CN205144544U - High accuracy can show potential measurement formula mercury sphygmomanometer - Google Patents
High accuracy can show potential measurement formula mercury sphygmomanometer Download PDFInfo
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- CN205144544U CN205144544U CN201520909715.9U CN201520909715U CN205144544U CN 205144544 U CN205144544 U CN 205144544U CN 201520909715 U CN201520909715 U CN 201520909715U CN 205144544 U CN205144544 U CN 205144544U
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- hydrargyrum
- amplifier
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- module
- precision resistance
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Abstract
The utility model discloses a high accuracy can show potential measurement formula mercury sphygmomanometer includes precision measurement mechanism and signal processing indication mechanism, and precision measurement mechanism includes precision resistor piece, precision resistor, power, balance resistance and amplifier, and the precision resistor penton is root conductor connecting mercury cavity pipe wall too much, and precision resistor's first end is connected to the bottom of precision resistor piece, the signal processing indication mechanism include analog -to -digital conversion module, central processing module, display module and key control module, analog -to -digital conversion module's signal input part connects the enlarged output of amplifier, analog -to -digital conversion module's signal output part connects central processing module, the display module is connected to central processing module's demonstration end, key control module's signal output part is connected to central processing module's receiving terminal, this device can make the user independently accomplish the blood pressure and measure to can be shown clearly with blood pressure value, rhythm of the heart value that the person of facilitating the use looks over by survey person's blood pressure value, the while by the precision measurement.
Description
Technical field
This utility model relates to blood pressure measurement research and development technology field, particularly relates to a kind of high accuracy and can show potential measurement formula mercurial sphygmomanometer.
Background technology
At present, existing mercurial sphygmomanometer is configured with a cuff that can inflate, for the flowing of occlude blood.Doctor listens beating of pulse with a stethoscope, reads blood pressure number on graduation apparatus simultaneously.In the process that blood pressure measures, special medical personnel are needed to accompany operation, can proper use of stethoscope can accurately read survey reading.Thus, patient just can not use sphygomanometer independently, also needs the help by the external world accurately could read pressure value.Even the inadequate independent operation of patient, because the age of PATIENT POPULATION is relatively all larger, some eyes do not see Measurement scales, and some ears are unclear, will cause mistaken diagnosis, affect patient's emotion, there is unnecessary hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of high accuracy can show potential measurement formula mercurial sphygmomanometer, user complete independently blood pressure measurement can be made, and accurately can measure the pressure value of measured, pressure value, heart rate value are clearly shown, person easy to use checks simultaneously.
The technical solution adopted in the utility model is:
A kind of high accuracy can show potential measurement formula mercurial sphygmomanometer, and comprise cuff, pressure exerting arrangement and the hydrargyrum measuring mechanism that can inflate, pressure exerting arrangement is made up of air bag and airway; Hydrargyrum pressure measuring mechanism comprises the hydrargyrum cavity of hydrargyrum accumulator tank and cylindricality, passes through tubes connection between hydrargyrum accumulator tank and hydrargyrum cavity; Also comprise accurate measurement mechanism and signal processing indication mechanism, described accurate measurement mechanism comprises precision resistance sheet, precision resistance, power supply, balancing resistance and amplifier, precision resistance sheet connects hydrargyrum cavity tube wall by many electric conductors, the bottom of precision resistance sheet connects the first end of precision resistance, the second end ground connection of precision resistance; The electrode input end of amplifier connects power supply by balancing resistance, the negative input of amplifier connects the bottom of the bottom of precision resistance sheet, the first end of precision resistance and hydrargyrum cavity tube wall respectively by wire, the outfan of amplifier connects the top of precision resistance sheet, the signal input part of the outfan of amplifier also connection signal processes and displays mechanism; Described signal processing indication mechanism comprises analog-to-digital conversion module, central processing module, display module and key control module, the signal input part of analog-to-digital conversion module connects the amplification outfan of amplifier, the signal output part of analog-to-digital conversion module connects central processing module, the display end of central processing module connects display module, and the receiving terminal of central processing module connects the signal output part of key control module.
Many described electric conductors evenly arrange a row from top to bottom, and one end of electric conductor embeds in hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane; The other end of electric conductor connects precision resistance sheet.
One end of described wire embeds in hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane.
The electrode input end of described amplifier is by divider resistance ground connection.
Described electric conductor adopts conductive yarn or metal foil shred.
