CN205286366U - Physiological monitoring device - Google Patents
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- CN205286366U CN205286366U CN201620008935.9U CN201620008935U CN205286366U CN 205286366 U CN205286366 U CN 205286366U CN 201620008935 U CN201620008935 U CN 201620008935U CN 205286366 U CN205286366 U CN 205286366U
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- 238000012806 monitoring device Methods 0.000 title abstract 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 99
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 51
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 48
- 239000008280 blood Substances 0.000 claims abstract description 39
- 210000004369 blood Anatomy 0.000 claims abstract description 37
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000004020 luminiscence type Methods 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052760 oxygen Inorganic materials 0.000 abstract description 18
- 239000001301 oxygen Substances 0.000 abstract description 18
- 208000006545 Chronic Obstructive Pulmonary Disease Diseases 0.000 abstract description 8
- UBAZGMLMVVQSCD-UHFFFAOYSA-N carbon dioxide;molecular oxygen Chemical compound O=O.O=C=O UBAZGMLMVVQSCD-UHFFFAOYSA-N 0.000 abstract 1
- 210000003491 skin Anatomy 0.000 description 13
- 108010064719 Oxyhemoglobins Proteins 0.000 description 12
- 230000008859 change Effects 0.000 description 8
- 108010054147 Hemoglobins Proteins 0.000 description 6
- 102000001554 Hemoglobins Human genes 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000004868 gas analysis Methods 0.000 description 3
- 238000013508 migration Methods 0.000 description 3
- 230000005012 migration Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910003798 SPO2 Inorganic materials 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000010365 information processing Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 206010006458 Bronchitis chronic Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 208000033240 Progressive symmetric erythrokeratodermia Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 208000007451 chronic bronchitis Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000024883 vasodilation Effects 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 physiological monitoring device. The device includes: send out light detector, photosensitive receiver, heater, carbon dioxide detector, signal processor, terminal display and transmitter. This physiological monitoring device on near infrared detects the basis of tissue blood oxygen saturation, has increased the function of percutaneous non -invasive detection carbon dioxide partial pressure, makes the detection function of device more perfect, is applicable to the continuous monitor of COPD patient's state of an illness more. And, the device low in cost, portable good, it is heavy to have broken away from present desk -top percutaneous oxygen carbon dioxide partial pressure monitor, can not follow the light easily movable's of patient shortcoming, satisfies basic medical unit's demand.
Description
Technical field
This utility model relates to medical instruments field, in particular it relates to semiotic monitor.
Background technology
Chronic obstructive pulmonary disease (COPD) is a kind of disease with flow limitation feature, the not fully reversible property of flow limitation, the development in Progressive symmetric erythrokeratodermia, it occurs development closely related with chronic bronchitis and emphysema. In recent years, the incidence and mortality of COPD is still in rising trend in the world. According to present case it is expected that to the year two thousand twenty, COPD, by from the 6th of the nineteen ninety whole world cause of death rise to the year two thousand twenty the 3rd, becomes the 5th of world's disease financial burden. Clinically the significant monitoring index that diagnoses and treats of COPD is had: acid-base value (PH), partial pressure of carbon dioxide (PCO2), partial pressure of oxygen (PO2), aninon gap (AG), residue alkali (BE) etc., the monitoring of above index currently mainly relies on invasive arterial blood gas analysis and non-invasive ohmeda 3700 pulse oxmeter. Wherein, invasive arterial blood gas analysis instrument is by the restriction of external environment such as temperature, humidity and air pressure, and blood gas analysis is that the invasive inspection arterypuncture level of medical personnel and the peripheral arterial of patient are beaten requirement is higher. Further, the important indicator blood oxygen saturation of COPD detection and partial pressure of carbon dioxide need to be detected respectively by two instruments, and the detection for clinical indices brings very big inconvenience.
Thus, the device of detection blood oxygen saturation and partial pressure of carbon dioxide haves much room for improvement.
Utility model content
This utility model is intended at least solve one of technical problem of existence in prior art. For this, a purpose of the present utility model is in that to propose a kind of semiotic monitor, and this device can detect blood oxygen saturation and partial pressure of carbon dioxide non-invasively, quickly and easily simultaneously, so that COPD disease is diagnosed and continuous detecting by clinic, and, volume is little, good portability, cost is low.
