JP2005230035A - Apparatus for medical examination of chemical sensitivity - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To uniformize a chemical concentration inside a booth for medical examination, to perform tests under different conditions as many as possible within limited time, and to evade the situation that the reaction of a patient is affected and resulted in an inaccurate experiment caused by putting mental burdens on the patient relating to an apparatus for medical examination of chemical sensitivity. <P>SOLUTION: The apparatus is constituted of a chamber, a testing booth arranged adjacently to the chamber, an air supply system for supplying clean air to each of the chamber and the testing booth, and an air discharge system for discharging air from each of the chamber and the testing booth. The testing booth is provided with: the booth for the medical examination provided with an introduction part communicating with the air supply system disposed on a ceiling side and an air discharge part communicating with the air discharge system disposed on a floor surface or wall surface side; and a circulation shaft arranged adjacently to the booth for the medical examination through a jetting part and a suction part and provided with a blower in the jetting part for fetching chemicals injected from a chemical injector and circulating the air in the booth for the medical examination through the jetting part and the suction part by the blower. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a device for diagnosing chemical sensitivity.
The booth for diagnosing chemical hypersensitivity is a facility for monitoring EEG and other reactions by bathing patients (subjects) in stages with varying concentrations of chemical substances to diagnose and treat chemical hypersensitivity. This is a booth facility for injecting chemical substances.
When examining / treating patients (subjects) with chemical sensitivity, the booth will change specific chemical substances step by step at a concentration 1/10 to 1 times the indoor concentration guideline value indicated by the Ministry of Health, Labor and Welfare. inject. The concentration in the booth must be uniform around the patient (subject) and reach a predetermined concentration in a short time. In this case, the chemical substance with a high concentration should not be sprayed on the patient (subject) with respect to the chemical substance concentration to be reached. In addition, when a chemical substance is sprayed once and the next diagnostic action is started, it is necessary that there is no residue of the chemical substance sprayed last time.

Conventionally, as a booth for diagnosing chemical hypersensitivity, “environmental challenge test booth system” (Patent Document 1) and “clean space system for chemical hypersensitivity diagnosis / treatment” (Patent Document 2) are known.
This will be described with reference to FIG.
A chamber 2 forming an ultra-clean space, a testing booth 3 for diagnosing and treating chemical sensitivity provided outside the chamber 2, and a supply for supplying air to the chamber 2 and the testing booth 3, respectively. Air systems 4 and 5 and exhaust systems 6 and 7 for discharging air from the chamber 2 and the testing booth 3 are provided. The air supply system 4 to the chamber 2 includes an air conditioner 8 and an adsorption device 9, and the air supply system 5 to the testing booth 3 is arranged to supply air passing through the chamber 2 to the testing booth 3. And a chemical substance injection device 10 is provided.

  The chemical substance injection apparatus 10 includes a chemical substance injection unit capable of measuring and injecting a chemical substance, a vaporization part for heating and vaporizing the injected chemical substance, and a testing booth by diluting the vaporized chemical substance with clean air. 3 and a conveying section that feeds into an air supply system 5. The walls and ceiling of the testing booth 3 use enameled iron plates with enamelled surfaces made of steel plates. The joint agent uses kaolin or a material composed of calcined clay, rock wool, and sodium silicate binder. The floor is made of natural marble or granite, and these materials are selected because they do not generate gaseous organic and inorganic materials.

  The case where the environmental challenge test which is one of the diagnosis of chemical substance hypersensitivity is performed by the system shown in FIG. 6 will be described. This is a diagnostic method in which a patient is placed in a testing booth 3 in which the chemical substance is adjusted to a certain concentration, and a very small amount of chemical substance is exposed to identify the chemical substance causing the patient reaction. This diagnostic facility is required to maintain the concentration of a specific chemical substance accurately in a situation where a very low concentration of the chemical substance is always secured. Table 1 shows the main chemical substances used in the diagnosis and their concentrations.