This utility model utilizes precision resistance sheet to connect mercury column by electric conductor, make precision resistance sheet, electric conductor and mercury column form path, by rising and the decline of mercury column, thus the resistance of precision resistance sheet is changed, and then change the amplification of in-phase amplifier, different amplifications changes the magnitude of voltage that amplifier exports, by amplifier, the signal of change is sent to central processing module again, by the process of central processing module, judge the hypertension value of measured, hypotension value and heart rate value, again these data are shown by display module, and by key control module query history record, person easy to use checks.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
As shown in Figure 1, this utility model comprises cuff, pressure exerting arrangement and the hydrargyrum measuring mechanism that can inflate, and pressure exerting arrangement is made up of air bag and airway; Hydrargyrum pressure measuring mechanism comprises the hydrargyrum cavity of hydrargyrum accumulator tank and cylindricality, passes through tubes connection between hydrargyrum accumulator tank and hydrargyrum cavity; It is characterized in that: also comprise accurate measurement mechanism and signal processing indication mechanism, described accurate measurement mechanism comprises precision resistance sheet, precision resistance, power supply, balancing resistance and amplifier, precision resistance sheet connects hydrargyrum cavity tube wall by many electric conductors, electric conductor adopts conductive yarn or metal foil shred, many electric conductors evenly arrange a row from top to bottom, one end of electric conductor embeds in hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane; The other end of electric conductor connects precision resistance sheet.The bottom of precision resistance sheet connects the first end of precision resistance, the second end ground connection of precision resistance; The electrode input end of amplifier connects power supply by balancing resistance, the electrode input end of amplifier is by divider resistance ground connection, the negative input of amplifier connects the bottom of the bottom of precision resistance sheet, the first end of precision resistance and hydrargyrum cavity tube wall respectively by wire, and the end of wire embeds the bottom inner portion of hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane.The outfan of amplifier connects the top of precision resistance sheet, the signal input part of the outfan of amplifier also connection signal processes and displays mechanism; Described signal processing indication mechanism comprises analog-to-digital conversion module, central processing module, display module and key control module, the signal input part of analog-to-digital conversion module connects the amplification outfan of amplifier, the signal output part of analog-to-digital conversion module connects central processing module, the display end of central processing module connects display module, and the receiving terminal of central processing module connects the signal output part of key control module.
Operation principle of the present utility model is described in detail below in conjunction with specific embodiment and accompanying drawing:
Can be seen by accompanying drawing 1, on the right side of the hydrargyrum cavity of cylindricality, evenly connect many electric conductors, 1,2 ..., N-2, N-1, N and N+1, make the spacing distance of every two electric conductors equal.The other end of many electric conductors is connected on precision resistance sheet, due to, electric conductor interval is equidistantly arranged, so, precision resistance sheet can be considered as and be on average divided into the equal resistor disc of N number of resistance from top to bottom, and in the present embodiment, make the resistance of these resistor discs equal with precision resistance.Operation principle of the present utility model is exactly after injecting hydrargyrum cavity by hydrargyrum, along with rising or the reduction of mercury column, the resistance of precision resistance sheet is changed, again the resistance information of change is converted to different output voltage signals by the process of amplifier, finally send to central processing module to process, then result is shown by display module.
When preparing to carry out human blood-pressure measurement, cuff bundle at measured's arm correct position, start to exert pressure to cuff inflation by the air bag of pressure exerting arrangement, along with the pressure increase of cuff, pressure conduction is to hydrargyrum reservoir, and promote hydrargyrum and enter in cylindricality hydrargyrum cavity, the mercury column liquid level of rising first mod sum label is the conductive contact of N+1, now, the output voltage of amplifier is unaffected; When mercury column liquid level continues to rise, and mercury column liquid level is higher than N, during lower than N-1, under room temperature, because the resistance value of hydrargyrum is very little, be equivalent to the resistor coupled in parallel between the resistance of this section of hydrargyrum and " N and N+1 ", because the resistance value of this section of hydrargyrum is below milliohm level, so, can using the hydrargyrum resistance in whole cylindricality hydrargyrum cavity length as short circuit process, like this, be equivalent to short circuit between N and N+1, the resistance of the amplification feedback resistance of in-phase amplifier is by original (N+1) R
fbecome NR
f, know according to amplifier principle:
The amplification of in-phase amplifier is:
So when there is N and N+1 short circuit, its amplification becomes N+1;
When N+1 and N-1 is short-circuited, amplification becomes N; So analogize, along with the continuation of mercury column liquid level is risen, until when N+1 and 1 short circuit, now, R
f=R
1, amplification becomes 2; Mark mercury column liquid level reaches maximum height.
After this, pressure exerting arrangement starts pressure release, and mercury column liquid level starts to decline, and amplification starts to increase progressively successively; By 2 until mercury column liquid level and N+1 disconnect, amplification rises to N+2 by 2 always;
The input voltage of amplifier is added in positive terminal, and its value is
;
When input voltage is given, output voltage changes with the change of amplification, thus causes the change of analog-to-digital conversion module input voltage, and then causes the data signal exported to change; These changes, because amplification is discrete numeral, cause the output voltage of amplifier also to present discrete change.But it presents relation one to one for amplification, and then, each analog-to-digital signal, corresponding relevant mercury pressure, thus the quicksilver water surface pressure of corresponding differing heights.
The process of voltage tester is as follows: when in mercury liquid level decline process, when hydraulic pressure corresponding to mercury liquid level is higher than human blood-pressure, the blood of human body can not flow through the air storage bag in cuff, so, do not have ambient pressure to disturb in the pressure release of air storage bag, the decline of mercury column presents the feature that steadily declines.
When hydrargyrum liquid level continues to decline, when the pressure of correspondence is less than human blood-pressure, the blood of human body oppresses the blood of human body through air storage bag when heart contraction, normally circulate, at this moment, the blood of circulation, through air storage bag, applies the pressure of a blood pulses, the intraluminal pressure of this pressure disturbances air storage bag when pressure release on the contrary to air storage bag, because the heart beating of people is ofer short duration, this pressure disturbances is also ofer short duration, after the rising causing air storage bag internal gas pressure of short duration, recovers again normal; Blood pressure corresponding during this hydraulic pressure first time pulsation, is called the systolic pressure of human heart, is also the hypertension value of human body.
Mercury column liquid level continue decline, gas storage intraluminal pressure when each heart beating, all once disturbance; This is because intraluminal pressure at this moment can not hinder the flowing of blood of human body, be subject to the pressure disturbance of human bloodstream simultaneously, produce the resilience of hydrargyrum liquid level in decline.
Along with the continuation of mercury column liquid level is fallen, the air pressure in air storage bag can not stop the circulation of blood of human body, and like this when heartbeat, blood of human body can be straightway by air storage bag, and each heart beating also can not cause the resilience of hydrargyrum liquid level.
When after the resilience occurring last hydrargyrum liquid level, again do not occur liquid level resilience, so, mercury column liquid level pressure corresponding during this last liquid level resilience is exactly the hypotension of the diastolic pressure of blood of human body, namely usually said human body.
Resilience is started until no longer in resilience during this period of time at hydrargyrum liquid level, because the heartbeat time interval of human body is almost fixing, we are in test blood pressure process, calculate the average time interval of each hydrargyrum liquid level resilience, just can calculate the palmic rate of human body, the namely heart rate of human body, and can in this parameter of display screen display of this device; And according to the large mere suggestion of heart rate value whether heart beating to overrun or excessively slow.
Claims (5)
1. high accuracy can show a potential measurement formula mercurial sphygmomanometer, and comprise cuff, pressure exerting arrangement and the hydrargyrum measuring mechanism that can inflate, pressure exerting arrangement is made up of air bag and airway; Hydrargyrum pressure measuring mechanism comprises the hydrargyrum cavity of hydrargyrum accumulator tank and cylindricality, passes through tubes connection between hydrargyrum accumulator tank and hydrargyrum cavity; It is characterized in that: also comprise accurate measurement mechanism and signal processing indication mechanism, described accurate measurement mechanism comprises precision resistance sheet, precision resistance, power supply, balancing resistance and amplifier, precision resistance sheet connects hydrargyrum cavity tube wall by many electric conductors, the bottom of precision resistance sheet connects the first end of precision resistance, the second end ground connection of precision resistance; The electrode input end of amplifier connects power supply by balancing resistance, the negative input of amplifier connects the bottom of the bottom of precision resistance sheet, the first end of precision resistance and hydrargyrum cavity tube wall respectively by wire, the outfan of amplifier connects the top of precision resistance sheet, the signal input part of the outfan of amplifier also connection signal processes and displays mechanism; Described signal processing indication mechanism comprises analog-to-digital conversion module, central processing module, display module and key control module, the signal input part of analog-to-digital conversion module connects the amplification outfan of amplifier, the signal output part of analog-to-digital conversion module connects central processing module, the display end of central processing module connects display module, and the receiving terminal of central processing module connects the signal output part of key control module.
2. high accuracy according to claim 1 can show potential measurement formula mercurial sphygmomanometer, it is characterized in that: many described electric conductors evenly arrange a row from top to bottom, one end of electric conductor embeds in hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane; The other end of electric conductor connects precision resistance sheet.
3. high accuracy according to claim 1 can show potential measurement formula mercurial sphygmomanometer, it is characterized in that: one end of described wire embeds in hydrargyrum cavity tube wall, and with hydrargyrum cavity inner tubal wall at same plane.
4. high accuracy according to claim 1 can show potential measurement formula mercurial sphygmomanometer, it is characterized in that: the electrode input end of described amplifier is by divider resistance ground connection.
5. high accuracy according to claim 1 can show potential measurement formula mercurial sphygmomanometer, it is characterized in that: described electric conductor adopts conductive yarn or metal foil shred.
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|---|---|---|---|
| CN201520909715.9U CN205144544U (en) | 2015-11-13 | 2015-11-13 | High accuracy can show potential measurement formula mercury sphygmomanometer |
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| CN201520909715.9U CN205144544U (en) | 2015-11-13 | 2015-11-13 | High accuracy can show potential measurement formula mercury sphygmomanometer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105249947A (en) * | 2015-11-13 | 2016-01-20 | 周常柱 | High-precision potential measurement displayable type riva-rocci sphygmomanometer |
-
2015
- 2015-11-13 CN CN201520909715.9U patent/CN205144544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105249947A (en) * | 2015-11-13 | 2016-01-20 | 周常柱 | High-precision potential measurement displayable type riva-rocci sphygmomanometer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |