-
公开(公告)号：US5081663A
公开(公告)日：1992-01-14
申请号：US586869
申请日：1990-09-24
摘要： An x-ray apparatus including an x-ray source with a primary radiation diaphragm attached thereto has a luminescent foil disposed in the interior of either the x-ray source or the primary radiation diaphragm at a location so that the x-ray beam is incident thereon. Interaction of the luminescent foil with the x-ray beam causes the foil to emit light, which is conducted to an exterior of the apparatus by an optical waveguide. The light is therefore visible at a location at the exterior of the unit, such as in the housing, as a reliable indicator that x-rays are actually being generated.
摘要翻译： 包括附接有主辐射膜的x射线源的X射线设备具有设置在x射线源或主辐射光圈的内部的发光箔，使得X射线束入射 上。 发光箔与X射线束的相互作用使得箔发光，其通过光波导传导到装置的外部。 因此，光可以在单元外部的位置，例如在外壳中，作为实际产生X射线的可靠指示器。
-
公开(公告)号：US4995069A
公开(公告)日：1991-02-19
申请号：US337821
申请日：1989-04-13
申请人： Shigeru Tanaka
发明人： Shigeru Tanaka
IPC分类号： H05G1/54 , A61B6/00 , A61B6/03 , H01J35/00 , H01J35/04 , H02M3/28 , H02M7/10 , H05G1/06 , H05G1/10
摘要： An alternating-current voltage of a commercial power supply is converted to a direct-current voltage by a rectifier and the output direct-current voltage of the rectifier is converted to an alternating-current voltage again by a DC/AC inverter. The alternating-current voltage is boosted by a transformer up to an intermediate voltage (e.g., 1-20 KV). The output voltage of the transformer is supplied through the slip-ring provided between a frame stationary section and a frame rotating section of a voltage multiplier provided within the rotating section to be multiplied to a high voltage (e.g., .+-.60-.+-.70 KV). Outputs of the voltage multiplier are supplied to the anode and cathode of an X-ray tube. A voltage multiplier for producing an anode supply voltage and a voltage multiplier for producing a cathode supply voltage are constructed in separate units. The two voltage multiplier units and the X-ray tube unit are disposed within a housing of the rotating section shaped like a ring at equal angular intervals of 120.degree.. The X-ray tube unit contains a protective resistor. The protective resistor is connected in at least one of positions between the anode of the X-ray tube and an anode voltage supply terminal, between a center metal of the X-ray tube and a center metal terminal and between the cathode of the X-ray tube and a cathode voltage supply terminal.
摘要翻译： 商用电源的交流电压由整流器转换为直流电压，整流器的输出直流电压再次由DC / AC逆变器转换成交流电压。 交流电压由变压器升压至中间电压（例如，1-20KV）。 变压器的输出电压通过设置在旋转部分内的电压倍增器的框架固定部分和框架旋转部分之间的滑环提供，以便与高电压相乘（例如，+/- 60 - + / -70KV）。 电压倍增器的输出被提供给X射线管的阳极和阴极。 用于产生阳极电源电压的电压倍增器和用于产生阴极电源电压的电压倍增器分别构成。 两个电压倍增器单元和X射线管单元设置在旋转部分的壳体内，以120度的相等角度间隔形成为环形。 X射线管单元包含一个保护电阻。 保护电阻器连接在X射线管的阳极和阳极电压端子之间的位置之间，X射线管的中心金属和中心金属端子之间以及X射线管的阴极之间的至少一个位置处， 射线管和阴极电压端子。
-
公开(公告)号：US4974248A
公开(公告)日：1990-11-27
申请号：US183752
申请日：1988-05-02
摘要： X-Ray system for X-ray diagnosis and/or X-Ray treatment with a control console having control keys that serve in particular to retrieve from a program register organ-related programmed reference values for an X-Ray generator and an attached X-Ray machine, with a display device on the control console. The display device is embodied as a multiplace alphanumeric display device, into which the contents of the storage zones of a text storage area can be called as plain language text through actuation of switches and control keys. In particular, organ-related texts, errors, status messages and infrequently recalled operational data, can be retrieved. The display device can furthermore be connected to a test and diagnostic system or to a switch junction matrix, so that test programs for electronic modules, components or new output connections can be selected through interactive communication using the display device.
