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公开(公告)号：US5768336A
公开(公告)日：1998-06-16
申请号：US728884
申请日：1996-10-11
CPC分类号： A61B6/4476 , A61B6/00 , A61B6/0457 , A61B6/4283 , A61B6/4464 , A61B6/547 , A61B6/588 , H05G1/60 , H05G1/64 , A61B6/467
摘要： A universal radiographic/fluoroscopic "room" is constructed according to the present invention by combining a versatile group of X-ray examination system components, electrical and mechanical drive components, and sensing components, under the supervision of a flexible control system, to form a universal diagnostic medical imaging system capable of performing radiographic, fluoroscopic, tomographic, and stepped examinations in several different operator-selectable configurations. The operator selects any available operating mode, including auto-bucky, auto-wall, auto-table, auto-table/wall, servo-tomo, conventional stepping, stepped-digital, auto-step, and auto-step-center modes, using a a control panel. The control system automatically determines which system components are required to perform that type of examination, moves the components into operational or storage positions as required, and prepares each component for operation. The operator need not manually reconfigure the equipment. In "stepped-digital" modes useful for peripheral angiography, an under-table X-ray tube and over-table image intensifier execute a series of radiographic exposures at preselected locations. The digital imaging platform is moved while the patient remains stationary. This reduces motion artifacts. For each step, a test fluoroscopic exposure is performed under automatic brightness control to determine an optimum technique. The technique so determined is converted for use in a subsequent radiographic exposure. The operator observes the flow of the contrast medium during the test fluoroscopic exposure and commands the radiographic exposure when the contrast medium arrives at the desired position in the image. Alternatively, the control system may detect the presence of the contrast medium in the image by comparing a change in image contrast with a previously observed threshold change.
摘要翻译： 根据本发明，通过在柔性控制系统的监督下组合通用组的X射线检查系统部件，电气和机械驱动部件以及感测部件来构造通用射线照相/透视“房间”，以形成 通用诊断医学成像系统能够在几种不同的操作者可选择的配置中进行射线照相，荧光镜，断层扫描和阶梯式检查。 操作员选择任何可用的操作模式，包括自动平衡，自动墙，自动表，自动桌面/墙壁，伺服断层扫描，常规步进，步进数字，自动步进和自动分步中心模式， 使用控制面板。 控制系统自动确定执行该类型检查需要哪些系统组件，并根据需要将组件移动到操作或存储位置，并准备每个组件进行操作。 操作员无需手动重新配置设备。 在用于外周血管造影的“步进数字”模式中，下表X射线管和超表面图像增强器在预选位置执行一系列放射照相曝光。 数字成像平台在患者保持静止时移动。 这减少了运动伪影。 对于每个步骤，在自动亮度控制下进行测试荧光透视以确定最佳技术。 如此确定的技术被转换用于随后的射线照相曝光。 操作者在测试荧光透视曝光期间观察造影剂的流动，并且当造影剂到达图像中的期望位置时命令放射照相曝光。 或者，控制系统可以通过将图像对比度的变化与先前观察到的阈值变化进行比较来检测图像中的造影剂的存在。
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公开(公告)号：US5164977A
公开(公告)日：1992-11-17
申请号：US665291
申请日：1991-03-05
申请人： Hugo Vlasbloem , Simon Duinker
发明人： Hugo Vlasbloem , Simon Duinker
CPC分类号： A61B6/4476 , A61B6/032 , A61B6/06 , A61B6/4035 , G21K1/04 , H05G1/36 , H05G1/58 , H05G1/60 , H05G1/64
摘要： A slit radiography assembly including an X-ray source, and X-ray detector and a slit diaphragm comprised of a plurality of sections juxtaposed in the longitudinal direction of the slit and coacting with controllable attenuation elements wherein: during scanning, a detection assembly includes a plurality of response sections cooperate with the X-ray detector to provide an electric signal representative of the intensity to control the attenuation elements during scanning at initial measuring exposure and subsequent radiographical exposure of the body.
