A kind of New LED light beam indicating type sphygomanometer
Technical field
This utility model relates to non-mercury sphygmomanometer technical field, is specifically related to a kind of New LED light beam indicating type sphygomanometer.
Background technology
Along with the fast development of social and economic condition, people's health care consciousness constantly strengthens, and level of medical and health is also improving constantly, and the social need amount of blood pressure measurement instrument shows a rising trend.By the classification of metering display mode, conventional blood pressure measurement instrument is divided three classes at present, i.e. mercury sphygmomanometer, flexible member formula sphygomanometers and electric sphygmomanometer.Having the call of mercury sphygmomanometer wherein, annual domestic production-sales volume reaches about 1,200,000, exports to simultaneously abroad also to reach hundreds thousand of more than.Because hydrargyrum is a kind of poisonous and hazardous material, contaminated environment, harm humans health, and also mercury pollution is not easy to eliminate, and consequence is serious.China is used for mercury sphygmomanometer every year and produces required hydrargyrum and reach more than 100 tons, has become one of main path that hydrargyrum consumes.But because mercury sphygmomanometer has the column clear display, measures accurate, durable in use, lower-price characteristic, the doctor gets used to again using in addition, makes mercury sphygmomanometer still be widely used.Resilience in comparison component type sphygomanometers indication range is little, and is clear inadequately, and ruggedness is good inadequately, the automatic measurement result degree of stability of electric sphygmomanometer is low, can not with the supporting use of stethoscope, reason such as doctor's degree of belief is low, mercury sphygmomanometer also will be the main measuring appliance of hospital's examination and family health care.
The metering that can keep mercury sphygmomanometer shows advantage and use habit, and the non-hydrargyrum type of the environmental protection sphygomanometer that does not use hydrargyrum again is the social at present blood pressure measurement instrument of being badly in need of.External many countries are at the seriousness of mercury pollution, have forbidden or advise forbidding producing and using mercury sphygmomanometer.China recent years is also had higher requirement to environmental conservation, under the sophisticated gradually condition of condition, also will progressively forbid producing and using mercury sphygmomanometer.Exploitation has the non-hydrargyrum type environmental protection sphygomanometer of mercury sphygmomanometer advantage and instructions for use, will make to contain mercury sphygmomanometer and step down from the stage of history rapidly, reduces the pollution of hydrargyrum to environment.
Summary of the invention
The purpose of this utility model just is to provide the advantages such as demonstration metering that both keep mercury gauge sphygmomanometer, can realize a kind of New LED light beam indicating type sphygomanometer of the pollution-free environmental protection of non-mercuration again.
For this reason, this utility model provides the non-mercury sphygmomanometer of a kind of LED of employing light beam matrix display technology and optoelectronic integration.
This utility model provides a kind of LED light beam indicating type sphygomanometer, and it mainly comprises:
The pressure indication LED light beam of a simulation mercury column;
The pressure indicating graduation scale that is complementary with described pressure indication LED light beam;
Wait the signal interface circuit of handling to proofreading and correct from the pressure signal of pressure transducer to amplify;
Pressure signal is handled and is controlled the central processing unit of demonstration, sounding;
Be used for the LED light beam drive circuit that the driving LED light beam shows;
The pressure transducer of sensing device for exerting such as cuff internal pressure;
Measure the labelling button of demarcation.
The pressure signal that this utility model is sensed from device for exerting by pressure transducer is exported through signal interface circuit to central processing unit, after conversion process, output to LED light beam drive circuit, between the luminous display area of LED light beam drive circuit according to pressure signal size decision LED light beam, form column pressure showing rod, thereby reach the indicating mode of simulation mercury column.Keeping on original mercury sphygmomanometer measuring method basis of invariable, the pressure value that user can obtain judgement by the labelling button is convenient for measuring reading of numerical value in the enterprising row labels of LED light beam.
Compare with existing mercury sphygmomanometer, the utlity model has following advantage: at first, the most important thing is to have kept characteristics such as the original display mode of mercury sphygmomanometer, measuring method, use habit, only show that with the LED light beam replacing mercury column shows, has eliminated the pollution of hydrargyrum to environment; Secondly, the display shape of LED light beam, size and mode and mercury column show as broad as long substantially, do not change original reading habit of mercury gauge sphygmomanometer; The 3rd, LED light beam display brightness height, clear eye-catching, be convenient under the scene a little less than the light, use; The 4th, come the simulated pressure graduation mark to show by the color that changes corresponding LED in the LED light beam, improve the convenience of reading.Moreover the color that changes the LED light beam arranges, and can carry out color differentiating to higher-pressure region and low-pressure area on the LED light beam, is beneficial to the judgement and the observation of user.Five, the labelling button easily the labelling user be convenient for measuring reading of result by the pressure value that simple judgement obtains, improve the convenience of user.Also can arrange, can satisfy the specific demand of different groups user easily by the shape, line number, the color that change the LED light beam.
The New LED light beam indicating type sphygomanometer that this utility model provides utilizes the optics indication to replace the hydrargyrum indication, has avoided hydrargyrum to environment and the human harm that causes, and has realized the non-mercuration and the environment-friendly type of sphygomanometer.It is keeping the mercury gauge sphygmomanometer indication range big, when indicate advantage such as directly perceived, has also improved the convenience and the friendly of reading.This utility model has made full use of the advantageous characteristic of LED solid state lighting device, makes that to the utlity model has shock resistance strong, and display brightness is big, indication definition height, need not characteristics such as horizontal positioned when using.Adopt all-electronin and optical treatment, its core technology advanced person, the reliability height uses the close friend, moderate cost.Therefore the utlity model has great use promotional value.
Below, the utility model is described in further detail with embodiment in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 is the electrical block diagram that this utility model is implemented
Fig. 2 is the overall appearance figure that this utility model is implemented
Fig. 3 is the LED light beam outside drawing that this utility model is implemented
Fig. 4 is the blood pressure LED light beam indication sketch map that this utility model is implemented
The specific embodiment
As shown in Figure 1, this utility model provides a kind of New LED light beam indicating type sphygomanometer, and it mainly comprises:
The pressure indication LED light beam 1 of simulation mercury column indication;
The LED light beam drive circuit 2 that is used for driving pressure indication LED light beam;
The pressure transducer 4 of sensing device for exerting such as cuff 12 internal pressures;
Pressure signal to described pressure transducer 4 inputs is proofreaied and correct the signal interface circuit 5 of processing and amplifying;
Pressure signal is carried out conversion process and to the central processing unit 3 that shows and sounding is controlled;
The pressure indicating graduation scale 10 that is complementary with described pressure indication LED light beam 1;
Carry out the labelling button 8 of measurement markers;
In addition, provide the power circuit 7 of entire circuit system works in addition, and the output sound-producing device 9 of perception pulse signal.
Shown in attached Fig. 1 and 2, the New LED light beam indicating type sphygomanometer that this utility model provides adopts battery 6 power supplies, and offers the work of each circuit such as central processing unit 3, signal interface circuit 5, pressure transducer 4, LED light beam drive circuit 2, pressure indication LED light beam 1 after power circuit 7 voltage stabilizings.Inflate by extruding gas transmission ball 13 pairs of cufves 12, pressure transducer 4 is the pressure in the real-time sensing cuff 12, and corresponding pressure signal is input to central processing unit 3 after signal interface circuit 5 is handled.3 pairs of input pressure signals of central processing unit are changed and are calculated, and the displaying contents that controlled pressure indication LED light beam 1 shows is exported to LED light beam drive circuit 2.LED light beam drive circuit 2, is lighted the LED in the pressure indication LED light beam 1 corresponding demonstration pressure limit by scan mode according to displaying contents, forms the luminous display area 14 of cylindricality, as shown in Figure 4, thereby reaches the pressure indicating effect of simulating mercury column.When the pressure size changes, the LED light beam viewing area 14 of corresponding blood pressure indication also changes thereupon, has simulated the dynamic indication process that mercury gauge sphygmomanometer is measured pressure in the blood pressure process.Give cuff 12 inflations, pressure increases, and LED light beam viewing area 14 increases from bottom to top.After reaching certain pressure, press the certain speed aerofluxus, gas pressure slowly slackens in the cuff 12, and LED light beam viewing area 14 reduces from the top down.Along with progressively weakening of pressure, pressure transducer 4 will sense the pulsation of blood flow in the blood vessel, central processing unit 3 removes to control sound-producing device 9 according to the fluctuating signal that records and sends sound corresponding to the sensing fluctuation intensity, to help the judgement of user to gaging pressure, improves the accuracy that detects.Press labelling button 8, the systolic pressure and the diastolic pressure of correspondence carry out labelling in the time of can be to the impulsive sound appearing and subsiding, and corresponding force value position forms flicker bright spot 16 on pressure indication LED light beam 1, help to measure reading of numerical value.
As shown in Figure 3, the described pressure indication LED of this utility model embodiment light beam 1 is selected high brightness LED chip for use, adopts special process to be packaged into high density square linear array on binding circuit board 17.Utilize the light refraction principle, make point source pass through 18 one-tenth phases of grating pattern on the transparent casing 19, form and show successive simulation luminous.
As shown in Figure 4, pressure indication LED light beam 1 uses 150 line LED matrixes to arrange every graduation mark of each line corresponding pressure indicating graduation scale 10 in the specific embodiments of the present utility model.0~300mmHg measuring range of corresponding sphygomanometer regulation, the measurement indicating value between adjacent two lines is 2mmHg.According to the indicating value of present GB 3053-93 " sphygomanometer and sphygomanometers " regulation allow elementary error be ± 0.5Kpa (± 3.75mmHg), the requirement of certainty of measurement conformance with standard.According to different application scenario needs, change the line number of LED in the pressure indication LED light beam 1, can show different measurement intensive reading.Reading property when measuring in order to improve, the pressure indication LED light beam 1 that this utility model embodiment uses gives different colours by certain scale interval and arranges LED with display simulation graduation mark 15, and corresponding to the digital calibration line on the pressure indicating graduation scale 10.
The pressure indication LED light beam 1 that this utility model uses can be made into different colours according to concrete needs and distinguish demonstration different pressures section, helps observation and the understanding of user in measuring process.What the pressure indication LED light beam 1 that this specific embodiment uses adopted is prevailing monochromatic LED light beam.
The pressure indication LED light beam 1 that this utility model uses is a kind of high-power display device, in order to guarantee working stability of the present utility model, to improve the electric energy service efficiency, prolong battery service time, this utility model specific embodiment is provided with line under-voltage indication 11, time-delay shutdown automatically, function such as triggering and dormancy, automatic brightness adjustment automatically.
This utility model can adopt receiver to replace sound-producing device to carry out blood pressure measurement according to the custom of using mercury sphygmomanometer.