CN204950969U - Blood oxygen saturability detection appearance convenient to control - Google Patents
Blood oxygen saturability detection appearance convenient to control Download PDFInfo
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- CN204950969U CN204950969U CN201520711112.8U CN201520711112U CN204950969U CN 204950969 U CN204950969 U CN 204950969U CN 201520711112 U CN201520711112 U CN 201520711112U CN 204950969 U CN204950969 U CN 204950969U
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- Prior art keywords
- converter
- blood oxygen
- oxygen saturation
- circuit
- transceiver
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000008280 blood Substances 0.000 title claims abstract description 39
- 210000004369 blood Anatomy 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 title abstract description 3
- 230000003750 conditioning effect Effects 0.000 claims abstract description 15
- 238000013519 translation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 description 19
- 238000005259 measurement Methods 0.000 description 10
- 230000010349 pulsation Effects 0.000 description 6
- 108010054147 Hemoglobins Proteins 0.000 description 4
- 102000001554 Hemoglobins Human genes 0.000 description 4
- 230000003321 amplification Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 239000002473 artificial blood Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 108010064719 Oxyhemoglobins Proteins 0.000 description 2
- 230000036772 blood pressure Effects 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000003994 anesthetic gas Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a blood oxygen saturability detection appearance convenient to control, including microprocessor, DA converter, AD converter, RF transceiver, LED drive circuit and photoelectric sensor, microprocessor connects DA converter, AD converter and RF transceiver simultaneously, still connects the RF antenna on the RF transceiver, the DA converter still connects gradually LED drive circuit, photoelectric sensor, amplifier, wave filter, signal conditioning circuit, voltage current converting circuit and integrating circuit, and integrating circuit still connects with the AD converter. The utility model discloses an above -mentioned principle is difficult for receiving the interference of other signals surveying the in -process, and measuring result can send through the RF antenna, need not the manual work and reads the record, has improved the efficiency of collecting the result, makes things convenient for the later stage control.
Description
Technical field
This utility model relates to Intensive Care Therapy field, is specifically related to the blood oxygen saturation detector being convenient to monitor.
Background technology
Since the custodial care facility appearance of the simple function that 20 century 70s have, it just progressively obtains the extensive use of clinical monitoring.But the custodial care facility of simple function is due to the limitation of its monitoring function, far can not meet the needs of clinical practice, seriously constrain the rescue of hospital to numerous critical patients.Enter the nineties, along with the development of sensing technology and electronic technology, monitored parameters is on the increase, and is guarded develop into multi-parameter monitoring by the single parameter in past.Such as guarded by single cardiac monitoring, blood pressure monitoring, blood oxygen saturation, progressively develop into the multi-parameter monitor comprising electrocardio, breathing, blood pressure, blood oxygen saturation, body temperature, End-tidal carbon dioxide, cardiac output and anesthetic gases analysis etc., these equipment just play positive effect in the diagnosis of hospital clinical.And the detection of blood oxygen saturation can judge that blood oxygen saturation is higher or on the low side, thus judge that whether patient is normal.Blood oxygen saturation refers to that hemoglobin is by oxygen-saturated percentage ratio, and namely the oxygen content of hemoglobin is multiplied by 100 with the ratio of oxygen binding capacity.Depend primarily on arterial partial pressure of oxygen (PO2).Blood oxygen saturation reflects the size of blood oxygen dividing potential drop indirectly, is the index understanding hemoglobin oxygen content degree and hemoglobin system buffer capacity.Therefore only need realize by detecting arterial blood when detecting.Existing blood oxygen saturation detects easily by other signal disturbing in measuring process, and last measurement result can only artificially collect, inefficiency, is unfavorable for that the later stage is monitored.
Utility model content
This utility model overcomes the deficiencies in the prior art, the blood oxygen saturation detector being convenient to monitor is provided, the interference of other signal is not subject in this detector testing process, measurement result can be sent by RF antenna, without the need to manually reading record, improve the efficiency of collecting result, facilitate the later stage to monitor.
For solving above-mentioned technical problem, this utility model is by the following technical solutions: be convenient to the blood oxygen saturation detector monitored, comprise microprocessor, D/A converter, A/D converter, RF transceiver, LED drive circuit and photoelectric sensor, described microprocessor connects D/A converter, A/D converter and RF transceiver simultaneously, and RF transceiver also connects RF antenna; Described D/A converter also connects LED drive circuit, photoelectric sensor, amplifier, wave filter, signal conditioning circuit, voltage-current converter circuit and integrating circuit successively, and integrating circuit is also connected with A/D converter.
