• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The specification relates to an apparatus intended for panoramic X-ray photography of the area of the dentition and the jaws, the apparatus comprising a frame (1), a bearing part (2) which is linearly movable in relation to the frame part, and a support arm (10) which has been attached by means of bearings rotatably to the bearing part and which has at one end an X-ray film (11) and at the opposite end a source of X-radiation (12). The movements of the bearing part (2), the support arm (10) and the film (11) are mutually synchronized in such a way that an image of an area of the desired shape, for example an area the shape of the patient's dental arch, is obtained on the film during the movement. It is the object of the invention to provide the effect that the X-ray beam can be tilted to the desired angle in relation to the horizontal plane, whereby it is possible with greater sharpness than previously to photograph, for example, teeth slanted in relation to the vertical plane. In accordance with the invention, the support arm (10) is attached with bearings to the bearing part (2) so as to be tiltable about an axis perpendicular to the rotational axis of the support arm so that, when the rotational axis is vertical the straight line connecting the source of radiation (12) and the film (11) is oblique to the horizontal level. The structural parts (9, 16) between the bearing part (2) and the support arm (10) have curved guide means (13, 14) which work in conjunction with each other and the mutual
    公开号:SU1424720A3
    申请号:SU853856871
    申请日:1985-01-31
    公开日:1988-09-15
    发明作者:Таммисало Эркки；Канерва Хейкки；Аарнио Яакко；Ведерхорн Маркку；Ланер Кай
    申请人:Орион-Ихтюмя Ой (Фирма)；
    IPC主号:
    专利说明:

     CM
    The invention relates to medical technology, in particular to X-ray diagnostic equipment.
    The purpose of the invention is to provide adjustment of the spatial lobe of the radiation beam and simplify the selection of the image scale without displacing the patient.
    FIG. Figures 1 and 2 show the device in a disassembled state.
    The device for radiography of the crown and dental area contains a stationary frame 1 mounted on a vertical stand with a stand. On the stationary frame 1, a carrier unit 2 is placed, which can be moved in a horizontal plane when supported on rails 3 by means of a stepper motor 4, the shaft of which is a screw 5, which is coupled to the component fixed to the carrier unit 2. A coupling is connected to the carrier unit through bearings 6 rotatably by means of a stepper motor 7 and a V-belt 8,
    A box-shaped unit 9 is connected to the coupling 6, on which a support bracket 10 is installed, having a movable X-ray film 11 at one end, and a source of X-ray radiation 12 with beam limiting means at the other end. At least the middle portion of the support bracket 10 is curved such that the center of the curve, i.e. tilt axis, located at the level of the patient's head.
    The guide rollers 13 and -14 are fixed to the box-shaped assembly 9 using bearings, which are in contact with the side and upper and lower surfaces of the middle portion of the support bracket 10. With the box-shaped knot 9, the motor 16 is rotated through the shaft 15, the threaded shaft 17 of which is located the direction of the longitudinal axis of the support bracket and engages with the mating, threaded part 18, pivotally fastened to the side of the support bracket 10.
    To ensure that the image is scaled without moving the patient, the box-shaped unit 9 is connected to the sleeve 6 by means of a plate-like unit 19 fastened with screws 6 and mounted in the longitudinal guides 20 on the inside sides of the box-shaped unit 9. connected with a threaded longitudinal shaft with the inner side of the box-shaped assembly 9.
    The device works as follows.
    In the production of panoramic radiography, the support bracket 10 is rotated with the help of the engine 7 around a vertical axis. In order to obtain a clear image of the dental arch, the axis of rotation of the support bracket 10 together with the carrying unit 2 during the exposure of the X-ray film 11 is moved linearly and parallel to the axis of symmetry of the dental arch. In this case, the movement of the carrier node 2, the reference
    the bracket 10 and the film 11 are synchronized in such a way that a clear image of the desired area is obtained on the film. To obtain a clear image of the teeth deviating from the vertical plane, tilt the support bracket 10 by moving it along the guide rollers 13 and 14 by means of the engine 16. All of these adjustments can be made continuously during the exposure. When stepping motors are controlled by the processor, several mutually synchronized adjustments can be made. I
    If it is necessary to change the image scale, the support bracket 10 with the radiation source 12 and the X-ray film 11 is moved in a direction parallel to the plane
    x-ray, by
    motor 21, without moving the patient.
