CN2060338U - Portable miniature x-ray - Google Patents
Portable miniature x-ray Download PDFInfo
- Publication number
- CN2060338U CN2060338U CN 89213261 CN89213261U CN2060338U CN 2060338 U CN2060338 U CN 2060338U CN 89213261 CN89213261 CN 89213261 CN 89213261 U CN89213261 U CN 89213261U CN 2060338 U CN2060338 U CN 2060338U
- Authority
- CN
- China
- Prior art keywords
- gear
- portable miniature
- conversion screen
- low
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Abstract
The utility model relates to a portable miniature x-ray machine which is used for medical diagnosis, comprising a radiation source made of low-energy nuclide, a conversion screen, a micro light image intensifier, an optical loupe, a miniature high-voltage power supply, a time-limit alarm, a driving device of radiation source steering, and a safe locking device. The utility model has the advantages of small size, convenient operation, long service life, simple structure, timely diagnosis, and clear image. The utility model has no pollution to an operator and the surrounding environment. The portable miniature x-ray machine is suitable to places without power and mobile medical care, and can be produced in large scale.
Description
This utility model is a kind of medical radiation diagnosis that is used for, especially for non-transformer, and the portable miniature fluoroscopic machine of the medical radiation in no darkroom diagnosis.
In existing technology, american documentation literature 4142101 has been described a kind of small-sized scenograph (merchant's label is L1 * 1), and mainly by x-ray source, X ray conversion screen and image intensifier are formed, and it is characterized in that x-ray source adopts metal-back to encapsulate
125I nucleic, conversion screen are to make with rare earth material, and high voltage power supply is by manostat, Hartley oscillator, and booster transformer and doubler are formed; Though image intensifier has little, the easy to use advantage of volume by the multiple power supplies power supply.But the deficiency that exists is:
1.X radiographic source adopts the metal-back encapsulation, to low-yield nucleic
125The radiating X ray self-absorption of I is serious, and effective rate of utilization is not high.
2. prepare X ray conversion screen with rare earth material, complex process, cost height.
3. high voltage power supply complex structure, volume are big, thereby the fluoroscopic machine volume is increased thereupon, cause and use and carry inconvenience.
4. image intensifier adopts multiple feed, makes troubles for manufacturing and designing of power supply.
Described a kind of pocket X-ray machine in Chinese patent literature CN87207274U, it is mainly by the X-ray tube of little focus, light cone type transducer, and the image intensifier of electrostatic focusing type and power supply are formed.Have advantage, but also have following deficiency without nucleic:
1. the use X-ray tube owing to the tube voltage of tens thousand of volts and several amperes heater current, makes the power supply design complicated, manufacture difficulty is big, under the non-transformer condition, must be equipped with heavy electric power system, and be difficult to keep bigger power consumption, can not be for a long time away from the power supply operation.
Since X-ray tube when work can serious heating, can only instantaneous by phased manner work under the natural cooling condition, need start for several times and long cool time during diagnosis, make the timeliness of the diagnosis difficulty that becomes, one time Diagnostic Time is also longer, thereby uses inconvenience.
The purpose of this utility model is to design a kind of simple in structurely, easy to use in order to overcome above-mentioned deficiency, and volume is little, the portable miniature fluoroscopic machine that the ray effective rate of utilization is high.
The purpose of this utility model realizes by following structure: portable miniature fluoroscopic machine is by mental retardation nucleic radiographic source, conversion screen, steer-drive, low-light image amplifier, optical loupes and the high-pressure mini power supply composition that mates with the low-light image amplifier, wherein:
Mental retardation nucleic radiographic source by the mental retardation nucleic and the encapsulation nucleic seal pressure vessel and the collimator shield is formed, sealing pressure vessel is to make piped housing by lucite or titanium, the reflection post of useful rustless steel in nucleic rear portion or depleted uranium material in housing, the nucleic front portion is-0.2mm---the thin window of 0.5mm, the pressure vessel of sealing of packaged nucleic and reflection post is fixed in and uses rustless steel, lead, thus constitute mental retardation nucleic radiographic source in the collimator shield of depleted uranium material.Its low-yield nucleic can be
125I,
109Cd
119Sn,
153Gd,
170Tm.
