CN201324247Y - Dental X-ray three-dimensional image system - Google Patents
Dental X-ray three-dimensional image system Download PDFInfo
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- CN201324247Y CN201324247Y CNU2008202039913U CN200820203991U CN201324247Y CN 201324247 Y CN201324247 Y CN 201324247Y CN U2008202039913 U CNU2008202039913 U CN U2008202039913U CN 200820203991 U CN200820203991 U CN 200820203991U CN 201324247 Y CN201324247 Y CN 201324247Y
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Abstract
The utility model discloses a dental X-ray three-dimensional image system which aims to re-build a three-dimensional tooth model image with a two-dimensional panoramic dental X-ray image. The system comprises a host gantry frame, an X-ray generator nose, an X-ray probe, a laser locating device, additional marking, a seat, a seat lifter, a seat rotating device, an image processing computer and an operation and display interface. The dental X-ray three-dimensional image system is provided with a conventional dental operation digital panoramic camera which is the main part, realizes the best conical bundle image three-dimensional re-building by the integrating optical laser locating device, and is characterized by high safety, high precision, convenient operation, clear pictures, practicality, durability and the like.
Description
Technical field
This utility model relates to the X line image system in the medical field.
Background technology
The computer assisted surgery treatment has been widely used in medically, in the clinical dental operation, also is badly in need of spatial three dimensions image location supplementary means.As the orthodontic in the dental operation, plantation, tooth body, periodontal, decorative sursery, dental aesthetics, teaching and scientific research or the like, all need be by computer image auxiliary, realize the planning and the guiding of dental operation, and improve the quality of operation, reduce the risk of operative treatment simultaneously with this.
The dentistry of reality, be to take the photograph sheet with two-dimentional X line dentistry to instruct the planar structure of tooth operation comparatively general, in the Dental Implant process of complexity, the doctor often need use the compound 2D/3D image of tooth, more need to rely on very important tooth bone density data and structure three-dimensional image, guarantee the success rate of complicated operation.The problem of reality is that conventional dental X line photographic apparatus and dental X-ray panoramic camera all can only provide two-dimentional tooth structure image, and the three dimensional structure image of tooth can not be provided.Therefore, in the clinical operation treatment, reality is badly in need of a kind of novel dental X-ray three-dimensional filming system, and keeps miniaturization characteristics easy to operate and compact to design.
The utility model content
This utility model provides a kind of dental X-ray three-dimensional filming system, and purpose is the tooth model image that reconstructs 3 D stereo with two-dimensional panoramic dental X-ray image.
Above-mentioned purpose is realized by following technical scheme:
A kind of dental X-ray three-dimensional filming system is characterized in that: comprise main frame gantry stand, x-ray generator head, X line detector, laser locating apparatus, additional marking, seat, seat-riser, seat rotating device, image processing computer, operation and display interface; X-ray generator head and X line detector relatively are arranged on two support arms of main frame gantry stand, the position of laser locating apparatus makes the laser and the X wire harness central lines of its generation, additional marking is arranged in the X wire harness zone, seat is arranged between two support arms of main frame gantry stand, the height of seat-riser control seat, the anglec of rotation of seat rotating device control seat, but the image processing computer is connected with X line detector data communication ground, but operation and display interface are connected with image processing computer data communication ground.
This utility model dental X-ray three-dimensional filming system is based on the digitized panoramic camera of conventional dental operation, integrate the optical lasers positioner again, carry out best tapered bundle image three-dimensional then and rebuild, can be used as the become more meticulous special-purpose image documentation equipment of Clinics and Practices of dentistry.Design of the present utility model possesses characteristics such as clear fine and smooth, the practicality of high security, pinpoint accuracy, easy and simple to handle, image and ruggedness are good, and can carry out real-time personalized soft, HardwareUpgring according to clinical needs.
Description of drawings
The composition sketch map of the dental X-ray three-dimensional filming system that Fig. 1 provides for this utility model.
