JP2006325756A - Respiratory pattern-ameliorating apparatus by inspiration synchronous scent stimulation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a respiratory pattern ameliorating apparatus which relieves turbulence of the respiratory pattern caused due to stress and negative sentiment by giving scent stimulation at inspiration and guides a respiratory pattern to an ideal condition. <P>SOLUTION: The respiratory pattern-ameliorating apparatus is provided with a mask section 2 which contacts a muzzle, a valve body 11 for inspiration opened only at inspiration, an inspiration system which sends inspiration in to the mask section 2 through the valve body 11, and a valve body 12 for exhalation opened only at expiration. Further, the apparatus has a tube body 20 for respiration which is integrally formed with an expiration system discharging exhalation outside from the mask section 2 through the valve body 12 for exhalation, a pressure sensor 3 which detects the opening action of the valve body 11 for inspiration, a scent stimulation-giving means 4 which faces a scent stimulation spraying section 5 to a flow passage of inspiration which passes the valve body 11 and stores scent stimulation components of a lavender, etc. , and a control means 10 which gives scent stimulation of the lavender, etc. to inspiration synchronously with inspiration by operating the scent stimulation-giving means 4 from the detected signal of the pressure sensor 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a breathing pattern improving apparatus using inhalation-synchronized scent stimulation, and more specifically, breathing by inhalation-synchronous scent stimulation that induces a normal breathing pattern by relaxing the disorder of the breathing pattern caused by stress and negative emotions. The present invention relates to a pattern improving apparatus.

  Scent stimulation is the only sense in the five senses that can project information directly to the limbic system in the brain, the center of emotion. The act of sniffing is an act that relies on breathing inhalation (breathing in), which we have unconsciously repeating rhythms every day. The inhalation of air containing scent molecules makes the scent smell and recognize it in the brain, and the scent causes various emotions.

  Among them, a good scent can make the breathing rhythm unconsciously and slowly, and the relaxation effect of the scent is thought to have two elements: the effect of stimulation in the brain by the scent and the effect that can be caused by changes in the breathing pattern .

  It has been known that the respiratory rate increases due to some anxiety.

  FIG. 11 shows a correlation with an increase in the respiratory rate after presentation of the warning light, and FIG. 12 shows a correlation between an increase in the respiratory rate at the time of anticipatory anxiety and a feeling of characteristic anxiety.

An increase in respiratory rate due to negative emotions is not an increase in breathing commensurate with metabolism due to exercise or the like. Thus, hyperventilation due to such emotions causes excessive discharge of CO ₂ in the body and causes symptoms such as numbness of limbs, sweating, difficulty in breathing, and dizziness. If such symptoms are pathological, hyperventilation syndrome or panic disorder is diagnosed.

  By the way, there has never been a study showing the relationship between scent and respiration, and thus there is no device relating to the relationship between scent effect and respiration pattern. Conventional aromatization methods include spraying, aroma pots, sprayers, humidifiers, etc., all of which only emit aroma, and change the breathing pattern of the person. There is no attention.

  In Patent Document 1, the respiration information of the living body is compared with the previously stored target respiration pattern information, a correction value based on the difference is obtained, and further, the respiration information of the living body is corrected using the corrected respiration information. There has been proposed a breathing guidance device configured to guide a user's breathing to an ideal pattern state by controlling a stimulus signal given to the user.

However, in the case of the breathing guidance device disclosed in Patent Document 1, although attention is paid to the change in the breathing pattern of the user, the breathing pattern of the user is not improved by using scent stimulation.
JP 2002-301047 A

  The problem to be solved is that there is no breathing pattern improvement device that relieves the disorder of breathing patterns caused by stress and negative emotions by applying scent stimulation during inspiration and induces breathing patterns to an ideal state Is a point.

  The breathing pattern improving device by inhalation synchronized scent stimulation of the present invention comprises a mask part capable of breathing while in contact with the nostril and an intake valve element that opens only at the time of inspiration. An inhalation system to be sent to the mask unit, and an exhalation valve body that opens only at the time of exhalation, and an exhalation system that discharges exhalation from the mask unit to the outside through the exhalation valve element, and the opening of the inhalation valve element Detecting means for detecting the operation, scent stimulation applying means having the scent stimulation spray portion facing the intake flow path passing through the intake valve body, and operating the scent stimulation applying means based on the detection signal of the detection means And a control means for applying a scent stimulus to the inspiration in synchronization with inspiration.

