CN207341758U - Carbon dioxide meter - Google Patents
Carbon dioxide meter Download PDFInfo
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- CN207341758U CN207341758U CN201720106114.3U CN201720106114U CN207341758U CN 207341758 U CN207341758 U CN 207341758U CN 201720106114 U CN201720106114 U CN 201720106114U CN 207341758 U CN207341758 U CN 207341758U
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- carbon dioxide
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Abstract
The utility model discloses a kind of carbon dioxide meter, including：Housing, the housing limit the carbon dioxide detection space of sealing；Air carbon dioxide sensor, the air carbon dioxide sensor are arranged in the carbon dioxide detection space；Data processor, the data processor are connected with the air carbon dioxide sensor；Display screen, the display screen are embedded on the housing, and are connected with the data processor；Elastic wristband, the elastic wristband are connected with the housing；Heated at constant temperature part, the heated at constant temperature part are arranged on the case inside；And sealing ring, the seal ring set are set on the housing.The carbon dioxide meter have the advantages that it is small, can body-worn, cheap and Non-invasive detection.
Description
Technical field
It the utility model is related to medical instruments field, and in particular, to carbon dioxide meter.
Background technology
Currently, cardiopulmonary disease is the primary killers of human health, by taking Chronic Obstructive Pulmonary Disease (COPD) as an example, according to mesh
Preceding situation, it is expected that to 2020, COPD by from the 6th of the nineteen ninety whole world cause of death the 3rd risen to 2020,
As the 5th of world's disease financial burden.In recent years, with the development of economy and society, the continuous of haze aggravates to be even more to increase
The incidence of cardiopulmonary disease, this under the theory of the new period " Health China ", the diagnosis and treatment to cardiopulmonary disease propose higher
It is required that.Arterial partial pressure of carbon dioxide is the important references index that heart and lung diseases are diagnosed in clinic, currently to arterial blood titanium dioxide
The detection of carbon partial pressure relies primarily on invasive arterial blood gas analysis, it is limited by external environment such as temperature, humidity and air pressure,
And be invasive inspection, this arteriopuncture to medical staff is horizontal and the beating of the peripheral arterial of patient is more demanding, clinical at present
The blood gas analysis equipment used is heavy, and expensive, portability is very poor, it is impossible to realizes and the real-time dynamic of carbon dioxide partial pressure is examined
Survey, it can be seen that, the improvement to carbon dioxide partial pressure detection device is extremely urgent.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model
One purpose is to propose a kind of carbon dioxide meter, the measuring instrument have it is small, can body-worn, cheap and nothing
The advantages that wound detection.
One side according to the present utility model, the utility model provide a kind of carbon dioxide meter.According to this reality
With new embodiment, which includes：Housing, the carbon dioxide detection that the housing limits sealing are empty
Between；Air carbon dioxide sensor, the air carbon dioxide sensor are arranged in the carbon dioxide detection space, are used for
Detect the gas concentration lwevel in the carbon dioxide detection space；Data processor, the data processor and the air
Carbon dioxide sensor is connected, for being analyzed and processed to the gas concentration lwevel, to obtain carbon dioxide in blood
Partial pressure；Display screen, the display screen are embedded on the housing, and are connected with the data processor；Heated at constant temperature part, it is described
Heated at constant temperature part is arranged on the case inside；And sealing ring, the seal ring set are set on the housing.
According to the carbon dioxide meter of the utility model embodiment, the carbon dioxide meter is small, it is wearable
In wrist, the arterial blood gas concentration lwevel of carry-on real time health human body.Also, carbon dioxide meter is Non-invasive detection, nothing
Arterial blood need to be extracted, stress test, anaesthesia patient monitoring for heart and lung diseases patient, respiratory therapy processing, skin flap are deposited
Vigor prediction is valuable.In addition, the measuring instrument is remarkably decreased relative to existing human body carbon dioxide meter production cost, fit
In clinical expansion and application.
Optionally, the volume of the air carbon dioxide sensor is (30-35) * (30-35) * (5-10).According to this reality
With new preferred embodiment, the volume of the air carbon dioxide sensor is 33*33*8.7mm.
Optionally, the closed detection space of the air carbon dioxide sensor is (35-40) * (35-40) * (2-5) mm.
Preferred embodiment according to the present utility model, the closed detection space of the air carbon dioxide sensor is 38*38*3mm.
Optionally, the heated at constant temperature part is intelligent heating band, and the intelligent heating band is arranged in the housing, and position
In the periphery of the air carbon dioxide sensor.