Thus, according to an aspect of the present utility model, this utility model provides a kind of semiotic monitor. According to embodiment of the present utility model, this device includes: detection of luminescence device, is used for launching HONGGUANG and infrared light, and detects the body surface absorption information to described HONGGUANG and described infrared light; Photoreceiver, described photoreceiver is connected with described detection of luminescence device, for the absorption information of described HONGGUANG and infrared light is changed into first signal of telecommunication;Heater, for skin surface is heated, and monitors body surface skin temperature, makes carbon dioxide in blood overflow external, in order to obtain the carbon dioxide overflowed; Carbon dioxide indicator, described carbon dioxide indicator is connected with described heater, for detecting the concentration information of the carbon dioxide of described spilling, and the concentration information of the carbon dioxide of described spilling is changed into second signal of telecommunication; Signal processor, described signal processor is connected with described photoreceiver and described carbon dioxide indicator respectively, for being analyzed described first signal of telecommunication and described second signal of telecommunication processing, in order to obtain partial pressure of carbon dioxide information in blood oxygen saturation information and blood; Terminal display, is used for showing partial pressure of carbon dioxide information in described blood oxygen saturation information and described blood, and receives external information processing instruction; And transmitter, described transmitter is connected with described signal processor and described terminal display respectively, for partial pressure of carbon dioxide information in described blood oxygen saturation information and described blood is sent to described terminal display, and the described external command received by described terminal display is sent to described signal processor.
Semiotic monitor according to this utility model embodiment, it is possible to simultaneously detect partial pressure of carbon dioxide information in blood oxygen saturation information and blood, is more applicable for the continuous monitoring of the COPD patient state of an illness. Further, this apparatus cost is cheap, good portability, has broken away from current desk-top percutaneous oxygen/partial pressure of carbon dioxide monitor heavy, it is impossible to the shortcoming that patient moves easily, meet the demand of basic medical unit.
Optionally, the wavelength of described HONGGUANG is 600-700nm, and the wavelength of described infrared light is 900-1000nm.
Optionally, the wavelength of described HONGGUANG is 660nm, and the wavelength of described infrared light is 940nm.
Optionally, this device farther includes: temperature controller, and described temperature controller is connected with described heater, is used for controlling described heater and heats described skin surface to 40-45 degree Celsius.
Optionally, this device farther includes: signal amplifier, described signal amplifier is connected with described photoreceiver, described carbon dioxide indicator and described signal processor respectively, for being amplified described first signal of telecommunication and described second signal of telecommunication processing, in order to first signal of telecommunication after being amplified and second signal of telecommunication after amplifying.
Optionally, described carbon dioxide indicator is arranged on the surface of described heater.
Optionally, described second signal of telecommunication is current signal or voltage signal.
Optionally, the intensity of described current signal is 4-20 milliampere.
Optionally, described terminal display is computer, mobile phone or Internet server.
Optionally, described transmitter is GPRS Wireless Transmitter, Bluetooth transmission device or WIFI Wireless Transmitter.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become apparent from the description below, or is recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from conjunction with will be apparent from easy to understand the accompanying drawings below description to embodiment, wherein:
Fig. 1 shows the structural representation of the semiotic monitor according to one embodiment of this utility model;
Fig. 2 shows the structural representation of the semiotic monitor according to one embodiment of this utility model;
Fig. 3 shows the structural representation of the semiotic monitor according to one embodiment of this utility model.
Detailed description of the invention
Being described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of same or like function from start to finish. The embodiment described below with reference to accompanying drawing is illustrative of, and is only used for explaining this utility model, and it is not intended that to restriction of the present utility model.
In description of the present utility model, term " longitudinal direction ", " transverse direction ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of description this utility model rather than require this utility model must with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
It should be noted that term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic. Thus, define " first ", the feature of " second " can express or implicitly include one or more these features. Further, in description of the present utility model, except as otherwise noted, " multiple " are meant that two or more.