The specific embodiment
As shown in Figure 1, the dental X-ray three-dimensional filming system that provides of present embodiment comprises: main frame gantry stand 1, x-ray generator head 2, X line detector 3, laser locating apparatus, additional marking 5, seat 6, seat-riser 7, seat rotating device 8, image processing computer 9, operation and display interface 10.Main frame gantry stand 1 is made of base 11, two support arms 12,13 and crossbeam 14, and x-ray generator head 2 and X line detector 3 relatively are arranged on two support arms 12,13 of main frame gantry stand.The requirement of the position of laser locating apparatus is to make the laser of its generation and X wire harness central lines, laser locating apparatus comprises lasing light emitter 41 and reflecting mechanism 42 in the present embodiment, and the laser that lasing light emitter 41 sends keeps and X wire harness central lines after trigger mechanism 42 reflections.Seat 6 is arranged between two support arms 12,13 of main frame gantry stand 1, and seat 6 has portion of leaning against 61 and head rest portion 62, leans against portion 61 and is provided with human body bandage 63, and head rest portion 62 is provided with head strap 64.The height of seat-riser 7 control seats 6, the anglec of rotation of seat rotating device 8 control seats, the anglec of rotation of this seat rotating device 8 is greater than 180 degree.But image processing computer 9 is connected with X line detector 3 data communications ground, but operation and display interface 10 are connected with image processing computer 9 data communications ground.In the present embodiment, described additional marking 5 is some steel balls, is arranged on the head strap 64, and certainly additional marking 5 also can be other label, also can be arranged in the X wire harness zone other position, in the head rest portion 62 as seat.
The laser locating apparatus emitted laser by the measurement of laser, just can be determined the counterrotating angle of X line source as the scale of X wire harness centrage, makes each captured bidimensional image have angle one to one; By additional marking is set, determine a standard physical size, each picture can or be contracted to unified size according to this additional marking amplification.Realize above 2 points, just possessed the precondition of synthetic 3-dimensional image.
Based on system shown in Figure 1, present embodiment also provides a kind of three-D imaging method of dental X-ray three-dimensional filming system, it is characterized in that, comprises the steps:
(1), tooth is carried out the X line photography of panorama by rotary seat; Wherein, utilize laser locating apparatus to measure, and calculate the gyrobearing of X line source, cooperate the image collection card taking, obtain the X line source projection image of all directions;
(2) carry out the image pre-treatment, specifically refer to: utilize the bilinear interpolation mode, the GTG value of additional marking is replaced with neighbor point GTG value;
About step (2), be noted that: Oldendorf (name) in utility model in 1961 back projection's method, Saniner (name) improves back projection's method in the mode of linear interpolation afterwards, can reduce by 50% multiplication computation amount like this, but can slightly increase the additional calculation amount, then directly calculate thunder in the mode of fourier transform steps on conversion to Salvatore (name), and interpolation goes out the numerical value in the fourier space, and calculate GTG value on each two-dimentional tangent plane, obtain whole three-dimensional GTG value information through storehouse at last.As from the foregoing, step (2) can realize by prior art.
(3) utilize the image processing computer to carry out 3D image reconstruction, specifically refer to: use the FDK algorithm, cooperate general parallel projection mode, push back each pixel gray level value of the original, finish the image reconstruction of tooth, carry out the 3 d surface model of tooth and draw.
Wherein, the FDK algorithm is that the algorithm at cone-beam projections that proposed by people such as Feldkamp in 1984 is (with Feldkamp, Davis, people such as Kress name), this algorithm is promoted by the fan-shaped projection algorithm of Horm (name) originally, afterwards according to fan-shaped backprojection reconstruction, Zavis, Wang and Concepcion (name) have proposed the correction to fan-shaped projection, and convert to can be for the parallel projection data of utilizing.So, just, can express the geometrical relationship of whole cone-beam projections.
This utility model dental X-ray three-dimensional filming system is based on the digitized panoramic camera of conventional dental operation, integrate the optical lasers positioner again, carrying out best tapered bundle image three-dimensional then rebuilds, can be used as the become more meticulous special-purpose image documentation equipment of Clinics and Practices of dentistry, this utility model can also be applied in the panoramic shooting of head, head and tooth certainly.Design of the present utility model possesses characteristics such as clear fine and smooth, the practicality of high security, pinpoint accuracy, easy and simple to handle, image and ruggedness are good, and can carry out real-time personalized soft, HardwareUpgring according to clinical needs.
