CN202751408U - Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device - Google Patents
Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device Download PDFInfo
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- CN202751408U CN202751408U CN 201220401582 CN201220401582U CN202751408U CN 202751408 U CN202751408 U CN 202751408U CN 201220401582 CN201220401582 CN 201220401582 CN 201220401582 U CN201220401582 U CN 201220401582U CN 202751408 U CN202751408 U CN 202751408U
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Abstract
The utility model discloses a dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device. The dentistry CT imaging CCD angle-adjusting device comprises a U-shaped rack joint, a CCD rack and a CCD installing board, wherein a CCD is fixed on the front portion of the CCD installing board. The dentistry CT imaging CCD angle-adjusting device is characterized in that the CCD rack is in connection with the U-shaped rack joint through a horizontal angle adjusting mechanism which drives the CCD rack to rotate with a Z axis as a center, the CCD installing board is in connection with the CCD rack through a translation adjusting mechanism which drives the CCD installing board to move horizontally along an X axis, meanwhile, the CCD installing board is in connection with the CCD rack through a vertical angle adjusting mechanism which drives the CCD installing board to rotate with a Y axis as a center, the Z axis is perpendicular to the ground, the Y axis is perpendicular to a CCD receiving screen, and a space rectangular coordinate system is formed through the X axis, the Y axis and the Z axis. According to the dentistry CT imaging CCD angle-adjusting device, fine adjustments to a three dimensional angle and displacement of the CCD can be conducted, and therefore a connecting line between the central points of the CCD and an X-ray source is enabled to be accurately perpendicular to the CCD receiving screen and an emission mirror plane of the X-ray source, and the quality of sectional images is improved.
Description
Technical field
This utility model relates to a kind of dentistry CT imaging CCD angular adjustment apparatus.
Background technology
The 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 all is two dimensional image, there are 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 often be difficult to make a definite diagnosis.Traditional CT can provide three-dimensional information, but its radiological dose is large, expensive, to the lack of resolution of dental imaging, the application in stomatology is limited.Compare emerging dentistry CT(cone-beam with these stomatology image technologies) have a 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 about 0.5mm; And the resolving range of dentistry CT is 0.076-O.4mm at present.Find also that in clinical practice dentistry CT shows that the picture quality of the tiny anatomical structure such as tooth and periodontal tissue and maxillofacial bone bony structures is better than traditional CT, also is more suitable for the needs of clinical oral.
2. the scanning dose of dentistry CT is between 29-477uSv, and is relevant with the irradiation visual field (FOV) size that adopts.This dosage only is the 1.5%-23.8% of traditional CT dosage (about 2000uSv).If change scanning position (tilting such as chin) or use local protection device (such as the thyroid protector for collar), then dosage also can descend about 40%.At present, dentistry CT even can be with dosage control below conventional panoramic radiograph.
Existing dentistry CT formation comprises that mainly 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.X-ray source sends X ray when images acquired, and ray passes patient's head, projects to carry out imaging on the CCD.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 in the actual imaging process, the projected image that obtains like this is used for reconstruction just can obtain high-quality faultage image, otherwise will have influence on the faultage image after the reconstruction.Yet above-mentioned existing dentistry CT can only by the U-shaped hanger synchronously rough adjusting x-ray source and CCD with respect to the position of 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 can't guarantee accurately and reliably x-ray source and CCD causes the final faultage image quality that obtains not good perpendicular to CCD receiving screen and x-ray source emission minute surface.
Summary of the invention
This utility model purpose is: 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, guarantee in actual dentistry CT imaging process with this, behind the orientation angle of having determined x-ray source, can by to the adjustment of CCD angle so that the line of the central point of CCD and x-ray source accurately perpendicular to CCD receiving screen and x-ray source emission minute surface, thereby promote the faultage image quality.
