CN102772221B - CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging - Google Patents
CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging Download PDFInfo
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- CN102772221B CN102772221B CN201210288337.8A CN201210288337A CN102772221B CN 102772221 B CN102772221 B CN 102772221B CN 201210288337 A CN201210288337 A CN 201210288337A CN 102772221 B CN102772221 B CN 102772221B
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Abstract
The invention discloses a CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging. The CCD angle adjusting device comprises a U-shaped hanging rack joint, a CCD hanging rack and a CCD mounting plate, wherein a CCD is fixed at the front part of the CCD mounting plate. The CCD angle adjusting device is characterized in that the CCD hanging rack is connected with the U-shaped hanging rack joint through a horizontal angle adjusting mechanism which drives the CCD hanging rack to rotate by taking a Z axis as a centre; the CCD mounting plate is connected with the CCD hanging rack through a translation adjusting mechanism which drives the CCD mounting plate to translate along an X axis, and meanwhile, the CCD mounting plate is connected with the CCD hanging rack through a vertical angle regulating mechanism which drives the CCD mounting plate to rotate by taking a Y axis as a centre to rotate; and the Z axis is perpendicular to the ground, the Y axis is perpendicular to a CCD receiving screen, and the X,Y and Z axes form a space rectangular coordinate system. The CCD angle adjusting device can be used for performing fine adjustment on the three-dimensional angle and displacement of the CCD so as to ensure that a connecting line of the CCD and the center point of an X ray source is accurately perpendicular to the CCD receiving screen and an X ray source launching mirror face, thereby improving the quality of a tomography image.
Description
Technical field
the present invention relates to a kind of dentistry CT imaging CCD angular adjustment apparatus.
Background technology
x ray image technology is very important diagnosis and treatment means in stomatology.Conventional common X-ray technique (RUGEN splinter, bite film, whole scenery piece etc.) is although easy and simple to handle, radiological dose is little, be widely used, but what these technology obtained is all two dimensional image, there is the problems such as structure forward laps, deformation of image, can not accurately reflect tooth, the isostructural three-dimensional information of periodontal, run into difficult diseases and be often difficult to make a definite diagnosis.Traditional CT can provide three-dimensional information, but its radiological dose is large, expensive, the lack of resolution to dental imaging, and the application in stomatology is limited.Compare emerging dentistry CT(cone-beam with these stomatology image technologies) there is following remarkable advantage:
1. the spatial resolution of dentistry CT is far above traditional CT: the minimum thickness of 320 layers of up-to-date traditional CT is also in 0.5mm left and right; And the resolving range of dentistry CT is 0.076-O.4mm at present.In clinical practice, also find that dentistry CT shows that the picture quality of the tiny anatomical structures such as tooth and periodontal tissue and maxillofacial bone bony structures is better than traditional CT, is also more suitable for the needs of clinical oral.
2. the scanning dose of dentistry CT is between 29-477uSv, relevant with the irradiation visual field (FOV) size adopting.This dosage is only the 1.5%-23.8% of traditional CT dosage (2000uSv left and right).If change scanning position (as chin tilts) or use local protection device (as thyroid protector for collar), dosage 40% left and right that also can decline.At present, dentistry CT even can be by dosage control below conventional panoramic radiograph.
existing dentistry CT formation mainly comprises that one is fixed on x-ray source and the CCD at U-shaped hanger two ends, and the patient's implement for fixing skull between x-ray source and CCD.When gathering image, x-ray source sends X ray, and ray is through patient's head, projects and on CCD, carries out imaging.In actual imaging process, need the line of the central point of x-ray source and CCD to launch minute surface perpendicular to CCD receiving screen and x-ray source, the projected image obtaining so just can obtain high-quality faultage image for rebuilding, otherwise will have influence on the faultage image after reconstruction.Yet above-mentioned existing dentistry CT can only be by the synchronous rough adjusting x-ray source of U-shaped hanger and CCD the position with respect to patient's implement for fixing skull, it is independently convenient for CCD(or x-ray source to lack) three-dimensional perspective and displacement carry out the mechanism arrangement of fine adjustment, thereby the line of central point that also just cannot guarantee accurately and reliably x-ray source and CCD is perpendicular to CCD receiving screen and x-ray source transmitting minute surface, causes the final faultage image quality obtaining not good.
