JP2948155B2 - Respiratory air analysis system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to the field of medicine or sports science. More specifically, the present invention relates to a field of measuring a respiratory air flow and a respiratory air concentration to evaluate a health condition, a therapeutic effect, or an exercise ability.

[0002]

2. Description of the Related Art Exercise load tests have been widely used for the purpose of grasping the health condition, therapeutic effect, exercise ability, etc. of a subject. This exercise load test is performed by causing a subject to exercise lower limbs using an ergometer (trade name), a treadmill (trade name), etc., and the respiratory air flow rate, oxygen (O ₂ ) concentration in respiratory air and This is a test in which the concentration of carbon dioxide (CO ₂ ) is measured to determine, for example, the amount of oxygen consumed and the like, and the function of the subject's respiratory and circulatory organs is grasped.

[0003] A stationary respiratory analyzer as a respiratory analyzer for analyzing a subject's respiratory air flow rate, O ₂ concentration and CO ₂ concentration in the respiratory air for each respiratory air used in an exercise load test. It has been known.

[0004] In addition, the respiratory air flow rate, O ₂ concentration and CO _{2 in} the respiratory air of the subject during sports or daily operation.
A portable device is also known as a respiratory analyzer capable of analyzing the concentration.

[0005]

However, in the case of a conventional stationary respiratory analyzer, detailed analysis data for each respiratory air of the subject during a predetermined exercise by an ergometer, a treadmill or the like is obtained. However, there is a drawback that analysis data cannot be obtained during daily movements or during exercise (arbitrary exercise) during sports.
On the other hand, in the case of a conventional portable respiratory analyzer, analysis data on respiratory air during an arbitrary exercise can be obtained. There was a drawback that accurate and detailed data could not be obtained for each case.

[0006] In the exercise load test, lower limb movement is mainly performed, but not only lower limb movement but also upper limb and trunk movements are burdensome in daily life, so if a patient has upper limb paralysis, Significant energy is required to move the upper limbs. Therefore, for example, when the same load is applied to the two persons with the ergometer, the average oxygen intake may be different when performing the same operation in daily life, even if the average oxygen intake is the same. Therefore, the conventional data analysis of either the predetermined exercise or the arbitrary exercise is insufficient.

Accordingly, the present invention has been made in view of the above circumstances, and provides a respiratory air analysis system capable of more accurately evaluating a subject's health condition, therapeutic effect, or exercise ability. The purpose is to:

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is a method for analyzing respiratory data such as a flow rate of a respiratory gas of a subject and a concentration of a gas in the respiratory gas. a gas analysis system, a first respiratory gas analysis means for analyzing and measuring a first data about breath for each breath of the subject for a given movement, the subject
A second respiratory analyzer for measuring and analyzing second data relating to the second respiratory air of the subject with respect to any exercise, the second respiratory analyzer being carried on a part of the body of the subject; One de
Data in the first data and the previous data in the second data.
The first selection data is compared with the second selection data corresponding to the first selection data.
Data analysis means for performing comparative analysis .

According to the first aspect of the present invention, the first respiratory air analyzing means analyzes the first data relating to the respiratory air of each of the subjects with respect to the predetermined exercise, and the respiratory air of the subject is analyzed .
Second data relating to the subject's respiratory air for any exercise is analyzed by the second respiratory air analyzing means portable to the body, and the second data in the first data of the subject is analyzed by the data analyzing means.
1 selection data and 1st selection data in the second data
Is compared and analyzed with the second selection data corresponding to
It is possible to analyze by comparing the accurate basic data on the movement of the subject and the data during the operation that the user actually wants to know. It is possible to more accurately evaluate exercise performance and the like.

[0010] Further, since the apparatus has a respiratory air analysis function at both a predetermined exercise time and an arbitrary exercise time, other parts other than the analysis function unit of the respiratory air analysis system can be shared, so that separate functions are provided. The cost can be reduced as compared with the case where the apparatus is used.