摘要翻译： 一种狭缝X射线摄影组件，包括X射线源和X射线检测器以及狭缝膜片，其由在狭缝的纵向方向并列并与可控衰减元件并列的多个部分组成，其中：在扫描期间，检测组件包括： 多个响应部分与X射线检测器协作以提供代表强度的电信号，以在初始测量曝光和随后的身体放射照射时的扫描期间控制衰减元件。
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43.发明授权Method for forming a radiogram using slit-scanning radiographic techniques 失效使用狭缝扫描放射线照相技术形成放射线图的方法
公开(公告)号：US4803714A
公开(公告)日：1989-02-07
申请号：US648707
申请日：1984-09-07
申请人： Hugo Vlasbloem
发明人： Hugo Vlasbloem
CPC分类号： A61B6/4476 , A61B6/06 , H05G1/58 , A61B6/548
摘要： There is disclosed a method for forming a radiogram of an object comprising the steps of energizing an X-ray source at a low level of radiation intensity wherein the X-ray source includes a slit diaphragm, pivoting the X-ray source during a first scanning of the object, moving an elongated X-ray detector in respect to the pivoting of the X-ray source to generate an output signal of intensity of the object during the first scanning thereof, measuring the output signal during at least a portion of said first scanning, energizing the X-ray source to a higher level of radiation intensity as determined by the output signal from the X-ray detector during the first scanning, pivoting the X-ray source during a second scanning of the object, moving the X-ray detector during the second scanning to generate a second output of radiation intensity and forming a radiogram from the second output signals.
摘要翻译： 公开了一种用于形成物体的放射线图像的方法，包括以下步骤：以低的辐射强度激励X射线源，其中X射线源包括狭缝光阑，在第一扫描期间使X射线源旋转 相对于X射线源的枢转移动细长的X射线检测器以在其第一次扫描期间产生物体的强度的输出信号，在所述第一扫描的至少一部分期间测量输出信号 在第一次扫描期间，通过来自X射线检测器的输出信号确定的X射线源的X射线源激发到更高水平的辐射强度，在对象的第二次扫描期间使X射线源旋转， 在第二扫描期间产生射线强度的第二输出并从第二输出信号形成放射线图。
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公开(公告)号：US4131797A
公开(公告)日：1978-12-26
申请号：US856318
申请日：1977-12-01
申请人： Kurt Franke
发明人： Kurt Franke
摘要： In an illustrated embodiment, a switch control handle is shiftable from an upper position to a lower position to disconnect the fluoroscopic x-ray voltage and condition the circuitry for a transition to photographic exposure. Further downward shifting connects the x-ray high voltage until the automatic exposure control terminates the exposure. By coupling the control handle to a selector switch, a single manually adjustable set point potentiometer may select the fluoroscopy voltage set point in the upper position of the handle while adjusting the exposure time for patient constitution in the lower position.
摘要翻译： 在图示的实施例中，开关控制手柄可以从上部位置移动到下部位置，以断开荧光透视X射线电压，并调节电路以转换到照相曝光。 进一步向下移动连接x射线高电压直到自动曝光控制终止曝光。 通过将控制手柄连接到选择器开关，单个可手动调节的设定点电位器可以在将手柄的上部位置的透视电压设定点选择为较低位置的患者构造的曝光时间。
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45.发明授权
公开(公告)号：US4117335A
公开(公告)日：1978-09-26
申请号：US823714
申请日：1977-08-11
申请人： Kurt Franke
发明人： Kurt Franke
摘要： In a fluoroscopic and photographic exposure installation where photographic exposure high voltage is normally automatically derived from the voltage setting during fluoroscopy, a pair of manually operable switches are provided in the motor control circuit for inserting respective preselected reference levels which override the normal adjustment of exposure voltage based on fluoroscopic voltage, and instead control the exposure voltage selectively to a higher setting giving a particularly brief exposure, or to a relatively low value giving improved contrast.
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公开(公告)号：US4058833A
公开(公告)日：1977-11-15
申请号：US537776
申请日：1974-12-31
申请人： Fred H. Meyer
发明人： Fred H. Meyer
CPC分类号： A61B6/4225 , H04N5/32 , H05G1/58 , H05G1/64
摘要： An apparatus and method is disclosed for producing photographs and bright fluoroscopic television pictures of radiation patterns from a subject as converted to visible light images by an image tube. The apparatus includes a radiation source for directing X-radiation through a subject, and an image tube for receiving that radiation and producing in response thereto a visible image of the pattern of such radiation impinging upon the image tube. The apparatus also includes a film camera and a television camera for viewing the image tube output. A diverter apparatus controls the selective transmission of the light image from the image tube onto the film camera and television camera.The film camera is directly aligned with the image tube output. The television camera is transversely displaced with respect to the image tube output. The diverter directs light from the image tube to the television camera in bursts syncronized with the field repetition rate of the television camera. During the remainder of the time, the diverter permits light from the image tube output to pass directly to the film camera.
摘要翻译： 公开了一种用于通过图像管转换成可见光图像的用于产生来自被摄体的辐射图案的照片和亮荧光透视电视图像的装置和方法。 该装置包括用于将X射线引导通过对象的辐射源，以及用于接收该辐射的图像管，并响应于此产生照射到图像管上的这种辐射的图案的可见图像。 该装置还包括用于观看图像管输出的胶片相机和电视摄像机。 分流装置控制从图像管将光图像选择性地传输到胶片相机和电视摄像机上。
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47.发明授权X-ray diagnostic apparatus for radioscopy and X-ray film exposures including an X-ray tube having a rotating anode 失效包括具有旋转阳极的X射线管的放射线检查和X射线胶片曝光的X射线诊断装置
公开(公告)号：US3974384A
公开(公告)日：1976-08-10
申请号：US517067
申请日：1974-10-22
申请人： Hans-Werner Winkler
发明人： Hans-Werner Winkler
摘要： An X-ray diagnostic apparatus employed in radioscopy and for X-ray film exposures, including an X-ray tube with a rotating anode, in which the transitional time during changes in operational mode is completely eliminated. A circuit arrangement is included in the X-ray diagnostic apparatus in which each exposure upon actuation of an exposure triggering element immediately follows the preceding radioscopic operation, and wherein a signal corresponding to the actual value of the anode rotational speed is transmitted to a power output adjusting element, the power adjusting element being programmed in conformance with the permissible cycle of the X-ray tube power output in dependence upon the anode rotational speed, and to thereby effect the setting of the X-ray tube power output associated with the respective anode rotational speed.
摘要翻译： 一种X射线诊断装置，其用于放射线检查和X射线胶片曝光，包括具有旋转阳极的X射线管，其中完全消除了操作模式改变期间的过渡时间。 电路装置包括在X射线诊断装置中，其中在曝光触发元件致动时的每次曝光紧跟在先前的放射线操作之后，并且其中对应于阳极转速的实际值的信号被发送到功率输出 调节元件，功率调节元件根据阳极转速与X射线管功率输出的容许周期一致地编程，从而实现与相应阳极相关联的X射线管功率输出的设定 转速。
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公开(公告)号：US3675020A
公开(公告)日：1972-07-04
申请号：US3675020D
申请日：1969-09-24
申请人： CGR MEDICAL CORP
摘要： Simple unified circuitry for use in controlling an X-ray generator for combining a selected photomultiplier tube with an operational amplifier which is either in an integrator mode or signal amplifier mode depending on whether radiographic procedures, fluoroscopic procedures or cine procedures are to be used.
摘要翻译： 用于控制X射线发生器的简单统一电路，用于将选定的光电倍增管与运算放大器组合，该放大器处于积分器模式或信号放大器模式中，这取决于是否要使用射线照相术，荧光检查程序或电影程序。
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公开(公告)号：US2215744A
公开(公告)日：1940-09-24
申请号：US22690638
申请日：1938-08-26
发明人： KARL SILBERMANN
IPC分类号： H05G1/58
CPC分类号： H05G1/58
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