CN101238986A - Random calibration device for digital type bone density bone age measuring instrument - Google Patents
Random calibration device for digital type bone density bone age measuring instrument Download PDFInfo
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- CN101238986A CN101238986A CNA200810052080XA CN200810052080A CN101238986A CN 101238986 A CN101238986 A CN 101238986A CN A200810052080X A CNA200810052080X A CN A200810052080XA CN 200810052080 A CN200810052080 A CN 200810052080A CN 101238986 A CN101238986 A CN 101238986A
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Abstract
The invention provides a random calibrating device of a digital measuring instrument of bone mass density and bone age. A built-in bone template is set in an X-ray channel. A light target of imaging mechanism of measuring instrument is provided with human bones to be measured and X-ray projection area of built-in bone template. The imaging mechanism outputs the gray scale digital quantity of the built-in bone template to a computerization system of the device, wherein the computerization system is provided with a display interface of dialog window for displaying the gray scale digital quantity and setting value of gray scale of bone mass density stored by correcting the computerization system based on the gray scale digital quantity of the built-in bone template. The built-in bone template provides a bone mass density calibrating value which is stochastically displayed for the measuring instrument, so that the corresponding level of the setting value of gray scale of bone mass density stored in the computerization system can be corrected at any moment based on the setting value and the corrected setting value is accurate contrast basis value under running circumference of the measuring instrument. The bone density value of the subject is contrasted with the accurate contrast basis value therefore the result is surely right. The invention has outstanding advantages, such as detecting and adjusting the test reference of the measuring instrument at any moment and being convenient to use.
Description
Technical field
The invention belongs to calibrating installation, particularly relate to a kind of random calibration device of digital type bone density bone age measuring instrument.
Background technology
Digital type bone density bone age measuring instrument is the same with this quasi-instrument of other composition form, be a kind of X ray medical diagnostic equipment that adopts gray level image to calculate and show, its accuracy of measurement often has direct relation with situations such as alternating current power supply, the adjustment of instrument gray scale, stability of instrument.At present, be applied to clinical described instrument and mainly rely on external introduction, a spot of domestic equipment also dropped into clinical practice in recent years.
In the prior art, the described instrument of various composition forms all disposes a kind of gray scale calibrating installation that is called the bone module, this device is that core rod, the transparent plastic material of X ray are die sleeve by the metal material of imitation and equivalent people's bone piece bone shape and this bone normal bone density value, and the gray scale definite value is set.The using method of described bone modular calibration device is identical with the method for measuring the human body bone density, the x-ray imaging imaging system of instrument is converted to the readable gray scale digital quantity of instrument computing system with the ray penetrance analog quantity of bone module after the width of cloth shines, the bone density value grey scale digital quantity of this gray scale digital quantity and the storage of instrument computing system is compared after the computing, export result in many ways, literal as information such as bone densities, chart, hard copy modes such as curve and video imagery picture are the basic way of output with gray value display video video directly perceived wherein.Consistent with bone module bone density gray scale definite value or in the allowable error scope when the instrument result, illustrate that instrument is normal, then the measurement result of human body bone density is accurate.The utilization of above-mentioned bone module gray scale calibrating installation is generally undertaken by apparatus department of hospital is irregular, thereby is difficult in time find instrument misalignment situation, has the possibility that influences the measurement result accurate reliability.
Summary of the invention
The random calibration device that the purpose of this invention is to provide a kind of digital type bone density bone age measuring instrument that can find the instrument misalignment at any time and in time revise.
The present invention takes following technical scheme for achieving the above object: this random calibration device is made up of the analyzer body, it is characterized in that being provided with in the X ray passage of analyzer equivalent people's bone normal bone density value, the built-in template bone that constitutes by sheet metal, the light target of analyzer imaging mechanism is provided with by side skeleton X ray projected area and built-in template bone X ray projected area, imaging mechanism is exported the gray scale digital quantity of built-in template bone to this instrument computing system, and computing system is provided with the display interface that shows built-in template bone gray scale digital quantity and set value dialog box according to the stored bone density gray scale of built-in template bone gray scale digital quantity correction computing system.