The more conventional CT scan image of the use cost of this utility model dental X-ray three-dimensional filming system is low, and the dental bed osseous tissue density analysis that conventional CT machine do not had and the superior function of therapeutic scheme planned can be provided.This is avoided patient's Dental Implant to come off to improving the success rate of complex species dental implant surgical, and reduces the health care expense, can both play the effect of extremely long-pending and reality.
Claims (7)
1. a dental X-ray three-dimensional filming system is characterized in that: comprise main frame gantry stand, x-ray generator head, X line detector, laser locating apparatus, additional marking, seat, seat-riser, seat rotating device, image processing computer, operation and display interface; X-ray generator head and X line detector relatively are arranged on two support arms of main frame gantry stand, the position of laser locating apparatus makes the laser and the X wire harness central lines of its generation, described additional marking is arranged in the X wire harness zone, seat is arranged between two support arms of main frame gantry stand, the height of seat-riser control seat, the anglec of rotation of seat rotating device control seat, but the image processing computer is connected with X line detector data communication ground, but operation and display interface are connected with image processing computer data communication ground.
2. dental X-ray three-dimensional filming system according to claim 1 is characterized in that, described seat has the portion of leaning against and head rest portion, and the portion of leaning against is provided with the human body bandage, and head rest portion is provided with head strap.
3. dental X-ray three-dimensional filming system according to claim 2 is characterized in that, described specific additional marking is arranged on the head strap.
4. dental X-ray three-dimensional filming system according to claim 2 is characterized in that, described specific additional marking is arranged on the head of seat according in the portion.
5. according to claim 3 or 4 described dental X-ray three-dimensional filming systems, it is characterized in that described specific additional marking is some steel balls.
6. dental X-ray three-dimensional filming system according to claim 1 is characterized in that described laser locating apparatus comprises lasing light emitter and reflecting mechanism, and the laser that lasing light emitter sends keeps and X wire harness central lines after the trigger mechanism reflection.
7. dental X-ray three-dimensional filming system according to claim 1 is characterized in that, the anglec of rotation of described seat rotating device is greater than 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039913U CN201324247Y (en) | 2008-11-20 | 2008-11-20 | Dental X-ray three-dimensional image system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202039913U CN201324247Y (en) | 2008-11-20 | 2008-11-20 | Dental X-ray three-dimensional image system |
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| Publication Number | Publication Date |
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| CN201324247Y true CN201324247Y (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008202039913U Expired - Fee Related CN201324247Y (en) | 2008-11-20 | 2008-11-20 | Dental X-ray three-dimensional image system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893583A (en) * | 2010-04-27 | 2010-11-24 | 丹东奥龙射线仪器有限公司 | Mechanical transmission device for cylindrical refractory material X-ray detection machine |
| CN111419260A (en) * | 2020-04-09 | 2020-07-17 | 上海汉缔医疗设备有限公司 | CBCT equipment with digital X-ray image in mouth |
| CN111437136A (en) * | 2019-01-17 | 2020-07-24 | 湖南太阳龙医疗科技有限公司 | Improved multifunctional medical care workstation |
| CN112932417A (en) * | 2019-11-26 | 2021-06-11 | 张汉威 | Health status measuring equipment |
-
2008
- 2008-11-20 CN CNU2008202039913U patent/CN201324247Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893583A (en) * | 2010-04-27 | 2010-11-24 | 丹东奥龙射线仪器有限公司 | Mechanical transmission device for cylindrical refractory material X-ray detection machine |
| CN111437136A (en) * | 2019-01-17 | 2020-07-24 | 湖南太阳龙医疗科技有限公司 | Improved multifunctional medical care workstation |
| CN112932417A (en) * | 2019-11-26 | 2021-06-11 | 张汉威 | Health status measuring equipment |
| CN111419260A (en) * | 2020-04-09 | 2020-07-17 | 上海汉缔医疗设备有限公司 | CBCT equipment with digital X-ray image in mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091014 Termination date: 20101120 |