JPH0663031A - No-breathing state deciding device at sleeping time - Google Patents
No-breathing state deciding device at sleeping timeInfo
- Publication number
- JPH0663031A JPH0663031A JP4221631A JP22163192A JPH0663031A JP H0663031 A JPH0663031 A JP H0663031A JP 4221631 A JP4221631 A JP 4221631A JP 22163192 A JP22163192 A JP 22163192A JP H0663031 A JPH0663031 A JP H0663031A
- Authority
- JP
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- Prior art keywords
- current
- change
- apnea
- belly
- breathing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
(57)【要約】 （修正有）
【構成】 可変抵抗器を伸縮性のある素材で作られた腹
巻２に取り付ける。すると、腹巻２の微妙な伸縮に伴い
抵抗値が変化するため、抵抗を流れる電流も変化する。
呼吸に伴う腹巻の伸縮変化を電流と時間の関係で表示す
る。そして、電流−時間の関係から無呼吸時間、無呼吸
周期、無呼吸回数、正常な呼吸回数および呼吸１回当た
りの呼吸量を算出して判定する。
【効果】 直接膚に触れないため、装着感がなく、入眠
に影響を与えない。そのため、十分な睡眠状態が確保さ
れ、判定の信頼性が向上する。
(57) [Summary] (Modified) [Configuration] Attach the variable resistor to the belly band 2 made of elastic material. Then, since the resistance value changes with the subtle expansion and contraction of the belly band 2, the current flowing through the resistance also changes.
The expansion and contraction change of the abdominal wrap associated with breathing is displayed in relation to the current and time. Then, the apnea time, the apnea cycle, the apnea frequency, the normal respiratory frequency, and the respiratory volume per respiration are calculated and determined from the current-time relationship. [Effect] Since it does not touch the skin directly, there is no feeling of wearing and it does not affect sleep onset. Therefore, a sufficient sleep state is secured and the reliability of determination is improved.
Description
【０００１】[0001]
【産業上の利用分野】本願発明は、人の睡眠時における
無呼吸状態を判定する無呼吸状態判定装置に関するもの
である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apnea state determining apparatus for determining an apnea state of a person during sleep.
【０００２】[0002]
【従来の技術】睡眠中に一時的に呼吸が停止する睡眠時
無呼吸症がある。2. Description of the Related Art There is sleep apnea in which breathing is temporarily stopped during sleep.
【０００３】従来、このような睡眠時における無呼吸状
態の判定は、例えば心臓の心拍数の変化や呼吸音、いび
き音などを測定することによって行うようにしていた。Conventionally, the determination of the apnea state during sleep has been performed by measuring, for example, changes in the heart rate of the heart, breath sounds, and snoring sounds.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上記心拍数の
測定方法は、複数の電極を胸部に取付けて行うために、
心理的に十分な入眠を不可能にする恐れがあり、必ずし
も正確な判定を下すことができない問題がある。However, in the above-mentioned method of measuring the heart rate, since a plurality of electrodes are attached to the chest,
There is a problem that psychologically sufficient sleep cannot be made, and an accurate judgment cannot always be made.
【０００５】また、呼吸音やいびき音の測定による方法
は、明瞭な呼吸音やいびき音を伴わない人に対して適用
できない問題がある。Further, the method of measuring breathing sounds and snoring sounds has a problem that it cannot be applied to a person who does not have clear breathing sounds or snoring sounds.
【０００６】[0006]
【課題を解決するための手段】本願の請求項１および２
記載の発明は、各々上記の問題を解決することを目的と
してなされたものであって、それぞれ次のように構成さ
れている。Claims 1 and 2 of the present application
The inventions described above were made for the purpose of solving the above problems, and are configured as follows.
【０００７】(１) 請求項１記載の発明の構成 請求項１記載の発明は、人体の腹部に対して取付けられ
る伸縮自在な腹巻き部と、この腹巻き部に設けられ当該
腹巻き部の伸縮に応じて抵抗値が変化する可変抵抗器
と、この可変抵抗器に電流を流す電源供給手段と、上記
可変抵抗器の抵抗値の変化に応じた上記可変抵抗器を流
れる電流値の変化を検出する電流検出手段と、この電流
検出手段によって検出された電流値の変化から睡眠時の
無呼吸状態を判定する無呼吸状態判定手段とを備えて構
成されている。(1) Structure of the Invention According to Claim 1 The invention according to claim 1 is a stretchable belly-wrap portion which is attached to the abdomen of a human body and a stretchable belly-wrap portion provided on the belly-wrap portion. A variable resistor whose resistance value changes, a power supply means for supplying a current to the variable resistor, and a current for detecting a change in the current value flowing through the variable resistor according to a change in the resistance value of the variable resistor. The detection means and the apnea state determination means for determining the apnea state during sleep from the change in the current value detected by the current detection means are configured.