Conversion screen is to sandblast the lucite circular liner plate handled and the circular paper liner that be sprayed with through the fluorescent material of refinement processing be bonded for eliminating material stress through single face by lucifuge layer and 0.3mm thickness.Its fluorescent material silver-colored activated zinc-cadmium sulfide " (Zn.Cd) S:Ag " (its resolving power is 2-4LP/mm, emission wavelength is 5500A) or europkium-activated barium fluochloride (BaFCl:Eu) (its resolving power is 4200A for the 5-7LP/mm emission wavelength), they all can convert the ray photons that absorbs to visible image.
Steer-drive is made up of fuselage, hollow connecting rod, trigger, tooth bar, back-moving spring, gear I, gear II and bearing, trigger and gear I are mutually affixed and be fixed on the fuselage by pin slide, on the gear I affixed one can jack-up have can be respectively and the last tooth and the side tooth of gear I, the engagement of gear II the two ends of boss (or cam) tooth bar of on and off switch, at tooth bar middle part and connecting rod front inner wall the spring hook is arranged, hook back-moving spring, there is a reference column hole at the position that the collimator shield is inserted in the upper end of gear II.
The low-light image amplifier that this utility model adopts is by the input optical window, the optical fiber plate, photocathode, the electron focusing utmost point, micro channel plate (MCP), the glass output window, fluorescent screen and shell are formed, it is a kind of electrostatic focusing formula inverted image formula image intensifier, its effective input window diameter is 40mm, and the output screen effective diameter is 13mm, and it is to adopt electrostatic focusing, input of fiber eyeglass and the output of glass output window, its resolving power is for being 95LP/mm when importing negative electrode r=10mm, and r=20mm is 70LP/mm, far above the resolving power of conversion screen, turning during for 7LP/mm changed efficient and reached 95%, and be almost nil for the loss of information.
The high-pressure mini power supply is 1.5 volts of direct current supplys (as common No. 2 alkaline dry batteries of 1.5V), be output as continuously adjustable 12KV～16KV, this high-voltage power supply is supporting with above-mentioned low-light image amplifier, it is by agitator, plural serial stage booster, commutator, anti-electric insulation through strictness is handled, be packaged in a diameter 16mm, in the metallic cylinder of long 55mm, this cylinder double as common ground end.Import the utmost points from the cylinder leading-out terminal as 1.5 volts of low-tension supplies.The high pressure output stage is in the front portion of cylinder, with high insulant (for ease of the sealing, the common lucite of using) makes the multilayer insulation ring, the load wire terminal adds silicone rubber with rubber sleeve and makes and power supply output stage dead ring corresponding annular head, adopt universal hinge joint between lead and jack, the adjusting of output voltage values is to realize by the adjusting that is connected on input electrode potential device R.
When fluoroscopic machine is started working, cocking, the cam that links with trigger is turned on the power switch, high-pressure mini power drives low-light image amplifier, trigger driven gear I promotes tooth bar and moves backward simultaneously, makes the gear II rotation that is meshed with tooth bar, the radiographic source that gear II upper end connects produces in the radiation-resistant glass cover, just in time with the conversion screen centrally aligned.Collimator is slightly larger than conversion screen with the lucky directive of hot spot and in the border circular areas less than shell, had both satisfied imaging requirements, makes the unlikely operator of influence of scattering radiation again.After unclamping trigger, radiographic source is got back in the radiation-resistant glass cover under the spring force effect automatically, and cuts off the electricity supply.
Machine shape is designed to handgun shape, and one-handed performance is flexible.
Description of drawings of the present utility model is as follows:
The portable miniature fluoroscopic machine structural representation of Fig. 1;
Fig. 2 radiographic source structural representation;
Fig. 3 steer-drive structural representation;
Fig. 4 lucifuge layer and conversion screen generalized section;
Fig. 5 low-light image amplifier structural representation;
Fig. 6 start shooting sound equipment and warning circuit figure in limited time;
Fig. 7 the start shooting sound equipment and the oscillogram of reporting to the police in limited time;
Among the figure: 1. radiographic source, 2. radome, 3. collimator, 4. steer-drive, 5. connecting rod, 6. trigger, 7. lucifuge layer, 8. conversion screen 9. low-light image amplifiers, 10. optical loupes, 11. high-pressure mini power supplys, 12. starts are alarm in limited time, 13. batteries, 14. fuselage, 15. locks, 16. nucleic, 17. seal pressure vessel, 18. the reflection post, 19. protection localizers, 20. reference columns, 21. bearings, 22. the gear II, 23. tooth bars, 24. gear I, 25. boss (wheel), 26. input optical fibres dimension plate, 27. glass output windows, 28. spring, 29. stain-proofing layers, 30. metal formings, 31. cover photosphere, 32. liner plates, 33. liners, 34 fluorescent materials, 35. elastic rings, 36. photocathodes, 37. the electron focusing utmost point, 38. micro channel plates, 39. fluorescent screens, 40. shell, 41. observation windows, 42. buzzers.
