CN105054943A - Oxyhemoglobin saturation detection terminal bringing convenience to monitoring - Google Patents
Oxyhemoglobin saturation detection terminal bringing convenience to monitoring Download PDFInfo
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- CN105054943A CN105054943A CN201510583117.1A CN201510583117A CN105054943A CN 105054943 A CN105054943 A CN 105054943A CN 201510583117 A CN201510583117 A CN 201510583117A CN 105054943 A CN105054943 A CN 105054943A
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Abstract
The invention discloses an oxyhemoglobin saturation detection terminal bringing convenience to monitoring. The oxyhemoglobin saturation detection terminal comprises a microprocessor, a D/A converter, an A/D converter, an R/F transceiver, an LED driving circuit and a photoelectric sensor. The microprocessor is connected with the D/A converter, the A/D converter and the R/F transceiver at the same time. An RF antenna is further connected to the RF transceiver. The D/A converter is further connected with the LED driving circuit, the photoelectric sensor, an amplifier, a filter, a signal conditioning circuit, a voltage-current conversion circuit and an integral circuit in sequence. The integral circuit is further connected with the A/D converter. By means of the principle, the oxyhemoglobin saturation detection terminal is not prone to being disturbed by other signals, the measured result can be transmitted through the RF antenna, manual record reading is avoided, the result collecting efficiency is improved, and convenience is brought to later-period monitoring.
Description
Technical field
The present invention relates to Intensive Care Therapy field, be specifically related to the blood oxygen saturation sense terminals 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.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, the blood oxygen saturation sense terminals 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, the present invention is by the following technical solutions: be convenient to the blood oxygen saturation sense terminals 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 invention has the beneficial effects as follows:
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 invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further elaborated, and embodiments of the invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, the present invention includes 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 invention can be realized as mentioned above.
Claims (6)
1. be convenient to the blood oxygen saturation sense terminals 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 sense terminals 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 sense terminals 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 sense terminals 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 sense terminals 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 sense terminals being convenient to monitor according to claim 1, is characterized in that: described microprocessor model is C8051F020.
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| CN201510583117.1A CN105054943A (en) | 2015-09-15 | 2015-09-15 | Oxyhemoglobin saturation detection terminal bringing convenience to monitoring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748729A (en) * | 2017-10-16 | 2018-03-02 | 深圳市合信自动化技术有限公司 | A kind of absolute value encoder and the method, apparatus handled its output signal |
| CN108784710A (en) * | 2018-06-27 | 2018-11-13 | 常州市第人民医院 | A kind of blood oxygen saturation monitoring instrument based on Radio Transmission Technology |
| CN108836355A (en) * | 2018-06-27 | 2018-11-20 | 莫毓昌 | A kind of embedded type household medical treatment blood oxygen saturation acquisition terminal and its acquisition method |
| CN113304376A (en) * | 2021-06-30 | 2021-08-27 | 中国人民解放军联勤保障部队第九六二医院 | Portable oxygen generation and respiration all-in-one machine for clinical anesthesia process and use method |
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| CN101791214A (en) * | 2010-01-19 | 2010-08-04 | 天津工程师范学院 | Community health-oriented portable monitoring system |
| US20130137946A1 (en) * | 2011-11-30 | 2013-05-30 | Nellcor Puritan Bennett Llc | Medical device with conditional power consumption |
| US20130296669A1 (en) * | 2012-05-02 | 2013-11-07 | Nellcor Puritan Bennett Llc | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same |
| CN204950969U (en) * | 2015-09-15 | 2016-01-13 | 成都汉康信息产业有限公司 | Blood oxygen saturability detection appearance convenient to control |
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2015
- 2015-09-15 CN CN201510583117.1A patent/CN105054943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101791214A (en) * | 2010-01-19 | 2010-08-04 | 天津工程师范学院 | Community health-oriented portable monitoring system |
| US20130137946A1 (en) * | 2011-11-30 | 2013-05-30 | Nellcor Puritan Bennett Llc | Medical device with conditional power consumption |
| US20130296669A1 (en) * | 2012-05-02 | 2013-11-07 | Nellcor Puritan Bennett Llc | Wireless, Reusable, Rechargeable Medical Sensors and System for Recharging and Disinfecting the Same |
| CN204950969U (en) * | 2015-09-15 | 2016-01-13 | 成都汉康信息产业有限公司 | Blood oxygen saturability detection appearance convenient to control |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748729A (en) * | 2017-10-16 | 2018-03-02 | 深圳市合信自动化技术有限公司 | A kind of absolute value encoder and the method, apparatus handled its output signal |
| CN108784710A (en) * | 2018-06-27 | 2018-11-13 | 常州市第人民医院 | A kind of blood oxygen saturation monitoring instrument based on Radio Transmission Technology |
| CN108836355A (en) * | 2018-06-27 | 2018-11-20 | 莫毓昌 | A kind of embedded type household medical treatment blood oxygen saturation acquisition terminal and its acquisition method |
| CN113304376A (en) * | 2021-06-30 | 2021-08-27 | 中国人民解放军联勤保障部队第九六二医院 | Portable oxygen generation and respiration all-in-one machine for clinical anesthesia process and use method |
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Application publication date: 20151118 |