【０００８】(２) 請求項２記載の発明の構成 請求項２記載の発明は、人体の腹部に対して取付けられ
る伸縮自在な腹巻き部と、この腹巻き部に設けられ当該
腹巻き部の伸縮に応じて歪み応力が変化する歪み計と、
この歪み計の歪み応力の変化を電流値の変化に変える歪
み−電流変換手段と、上記歪み計の歪み応力の変化に応
じた上記歪み−電流変換手段の出力電流値の変化を検出
する電流検出手段と、この電流検出手段によって検出さ
れた電流値の変化から睡眠時の無呼吸状態を判定する無
呼吸状態判定手段とを備えて構成されている。(2) Structure of the Invention According to Claim 2 The invention according to claim 2 is a stretchable belly-wrap portion attached to the abdomen of a human body, and a stretchable belly-wrap portion provided on the belly-wrap portion according to expansion and contraction of the belly-wrap portion. Strain gauge that changes strain stress by
Strain-current converting means for changing the change of the strain stress of the strain gauge into change of the current value, and current detection for detecting the change of the output current value of the strain-current converting means according to the change of the strain stress of the strain meter. And an apnea state determining means for determining the apnea state during sleep from the change in the current value detected by the current detecting means.
【０００９】[0009]
(１) 請求項１記載の発明の作用 本願の請求項１記載の発明の睡眠時の無呼吸状態判定装
置の構成では、上述のように、人体の腹部に対して取付
けられる伸縮自在な腹巻き部と、この腹巻き部に設けら
れ当該腹巻き部の伸縮に応じて抵抗値が変化する可変抵
抗器と、この可変抵抗器に電流を流す電源供給手段と、
上記可変抵抗器の抵抗値の変化に応じた上記可変抵抗器
を流れる電流値の変化を検出する電流検出手段と、この
電流検出手段によって検出された電流値の変化から睡眠
時の無呼吸状態を判定する無呼吸状態判定手段とが設け
られている。(1) Operation of the invention according to claim 1 In the configuration of the apnea determining device during sleep according to the invention according to claim 1 of the present application, as described above, the stretchable belly-wrap portion attached to the abdomen of the human body. A variable resistor provided in the belly coil portion, the resistance value of which changes according to expansion and contraction of the belly coil portion, and a power supply means for supplying a current to the variable resistor,
Current detection means for detecting a change in the current value flowing through the variable resistor according to the change in the resistance value of the variable resistor, and an apnea state during sleep from the change in the current value detected by the current detection means. An apnea state determining means for determining is provided.
【００１０】したがって、睡眠中の人が呼吸をすると、
上記腹巻き部が伸縮して上記可変抵抗器の抵抗値が変化
し、それに応じて流れる電流の値も変わる。Therefore, when a sleeping person breathes,
The belly coil expands and contracts to change the resistance value of the variable resistor, and the value of the current flowing accordingly changes.
【００１１】通常、人の睡眠中の呼吸は腹式呼吸とな
る。腹式呼吸では吸気時に吸気によって肺が膨張し、横
隔膜が下降する。そして、それに伴って腹部が上方に膨
張する。一方、呼気時には、呼気によって肺が収縮し、
それに伴って、横隔膜が上昇して、腹部が下方に収縮す
る。このような一連の運動により、睡眠中は規則正しい
腹部の上下運動が行われる。しかし、無呼吸状態では呼
吸停止と同時に、腹部の上下運動も停止する。Normally, the breathing during sleep of a person is abdominal breathing. In abdominal breathing, the lungs expand due to inspiration during inspiration, and the diaphragm descends. Then, along with that, the abdomen expands upward. On the other hand, during exhalation, the lungs contract due to exhalation,
As a result, the diaphragm rises and the abdomen contracts downward. Through such a series of exercises, the abdominal movements of the abdomen are regularly performed during sleep. However, in the apnea state, the vertical movement of the abdomen also stops at the same time as breathing stops.