The present invention can also take following technical measures:
The sheet metal of described built-in template bone is the LG5 technical pure aluminium sheet of thick 5-10mm, area 700-850mm
2Rectangle or square body.
The area of described built-in template bone, length * wide=33 * 23 (mm) preferably, area is 760mm
2Rectangular body.
Described analyzer imaging mechanism is made of image amplifier, CCD photographic head and data collection card.
Beneficial effect of the present invention and advantage are: this random calibration device provides a bone density calibration value that shows at random by built-in template bone for instrument, this calibration value is a constant, the bone density gray scale setting value corresponding stage that stores according to this constant value correction computing system makes it equal, and revised bone density gray scale setting value is to contrast basic value accurately under this analyzer running environment.Experimenter's bone density value is through comparing with contrasting basic value accurately, and its result is accurately certainly.This random calibration device has the test benchmark that can check and adjust digital type bone density bone age measuring instrument at any time, outstanding advantage easy to use.
Description of drawings
Accompanying drawing 1 is a built-in template bone installation site example structure sketch map.
Accompanying drawing 2 is built-in template bone example structure sketch maps.
Accompanying drawing 3 is image amplifier light target projected area sketch maps.
Accompanying drawing 4 is embodiment theory diagrams.
Number in the figure: 1 analyzer, 2 irradiation storehouse arm posting ports, 3 built-in template bones, 4 image amplifiers, 5CCD photographic head, 6 sockets, 7 skeleton X ray projected area, 8 built-in template bone X ray projected area.
The specific embodiment
Further specify the present invention below in conjunction with embodiment and accompanying drawing thereof.
As shown in Figure 1, 2, 3, side lower part is provided with the built-in template bone 3 by socket 6 supports that places the X ray passage before the image amplifier 4 of analyzer 1, and makes the light target of image amplifier 4 in the analyzer imaging mechanism be divided into non-overlapping by side skeleton X ray projected area 7 and built-in template bone X ray projected area 8.By the side skeleton is forearm chi, the distal radius 1/3 of inserting from irradiation storehouse arm posting port 2.
Built-in template bone 3 is made by the LG5 technical pure aluminium sheet of thick 5-10mm, and area is at 700-850mm
2Select in the scope to determine, be shaped as rectangle or square body.The built-in template bone 3 of present embodiment is that length * wide=33 * 23 (mm), thick 8mm, area are about 760mm
2Rectangular body, the projection at its projected size and testing human forearm chi, distal radius 1/3 place adapts.The bone density calibration value of built-in template bone 3 can utilize bone module of the prior art to be determined, promptly select the bone module at corresponding human body forearm chi, distal radius 1/3 place for use, at the thickness of test of same analyzer and the built-in template bone of revised edition, equate with bone module calibration value until the analog bone density value of built-in template bone.
As shown in Figure 4, the computing system of present embodiment analyzer is formed by computer with at the controller of main x ray generator, in the X ray passage of analyzer the irradiation storehouse is set, the irradiation storehouse is provided with the built-in template bone that is positioned at the preceding side lower part of image amplifier, and the analyzer imaging mechanism comprises image amplifier, CCD photographic head and data collection card.Imaging mechanism can obtain the ray penetrance analog quantity of corresponding respectively built-in template bone and experimenter's skeleton simultaneously and be converted to the gray scale digital quantity, each gray scale digital quantity exports this instrument computing system to, and the computer display interface of computing system is provided with the dialog box of the bone density gray scale setting value that shows built-in template bone bone density calibration value, experimenter's skeletal bones density value and computer stored.According to the bone density gray scale setting value that the built-in template bone bone density calibration value corrected Calculation machine that is constant stores, revised bone density gray scale setting value is to contrast basic value accurately.Experimenter's bone density value through with contrast basic value comparison computing accurately after draw human body bone densitometry accurately, its result prints defeated.
Claims (4)
1, the random calibration device of digital type bone density bone age measuring instrument, formed by the analyzer body, it is characterized in that: be provided with equivalent people's bone normal bone density value in the X ray passage of analyzer, the built-in template bone that constitutes by sheet metal, the light target of analyzer imaging mechanism is provided with by side skeleton X ray projected area and built-in template bone X ray projected area, imaging mechanism is exported the gray scale digital quantity of built-in template bone to this instrument computing system, and computing system is provided with the display interface that shows built-in template bone gray scale digital quantity and set value dialog box according to the stored bone density gray scale of built-in template bone gray scale digital quantity correction computing system.