Optionally, which further comprises：Special skin cleaning bag, the special skin cleaning bag
Include：
Optionally, the sealing ring is made of elastomeric material.
Optionally, the heating-up temperature of the heated at constant temperature part is 40-42 degrees Celsius.
Optionally, which further comprises：Elastic wristband, the elastic wristband and the housing phase
Even.
Optionally, the elastic wristband includes：Wrist strap body；And elastomeric element, the elastomeric element are arranged on described
On wrist strap body.
Optionally, the display screen is touch-screen.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 shows the structure diagram of the carbon dioxide meter according to the utility model one embodiment；
Fig. 2 shows the structural representation of the cross section of the carbon dioxide meter according to the utility model one embodiment
Figure；
Fig. 3 shows the CO monitored in the detection process according to the utility model one embodiment in space2Partial pressure changes
Schematic diagram；
Fig. 4 shows the noninvasive carbon dioxide measurement and blood gas analysis titanium dioxide according to the utility model one embodiment
Carbon partial pressure actual value relation schematic diagram.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that to the utility model
Limitation.
In the description of the utility model, term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " vertical ", " level ", " top ", " bottom " be based on orientation shown in the drawings or position relationship,
It is for only for ease of description the utility model rather than requires the utility model must be with specific azimuth configuration and operation, therefore
It is not intended that the limitation to the utility model.
It should be noted that term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be with
Express or implicitly include one or more this feature.Further, in the description of the utility model, unless otherwise
Illustrate, " multiple " are meant that two or more.
One side according to the present utility model, the utility model provide a kind of carbon dioxide meter.With reference to 1 He of figure
2, embodiment according to the present utility model, is explained the carbon dioxide meter, which includes：
Housing 100, air carbon dioxide sensor 200, data processor 300, display screen 400, elastic wristband 500, heated at constant temperature part
600 and sealing ring 700.For the ease of understanding the carbon dioxide meter, below to each component of the carbon dioxide meter into
Row illustrates one by one：
Housing 100：Embodiment according to the present utility model, the housing 100 limit the carbon dioxide detection space of sealing.
Embodiment according to the present utility model, carbon dioxide detection space is (35-40) * (35-40) * (2-5) mm.According to
The preferred embodiment of the utility model, the closed detection space of the air carbon dioxide sensor is 38*38*3mm.The space
Cross significantly, then detection time will be significantly elongated；Space is too small, then is unfavorable for arterial blood CO2Appropriateness is formed after skin evaporates
CO2Blending space, influences accuracy of detection.
Air carbon dioxide sensor 200：Embodiment according to the present utility model, the air carbon dioxide sensor 200
It is arranged in carbon dioxide detection space, for detecting the gas concentration lwevel in carbon dioxide detection space.Skin surface
CO2Gas concentration is far below the CO of arterial blood2Concentration, heating can make human body peripheral vasodilation, and gas is through the logical of epidermis
Permeability improves.When skin is heated to 40 DEG C -42 DEG C, the CO of arterial blood2Gas can rapidly diffuse into carbon dioxide inspection through skin
Survey in space, by the regular hour, carbon dioxide detects the CO in space2Concentration is up to limting concentration, and concentration will not be after
It is continuous to rise, the CO of the concentration and arterial blood2There are preferable correlation for concentration.
, wherein it is desired to explanation, which is conventional miniature air carbon dioxide sensing
Device, inventor by experimental studies have found that, in the restriction space of certain volume, i.e., carbon dioxide detection space, you can
Arterial blood gas concentration lwevel is characterized with the concentration in the space.The detection space should be able to be by CO2Carbon dioxide sensor is complete
It is included in inside, and it is easy to process, therefore the length of side in the monitoring space is 38*38；The height in detection space should be sensor side
Long 1/10 or so, in favor of arterial blood CO2Appropriate blending space is formed after skin evaporates, improves accuracy of detection, so
Height that the detection space is selection 2-5mm, wherein, highly for 3mm when, detect the arterial blood CO of the evaporation in space2Mixing
Fully, measurement accuracy higher.
Further, the carbon dioxide meter of the utility model embodiment is detected using air carbon dioxide sensor
Arterial blood CO2The principle of partial pressure illustrates, the CO in air carbon dioxide sensor detection monitoring space2The detection of partial pressure
Journey monitors the CO in space as shown in figure 3, under original state2CO in partial pressure, that is, external environment2Partial pressure, when the skin of heating person under test
Behind skin surface, the CO in arterial blood2Concentration is constantly disengaged, and makes the CO in monitoring space2Partial pressure constantly raises, until CO2Partial pressure reaches
To stable state, CO of the air carbon dioxide sensor to stable state in monitoring space2Partial pressure is detected, and is characterized with this
Arterial blood CO2Partial pressure.
Embodiment according to the present utility model, the volume of air carbon dioxide sensor is (30-35) * (30-35) * (5-
10).Thus, air carbon dioxide sensor small, good portability, wears in wrist easy to be arranged in housing.Root
According to the preferred embodiment of the utility model, the volume of the air carbon dioxide sensor is 33*33*8.7mm, and then, it is existing
Air carbon dioxide sensor can be used as carbon dioxide sensor 200, and measurement carbon dioxide detects the carbon dioxide in space
Concentration.
Data processor 300：Embodiment according to the present utility model, the data processor 300 are passed with air carbon dioxide
Sensor 200 is connected, according to the surveyed carbon dioxide correlation good with carbon dioxide partial pressure in blood, to gas concentration lwevel into
Row analyzing and processing, establishes the correspondence of percutaneous carbon dioxide monitoring and arterial blood carbon dioxide result, so as to obtain blood
Middle carbon dioxide partial pressure.So as to which without blood drawing, blood can be characterized using the gas concentration lwevel in carbon dioxide detection space
Middle carbon dioxide partial pressure, represent in real time monitoring blood in carbon dioxide partial pressure situation of change, for heart and lung diseases patient stress
Experiment, anaesthesia patient monitoring, respiratory therapy processing, the prediction of skin flap viability are valuable.
Inventor, which studies, finds that noninvasive carbon dioxide measurement is counted with blood gas analysis carbon dioxide partial pressure actual value
Analysis, it is found that the two is in a linear relationship in scatter diagram, refer to Fig. 4, substitute into linear function：Noninvasive carbon dioxide measurement=k
Blood gas analysis carbon dioxide partial pressure+b, obtains noninvasive carbon dioxide measurement=blood gas analysis carbon dioxide partial pressure x112.5-1850.
Inventor is fitted noninvasive carbon dioxide measurement analysis with the equation, and acquisition can characterize blood gas analysis carbon dioxide point
Pressure value, i.e. data processor 300 carry out noninvasive carbon dioxide measurement the numerical value of analyzing and processing acquisition.Display screen 400：According to
The embodiment of the utility model, display screen 400 are embedded on housing 100, and are connected with data processor 300, for showing blood
Carbon dioxide partial pressure in liquid, and input instruction.
Some embodiments according to the present utility model, the display screen 400 are touch-screen, so that, it can be achieved using screen
Control to carbon dioxide meter.
Elastic wristband 500：Embodiment according to the present utility model, the carbon dioxide meter can further comprise elastic wrist
Band 500, which is connected with housing 100, after housing 100 is fixed on wrist, keeps housing 100 and detection
Position good contact and sealing, ensure definite monitoring spatial volume.
Embodiment according to the present utility model, the elastic wristband 500 include：Wrist strap body 510 and elastomeric element 520, its
Middle elastomeric element 520 is arranged on wrist strap body 510, in other words, that is, one section of elastomeric element of upper connection of wrist strap body,
Make wrist strap that there is elasticity in itself, so that housing is more snugly fitted in wrist.
Heated at constant temperature part 600：Embodiment according to the present utility model, heated at constant temperature part is arranged on the inner side of housing 100, and supervises
Body surface skin temperature is surveyed, carbon dioxide in blood is overflowed in vitro, so as to the carbon dioxide overflowed.Thus, heating is passed through
The carbon dioxide in blood is overflowed, arterial blood gas concentration lwevel can be detected without arteriopuncture.
Embodiment according to the present utility model, the heated at constant temperature part 600 are intelligent heating band, which is arranged on
In the housing, and positioned at the periphery of air carbon dioxide sensor.Thus, easy to according to the progress of the temperature of human skin surface
Heating, makes the skin of target site be in temperature constant state, ensures that the carbon dioxide in blood is stablized and overflows, makes the result of measurement more
It is accurate and stable.
Embodiment according to the present utility model, the heating-up temperature of the heated at constant temperature part 600 is 40-42 degrees Celsius.Skin adds
When heat is to 40-42 degrees Celsius, skin is in extreme congestive state, CO in skin histology2Partial pressure is close to arterial blood CO2Gas
Partial pressure.
