Dental x-ray diagnostics installation for producing panorama slice
exposures of the jaw of a patient
    1.
    发明授权
    Dental x-ray diagnostics installation for producing panorama slice exposures of the jaw of a patient 失效
    用于产生患者颌骨全景切片暴露的牙科X线诊断装置

    公开(公告)号:US4823369A

    公开(公告)日:1989-04-18

    申请号:US140123

    申请日:1987-12-31

    CPC分类号: A61B6/14

    摘要: A dental x-ray diagnostics installation has a rotary unit carrying an x-ray source and a radiation detector disposed behind a secondary diaphragm, the rotary unit rotating around the jaw of a patient to produce panorama tomograph exposures of the patient's jaw. The radiation detector generates electrical signals proportional to the incident radiation intensity. To simplify signal processing, the detector is formed of one or more semiconductor detectors having a scintillation layer which corresponds to the size of the opening in the secondary diaphragm. The voltages acquired by the detector are converted to digital form, and stored in an image memory. A computer calculates a total image from the signals supplied by the detector, and stored in the memory, during a complete exposure. The signals from the image memory are combined to generate a tomogram of a desired slice of the patient's jaw.

    摘要翻译: 牙科X射线诊断装置具有携带x射线源的旋转单元和设置在次级隔膜后面的放射线检测器,旋转单元绕患者的颌骨旋转以产生患者颌骨的全景断层摄影。 辐射探测器产生与入射辐射强度成比例的电信号。 为了简化信号处理,检测器由具有闪烁层的一个或多个半导体检测器形成,该闪烁层对应于次级隔膜中的开口的尺寸。 由检测器获取的电压被转换为数字形式,并存储在图像存储器中。 计算机根据检测器提供的信号计算总图像,并在完全曝光期间存储在存储器中。 来自图像存储器的信号被组合以产生患者颌骨的期望切片的断层图像。

    Dental X-ray diagnostic installation for producing panoramic tomograms
of the jaw of a patient
    2.
    发明授权
    Dental X-ray diagnostic installation for producing panoramic tomograms of the jaw of a patient 失效
    用于产生患者下颚的全景断层图的牙科X线诊断装置

    公开(公告)号:US4811372A

    公开(公告)日:1989-03-07

    申请号:US942747

    申请日:1986-12-17

    IPC分类号: A61B6/14 G03B41/16

    CPC分类号: A61B6/14

    摘要: In order to provide a dental X-ray diagnostic installation for producing panoramic tomograms of the jaw of the patient and to achieve a simple structure with improved image quality, the apparatus includes an adjustment mechanism for the carrier of the radiation source and the film cassette holder to be adjusted in an orbital curve corresponding to the dental arch of the patient. The adjustment arrangement includes first adjustment parts with which the carrier can be rotated around a first vertical axis, and second adjustment elements for moving or swivelling the first axis in an arch transverse relative to the symmetry axis of the subject during the rotary motion. The swivel radius and the amount of excursion of this swivel motion are selected so that the perpendicular transillumination direction through the subject gives a constant distance between the subject and the film during the motion of the rotary unit. To accomplish this, the invention includes two separate embodiments with various modifications.

    摘要翻译: 为了提供用于产生患者颚骨的全景断层图像的牙科X射线诊断装置,并且为了实现具有改善的图像质量的简单结构,该装置包括用于辐射源的载体和胶片盒保持器的调节机构 在对应于患者牙弓的轨迹曲线中进行调整。 调节装置包括第一调节部件,其中托架可围绕第一垂直轴线旋转;以及第二调节元件,用于在旋转运动期间使第一轴线相对于被检体的对称轴线在横向上移动或旋转。 选择旋转半径和旋转运动的偏移量,使得通过被摄体的垂直透照方向在旋转单元的运动期间给出被摄体和胶片之间的恒定距离。 为了实现这一点,本发明包括具有各种修改的两个单独的实施例。

    Dental x-ray diagnostics installation for producing panorama slice
exposures of the jaw of a patient
    4.
    发明授权
    Dental x-ray diagnostics installation for producing panorama slice exposures of the jaw of a patient 失效
    用于产生患者颌骨全景切片暴露的牙科X线诊断装置

