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公开(公告)号：US5293874A
公开(公告)日：1994-03-15
申请号：US829451
申请日：1992-01-30
IPC分类号： A61B5/02 , A61B5/0285
CPC分类号： A61B5/0285
摘要： A device for measuring a transmission velocity of a pulse wave includes sensors for sensing heart sounds, and pulse wave signals at upstream and downstream sides of a blood flow. Analog to digital conversion circuitry, coupled to the sensors, converts signals from the sensors from analog to digital form. A data processor, coupled to the analog to digital conversion circuitry processes data received from the analog to digital conversion circuitry. A display device, coupled to the data processor, displays waveforms and numerical data received from the data processor. The data processor includes seven processing units. A first processing unit, coupled to the analog to digital conversion circuitry, detects a first heart sound and generates a marker signal. Second and third processing units, coupled to the analog to digital conversion circuitry, transform digital signals received from the analog to digital conversion circuitry into data for display. A fourth processing unit, coupled to the first, second, and third processing units, detects the marker signal from the first processing unit and obtains predetermined data from the data received from the second and third processing units. A fifth processing unit, coupled to the second and third processing units, temporarily stores data received from the second and third processing units. A sixth processing unit, coupled to the fourth processing unit, determines a transmission time of a pulse wave to derive a transmission velocity of the pulse wave. A seventh processing unit, coupled to the sixth processing unit, transforms signals from the sixth processing unit for display.
摘要翻译： 用于测量脉搏波的传播速度的装置包括用于感测心脏声音的传感器和在血流的上游和下游侧的脉搏波信号。 耦合到传感器的模数转换电路将来自传感器的信号从模拟转换成数字形式。 耦合到模数转换电路的数据处理器处理从模数转换电路接收的数据。 耦合到数据处理器的显示装置显示从数据处理器接收的波形和数值数据。 数据处理器包括七个处理单元。 耦合到模数转换电路的第一处理单元检测第一心音并产生标记信号。 耦合到模数转换电路的第二和第三处理单元将从模数转换电路接收的数字信号转换成数据进行显示。 耦合到第一，第二和第三处理单元的第四处理单元检测来自第一处理单元的标记信号，并从从第二处理单元和第三处理单元接收的数据中获取预定数据。 耦合到第二和第三处理单元的第五处理单元暂时存储从第二处理单元和第三处理单元接收的数据。 耦合到第四处理单元的第六处理单元确定脉波的传输时间以导出脉波的传输速度。 耦合到第六处理单元的第七处理单元转换来自第六处理单元的信号以进行显示。
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2.发明授权
公开(公告)号：US5379774A
公开(公告)日：1995-01-10
申请号：US218022
申请日：1994-03-25
CPC分类号： A61B5/6826 , A61B5/02007 , A61B5/02422 , A61B5/6838
摘要： An apparatus for measuring arterial elasticity includes a cuff member having a light source and light detector, a variable pressure generating device, a fluid pressure sensor, a digital signal processor and a difference detecting element. The fluid pressure in a fluid pressure chamber in the cuff member is varied by a variable fluid pressure generating device. The digital signal processor responds to the output of the fluid pressure sensor and the output of the difference detecting element and delivers a digitally processed signal corresponding to an arterial volume change based on a simulated arterial elasticity. The arterial elasticity and the frequency characteristic thereof are derived based on the operation of the digital signal processor.
摘要翻译： 用于测量动脉弹性的装置包括具有光源和光检测器的袖带件，可变压力产生装置，流体压力传感器，数字信号处理器和差异检测元件。 袖带构件中的流体压力室中的流体压力由可变流体压力产生装置改变。 数字信号处理器响应流体压力传感器的输出和差异检测元件的输出，并且基于模拟的动脉弹性递送对应于动脉体积变化的数字处理的信号。 基于数字信号处理器的操作导出动脉弹性及其频率特性。
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3.发明授权
公开(公告)号：US5949080A
公开(公告)日：1999-09-07
申请号：US895921
申请日：1997-07-17
申请人： Hisaki Ueda , Masatoshi Nishimura
发明人： Hisaki Ueda , Masatoshi Nishimura
CPC分类号： A61N5/1048 , G21K5/02 , A61N5/1064
摘要： An irradiation apparatus for treating a treated body by irradiating an electron beam of high energy or the like on the foci of the treated body includes, in order to efficiently and stably performing intermittent irradiation in synchronism with respiration, a respiration synchronizing circuit for detecting a respiration state of a treated body, outputting an irradiation permission signal in synchronism with a rest period of foci which are moved by a respiration motion and outputting an irradiation prohibition signal during other periods and a beam passage change control circuit for deflecting the electron beam or the like from a correct therapy passage, causing the electron beam or the like to impinge upon a predetermined beam stopper portion during a period in which the irradiation prohibition signal is outputted from the respiration synchronizing circuit and returning the electron beam or the like to the correct therapy passage during the period in which the irradiation permission signal is outputted from the respiration synchronizing circuit.