In this state, the patient sits on a chair placed in the testing booth 3 and is resting. The testing booth 3 has a glass window, and the doctor constantly observes the patient's reaction. A specific chemical substance such as formaldehyde is injected into the testing booth 3 so that the patient does not sense it.
First, the patient enters a very low anterior chamber (chamber 2) with chemicals below 30 μg / m ^{3 and} spends 30 minutes to 1 hour. Interviews such as questionnaires about the environment that patients have spent so far. If there is a chemical substance that is suspected as the occurrence of chemical substance hypersensitivity, the Ministry of Health, Labor and Welfare will indicate the specific chemical substance so that the patient will not be noticed, for example, as shown in FIG. The chemicals are injected in stages so as to be about 1/10 of the indoor concentration guideline value. When a certain concentration is reached, the exposed state is maintained for about 15 to 30 minutes, and the change and reaction of the patient's symptoms before and after inhalation are observed through the glass window. If there is no change in symptoms after a single injection, the patient exits once and completely discharges the chemical in the testing booth 3 to bring the chemical concentration to a very low concentration. Usually, it takes time for the concentration to be reduced to 30 μg / m ³ or less because of the adsorption effect of the booth wall surface and air conditioning duct, so the retest will be the next day. Again, a chemical concentration of about half the concentration guideline value of the Ministry of Health, Labor and Welfare is injected, and the patient's reaction is observed.

Japanese Patent No. 3027945 Japanese Patent No. 3064955 Japanese Patent Laid-Open No. 11-128645

However, when performing a challenge test by injection of a chemical substance, which is a diagnosis of a chemical substance, using the testing booth 3 shown in FIG. 6, the following problems arise.
(1) As a means for injecting the chemical substance into the air supply system 5, a method of supplying the chemical substance into the testing booth 3 in a diluted state is adopted, and the chemical substance concentration in the testing booth 3 is predetermined. Since the method of depending on the amount of air supplied to the testing booth 3 is used for the time required to reach the concentration, it takes time until the inside of the testing booth 3 reaches a predetermined concentration.
(2) When injecting the chemical substance, the testing booth 3 is also exhausted at the same time. Accordingly, air is attracted from the chamber 2 that forms the surrounding ultra-clean space, and contamination in the testing booth 3 is caused. Arise. Further, since the injected chemical substance merges with the air in the chamber 2 forming the ultra-clean space in the ceiling chamber 3a, it is supplied from the ceiling surface without being completely mixed and distributed in the chemical substance concentration in the testing booth 3. Will occur.
(3) In order to inject high-concentrated chemical substances into the duct of the air supply system 5, in order for the duct to absorb the chemical substances in the duct and re-dissipate, stop injection and keep flowing clean air. However, it takes time until the chemical substance concentration in the testing booth 3 is reduced. Furthermore, since the concentration of the chemical substance in the testing booth 3 is reduced only by the exhaust system, the effect of reducing the chemical substance adsorbed by the duct cannot be expected, and it takes time to prepare the environment for initialization and the next examination. .
(4) As a material for the testing booth 3, enamel and natural stone with little emission of chemical substances are used. However, when these adsorb chemical substances, there is an effect of re-emission. In addition, there are limitations on the design material selectivity.
(5) The chemical substance concentration in the testing booth 3 is determined by the dilution rate calculated from the gas injection amount and the air amount of the air supply system mixed with the air supply / exhaust amount, but reaches a predetermined concentration. The control system up to is not shown.
(6) At the time of filing of Patent Documents 1 and 2, although it is still in the research stage and technical content is excellent, as a part of hospital work, a full-fledged diagnosis and treatment of many patients (subjects) is performed. Or there is not much thought of making it successful as a business, and chemical and physical environmental factors that may affect people are well considered, but psychological things are not considered .