The technical solution of the utility model is: a kind of dentistry CT imaging CCD angular adjustment apparatus, comprise the 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 that rotates by one and links to each other with the U-shaped hanger joint centered by Z axis, and ordering about its translational controlling mechanism along the X-axis translation by one, described CCD installing plate links to each other with the CCD hanger, while CCD installing plate also orders about its vertical angle governor motion that rotates by one and links to each other with the CCD hanger centered by Y-axis, wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z three axle Special composition rectangular coordinate systems.
Further, the actual preferred constructive form of the governor motion of level angle described in this utility model is as follows: it comprises fixing or one is located on the described U-shaped hanger joint and with the rotating member of Z axis as axis of rotation, fixing or one is located at CCD hanger top and is used for holding the rotation dimple of rotating member and is fixed on rotation dimple top being used for the vertically pressing plate of locking rotating member, be arranged with two level angles that are positioned at its axis of rotation both sides on the described rotating member and regulate block, and corresponding each level angle is regulated the equal spiral shell of block and is provided with a pair of level angle adjusting bolt on the described rotation dimple, and the every pair of level angle adjusting bolt is all coaxial to be arranged in opposite directions and clip described level angle and regulate block.
Further, the actual preferred constructive form of translational controlling mechanism described in this utility model is as follows: it comprises that horizontal helical is located at a pair of translational adjustment bolt on the CCD hanger and is located at the translational adjustment bumping post at CCD installing plate rear portion, and described two translational adjustment bolts are coaxial arranges and clip described translational adjustment bumping post in opposite directions.
Further, the actual preferred constructive form of the governor motion of vertical angle described in this utility model is as follows: it vertical angle that comprises that vertical 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 is regulated block, and described two vertical angle adjusting bolts are coaxial to be arranged in opposite directions and clip described vertical angle and regulate block.
Further, the thin optimized structure of the translational controlling mechanism in this utility model is as follows: the translational adjustment plate of fixing or be integrally formed with vertical layout on the described CCD hanger, described translational adjustment plate be provided with for the translational adjustment bumping post support into perforate, described two translational adjustment bolts are established from the horizontal spiral shell of the sidepiece of translational adjustment plate and are penetrated in the perforate, and clip described translational adjustment bumping post.
Further, the thin optimized structure of the vertical angle governor motion in this utility model is as follows: the up and down bolt installing plate of 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.
This utility model is when concrete the use, and the same with routine techniques, the 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 then.At first by regulate the U-shaped hanger guarantee CCD, x-ray source and be positioned between the two patient's implement for fixing skull substantially in line, then the position angle of x-ray source is implemented pre-determined bit, even if with carrying out fine tuning to the angle position of CCD by this device that this utility model provides.Wherein the level angle governor motion is mainly regulated CCD and is wound the anglec of rotation perpendicular to the Z axis on ground, and when need to prove 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 is then mainly regulated CCD and is wound deviation angle (adjustable angular range is very little) perpendicular to the Y-axis of its receiving screen, and translational controlling mechanism is then mainly regulated CCD along the displacement of X-axis.Described X, Y, Z axis Special composition rectangular coordinate system all are imaginary axis.
The utility model has the advantages that:
1. this dentistry CT imaging CCD angular adjustment apparatus that provides of this utility model, it can carry out fine adjustment to three-dimensional perspective and the displacement of CCD, and easy to adjust, guarantee in actual dentistry CT imaging process with this, behind the orientation angle of having determined x-ray source, can by to the adjustment of CCD angle so that the line of the central point of CCD and x-ray source accurately perpendicular to CCD receiving screen and x-ray source emission minute surface, thereby promote the faultage image quality.
2. this dentistry CT imaging CCD angular adjustment apparatus that provides of this utility model, it is simple in structure, and parts are few, assembling and easy to use, low cost of manufacture has higher practicality.
Description of drawings
Below in conjunction with drawings and Examples this utility model is further described:
Fig. 1 is structural front view of the present utility model (being assembled on the U-shaped hanger);
Fig. 2 is the left view (being assembled on the U-shaped hanger) of Fig. 1;
Fig. 3 is the right view (being assembled on the 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 this utility model perspective view.