According to an aspect of the present utility model, this utility model provides a kind of semiotic monitor. Below according to embodiment of the present utility model, the principle that this device detects blood oxygen saturation and partial pressure of carbon dioxide illustrates, specific as follows:
This device, by detecting the blood change to absorbing amount, measures HbO2 Oxyhemoglobin (HbO2) account for the percentage ratio of whole hemoglobin (Hb), thus directly trying to achieve blood oxygen saturation and (SPO2). Owing to different wave length incident illumination is had different absorbances by HbO2 Oxyhemoglobin and non-HbO2 Oxyhemoglobin, device sends HONGGUANG and infrared light, when monochromatic light vertical irradiation human body, the absorbtivity of light will be beaten with transmission region arteries and changed by arterial blood, will transmit through the HONGGUANG of finger by photoreceptor and infrared light converts the signal of telecommunication to.
The detection of partial pressure of carbon dioxide is based on air permeable skin properties and carries out, partial pressure of carbon dioxide (p (CO in percutaneous measurement blood2)) time, first skin to be heated, heating makes peripheral vasodilation, and the transparent performance of gas permeation epidermis improves, and the CO produced by skin2Gas flow is far below the CO carried through blood2Gas flow, therefore when skin heating is extremely congested, CO in skin histology2Partial pressure is close to arterial blood CO2Partial pressure. Heating can make CO in skin to 40 DEG C��45 DEG C2Rapidly diffuse into electrode place, by detecting CO in skin2Dividing potential drop is thus to tremulous pulse p (CO2) detect.
With reference to Fig. 1, according to embodiment of the present utility model, this semiotic monitor is explained, and this device includes detection of luminescence device 100, photoreceiver 200, heater 300, carbon dioxide indicator 400, signal processor 500, terminal display 700 and transmitter 600.
According to embodiment of the present utility model, detection of luminescence device, it is used for launching HONGGUANG and infrared light, and detects the body surface absorption information to HONGGUANG and infrared light.By detecting the blood change to absorbing amount, measure HbO2 Oxyhemoglobin (HbO2) account for the percentage ratio of whole hemoglobin (Hb), thus directly trying to achieve blood oxygen saturation and (SPO2). In embodiment of the present utility model, utilize spectroscopy measurements human body hemoglobin by detection of luminescence device, the detection by quantitative substantially in strong scattering medium, light absorbed. Biological tissue by different size, heterogeneity cell and what intercellular substance formed, wherein, absorption and the scattering of light exist simultaneously, and scattering process is more than Absorption, is optically referred to as turbid media. Owing to tissue is a kind of strong scattering medium, there is Multiple Scattering after entering tissue in photon, its direct of travel constantly changes, and passed is a tortuous propagation path. Photon can describe by random migration theory at in-house transition process, and namely single photon constantly collides in transition process, and collision is not only with absorption every time, it also occur that change the scattering of migratory direction. If primary scattering is collided as once migrating, then the step-length every time migrated is random, by front once move to after the direction change that once migrates also be random. Thus, detection of luminescence device sends HONGGUANG and infrared light, HbO2 Oxyhemoglobin and non-HbO2 Oxyhemoglobin has different absorbances to different wave length HONGGUANG and infrared light, thereby through the detection blood change to absorbing amount, measures HbO2 Oxyhemoglobin (HbO2) account for the percentage ratio of whole hemoglobin (Hb).
According to embodiment of the present utility model, the wavelength of HONGGUANG is 600-700nm, and the wavelength of infrared light is 900-1000nm. Thus, HbO2 Oxyhemoglobin and non-HbO2 Oxyhemoglobin are good to HONGGUANG and the infrared light absorbent of this wave-length coverage, it is easy to the detection blood change to absorbing amount, thus ensureing the accuracy of blood oxygen saturation and result.
According to embodiment of the present utility model, the wavelength of HONGGUANG is 660nm, and the wavelength of infrared light is 940nm. Thus, HbO2 Oxyhemoglobin and non-HbO2 Oxyhemoglobin are to the HONGGUANG of this wavelength and infrared light absorbent more preferably, it is easier to the detection blood change to absorbing amount, thus the accuracy of blood oxygen saturation and result is higher.
According to embodiment of the present utility model, photoreceiver 200 is connected with detection of luminescence device 100, for the absorption information of HONGGUANG and infrared light is changed into first signal of telecommunication. When measuring hemoglobin concentration, detection of luminescence device 100 and photoreceiver 200 are at intervals put in body surface a part, the transmission of photons outer tissue sent by light source enters detected part, through the scattering of tissue, always have sub-fraction photon and received by photoreceiver 200 after tortuous migration path. A large amount of statistical results show, due to the impact of scattering, photon is random migration process between 200 from light source to photoreceiver. Briefly, infrared light launched by infrared illuminator, and light sensor receives the infrared light through human body, and converts optical signals to the signal of telecommunication.
According to embodiment of the present utility model, photoreceiver 200 and detection of luminescence device 100 collectively form gripping finger formula HbO2 Oxyhemoglobin detection part, HONGGUANG and infrared light is sent as injecting light source by detection of luminescence device 100, utilize finger as the transparent vessel containing hemoglobin, measure the light conductive strength by finger.
According to embodiment of the present utility model, heater 300 is for being heated skin surface, and monitors body surface skin temperature, makes carbon dioxide in blood overflow external, in order to obtain the carbon dioxide overflowed.Thus, it is that carbon dioxide in blood overflows by heating, it is not necessary to partial pressure of carbon dioxide can be detected by arterypuncture.
With reference to Fig. 2, according to embodiment of the present utility model, this device farther includes: temperature controller 800, and this temperature controller 800 is connected with heater 300, is used for controlling heater 300 and heats skin surface to 40-45 degree Celsius. Owing to heating skin to 40 DEG C-45 DEG C, CO in skin can be made2Rapidly diffuse into electrode place, it is simple to by detecting CO in skin2Dividing potential drop is thus detecting tremulous pulse p (CO2).
According to embodiment of the present utility model, carbon dioxide indicator 400 is connected with heater 300, for detecting the concentration information of the carbon dioxide of spilling, and the concentration information of the carbon dioxide of described spilling is changed into second signal of telecommunication.
According to embodiment of the present utility model, carbon dioxide indicator 400 is arranged on the surface of heater 300. Thus, the testing result of partial pressure of carbon dioxide is more accurate.
According to embodiment of the present utility model, described second signal of telecommunication is current signal or voltage signal. Thus, it is simple to signal is analyzed.
According to embodiment of the present utility model, the intensity of described current signal is 4-20 milliampere. Thus, it is simple to signal is analyzed.
According to embodiment of the present utility model, signal processor 500 is connected with photoreceiver 200 and carbon dioxide indicator 400 respectively, for being analyzed described first signal of telecommunication and described second signal of telecommunication processing, obtain partial pressure of carbon dioxide information in blood oxygen saturation information and blood. According to embodiment of the present utility model, signal processor 500 can include chip, voltage comparator and encoder. Wherein, chip internal demarcates the carbon dioxide concentration value that good different voltage is corresponding, relatively draws corresponding gas concentration lwevel by voltage comparator, and is sent to light-emitting diode display and mobile phone A PP. Voltage comparator relatively carrys out self-catalysis carbon dioxide sensor and light sensor transmits the voltage that the voltage signal come sets with chip internal, draws the carbon dioxide concentration value corresponding to this voltage.
With reference to Fig. 3, according to embodiment of the present utility model, this device farther includes: signal amplifier 900, this signal amplifier 900 is connected with photoreceiver 200, carbon dioxide indicator 400 and signal processor 500 respectively, for first signal of telecommunication and second signal of telecommunication are amplified process, first signal of telecommunication after being amplified and amplify after second signal of telecommunication. Thus, it is simple to follow-up first signal of telecommunication and second signal of telecommunication are analyzed processes, and makes testing result more accurate.
According to embodiment of the present utility model, terminal display 700 is used for showing partial pressure of carbon dioxide information in blood oxygen saturation information and blood, and receives external information processing instruction.
According to embodiment of the present utility model, described terminal display is computer, mobile phone or Internet server. User can use the terminal unit such as PC, mobile phone to inquire about and store data, sends operational order etc.
