-
1.发明授权Apparatus for treating tissue with microwave radiation and antenna calibration system and method 失效用微波辐射处理组织的设备和天线校准系统及方法公开(公告)号：US08653828B2
公开(公告)日：2014-02-18
申请号：US12311553
申请日：2007-10-10
IPC分类号： G01R27/04
CPC分类号： A61B18/1815 , A61B5/0507 , A61B5/053 , A61B18/18 , A61B2017/00725 , A61B2018/00755 , A61B2018/00785 , A61B2018/00875 , A61B2018/1876 , A61N5/02
摘要： A calibration method and apparatus for surgical antennas which are arranged to deliver microwave radiation (e.g. having a treatment frequency of 500 MHz to 100 GHz) into biological tissue is disclosed. An emitting region of the antenna is exposed to a plurality of calibration standards each having a different complex impedance at the treatment frequency. In one embodiment the calibration standards are created in a short-circuit-terminated waveguide cavity of variable length. In another embodiment, each calibration standard is a different mixture of two or more liquids. Measurement of the magnitude and phase of signals reflected from the emitting region when exposed to the calibration standard can permit calibration of the antenna, e.g. by generating a mapping function based on the measured values and known or reference values for the calibration standards. Also disclosed is tissue treatment apparatus having an ablation channel for conveying microwave radiation to a surgical antenna at a high power level and a separate measurement channel for conveying microwave radiation to a surgical antenna at a low power level, wherein the measurement channel bypasses noisy components on the ablation channel. A surgical antenna having an impedance transformer for matching an e.g. coaxial feed structure which terminates in one or more radiating elements with tissue to be treated is also disclosed.
摘要翻译： 公开了一种用于外科天线的校准方法和装置，其被布置为将微波辐射（例如具有500MHz至100GHz的治疗频率）递送到生物组织中。 天线的发射区域暴露于在处理频率处具有不同复阻抗的多个校准标准。 在一个实施例中，在可变长度的短路端接的波导腔中产生校准标准。 在另一个实施方案中，每个校准标准品是两种或更多种液体的不同混合物。 当暴露于校准标准时，从发射区域反射的信号的幅度和相位的测量可以允许天线的校准，例如， 通过基于测量值和校准标准的已知或参考值生成映射函数。 还公开了一种组织处理设备，其具有用于将微波辐射传送到高功率水平的手术天线的消融通道和用于以低功率水平将微波辐射传送到手术天线的单独的测量通道，其中测量通道绕过噪声分量 消融通道。 具有阻抗变换器的手术天线， 还公开了一种终止于一个或多个辐射元件与待处理组织的同轴馈送结构。
-
2.发明申请APPARATUS FOR TREATING TISSUE WITH MICROWAVE RADIATION AND ANTENNA CALIBRATION SYSTEM AND METHOD 失效用微波辐射和天线校准系统和方法处理组织的装置公开(公告)号：US20100121318A1
公开(公告)日：2010-05-13
申请号：US12311553
申请日：2007-10-10
CPC分类号： A61B18/1815 , A61B5/0507 , A61B5/053 , A61B18/18 , A61B2017/00725 , A61B2018/00755 , A61B2018/00785 , A61B2018/00875 , A61B2018/1876 , A61N5/02
摘要： A calibration method and apparatus for surgical antennas which are arranged to deliver microwave radiation (e.g. having a treatment frequency of 500 MHz to 100 GHz) into biological tissue is disclosed. An emitting region of the antenna is exposed to a plurality of calibration standards each having a different complex impedance at the treatment frequency. In one embodiment the calibration standards are created in a short-circuit-terminated waveguide cavity of variable length. In another embodiment, each calibration standard is a different mixture of two or more liquids. Measurement of the magnitude and phase of signals reflected from the emitting region when exposed to the calibration standard can permit calibration of the antenna, e.g. by generating a mapping function based on the measured values and known or reference values for the calibration standards. Also disclosed is tissue treatment apparatus having an ablation channel for conveying microwave radiation to a surgical antenna at a high power level and a separate measurement channel for conveying microwave radiation to a surgical antenna at a low power level, wherein the measurement channel bypasses noisy components on the ablation channel. A surgical antenna having an impedance transformer for matching an e.g. coaxial feed structure which terminates in one or more radiating elements with tissue to be treated is also disclosed.