Sealing ring 700：Embodiment according to the present utility model, the sealing ring 700 are set on housing 100, ensure skin
The gas that surface is overflowed enters carbon dioxide detection space, and prevents ambient atmos from entering carbon dioxide detection space, makes inspection
It is more accurate to survey result.
Embodiment according to the present utility model, the sealing ring 700 are made of elastomeric material.Thus, sealing effect is good,
Cost of material is low.
Embodiment according to the present utility model, the carbon dioxide meter further comprise：Special skin cleaning bag, it is described
Special skin cleaning bag includes：Disposable cleaning adhesive tape, cleaning cotton and detergent.The special skin cleaning bag coordinates carbon dioxide
Detection operation, carries out deep clean to detection skin area, is overflowed easy to carbon dioxide, make testing result more accurate.
Below with reference to specific embodiment, the utility model is illustrated, it is necessary to which explanation is, these embodiments are only
It is illustrative, and it is not intended that limitation to the utility model.
Embodiment 1
To Healthy People and there are heart and lung diseases respectively using the wearable carbon dioxide meter of the utility model embodiment
People detect cardiovascular fitness situation, specific method is as follows：
(1) gather the arterial blood of person to be detected and detect arterial blood gas concentration lwevel, the results detailed in vim and vigour in following table point
Analysis value；
(2) wearable carbon dioxide meter is worn in the wrist of person to be detected, starts measuring instrument detection and treat
The transcutaneous co 2 concentration of survey person, the results detailed in non-invasive measurement value in following table；
As shown in data in figure, paired t-test is carried out to non-invasive measurement value and blood gas analysis value, P ＞ 0.05, the two has no
Significant difference, it is believed that two kinds of measurement method results are identical；The stabilization time of non-invasive measurement value mostly within 5min, it
After can carry out continuous dynamic carbon dioxide partial pressure to patient and detect, embody the advantages of efficient, noninvasive, convenient, be more suitable for facing
Bed.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
Combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from the principle and objective of the utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (10)
- A kind of 1. carbon dioxide meter, it is characterised in that including：Housing, the housing limit the carbon dioxide detection space of sealing；For detecting the air carbon dioxide sensor of the gas concentration lwevel in carbon dioxide detection space, the air dioxy Change carbon sensor to be arranged in the carbon dioxide detection space；For the data processor analyzed and processed to gas concentration lwevel, the data processor and the air titanium dioxide Carbon sensor is connected；Display screen, the display screen are embedded on the housing, and are connected with the data processor；Heated at constant temperature part, the heated at constant temperature part are arranged on the case inside；AndSealing ring, the seal ring set are set on the housing.
- 2. carbon dioxide meter according to claim 1, it is characterised in that the body of the air carbon dioxide sensor Product is (30-35) * (30-35) * (5-10) mm.
- 3. carbon dioxide meter according to claim 2, it is characterised in that the air carbon dioxide sensor it is close It is (35-40) * (35-40) * (2-5) mm to close detection space.
- 4. carbon dioxide meter according to claim 2, it is characterised in that the heated at constant temperature part is intelligent heating Band, the intelligent heating band are arranged in the housing, and positioned at the periphery of the air carbon dioxide sensor.
- 5. carbon dioxide meter according to claim 1, it is characterised in that further comprise：Special skin cleaning bag, the special skin cleaning include disposable cleaning adhesive tape, cleaning cotton and detergent.
- 6. carbon dioxide meter according to claim 1, it is characterised in that the sealing ring is made of elastomeric material 's.
- 7. carbon dioxide meter according to claim 1, it is characterised in that the heating-up temperature of the heated at constant temperature part is 40-42 degrees Celsius.
- 8. carbon dioxide meter according to claim 1, it is characterised in that further comprise：Elastic wristband, the elastic wristband are connected with the housing.
- 9. carbon dioxide meter according to claim 8, it is characterised in that the elastic wristband includes：Wrist strap body；AndElastomeric element, the elastomeric element are arranged on the wrist strap body.
- 10. carbon dioxide meter according to claim 1, it is characterised in that the display screen is touch-screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720106114.3U CN207341758U (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720106114.3U CN207341758U (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
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| Publication Number | Publication Date |
|---|---|
| CN207341758U true CN207341758U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720106114.3U Expired - Fee Related CN207341758U (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354613A (en) * | 2017-01-26 | 2018-08-03 | 左庆军 | Carbon dioxide meter |
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2017
- 2017-01-26 CN CN201720106114.3U patent/CN207341758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354613A (en) * | 2017-01-26 | 2018-08-03 | 左庆军 | Carbon dioxide meter |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180511 Termination date: 20220126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |