CN108354613A - Carbon dioxide meter - Google Patents
Carbon dioxide meter Download PDFInfo
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- CN108354613A CN108354613A CN201710057337.XA CN201710057337A CN108354613A CN 108354613 A CN108354613 A CN 108354613A CN 201710057337 A CN201710057337 A CN 201710057337A CN 108354613 A CN108354613 A CN 108354613A
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- carbon dioxide
- meter according
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- shell
- heated
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/14542—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue for measuring blood gases
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6813—Specially adapted to be attached to a specific body part
- A61B5/6824—Arm or wrist
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/683—Means for maintaining contact with the body
- A61B5/6831—Straps, bands or harnesses
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Optics & Photonics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a kind of carbon dioxide meters to include：Shell, the shell limit the carbon dioxide detection space of sealing；Air carbon dioxide sensor, the air carbon dioxide sensor setting is in carbon dioxide detection space, for detecting the gas concentration lwevel in carbon dioxide detection space；Data processor, the data processor are connected with the air carbon dioxide sensor, for carrying out analyzing processing to the gas concentration lwevel, are divided to obtain carbon dioxide in blood；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 shell；Heated at constant temperature part, the heated at constant temperature part are arranged in the case inside；And sealing ring, the seal ring set are set on the housing.The measuring instrument have many advantages, such as it is small, can body-worn, cheap and Non-invasive detection.
Description
Technical field
The present invention relates to medical instruments fields, 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 is, it is expected that 2020, the third position that COPD will rise to 2020 from the 6th of the nineteen ninety whole world cause of death the,
As the 5th of world's disease financial burden.In recent years, with the development of economy and society, the continuous exacerbation of haze is even more to increase
The incidence of cardiopulmonary disease, this proposes the diagnosis and treatment of cardiopulmonary disease higher under the theory of the new period " Health China "
It is required that.Arterial partial pressure of carbon dioxide is the important reference indicator 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, is limited by external environment such as temperature, humidity and air pressure,
And be invasive inspection, this horizontal to the arteriopuncture of medical staff and patient peripheral arterial beating is more demanding, clinical at present
The blood gas analysis equipment used is heavy, and expensive, portability is very poor, can not achieve and is examined to the real-time dynamic that carbon dioxide divides
It surveys, it can be seen that, the improvement that detection device is divided to carbon dioxide is extremely urgent.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
Be to propose a kind of carbon dioxide meter, the measuring instrument have it is small, can body-worn, cheap and Non-invasive detection etc.
Advantage.
According to an aspect of the present invention, the present invention provides a kind of carbon dioxide meters.Implementation according to the present invention
Example, the carbon dioxide meter include：Shell, the shell limit the carbon dioxide detection space of sealing；Air titanium dioxide
Carbon sensor, the air carbon dioxide sensor setting is in carbon dioxide detection space, for detecting the dioxy
Change the gas concentration lwevel in carbon detection space；Data processor, the data processor and the air carbon dioxide sensing
Device is connected, and for carrying out analyzing processing to the gas concentration lwevel, is divided to obtain carbon dioxide in blood；Display screen,
The display screen is embedded on the housing, and is connected with the data processor；Heated at constant temperature part, the heated at constant temperature part are set
It sets in the case inside；And sealing ring, the seal ring set are set on the housing.
Carbon dioxide meter according to the ... of the embodiment of the present invention, the carbon dioxide meter is small, wearable in wrist
On, the arterial blood gas concentration lwevel of carry-on real time health human body.Also, carbon dioxide meter is Non-invasive detection, without taking out
Extracting arterial blood monitors the stress test of heart and lung diseases patient, anaesthesia patient, respiratory therapy is handled, skin flap viability
It predicts valuable.In addition, the measuring instrument is remarkably decreased relative to existing human body carbon dioxide meter production cost, suitable for facing
Bed promotion and application.
In addition, carbon dioxide meter according to the above embodiment of the present invention can also have following additional technology special
Sign：
According to an embodiment of the invention, the volume of the air carbon dioxide sensor is (30-35) * (30-35) * (5-
10).According to a preferred embodiment of the invention, the volume of the air carbon dioxide sensor is 33*33*8.7mm.