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 is regulated block; 9, level angle adjusting bolt; 10, translational adjustment bolt; 11, translational adjustment bumping post; 12, vertical angle adjusting bolt; 13, vertical angle is regulated block; 14, translational adjustment plate; 15, perforate; 16, bolt installing plate; 17, U-shaped hanger.
The specific embodiment
Embodiment: in conjunction with Fig. 1-shown in Figure 6, this dentistry CT imaging CCD angular adjustment apparatus that this utility model provides, 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 that rotates by one and links to each other with U-shaped hanger joint 1 centered by Z axis, and ordering about its translational controlling mechanism along the X-axis translation by one, described CCD installing plate 3 links to each other with CCD hanger 2, while CCD installing plate 3 also orders about its vertical angle governor motion that rotates by one and links to each other with CCD hanger 2 centered by Y-axis, wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z three axle Special composition rectangular coordinate systems.
Specifically in conjunction with Fig. 1-shown in Figure 6, being constructed as follows of the governor motion of level angle described in the present embodiment: its have that one is located on the described U-shaped hanger joint 1 and with Z axis as the rotating member 5 of axis of rotation, be bolted on CCD hanger 2 tops be used for holding the rotation dimple 6 of rotating member 5 and be bolted on rotation dimple 6 tops be used for vertical locking rotating member 5 about two block pressur plates 7, specifically see Fig. 4 and shown in Figure 6.Described rotating member 5 bottom symmetries are integrally formed with two level angles that are positioned at its axis of rotation both sides and regulate block 8, and corresponding each level angle adjusting block 8 equal spiral shell are provided with a pair of level angle adjusting bolt 9 on the described rotation dimple 6, specifically as shown in Figure 1; The every pair of level angle adjusting bolt 9 is all coaxial to be arranged in opposite directions and clips described level angle and regulate block 8, specifically in conjunction with Fig. 4, Fig. 5 and shown in Figure 6.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 5 and shown in Figure 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 the CCD hanger 2 and translational adjustment plate 14, the horizontal helical vertically arranged are located at a pair of translational adjustment bolt 10 on the 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 are established from the coaxial in opposite directions spiral shell of the sidepiece of translational adjustment plate 14 and are penetrated in the perforate 15, and clip described translational adjustment bumping post 11, specifically see Fig. 1 and shown in Figure 6.
In conjunction with Fig. 1, Fig. 2 and shown in Figure 6, being constructed as follows of the governor motion of vertical angle described in the present embodiment: its vertical angle that has a pair of vertical angle adjusting bolt 12 that vertical spiral shell is located at CCD installing plate 3 rear portions and be located at CCD hanger 2 sidepieces is regulated block 13, and described two vertical angle adjusting bolts 12 are coaxial to be arranged in opposite directions and clip 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 up and down bolt installing plate 16 of two lateral arrangement, and described two vertical angle adjusting bolts 12 respectively spiral shell are located on described two bolt installing plates 16; And the adjusting of vertical angle described in the present embodiment block 13 is fixed by screws in translational adjustment plate 14 sidepieces on the CCD hanger 2.
In conjunction with Fig. 1-shown in Figure 3, this utility model is when concrete the use, and the same with routine techniques, U-shaped hanger joint 1 is bolted to U-shaped hanger 17(figure and only draws part) end, the other end of U-shaped hanger 17 is fixing x-ray source (not shown) then.At first by regulate U-shaped hanger 17 guarantee CCD4, x-ray source and be positioned between the two patient's implement for fixing skull substantially in line, then the position angle of x-ray source is implemented pre-determined bit, even if with carrying out fine tuning to the angle position of CCD4 by this device that this utility model provides.Wherein the level angle governor motion is mainly regulated CCD4 and is wound the anglec of rotation perpendicular to the Z axis on ground, and when need to prove 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 is then mainly regulated CCD4 and is wound deviation angle (adjustable angular range is very little) perpendicular to the Y-axis of its receiving screen, and translational controlling mechanism is then mainly regulated CCD4 along the displacement of X-axis.Described X, Y, Z axis Special composition rectangular coordinate system all are imaginary axis.