【００１２】規則的な呼吸が行われていると、上記電流
検出部で検出される電流変化はほぼ一定の周期と振幅に
なる。一方、呼吸が停止すると、電流変化がなくなる。
そして、呼吸が再開すると、電流値は一旦大きくなる。
そして、周期は短く、振幅は大きくなる。そして、その
後、再び電流変化は小さくなり、周期と振幅は元の状態
になる。したがって、これにより無呼吸時間、無呼吸周
期、無呼吸回数および正常な呼吸回数等を測定すること
ができる。さらに、また呼吸量も推算可能となる。When regular breathing is performed, the change in current detected by the current detector has a substantially constant cycle and amplitude. On the other hand, when the breathing stops, the current change disappears.
Then, when breathing resumes, the current value once increases.
Then, the cycle is short and the amplitude is large. Then, after that, the current change becomes small again, and the cycle and the amplitude return to the original state. Therefore, the apnea time, the apnea cycle, the number of times of apnea, the number of normal breaths, etc. can be measured by this. Furthermore, the respiratory volume can be estimated again.
【００１３】(２) 請求項２記載の発明の作用 本願の請求項２記載の発明の睡眠時の無呼吸状態判定装
置の構成では、上述のように人体の腹部に対して取付け
られる伸縮自在な腹巻き部と、この腹巻き部に設けられ
当該腹巻き部の伸縮に応じて歪み応力が変化する歪み計
と、この歪み計の歪み応力の変化を電流値の変化に変え
る歪み−電流変換手段と、上記歪み計の歪み応力の変化
に応じた上記歪み−電流変換手段の出力電流値の変化を
検出する電流検出手段と、この電流検出手段によって検
出された電流値の変化から睡眠時の無呼吸状態を判定す
る無呼吸状態判定手段とが設けられている。(2) Operation of the invention according to claim 2 In the configuration of the apnea state determining device during sleep according to the invention according to claim 2 of the present application, as described above, the retractable device is attached to the abdomen of the human body. A belly coil portion, a strain gauge provided in the belly coil portion, the strain stress of which changes in accordance with the expansion and contraction of the belly coil portion, a strain-current conversion means for changing the strain stress of the strain meter into a change of a current value, and A current detecting means for detecting a change in the output current value of the strain-current converting means according to a change in the strain stress of the strain gauge, and an apnea state during sleep from the change in the current value detected by the current detecting means. An apnea state determining means for determining is provided.
【００１４】したがって、睡眠中の人が呼吸をすると、
上記腹巻き部が伸縮して上記歪み計の歪み応力が変化
し、それに応じて歪み計の出力電圧を電圧−電流変換し
た電流値も変わる。Therefore, when a sleeping person breathes,
The belly coil expands and contracts to change the strain stress of the strain gauge, and the current value obtained by voltage-current converting the output voltage of the strain gauge also changes accordingly.
【００１５】上述の如く、通常、人の睡眠中の呼吸は腹
式呼吸となる。腹式呼吸では吸気時に吸気によって肺が
膨張し、横隔膜が下降する。そして、それに伴って腹部
が上方に膨張する。一方、呼気時には、呼気によって肺
が収縮し、それに伴って、横隔膜が上昇して、腹部が下
方に収縮する。このような一連の運動により、睡眠中は
規則正しい腹部の上下運動が行われる。しかし、無呼吸
状態では呼吸停止と同時に、腹部の上下運動も停止す
る。As described above, breathing during sleep of a person is usually abdominal breathing. In abdominal breathing, the lungs expand due to inspiration during inspiration, and the diaphragm descends. Then, along with that, the abdomen expands upward. On the other hand, at the time of exhalation, the lungs are contracted by the exhalation, the diaphragm is raised accordingly, and the abdomen is contracted downward. Through such a series of exercises, the abdominal movements of the abdomen are regularly performed during sleep. However, in the apnea state, the vertical movement of the abdomen also stops at the same time as breathing stops.
【００１６】規則的な呼吸が行われていると、上記検出
される電流の変化はほぼ一定の周期と振幅になる。とこ
ろが呼吸が停止すると、電流変化がなくなる。そして、
呼吸が再開すると、上記電流値は一旦大きくなる。そし
て、周期は短く、振幅は大きくなる。その後、再び電流
変化は小さくなり、周期と振幅は元の状態になる。従っ
て、これにより無呼吸時間、無呼吸周期、無呼吸回数お
よび正常な呼吸回数等を測定することができる。さら
に、また呼吸量も推算可能となる。When regular breathing is performed, the change in the detected current has a substantially constant cycle and amplitude. However, when breathing stops, the current change disappears. And
When breathing resumes, the current value once increases. Then, the cycle is short and the amplitude is large. After that, the change in current becomes small again, and the cycle and amplitude return to the original state. Therefore, the apnea time, the apnea cycle, the apnea frequency, and the normal respiratory frequency can be measured by this. Furthermore, the respiratory volume can be estimated again.
【００１７】[0017]
【発明の効果】以上の結果、本願発明の睡眠時の無呼吸
状態判定装置によると、直接膚に触れないため、装着感
がなく、入眠に影響を与えない。そのため、十分な睡眠
状態が確保され、判定の信頼性が向上する。また、睡眠
中の体動に対しても、測定誤差が小さい。また、抵抗値
又は歪み値の変化により、比較的簡単に無呼吸時間、無
呼吸周期、無呼吸回数および正常な呼吸回数が算出で
き、さらに、呼吸１回当たりの呼吸量の推算ができるの
で、性能の割にコストも安い。As described above, according to the apparatus for determining apnea of sleep according to the present invention, since it does not directly touch the skin, there is no feeling of wearing and there is no effect on falling asleep. Therefore, a sufficient sleep state is secured and the reliability of determination is improved. In addition, the measurement error is small for body movements during sleep. Also, by changing the resistance value or strain value, the apnea time, apnea cycle, apnea frequency and normal respiratory frequency can be calculated relatively easily, and furthermore, the respiratory volume per respiratory can be estimated, Cost is low for performance.
【００１８】[0018]
(１) 第１実施例 図１および図２は、本願発明の第１実施例に係る睡眠時
の無呼吸状態判定装置の構成および作用を示している。(1) First Embodiment FIGS. 1 and 2 show the configuration and operation of an apnea episode determining apparatus during sleep according to a first embodiment of the present invention.
【００１９】先ず、図１は同装置の構成を示すもので、
符号１は人体、２はその腹部を示している。First, FIG. 1 shows the structure of the apparatus.
Reference numeral 1 indicates a human body, and 2 indicates the abdomen.
【００２０】そして、上記腹部２には内部に可変抵抗器
４を組込んだ腹巻３が取り外し可能に巻かれている。該
腹巻３は、例えばゴム等の弾性部材を使用して伸縮自在
に構成されており、上記可変抵抗器４は該腹巻３の伸縮
に応じて、その抵抗値Ｒが可変ならしめられるようにな
っている。An abdomen 3 having a variable resistor 4 incorporated therein is detachably wound around the abdomen 2. The belly band 3 is configured to be expandable and contractible by using an elastic member such as rubber, and the variable resistor 4 can change its resistance value R according to the expansion and contraction of the belly band 3. ing.
【００２１】また、符号５は上記可変抵抗器４に対して
常時一定の電圧を印加する定電圧電源であり、該定電圧
電源５により上記可変抵抗器４には、その時の抵抗値Ｒ
に応じた大きさの電流が流されるようになっている。Reference numeral 5 is a constant voltage power source for constantly applying a constant voltage to the variable resistor 4, and the variable voltage source 5 causes the variable resistor 4 to have a resistance value R at that time.
An electric current of a magnitude corresponding to is supplied.
【００２２】一方、符号６は電流検出部であり、該電流
検出部６は上記可変抵抗器４を流れる電流値を連続的に
検出し、ディスプレイ部８に例えば図２に示すように経
時的な変化が分かる形で表示する。On the other hand, reference numeral 6 is a current detecting section, which continuously detects the value of the current flowing through the variable resistor 4 and displays it on the display section 8 over time as shown in FIG. Display in a form that shows changes.