According to an embodiment of the invention, the closed detection space of the air carbon dioxide sensor is (35-40) * (35-
40)*(2-5)mm.According to a preferred embodiment of the invention, the closed detection space of the air carbon dioxide sensor is 38*
38*3mm。
According to an embodiment of the invention, the heated at constant temperature part is intelligent heating band, and the intelligent heating band is arranged in institute
It states in shell, and positioned at the periphery of the air carbon dioxide sensor.
According to an embodiment of the invention, which further comprises：Special skin cleaning packet, it is described special
Skin cleans：
According to an embodiment of the invention, the sealing ring is made of rubber material.
According to an embodiment of the invention, the heating temperature of the heated at constant temperature part is 40-42 degrees Celsius.
According to an embodiment of the invention, which further comprises：Elastic wristband, the elastic wristband with
The shell is connected.
According to an embodiment of the invention, the elastic wristband includes：Wrist strap ontology；And elastomeric element, the elastic portion
Part is arranged on the wrist strap ontology.
According to an embodiment of the invention, the display screen is touch screen.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 shows the structural schematic diagram of carbon dioxide meter according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagram of the cross section of carbon dioxide meter according to an embodiment of the invention；
Fig. 3 shows the CO monitored in detection process according to an embodiment of the invention in space2Partial pressure variation signal
Figure；
Fig. 4 shows noninvasive carbon dioxide measurement according to an embodiment of the invention and blood gas analysis carbon dioxide point
Press actual value relation schematic diagram.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the present invention rather than require the present invention must be with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.
It should be noted that term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Express or implicitly include one or more this feature.Further, in the description of the present invention, unless otherwise saying
Bright, the meaning of " plurality " is two or more.
According to an aspect of the present invention, the present invention provides a kind of carbon dioxide meters.With reference to Fig. 1 and 2, according to this
The carbon dioxide meter is explained in the embodiment of invention, which includes：Shell 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, each component of the carbon dioxide meter is illustrated one by one below：
Shell 100：According to an embodiment of the invention, which limits the carbon dioxide detection space of sealing.
According to an embodiment of the invention, carbon dioxide detection space is (35-40) * (35-40) * (2-5) mm.According to this hair
The closed detection space of bright preferred embodiment, the air carbon dioxide sensor is 38*38*3mm.The space is crossed significantly,
Then detection time will be significantly elongated；Space is too small, then is unfavorable for arterial blood CO2Appropriate CO is formed after skin evaporates2Mixing is empty
Between, influence accuracy of detection.
Air carbon dioxide sensor 200：According to an embodiment of the invention, which is arranged
In carbon dioxide detection space, for detecting the gas concentration lwevel in carbon dioxide detection space.The CO of skin surface2Gas
Bulk concentration is far below the CO of arterial blood2Concentration, heating can make human body peripheral vasodilation, gas penetrate the permeability of epidermis
It improves.When skin is heated to 40 DEG C -42 DEG C, the CO of arterial blood2It is empty that gas can rapidly diffuse into carbon dioxide detection through skin
In, by the regular hour, carbon dioxide detects the CO in space2Concentration is up to limting concentration, and concentration will not continue to
It rises, the CO of the concentration and arterial blood2There are preferable correlations for concentration.
Wherein, it should be noted that the air carbon dioxide sensor 200 is the miniature air carbon dioxide sensing of routine
Device, inventor by experimental studies have found that, in the restriction space of certain volume, i.e., carbon dioxide detect space, you can
Arterial blood gas concentration lwevel is characterized with the concentration in the space.It the detection space should be able to be by CO2Carbon dioxide sensor is complete
It is included in inside, and 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, and improves accuracy of detection, so
Height that the detection space is selects 2-5mm, wherein highly for 3mm when, detect the arterial blood CO of the evaporation in space2Mixing
Fully, measurement accuracy higher.
Further, artery is detected using air carbon dioxide sensor to the carbon dioxide meter of the embodiment of the present invention
Blood CO2The principle of partial pressure illustrates, the CO in air carbon dioxide sensor detection monitoring space2The detection process of partial pressure is such as
Shown in Fig. 3, under original state, the CO in space is monitored2Partial pressure is CO in external environment2Partial pressure, when the skin table of heating person under test
Behind face, the CO in arterial blood2Concentration is constantly disengaged, and the CO in monitoring space is made2Partial pressure constantly increases, until CO2Partial pressure reaches steady
Determine state, CO of the air carbon dioxide sensor to stable state in monitoring space2Partial pressure is detected, and characterizes artery with this
Blood CO2Partial pressure.