Certainly above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the people who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All modifications of doing according to the spirit of this utility model main technical schemes all should be encompassed within the protection domain of the present utility model.
Claims (6)
1. 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 that rotates by one and links to each other with U-shaped hanger joint (1) centered by Z axis, and ordering about its translational controlling mechanism along the X-axis translation by one, described CCD installing plate (3) links to each other with CCD hanger (2), while CCD installing plate (3) also orders about its vertical angle governor motion that rotates by one and links to each other with CCD hanger (2) centered by Y-axis, wherein said Z axis is perpendicular to ground, Y-axis is perpendicular to CCD receiving screen, X, Y, Z three 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 fixing or one is located on the described U-shaped hanger joint (1) and with 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 being used for the vertically pressing plate (7) of locking rotating member (5), be arranged with two level angles that are positioned at its axis of rotation both sides on the described rotating member (5) and regulate block (8), and upper corresponding each level angle of described rotation dimple (6) regulate block (8) all spiral shell be provided with a pair of level angle adjusting bolt (9), every pair of level angle adjusting bolt (9) is all coaxial to be arranged in opposite directions and clips described level angle and regulate 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 the CCD hanger (2) and is located at the translational adjustment bumping post (11) at CCD installing plate (3) rear portion, described two translational adjustment bolts (10) are coaxial arranges and clips described translational adjustment bumping post (11) in opposite directions.
4. according to claim 1 or 3 described dentistry CT imaging CCD angular adjustment apparatus, it is characterized in that the vertical angle that described vertical angle governor motion comprises that vertical 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) are coaxial to be arranged in opposite directions and clips described vertical angle and regulate 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 vertical layout of described CCD hanger (2), described translational adjustment plate (14) be provided with for the translational adjustment bumping post (11) support into perforate (15), described two translational adjustment bolts (10) are established from the horizontal spiral shell of sidepiece of translational adjustment plate (14) and are penetrated in the perforate (15), 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 up and down bolt installing plate (16) of 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 |
|---|---|---|---|
| CN 201220401582 CN202751408U (en) | 2012-08-14 | 2012-08-14 | Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220401582 CN202751408U (en) | 2012-08-14 | 2012-08-14 | Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN202751408U true CN202751408U (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220401582 Withdrawn - After Issue CN202751408U (en) | 2012-08-14 | 2012-08-14 | Dentistry computed tomography (CT) imaging charge-coupled device (CCD) angle-adjusting device |
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| Country | Link |
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| CN (1) | CN202751408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772221A (en) * | 2012-08-14 | 2012-11-14 | 东南大学 | CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging |
| CN107137104A (en) * | 2017-06-23 | 2017-09-08 | 合肥中科离子医学技术装备有限公司 | A kind of X-ray tube adjustment mechanism being imaged for CBCT medical 3 Ds |
-
2012
- 2012-08-14 CN CN 201220401582 patent/CN202751408U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102772221A (en) * | 2012-08-14 | 2012-11-14 | 东南大学 | CCD (charge coupled device) angle adjusting device for dentistry CT (Computed Tomography) imaging |
| CN107137104A (en) * | 2017-06-23 | 2017-09-08 | 合肥中科离子医学技术装备有限公司 | A kind of X-ray tube adjustment mechanism being imaged for CBCT medical 3 Ds |
| CN107137104B (en) * | 2017-06-23 | 2018-05-11 | 合肥中科离子医学技术装备有限公司 | A kind of X-ray tube adjustment mechanism for the imaging of CBCT medical 3 Ds |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20140226 |
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| RGAV | Abandon patent right to avoid regrant |