JPS61191011U

JPS61191011U -

Info

Publication number: JPS61191011U
Application number: JP7463185U
Authority: JP
Priority date: 1985-05-20
Filing date: 1985-05-20
Publication date: 1986-11-28
Also published as: JPH0352491Y2

Description

[Brief explanation of drawings]

第１図は従来のセフアロ撮影装置の平面概略図
、第２図は実願昭５８第０８９３９３号のセフア
ロ撮影装置の平面概略図、第３図はこの考案にか
かる実施例セフアロ撮影装置の側面図、第４図は
上記装置の平面図、第５図は上記装置のＸ線フイ
ルム回動位置決め装置の外観斜視図（１部内部機
構を示す）、第６図は上記装置のＸ線フイルム回
動位置決め装置の別の実施例の外観斜視図（１部
内部機構を示す）である。１……被検者の頭部、２……頭部固定装置、３
，３′……１対のイヤーロツト、４……両外耳孔
を結ぶ基準線、５……正中矢状平面、Ｐ……４の
基準線と５の平面との交点、６，７……１対のＸ
線焦点、８，９……６，７の焦点をもつＸ線管装
置、１８……患者用椅子、１９……椅子台座、２
１……床面、１２，１３，１５，２３……Ｘ線フ
イルム保持体、Ｈ……床面から４の基準線までの
規定の高さ、２５……Ｘ線フイルム回動位置決め
装置、２６……上記２５の回動機構本体部、２７
……上記２５の水平アーム部、２９……上記２５
の支柱部、３０……回動機構の主軸、３０ｃ……
上記３０の軸心（上記Ｐの鉛直線と合致するもの
）。 FIG. 1 is a schematic plan view of a conventional cephalometric imaging device, FIG. 2 is a schematic plan view of the cephalometric imaging device disclosed in Utility Application No. 58 No. 089393, and FIG. 3 is a side view of an embodiment of the cephalometric imaging device according to this invention. , FIG. 4 is a plan view of the above device, FIG. 5 is an external perspective view of the X-ray film rotation positioning device of the above device (partially showing the internal mechanism), and FIG. 6 is a diagram showing the X-ray film rotation of the above device. FIG. 7 is an external perspective view (partially showing the internal mechanism) of another embodiment of the positioning device. 1... Subject's head, 2... Head fixation device, 3
, 3'... A pair of ear rods, 4... A reference line connecting both external auditory foramina, 5... Median sagittal plane, P... The intersection of the reference line of 4 and the plane of 5, 6, 7...1 pair of x
Line focus, 8, 9... X-ray tube device with 6, 7 focuses, 18... Patient chair, 19... Chair pedestal, 2
1... Floor surface, 12, 13, 15, 23... X-ray film holder, H... Specified height from floor surface to reference line 4, 25... X-ray film rotation positioning device, 26 ...The rotation mechanism main body section of 25 above, 27
...Horizontal arm part of 25 above, 29...25 above
Support column, 30...Main shaft of rotation mechanism, 30c...
The axis of 30 above (which matches the vertical line of P above).

Claims

[Claims for Utility Model Registration] 1. A head fixing device that fixes the subject's head in a prescribed position, and a head fixing device that is arranged at a predetermined distance in the rear direction and one side direction of the fixed head. an X-ray film holder that faces these X-ray focal points across the head and is arranged at a constant relative position to the X-ray focal point and the head; In an apparatus configured to take standard photographs of the front and side faces of a subject's head, the X-ray film holder is constituted by a cassette-less copying device that automatically transports the X-ray film, and the X-ray film surface of the copying device is is held at a predetermined height and rotated around the head around the vertical line at the intersection of the reference line connecting both external auricular canals of the subject and the median sagittal plane, and selectively rotated from the front and side. 1. A cranial X-ray standard photography device, characterized in that it is provided with an X-ray film rotating positioning device for positioning the X-ray film at a photographing position. 2. A cranial X-ray standard photography device according to claim 1, wherein the rotation mechanism of the X-ray film rotation positioning device is formed between the base of a patient chair and the floor surface.