    公开(公告)号:US4878234A

    公开(公告)日:1989-10-31

    申请号:US150379

    申请日:1988-01-29

    摘要: A dental x-ray diagnostics installation for producing panorama tomograms of the jaw of a patient has a radiation source and a detector, which converts x-radiation into corresponding light radiation, disposed on opposite sides of the patient. The detector is preceded by a secondary diaphragm. The radiation source, the detector and the secondary diaphragm are rotated around the patient so that radiation attenuated by the jaw, and passing through the secondary diaphragm is incident on the detector. At least one CCD sensor is provided on which light radiation generated by the detector is incident. The CCD sensor converts the light radiation into electrical signals. The sensor has an image zone with a number of lines parallel to a longitudinal extent of the opening of the secondary diaphragm, and has a storage zone. The lines in combination receive all of the light radiation so as to generate a complete charge image corresponding to the x-radiation incident on the detector. A clock generator is provided which controls transfer of the charge from the lines of the image zone into the storage zone, and also controls read-out of the storage zone. By selecting the frequency of the clock pulses generated by the clock pulse generator, the transfer and read-out speed can be selected to simulate the speed of movement of x-ray film in a conventional dental panorama tomography apparatus.

    摘要翻译: 用于产生患者颌骨的全景断层图的牙科X射线诊断装置具有放射源和检测器,其将x辐射转换成设置在患者的相对侧上的相应的光辐射。 检测器之前是次级隔膜。 辐射源,检测器和次级隔膜围绕患者旋转,使得由钳口衰减并通过次级隔膜的辐射入射到检测器上。 提供至少一个CCD传感器,其上由检测器产生的光辐射入射。 CCD传感器将光辐射转换为电信号。 传感器具有平行于次级隔膜的开口的纵向长度的多条线的图像区域,并且具有存储区域。 组合的线接收所有的光辐射,以产生对应于入射在检测器上的x辐射的完整的电荷图像。 提供时钟发生器,其控制电荷从图像区域的线路转移到存储区域中,并且还控制存储区域的读出。 通过选择由时钟脉冲发生器产生的时钟脉冲的频率,可以选择传送和读出速度来模拟常规牙科全景断层摄影装置中的X射线胶片的移动速度。

    Dental x-ray diagnostics installation for producing panoramic exposures
of slices in the skull
    5.
    发明授权
    Dental x-ray diagnostics installation for producing panoramic exposures of slices in the skull 失效
    用于生产颅骨切片全景曝光的牙科X射线诊断装置

    公开(公告)号:US4856038A

    公开(公告)日:1989-08-08

    申请号:US101722

    申请日:1987-09-28

    摘要: A dental x-ray diagnostic installation for the production of panoramic exposures of slices of the skull of the patient particularly in the region of the jaw, characterized by an exposure unit with an x-ray unit pivotable around an axis and displaceable in a plane perpendicular to the axis, a film holder unit lying opposite and moveable relative to the x-ray unit, a head holder arranged between the two units, a control arrangement for controlling the pivoting and displacement movement of the exposure unit relative to the head holder and also controlling the movement of the film holder relative to the x-ray tube of the exposure means and an input arrangement for inputting information of the selected curvature of the slice being exposed. The improvements are that the input means is constructed so that the curvature of the slice to be exposed can be directly graphically inputted into the control arrangement such as by means of a monitor with a light pen or by means of a "computer graphic tablet".

    摘要翻译: 一种牙科X射线诊断装置,用于生产患者颅骨的切片的全景曝光,特别是在颌部区域中,其特征在于具有可围绕轴线枢转并可在垂直的平面中移位的x射线单元的曝光单元 相对于轴线,相对于x射线单元相对且可移动的胶片保持器单元,布置在两个单元之间的头部保持器,用于控制曝光单元相对于头部保持器的枢转和移动运动的控制装置, 控制胶片保持器相对于曝光装置的X射线管的移动,以及用于输入被曝光的切片的所选曲率的信息的输入装置。 改进之处在于,输入装置被构造成使得要被曝光的切片的曲率可以直接图像地输入到控制装置中,例如借助于使用光笔的监视器或者借助于“计算机图形输入板”。

    Apparatus for positioning the head of a patient for producing x-ray
pictures
    6.
    发明授权
    Apparatus for positioning the head of a patient for producing x-ray pictures 失效
    用于定位患者头部用于产生X射线照片的装置

    公开(公告)号:US4831645A

    公开(公告)日:1989-05-16

    申请号:US100221

    申请日:1987-09-23

    IPC分类号: A61B6/08 A61B6/14

    CPC分类号: A61B5/1077 A61B6/08 A61B6/14

    摘要: An apparatus for positioning the head of a patient for producing dental panorama tomograms, which apparatus has an arrangement for positioning the head in a desired position relative to a fixed point with respect to at least one projection plane and this point, in turn, assumes a definite position relative to a central ray extending from the x-ray tube towards the x-ray picture, characterized by an arrangement for producing silhouettes and for projecting the silhouettes of the head in an actual position and in a desired position, simultaneously with the fixed point of each of the two silhouettes coinciding. By moving the head forming the silhouette of the actual position, the silhouette of the actual position can be moved to be congruent with the silhouette of the desired position to bring the head into the desired position for x-ray exposure.

    摘要翻译: 一种用于定位用于产生牙科全景断层图像的患者头部的装置,该装置具有用于相对于至少一个投影平面相对于固定点将头部定位在期望位置的布置,并且该点又呈现为 相对于从X射线管朝向x射线照片延伸的中心射线的确定位置,其特征在于用于产生剪影并用于将头部的轮廓在实际位置和期望位置投影的装置,与固定的 每个两个剪影的点都重合。 通过移动形成实际位置的轮廓的头部,实际位置的轮廓可以移动到与期望位置的轮廓一致,以使头部进入用于X射线曝光的期望位置。

    X-ray equipment support apparatus
    7.
    发明授权
    X-ray equipment support apparatus 失效
    X光设备支持设备

    公开(公告)号:US4807272A

    公开(公告)日:1989-02-21

    申请号:US845688

    申请日:1986-03-28

    CPC分类号: A61B6/4429 A61B6/14

    摘要: In medical, particularly dental medical apparatus which comprise a stationarily erectible post at which a carriage is adjustably held by means of a guidance device as a carrier of a medical apparatus, for example an X-ray apparatus, a simplified post design is provided. This is composed of a tubular frame which contains two vertical carrying pipes which extend parallel to one another and accept the carriage therebetween and which are connected to one another by a cross-strut at their ends. The two carrying pipes comprise at least one transverse division which roughly halves the tube length, the divided tube sections being connected to one another at this transverse division upon assembly. The guidance elements for the carriage are situated in the carrying pipes.

    摘要翻译: 在医疗,特别是牙科医疗装置中,包括通过作为医疗装置的载体的引导装置(例如X射线装置)可调节地保持托架的立体直立柱,提供了简化的柱设计。 它由管状框架组成,该管状框架包含彼此平行延伸的两个垂直承载管,并在其间接受托架,并且它们的端部通过横向支柱彼此连接。 两个承载管包括至少一个横截面,其大致使管长度减半,分开的管部分在组装时以横向划分相互连接。 托架的引导元件位于承载管中。

    Hydraulic-pneumatic control device for controlling the flow of agents to
hand-held dental apparatus
    8.
    发明授权
    Hydraulic-pneumatic control device for controlling the flow of agents to hand-held dental apparatus 失效
    液压气动控制装置,用于控制药剂流入手持牙科设备

    公开(公告)号:US4136450A

    公开(公告)日:1979-01-30

    申请号:US720251

    申请日:1976-09-03

    摘要: A hydraulic-pneumatic control device characterized by a narrow elongated supply strip having a plurality of channels extending parallel to a longitudinal axis of the strip, a plurality of separate groups of openings spaced along the strip with each group having an opening in communication with each channel, a connecting block having a plurality of separate passages mounted on the strip with the passages in communication with the channels and a control block for each of the dental apparatuses whose agents are being regulated. Each of the control blocks is mounted on the separate group of openings of the supply strip for receiving agents from the channels therein and each block has pneumatically actuated valves for regulating the flow of the agent therethrough.

    摘要翻译: 一种液压气动控制装置,其特征在于窄的细长供给条带,其具有平行于条带的纵向轴线延伸的多个通道,多个沿该条带间隔开的分开的开口组,每个组具有与每个通道连通的开口 ,连接块,其具有安装在带上的多个分离通道,通道与通道连通;以及控制块,用于其代理人被调节的每个牙科设备。 每个控制块安装在供应条的分开的一组开口上,用于从其中的通道接收试剂,并且每个块具有用于调节试剂通过其中的流动的气动致动阀。

    X-ray equipment support apparatus
    10.
    发明授权
    X-ray equipment support apparatus 失效
    X光设备支持设备

    公开(公告)号:US4802198A

    公开(公告)日:1989-01-31

    申请号:US843258

    申请日:1986-03-24

    IPC分类号: A61B6/00 A61B6/14 H05G1/02

    CPC分类号: A61B6/447 A61B6/14

    摘要: An apparatus for supporting an X-ray unit in a vertically adjustable manner. The apparatus includes a frame having two posts and a carrier supported between the posts. The post are slotted and the carrier includes guide members received within the slots. The carrier also includes a counterbalance for supporting the carrier between the post. The counterbalance includes a support cable and force element.

    摘要翻译: 一种用于以可垂直调节的方式支撑X射线单元的装置。 该装置包括具有两个柱的框架和支撑在柱之间的承载件。 该柱是开槽的,并且载体包括接收在槽内的引导构件。 载体还包括用于在柱之间支撑载体的平衡物。 平衡包括支撑电缆和力元件。