Here, the predetermined exercise means an exercise determined in advance to collect basic data of information on breathing of the subject, for example, an exercise using an ergometer or a treadmill in an exercise load test or the like. And so on.

[0012] The arbitrary exercise means an exercise that is actually performed in order to collect information on the breathing of the subject that the subject wants to know. For example, daily exercises such as housework or sports exercises are performed. Say.

The data relating to the respiratory gas refers to data such as the respiratory air flow rate of the subject, the O ₂ concentration or the CO ₂ concentration in the respiratory gas due to the predetermined exercise or any exercise.

According to a second aspect of the present invention, there is provided the respiratory air analyzing system according to the first aspect, wherein the second respiratory air analyzing means is provided.
Can be transmitted to the data comparing means in real time
Data communication means is provided.

According to the second aspect of the present invention, data communication
Means can be sent to data comparison means in real time
Therefore, the comparison between the first data and the second data is real time.
You can

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a configuration diagram of a respiratory air analyzer unit according to the present invention.

The respiratory air measurement / analysis unit 1 is collected by a first respiratory air analyzer 2, a second respiratory air analyzer 3, a respiratory air collecting mask 4 attached to the mouth of a subject, and a respiratory air collecting mask 4. Litter calibrator 5, power supply 6, AC power supply 7 for warming-up, battery 8, first respiratory air analyzer 2, and second respiratory air analyzer 3 for performing gas concentration calibration, flow rate calibration or volume calibration of the supplied respiratory air It is composed of a computer 9, a printer 10, an analysis software program 11 and the like which can be connected to the computer.

FIG. 2 shows a configuration diagram of the inside of the first respiratory gas analyzer 2 and the second respiratory gas analyzer 3 according to the present invention.

The first respiratory gas analyzer 2 is of a stationary type, and includes therein a gas concentration analyzer 21, a suction pump 22,
Amplifier 23, AD converter 24, arithmetic unit (CPU)
25, a memory 26, and the like. The gas concentration analyzer 21 is a device for analyzing the O ₂ concentration and the CO ₂ concentration in the respiratory gas. The O ₂ concentration analyzer (not shown) uses a magnetic sensor-based analyzer, and the CO ₂ concentration analyzer (shown) An analyzer using an infrared absorption type sensor is used as (omitted). Since the first respiratory gas analyzer 2 can analyze the O ₂ concentration and the CO ₂ concentration in association with each respiratory gas of the subject (the breath-by-breath method), highly accurate analysis data can be obtained. can get.

The second respiratory analyzer 3 is of a portable size, and its main configuration is substantially the same as that of the first analyzer. Therefore, inside the gas concentration analyzer 31,
A suction pump 32, an amplifier 33, an AD converter 34, an arithmetic unit (CPU) 35, a memory 36, and the like are attached. The gas concentration analyzer 31 detects the O ₂ concentration in the respiratory gas and the CO ₂
A device for analyzing the concentration, for example, using an analyzer with a magnetic sensor as an O ₂ concentration analyzer (not shown),
( ₂ ) An analyzer using an infrared absorption type sensor is used as a concentration analyzer (not shown). This second respiratory analyzer 3
Shows the O ₂ concentration and CO ₂
To average the concentration (mixing chamber method)
The accuracy is inferior to that of the first respiratory analyzer 2. In addition, the gas to be subjected to concentration analysis by the second analyzer 3 is reduced to a minimum necessary O ₂ gas.
Only the concentration may be used. Then, the weight can be further reduced.

Further, a flow meter 41 is connected to the respiratory air sampling mask 4 shown in FIG.
1 is connected to the amplifier 42 via an electric wire. The sampling tube 4 is provided on the side wall of the flow meter 41.
3 is connected to one end, and the other end is connected to a gas analyzer 21 in the first respiratory analyzer 2 or the second respiratory analyzer 3.

The respiratory air of the subject flows from the respiratory air collecting mask 4 into the flow meter 41, and the respiratory air flow is measured. The detected analog signal is sent to an amplifier 42 via a wire.
The amplified respiratory flow signal is converted into a digital signal by the AD converter 24 (or 34) and input to the arithmetic unit (CPU) 25 (or 35).
Here, a small Flei is used as a sensor for analyzing respiratory airflow.
Use the sch type pneumotachograph type.