The present invention has the following effects.
According to the first aspect of the present invention, when the user inhales with the mask portion in contact with the nostril, the detection means detects the opening operation of the intake valve element, and the control means detects The scent stimulus applying means is operated based on the detection signal of the means, and the scent stimulus is applied to the inspiration in synchronization with the inhalation, so that the user can suck the scent stimulus together with the inspiration, and the user's own stress The disturbance of the breathing pattern caused by negative emotions is alleviated, and as a result, the breathing pattern of the user can be guided to an ideal state.

  According to the second aspect of the present invention, the user can inhale scent stimuli such as lavender as well as inhalation based on the same configuration as the first aspect of the invention. The resulting disturbance in the breathing pattern is alleviated, and as a result, the breathing pattern of the user can be guided to an ideal state.

  According to the third aspect of the present invention, when the user inhales with the mask portion in contact with the nostril, the pressure sensor detects the opening operation of the intake valve element, and the control means detects the pressure. Since the air pump unit is operated based on the detection signal of the sensor, the scent stimulation such as lavender is given to the intake air flowing from the scent stimulation storing unit to the mask unit through the scent stimulation spraying unit in synchronization with inspiration. The user can inhale scent stimuli such as lavender along with inhalation, and the disturbance of the breathing pattern caused by the user's own stress and negative emotions is alleviated, and as a result, the user's breathing pattern is guided to the ideal state can do.

  The present invention reduces the disorder of the breathing pattern caused by stress and negative emotions by giving a scent stimulus at the time of inhalation, and aims to induce the breathing pattern to an ideal state in a state where it is in contact with the nostril It has a mask part that can breathe in, a valve body for inhalation that opens only during inspiration, an inhalation system that sends inspiration to the mask part through the valve body for inspiration, and a valve body for exhalation that opens only during inspiration, A breathing cylinder integrally configured with an exhalation system that discharges exhaled air from the mask portion to the outside through the exhalation valve body, and communicates with the mask portion at a position between the inspiratory valve body and the exhalation valve body; Detecting means for detecting the opening operation of the intake valve body; and a scent stimulation applying means for storing a scent stimulation component such as a lavender, facing the scent stimulation spray portion in the flow path of the intake air passing through the intake valve element; The scent stimulation applying means is based on the detection signal of the detection means. It was created and implemented by the configuration and control means for imparting to the intake fragrance stimuli such as lavender in synchronization with inspiration.

Examples of the present invention will be described in detail below.
An apparatus for improving a breathing pattern by inhalation-synchronized scent stimulation according to an embodiment of the present invention is an apparatus for making a breathing pattern that rises due to external stress or negative emotion into an ideal breathing pattern by stimulating a good scent. It is. That is, it is an apparatus for improving an ideal breathing pattern by mitigating an increase in breathing pattern caused by stress or negative emotion by stimulation of fragrance.

  The most ideal breathing rate is 12 to 15 times per minute. However, the respiratory rate increases from 18 to 20 times per minute due to external stress and inner feelings, and this increase correlates with the characteristic anxiety of the individual. A person who is highly anxious about the characteristic has a higher respiratory rate.

  Anxiety is reduced by optionally breathing slowly while in such anxiety. From the researches of the present inventors so far, it has been found that the center of negative emotions such as anxiety and fear is a place called limbic amygdala which is a center that controls emotions. The site is also related to breathing, and an increase in respiratory rate is observed by electrical stimulation of the site.

  As a method of slow breathing, the administration of a good scent reduces the respiratory rate unintentionally and unconsciously. The scent can be strongly recognized by inhaling the breath, and the scent information is projected from the nasal olfactory cells to the amygdala and other limbic systems, so the emotional change due to the scent is also large.

  From these studies, this device was invented in consideration of how the breathing pattern can be improved and escaped from the mental and physical stress state.

  In other words, based on the inventor's research that the breathing rate decreases (slows down) by sniffing a good scent, and that the anxiety can be reduced by voluntarily reducing the breathing rate (slowing down) This improves the disorder of breathing patterns caused by negative emotions. In addition, the scent has a large habituation phenomenon, and the threshold for the scent is reduced by being exposed to the same scent for a long time. In this embodiment, such a familiar phenomenon is also taken into consideration.

  A breathing pattern improving apparatus (hereinafter referred to as “breathing pattern improving apparatus”) 1 by inhalation synchronized scent stimulation according to the present embodiment will be described in detail below with reference to FIGS. 1 and 2.

  As shown in FIG. 1, the breathing pattern improving apparatus 1 includes a substantially cylindrical mask portion 2 that can breathe in a state of being in contact with the nostril, and an intake valve body 11 that opens only during inspiration. Is provided with an inhalation cylinder part 21a that sends the air to the mask part 2 via the inspiratory valve element 11 and an exhalation valve element 12 that opens only at the time of exhalation, and the exhaled air from the mask part 2 is discharged to the outside via the exhalation valve element 12 And an exhalation cylinder part 21b which is integrated, and has an inhalation valve body 11 and a breathing cylinder body 20 communicated with the mask part 2 at a position between the exhalation valve body 12. The inhalation cylinder part 21a constitutes an inhalation system, and the exhalation cylinder part 21b constitutes an exhalation system.

  The mask portion 2 includes a nostril contact portion 2a that contacts the user's nostril, and a connecting tube portion 2b that connects the nostril contact portion 2a and the breathing cylinder 20.

  The breathing pattern improving apparatus 1 is disposed in the vicinity of the intake valve element 11, and includes a pressure sensor 3 which is a detection means for detecting the opening operation of the intake valve element 11, a scent stimulus applying means 4, and a control. And means 10.

  The scent stimulation imparting means 4 is disposed on the outer periphery of the scent stimulation spray unit 5 and the breathing cylinder 20 disposed in the vicinity of the intake valve body 11 and communicates with the scent stimulation spray unit 5 such as lavender, for example. The scent stimulation storage unit 6 stores the scent stimulation component and the air pump unit 7 that sends air to the scent stimulation storage unit 6. In this embodiment, two fragrance stimulation spraying sections 5 and two fragrance stimulation storage sections 6 are provided.

  Further, the control means 10 operates the air pump unit 7 based on the detection signal indicating the opening operation of the intake valve body 11 by the pressure sensor 3, and the scent is stored from the scent stimulation storage unit 6 in synchronization with inhalation. Control for imparting scent stimulation to the intake air flowing to the mask unit 2 through the stimulation spray unit 5 is performed.

  In the breathing pattern improving apparatus 1 of the present embodiment, when the user inhales in a state where the nostril contact portion 2a of the mask portion 2 is in contact with the nostril, only the intake valve body 11 is opened, At this time, the pressure sensor 3 detects the opening operation of the intake valve body 11 and sends a detection signal to the control means 10.

  The control means 10 operates the air pump unit 7 based on the detection signal from the pressure sensor 3, and air is sent from the air pump unit 7 to the scent stimulation storage unit 6. Thereby, scent stimulation, such as lavender, is given to inhalation which flows in the mask part 2 from the scent stimulation storage part 6 through the scent stimulation spray part 5 in synchronization with the user's inspiration.

  As a result, the user can inhale scent stimuli such as lavender along with inhalation, and the disturbance of the breathing pattern caused by the user's own stress and negative emotions is alleviated, and the user's breathing pattern is brought into an ideal state. It is possible to guide. When the user performs the exhalation operation after the inhalation operation, the inhalation valve body 11 is closed, the exhalation valve body 12 is opened, and the exhalation of the user is discharged to the outside from the exhalation cylinder portion 21b.

  As described above, according to the respiratory pattern improving apparatus 1 of the present embodiment, the respiratory rate increased by the scent stimulation is returned to the ideal respiratory rate, and further, the negative emotion is alleviated by the stimulation to the brain by the scent. Can do. That is, an increase in respiration caused by a stress environment or negative emotion occurring on the inner surface is improved to an ideal breathing pattern by stimulating a good scent, and negative emotion occurring internally is improved.

  Moreover, since the presentation of scent stimulation for a long time causes a phenomenon of habituation to the recognition of breathing patterns and scents, it is possible to prevent them by releasing other scents at certain intervals in the breathing pattern improving apparatus 1. Take possible.

  Next, specific experimental examples using the above-described breathing pattern improving apparatus 1 will be described in detail below.

  In this specific experimental example, lavender essential oil and its main components, linalool and linal acetate, are used as the scent stimulating component, and the emotion level, respiratory pattern, and alpha wave I-α at the cognitive level of the three scent stimuli. Of brain activity when alpha wave I-α appears.

(subject)
The subjects were 7 healthy adults (average 29.6 ± 10). The subject performed an olfactory test using a T & T olfactometer, and confirmed that there was no abnormality in the olfaction.

(Scent stimulation)
Authentic lavender made by Sanofral, linalool (C ₁₀ H ₁₈ O) (component 33.57%) and linalyl acetate (C ₁₂ H ₂₀ O) (component 34.82%) which are the main components of this genuine lavender The three types were examined. The chemical formula of linalool is shown in FIG. 3, and the chemical formula of linalyl acetate is shown in FIG.

