CN201642055U - Direct digital radiography (DDR) machine for breast - Google Patents
Direct digital radiography (DDR) machine for breast Download PDFInfo
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- CN201642055U CN201642055U CN2010201160486U CN201020116048U CN201642055U CN 201642055 U CN201642055 U CN 201642055U CN 2010201160486 U CN2010201160486 U CN 2010201160486U CN 201020116048 U CN201020116048 U CN 201020116048U CN 201642055 U CN201642055 U CN 201642055U
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Abstract
The utility model discloses a direct digital radiography (DDR) machine for breasts, which comprises an X-ray tube (1) for emitting an X-ray (2), a digital camera (5), a breast compressor (3) and an image plate (4), wherein the breast compressor (3) and an image plate (4) are arranged correspondingly to each other in the vertical direction, the image plate (4) is fixedly connected with a stand (6), a first front reflecting mirror (7) fixedly connected with the stand (6) is arranged below the image plate (4), a second front reflecting mirror (8) connected with the stand (6) in a sliding manner is arranged on the stand (6) and is in parallel to the first front reflecting mirror (7), the image formation surfaces of the first front reflecting mirror (7) and the second front reflecting mirror (8) are opposite to each other, and the digital camera (5), facing the image formation surface of the second front reflecting mirror (8), is fixedly connected with the second front reflecting mirror (8). The DDR machine for breasts has the characteristics of excellent image definition and benefit for full imaging of the root of the breast tissue.
Description
Technical field
This utility model relates to a kind of DDR breast X-ray machine.
Background technology
Medical DR (Digital Radiography) is that digital X-ray is taken the photograph sheet, along with development in science and technology, and the particularly development of computer and novel sensitive material, traditional X ray is taken the photograph sheet (film simulation image) and is progressively substituted by digital X-ray shooting (DR).DR compares with former X-ray film has lot of advantages, and the DR major advantage has: a. improves picture quality by transferring window (WW, WL), sharpening, image processing software technology such as level and smooth, helps that pathological changes is found and diagnosis; B. can free cutting, make image meet the diagnosis requirement; C. favourable preservation; D. can print by digital laser, the film of printing is given patient, makes things convenient for patient to seek medical advice, and loss can be duplicated; E. digital picture can transmit on the net, accomplishes advantages such as remote expert consultation.
Medical DR can be divided into two classes at present, and---direct-type (promptly plate, as to divide non-crystalline silicon/amorphous selenium)---directly transfers radioscopic image to digital picture; Indirect type-x-ray bombardment digital picture that (luminous plaque commonly used has cesium iodide, gadolinium oxysulfide etc.) made a video recording by digital camera (CCD or CMOS) on luminous plaque.Because the development of CCD/CMOS digital camera technology, valid pixel has broken through 20,000,000; Image spatial resolution, can compare with DR, development trend further improves, the picture quality of indirect type DDR can surpass plate, this high-quality indirect-type DDR is specially adapted to mammary gland and takes the photograph sheet, because image resolution ratio can be brought up to more than the 10LP/mm, to the generaI investigation and the early diagnosis of breast carcinoma, the early treatment has very big value.
We know, development along with society, the change of people's living habit (degradation under operating pressure rising, artificial abortion, the breastfeeding rate), woman mammary gland disease, particularly the sickness rate of breast carcinoma is in rising trend, early diagnosis to breast carcinoma is cured in early days, is the unique method of decline breast carcinoma mortality rate.
Domesticly do not see that as yet DR (plate) or DDR (indirect-type) breast X-ray machine product are arranged.
External DR breast X-ray machine main manufacturer has U.S. GE, U.S.-China's mutual benefit, Siemens and Italy, Finland etc.Their DR all adopts non-crystalline silicon or amorphous selenium (plate).The image resolution ratio of this plate DR is decided by the size of the pixel cell of non-crystalline silicon/amorphous selenium, high-grade pixel cell can be accomplished 70 μ m, spatial resolution can reach 7LP/mm, non-crystalline silicon/amorphous selenium flat-bed size is exactly the visual field of image (FOV), the big pixel of platen area is many, and the platen area small pixel is few; Image spatial resolution is that constant (image of different sizes is with " shading " or image cutting piecemeal) do not exist the technical problem that the region of interest zoom is improved spatial resolution.
Because non-crystalline silicon/amorphous selenium flat-bed complex manufacturing technology costs an arm and a leg, general separate unit DR breast X-ray machine price is up to hundreds thousand of U.S. dollars; Therefore can't large-scale promotion use.
Existing indirect-type breast X-ray machine comprises X-ray tube 1 and corresponding up and down mammary gland compressor 3, the image plate 4 that is provided with of launching X ray 2 as shown in Figure 1, and image plate 4 can be made with cesium iodide or gadolinium oxysulfide; Digital camera 5 over against image plate 4 is set below image plate 4.During actual the use, tested breast 100 is placed on the image plate 4, regulates mammary gland compressor 3, thus make as far as possible tested breast 100 be crushed, ironed.Digital camera 5 is responsible for taking X ray 2 and is made tested breast 100 formed image on image plate 4, forms required digital picture at last.It exists following defective in actual use:
Because the diversity of human body, it is more that the size of breast also differs; In order to possess versatility, existing indirect-type breast X-ray machine is to design at the big breast that may exist (huge breast); When detecting breast, be divided into following 3 kinds of situations with this kind indirect-type breast X-ray machine:
1), when tested breast 100 is huge when breast, shooting results is shown in Fig. 2 a; At this moment, tested breast 100 occupies most of position of image;
2), when tested breast 100 is conventional size, shooting results is shown in Fig. 2 b; At this moment, tested breast 100 only occupies the sub-fraction position of image;
3), when tested breast 100 is micromazia, shooting results is shown in Fig. 2 c, at this moment, tested breast 100 only occupies very little a part of position of image;
Above-mentioned the 2nd kind of situation and the 3rd kind of situation all cause the major part of image well not utilized.In order to make image well be utilized (thereby promoting clearness), people regulate the imaging area of tested breast 100 in image by regulating camera lens change focal length.But it can cause following defective:
1, above-mentioned common zoom is to be the size that the center changes image with the optical center, so can change equably around the image, can cause the disappearance of breast tissue root in image this moment, is difficult to when carrying out zoom promptly guarantee that the breast tissue root is within the visual field.And we all know: the mammary gland tissue root is one of main detection foundation of cystic hyperplasia of breast; Therefore above-mentioned common zoom can cause doctor's mistaken diagnosis.
Appear in the image if wish the breast tissue root, then also need to rely on the relative position relation of shooting experience artificial adjusting digital camera 5 and image plate 4; So not only make operation become very complicated, also be difficult to strict guarantee breast tissue root not lacking in image.
2, most of zoom lens aperture slot when focal length changes can change, and aperture slot has tailed off when by zoom image at a distance being furthered, and time of exposure is elongated, and the irradiation time of X ray also needs lengthening, and this is disadvantageous to patient.
The utility model content
The technical problems to be solved in the utility model provides that a kind of image definition is good, the complete imaging that can guarantee the mammary gland tissue root, be applicable to the DDR breast X-ray machines of different big micromazias.
In order to solve the problems of the technologies described above, this utility model provides a kind of DDR breast X-ray machine, comprise X-ray tube, digital camera and corresponding up and down mammary gland compressor and the image plate that is provided with of launching X ray, image plate and frame platform are fixedly linked, below image plate, be provided with the frame platform be fixedly linked first before anti-mirror, on the frame platform, also be provided with the frame platform slide link to each other second before anti-mirror, to be parallel to the imaging minute surface of anti-mirror before first and the first preceding anti-mirror and the second preceding anti-mirror relative in twos for anti-mirror before second; The digital camera and the second preceding anti-mirror over against the second preceding anti-mirror imaging minute surface are fixedly linked.
Improvement as DDR breast X-ray machine of the present utility model: the leading edge of the upper limb of anti-mirror and image plate flushes in vertical direction before first; The upper limb of the upper limb of anti-mirror and the first preceding anti-mirror flushes in the horizontal direction before second.
Further improvement as DDR breast X-ray machine of the present utility model: become 40～50 ° angle between anti-mirror and the image plate before first.
Further improvement as DDR breast X-ray machine of the present utility model: on the frame platform, be provided with the zoom shifting axle, the line of the upper limb of the upper limb that the zoom shifting axle is parallel to anti-mirror before second and the first preceding anti-mirror; Anti-mirror slides with the zoom shifting axle and links to each other before second.
The shooting principle of DDR breast X-ray machine of the present utility model is as follows:
X-ray tube emission is suitable for the X ray of breast tissue, and tested breast tissue is projected to image plate, and image plate can show the radioscopic image of this breast tissue of hardwood, and at this moment, the breast tissue root is positioned at the leading edge of image plate.Simultaneously, the mirror phase images of a visible hardwood image plate in the anti-mirror before first, before first in the anti-mirror mirror breast tissue root of image be positioned at the upper limb of anti-mirror before first; Meanwhile, also show the mirror phase images of anti-mirror before the hardwood first before second in the anti-mirror, before second in the anti-mirror mirror breast tissue root of image be positioned at the upper limb of anti-mirror before second.Take the photograph like this the breast photo, as main detect according to one of the breast tissue root be positioned at the leading edge of photo all the time, guarantee that the breast tissue root all shows; Thereby be convenient to doctor's correct diagnosis.
The zoom principle of DDR breast X-ray machine of the present utility model is as follows:
The second preceding anti-mirror and digital camera integral body are moved along the zoom shifting axle, thereby changed the camera lens of digital camera and the actual range of image plate, reach the purpose of change field of view size.We know from above-mentioned shooting principle: the breast tissue root is positioned at the leading edge of image all the time, therefore can not cause the disappearance of breast tissue root in image.When taking micromazia, by the size (anti-mirror is near the first preceding anti-mirror before making second) of change field of view, the white space of the no breast tissue that just is positioned at breast two sides of deletion and the white space that is positioned at the no breast tissue of breast over top.When taking huge breast, the size (anti-mirror is away from the first preceding anti-mirror before making second) by the change field of view still can make whole breast be embodied in image.
Certainly, it is enough big that image plate is wanted, and promptly whole huge breast can be placed on the image plate.
Adopt DDR breast X-ray function of the present utility model to improve the image definition of breast photo, 240mmX180mm is an example with the conventional visual field (FOV), the CCD pixel is 1,500 ten thousand o'clock, high spatial resolution can reach 6LP/mm (experimental data), during zoom rearward vision 160mmX120mm, take the photograph photo, spatial resolution can be brought up to 10LP/mm (image is more little, and resolution is high more).This technical specification expensive plate (non-crystalline silicon/amorphous selenium) mammary gland DR---X-ray production apparatus that exceeded the price.
DDR breast X-ray machine of the present utility model, simple in structure, with low cost, easy to operate, be suitable for large-scale production and use, national health care expense can descend.The image definition height of gained breast photo can guarantee the integrity of breast tissue root in image, helps the doctor and makes right judgement.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is the actual working state sketch map of existing indirect-type breast X-ray machine;
Fig. 2 is the shooting results sketch map of Fig. 1;
Among Fig. 2, a is the shooting results of huge breast, and b is the shooting results of conventional breast, and c is the shooting results of micromazia;
Fig. 3 is the structural representation of DDR breast X-ray machine of the present utility model;
Fig. 4 is the actual working state sketch map of Fig. 3;
Fig. 5 is the shooting results sketch map of Fig. 4.
The specific embodiment
Fig. 3 has provided a kind of DDR breast X-ray machine, comprises X-ray tube 1 and corresponding up and down mammary gland compressor 3 and the image plate 4 that is provided with of launching X ray 2, and image plate 4 is fixed on the frame platform 6; DDR breast X-ray machine also comprises the reflection unit of being made up of the parallel double illuminator; The reflection unit that this parallel double illuminator is formed by be parallel to each other and imaging minute surface facing each other first before before the anti-mirror 7 and second anti-mirror 8 form.The upper limb 71 of the upper limb 81 of anti-mirror 8 and the first preceding anti-mirror 7 flushes in the horizontal direction before second.The anti-mirror 7 and the second preceding anti-mirror 8 are the preceding anti-mirror of high reflecting rate before first.
Before below image plate 4, being provided with first before the anti-mirror 7, the first anti-mirrors 7 be 45 ° with angle between the image plate 4, the leading edge 41 of the upper limb 71 of anti-mirror 7 and image plate 4 flushes in vertical direction before first.During actual photographed, breast 100 to be measured is that the leading edge 41 from image plate 4 enters image plate 4, and promptly the breast tissue root is close to the leading edge 41 of image plate 4.This first preceding anti-mirror 7 is fixedly linked with frame platform 6.On frame platform 6, be provided with zoom shifting axle 9, the line of the upper limb 71 of the upper limb 81 that zoom shifting axle 9 is parallel to anti-mirror 8 before second and the first preceding anti-mirror 7.Anti-mirror 8 before on support 61, fixedly installing second, slide along zoom shifting axle 9 in the top of support 61, and the bottom of support 61 and pedestal 62 are fixedly linked, and digital camera 5 also is fixedly linked with pedestal 62; Therefore, digital camera 5 has formed the integral body that can move along zoom shifting axle 9 with anti-mirror 8 before second, thereby before having realized second anti-mirror 8 links to each other with the slip of frame platform 6.Therefore in whole moving process, before first before the anti-mirror 7 and second anti-mirror 8 remain be parallel to each other, the imaging minute surface is relative in twos and second before the upper limb 71 of the upper limb 81 of anti-mirror 8 and the first preceding anti-mirror 7 flush in the horizontal direction.
The size that is installed in the preceding anti-mirror 7 of first on the frame platform 6 must guarantee: entire image plate 4 can be presented in the first preceding anti-mirror 7.In like manner, the size of the second preceding anti-mirror 8 must guarantee: no matter take huge breast or micromazia, entire image plate 4 can be presented in the second preceding anti-mirror 8.
Before DDR breast X-ray machine of the present utility model dispatches from the factory, adjust the camera lens of digital camera 5 and the position distance between the second preceding anti-mirror 8 in advance, thereby guarantee the actual size for object on the image plate 4 of digital camera 5 shooting gained.Later on just keep relatively-stationary state between the anti-mirror 8 before the digital camera 5 and second, promptly anti-mirror 8 can only move together before the digital camera 5 and second, the change that anti-mirror 8 each other can occurrence positions before the digital camera 5 and second.
DDR breast X-ray machine actual working state of the present utility model as shown in Figure 4, concrete work process is as follows:
1, make tested breast 100 enter image plate 4 from the leading edge 41 of image plate 4, promptly the breast tissue root is close to the leading edge 41 of image plate 4; Regulate mammary gland compressor 3, make tested breast 100 be crushed as much as possible, ironed.
2, open X-ray tube 1, the X ray 2 that X-ray tube 1 is sent makes the imaging on image plate 4 of tested breast 100; Be the radioscopic image that image plate 4 shows the tested breast 100 of hardwoods, at this moment, the breast tissue root is positioned at the leading edge 41 of image plate 4.Simultaneously, the mirror phase images of a visible hardwood image plate 4 in the anti-mirror 7 before first, before first in anti-mirror 7 mirrors breast tissue root of image be positioned at the upper limb 71 of anti-mirror 7 before first; Meanwhile, also show the mirror phase images of anti-mirror 7 before the hardwood first before second in the anti-mirror 8, before second in anti-mirror 8 mirrors breast tissue root of image be positioned at the upper limb 81 of anti-mirror before second.Take the photograph like this breast photo (as shown in Figure 5), as main detect according to one of breast root organize the leading edge that is positioned at photo all the time, guarantee all demonstrations of breast root tissue; Thereby be convenient to doctor's correct diagnosis.And tested breast 100 occupies most of position of image, thereby guarantees the definition of image.
Generally speaking, the distance between the anti-mirror 7 is to determine at the tested breast 100 of conventional size before the second preceding anti-mirror 8 and first.When taking huge breast with the DDR breast X-ray machine of this conventional spacing distance, can cause huge breast not appear at fully in the image, at this moment, need to increase the distance between the second preceding anti-mirror 8 and the first preceding anti-mirror 7, promptly in Fig. 4, the second preceding anti-mirror 8 is moved to the left together with digital camera 5, when whole tested breast 100 as huge breast all can be seen in the camera lens of digital camera 5 (when tested breast 100 occupies most of area of anti-mirror 8 before second), anti-mirror 8 is together with digital camera 5 before stopping to move second; Take the photograph like this huge newborn photo also as shown in Figure 5.
When taking micromazia with the DDR breast X-ray machine of this conventional spacing distance, tested breast 100 only occupies very little a part of position (shown in Fig. 2 c) of image.At this moment, need reduce the distance between the second preceding anti-mirror 8 and the first preceding anti-mirror 7, promptly in Fig. 4, the second preceding anti-mirror 8 is moved right together with digital camera 5, when whole tested breast 100 as micromazia occupies most of camera lens of digital camera 5 (when tested breast 100 occupies most of area of anti-mirror 8 before second), anti-mirror 8 is together with digital camera 5 before stopping to move second; Take the photograph like this the micromazia photo also as shown in Figure 5.
In sum, when adopting DDR breast X-ray machine of the present utility model no matter to take the breast of conventional size, huge breast or micromazia, organize the leading edge that is positioned at photo all the time, guarantee that the breast root tissue all shows as the main breast root that detects one of foundation; Thereby be convenient to doctor's correct diagnosis.And tested breast 100 occupies most of position of image all the time, thereby guarantees the definition of image.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present utility model.Obviously, this utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of this utility model all should be thought protection domain of the present utility model.
Claims (4)
1. DDR breast X-ray machine, the X-ray tube (1) that comprises emission X ray (2), digital camera (5) and corresponding up and down mammary gland compressor (3) and the image plate (4) that is provided with, it is characterized in that: described image plate (4) is fixedly linked with frame platform (6), the below of image plate (4) be provided with frame platform (6) be fixedly linked first before anti-mirror (7), on frame platform (6), also be provided with frame platform (6) slide link to each other second before anti-mirror (8), the described second preceding anti-mirror (8) is parallel to the first preceding anti-mirror (7), and the imaging minute surface of the anti-mirror (7) and the second preceding anti-mirror (8) is relative in twos before first; Digital camera (5) over against second preceding anti-mirror (8) the imaging minute surface is fixedly linked with the second preceding anti-mirror (8).
2. DDR breast X-ray machine according to claim 1 is characterized in that: the leading edge (41) of the upper limb (71) of anti-mirror (7) and image plate (4) flushes in vertical direction before described first; Before second before the upper limb (81) and first of anti-mirror (8) the upper limb (71) of anti-mirror (7) flush in the horizontal direction.
3. DDR breast X-ray machine according to claim 2 is characterized in that: become 40～50 ° angle between anti-mirror (7) and the image plate (4) before described first.
4. DDR breast X-ray machine according to claim 3, it is characterized in that: be provided with zoom shifting axle (9) on frame platform (6), described zoom shifting axle (9) is parallel to the line of the upper limb (71) of anti-mirror (7) before the upper limb (81) and first of anti-mirror (8) before second; Anti-mirror (8) slides with zoom shifting axle (9) and links to each other before described second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201160486U CN201642055U (en) | 2010-02-12 | 2010-02-12 | Direct digital radiography (DDR) machine for breast |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201160486U CN201642055U (en) | 2010-02-12 | 2010-02-12 | Direct digital radiography (DDR) machine for breast |
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| CN201642055U true CN201642055U (en) | 2010-11-24 |
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| CN2010201160486U Expired - Fee Related CN201642055U (en) | 2010-02-12 | 2010-02-12 | Direct digital radiography (DDR) machine for breast |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773396A (en) * | 2010-02-12 | 2010-07-14 | 杭州吴越电子有限公司 | DDR (digital data receiver) breast X-ray machine |
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2010
- 2010-02-12 CN CN2010201160486U patent/CN201642055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773396A (en) * | 2010-02-12 | 2010-07-14 | 杭州吴越电子有限公司 | DDR (digital data receiver) breast X-ray machine |
| CN101773396B (en) * | 2010-02-12 | 2013-06-05 | 杭州吴越电子有限公司 | DDR (digital data receiver) breast X-ray machine |
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| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120212 |