摘要翻译： PCT No.PCT / DE87 / 00332 Sec。 371日期：1988年5月2日 102（e）日期1988年5月2日PCT提交1987年7月23日PCT公布。 出版物WO88 / 00789 日期1988年1月28日。用于具有控制键的控制控制台进行X射线诊断和/或X射线处理的X射线系统，其具有特别用于从程序寄存器检索器官相关的编程参考值， 射线发生器和附加的X光机，在控制台上显示设备。 显示装置实现为多字母数字显示装置，通过开关和控制键的致动，文本存储区域的存储区域的内容可以被称为简单语言文本。 特别地，可以检索器官相关文本，错误，状态消息和不常调用的操作数据。 此外，显示装置还可以连接到测试和诊断系统或交换机连接矩阵，使得可以通过使用显示设备的交互式通信来选择电子模块，组件或新的输出连接的测试程序。
-
公开(公告)号：US4775993A
公开(公告)日：1988-10-04
申请号：US37791
申请日：1987-04-13
申请人： Karlheinz Kaul , Eckard Seuss
发明人： Karlheinz Kaul , Eckard Seuss
CPC分类号： A61B6/4476 , A61B6/10
摘要： The present invention is directed to an X-ray diagnostics installation having control elements for control of specific components of the installation. In order to prevent inadvertent actuation of the elements, an activation switch must be actuated to cause each of the control elements to be effective for a predetermined time. The length of the predetermined time can be increased by actuation of one of the control elements following the actuation of the activation switch.
摘要翻译： 本发明涉及具有用于控制该装置的特定部件的控制元件的X射线诊断装置。 为了防止元件的无意的致动，必须致动启动开关，以使每个控制元件在预定时间内有效。 在激活开关的致动之后，通过致动一个控制元件可以增加预定时间的长度。
-
45.发明授权
公开(公告)号：US4733408A
公开(公告)日：1988-03-22
申请号：US914234
申请日：1986-10-02
申请人： Georg Beikuefner , Arthur Gall , Adelbert Kupfer
发明人： Georg Beikuefner , Arthur Gall , Adelbert Kupfer
摘要： A switch mechanism for an image intensifier hood in an x-ray diagnostics system is connected to a motor for moving the x-ray image intensifier toward and away from an examination subject. If the hood inadvertently comes into contact with the examination subject or a technician, the hood is displaced thereby actuating the switch mechanism and disengaging the motor to stop movement of the x-ray image intensifier, thereby avoiding injury to the examination subject and technician and avoiding damage to the x-ray image intensifier. The switch mechanism is constructed such that actuation thereof occurs upon the presence of forces acting on the hood in the direction of the luminescent screen surface or a direction perpendicular thereto, and each intermediate direction. The hood is provided with a number of such switch mechanisms, each switch mechanism including a lever having one end for actuating an electronic switch, and an opposite end disposed at an obtuse angle with respect to the other end which presses against a beveled cam on the inside surface of the hood, which displaces the lever upon the occurrence of pressure against the hood. The hood and switch mechanisms are attached to the front of the x-ray image intensifier by a ring, and the lever for each switch mechanism is pivotably mounted for movement around an axis extending parallel to a tangent of this ring.
摘要翻译： 用于x射线诊断系统中的图像增强器罩的切换机构连接到用于使x射线图像增强器朝向和远离检查对象移动的马达。 如果发动机罩无意中与检查对象或技术人员接触，则发动机罩被移位，从而致动开关机构并使电动机脱离以停止X射线图像增强器的运动，从而避免对检查对象和技术人员的伤害并避免 损伤x射线图像增强器。 开关机构被构造成使得当在发光屏表面的方向或垂直于发光屏表面的方向和每个中间方向上存在作用在罩上的力时，启动它们。 罩设置有多个这样的开关机构，每个开关机构包括具有用于致动电子开关的一端的杠杆和相对于另一端以钝角设置的相对端，该另一端压靠在其上的斜面凸轮 在发动机罩的内表面中，当压力发生在罩子上时，该位置使杠杆移位。 罩和开关机构通过环连接到X射线图像增强器的前部，并且用于每个开关机构的杠杆可枢转地安装成围绕平行于该环的切线延伸的轴线移动。
-
公开(公告)号：US4654770A
公开(公告)日：1987-03-31
申请号：US564622
申请日：1983-12-22
摘要： Current limit protection is provided to ensure that the current flow within the transistor inverter does not exceed a predetermined safe level to thereby cause damage to the various components such as the transistor inverters. The current in the primary of the transformer is sensed and a representative signal is compared with a reference signal to provide a digital output indicating whether a safe limit has been exceeded. A logic network then operates on the output signal to shut down or reduce the system operation accordingly. In the event of a shut-down, current decay is accommodated by shutting off only the top transistors in the inverter diagonals so as to thereby allow the remaining current to flow in the bottom transistors and diodes.