  The concentrations of the three scent stimuli described above were each diluted with propylene glycol from 0.001 ppm to 10000 ppm in 10-fold units. The subject sniffed the scent stimulus soaked in 1 mm below the litmus paper (14 cm × 7 mm) in descending order of concentration, and measured respiration and electroencephalogram using the level at which the scent could be recognized.

(Respiration measurement)
The respiration measurement was performed by an aero monitor (AE280, Minato Medical Science) connected via the respiration pattern improving apparatus 1 described above. Measure minute ventilation (V _E ), tidal volume (V _T ), respiration rate (fR), oxygen consumption (VO ₂ ), and there is no change in end-tidal carbon dioxide concentration (ETCO ₂ ) It was confirmed.

(Electroencephalogram measurement)
Based on the international 10-20 method, the electrode 19 channel was mounted on the subject's head and the reference electrode was set on the right earlobe. The contact resistance was set to 10 kΩ or less. An EOG that records eye movements was placed on the left upper and lower eyelids, and recorded on EEG-1100 (manufactured by Nihon Kohden Co., Ltd.) together with the brain waves. In addition, the respiratory flow rate measured by an aero monitor was output and recorded simultaneously with the brain waves.

(Stimulation presentation)
Using the breathing pattern improving apparatus 1 described above, a scent stimulus such as lavender was applied to the inspiration in synchronization with the subject's inspiration. The stimulation time was 3 times, 30 seconds each, taking into account the phenomenon of habituation. The interval of scent stimulation was about 1 minute.

(Emotion score)
As shown in FIG. 5, the emotional score for each of the three scent stimuli consisting of genuine lavender, linalool, and linalyl acetate (visual analog scale from 0 to 100: a value corresponding to the most comfortable emotion you can think of) It was.

(Respiration pattern analysis)
Statistics are Dr. This was done using SPSS, Version 11. A one-way analysis of variance was used to analyze the emotional score. Respiratory parameters were used in a one-way analysis of variance with repeated measurements before each stimulation and stimulation time. Bonferroni's multiple comparisons were made between stimuli for both respiratory and emotional scores.

(SSB / DT)
The brain power supply was estimated using dipole tracking method software (Brain Space Navigator / BS-navi) (Brain Research and Development). The electroencephalogram is the sum of the postsynaptic potentials of the cuspid dendrites of many cortical neurons. This current source is called an electric current dipole.

  A current flows through the volume conductor, and a wave-like potential change occurs. The current dipole activity that can be recorded from the surface of the skull is not only limited by many active neurons, but also the position of the cell body and the direction of the cuspid dendrites must be constant.

  Therefore, it is easier to generate a current dipole in a region where the neuron runs.

  The problem of estimating the electromotive force distribution in the brain from the potential distribution recorded by the electrodes on the scalp is the brain potential inverse problem, and the dipole tracing method (Dipole Tracing MeThod method) solves this problem.

  In estimating the position of the current dipole from the electroencephalogram, since the conductivity of the tissue constituting the cranium is different, the calculation is performed taking them into account. The contours of the scalp, skull, and brain parenchyma are measured from the skull CT image or MRI image to create individual skull models, and all calculations are performed using the skull model of the person. However, since it is difficult to obtain MRI images of all subjects, in this study, calculations were performed using the subject's head model, which is a standard size.

  The estimated position of the current dipole assumes that an equivalent dipole exists at a certain site, and calculates the potential distribution generated on the scalp from the assumed site. The position of the current dipole and the vector component are changed so as to minimize the square error between the actually measured potential distribution and the calculated potential.

  The power source is the position where the square error is minimized. The obtained current dipole can be said to be an equivalent dipole approximate to the electromotive force in the brain as far as the potential distribution generated on the scalp is concerned. Dipolarity is used to indicate the degree of approximation. If they are exactly the same, the dipole property is 100%. We covered only 98% or more. The added waveform was subjected to frequency analysis by power spectrum analysis.

(Experimental result)
(Emotion scale)
As shown in FIG. 5, the emotional scale indicating the comfort for fragrance is different between linalool, linalyl acetate and lavender (P <0.05), and between stimuli, between linalool and lavender (P <0.05). A significant difference was observed between linalyl acetate and lavender (P <0.05).