Below in conjunction with drawings and Examples this utility model is further described:
Fig. 1 is a fluoroscopic machine complete machine structure sketch map.Radiographic source 1 is installed in the alpha ray shield cover 2 that has collimator 3, and links to each other with steer-drive 4, stands on the connecting rod 5.Conversion screen 8 closely pastes with low-light image amplifier 9 planes.The fluorescent material of conversion screen is towards the input window of booster.In order to reduce the lateral divergence of conversion screen photon, should make them be in elasticity and be close to mode.Adopt the adjustment type mechanical connection between optical amplification system 10 and image intensifier.Lucifuge layer 7, conversion screen 8, image intensifier 9, optical loupes 10 is packed into and is become arranged in co-axial alignment in the circular shell (optical loupes is a simple lens, and amplification can 3 times, and focal length is 50mm-60mm, the length of window 41 is selected according to the observation), be lying on the direct handling type handle shape fuselage 14 of setting.The center of conversion screen makes hot spot be slightly larger than conversion screen and slightly littler than circular casing over against the radiographic source behind collimation.Start sound equipment and prescribe a time limit alarm 12 and high-pressure mini power supply 11 and trigger 6 can be housed in the fuselage 14, and make connecting rod 5 be fixed into a firm integral body.Pack in the handle cavity of fuselage below as No. 2 batteries of two joints of complete machine power supply.Trigger 6 is as the simultaneously operating part of press button and steer-drive, and lock 15 is installed in the fuselage side near boss (wheel) 25 places, can lock boss (wheel), thereby has only and lock when being in opening, and fluoroscopic machine could start.
Figure 2 shows that the radiographic source structural representation,, seal pressure vessel 17 by low-yield nucleic source 16, reflection post 18, collimation shield 19 is formed.Seal shell and be generally lucite, aluminum or titanium material, front end window thickness is respectively 1mm, 0.5mm, 0.2mm.Make it both satisfy the radiological safety protection requirement, make its loss to the source less again, the size in source generally can obtain distinct image in φ 2mm * 1mm.
Figure 3 shows that the steer-drive structural representation.By reference column 20, bearing 21, gear II 22, tooth bar 23, spring 28, gear I 24, trigger 6 and boss or cam 25 are formed.When cocking 6, drive linkage gear I 24 and rotate, tooth bar 23 becomes rectilinear motion with rotation, makes gear II 22 that reference column 20 is made axial circular motion in bearing 21.When trigger was anchored to, the radiographic source that is fixed in reference column forwarded the ray delivery outlet of radome just to, and trigger drives boss or cam 25 backs down power knob simultaneously.The back that power knob is being locked inwards along paper.
Figure 4 shows that the cross-sectional view of lucifuge layer 7 and conversion screen 8.By stain-proofing layer 29, metal forming 30, liner plate 32, paper washer 33 fluorescent materials 34 cover light pad 31 and elastic seal ring 35 is formed.Stain-proofing layer is made diameter 70mm by anti-irradiated plastics, and thickness 0.05mm metal forming is the aluminium foil of handling through chemical melanism, and diameter is 70mm, thickness 0.05mm.Covering the light pad is the flexible paper cover of single face graphitization.Liner plate is the poly (methyl methacrylate) plate that the 0.3mm single face sandblasts and handles.Fluorescent material is sprayed on the paper washer.Coating thickness is 0.3～0.4mm to (Zn.Cd) S:Ag material, to (BaFCl): Eu is 0.2～0.3mm, is a plane after they are made, under the tension force effect of elastic seal ring 35, make they and image intensifier, the elasticity that is connected to become between the casing is close to.
The complete machine power supply is No. 2 common alkaline dry batteries of 2 joints, is installed in the handle cavity.
Figure 5 shows that low-light image amplifier structural representation.It can be the XX1311 type, XX1310 type, XX1470 type and XX1317 type low-light image amplifier, it is by input optical fibre dimension plate 26, photocathode 36, the electron focusing utmost point 37, micro channel plate 38 fluorescent screens, 39 glass output windows 27 and shell 40 are formed.Its operation principle is to become electronics by the fiber optics plate to photocathode from the photon that conversion screen comes out to focus on by the high voltage electric field accelerated electron, by micro channel plate (MCP) directive fluorescent screen, converts photon again to and reaches the enhanced purpose of its low-light image then.