【００２３】通常、人の睡眠中の呼吸は腹式呼吸とな
る。腹式呼吸では、吸気時に吸気によって肺が膨張し、
人体下方側足部方向(矢印ハ方向)に押し下げられて横隔
膜が下降する。そして、それに伴って腹部２が上方(矢
印ロ方向)に膨張する。一方、呼気時には、呼気によっ
て肺が収縮し、人体上方側頭部方向(矢印イ方向)に押し
上げられる。その結果、横隔膜が上昇して、腹部２が下
方(矢印ニ方向)に収縮する。このような一連の運動によ
り、睡眠中は本来規則正しい腹部２の上下運動が行われ
る。Usually, the breathing during sleep of a person is abdominal breathing. In abdominal breathing, the lungs expand due to inspiration during inspiration,
The diaphragm is pushed down by being pushed down in the direction of the lower leg of the human body (direction of arrow C). Then, along with that, the abdomen 2 expands upward (in the direction of arrow B). On the other hand, at the time of exhalation, the lungs are contracted by the exhalation and pushed up in the upper temporal region of the human body (arrow A direction). As a result, the diaphragm rises and the abdomen 2 contracts downward (direction of arrow D). With such a series of exercises, the abdominal movement of the abdomen 2 that is originally regular is performed during sleep.
【００２４】したがって、この腹部２の上下運動に応じ
て上記腹巻３が伸縮し、それに対応して上記可変抵抗器
４も摺動して抵抗値Ｒが大小変化する。Therefore, the belly band 3 expands and contracts in accordance with the vertical movement of the abdomen 2, and the variable resistor 4 also slides correspondingly to change the resistance value R.
【００２５】その結果、当該可変抵抗器４を流れる電流
の値Ｉは、それと逆の関係で大小変化することになり、
それが上記電流検出部６で検出され、無呼吸状態判定部
７を形成するディスプレイ部８に例えば図２のようにサ
インカーブ状に表示される。As a result, the value I of the current flowing through the variable resistor 4 changes in magnitude in the opposite relationship.
This is detected by the current detection unit 6 and displayed in a sine curve shape on the display unit 8 forming the apnea condition determination unit 7 as shown in FIG. 2, for example.
【００２６】しかし、無呼吸状態では呼吸停止と同時
に、腹部２の上下運動も停止する。そして、通常、無呼
吸状態は呼気終了後に開始される。したがって、該無呼
吸状態では血液中の酸素濃度が減少し、二酸化炭素濃度
が増加する。無呼吸時間は図２に示すように２０〜６０
秒程度で、再び、呼吸を再開する。そして、呼吸開始直
後は酸素不足により、激しい呼吸により、腹部も激しい
上下運動をする。However, in the apnea state, the vertical movement of the abdomen 2 is stopped at the same time as the breathing is stopped. Then, the apnea state is usually started after the expiration. Therefore, in the apnea state, the oxygen concentration in blood decreases and the carbon dioxide concentration increases. Apnea time is 20-60 as shown in FIG.
In about a second, breathing is resumed again. Immediately after the start of breathing, due to lack of oxygen, the abdomen also moves up and down violently due to vigorous breathing.
【００２７】すなわち、規則的な呼吸が行われている
と、上記電流検出部６で検出される電流の変化はほぼ一
定の周期と振幅になる。ところが、呼吸が停止すると、
図２に示すようにその電流変化がなくなる。やがて呼吸
が再開すると、上記電流値は一旦大きくなる。そして、
周期は短く、振幅は大きくなる。その後、再び電流変化
は小さくなり、周期と振幅は図示の如く元の状態にな
る。That is, when regular breathing is performed, the change in the current detected by the current detector 6 has a substantially constant cycle and amplitude. However, when breathing stops,
As shown in FIG. 2, the current change disappears. When the breathing is resumed, the current value increases once. And
The period is short and the amplitude is large. After that, the change in current becomes small again, and the cycle and amplitude return to the original state as shown in the figure.
【００２８】したがって、これにより無呼吸時間、無呼
吸周期、無呼吸回数および正常な呼吸回数などを測定す
ることができる。さらに、呼吸量も推算可能となり、無
呼吸状態を高精度に判定し得るようになる。Therefore, the apnea time, the apnea cycle, the apnea frequency and the normal respiratory frequency can be measured by this. Furthermore, the respiratory volume can be estimated, and the apnea state can be determined with high accuracy.
【００２９】(２) 第２実施例 図３および図４は、本願発明の第２実施例に係る睡眠時
の無呼吸状態判定装置の構成および作用を示している。(2) Second Embodiment FIGS. 3 and 4 show the structure and operation of an apnea condition determining apparatus during sleep according to a second embodiment of the present invention.