(Breathing pattern)
In each scent stimulation of linalool, linalyl acetate, and lavender, no change was observed in the oxygen consumption VO ₂ and the end-tidal carbon dioxide concentration ETCO ₂ (average VO ₂ : 183 ± 20, ETCO ₂ : 4.9 ± 0. 2).

  In addition, as shown in FIG. 6, no change was found in the minute ventilation VE (P = 0.78), but a change was found in the tidal volume VT (P <0.01). Significant increases were observed between resting and lavender and between linalool and lavender (both P <0.05). There was a change in respiratory rate fR (P <0.05), and multiple comparisons showed a decrease between rest and lavender (P <0.05).

(Additional EEG / SSB / DT)
In each scent stimulation of linalool, linalyl acetate, and lavender, as shown in FIG. 7, an 8-12 Hz alpha wave (I-α: Inspiration phase-locked alpha oscillation) synchronized with inspiration was observed. Alpha waves I-α are not observed during exhalation and are observed consistent with inspiration. FIG. 8 shows the result of power spectrum analysis for each alpha wave I-α shown in FIG.

  Next, the position of the power source E of the alpha wave I-α is estimated by the SSB / DT method, and the position superimposed on the MRI image of the subject is schematically shown in FIGS. The estimated position of the power source E of the alpha wave I-α showed only the anatomical position recognized in 4 of 7 cases.

  As shown in FIGS. 9 and 10, in linalool, the position of the power source E is estimated in the bilateral olfactory cortex within 100 ms after the start of inspiration in 5 of 7 cases, and then in the right orbital frontal lobe in 200 to 300 ms in 6 cases. It was done.

  In linalyl acetate, the position of the power source E is estimated in 6 cases out of 7 cases in the bilateral olfactory cortex within 100 ms after the start of inspiration, in 5 cases in 7 cases from 150 ms to 300 ms, and in 2 cases in both orbital frontal lobes in 2 cases It was done.

  In lavender, 6 out of 7 cases after the start of inspiration, right olfactory cortex within 100 ms, 1 olfactory cortex on both sides, 4 out of 7 cases right hippocampus from 150 ms to 200 ms, right by 300 ms in all subjects The location of power supply E was estimated in the orbital frontal lobe.

  Considering the experimental results described above, among the three types of fragrance stimulation in this experiment, the emotional level indicating pleasure with respect to lavender is higher than the other two types, and it is also a large and slow pattern in breathing. It is recognized from changes in tidal volume VT and respiratory rate fR.

  However, alpha waves I-α were observed in all of the summed brain waves corresponding to the inspiration of each breath. Alpha waves I-α appear in a relaxed state when the eyes are closed, and their origin is the thalamus.

  Many studies on the appearance of alpha waves in olfactory stimuli have been reported so far. However, according to the study of the present inventor, the alpha wave I-α was observed not only in pleasant stimulation but also in unpleasant stimulation. Therefore, the alpha wave I-α does not appear only in a comfortable state and a relaxed state.

  The positions of the power source E of the alpha wave I-α are the olfactory cortex, hippocampus, and orbitofrontal lobe. Therefore, although the band band itself is an alpha band, the origin is different from the alpha wave that originates from the thalamus that is usually said. It is suggested that a series of activities of projection to the entorhinal cortex, hippocampus, and orbital frontal lobe accompanying inspiration generate this alpha wave I-α.

  Next, the difference in the position of the power source E depending on the type of scent stimulation will be considered. Linalol and linalyl acetate appear in the olfactory cortex on both sides immediately after inhalation, but the right olfactory cortex is dominant in lavender.

  The right olfactory cortex was dominant in the cognitive level for both comfort and discomfort. From this, it is presumed that more parts are activated when there is little information about the fragrance (such as not knowing what fragrance). The olfactory cortex projects to the hippocampus but simultaneously projects to the orbital frontal lobe. In lavender, activation of the hippocampus is observed.

  Furthermore, emotions are deeply connected with memory. Emotion is accompanied by changes in breathing. Lavender feels “good scent” and breathes deeply and slowly. The emotion and breathing responses are stored in the hippocampus. It is presumed that the scent that feels good is always associated with good memory. It can be considered that one breath with scent stimulation, one breath evokes emotion and memory.

  The respiratory pattern improving apparatus of the present invention can be widely applied not only to normal people but also to symptom reduction of patients with hyperventilation syndrome or panic disorder.