Summary of the invention
the present invention seeks to: a kind of dentistry CT imaging CCD angular adjustment apparatus is provided, this device can carry out fine adjustment for three-dimensional perspective and the displacement of CCD, and easy to adjust, with this, guarantee in actual dentistry CT imaging process, after having determined the orientation angle of x-ray source, can be by make the line of central point of CCD and x-ray source accurately perpendicular to CCD receiving screen and x-ray source transmitting minute surface to the adjustment of CCD angle, thus faultage image quality promoted.
technical scheme of the present invention is: a kind of dentistry CT imaging CCD angular adjustment apparatus, comprise U-shaped hanger joint, CCD hanger and CCD installing plate, the anterior fixation of C CD of CCD installing plate, it is characterized in that described CCD hanger orders about its level angle governor motion rotating centered by Z axis by one and is connected with U-shaped hanger joint, and ordering about its translational controlling mechanism along X-axis translation by one, described CCD installing plate is connected with CCD hanger, while CCD installing plate also orders about its vertical angle governor motion rotating centered by Y-axis by one and is connected with CCD hanger, wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z tri-axle Special composition rectangular coordinate systems.
further, the actual preferred constructive form of the governor motion of level angle described in the present invention is as follows: it comprises that fixing or one is located on described U-shaped hanger joint and usings the rotating member of Z axis as axis of rotation, fixing or one is located at CCD hanger top for holding the rotation dimple of rotating member and being fixed on rotation dimple top for longitudinally locking the pressing plate of rotating member, on described rotating member, be arranged with two level angles adjusting blocks that are positioned at its axis of rotation both sides, and corresponding each level angle regulates the equal spiral shell of block to be provided with a pair of level angle adjusting bolt on described rotation dimple, every pair of level angle adjusting bolt is all coaxially arranged in opposite directions and is clipped described level angle and regulates block.
further, the actual preferred constructive form of translational controlling mechanism described in the present invention is as follows: it comprises the translational adjustment bumping post that horizontal helical is located at a pair of translational adjustment bolt on CCD hanger and is located at CCD installing plate rear portion, and described translational adjustment bumping post is coaxially arranged and clipped to described two translational adjustment bolts in opposite directions.
further, the actual preferred constructive form of the governor motion of vertical angle described in the present invention is as follows: it comprises the vertical angle adjusting block that longitudinal spiral shell is located at a pair of vertical angle adjusting bolt at CCD installing plate rear portion and is located at CCD hanger sidepiece, and described two vertical angle adjusting bolts are coaxially arranged in opposite directions and clipped described vertical angle and regulate block.
further, the thin optimized structure of the translational controlling mechanism in the present invention is as follows: the translational adjustment plate of fixing or be integrally formed with longitudinal layout on described CCD hanger, described translational adjustment plate be provided with for translational adjustment bumping post support into perforate, described two translational adjustment bolts are established and are penetrated in perforate from the horizontal spiral shell of sidepiece of translational adjustment plate, and clip described translational adjustment bumping post.
further, the thin optimized structure of the vertical angle governor motion in the present invention is as follows: the bolt installing plate of upper and lower two lateral arrangement is fixed or is integrally formed with at described CCD installing plate rear portion, and described two vertical angle adjusting bolts respectively spiral shell are located on described two bolt installing plates.
the present invention is when concrete use, and the same with routine techniques, U-shaped hanger joint is bolted to U-shaped hanger one end, and the other end of U-shaped hanger is fixing x-ray source.First by regulating U-shaped hanger to guarantee CCD, x-ray source and being positioned at patient's implement for fixing skull between the two substantially in line, then the position angle of x-ray source is implemented to pre-determined bit, even if with carrying out fine tuning to the angle position of CCD by this device provided by the invention.Wherein level angle governor motion mainly regulates CCD around the anglec of rotation of the Z axis perpendicular to ground, and while it should be noted that carrying out level angle regulates, rotating member is actually and does not rotate, rotation be CCD hanger and the rotation dimple on it.Described vertical angle governor motion mainly regulates CCD around the deviation angle (adjustable angular range is very little) of the Y-axis perpendicular to its receiving screen, and translational controlling mechanism mainly regulates CCD along the displacement of X-axis.Described X, Y, Z axis Special composition rectangular coordinate system is all imaginary axis.