摘要翻译： 公开了一种用于外科天线的校准方法和装置，其被布置为将微波辐射（例如具有500MHz至100GHz的治疗频率）递送到生物组织中。 天线的发射区域暴露于在处理频率处具有不同复阻抗的多个校准标准。 在一个实施例中，在可变长度的短路端接的波导腔中产生校准标准。 在另一个实施方案中，每个校准标准品是两种或更多种液体的不同混合物。 当暴露于校准标准时，从发射区域反射的信号的幅度和相位的测量可以允许天线的校准，例如， 通过基于测量值和校准标准的已知或参考值生成映射函数。 还公开了一种组织处理设备，其具有用于将微波辐射传送到高功率水平的手术天线的消融通道和用于以低功率水平将微波辐射传送到手术天线的单独的测量通道，其中测量通道绕过噪声分量 消融通道。 具有阻抗变换器的手术天线， 还公开了一种终止于一个或多个辐射元件与待处理组织的同轴馈送结构。
-
公开(公告)号：US20100168730A1
公开(公告)日：2010-07-01
申请号：US12530046
申请日：2008-03-06
CPC分类号： A61B18/18 , A61B5/05 , A61B5/0507 , A61B5/7264 , A61B18/1815
摘要： Tissue classifying apparatus in which forward microwave radiation (e.g. having a frequency 500 MHz to 60 GHz) is supplied from a source (108) along a first transmission path to a probe (116) which delivers it into tissue to be classified. The probe (116) receives reflected radiation from the tissue. The reflected radiation is delivered to a detector (178) along a second transmission path via a circulator (198) which isolates the forward radiation from the second transmission path. The detector has a input which is switchable between the reflected radiation from the second transmission path and a reference signal derived from the forward radiation, wherein detected magnitude and phase information of the reflected radiation to classify the tissue can be compensated for drift in magnitude and phase of the forward radiation by comparison with detected magnitude and phase information of the reference signal.
摘要翻译： 其中将前向微波辐射（例如具有500MHz至60GHz的频率）从源（108）沿着第一传输路径提供给探测器（116）的组织分类设备将探测器（116）输送到要分类的组织中。 探针（116）接收来自组织的反射辐射。 被反射的辐射经由循环器（198）沿着第二传输路径输送到检测器（178），循环器将前向辐射与第二传输路径隔离。 检测器具有可在来自第二传输路径的反射辐射和从正向辐射导出的参考信号之间切换的输入，其中检测到的用于分类组织的反射辐射的幅度和相位信息可被补偿在幅度和相位上的漂移 与参考信号的检测到的幅度和相位信息进行比较。
-
4.发明授权Apparatus and method for detecting a discontinuity within a non-biological element located within a biological structure 有权用于检测位于生物结构内的非生物元件内的不连续性的装置和方法公开(公告)号：US08049516B2
公开(公告)日：2011-11-01
申请号：US12278112
申请日：2007-02-05
IPC分类号： G01R27/04
CPC分类号： A61B5/05 , A61B5/0507 , A61B5/417
摘要： Apparatus for detecting a discontinuity within a non-biological element located within a biological structure, the apparatus comprising: a microwave energy source; a first antenna coupled to the microwave energy source and arranged to transmit the microwave energy into the biological structure; a second antenna arranged to receive at least a portion of the transmitted microwave energy; an antenna carrier arranged to have the first and second antenna affixed thereon and including means for moving the first and second antenna with respect to the biological structure; and a signal processing unit coupled to the second antenna arranged to determine the phase and/or magnitude response of the received microwave energy as a function of the position of the antennas with respect to the biological structure and provide an indication of the location of the discontinuity within the non-biological element according to the phase and/or magnitude response.