It is a schematic block diagram of the respiration pattern improvement apparatus which concerns on the Example of this invention. It is an enlarged view of the valve body part for intake of the respiration pattern improvement apparatus concerning a present Example. It is a figure which shows the chemical formula of a linalool used for a present Example. It is a figure which shows chemical formula of the linalyl acetate used for a present Example. It is a figure which shows the emotional score regarding a linalool, a linalyl acetate, and a lavender in a present Example. It is a figure which shows the minute ventilation, the tidal volume, and the respiration rate at the time of rest each scent stimulation of a linalool, a linalyl acetate, and a lavender in a present Example. It is a figure which shows the alpha wave after each fragrance stimulation provision of a linalool, a linalyl acetate, and a lavender in a present Example. It is a figure which shows the result of the power spectrum analysis about the alpha wave after the time of each fragrance stimulation provision of a linalool, a linalyl acetate, and a lavender in a present Example. It is explanatory drawing which shows the state superimposed on the figure which extracted the estimated position of the power source of the alpha wave at the time of 100 ms progress from the time of each scent irritation | stimulation of a linalool, a linalyl acetate, and a lavender in a present Example extracted. It is explanatory drawing which shows the state superimposed on the figure which extracted the estimated position of the power source of the alpha wave at the time of 250-300 ms progress from the time of each scent irritation | stimulation of a linalool, a linalyl acetate, and a lavender in a present Example. is there. It is explanatory drawing which shows the state of the respiratory rate rise after warning light presentation. It is explanatory drawing which shows the correlation with the respiratory rate rise at the time of anticipation anxiety, and characteristic anxiety.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Breathing pattern improvement apparatus 2 Mask part 3 Pressure sensor 4 Stimulation provision means 5 Stimulation spray part 6 Stimulation storage part 7 Air pump part 10 Control means 11 Inhalation valve body 12 Exhalation valve body 20 Breathing cylinder 21a Inhalation cylinder part 21b Exhalation tube part E Power supply

Claims (3)

A mask that can breathe in contact with the nostrils;
Inhalation system that has an intake valve element that opens only during inspiration, and that sends intake air to the mask through the intake valve element;
An exhalation system that includes an exhalation valve element that opens only at the time of exhalation, and exhales exhalation from the mask part to the outside through the exhalation valve element;
Detecting means for detecting an opening operation of the intake valve body;
A scent stimulation imparting means that faces the scent stimulation spray part in the flow path of the intake air that passes through the intake valve body,
Control means for operating the scent stimulation applying means based on the detection signal of the detection means, and applying the scent stimulation to inhalation in synchronization with inspiration;
A breathing pattern improving device by inhalation synchronized scent stimulation. A mask that can breathe in contact with the nostrils;
Equipped with an inhalation valve that opens only during inspiration, an inhalation system that sends inspiration to the mask through the inspiration valve, and an exhalation valve that opens only during exhalation, and exhaled from the mask An exhalation system that discharges to the outside through the body, and a breathing cylinder that communicates with the mask portion at a position between the inspiratory valve body and the exhalation valve body;
Detecting means for detecting an opening operation of the intake valve body;
A scent stimulation applying means that stores a scent stimulation component such as lavender, facing the scent stimulation spray part in the flow path of the intake that passes through the intake valve body,
Control means for operating the scent stimulation applying means based on the detection signal of the detection means, and applying scent stimulation such as lavender to the inspiration in synchronization with inspiration;
A breathing pattern improving device by inhalation synchronized scent stimulation. A substantially cylindrical mask portion capable of breathing in contact with the nostril;
Equipped with an inspiratory valve element that opens only during inspiration, an inhalation cylinder that sends inspiratory air through the inspiratory valve element to the mask, and an exhalation valve that opens only during exhalation, for exhalation from the mask An exhalation cylinder part that discharges to the outside through the valve body, and a breathing cylinder body that communicates with the mask part at a position between the inhalation valve body and the exhalation valve body;
A pressure sensor for detecting an opening operation of the intake valve body;
From the scent stimulation spraying part arranged in the vicinity of the valve body for inhalation, the scent stimulation storage part storing the scent stimulation component such as lavender arranged in the breathing cylinder and communicating with the scent stimulation spraying part, and the scent stimulation storage part A scent stimulation imparting means comprising an air pump unit that pumps a scent stimulation component to the scent stimulation spray unit;
Control means for operating the air pump unit based on the detection signal of the pressure sensor, and applying scent stimulation such as lavender to the intake air flowing from the scent stimulation storage unit through the scent stimulation spray unit to the mask unit in synchronization with inspiration When,
A breathing pattern improving device by inhalation synchronized scent stimulation.