Therefore, the first object of the present invention is to make the concentration of the chemical substance in the examination booth uniform so that the patient (subject) is not sprayed with a chemical substance at a higher concentration than the setting, so that a more accurate examination can be performed. An object of the present invention is to provide an apparatus for diagnosing chemical hypersensitivity that can be performed.
In addition, the second object of the present invention is to perform as many tests under different conditions as possible within a limited time. Therefore, the time required for one experiment is reduced by shortening the time required for starting and initializing each experiment. It is an object of the present invention to provide a device for diagnosing chemical hypersensitivity that can shorten the time as much as possible.

  Furthermore, the third object of the present invention is to avoid the inaccuracy of the experiment by influencing the response of the patient (subject) by placing a psychological burden on the patient (subject). Rather than being experimented in, the object is to provide a device for diagnosing chemical hypersensitivity that makes it possible to perform a test without being strained in a place close to the atmosphere of a daily living space.

  The invention according to claim 1 is a chamber that forms an ultra-clean space for diagnosing and treating chemical hypersensitivity, a testing booth disposed adjacent to the chamber, and the chamber and the chamber via an air purifier. An air supply system that supplies clean air to the testing booth, and an exhaust system that exhausts air from the chamber and the testing booth, respectively, and the testing booth is provided on the ceiling side. A clean air introduction part that communicates with the exhaust system, an exhaust part that communicates with the exhaust system provided on the floor or wall surface side, a diagnostic booth for diagnosing chemical hypersensitivity, and an ejection part in the diagnostic booth And a suction unit provided adjacent to each other, and a blower is provided in the ejection part, and a chemical substance injected from a chemical substance injection device is taken in, and the ejection is performed by the blower. Characterized in that it comprises a circulation shaft for circulating air in the examination booth through said suction portion with.

The invention according to claim 2 is the apparatus for diagnosing chemical sensitivity according to claim 1, wherein the circulation shaft includes a mixing panel on the suction side of the blower.
The invention according to claim 3 is the apparatus for diagnosing chemical sensitivity according to claim 2, wherein the gas mixing panel includes a heating element.
According to a fourth aspect of the present invention, in the apparatus for diagnosing chemical sensitivity according to the first aspect, the blower has an air volume that is at least twice as large as an air volume of clean air supplied from the air supply system to the medical examination booth. It is characterized by being operated so as to circulate.

The invention according to claim 5 is the apparatus for diagnosing chemical hypersensitivity according to claim 1, wherein the diagnostic booth has a wall surface formed of a panel material in which a heating element is incorporated on the back surface of the interior material. And
The invention according to claim 6 is the apparatus for diagnosing chemical sensitivity according to claim 1, wherein the examination booth has a wall surface by disposing a transparent panel material obtained by polymerizing a heating element on the surface of the interior design material. Is formed.

(1) It is possible to make the concentration in the examination booth uniform so that the patient (subject) is not sprayed with a chemical substance having a higher concentration than the setting, and more accurate diagnosis can be performed.
(2) By desorbing the adsorbed chemical substance and reducing the chemical substance concentration in the examination booth in a short time, it is possible to shorten the waiting time of the patient (subject) and improve the operation efficiency of the medical treatment frequency facility. .
(3) Designability can be improved.
(4) By shortening the interval between multiple tests, the burden on the patient (subject) is low, and for the facility operator, the turnover rate is increased, enabling more patients (subjects) to be diagnosed in a certain period of time. It becomes.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
1 and 2 show a chemical hypersensitivity diagnosis device 20 according to an embodiment of the present invention (corresponding to claims 1 to 6).
The chemical hypersensitivity diagnosis apparatus 20 according to the present embodiment includes a chamber 21 that forms an ultra-clean space for diagnosing and treating chemical hypersensitivity, and a testing that is disposed adjacent to the chamber 21 via a door 50. A booth 25; an air supply system 40 for supplying clean air to the chamber 21 and the testing booth 25 via an air purifier; and exhaust systems 45 and 47 for discharging air from the chamber 21 and the testing booth 25, respectively. It is configured.