advantage of the present invention is:
1. this dentistry CT imaging CCD angular adjustment apparatus provided by the invention, it can carry out fine adjustment to the three-dimensional perspective of CCD and displacement, and easy to adjust, with this, guarantee in actual dentistry CT imaging process, after having determined the orientation angle of x-ray source, can be by make the line of central point of CCD and x-ray source accurately perpendicular to CCD receiving screen and x-ray source transmitting minute surface to the adjustment of CCD angle, thus faultage image quality promoted.
2. this dentistry CT imaging CCD angular adjustment apparatus provided by the invention, it is simple in structure, and parts are few, assembling and easy to use, low cost of manufacture, has higher practicality.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is structural front view of the present invention (being assembled on U-shaped hanger);
fig. 2 is the left view (being assembled on U-shaped hanger) of Fig. 1;
fig. 3 is the right view (being assembled on U-shaped hanger) of Fig. 1;
fig. 4 is the top view of Fig. 1;
fig. 5 is that the A-A of Fig. 1 is to profile;
fig. 6 is perspective view of the present invention.
wherein: 1, U-shaped hanger joint; 2, CCD hanger; 3, CCD installing plate; 4, CCD; 5, rotating member; 6, rotation dimple; 7, pressing plate; 8, level angle regulates block; 9, level angle adjusting bolt; 10, translational adjustment bolt; 11, translational adjustment bumping post; 12, vertical angle adjusting bolt; 13, vertical angle regulates block; 14, translational adjustment plate; 15, perforate; 16, bolt installing plate; 17, U-shaped hanger.
The specific embodiment
embodiment: shown in Fig. 1-Fig. 6, this dentistry CT imaging CCD angular adjustment apparatus provided by the invention, it has U-shaped hanger joint 1, CCD hanger 2 and CCD installing plate 3, CCD installing plate 3 is anterior by screw fixation of C CD4, described CCD hanger 2 orders about its level angle governor motion rotating centered by Z axis by one and is connected with U-shaped hanger joint 1, and ordering about its translational controlling mechanism along X-axis translation by one, described CCD installing plate 3 is connected with CCD hanger 2, while CCD installing plate 3 also orders about its vertical angle governor motion rotating centered by Y-axis by one and is connected with CCD hanger 2, wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z tri-axle Special composition rectangular coordinate systems.
specifically in conjunction with shown in Fig. 1-Fig. 6, being constructed as follows of the governor motion of level angle described in the present embodiment: its have one be located on described U-shaped hanger joint 1 and using Z axis as the rotating member 5 of axis of rotation, be bolted on CCD hanger 2 tops for holding the rotation dimple 6 of rotating member 5 and being bolted on rotation dimple 6 tops for longitudinal left and right two block pressur plates 7 of locking rotating member 5, specifically see shown in Fig. 4 and Fig. 6.Described rotating member 5 bottom symmetries are integrally formed with two level angles adjusting blocks 8 that are positioned at its axis of rotation both sides, and on described rotation dimple 6, corresponding each level angle regulates the equal spiral shell of block 8 to be provided with a pair of level angle adjusting bolt 9, specifically as shown in Figure 1; Every pair of level angle adjusting bolt 9 is all coaxially arranged in opposite directions and is clipped described level angle and regulates block 8, specifically in conjunction with shown in Fig. 4, Fig. 5 and Fig. 6.
shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5 and Fig. 6, being constructed as follows of translational controlling mechanism described in the present embodiment: it has the translational adjustment bumping post 11 that one is located on CCD hanger 2 and translational adjustment plate 14, the horizontal helical longitudinally arranged are located at a pair of translational adjustment bolt 10 on translational adjustment plate 14 and are located at CCD installing plate 3 rear portions.The bumping post of translational adjustment described in the present embodiment 11 is screws that hammer into CCD installing plate 3 rear portions, specifically as shown in Figure 5.Described translational adjustment plate 14 be provided with for translational adjustment bumping post 11 support into perforate 15, described two translational adjustment bolts 10 from the sidepiece of translational adjustment plate 14 coaxially in opposite directions spiral shell establish and penetrate in perforate 15, and clip described translational adjustment bumping post 11, specifically see shown in Fig. 1 and Fig. 6.
shown in Fig. 1, Fig. 2 and Fig. 6, being constructed as follows of the governor motion of vertical angle described in the present embodiment: it has the vertical angle adjusting block 13 that longitudinal spiral shell is located at a pair of vertical angle adjusting bolt 12 at CCD installing plate 3 rear portions and is located at CCD hanger 2 sidepieces, and described two vertical angle adjusting bolts 12 are coaxially arranged in opposite directions and clipped described vertical angle and regulate block 13.The installing plate of CCD described in the present embodiment 3 rear portions are integrally formed with the bolt installing plate 16 of upper and lower two lateral arrangement, and described two vertical angle adjusting bolts 12 respectively spiral shell are located on described two bolt installing plates 16; And vertical angle described in the present embodiment regulates block 13 to be fixed by screws in translational adjustment plate 14 sidepieces on CCD hanger 2.
shown in Fig. 1-Fig. 3, the present invention is when concrete use, and the same with routine techniques, U-shaped hanger joint 1 is bolted to U-shaped hanger 17(figure and only draws part) one end, the other end of U-shaped hanger 17 is fixing x-ray source (not shown).First by regulating U-shaped hanger 17 to guarantee CCD4, x-ray source and being positioned at patient's implement for fixing skull between the two substantially in line, then the position angle of x-ray source is implemented to pre-determined bit, even if with carrying out fine tuning to the angle position of CCD4 by this device provided by the invention.Wherein level angle governor motion mainly regulates CCD4 around the anglec of rotation of the Z axis perpendicular to ground, and while it should be noted that carrying out level angle regulates, rotating member 5 is actually and does not rotate, rotation be CCD hanger 2 and the rotation dimple 6 on it.Described vertical angle governor motion mainly regulates CCD4 around the deviation angle (adjustable angular range is very little) of the Y-axis perpendicular to its receiving screen, and translational controlling mechanism mainly regulates CCD4 along the displacement of X-axis.Described X, Y, Z axis Special composition rectangular coordinate system is all imaginary axis.
certainly above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All modifications that the spirit of main technical schemes is done according to the present invention, within all should being encompassed in protection scope of the present invention.
Claims (6)
1. a dentistry CT imaging CCD angular adjustment apparatus, comprise U-shaped hanger joint (1), CCD hanger (2) and CCD installing plate (3), the anterior fixation of C CD(4 of CCD installing plate (3)), it is characterized in that described CCD hanger (2) orders about its level angle governor motion rotating centered by Z axis by one and is connected with U-shaped hanger joint (1), and ordering about its translational controlling mechanism along X-axis translation by one, described CCD installing plate (3) is connected with CCD hanger (2), while CCD installing plate (3) also orders about its vertical angle governor motion rotating centered by Y-axis by one and is connected with CCD hanger (2), wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z tri-axle Special composition rectangular coordinate systems.
2. dentistry CT imaging CCD angular adjustment apparatus according to claim 1, it is characterized in that described level angle governor motion comprises that fixing or one is located at described U-shaped hanger joint (1) upper and using the rotating member (5) of Z axis as axis of rotation, fixing or one is located at CCD hanger (2) top and is used for holding the rotation dimple (6) of rotating member (5) and is fixed on rotation dimple (6) top for longitudinally locking the pressing plate (7) of rotating member (5), on described rotating member (5), be arranged with two level angles adjusting blocks (8) that are positioned at its axis of rotation both sides, and upper corresponding each level angle of described rotation dimple (6) regulates the equal spiral shell of block (8) to be provided with a pair of level angle adjusting bolt (9), every pair of level angle adjusting bolt (9) is all coaxially arranged in opposite directions and is clipped described level angle and regulates block (8).
