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公开(公告)号：EP0109517A3
公开(公告)日：1985-11-13
申请号：EP83109707
申请日：1983-09-28
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Takase, Hidetomo
CPC classification number: G01R33/482
Abstract: In an NMR diagnostic apparatus, it is desirable to obtain a scanogram of an imaginarily cross-sectionally sliced portion (S) of a patient (P), which has a high spatial resolution. The specific nucleus of the patient (P) is first excited by receiving the 90° pulse (H 1 ) under the influence of the first linear gradient field (G z ). The spin of the excited sliced portion (S) of the patient (P) is secondly warped by the linear gradient field (G z ), the field strength of which is determined by the given equation (3). Under the influence of the warping linear gradient field (G z ), another linear gradient field (G x y) is superimposed thereto. Finally NMR signals are derived from the excited sliced portion (S) and thus are processed by Fourier transformation so as to obtain the scannogram.
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公开(公告)号：EP0114405A3
公开(公告)日：1985-05-29
申请号：EP83113150
申请日：1983-12-27
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Sugiura, Satoshi
CPC classification number: G01R33/3678 , A61B5/055 , G01R33/3628
Abstract: In an NMR diagnostic apparatus, it is generally necessary to tune a receiver tuning unit with respect to a patient. The NMR diagnostic apparatus (200; 300) is comprised of a standard signal generator (4) for generating a CW signal, a receiver tuning unit (5) which is mainly constructed by a receiver probe head (2) and a series circuit of a capacitor (52) and a variable capacitance diode (51) and receives the NMR signals induced from the CW signal, quadrature detectors (7A, 7B) which detect the NMR signals, and a signal processor (13) which processes the detected NMR signals so as to produce the control voltages "Vc". The automatic tuning operation is carried out in such a manner that varying the control voltage "Vc" which is applied to the variable capacitance diode (51) enable the receiver tuning unit (5) to be tuned with respect to the object that is positioned in the receiver probe head (2).
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公开(公告)号：EP0094113A3
公开(公告)日：1985-05-22
申请号：EP83200598
申请日：1983-04-26
Applicant: THE UNIVERSITY OF SHEFFIELD
Inventor： Brown, Brian Hilton , Barber, David Charles , Freeston, Ian Leslie
IPC: A61B05/05
CPC classification number: A61B5/0536
Abstract: Tomographic images (1 1 and 1 2 ) of a body are constructed by placing a plurality of surface electrodes (1 to 16) at spaced intervals on the body (M), causing currents to flow in the body, and measuring the potential between pairs of electrodes, calculating the potential in each case on the assumption that the body consists of one uniform medium, plotting the isopotentials corresponding to the calculated results to create a uniform image of the body, obtaining the ratio between the measured potential and the calculated potential in each case, and modifying the image in accordance with the respective ratios by increasing the impedance along an isopotential in proportion to a ratio greater than unity or decreasing the impedance in proportion to a ratio less than unity. The calculations of potentials and the obtaining of ratios are carried out using a computer and the plotting of the isopotentials is carried out by a visual display unit (VDU) and/or a print-out unit run off the computer.
Abstract translation: 通过在身体（M）上以间隔开的间隔放置多个表面电极（1至16），使电流在体内流动并测量电极对之间的电位来构造身体的断层图像（I1和I2） 在每种情况下，假定身体由一个均匀的介质组成，绘制与计算结果相对应的等效电位以产生身体的均匀图像，从而获得每种情况下的电位，获得测量电位与每种情况下的计算电位之间的比率 并且通过按比例大于单位的比例增加沿着等电位的阻抗或按比例小于1的比例减小阻抗，根据各自的比例来修改图像。 使用计算机进行电位计算和比率获取，并且通过视觉显示单元（VDU）和/或从计算机运行的打印输出单元执行等级图的绘制。
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公开(公告)号：EP0182266A3
公开(公告)日：1988-06-01
申请号：EP85114392
申请日：1985-11-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Charles, Hal Cecil , Glover, Gary Harold
CPC classification number: G01R33/5676 , A61B5/0816 , A61B5/7207 , A61B5/7242 , A61B5/7257
Abstract: A method for eliminating or reducing breathing artifacts due to motion-induced phase errors in the phase-encoding dimension when using Fourier transform imaging methods, such as spin warp, utilizes a repetition time (TR) which is an odd multiple of one quarter of the breathing cycle. In the preferred embodiment, the breathing cycle is determined by monitoring the integrated spin-echo signal magnitude spectrum as a function of time.
Abstract translation: 当使用傅立叶变换成像方法（例如自旋扭曲）时，消除或减少由相位编码维度中的运动引起的相位误差引起的呼吸赝象的方法利用了重复时间（TR），其是四分之一的奇数倍 呼吸循环。 在优选实施例中，呼吸周期通过监测作为时间的函数的积分自旋回波信号幅度谱来确定。
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公开(公告)号：EP0158336A3
公开(公告)日：1987-08-19
申请号：EP85104335
申请日：1985-04-10
Applicant: Woodley, William E. , Longmire, David R.
Inventor： Woodley, William E.
IPC: A61B05/05
CPC classification number: A61B5/4824 , A61B5/0531 , A61B5/411 , A61B5/7415
Abstract: A selective tissue conductance meter is described which can be used to assess pain, abnormal sensation or sympathetic dysfunction in a human being or animal. Two concentric electrodes are mounted in fixed relative relationship on a housing which is capable of being held in one hand of the user. Contained in the housing is an electric circuit connected to the two electrodes, which circuit produces an electrical signal having a pulse frequency that varies according to the measured conductance. A battery capable of providing low voltage power is connected to the circuit. Several devices are disclosed for monitoring or measuring the electrical signal to permit the user to detect the pulse frequency of the signal. One such device comprises an audio circuit capable of producing an audible sound or click for each pulse of the electrical signal. A liquid crystal display can provide a digital readout of the number of pulses covered over a short time span.
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Patent Agency Ranking
公开(公告)号：EP0156238A3
公开(公告)日：1986-10-08
申请号：EP85102817
申请日：1985-03-12
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Laskaris, Evangelos Trifon
CPC classification number: F17C3/085 , F17C2203/0687 , F17C2221/017 , F17C2270/0536 , Y10S220/901
Abstract: An insert for a horizontal cryostat penetration includes a plurality of foam particles or spheres between which are disposed disks of high thermal conductivity. The spheres or particles are disposed in an annular'volume defined by two concentric,thin-wall, low thermal conductivity conduits. This foam filled insert provides thermal insulation and significantly reduces the formation of coolant vapor convection currents in the penetration which would otherwise significantly increase the rate of coolant evaporation from the cryostat. The insert is constructed so that the foam particles are ejected from the penetration upon the buildup of excessive internal pressure. The insert has also preferably one or more string-like lengths of sealing material disposed in a helical pattern about the outer one of the concentric conduits. Accordingly, when this insert is placed within a third conduit, a helical coolant vapor path is formed for insert cooling and exterior ventilation.
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公开(公告)号：EP0160552A3
公开(公告)日：1986-08-20
申请号：EP85302995
申请日：1985-04-26
Applicant: VESTAR RESEARCH INC.
Inventor： Gamble, Ronald Carl , Schmidt, Paul Gardner
CPC classification number: G01R33/5601 , A61K49/1812
Abstract: An agent for contrast enhancement in nuclear magnetic resonance imaging comprises micellular particles such as phospholipid vesicles associated with or enclosing a paramagnetic material. The particles may be formulated with an agent, such as cholesterol, to promote vesicle stability and water exchange across the vesicle bilayer. The vesicles may or may not have antibodies or other cell recognition targeting agents attached to the surface to provide specific targeting. The vesicles provide enhanced target specificity, reduced burden of toxic contrast material and amplified contrast enhancement.
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公开(公告)号：EP0030722A3
公开(公告)日：1982-04-07
申请号：EP80107858
申请日：1980-12-12
Applicant: Dankwart, Franz-Josef, Dipl.-Phys. , Freitag, Lutz
Inventor： Dankwart, Franz-Josef, Dipl.-Phys.
CPC classification number: A61B5/0535 , A61B5/7239 , G01R27/02
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公开(公告)号：EP0026479A3
公开(公告)日：1982-04-07
申请号：EP80105829
申请日：1980-09-25
Applicant: Siemens Aktiengesellschaft
Inventor： Weigert, Kurt , Hudek, Karl , Hudek, Amanda , Hudek, Kurt , Hudek, Gerd
CPC classification number: A61N1/36014 , A61N1/08 , Y10S128/908
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20.发明公开Apparatus for monitoring neuromuscular transmission and method of monitoring neuromuscular blockage 失效用于监测神经传递的装置和监测神经阻滞的方法
公开(公告)号：EP0025222A3
公开(公告)日：1981-05-06
申请号：EP80105310
申请日：1980-09-04
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Severinghaus, John W. , Severinghaus, Edwin M.
CPC classification number: A61B5/05 , A61B5/0488 , A61B5/1106 , A61B2505/05
Abstract: To determine the degree of neuromuscular blockage, the apparatus of the invention electrically, supramaximally stimulates the motor nerve of a patient by stimulus means, applies the resulting electromyogram (EMG) produced by the muscle associated with that motor nerve and integrates the amplified EMG with respect to time. The integrated, amplified EMG is then displayed. In a preferred embodiment of the invention means are also provided for displaying the integrated, amplified EMG, taken after a muscle relaxant has been administered to the patient, as a ratio of a control EMG taken with the apparatus before the administration of the drug.
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