In use, the drive singal of microprocessor timesharing produces wavelength to be the HONGGUANG of 660nm and wavelength the be infrared light of 940nm, after D/A conversion by signal transmission to LED drive circuit.This signal is carried out power amplification by LED drive circuit, then is sent to successively in HONGGUANG and infrared light emitting diode that photoelectric sensor upper arm places side by side, makes their utilizing emitted light pulses.The photoelectric sensor of underarm, will convert the signal of telecommunication to through the arterial vascular HONGGUANG of finger and infrared light.Because the concentration of the HbO2 Oxyhemoglobin HbO2 in blood and reproducibility Hb H b is done periodically to change along with the pulsation of blood, therefore they also change in pulsation the absorption of light, and the signal intensity causing photoelectric sensor to export thus also changes with HbO2 and the Hb concentration ratio pulsation in blood.The signal of telecommunication that photoelectric sensor exports is after amplification, filtering and signal conditioning circuit, ripple component in these two signals is separated, send into the voltage/current conversion circuit with automatic gain adjustment function, then by integrating circuit to signal code integration, convert digital signal to through A/D again, give microprocessor.For the data gathered, application Lambert-Beer's law, microprocessor just can calculate the size of blood oxygen saturation, thus measure blood oxygen saturation, compare with normal value, thus obtain the whether normal result of blood oxygen saturation, this measurement result can be sent measurement result and send to monitor terminal by RF antenna by the RF transceiver module arranged on the microprocessor, monitoring can be realized, and without using the artificial blood oxygen saturation result measured that reads, monitoring client is sent to again after arrangement, monitoring client also can send a signal to blood oxygen saturation detector simultaneously, because signal is fainter, monitoring efficiency is higher.Utilize amplifier to amplify to acquired signal in this device, also utilize wave filter to filter out interference noise simultaneously and utilize signal conditioning circuit again to process signal, thus finally obtain accurate clearly measuring-signal.
Connection data memorizer gone back by described microprocessor.The blood oxygen saturation information measured can be stored, and stored by the information that RF antenna transmission is come, avoid the loss of information.
The model of described RF transceiver is AD9361.The RF Transceiver Transmit distance of this kind of model, transmitting-receiving speed is fast, is very suitable for monitoring field and uses.
Described photoelectric sensor is finger cot type photoelectric sensor.This kind of photoelectric sensor to be conveniently enclosed within human body and not easily landing, ensures the accuracy measured further.
Described signal conditioning circuit is the signal conditioning circuit that can carry out signal base line level translation and go DC component.The final measuring-signal of further guarantee accurate.
Described microprocessor model is C8051F020.Be fully-integrated mixed-signal system level MCU chip, there are 64 digital I/O pins or 32 digital I/O pins, measurement needs can be met completely.
Compared with prior art, the beneficial effects of the utility model are:
1, because signal is fainter, in this device, utilize amplifier to amplify to acquired signal, also utilize wave filter to filter out interference noise simultaneously and utilize signal conditioning circuit again to process signal, thus finally obtain accurate clearly measuring-signal.
2, this measurement result can be sent measurement result and send to monitor terminal by RF antenna by the RF transceiver module arranged on the microprocessor, monitoring can be realized, and without using the artificial blood oxygen saturation result measured that reads, monitoring client is sent to again after arrangement, monitoring client also can send a signal to blood oxygen saturation detector simultaneously, because signal is fainter, monitoring efficiency is higher.
3, the setting of data storage, can be stored the blood oxygen saturation information measured, and is stored by the information that RF antenna transmission is come, avoid the loss of information.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present utility model.
Detailed description of the invention
Be further elaborated this utility model below in conjunction with accompanying drawing, embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, this utility model comprises microprocessor, D/A converter, A/D converter, RF transceiver, LED drive circuit and photoelectric sensor, described microprocessor connects D/A converter, A/D converter and RF transceiver simultaneously, and RF transceiver also connects RF antenna; Described D/A converter also connects LED drive circuit, photoelectric sensor, amplifier, wave filter, signal conditioning circuit, voltage-current converter circuit and integrating circuit successively, and integrating circuit is also connected with A/D converter.