【００３０】先ず、図３は同装置の構成を示すもので、
第１実施例同様符号１は人体、２はその腹部を示してい
る。First, FIG. 3 shows the structure of the apparatus.
Similar to the first embodiment, reference numeral 1 indicates a human body and 2 indicates the abdomen.
【００３１】そして、上記腹部２には内部に歪み計１１
を組込んだ腹巻３が取り外し可能に巻かれている。該腹
巻３は、例えばゴム等の弾性部材を使用して伸縮自在に
構成されており、上記歪み計１１は該腹巻３の伸縮に対
応した歪み応力の変化に応じて、その出力電圧が可変な
らしめられるようになっている。A strain gauge 11 is provided inside the abdomen 2.
The belly band 3 incorporating is wound so as to be removable. The belly band 3 is configured to be expandable / contractible by using an elastic member such as rubber, and the strain gauge 11 has a variable output voltage according to a change in strain stress corresponding to the expansion / contraction of the belly band 3. It is designed to be tightened.
【００３２】また、符号５は上記歪み計１１に対して常
時一定の作動電源を印加する定電圧電源であり、該定電
圧電源５により上記歪み計１１は、その時の歪み応力に
応じた大きさの電圧Ｖを出力するようになっている。Reference numeral 5 denotes a constant voltage power source for constantly applying a constant operating power source to the strain gauge 11. The constant voltage power source 5 causes the strain gauge 11 to have a magnitude corresponding to the strain stress at that time. Is output.
【００３３】一方、符号１２は電圧−電流変換部であ
り、該電圧−電流変換部１２は上記歪み計１１の出力電
圧Ｖを電流値Ｉに連続的に変換し、ディスプレイ部８に
例えば図４に示すように経時的な変化が分かる形で表示
する。On the other hand, reference numeral 12 is a voltage-current conversion section, which continuously converts the output voltage V of the strain gauge 11 into a current value I and displays it on the display section 8 as shown in FIG. As shown in, it is displayed in such a manner that changes over time can be understood.
【００３４】第１実施例について述べたように、通常、
人の睡眠中の呼吸は腹式呼吸となる。腹式呼吸では、吸
気時に吸気によって肺が膨張し、人体下方側足部方向に
押し下げられて横隔膜が下降する。そして、それに伴っ
て腹部２が上方に膨張する。一方、呼気時には、呼気に
よって肺が収縮し、人体上方側頭部方向に押し上げられ
る。その結果、横隔膜が上昇して、腹部２が下方に収縮
する。このような一連の運動により、睡眠中は本来規則
正しい腹部２の上下運動が行われる。As mentioned in the first embodiment,
Breathing during sleep of a person becomes abdominal breathing. In abdominal breathing, the lungs are inflated by inspiration at the time of inspiration, and are pushed down toward the lower part of the human body to lower the diaphragm. Then, along with that, the abdomen 2 expands upward. On the other hand, during exhalation, the lungs are contracted by the exhalation and pushed up toward the upper temporal region of the human body. As a result, the diaphragm rises and the abdomen 2 contracts downward. With such a series of exercises, the abdominal movement of the abdomen 2 that is originally regular is performed during sleep.
【００３５】したがって、この腹部２の上下運動に応じ
て上記腹巻３が伸縮し、それに対応して上記歪み計１１
も応力変位する。Therefore, the belly band 3 expands and contracts according to the vertical movement of the abdomen 2, and the strain gauge 11 correspondingly expands and contracts.
Also undergoes stress displacement.
【００３６】その結果、当該歪み計１１は、それに対応
した電圧レベルの出力を発生することになり、その電圧
値Ｖが上記電圧−電流変換部１２で電流値Ｉに変換さ
れ、無呼吸状態判定部７のディスプレイ部８に例えば図
４のようにサインカーブ状に表示される。As a result, the strain gauge 11 produces an output of a voltage level corresponding to the output, and the voltage value V thereof is converted into a current value I by the voltage-current conversion section 12 to determine the apnea condition. The sine curve is displayed on the display unit 8 of the unit 7 as shown in FIG. 4, for example.