The respiratory gas in the respiratory air sampling mask 4 is sucked by the suction pump 22 (or 33) in the first respiratory air analyzer 2 or the second respiratory air analyzer 3, and is passed through the sampling tube 44. Gas concentration analyzer 21
(Or 31). The concentration of the drawn respiratory gas is measured by an O ₂ concentration sensor or a CO ₂ concentration sensor in the gas analyzer 21 (or 31). The measured gas concentration analog signal is amplified by the amplifier 23 (or 33), converted into a digital signal by the AD converter 24 (or 34), and input to the arithmetic unit (CPU) 25 (or 35).

The respiratory flow signal and the gas concentration signal input to the arithmetic unit (CPU) 25 (or 35) are processed into data and recorded in the memory 26 (or 36).

Thereafter, the data recorded in the memory 26 (or 36) can be input to the computer 9 and analyzed using the analysis software program 11.
The analysis result is output from the printer 10.

Therefore, the respiratory air analysis system 1 having the above configuration
In the case where is used, it is possible to perform analysis on respiratory air having the following contents and analysis using the analysis result.

First, basic and detailed data of respiratory air flow and O ₂ concentration and CO ₂ concentration in respiratory air for lower limb exercises such as an exercise load test of a subject are stored in a first respiratory air analyzer 2. And measure for each breath.

More specifically, the subject wearing the respiratory air sampling mask 4 can apply a predetermined load (for example, an ergometer (not shown) or a treadmill (not shown)) to the subject.
50 W load for 10 minutes), and the respiratory air flow rate and the O ₂ concentration and CO ₂ concentration in the respiratory air during that period are measured by the flow meter 41 and the first respiratory air analyzer 2 and measured. The data on the first respiratory gas thus obtained is stored in the arithmetic unit 2
5, and stored in the memory 26.

Subsequently, for the same subject, the data of the respiratory air flow rate and the O ₂ concentration and CO ₂ concentration in the respiratory air during the exercise that the subject wants to investigate are transmitted to the second respiratory air analyzer 3. Measure using

More specifically, the subject wearing the respiratory air sampling mask 4 and carrying the second respiratory air analyzer 3 and the battery 8 performs the exercise (eg, daily housework or Sports), the flow meter 4 measures the respiratory air flow and the O ₂ concentration and CO ₂ concentration in the respiratory air during the period.
The data relating to the second respiratory air measured by the first or second respiratory air analyzer 3 is stored in the memory 36 via the arithmetic unit 35.

The data relating to the first respiratory air and the second
The data relating to the respiratory gas is taken into the computer 9 and analyzed by the analysis software program 11, for example, as follows.

FIG. 3 is a diagram schematically showing the relationship between the amount of oxygen intake and the amount of carbon dioxide emitted in the data on the first breath and the data on the second breath when the analysis according to the present invention is performed. It is.

The horizontal axis in FIG. 3 shows the oxygen intake, and the vertical axis shows the carbon dioxide emission .

The relationship between the oxygen intake ( first selection data ) and the carbon dioxide emission ( first selection data ) in an exercise load test using a treadmill (not shown) is shown as the first respiratory air data (FIG. Relationship between oxygen intake ( second selection data ) and carbon dioxide intake ( second selection data ) when playing soccer temporarily as data on the second breathing air (shown by a circle in the middle) (Figure) (Indicated by ● in the figure) is schematically plotted.

Thus, for example, information such as a large amount of carbon dioxide emission for the same oxygen intake can be obtained in soccer as compared to a basic exercise (exercise by a treadmill).

The health condition, therapeutic effect, exercise ability, etc. of the subject can be evaluated using, for example, the following parameters P ₁ and P ₂ .