    权利要求:
    Claims (3)
    [1]
    1. Device for radiography
    the maxillary and dental areas containing a stationary frame, a bearing unit placed on a stationary frame with the possibility of movement relative to it, and a support bracket, which is rotatably connected with bearings to the bearing node and having an X-ray source at one end, and a movable one at the other x-ray film, which is different from the fact that, in order to ensure the adjustment of the spatial position of the beam, the middle portion of the supports
    The curved arm is bent, the support arm is connected to the carrier assembly by means of a box-shaped assembly that can be moved along a curve determined by the shape of the middle portion of the support bracket, along guide rollers mounted on the frame-shaped assembly.
    [2]
    2. The device according to claim 1, characterized in that it comprises a motor, pivotally attached to a box-shaped assembly, a threaded motor shaft, located in the direction of the longitudinal axis of the support bracket and engaging with
    threaded part articulated with a support bracket.
    [3]
    3. The device according to claim 1, characterized in that, in order to simplify the selection of the image scale without displacing the patient, the box-like assembly is connected to the carrier assembly by means of a plate-like assembly, attached to a sleeve, pivotally connected bearing to the carrier assembly, and the plate-like assembly has a longitudinal section with respect to the box-shaped unit along the guides mounted on the sides of the box-like unit.
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    L7
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    同族专利:
    公开号 | 公开日
    FI840413A|1985-08-02|
    AU570765B2|1988-03-24|
    AU3799985A|1985-08-08|
    DE3578115D1|1990-07-19|
    EP0151007B1|1990-06-13|
    CA1246921A|1988-12-20|
    ES539980A0|1985-12-01|
    EP0151007A3|1987-03-18|
    EP0151007A2|1985-08-07|
    JPS60179046A|1985-09-12|
    FI73361C|1987-10-09|
    US4646335A|1987-02-24|
    ES8602385A1|1985-12-01|
    FI73361B|1987-06-30|
    AT53478T|1990-06-15|
    FI840413A0|1984-02-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1074211B|1960-01-28|Siemens-Reiniger-Werke Aktiengesellschaft, Erlangen|X-ray examination machine|
    US2595260A|1949-02-05|1952-05-06|F R Machine Works|Multiplane X-ray apparatus|
    FR2054492B1|1969-07-16|1974-06-14|Radiologie Cie Gle|
    DE2134122C3|1971-07-08|1984-05-30|Siemens AG, 1000 Berlin und 8000 München|X-ray machine for skull examinations|
    JPS551053B2|1976-02-25|1980-01-11|
    FI66993C|1976-12-10|1984-12-10|Orion Yhtymae Oy|ROERELSEMEKANISM FOER EN ROENTGENSTRAOLNINGSKAELLAN OCH FILMHAOLLARE FOER PANORAMA-ROENTGENFOTOGRAFERING|
    DE2758191A1|1977-12-27|1979-06-28|Siemens Ag|DENTAL X-RAY DIAGNOSTIC DEVICE|
    US4373361A|1981-04-13|1983-02-15|Thorneburg James L|Ski sock with integrally knit thickened fabric areas|
    EP0069607B1|1981-06-23|1987-05-06|Thomson-Csf|Sliding load holder with a telescopic structure and x-ray apparatus provided with such a sliding load holder|
    US4534048A|1983-01-03|1985-08-06|Pennwalt Corporation|Methods of increasing anterior layer thickness of continuous dental images obtained through rotational panoramic radiography|US4845767A|1985-12-16|1989-07-04|Matsushita Electric Industrial Co., Ltd.|Image signal processor|
    FI79459C|1986-02-04|1990-01-10|Orion Yhtymae Oy|Procedure and facility for X-ray photography of the area of the teeth, jaws and skull|
    JPH0745205Y2|1989-03-31|1995-10-18|株式会社東京エミックス|Temporomandibular joint photography adapter|
    US5793837A|1995-02-08|1998-08-11|Mezhinsky; Victor B.|Apparatus and method for X-ray tomography|
    DE102004050172B4|2004-08-20|2010-09-02|"Stiftung Caesar" |3D reconstruction with oblique geometry|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI840413A|FI73361C|1984-02-01|1984-02-01|ROENTGENFOTOGRAFERINGSANORDNING FOER TAENDERNA OCH HAKORNA.|
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