2, random calibration device according to claim 1 is characterized in that: the sheet metal of described built-in template bone is the LG5 technical pure aluminium sheet of thick 5-10mm, area 700-850mm
2Rectangle or square body.
3, random calibration device according to claim 2 is characterized in that: the area of described built-in template bone, and length * wide=33 * 23 (mm) preferably, area is 760mm
2Rectangular body.
4, random calibration device according to claim 1 is characterized in that: described analyzer imaging mechanism is made of image amplifier, CCD photographic head and data collection card.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810052080XA CN101238986B (en) | 2008-01-16 | 2008-01-16 | Random calibration device for digital type bone density bone age measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810052080XA CN101238986B (en) | 2008-01-16 | 2008-01-16 | Random calibration device for digital type bone density bone age measuring instrument |
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| CN101238986A true CN101238986A (en) | 2008-08-13 |
| CN101238986B CN101238986B (en) | 2011-10-19 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217944A (en) * | 2010-04-14 | 2011-10-19 | 深圳市艾克瑞电气有限公司 | Method for measuring bone density by using digital X-ray images |
| CN103040478A (en) * | 2011-10-13 | 2013-04-17 | 杨胜尧 | Method for standardized detection of quality of dual energy X-ray bone density absorption measuring instruments |
| CN103442638A (en) * | 2011-03-18 | 2013-12-11 | 日立阿洛卡医疗株式会社 | Bone density measurement device |
| CN106725551A (en) * | 2016-12-30 | 2017-05-31 | 莱福医疗设备有限公司 | New X-ray borne densitometers |
| CN113017657A (en) * | 2021-03-08 | 2021-06-25 | 中国计量科学研究院 | Method for calibrating projection area of dual-energy X-ray bone densitometer and die body |
| CN113017656A (en) * | 2021-03-08 | 2021-06-25 | 中国计量科学研究院 | Automatic calibration and value fixing method for dual-energy X-ray bone densitometer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2465181Y (en) * | 2001-02-27 | 2001-12-12 | 吕尤焱 | Desk type bone age and bone density measurer |
| CN2657585Y (en) * | 2003-12-02 | 2004-11-24 | 吕尤鸿 | X-ray focile-image convertion device for bone density and age measurment |
-
2008
- 2008-01-16 CN CN200810052080XA patent/CN101238986B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217944A (en) * | 2010-04-14 | 2011-10-19 | 深圳市艾克瑞电气有限公司 | Method for measuring bone density by using digital X-ray images |
| CN103442638A (en) * | 2011-03-18 | 2013-12-11 | 日立阿洛卡医疗株式会社 | Bone density measurement device |
| CN103442638B (en) * | 2011-03-18 | 2015-11-25 | 日立阿洛卡医疗株式会社 | Bone density measurement device |
| CN103040478A (en) * | 2011-10-13 | 2013-04-17 | 杨胜尧 | Method for standardized detection of quality of dual energy X-ray bone density absorption measuring instruments |
| CN106725551A (en) * | 2016-12-30 | 2017-05-31 | 莱福医疗设备有限公司 | New X-ray borne densitometers |
| CN113017657A (en) * | 2021-03-08 | 2021-06-25 | 中国计量科学研究院 | Method for calibrating projection area of dual-energy X-ray bone densitometer and die body |
| CN113017656A (en) * | 2021-03-08 | 2021-06-25 | 中国计量科学研究院 | Automatic calibration and value fixing method for dual-energy X-ray bone densitometer |
| CN113017656B (en) * | 2021-03-08 | 2022-09-16 | 中国计量科学研究院 | Automatic calibration and value fixing method for dual-energy X-ray bone densitometer |
| CN113017657B (en) * | 2021-03-08 | 2022-09-16 | 中国计量科学研究院 | Method for calibrating projection area of dual-energy X-ray bone densitometer and die body |
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| Publication number | Publication date |
|---|---|
| CN101238986B (en) | 2011-10-19 |
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