According to an embodiment of the invention, the volume of air carbon dioxide sensor is (30-35) * (30-35) * (5-10).
Air carbon dioxide sensor small, good portability as a result, is worn convenient for being arranged in shell in wrist.According to this
The volume of the preferred embodiment of invention, the air carbon dioxide sensor is 33*33*8.7mm, in turn, existing air dioxy
Change carbon sensor and can be used as carbon dioxide sensor 200, measures the gas concentration lwevel in carbon dioxide detection space.
Data processor 300：According to an embodiment of the invention, the data processor 300 and air carbon dioxide sensor
200 are connected, and divide good correlation according to surveyed carbon dioxide and carbon dioxide in blood, divide gas concentration lwevel
Analysis is handled, and the correspondence of percutaneous carbon dioxide monitoring and arterial blood carbon dioxide result is established, to obtain two in blood
Carbonoxide divides.To without blood drawing, be characterized two in blood using the gas concentration lwevel in carbon dioxide detection space
Carbonoxide divide, indicate in real time monitoring blood in carbon dioxide divide situation of change, for heart and lung diseases patient stress test,
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 finds that the two is in a linear relationship in scatter plot, refers to Fig. 4, substitutes 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 analysis with the equation to noninvasive carbon dioxide measurement, 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 processing acquisition.Display screen 400：According to
The embodiment of the present invention, display screen 400 are embedded on shell 100, and are connected with data processor 300, for showing in blood
Carbon dioxide divides, and input instruction.
According to some embodiments of the present invention, which is touch screen, to can be realized to two using screen
The control of carbonoxide measuring instrument.
Elastic wristband 500：According to an embodiment of the invention, which can further comprise elastic wristband
500, which is connected with shell 100, after shell 100 is fixed on wrist, keeps shell 100 and test section
The good contact in position and sealing, ensure determining monitoring spatial volume.
According to an embodiment of the invention, which includes：Wrist strap ontology 510 and elastomeric element 520, are hit by a bullet
Property component 520 be arranged on wrist strap ontology 510, in other words, that is, wrist strap ontology one section of elastomeric element of upper connection, make wrist
There is elasticity with itself, to make shell be more snugly fitted in wrist.
Heated at constant temperature part 600：According to an embodiment of the invention, the setting of heated at constant temperature part is in 100 inside of shell, and monitors body
Table skin temperature makes carbon dioxide in blood overflow in vitro, so as to the carbon dioxide overflowed.Blood is made by heating as a result,
Carbon dioxide in liquid overflows, and can be detected to arterial blood gas concentration lwevel without arteriopuncture.
According to an embodiment of the invention, which is intelligent heating band, which is arranged described
In shell, and positioned at the periphery of air carbon dioxide sensor.It is convenient for being added according to the temperature of human skin surface as a result,
Heat makes the skin of target site be in temperature constant state, ensures that the carbon dioxide in blood is stablized and overflows, keeps the result of measurement more accurate
Really and stablize.
According to an embodiment of the invention, the heating temperature of the heated at constant temperature part 600 is 40-42 degrees Celsius.Skin is heated to
At 40-42 degrees Celsius, skin is in extreme congestive state, CO in skin histology2Partial pressure is close to arterial blood CO2Partial pressure.
Sealing ring 700：According to an embodiment of the invention, which is set on shell 100, ensures skin surface
The gas of spilling enters carbon dioxide detection space, and prevents ambient atmos from entering the carbon dioxide and detect space, and detection is made to tie
Fruit is more acurrate.
According to an embodiment of the invention, which is made of rubber material.Sealing effect is good as a result, raw material
It is at low cost.
According to an embodiment of the invention, which further comprises：Special skin cleaning packet, it is described special
Skin cleans：Disposable cleaning adhesive tape, cleaning cotton and detergent.The special skin cleaning packet cooperation carbon dioxide detection
Operation carries out deep clean to detection skin area, is overflowed convenient for carbon dioxide, keep testing result more acurrate.
Below with reference to specific embodiment, the present invention will be described, it should be noted that these embodiments are only explanation
Property, and be not considered as limiting the invention.