[0038]

(Equation 1)

[0039]

(Equation 2)

In the respiratory air analysis system 1 according to the present invention described above, the first respiratory air analyzer 2 analyzes the data relating to the first respiratory air for each breath of the subject for a predetermined exercise, The second respiratory analyzer 3 analyzes data on the subject's second respiratory air for a given exercise, and the first respiratory air is analyzed by a computer 9 incorporated in the system .
Selection data and second selection data in
Corresponds to the first selected data in the data on respiratory air
Since the comparative analysis is performed with the second selection data, it is possible to compare and analyze the accurate basic data on the movement of the subject and the data during the operation that the user actually wants to know. In addition, it is possible to more accurately evaluate the health condition, therapeutic effect, exercise ability, and the like of the subject.

Also, since the apparatus has a respiratory air analysis function at both a predetermined exercise time and an arbitrary exercise time, other parts other than the analysis function unit of the respiratory air analysis system can be shared. The cost can be reduced as compared with the case where the apparatus is used.

Since only the flow rate of the respiratory gas and the O ₂ concentration in the respiratory gas are analyzed by the second respiratory gas analyzer 3, the weight of the apparatus itself can be reduced and the cost can be reduced.

In the embodiment, a memory 36 is provided in the second respiratory analyzer 3 as data storage and transmission means for the second respiratory gas, and the data is transmitted from the memory 36 to the computer 9. However, a configuration in which data communication means is provided to transmit data to the computer 9 in real time may be employed.

The data analysis means may be incorporated in the first respiratory analyzer or may be separate.

[0045]

According to the first aspect of the present invention, the first respiratory analysis means analyzes the first data relating to the respiratory air of each of the subjects with respect to the predetermined exercise, and examines the subject.
The second data relating to the breath of the subject for the arbitrary exercise is analyzed by the second breath analyzing means portable to the body of the subject, and the data in the first data of the subject is analyzed by the data analyzing means.
The first selection data and the first selection data in the second data
Data is compared and analyzed with the second selection data corresponding to the
In this way, it is possible to analyze the basic data of the subject's movement accurately and the data during the actual operation that the user actually wants to know, and to analyze the subject's health and treatment compared to the conventional data analysis of only one of them. It is possible to more accurately evaluate the effect or exercise ability.

Further, since the apparatus has a respiratory air analysis function at both a predetermined exercise time and an arbitrary exercise time, other parts other than the analysis function unit of the respiratory air analysis system can be shared, so that separate functions are provided. The cost can be reduced as compared with the case where the apparatus is used.

According to the second aspect of the present invention, data communication
Means can be sent to data comparison means in real time
Therefore, the comparison between the first data and the second data is real time.
You can

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of a respiratory air analysis system according to an embodiment of the present invention.

FIG. 2 is a block diagram of a first respiratory analyzer in FIG. 1;

FIG. 3 is a diagram schematically showing a relationship between oxygen intake and carbon dioxide emission in data on a first breath and data on a second breath when an analysis according to the present invention is performed.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Respiratory air analysis system 2 First respiratory air analyzer (first respiratory air analyzer) 3 Second respiratory air analyzer (second respiratory air analyzer) 9 Computer (data analyzer)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G01N 33/48-33/52 G01N 33/58-33/98 A61B 5/08

Claims (2)

(57) [Claims] 1. A respiratory air analysis system for analyzing data related to respiratory air such as a flow rate of a respiratory air of a subject and a concentration of a gas in the respiratory air, wherein each respiratory air of the subject for a predetermined exercise is analyzed. First respiratory gas analysis means for measuring and analyzing first data relating to each respiratory gas, the first respiratory gas analyzing means being carried on a part of the body of the subject, and relating to the subject's second respiratory gas for any exercise Second respiratory gas analyzing means for measuring and analyzing second data, and first selected data in the first data of the subject
And corresponding to the first selected data in the second data
Analysis means for comparing and analyzing the second selected data to be analyzed
And a respiratory air analysis system comprising: 2. The method according to claim 2, wherein said second respiratory air analyzing means includes a plurality of data.
Data communication means that can transmit data to data analysis means in real time
The respiratory air analysis system according to claim 1 , further comprising a step .