件产生磁场，使得每个磁场由于通过同时激励散热器元件而使用不同的频率彼此不同。信号处理器可操作地连接到现场辐射器和医疗设备的传感器，用于从传感器接收指示在传感器处感测到的磁场的感测信号。结合使用全局收敛技术的新颖算法也提供了替代场辐射器布置。

98. 发明授权

US06335617B1 Method and apparatus for calibrating a magnetic field generator 有权
标题翻译：用于校准磁场发生器的方法和装置
公开(公告)号：US06335617B1
公开(公告)日：2002-01-01
申请号：US09180244
申请日：1999-03-08
申请人： Daniel Osadchy , Assaf Govari
发明人： Daniel Osadchy , Assaf Govari
IPC分类号： G01R3500
CPC分类号： G01R33/246 , A61B5/06 , A61B5/062 , G01R33/02 , G01R33/58 , G01R35/00
摘要： A method for calibrating a magnetic field generator, including fixing one or more magnetic field sensors to a probe in known positions and orientations and selecting one or more known locations in the vicinity of the magnetic field generator. The magnetic field generator is driven so as to generate a magnetic field. The probe is moved in a predetermined, known orientation to each of the one or more locations, and signals are received from the one or more sensors at each of the one or more locations. The signals are processed to measure the amplitude and direction of the magnetic field, at the respective positions of the one or more sensors and to determine calibration factors relating to the amplitude and direction of the magnetic field in the vicinity of the magnetic field generator.
摘要翻译：一种用于校准磁场发生器的方法，包括将已知位置和取向中的一个或多个磁场传感器固定到探头，并选择磁场发生器附近的一个或多个已知位置。磁场发生器被驱动以产生磁场。探针以预定的已知方向移动到一个或多个位置中的每个位置，并且在一个或多个位置的每一个处从一个或多个传感器接收信号。处理这些信号以测量一个或多个传感器的相应位置处的磁场的幅度和方向，并且确定与磁场发生器附近的磁场的振幅和方向有关的校准因子。

99. 发明授权

US06201387B1 Miniaturized position sensor having photolithographic coils for tracking a medical probe 有权
标题翻译：具有用于跟踪医疗探针的光刻线圈的小型化位置传感器
公开(公告)号：US06201387B1
公开(公告)日：2001-03-13
申请号：US09160063
申请日：1998-09-24
申请人： Assaf Govari
发明人： Assaf Govari
IPC分类号： A61B506
CPC分类号： A61B5/065 , A61B5/06 , A61B5/062 , A61B5/6852 , G01B7/003 , G01B7/004 , G01B7/30 , G01D5/2073 , G01D5/2086 , H01Q7/08
摘要： A miniature coil assembly for transmitting or receiving magnetic waves comprises a plurality of coils wherein each coil has a respective axis. The coil assembly is assembled such that at least two of the axes are mutually linearly independent, and such that all of the plurality of coils are contained within a volume having a cross-sectional area less than 1.0 mm2. At least two of the coils are photolithographic coils.
摘要翻译：用于发送或接收磁波的微型线圈组件包括多个线圈，其中每个线圈具有相应的轴线。线圈组件被组装成使得至少两个轴线相互线性独立，并且使得所有多个线圈都包含在横截面积小于1.0mm 2的体积内。至少两个线圈是光刻线圈。

100. 发明授权

US10624553B2 Probe data mapping using contact information 有权
公开(公告)号：US10624553B2
公开(公告)日：2020-04-21
申请号：US12633324
申请日：2009-12-08
申请人： Assaf Govari , Andres Claudio Altmann , Yaron Ephrath
发明人： Assaf Govari , Andres Claudio Altmann , Yaron Ephrath
IPC分类号： A61B5/042 , A61B5/00 , A61B90/00 , A61B5/06 , A61B34/20
CPC分类号： A61B5/042 , A61B5/062 , A61B5/6885 , A61B90/06 , A61B34/20 , A61B2090/065
摘要： A method of mapping includes receiving inputs measured by a probe at respective locations inside a body cavity of a subject. At each of the respective locations, a respective contact quality between the probe and a tissue in the body cavity is measured. The inputs for which the respective contact quality is outside a defined range are rejected, and a map of the body cavity is created using the inputs that are not rejected.

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