摘要翻译： 用于检测位于生物结构内的非生物元件内的不连续性的装置，所述装置包括：微波能量源; 耦合到所述微波能量源并被布置成将所述微波能量传输到所述生物结构中的第一天线; 布置成接收所传输的微波能量的至少一部分的第二天线; 天线载体布置成将第一和第二天线固定在其上并且包括用于相对于生物结构移动第一和第二天线的装置; 以及耦合到所述第二天线的信号处理单元，所述信号处理单元被布置成根据所述天线相对于所述生物结构的位置来确定所接收的微波能量的相位和/或幅度响应，并且提供所述不连续性的位置的指示 根据相位和/或幅度响应在非生物元件内。
-
5.发明申请APPARATUS AND METHOD FOR DETECTING A DISCONTINUITY WITHIN A NON-BIOLOGICAL ELEMENT LOCATED WITHIN A BIOLOGICAL STRUCTURE 有权用于检测位于生物结构中的非生物元素之间的不连续性的装置和方法公开(公告)号：US20090322349A1
公开(公告)日：2009-12-31
申请号：US12278112
申请日：2007-02-05
CPC分类号： A61B5/05 , A61B5/0507 , A61B5/417
摘要： Apparatus for detecting a discontinuity within a non-biological element located within a biological structure, the apparatus comprising: a microwave energy source; a first antenna coupled to the microwave energy source and arranged to transmit the microwave energy into the biological structure; a second antenna arranged to receive at least a portion of the transmitted microwave energy; an antenna carrier arranged to have the first and second antenna affixed thereon and including means for moving the first and second antenna with respect to the biological structure; and a signal processing unit coupled to the second antenna arranged to determine the phase and/or magnitude response of the received microwave energy as a function of the position of the antennas with respect to the biological structure and provide an indication of the location of the discontinuity within the non-biological element according to the phase and/or magnitude response.
摘要翻译： 用于检测位于生物结构内的非生物元件内的不连续性的装置，所述装置包括：微波能量源; 耦合到所述微波能量源并被布置成将所述微波能量传输到所述生物结构中的第一天线; 布置成接收所传输的微波能量的至少一部分的第二天线; 天线载体布置成将第一和第二天线固定在其上并且包括用于相对于生物结构移动第一和第二天线的装置; 以及耦合到所述第二天线的信号处理单元，所述信号处理单元被布置成根据所述天线相对于所述生物结构的位置确定所接收的微波能量的相位和/或幅度响应，并提供所述不连续性的位置的指示 根据相位和/或幅度响应在非生物元件内。
-
公开(公告)号：US09636176B2
公开(公告)日：2017-05-02
申请号：US13997915
申请日：2012-01-09
CPC分类号： A61B18/1815 , A61B2018/00202 , A61B2018/00571 , A61B2018/1876 , A61B2018/1892 , H01Q1/36 , H01Q13/08 , H01Q21/06
摘要： An electrosurgical instrument for delivering radiofrequency (RF) electromagnetic (EM) energy and microwave frequency EM energy from a coaxial feed cable through an instrument tip into tissue. The instrument tip comprises a dielectric body separating first and second conductive elements, which act as active and return electrodes to convey the RF EM radiation by conduction, and as an antenna to radiate the microwave EM radiation. The instrument also has a fluid feed incorporated into its tip, e.g. in an additional dielectric element mounted on the underside of the tip, for delivering fluid. The delivered fluid may be a gas plasma to assist treatment or a liquid to plump up a tissue region before treatment. The instrument may fit in an endoscope.
-
7.发明申请公开(公告)号：US20130289557A1
公开(公告)日：2013-10-31
申请号：US13997915
申请日：2012-01-09
IPC分类号： A61B18/18
CPC分类号： A61B18/1815 , A61B2018/00202 , A61B2018/00571 , A61B2018/1876 , A61B2018/1892 , H01Q1/36 , H01Q13/08 , H01Q21/06
摘要： An electrosurgical instrument for delivering radiofrequency (RF) electromagnetic (EM) energy and microwave frequency EM energy from a coaxial feed cable through an instrument tip into tissue. The instrument tip comprises a dielectric body separating first and second conductive elements, which act as active and return electrodes to convey the RF EM radiation by conduction, and as an antenna to radiate the microwave EM radiation. The instrument also has a fluid feed incorporated into its tip, e.g. in an additional dielectric element mounted on the underside of the tip, for delivering fluid. The delivered fluid may be a gas plasma to assist treatment or a liquid to plump up a tissue region before treatment. The instrument may fit in an endoscope.
摘要翻译： 一种用于将射频（RF）电磁（EM）能量和微波频率EM能量从同轴馈电电缆通过仪器尖端传送到组织中的电外科仪器。 器械尖端包括分离第一和第二导电元件的电介质体，其作为有源和返回电极，以通过导电传送RF EM辐射，以及用作辐射微波EM辐射的天线。 仪器还具有并入其尖端的流体进料，例如 在安装在尖端下侧的附加电介质元件中，用于输送流体。 输送的流体可以是气体等离子体，以在处理之前帮助治疗或液体丰满组织区域。 仪器可以装在内窥镜中。
-
公开(公告)号：US08574227B2
公开(公告)日：2013-11-05
申请号：US12523208
申请日：2007-10-09
IPC分类号： A61B18/18
CPC分类号： A61B18/18 , A61B18/1815
摘要： A surgical antenna for radiating microwave energy (e.g. frequency 500 MHz to 60 GHz) from a e.g. ceramic insertion tip (60) into biological tissue is disclosed. The tip is provided at the end of an elongate body which delivers the microwave energy to the tip via an inner conductor (30), an outer conductor (20) surrounding the inner conductor and a dielectric material (50) therebetween. The impedance of the insertion tip (60) is selected to improve impedance matching with the complex conjugate of the complex impedance of the tissue at a treatment frequency. For example the insertion tip may act as or include at least one quarter wavelength impedance transformer. By closely matching the antenna's impedance to the tissue, dynamic tuning (if used) can be performed much more efficiently. Impedance matching at the tip can also focus the radiated energy distribution.
摘要翻译： 用于从例如太阳能电池辐射微波能量（例如频率500MHz至60GHz）的外科天线。 公开了陶瓷插入尖端（60）进入生物组织。 尖端设置在细长体的端部，其通过内部导体（30），围绕内部导体的外部导体（20）和介于其间的介电材料（50）将微波能传递到尖端。 选择插入尖端（60）的阻抗以改善与处理频率下组织的复阻抗的复共轭的阻抗匹配。 例如，插入尖端可以充当或包括至少四分之一波长阻抗变压器。 通过将天线的阻抗与组织紧密匹配，可以更有效地执行动态调谐（如果使用）。 尖端的阻抗匹配也可以集中辐射能量分布。
-
公开(公告)号：US20100168727A1
公开(公告)日：2010-07-01
申请号：US12311550
申请日：2007-10-10
IPC分类号： A61B18/18
CPC分类号： A61B18/18 , A61B18/1815 , A61B2018/1807
摘要： A probe and associated apparatus for treating oesophageal tissue with microwave radiation (e.g. radiation having a frequency of 5-60 GHz) are disclosed. The probe comprises a flexible substrate that expands and retracts between an access configuration, e.g. suitable for insertion through an endoscope, and a treatment configuration in which radiating elements, e.g. conducting patches, monopole antennas, slots in a conducting strip or the like, are brought into close proximity with tissue to be treated. The radiating elements are arranged to emit a substantially uniform electromagnetic field with a suitable penetration depth into the tissue. The apparatus can monitor and control the power delivered from the probe into tissue. A method of hollow tube, e.g. oesophageal, pathological treatment and a device for opening and closing the probe are also disclosed.
摘要翻译： 公开了一种用于用微波辐射（例如频率为5-60GHz的辐射）治疗食管组织的探针和相关装置。 探针包括柔性基底，其在接近构造之间膨胀和缩回，例如， 适用于通过内窥镜的插入，以及处理结构，其中辐射元件例如 导电贴片，单极天线，导电条带中的狭槽等与被处理组织紧密接近。 辐射元件布置成发射具有适当穿透深度进入组织的基本均匀的电磁场。 该装置可以监测和控制从探针传递到组织中的功率。 中空管的方法，例如 还公开了食管，病理治疗和用于打开和关闭探针的装置。
-
10.发明申请Tissue Detection and Ablation Apparatus and Apparatus and Method For Actuating a Tuner 有权组织检测和消融装置及其调谐器的设备及方法公开(公告)号：US20080234574A1
公开(公告)日：2008-09-25
申请号：US11569622
申请日：2005-05-26
CPC分类号： A61B18/18 , A61B5/0507 , A61B5/7264 , A61B18/1815 , A61B2018/00577 , A61B2018/00642 , A61B2018/00702 , A61B2018/00755 , A61B2018/00785
摘要： The present invention relates to an apparatus for classifying and/or ablating tissue. By directing microwave radiation through a probe (5) into tissue (6) and detecting the amplitude and phase of radiation reflected back through the probe and a reference signal, the tissue type can be classified. An impedance tuner which is actuated by magnetostrictive material (800) is also disclosed.
摘要翻译： 本发明涉及一种用于分类和/或消融组织的装置。 通过将微波辐射通过探针（5）引导到组织（6）中并检测通过探针反射的辐射的幅度和相位以及参考信号，可以对组织类型进行分类。 还公开了由磁致伸缩材料（800）致动的阻抗调谐器。
-
-
-
-
-
-
-
-
-
搜索结果
33 条记录 (耗时 0.042 秒)
