CN2442632Y - Electronic sphygmomanometer - Google Patents
Electronic sphygmomanometer Download PDFInfo
- Publication number
- CN2442632Y CN2442632Y CN 00256143 CN00256143U CN2442632Y CN 2442632 Y CN2442632 Y CN 2442632Y CN 00256143 CN00256143 CN 00256143 CN 00256143 U CN00256143 U CN 00256143U CN 2442632 Y CN2442632 Y CN 2442632Y
- Authority
- CN
- China
- Prior art keywords
- control circuit
- resistance
- electronic control
- air bag
- capacitor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electronic sphygmomanometer, which belongs to the applied technical field of electronic technology. The electronic sphygmomanometer is composed of an inflatable balloon, an air bag, a cuff, a barometer, a listening head, a sensor, an electronic control circuit and an earphone, wherein, the inflatable balloon, the air bag and the barometer are connected via an inflation pipe, and the air bag and the listening head are fixed in the cuff. The listening is arranged between the cuff and the air bag, the sensor and the electronic control circuit are connected, the listening head, the electronic control circuit and the barometer are arranged on one casing, and the output end of the electronic control circuit and the earphone are connected. The utility model has the advantages of easy personal test, accurate test value, small size and low fabrication cost.
Description
This utility model relates to a kind of sphygomanometer, belongs to the application of electronic technology technical field.
The mercury column sphygmomanometer of extensive use at present, it is more accurate to measure blood pressure, but is not easy to test oneself.The digital display type automatic sphygmomanometer of at present homemade or import, most measurement error are bigger, and hypertensive patient's automatic control blood pressure that is used to test oneself is very unreliable.
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of being convenient to test oneself, and does not need to be with in addition stethoscope, and it is accurate to measure numerical value, and cost is low, volume is little, portable electric sphygmomanometer.
The purpose of this utility model is finished by following technical measures:
The electric sphygmomanometer of forming by aerating ballon, air bag, cuff, air gauge, can, pick off, electronic control circuit and earphone, balloon, air bag and air gauge by gas tube be connected, air bag and can be fixed in the cuff, can is between cuff and air bag, can is connected by air conduit with pick off, pick off is connected with electronic control circuit, pick off, electronic control circuit and air gauge are installed in the housing, and the outfan of electronic control circuit is connected with earphone.
Electronic control circuit is made up of preamplifier, gain controller and power amplifier, and preamplifier is made up of audion BG and Resistor-Capacitor Unit, the base stage connecting resistance R of BG
1And R
2And capacitor C
1, capacitor C
1Connect pick off, resistance R
2Ground connection, resistance R
1Other end connecting resistance R
3, R
5And capacitor C
2, capacitor C
2Other end ground connection, resistance R
3The colelctor electrode of another termination BG, R
5Another termination power, the emitter stage of BG passes through resistance R
4Ground connection, the colelctor electrode of BG passes through capacitor C
3Connect gain controller and power amplifier.
Resistance R
1, R
2, R
3, R
4And R
5Resistance be respectively 18～22K Ω, 6.8～10K Ω, 1～3K Ω, 80～150 Ω and 810 Ω～1.5K Ω.
Capacitor C
1, C
2And C
3Capacitance be respectively 3.7～6.8 μ F, 370～680 μ F and 8～12 μ F.
During use, cuff is contained in patient's arm ancon, with aerating ballon is that airbag aeration is measured blood pressure, in charging and discharging the process of gas, the variation of gasbag pressure is by being positioned at can under the air bag with the dancing signal input pickup of pulsation, and data presented is determined the blood pressure range of oneself on sound variation that preamplifier, gain controller, the big device input of power amplification earphone, patient can spread out of by earphone and air gauge.
This utility model adopts the measuring principle of mercury column sphygomanometer, improves signal to noise ratio by electronic circuit, replaces original stethoscope with earphone, and patient can measure the blood pressure of oneself voluntarily, has to be convenient to test oneself, measure the advantage that numerical value is accurate, volume is little, cost is low.
Below be the description of drawings book:
Fig. 1 is a block diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of preamplifier in this utility model.
Wherein, 1, aerating ballon, 2, air gauge, 3, air bag, 4, can, 5, pick off, 6, preamplifier, 7, gain controller, 8, power amplifier, 9, earphone, 10, power supply, 11, switch.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment: structure of the present utility model as shown in Figure 1, preamplifier is as shown in Figure 2.Balloon 1, air bag 3 and air gauge 2 are connected by gas tube, air bag 3 and can 4 are fixed in the cuff, can 4 is between cuff and air bag 3, can 4 and pick off 5 are connected by air conduit, pick off 5 is connected successively with preamplifier 6, gain controller 7, power amplifier 8, and the outfan of power amplifier 8 is connected with earphone 9.In preamplifier 6, audion BG is with 9014 type audions, resistance R
1, R
2, R
3, R
4And R
5Resistance be respectively 20K Ω, 8.5K Ω, 2K Ω, 100 Ω and 1K Ω; Capacitor C
1, C
2And C
3Capacitance be respectively 4.7 μ F, 470 μ F and 10 μ F.
Claims (4)
1. electric sphygmomanometer, form by aerating ballon, air bag, cuff, can, air gauge, balloon, air bag and air gauge are connected by gas tube, it is characterized in that, also be provided with pick off, electronic control circuit and earphone, air bag and can are fixed in the cuff, can is between cuff and air bag, can is connected by air conduit with pick off, pick off is connected with electronic control circuit, pick off, electronic control circuit and air gauge are installed in the housing, and the outfan of electronic control circuit is connected with earphone.
2. electric sphygmomanometer according to claim 1 is characterized in that described electronic control circuit is made up of preamplifier, gain controller and power amplifier, and preamplifier is made up of audion BG and Resistor-Capacitor Unit, the base stage connecting resistance R of BG
1And R
2And capacitor C
1, capacitor C
1Connect pick off, resistance R
2Ground connection, resistance R
1Other end connecting resistance R
3, R
5And capacitor C
2, capacitor C
2Other end ground connection, resistance R
3The colelctor electrode of another termination BG, R
5Another termination power, the emitter stage of BG passes through resistance R
4Ground connection, the colelctor electrode of BG passes through capacitor C
3Connect gain controller and power amplifier.
3. electric sphygmomanometer according to claim 1 and 2 is characterized in that, described resistance R
1, R
2, R
3, R
4And R
5Resistance be respectively 18～22K Ω, 6.8～10K Ω, 1～3K Ω, 80～150 Ω and 810 Ω～1.5K Ω.
4. electric sphygmomanometer according to claim 1 and 2 is characterized in that, described capacitor C
1, C
2And C
3Capacitance be respectively 3.7～6.8 μ F, 370～680 μ F and 8～12 μ F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256143 CN2442632Y (en) | 2000-10-27 | 2000-10-27 | Electronic sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00256143 CN2442632Y (en) | 2000-10-27 | 2000-10-27 | Electronic sphygmomanometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2442632Y true CN2442632Y (en) | 2001-08-15 |
Family
ID=33612919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00256143 Expired - Fee Related CN2442632Y (en) | 2000-10-27 | 2000-10-27 | Electronic sphygmomanometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2442632Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313048C (en) * | 2002-05-14 | 2007-05-02 | 欧姆龙健康医疗事业株式会社 | Evaluating device for blood vessel inner skin cell function |
-
2000
- 2000-10-27 CN CN 00256143 patent/CN2442632Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313048C (en) * | 2002-05-14 | 2007-05-02 | 欧姆龙健康医疗事业株式会社 | Evaluating device for blood vessel inner skin cell function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |