公开(公告)号：US08653828B2

公开(公告)日：2014-02-18

申请号：US12311553

申请日：2007-10-10

申请人： Christopher Paul Hancock ,  Malcolm White ,  John Bishop ,  Martin Wynford Booton

发明人： Christopher Paul Hancock ,  Malcolm White ,  John Bishop ,  Martin Wynford Booton

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。

公开(公告)号：US20100121318A1

公开(公告)日：2010-05-13

申请号：US12311553

申请日：2007-10-10

申请人： Christopher Paul Hancock ,  Malcolm White ,  John Bishop ,  Martin Wynford Booton

发明人： Christopher Paul Hancock ,  Malcolm White ,  John Bishop ,  Martin Wynford Booton

IPC分类号： A61B18/18 ,  G01S7/40

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：US08574227B2

公开(公告)日：2013-11-05

申请号：US12523208

申请日：2007-10-09

申请人： Christopher Paul Hancock ,  Malcolm White

发明人： Christopher Paul Hancock ,  Malcolm White

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

申请人： Christopher Paul Hancock ,  Malcolm White ,  Peter Wall

发明人： Christopher Paul Hancock ,  Malcolm White ,  Peter Wall

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。

公开(公告)号：US4158460A

公开(公告)日：1979-06-19

申请号：US831261

申请日：1977-09-07

申请人： Malcolm White

发明人： Malcolm White

IPC分类号： B60R21/11 ,  B60R21/13 ,  B62D25/08 ,  G06F7/64 ,  B62D25/06

CPC分类号： B60R21/131 ,  Y10T403/12 ,  Y10T403/4691

摘要： A rollbar safety frame for an agricultural or industrial tractor comprises two uprights joined at their upper ends by a cross-member, and is adjustable so that it may fit different types of tractor. The frame is adjustable at its upper end, its lower end, or both. For adjustment at the upper end, the cross member is securable between the uprights such that the distance therebetween is adjustable. For adjustment at the lower end, each upright carries a securing plate provided with means for adjusting the relative positions of securing bolts transversely of an axle about which the uprights are secured. The safety frame may, if desired, be hinged at a central portion such that, when secured to a tractor, it may be folded.

摘要翻译： 用于农业或工业拖拉机的滚动条安全框架包括两个立柱，其上端通过横向构件连接，并且是可调节的，使得其可以适合不同类型的拖拉机。 框架在其上端，下端或两者均可调节。 为了在上端进行调节，横向构件在立柱之间是可固定的，使得它们之间的距离是可调节的。 为了在下端进行调节，每个立柱都带有一个固定板，该固定板具有用于调节横梁上的固定螺栓的相对位置的装置，立柱固定在该轴上。 如果需要，安全框架可以在中心部分处铰接，使得当固定到拖拉机时，其可以被折叠。

公开(公告)号：US20100228244A1

公开(公告)日：2010-09-09

申请号：US12523208

申请日：2007-10-09

申请人： Christopher P. Hancock ,  Malcolm White

发明人： Christopher P. Hancock ,  Malcolm White

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：USD252462S

公开(公告)日：1979-07-24

申请号：US831337

申请日：1977-11-04

申请人： Malcolm White

设计人： Malcolm White