【００３７】無呼吸状態では呼吸停止と同時に、腹部２
の上下運動も停止する。無呼吸状態は呼気終了後に開始
される。したがって、無呼吸状態では血液中の酸素濃度
が減少し、二酸化炭素濃度が増加する。無呼吸時間は２
０〜６０秒程度で、再び、呼吸を再開する。そして、呼
吸開始直後は酸素不足により、激しい呼吸により、腹部
も激しい上下運動をする。In the apnea state, at the same time as breathing is stopped, the abdomen 2
The up and down movement of is also stopped. Apnea starts after expiration. Therefore, in the apnea state, the oxygen concentration in blood decreases and the carbon dioxide concentration increases. Apnea time is 2
In about 0 to 60 seconds, breathing is restarted again. Immediately after the start of breathing, due to lack of oxygen, the abdomen also moves up and down violently due to vigorous breathing.
【００３８】すなわち、規則的な呼吸が行われている
と、上記検出される電流変化は図４に示すようにほぼ一
定の周期と振幅になる。一方、呼吸が停止すると、同電
流変化がなくなる。そして呼吸が再開すると、電流値は
一旦大きくなる。そして、周期は短く、振幅は大きくな
る。その後、電流変化は小さくなり、周期と振幅は元の
状態になる。That is, when regular breathing is performed, the detected current change has a substantially constant cycle and amplitude as shown in FIG. On the other hand, when breathing stops, the same current change disappears. Then, when breathing resumes, the current value once increases. Then, the cycle is short and the amplitude is large. After that, the current change becomes small, and the cycle and amplitude return to the original state.
【００３９】したがって、これにより無呼吸時間、無呼
吸周期、無呼吸回数および正常な呼吸回数などを測定す
ることができる。さらに、呼吸量も推算可能となるの
で、高精度な無呼吸状態が可能となる。Therefore, the apnea time, the apnea cycle, the apnea frequency and the normal respiratory frequency can be measured by this. Furthermore, since the respiratory volume can be estimated, a highly accurate apnea state is possible.
【図１】図１は、本願発明の第１実施例に係る睡眠時の
無呼吸状態判定装置の判定システム図である。FIG. 1 is a determination system diagram of an apnea determination device during sleep according to a first embodiment of the present invention.
【図２】図２は、同装置の検出電流の波形図である。FIG. 2 is a waveform diagram of a detection current of the device.
【図３】図３は、本願発明の第２実施例に係る睡眠時の
無呼吸状態判定装置のシステム図である。FIG. 3 is a system diagram of a sleep apnea determination device according to a second embodiment of the present invention.
【図４】図４は、同装置の検出電流の波形図である。FIG. 4 is a waveform diagram of a detection current of the device.
１は人体、２は腹部、３は腹巻、４は可変抵抗器、５は
定電圧電源、６は電流検出部、７は無呼吸状態判定部、
８はディスプレイ部、１１は歪み計、１２は電圧−電流
変換部である。1 is a human body, 2 is an abdomen, 3 is an abdomen, 4 is a variable resistor, 5 is a constant voltage power supply, 6 is a current detection unit, 7 is an apnea state determination unit,
Reference numeral 8 is a display unit, 11 is a strain gauge, and 12 is a voltage-current conversion unit.
Claims (2)
在な腹巻き部と、この腹巻き部に設けられ当該腹巻き部
の伸縮に応じて抵抗値が変化する可変抵抗器と、この可
変抵抗器に電流を流す電源供給手段と、上記可変抵抗器
の抵抗値の変化に応じた上記可変抵抗器を流れる電流値
の変化を検出する電流検出手段と、この電流検出手段に
よって検出された電流値の変化から睡眠時の無呼吸状態
を判定する無呼吸状態判定手段とを備えてなる睡眠時の
無呼吸状態判定装置。1. An expandable and contractible belly coil attached to the abdomen of a human body, a variable resistor which is provided on the belly coil and whose resistance value changes according to expansion and contraction of the belly coil, and a current flowing through the variable resistor. From the change in the current value detected by the current detecting means and the current detecting means for detecting the change in the current value flowing through the variable resistor according to the change in the resistance value of the variable resistor. An apnea state determining device during sleep, comprising an apnea state determining means for determining an apnea state during sleep.