Embodiment 1
Using the wearable carbon dioxide meter of the embodiment of the present invention respectively to Healthy People and the people for having heart and lung diseases
Cardiovascular fitness situation is detected, the specific method is as follows：
(1) it acquires the arterial blood of person to be detected and detects 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 waits for
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 the partial pressure detection of continuous dynamic carbon dioxide can be carried out to patient, embody efficient, noninvasive, convenient advantage, 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 spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in can be combined in any suitable manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of carbon dioxide meter, which is characterized in that including：
Shell, the shell limit the carbon dioxide detection space of sealing；
Air carbon dioxide sensor, the air carbon dioxide sensor setting are used in carbon dioxide detection space
Gas concentration lwevel in detection carbon dioxide detection space；
Data processor, the data processor are connected with the air carbon dioxide sensor, for the carbon dioxide
Concentration carries out analyzing processing, is divided to obtain carbon dioxide in blood；
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 in the case inside；And
Sealing ring, the seal ring set are set on the housing.
2. carbon dioxide meter according to claim 1, which is characterized in that the body of the air carbon dioxide sensor
Product is (30-35) * (30-35) * (5-10) mm, it is preferable that is 33*33*8.7mm.
3. carbon dioxide meter according to claim 2, which is characterized in that the air carbon dioxide sensor it is close
It is (35-40) * (35-40) * (2-5) mm to close detection space, it is preferable that is 38*38*3mm.
4. carbon dioxide meter according to claim 2, which is characterized in that the heated at constant temperature part is intelligent heating
Band, the intelligent heating band are arranged in the shell, and positioned at the periphery of the air carbon dioxide sensor.
5. carbon dioxide meter according to claim 1, which is characterized in that further comprise：
Special skin cleaning packet, the special skin cleaning includes disposable cleaning adhesive tape, cleaning cotton and detergent.
6. carbon dioxide meter according to claim 1, which is characterized in that the sealing ring is made of rubber material
's.
7. carbon dioxide meter according to claim 1, which is characterized in that the heating temperature of the heated at constant temperature part is
40-42 degrees Celsius.
8. carbon dioxide meter according to claim 1, which is characterized in that further comprise：
Elastic wristband, the elastic wristband are connected with the shell.
9. carbon dioxide meter according to claim 8, which is characterized in that the elastic wristband includes：
Wrist strap ontology；And
Elastomeric element, the elastomeric element are arranged on the wrist strap ontology.
10. carbon dioxide meter according to claim 1, which is characterized in that the display screen is touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057337.XA CN108354613A (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710057337.XA CN108354613A (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108354613A true CN108354613A (en) | 2018-08-03 |
Family
ID=63011417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710057337.XA Pending CN108354613A (en) | 2017-01-26 | 2017-01-26 | Carbon dioxide meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108354613A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917955A (en) * | 2018-08-13 | 2018-11-30 | 郑州泰恩科技有限公司 | A kind of wireless temperature measuring device for switch cabinet |
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|---|---|---|---|---|
| CN101415364A (en) * | 2006-04-07 | 2009-04-22 | 雷迪奥米特医学公司 | Mounting device for an electrochemical sensor unit |
| CN104144644A (en) * | 2012-03-01 | 2014-11-12 | 皇家飞利浦有限公司 | Sensor for determining concentration of gas |
| CN205286366U (en) * | 2016-01-05 | 2016-06-08 | 朱海燕 | Physiological monitoring device |
| CN207341758U (en) * | 2017-01-26 | 2018-05-11 | 左庆军 | Carbon dioxide meter |
-
2017
- 2017-01-26 CN CN201710057337.XA patent/CN108354613A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101415364A (en) * | 2006-04-07 | 2009-04-22 | 雷迪奥米特医学公司 | Mounting device for an electrochemical sensor unit |
| CN104144644A (en) * | 2012-03-01 | 2014-11-12 | 皇家飞利浦有限公司 | Sensor for determining concentration of gas |
| CN205286366U (en) * | 2016-01-05 | 2016-06-08 | 朱海燕 | Physiological monitoring device |
| CN207341758U (en) * | 2017-01-26 | 2018-05-11 | 左庆军 | Carbon dioxide meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917955A (en) * | 2018-08-13 | 2018-11-30 | 郑州泰恩科技有限公司 | A kind of wireless temperature measuring device for switch cabinet |
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