The chamber 21 includes an air introduction unit 22 that communicates with the air supply system 40, an exhaust unit 23 that communicates with the exhaust system 45, and an exhaust unit 24 that communicates with the return path of the air supply system 40.
The testing booth 25 includes a diagnosis booth 26 for diagnosing chemical sensitivity and a circulation shaft 30 disposed adjacent to the diagnosis booth 26.
The examination booth 26 includes a clean air introduction section 27 that communicates with an air supply system 40 provided on the ceiling side, and an exhaust section 28 that communicates with an exhaust system 47 on the floor surface or wall surface side (the floor surface in this example). Provided.

As shown in FIG. 3, the examination booth 26 has a wall surface made of a panel material in which a heating element 26b such as a planar heating element or a linear heating element and a calcium silicate plate 26c are incorporated between a pair of steel plates 26a, 26a. Is formed. Further, as shown in FIG. 2, the examination booth 26 is provided with a glass window 29 for observing the change or reaction of the symptoms of the patient (subject).
The circulation shaft 30 is a space that communicates with the examination booth 26 via the ejection portion 31 and the suction portion 32, the blower 33 is provided in the ejection portion 31, the mixing panel 34 is provided on the suction side of the blower 33, and the outside An introduction unit 35 for taking in a chemical substance injected from the chemical substance injection device 36 installed in is provided. The chemical substance injection device 36 is an apparatus that can vaporize and inject a cylinder or a reagent whose chemical substance concentration is adjusted. In FIG. 2, the standard gas cylinder 36a is shown. Each standard gas cylinder 36a communicates with the introduction unit 35 via a mass flow controller 36b and a switching valve 36c. The mass flow controller 36b controls the introduction of the standard gas cylinder 36a by predictive control of the concentration reached by the VOC sensor 36d provided in the examination booth 26. However, this control system can also be performed according to a known method.

The blower 33 has an air volume that is at least twice that of the clean air supplied from the air supply system 40 to the examination booth 26, and the air in the examination booth 26 passes through the ejection part 31 and the suction part 33. 26 and the circulation shaft 30 are operated to circulate.
The mixing panel 34 is formed by assembling a plurality of steel plates 34a such as stainless steel in a stepped shape or a spiral shape so that the chemical substance introduced from the chemical substance injection device 36 is sucked into the blower 33 as shown in FIG. A stirring device that can be mixed with the air in the circulation shaft 30 is configured.

Further, the mixing panel 34 is configured such that a surface heating element, a linear heating element, or the like is sandwiched between steel plates such as stainless steel, and the surface temperature can be heated to about 40 ° C.
The air supply system 40 takes in outside air through the external conditioner 41, cleans it with the air conditioner 42 and the air purifier 43, and then passes through the high-performance filter 44 such as a HEPA filter and the testing booth 25. Supply clean air. Further, the air supply system 40 returns a part of the air in the chamber 21 to the air conditioner 42 for circulation.

One exhaust system 45 exhausts part of the air in the chamber 21 through the fan 46, and the other exhaust system 47 exhausts part of the air in the examination booth 26 through the fan 48.
Next, the operation of the embodiment thus configured will be described.
First, the air supply system 30 and the exhaust systems 45 and 47 are driven to make the chamber 21 and the examination booth 26 an ultra-clean space (for example, a very low clean area with a chemical substance of 30 μg / m ³ or less).

Next, the patient (subject) is placed in the chamber 21 and allowed to spend 30 minutes to 1 hour. Interviews such as questionnaires about the environment that patients (subjects) have spent so far. When there is a chemical substance that is suspected as the occurrence of chemical substance hypersensitivity, the door 50 is opened and the patient (subject) is placed in the examination booth 26.
In this state, the patient (subject) is resting on a chair placed in the examination booth 26. Through the glass window 29 provided in the examination booth 26, the doctor constantly observes the reaction of the patient (subject).

Next, in order to prevent the patient (subject) from noticing, the specific chemical substances shown in Table 1 are injected step by step so as to be about 1/10 of the indoor concentration guideline value of the chemical substances indicated by the Ministry of Health, Labor and Welfare. To do.
Here, in the examination booth 26, the blower 33 of the circulation shaft 30 is driven to circulate at least twice the clean air supplied to the examination booth 26, and gas is supplied from the chemical substance injection device 36 into the circulation shaft 30. inject. When the concentration of the chemical substance in the examination booth 26 reaches a certain concentration, the exposed state is maintained for about 15 to 30 minutes, and the change and reaction of the patient (subject) symptoms before and after the inhalation are displayed on the glass window 29. Observe over.

At this time, the chemical substance concentration in the examination booth 26 is obtained by the following (formula 1). However, the clean air that is normally supplied does not contain chemical substances and C ₀ = 0. Here, as shown in the following 1) and 2), the necessary ventilation volume of the examination booth 26 should be maintained at a constant temperature so that the basis of the Building Standard Law and the patient (subject) can receive a diagnosis without discomfort. It depends on the conditions.
C = C ₀ + C _v × M / Q ₁ (1)
C: Chemical substance concentration in the examination booth 26 [μg / m ³ ]
C ₀ : Chemical substance concentration of clean air [μg / m ³ ]
C _v : concentration of chemical substance to be injected [μg / m ³ ]
M: Injection amount of chemical substance [μg / h]
Q ₁ : Necessary ventilation volume (supply amount of clean air) of the examination booth 26 [m ³ / h]
1) Necessary ventilation rate according to the Building Standard Law According to the Building Standard Act, the necessary ventilation rate in the living room should be 20m ³ / person · h or more. In addition, in the case of a house, the ventilation by the introduced outside air that should be secured in order to reduce the chemical substances in the room shall ensure ventilation of 0.5 times / h or more with respect to the volume of the target room.

Therefore, when the volume of the examination booth 26 for performing the examination is 15 m ³ , the number of patients (subjects) entering the examination booth 26 is one, and therefore the minimum is 20 m ³ / h or more.
2) Ventilation amount due to subject's heat load Since the patient (subject) sits and waits for a long time in the examination booth 26, it is desirable to maintain a constant temperature by air conditioning. It is necessary to process the sensible heat load (at the time of static sitting: about 50 kcal / h) generated from the patient (subject) so that the patient (subject) does not feel uncomfortable. When the temperature difference of the supply air with respect to the set temperature in the examination booth 26 is 7 ° C., the supply amount of clean air is about 25 m ³ / h.

For the above reason, the necessary ventilation amount of the clean air supplied to the examination booth 26 is about 20 to 30 m ³ / h.
The concentration in the examination booth 26 is set so that, in the diagnosis and treatment of chemical substance hypersensitivity, the atmospheric concentration diluted in steps from 1/10 based on the indoor concentration guideline value of the chemical substance established by the Ministry of Health, Labor and Welfare. The patient (subject) is exposed to around the guideline concentration. Table 1 shows the concentrations of main chemical substances used in the examination.

Moreover, the arrival time of the chemical substance predetermined concentration in the examination booth 26 is 30 m ³ / h (equivalent to 2 times / h ventilation) and 75 m ³ / h (5 times) in the examination booth 26 having a volume of 15 m ^3. / H ventilation), toluene is injected into the examination booth 26 to make it 1/10 of the concentration guideline value (0.07 ppm) of the Ministry of Health, Labor and Welfare. When adjustable 35 ppm toluene is injected, the gas flow rates calculated from the equilibrium state of dilution with clean air are 0.1 liter / minute and 0.25 liter / minute, respectively.

FIG. 4 shows the result of calculating the toluene concentration in the diagnostic booth 26 from the following (formula 2) under each condition.
_{C = M / Q 1 × {} 1-e (-Q 1 × t / R)} ···· (2 type)
C: Chemical substance concentration in the examination booth 26 [μg / m ³ ]
Q ₁ : Clean air supply volume (ventilation volume) [m ³ / h]
M: Chemical substance injection amount (gas concentration x flow rate) [μg / h]
R: Volume of the examination booth 26 [m ³ ]
t: Elapsed time after gas injection [h]
Here, if the injection gas concentration is the same, but rather the supply of clean air often becomes shorter time to reach a predetermined concentration, 75 m ³ / h in about 1 hour, about 3 30 m ³ / h It takes more than an hour. During this time, the consumption of the injected gas is 15 liters and 18 liters or more.

Therefore, if the inside of the examination booth 26 is agitated and the concentration is made uniform instantaneously, the supply amount (ventilation amount) of clean air to the examination booth 26 and the amount of injected gas are temporarily increased at the initial stage of gas injection. Thus, the arrival time can be shortened and the consumption of the injected gas can be reduced.
Next, if no change is observed in the symptoms after one injection, the patient (subject) is withdrawn once.

  Next, the heating elements provided on the wall surfaces of the mixing panel 34 and the examination booth 26 are energized to heat the surface temperature to about 40 ° C. As a result, the ambient temperature in the circulation shaft 30 and the examination booth 26 increases, and the chemical substances adsorbed on the mixing panel 34 and the wall surface of the examination booth 26 are released. Further, the air heated by the blower 33 is sent into the examination booth 26, the temperature inside the examination booth 26 rises, and the chemical substance adsorbed on the wall surface of the examination booth 26 is released. At this time, by temporarily increasing the amount of clean air supplied to the examination booth 26, the chemical substances detached from the wall surface of the examination booth 26 can be discharged to the outside of the examination booth 26 at an early stage.

By this operation, the concentration of the chemical substance in the examination booth 26 can be reduced to 30 μg / m ³ or less.
Next, a chemical substance is injected into the circulation shaft 30, the chemical substance concentration in the examination booth 26 is set to about ½ of the concentration guideline value of the Ministry of Health, Labor and Welfare, and the reaction of the patient (subject) is observed.
Next, after the patient (subject) exits, the heating panel provided on the walls of the mixing panel 34 and the examination booth 26 is energized to heat the surface temperature to about 40 ° C., and the chemical substances in the examination booth 26 The work of reducing the concentration of the solution to 30 μg / m ³ or less is performed.

  As described above, according to the present embodiment, the specific chemical substance injected at a concentration 1/10 to 1 times the indoor concentration guideline value indicated by the Ministry of Health, Labor and Welfare Since the circulation shaft 30 that circulates more than twice the amount of air supplied to the examination booth 26 from a portion different from the supply of the examination booth 26 after stirring and mixing is provided next to the examination booth 26, it is sensitive to chemical substances. When a patient (subject) with a symptom is diagnosed / treated, the concentration in the examination booth 26 is uniform around the patient (subject) and can reach a predetermined concentration in a short time. Of course, the chemical substance with a high concentration is not sprayed on the patient (subject) with respect to the chemical substance concentration to be reached. Also, when the chemical substance is sprayed once and the next diagnostic action is started, heat generated on the wall surface of the examination booth 26 and the mixing panel 34 in the circulation shaft 30 so that the chemical substance sprayed last time does not remain. By setting the surface temperature to 40 ° C. by heating the body, chemical substances adsorbed by baking out can be discharged.

  In the above-described embodiment, the wall surface of the booth 26 for diagnosis is formed of a panel material in which a heating element 26b and a calcium silicate plate 26c are incorporated between a steel plate 26a and a steel plate 26a such as stainless steel with little chemical substance diffusion and adsorption. However, the present invention is not limited to this. For example, as shown in FIG. 5, in order to improve the design, general interior finishing materials such as wooden materials and wallpaper, interior finishing materials such as marble, etc. By covering the surface of the interior material 26e with a transparent panel material 26d such as glass or an acrylic resin plate, the constituent material of the booth 26 for diagnosis with reduced chemical substance emission can be arbitrarily selected. Furthermore, by using a heating element in which a metal film is deposited on the transparent panel material 26d, the surface temperature can be raised and the chemical substances adsorbed on the surface of the transparent panel material 26d can be desorbed. The interior finishing material 26e is provided with a base material 26f.

In addition, in consideration of the psychological influence of the patient (subject), a planar heating element is formed on the surface of an interior design material made of a general interior finishing material such as a highly designed wood material or wallpaper, or an interior finishing material such as marble. The wall surface may be formed of a panel material obtained by polymerizing a heating element such as a linear heating element.
In this way, by changing the examination booth 26 from a laboratory consisting of a steel plate box to a space close to the atmosphere of the space in which we live everyday, it becomes possible to perform a test without tension. In particular, since patients (subjects) have many children, it is possible to derive a favorable result by making a space with careful consideration.

  It can be effectively used for diagnosis of chemical sensitivity.

It is explanatory drawing which shows the chemical substance hypersensitivity diagnostic apparatus which concerns on one Embodiment of this invention. It is explanatory drawing which shows the principal part in FIG. It is a disassembled perspective view which shows the wall surface of the booth for diagnosis in FIG. It is a figure which shows the result of having calculated the toluene density | concentration of the diagnostic booth in embodiment shown in FIG. It is a disassembled perspective view which shows the wall surface of the booth for diagnosis in FIG. It is explanatory drawing which shows the conventional chemical substance hypersensitivity diagnostic apparatus. It is a figure which shows the chemical substance density | concentration change in the booth in the examination of chemical substance hypersensitivity.

Explanation of symbols

20 Chemical Hypersensitivity Diagnosis Device 21 Chamber 25 Testing Booth 26 Diagnosis Booth 30 Circulation Shaft 33 Blower 34 Mixing Panel 36 Chemical Injection Device 40 Air Supply System 45, 47 Exhaust System

Claims (6)

A chamber forming an ultra-clean space for diagnosing and treating chemical sensitivity,
A testing booth located adjacent to the chamber;
An air supply system for supplying clean air to the chamber and the testing booth via an air purification device;
An exhaust system that exhausts air from the chamber and the testing booth, respectively,
The testing booth is
A diagnostic booth for diagnosing chemical hypersensitivity, having a clean air introduction part communicating with the air supply system provided on the ceiling side and an exhaust part communicating with the exhaust system provided on the floor or wall surface side When,
The medical examination booth is disposed adjacent to each other via a jet part and a suction part, and a blower is provided in the jet part, and a chemical substance injected from a chemical substance injection device is taken in, and the blower and the suction part are provided by the blower. A device for diagnosing chemical hypersensitivity, comprising: a circulation shaft that circulates air in the examination booth through the circulator. In the apparatus for diagnosing chemical sensitivity according to claim 1,
The said circulation shaft is equipped with the panel for mixing in the suction side of the said air blower. The chemical hypersensitivity diagnostic apparatus characterized by the above-mentioned. In the apparatus for diagnosing chemical sensitivity according to claim 2,
The apparatus for diagnosing chemical sensitivity, wherein the gas mixing panel includes a heating element. In the apparatus for diagnosing chemical sensitivity according to claim 1,
The apparatus for diagnosing chemical substance hypersensitivity, wherein the blower is operated so as to circulate at an air volume that is at least twice as large as that of clean air supplied from the air supply system to the examination booth. In the apparatus for diagnosing chemical sensitivity according to claim 1,
The diagnostic booth has a wall surface formed of a panel material in which a heating element is incorporated on the back surface of the interior material. In the apparatus for diagnosing chemical sensitivity according to claim 1,
The diagnostic booth has a wall surface formed by disposing a transparent panel material obtained by polymerizing a heating element on the surface of an interior design material.

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