摘要翻译： 提供电流限制保护，以确保晶体管逆变器内的电流不超过预定的安全电平，从而对晶体管逆变器等各种部件造成损坏。 感测变压器的初级电流，并将代表信号与参考信号进行比较，以提供指示是否已经超过安全限值的数字输出。 然后，逻辑网络对输出信号进行操作以相应地关闭或减少系统操作。 在关闭的情况下，通过仅关闭逆变器对角线中的顶部晶体管来容纳电流衰减，从而允许剩余电流流入底部晶体管和二极管。
-
公开(公告)号：US4190873A
公开(公告)日：1980-02-26
申请号：US885766
申请日：1978-03-13
申请人： Frits H. Klokkers
发明人： Frits H. Klokkers
CPC分类号： H05G1/54
摘要： A device comprising an electron tube having two electrodes between which a potential difference generated by a high voltage generator exits. A protection circuit is connected between these electrodes to protect the device against excess voltages. The protection circuit consists of a series network of a capacitor having a capacitance which is substantially higher than the parasitic capacitance beween the electrodes and a number of diodes whose forward direction extends from the electrode of highest potential to the electrode of lowest potential.
摘要翻译： 一种包括具有两个电极的电子管的装置，其间由高压发生器产生的电位差离开。 保护电路连接在这些电极之间，以保护器件免受过电压的影响。 保护电路包括电容器的串联网络，该电容器的电容明显高于电极之间的寄生电容，以及从最高电位的电极向正方向延伸到最低电位的电极的多个二极管。
-
公开(公告)号：US4034222A
公开(公告)日：1977-07-05
申请号：US675903
申请日：1976-04-12
CPC分类号： G01T1/29 , A61N5/1048
摘要： A system for measuring radiation doses in radiotherapy comprises two identical metering networks energized in parallel from a common radiation source, each network including an integrating amplifier whose time constant is variable by the short-circuiting of an input resistor. A manually or automatically reversible switch selectively foreshortens the time constant of one or the other amplifier whereby the corresponding metering network controls the cutoff of the radiation source whenever the emitted radiant energy reaches a predetermined value. The other network, acting as a backup, takes over the radiation cutoff upon failure of the controlling network; this takeover may be indicated by a set of signal lamps jointly controlled by the reversing switch and by a counting unit of the standby network.
摘要翻译： 用于测量放射治疗辐射剂量的系统包括从共同辐射源并联激励的两个相同的计量网络，每个网络包括积分放大器，其时间常数可通过输入电阻器的短路而变化。 手动或自动可逆开关选择性地缩短一个或另一个放大器的时间常数，由此当发射的辐射能量达到预定值时，对应的计量网络控制辐射源的截止。 作为备份的另一个网络在控制网络故障时接管辐射截止; 该接管可以由由倒车开关和备用网络的计数单元共同控制的一组信号灯指示。
-
公开(公告)号：US3746862A
公开(公告)日：1973-07-17
申请号：US3746862D
申请日：1970-11-30
申请人： PICKER CORP
发明人： LOMBARDO D , SPLAIN W
CPC分类号： H05G1/54
摘要： A protective circuit and method of operation for interrupting a signal which is applied to an X-ray tube when the signal attains a value which exceeds a maximum rating for the tube. The protective circuit includes a signal generating circuit for developing a limit signal which varies in value with respect to time in accordance with a maximum tube rating signal, a programming circuit for developing a program signal having a value representative of a preselected signal to be applied to the X-ray tube, and a comparator circuit for developing an interrupt signal if the program signal exceeds the value of the limit signal.
摘要翻译： 一种当信号达到超过管的最大额定值的值时，用于中断施加到X射线管的信号的保护电路和操作方法。 保护电路包括信号发生电路，用于根据最大管额定值信号开发相对于时间变化的极限信号的编程电路，编程电路用于开发具有代表要施加到 X射线管和用于在程序信号超过限制信号的值时产生中断信号的比较器电路。
-
公开(公告)号：US2579255A
公开(公告)日：1951-12-18
申请号：US13278749
申请日：1949-12-13
申请人： GEN ELECTRIC
发明人： GRAVES DONALD E
IPC分类号： H05G1/54
CPC分类号： H05G1/54
-
-
-
-
-
-
-
-
-
搜索结果
329 条记录 (耗时 0.02 秒)