3. dentistry CT imaging CCD angular adjustment apparatus according to claim 1, it is characterized in that described translational controlling mechanism comprises that horizontal helical is located at a pair of translational adjustment bolt (10) on CCD hanger (2) and is located at the translational adjustment bumping post (11) at CCD installing plate (3) rear portion, described translational adjustment bumping post (11) is coaxially arranged and clipped to described two translational adjustment bolts (10) in opposite directions.
4. according to the dentistry CT imaging CCD angular adjustment apparatus described in claim 1 or 3, it is characterized in that vertical angle that described vertical angle governor motion comprises that longitudinal spiral shell is located at a pair of vertical angle adjusting bolt (12) at CCD installing plate (3) rear portion and is located at CCD hanger (2) sidepiece regulates block (13), described two vertical angle adjusting bolts (12) coaxially to arrange in opposite directions and clip described vertical angle and regulates block (13).
5. dentistry CT imaging CCD angular adjustment apparatus according to claim 3, it is characterized in that the upper translational adjustment plate (14) of fixing or being integrally formed with longitudinal layout of described CCD hanger (2), described translational adjustment plate (14) be provided with for translational adjustment bumping post (11) support into perforate (15), described two translational adjustment bolts (10) are established and are penetrated in perforate (15) from the horizontal spiral shell of sidepiece of translational adjustment plate (14), and clip described translational adjustment bumping post (11).
6. dentistry CT imaging CCD angular adjustment apparatus according to claim 4, it is characterized in that described CCD installing plate (3) rear portion fixes or be integrally formed with the bolt installing plate (16) of upper and lower two lateral arrangement, described two vertical angle adjusting bolts (12) respectively spiral shell are located on described two bolt installing plates (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288337.8A CN102772221B (en) | 2012-08-14 | 2012-08-14 | CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288337.8A CN102772221B (en) | 2012-08-14 | 2012-08-14 | CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging |
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| Publication Number | Publication Date |
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| CN102772221A CN102772221A (en) | 2012-11-14 |
| CN102772221B true CN102772221B (en) | 2014-02-26 |
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| CN201210288337.8A Expired - Fee Related CN102772221B (en) | 2012-08-14 | 2012-08-14 | CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104939860B (en) * | 2015-06-25 | 2018-01-05 | 苏州海斯菲德信息科技有限公司 | Toy CT imaging X-ray sources angular adjustment apparatus |
| CN104939862B (en) * | 2015-07-03 | 2018-07-17 | 苏州海斯菲德信息科技有限公司 | A kind of toy CT flat panel detector angular adjustment apparatus |
| CN106963405B (en) * | 2017-03-22 | 2023-04-07 | 浙江大学 | Novel oral cavity cone beam CT |
| CN115855982A (en) * | 2019-12-11 | 2023-03-28 | 同方威视技术股份有限公司 | Adjusting and positioning device and method for ray source assembly and radiation scanning imaging equipment |
| CN113606458B (en) * | 2021-07-30 | 2023-04-14 | 苏州康代智能科技股份有限公司 | Angle and distance precise adjusting device in three-dimensional space and optical detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FI119866B (en) * | 1997-09-30 | 2009-04-30 | Morita Mfg | X-ray apparatus with improved access for patients |
| CN100548220C (en) * | 2004-01-06 | 2009-10-14 | 株式会社日立医药 | X line photographic attachment |
| JP2007159987A (en) * | 2005-12-16 | 2007-06-28 | Morita Mfg Co Ltd | Radiographic equipment |
| CN101574262B (en) * | 2008-05-09 | 2013-03-20 | Ge医疗系统环球技术有限公司 | X-ray detecting apparatus and X-ray imaging device |
| JP5744573B2 (en) * | 2010-03-12 | 2015-07-08 | 株式会社モリタ製作所 | X-ray equipment |
| CN202751408U (en) * | 2012-08-14 | 2013-02-27 | 东南大学 | Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device |
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