在な腹巻き部と、この腹巻き部に設けられ当該腹巻き部
の伸縮に応じて歪み応力が変化する歪み計と、この歪み
計の歪み応力の変化を電流値の変化に変える歪み−電流
変換手段と、上記歪み計の歪み応力の変化に応じた上記
歪み−電流変換手段の出力電流値の変化を検出する電流
検出手段と、この電流検出手段によって検出された電流
値の変化から睡眠時の無呼吸状態を判定する無呼吸状態
判定手段とを備えてなる睡眠時の無呼吸状態判定装置。2. A stretchable belly-winding part attached to the abdomen of a human body, a strain gauge provided on the belly-wrapping part, the strain stress of which changes according to the expansion and contraction of the belly-wrapping part, and the strain stress of the strain gauge. Strain-current converting means for changing the change into a change in current value, current detecting means for detecting a change in output current value of the strain-current converting means in response to a change in strain stress of the strain gauge, and the current detecting means. An apnea state determining device for determining an apnea state during sleep from a change in current value detected by the apnea state determining device during sleep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4221631A JP2718330B2 (en) | 1992-08-20 | 1992-08-20 | Sleep apnea determination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4221631A JP2718330B2 (en) | 1992-08-20 | 1992-08-20 | Sleep apnea determination device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0663031A true JPH0663031A (en) | 1994-03-08 |
| JP2718330B2 JP2718330B2 (en) | 1998-02-25 |
Family
ID=16769798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4221631A Expired - Fee Related JP2718330B2 (en) | 1992-08-20 | 1992-08-20 | Sleep apnea determination device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2718330B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002069801A1 (en) * | 2001-03-02 | 2002-09-12 | Opher Pail | Apparatus and methods for indicating respiratory phases to improve speech/breathing synchronization |
| JP2003250779A (en) * | 2001-12-28 | 2003-09-09 | Ryuzo Okazaki | Abdominal breathing gauge |
| WO2005089645A1 (en) * | 2004-03-24 | 2005-09-29 | Dainippon Sumitomo Pharma Co., Ltd. | Biological information measuring garment having sensor, biological information measuring system and equipment, and control method of equipment |
| JP2006212329A (en) * | 2005-02-07 | 2006-08-17 | Ngk Spark Plug Co Ltd | Thorax motion detection sensor and biological condition monitoring device |
| US9414785B2 (en) | 2004-03-24 | 2016-08-16 | Nihon Kohden Corporation | Garment for bioinformation measurement having electrode, bioinformation measurement system and bioinformation measurement device, and device control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2944958B1 (en) | 2009-04-30 | 2011-07-08 | Oreal | WAX-IN-WATER EMULSION COMPRISING THE ASSOCIATION OF A GLUTAMIC ACID DERIVATIVE AND ALKYLPOLYGLYCOSIDE |
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1992
- 1992-08-20 JP JP4221631A patent/JP2718330B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002069801A1 (en) * | 2001-03-02 | 2002-09-12 | Opher Pail | Apparatus and methods for indicating respiratory phases to improve speech/breathing synchronization |
| US6561987B2 (en) * | 2001-03-02 | 2003-05-13 | Opher Pail | Apparatus and methods for indicating respiratory phases to improve speech/breathing synchronization |
| JP2003250779A (en) * | 2001-12-28 | 2003-09-09 | Ryuzo Okazaki | Abdominal breathing gauge |
| WO2005089645A1 (en) * | 2004-03-24 | 2005-09-29 | Dainippon Sumitomo Pharma Co., Ltd. | Biological information measuring garment having sensor, biological information measuring system and equipment, and control method of equipment |
| US8668653B2 (en) | 2004-03-24 | 2014-03-11 | Nihon Kohden Corporation | Biological information measuring garment having sensor, biological information measuring system and equipment, and control method of equipment |
| US9414785B2 (en) | 2004-03-24 | 2016-08-16 | Nihon Kohden Corporation | Garment for bioinformation measurement having electrode, bioinformation measurement system and bioinformation measurement device, and device control method |
| US9433379B2 (en) | 2004-03-24 | 2016-09-06 | Nihon Kohden Corporation | Garment for bioinformation measurement having electrode, bioinformation measurement system and bioinformation measurement device, and device control method |
| JP2006212329A (en) * | 2005-02-07 | 2006-08-17 | Ngk Spark Plug Co Ltd | Thorax motion detection sensor and biological condition monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2718330B2 (en) | 1998-02-25 |
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