摘要翻译： 一种用于通过在处理体的焦点上照射高能量等的电子束来处理被处理体的照射装置，其特征在于，为了与呼吸同步地高效稳定地进行间歇照射，所述呼吸同步电路用于检测呼吸 处理体的状态，与通过呼吸运动而移动的停止的焦点周期同步地输出照射许可信号，并且在其他期间输出照射禁止信号，以及用于偏转电子束等的光束通过改变控制电路 来自正确的治疗通道，在从呼吸同步电路输出照射禁止信号并将电子束等返回到正确的治疗通道的期间，使电子束等撞击预定的束止动部 在照射许可期间 呼吸从呼吸同步电路输出。
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公开(公告)号：US5561697A
公开(公告)日：1996-10-01
申请号：US372124
申请日：1995-01-13
申请人： Atsuko Takafuji , Katsuya Sugiyama , Katsuhiro Kuroda , Keiji Koyanagi , Ichiro Miura , Masatoshi Nishimura
发明人： Atsuko Takafuji , Katsuya Sugiyama , Katsuhiro Kuroda , Keiji Koyanagi , Ichiro Miura , Masatoshi Nishimura
CPC分类号： H05H13/10
摘要： Disclosed is a microtron electron accelerator having an accelerating cavity accepting microwave electric power for generating a high-frequency accelerating electric field E disposed within a uniform magnetic field B and adapted such that electrons are accelerated and caused to move in a circular trajectory under action of the magnetic field B and the electric field E, comprising an electron source formed of a cathode and an anode, which has a minute slit allowing an electron beam extracted from the cathode to pass therethrough, disposed on the outer side of the wall of the accelerating cavity, a first electron beam through-hole and a second electron beam through-hole formed in the wall of the accelerating cavity in two positions, with the electron source therebetween, along the decreasing or increasing direction of the strength of the electric field E in the accelerating cavity, and a third electron beam through-hole formed in the wall of the accelerating cavity in a position in confrontation with the first electron beam through-hole across the inner space of the accelerating cavity. By adopting the above described structure, it has been made possible to have the energy gain within the accelerating cavity at each time of acceleration increased and to have contamination of the inner surface of the accelerating cavity by evaporated cathode material decreased, and as a result, it is made possible to obtain a microtron electron accelerator smaller in size and capable of stably providing a high-energy electron beam.
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公开(公告)号：US5399873A
公开(公告)日：1995-03-21
申请号：US165919
申请日：1993-12-14
申请人： Atsuko Takafuji , Katsuya Sugiyama , Katsuhiro Kuroda , Keiji Koyanagi , Ichiro Miura , Masatoshi Nishimura
发明人： Atsuko Takafuji , Katsuya Sugiyama , Katsuhiro Kuroda , Keiji Koyanagi , Ichiro Miura , Masatoshi Nishimura
CPC分类号： H05H13/10
摘要： Disclosed is a microtron electron accelerator having an accelerating cavity accepting microwave electric power for generating a high-frequency accelerating electric field E disposed within a uniform magnetic field B and adapted such that electrons are accelerated and caused to move in a circular trajectory under action of the magnetic field B and the electric field E, comprising an electron source formed of a cathode and an anode, which has a minute slit allowing an electron beam extracted from the cathode to pass therethrough, disposed on the outer side of the wall of the accelerating cavity, a first electron beam through-hole and a second electron beam through-hole formed in the wall of the accelerating cavity in two positions, with the electron source therebetween, along the decreasing or increasing direction of the strength of the electric field E in the accelerating cavity, and a third electron beam through-hole formed in the wall of the accelerating cavity in a position in confrontation with the first electron beam through-hole across the inner space of the accelerating cavity. By adopting the above described structure, it has been made possible to have the energy gain within the accelerating cavity at each time of acceleration increased and to have contamination of the inner surface of the accelerating cavity by evaporated cathode material decreased, and as a result, it is made possible to obtain a microtron electron accelerator smaller in size and capable of stably providing a high-energy electron beam.
摘要翻译： 公开了一种微电子电子加速器，其具有接受微波功率的加速腔，用于产生设置在均匀磁场B内的高频加速电场E，并适于使电子加速并使其在圆周轨迹中移动， 磁场B和电场E，包括由阴极和阳极形成的电子源，其具有允许从阴极抽出的电子束通过的微小狭缝，其设置在加速腔的壁的外侧 形成在加速腔的壁中的两个位置的第一电子束通孔和第二电子束通孔，其中电子源沿着电场E的强度的减小或增加的方向 加速腔和形成在加速腔的壁中的第三电子束通孔 第一个电子束通孔穿过加速腔的内部空间。 通过采用上述结构，可以在每个加速时间内使加速腔内的能量增益增加，并且通过蒸发的正极材料使加速腔内表面的污染减小，结果， 可以获得尺寸较小并能够稳定地提供高能电子束的微电子电子加速器。
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公开(公告)号：US5267294A
公开(公告)日：1993-11-30
申请号：US872046
申请日：1992-04-22
IPC分类号： A61N5/10
CPC分类号： A61N5/1084
摘要： In order to construct a radiotherapy apparatus which can irradiate a point in the body of a patient in an optional direction with high accuracy, an accelerated electron beam is controlled electrically by using deflectors so as to irradiate a plurality of radioactive ray generating positions, a collimator is provided so that a radioactive ray generated from the positions can irradiate one point of a portion of the patient's body to be treated, and a gantry can be rotated mechanically.
摘要翻译： 为了构建能够以高精度沿任意方向照射患者体内的点的放射治疗装置，通过使用偏转器电子地控制加速电子束，以照射多个放射线产生位置，准直仪 被设置为使得从该位置产生的放射线能够照射待治疗的患者身体的一部分的一点，并且机架可以旋转。
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