According to embodiment of the present utility model, transmitter 600 is connected with signal processor 500 and terminal display 700 respectively, for partial pressure of carbon dioxide information in blood oxygen saturation information and blood is sent to terminal display 700, and the external command that terminal display 700 receives is sent to signal processor 500.
According to embodiment of the present utility model, described transmitter is GPRS Wireless Transmitter, Bluetooth transmission device or WIFI Wireless Transmitter, and above-mentioned each transport module data transmission format meets the communication protocol standard of " the good healthy alliance of China's sports ", ensure the interoperability between medical health system, thus being added in general standard in conjunction with various product and service, provide the instrument of management individual and family health care better for people.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment of the present utility model or example. In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example. And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that: these embodiments can being carried out multiple change, amendment, replacement and modification when without departing from principle of the present utility model and objective, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. a semiotic monitor, it is characterised in that including:
For launching HONGGUANG and infrared light and detecting the body surface detection of luminescence device to the absorption information of HONGGUANG and infrared light;
For the absorption information of HONGGUANG and infrared light is changed into the photoreceiver of first signal of telecommunication, described photoreceiver is connected with described detection of luminescence device;
For skin surface is heated and monitors the heater of body surface skin temperature;
For detecting the concentration information of the carbon dioxide overflowed in blood and the concentration information of the carbon dioxide of spilling being changed into the carbon dioxide indicator of second signal of telecommunication, described carbon dioxide indicator is connected with described heater;
For first signal of telecommunication and second signal of telecommunication are analyzed the signal processor processed, described signal processor is connected with described photoreceiver and described carbon dioxide indicator respectively;
Terminal display; And
Transmitter, described transmitter is connected with described signal processor and described terminal display respectively.
2. semiotic monitor according to claim 1, it is characterised in that the wavelength of described HONGGUANG is 600-700nm, the wavelength of described infrared light is 900-1000nm.
3. semiotic monitor according to claim 2, it is characterised in that the wavelength of described HONGGUANG is 660nm, the wavelength of described infrared light is 940nm.
4. semiotic monitor according to claim 1, it is characterised in that farther include:
For controlling the heater temperature controller by skin surface heating to 40-45 degree Celsius, described temperature controller is connected with described heater.
5. semiotic monitor according to claim 1, it is characterised in that farther include:
Signal amplifier, described signal amplifier is connected with described photoreceiver, described carbon dioxide indicator and described signal processor respectively.
6. semiotic monitor according to claim 1, it is characterised in that described carbon dioxide indicator is arranged on the surface of described heater.
7. semiotic monitor according to claim 1, it is characterised in that described second signal of telecommunication is current signal or voltage signal.
8. semiotic monitor according to claim 7, it is characterised in that the intensity of described current signal is 4-20 milliampere.
9. semiotic monitor according to claim 1, it is characterised in that described terminal display is computer, mobile phone or Internet server.
10. semiotic monitor according to claim 1, it is characterised in that described transmitter is GPRS Wireless Transmitter, Bluetooth transmission device or WIFI Wireless Transmitter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008935.9U CN205286366U (en) | 2016-01-05 | 2016-01-05 | Physiological monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620008935.9U CN205286366U (en) | 2016-01-05 | 2016-01-05 | Physiological monitoring device |
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| CN205286366U true CN205286366U (en) | 2016-06-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354613A (en) * | 2017-01-26 | 2018-08-03 | 左庆军 | Carbon dioxide meter |
| CN108721745A (en) * | 2018-06-15 | 2018-11-02 | 上海市北站医院 | A kind of novel monitoring PETCO2 automatic controls oxygen supply concentration device |
| CN113825444A (en) * | 2019-05-15 | 2021-12-21 | 诺生物公司 | Epileptic seizure detection device |
-
2016
- 2016-01-05 CN CN201620008935.9U patent/CN205286366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354613A (en) * | 2017-01-26 | 2018-08-03 | 左庆军 | Carbon dioxide meter |
| CN108721745A (en) * | 2018-06-15 | 2018-11-02 | 上海市北站医院 | A kind of novel monitoring PETCO2 automatic controls oxygen supply concentration device |
| CN113825444A (en) * | 2019-05-15 | 2021-12-21 | 诺生物公司 | Epileptic seizure detection device |
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