In use, the drive singal of microprocessor timesharing produces wavelength to be the HONGGUANG of 660nm and wavelength the be infrared light of 940nm, after D/A conversion by signal transmission to LED drive circuit.This signal is carried out power amplification by LED drive circuit, then is sent to successively in HONGGUANG and infrared light emitting diode that photoelectric sensor upper arm places side by side, makes their utilizing emitted light pulses.The photoelectric sensor of underarm, will convert the signal of telecommunication to through the arterial vascular HONGGUANG of finger and infrared light.Because the concentration of the HbO2 Oxyhemoglobin HbO2 in blood and reproducibility Hb H b is done periodically to change along with the pulsation of blood, therefore they also change in pulsation the absorption of light, and the signal intensity causing photoelectric sensor to export thus also changes with HbO2 and the Hb concentration ratio pulsation in blood.The signal of telecommunication that photoelectric sensor exports is after amplification, filtering and signal conditioning circuit, ripple component in these two signals is separated, send into the voltage/current conversion circuit with automatic gain adjustment function, then by integrating circuit to signal code integration, convert digital signal to through A/D again, give microprocessor.For the data gathered, application Lambert-Beer's law, microprocessor just can calculate the size of blood oxygen saturation, thus measure blood oxygen saturation, compare with normal value, thus obtain the whether normal result of blood oxygen saturation, this measurement result can be sent measurement result and send to monitor terminal by RF antenna by the RF transceiver module arranged on the microprocessor, monitoring can be realized, and without using the artificial blood oxygen saturation result measured that reads, monitoring client is sent to again after arrangement, monitoring client also can send a signal to blood oxygen saturation detector simultaneously, because signal is fainter, monitoring efficiency is higher.Utilize amplifier to amplify to acquired signal in this device, also utilize wave filter to filter out interference noise simultaneously and utilize signal conditioning circuit again to process signal, thus finally obtain accurate clearly measuring-signal.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: connection data memorizer gone back by described microprocessor.The blood oxygen saturation information measured can be stored, and stored by the information that RF antenna transmission is come, avoid the loss of information.
The model of described RF transceiver is AD9361.The RF Transceiver Transmit distance of this kind of model, transmitting-receiving speed is fast, is very suitable for monitoring field and uses.
Described photoelectric sensor is finger cot type photoelectric sensor.This kind of photoelectric sensor to be conveniently enclosed within human body and not easily landing, ensures the accuracy measured further.
Described signal conditioning circuit is the signal conditioning circuit that can carry out signal base line level translation and go DC component.The final measuring-signal of further guarantee accurate.
Described microprocessor model is C8051F020.Be fully-integrated mixed-signal system level MCU chip, there are 64 digital I/O pins or 32 digital I/O pins, measurement needs can be met completely.
Just this utility model can be realized as mentioned above.
Claims (6)
1. be convenient to the blood oxygen saturation detector monitored, it is characterized in that: comprise microprocessor, D/A converter, A/D converter, RF transceiver, LED drive circuit and photoelectric sensor, described microprocessor connects D/A converter, A/D converter and RF transceiver simultaneously, and RF transceiver also connects RF antenna; Described D/A converter also connects LED drive circuit, photoelectric sensor, amplifier, wave filter, signal conditioning circuit, voltage-current converter circuit and integrating circuit successively, and integrating circuit is also connected with A/D converter.
2. the blood oxygen saturation detector being convenient to monitor according to claim 1, is characterized in that: connection data memorizer gone back by described microprocessor.
3. the blood oxygen saturation detector being convenient to monitor according to claim 1, is characterized in that: the model of described RF transceiver is AD9361.
4. the blood oxygen saturation detector being convenient to monitor according to claim 1, is characterized in that: described photoelectric sensor is finger cot type photoelectric sensor.
5. the blood oxygen saturation detector being convenient to monitor according to claim 1, is characterized in that: described signal conditioning circuit is the signal conditioning circuit that can carry out signal base line level translation and go DC component.
6. the blood oxygen saturation detector being convenient to monitor according to claim 1, is characterized in that: described microprocessor model is C8051F020.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711112.8U CN204950969U (en) | 2015-09-15 | 2015-09-15 | Blood oxygen saturability detection appearance convenient to control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520711112.8U CN204950969U (en) | 2015-09-15 | 2015-09-15 | Blood oxygen saturability detection appearance convenient to control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204950969U true CN204950969U (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520711112.8U Expired - Fee Related CN204950969U (en) | 2015-09-15 | 2015-09-15 | Blood oxygen saturability detection appearance convenient to control |
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| CN (1) | CN204950969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105054943A (en) * | 2015-09-15 | 2015-11-18 | 成都汉康信息产业有限公司 | Oxyhemoglobin saturation detection terminal bringing convenience to monitoring |
-
2015
- 2015-09-15 CN CN201520711112.8U patent/CN204950969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105054943A (en) * | 2015-09-15 | 2015-11-18 | 成都汉康信息产业有限公司 | Oxyhemoglobin saturation detection terminal bringing convenience to monitoring |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 |