The start acoustics circuit shown in Figure 6 and the warning circuit of prescribing a time limit.Their common dual time-base ics and diode AND gate and buzzer 42 of adopting are formed, and the start acoustics circuit constitutes delay circuit by half of dual time base circuit, and operation principle is: during the start energized, and V
S1=V
R1=V
CCAs shown in Figure 7, this moment V
Q1Output low level.Buzzer is by diode BG
1Conducting is sent sound equipment as the start indication.Because capacitor C
1Charging, resistance R
1On current potential descend gradually, when being reduced to V
S1≤
1 3V
CCThe time, V
Q1Upset also keeps high level, and buzzer stops to ring.The length of ringing time is in R
1, C
1Value decision, about 1 second usually.
In limited time audible alarm circuit is made of second half of dual time base circuit does not need the stable multi-oscillation of external trigger circuit.Its frequency of oscillation is f=1.44/(R
A+ 2R
Q) .C
2During start because capacitor C
2Current potential can not suddenly change, V
S2=V
R2=0, V
Q2Be high level.Work as capacitor C
2Charging is up to V
S2=V
R2=V
C2〉=2/3 V
CCThe time, V
Q2Upset is low level, and buzzer is by diode BG
2Conducting is rung once more.Send fluoroscopic machine one action alarm sound then.Need the long period start if run into special circumstances, then because capacitor C
2The charge storage effect, buzzer will be reminded operator's shutdown to ring repeatedly than the short slightly interval of the time of fire alarming first time.
The utility model compared with prior art has the following advantages:
1. radiographic source of the present utility model is the low energy nucleic, and it is little except having volume, and it is convenient to change, and the location can be outer, also has the utilization of nucleic ray The efficient height, the preparation method is simple, without the advantage of power supply. Avoided the use X-ray tube to make Diagnostic Time long, shell is frangible, power supply heaviness, the deficiencies such as inconvenience maintenance.
2. use the normal optical material as converter screen, simplified system screen technology, reduced cost. Make simultaneously the replacing of conversion screen easy.
3. adopt the focusing inverted image low-light image amplifier of planar electrostatic, overcome the pollution of fluorescent material to photocathode. Optically-coupled between it and the conversion screen is to fit in simple plane. Drive with single supply, simplified Power Management Design. Because its good modulation transfer function and high resolution capability and automatic anti glare anti static coatings defencive function all improve whole resolving power of the present utility model and reliability.
4. adopt the radiographic source drive unit, make radiographic source and circuit working in good time state, reduced radiation and circuit working time, the working life of image intensifier is had protective effect.
5. adopt the high-pressure mini power supply, machine volume is dwindled, its low-tension supply is common No. 2 alkaline dry batteries of a joint. Because high voltage source adopts all-sealed structure, has good moistureproof ability.
6. the complete machine power supply is No. 2 general alkali dry cells of 2 joints, and it is convenient to change, and uses safety.
Claims (6)
1, a kind of portable miniature fluoroscopic machine is by low energy gamma source 1, steer-drive 4, conversion screen 8, low-light image amplifier 9 and form with the high-pressure mini power supply 11 and the optical loupes 10 of its coupling; It is characterized in that:
A. low energy gamma source 1 is by low-yield nuclear essence 16, encapsulation nucleic and reflection post 18 seal pressure vessel 17, collimation shield 19 is formed, seal pressure vessel and made by lucite, aluminum or titanium material, reflection post and collimator shield are made by rustless steel, lead or depleted uranium material;
B. conversion screen is by lucifuge layer 7 be sprayed with through the circular paper liner 33 of the fluorescent material of refinement processing and through the single face circular liner plate of handling 32 of lucite that sandblasts and be bonded;
C. steer-drive is by fuselage 14, connecting rod 5, trigger 6, tooth bar 23 and gear 124, gear II 22, reference column 20, bearing 21 and back-moving spring 28 are formed, trigger 6 is affixed mutually and be fixed on the fuselage by pin slide with gear 1, the boss 25 that one energy jack-up on and off switch is arranged on the gear 1, tooth and side tooth and gear 1, the engagement of gear II have the spring hook at tooth bar middle part and connecting rod 5 front end inside on the two ends of tooth bar have respectively.
2, portable miniature fluoroscopic machine as claimed in claim 1 is characterized in that: low energy nucleic is
125I,
109Cd,
119mSn,
153Gd,
170Tm.
3, portable miniature fluoroscopic machine as claimed in claim 1 is characterized in that: the fluorescent material 34 that is sprayed on the circular paper liner 33 is (Zn.Cd) S:Ag or europkium-activated barium fluochlorides ［ BaFCL:En ］ of silver-colored activated zinc-cadmium sulfide.
4, as claim 1,3 described portable miniature fluoroscopic machines, it is characterized in that: the lucifuge layer of conversion screen covers light pad 31 and elastic seal ring 35 compositions by stain-proofing layer 29 metal formings 30; Wherein stain-proofing layer is made by the radiation hardness plastics, and metal forming is the aluminium foil of handling through chemical melanism, and covering the light pad is the flexible paper cover of single face graphitization.
5, the portable sexual type fluoroscopic machine that declines as claimed in claim 1 is characterized in that: the lock 15 that can lock boss is arranged before near on and off switch on boss 25.
6, portable miniature fluoroscopic machine as claimed in claim 1 is characterized in that: the start sounder and in limited time alarm 12 be by dual time-base ic NE556(A), NE556(B) and diode BG dorsad
1, BG
2Constitute with door and buzzer 42, at NE556(A) input and R end and S
1End and earth terminal are connected to charging capacitor C respectively
1And resistance R
1At NE556(B) input and discharge end be connected to R
A, R
BBe connected on its discharge end and S
2End, C
2Be connected on R
BAnd between the earth terminal, BG
1And BG
2Meet the Q of NE556 dorsad
1, Q
2End, buzzer 42 meets power supply and BG
1With BG
2The center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213261 CN2060338U (en) | 1989-10-26 | 1989-10-26 | Portable miniature x-ray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213261 CN2060338U (en) | 1989-10-26 | 1989-10-26 | Portable miniature x-ray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060338U true CN2060338U (en) | 1990-08-15 |
Family
ID=4869302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213261 Withdrawn CN2060338U (en) | 1989-10-26 | 1989-10-26 | Portable miniature x-ray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579062A (en) * | 2011-12-22 | 2012-07-18 | 重庆大学 | Portable X-ray transmissometer |
-
1989
- 1989-10-26 CN CN 89213261 patent/CN2060338U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102579062A (en) * | 2011-12-22 | 2012-07-18 | 重庆大学 | Portable X-ray transmissometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1973585B (en) | Portable X-ray device | |
| EP0488991B1 (en) | Method for production of fluoroscopic and radiographic X-ray images and hand held diagnostic apparatus incorporating the same | |
| GB1604101A (en) | Producing visible light from a radiation source | |
| CN1973586A (en) | Digital X-ray camera | |
| CN101836129A (en) | Cassette radiographic image solid-state detector | |
| KR101684400B1 (en) | Portable carbon nanotube and filament type X-ray device | |
| US4140900A (en) | Panel type x-ray image intensifier tube and radiographic camera system | |
| US4791300A (en) | Miniature gamma camera | |
| GB2034148A (en) | Multi element, high resolution scintillator structure | |
| CN103077875A (en) | Vacuum diode with high current, small focal spot and long service life | |
| US4300046A (en) | Panel type X-ray image intensifier tube and radiographic camera system | |
| CN2060338U (en) | Portable miniature x-ray | |
| US4104516A (en) | Direct view, panel type x-ray image intensifier tube | |
| US6945694B2 (en) | Dental X-ray apparatus | |
| US4447721A (en) | Panel type X-ray image intensifier tube and radiographic camera system | |
| Platts et al. | Compact flash X-ray units | |
| CA1095188A (en) | Panel type x-ray image intensifier tube and radiographic camera system | |
| JP2747422B2 (en) | Power supply system in micromachine | |
| KR20080094968A (en) | Digital x-ray camera | |
| JP2747421B2 (en) | Power supply system in micromachine | |
| US3217163A (en) | Piezoelectrically powered x-ray equipment | |
| Yin et al. | The low intensity X-ray imaging scope (Lixiscope) | |
| USRE31691E (en) | Panel type x-ray image intensifier tube and radiographic camera system | |
| CN210811123U (en) | X-ray image diagnosis device | |
| CN2107061U (en) | Large-scale x-ray image intensifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |