JPS63143082A - Respiration tuning type oxygen feeder - Google Patents
Respiration tuning type oxygen feederInfo
- Publication number
- JPS63143082A JPS63143082A JP29039486A JP29039486A JPS63143082A JP S63143082 A JPS63143082 A JP S63143082A JP 29039486 A JP29039486 A JP 29039486A JP 29039486 A JP29039486 A JP 29039486A JP S63143082 A JPS63143082 A JP S63143082A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- oxygen
- nasal cannula
- breathing
- gas
- 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.)
- Pending
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 25
- 239000001301 oxygen Substances 0.000 title claims description 25
- 229910052760 oxygen Inorganic materials 0.000 title claims description 25
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims description 20
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 20
- 229910001882 dioxygen Inorganic materials 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 15
- 230000000241 respiratory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000014085 Chronic respiratory disease Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003928 nasal cavity Anatomy 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 206010002091 Anaesthesia Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 230000037005 anaesthesia Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 210000001331 nose Anatomy 0.000 description 1
Landscapes
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、慢性呼吸疾患患者に酸素ガスを供給するため
に用いられる開放型呼吸システムに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an open breathing system used to supply oxygen gas to patients with chronic respiratory diseases.
酸素などのガスを患者に吸入させる方法には、大別して
密閉型と開放型がある。密閉型は、麻酔等にも用いられ
る方式で酸素ガスの供給回路は外気より遮断されており
、この回路内圧の変化によって呼吸同調を行うことは容
易であり既に行われている。一方、開放型は、慢性呼吸
疾患患者が長期間にわたって酸素導出口を鼻腔または口
腔内に装着して吸入するもので、通常は呼吸動作とは無
関係に連続的に酸素ガスが供給される。従って、息を吐
いている時にも酸素ガスが送気されるため、患者が呼吸
抵抗感を怒したり、呼気時には酸素ガスが利用されず無
駄となっていた。Methods for inhaling gas such as oxygen into a patient can be roughly divided into closed types and open types. The closed type is a system that is also used for anesthesia, etc., and the oxygen gas supply circuit is cut off from the outside air, and it is easy to synchronize breathing by changing the internal pressure of this circuit, and this has already been done. On the other hand, the open type is inhaled by patients with chronic respiratory diseases by wearing the oxygen outlet in their nasal cavity or oral cavity for a long period of time, and oxygen gas is normally supplied continuously regardless of breathing movements. Therefore, since oxygen gas is delivered even when exhaling, the patient may experience respiratory resistance, and the oxygen gas is not utilized during exhalation and is wasted.
これらの問題を解決するため、゛木発明者らは先に、呼
吸に合わせて酸素等のガスが供給できる制？１） Ｊａ
能を偵えた呼吸同調式ガス供給装置を開発し、特願昭６
１−１）３７２３号に開示した。この装置は第３図に示
したように、鼻カニユーレ４に設置された呼吸センサー
８により呼気、吸気のタイミングを検出し、その信号に
よってガス供給装置の本体１内の配管系に設けられた弁
７の開閉を行い、ガスの供給を制御するものである。In order to solve these problems, the inventors first developed a system that could supply gases such as oxygen in time with breathing. 1) Ja
Developed a breathing-synchronized gas supply device that achieved the Noh performance, and received a special patent application in 1983.
1-1) disclosed in No. 3723. As shown in Fig. 3, this device detects the timing of exhalation and inhalation using a breathing sensor 8 installed in the nasal cannula 4, and the signals are used to control the valves installed in the piping system in the main body 1 of the gas supply device. 7 to control gas supply.
酸素ガスを患者へ供給する鼻カニユーレ４は、通常軟質
樹脂チューブからなり、その内部を酸素ガスが流れ、長
さは１〜１５ｍの範囲で使われることが多い、鼻カニユ
ーレ４は一端を装置本体ｌの酸素供給口３へ接続し、他
端を酸素導出口５として２つの鼻孔へ挿入する。The nasal cannula 4 that supplies oxygen gas to the patient is usually made of a soft resin tube, through which oxygen gas flows, and is often used with a length of 1 to 15 m.The nasal cannula 4 has one end connected to the main body of the device. The other end is inserted into the two nostrils with the other end serving as the oxygen outlet 5.
しかしながら、この方式では弁７が装置本体ｌ内にある
ため、弁７と酸素導出口５との間に本体１の内部配管や
鼻カニユーレ４等が介在し、それらの内部空間が無視で
きなくなってバッファ効果を引越こし、この結果弁７の
動作に対して患者側、即ち酸素導出口５への酸素ガスの
供給に時間的な遅れを生じる欠点があった。また、呼気
時酸素ガス供給停止中において、鼻カニユーレ内の酸素
ガスに対し患者の鼻からの呼気ガスが混合し、供給ガス
の酸素濃度が低下する。上記のような状態が長時間続（
と、患者の不快感を引き起こし、更には治療上の効果も
低減するなどの問題が生じていた。However, in this method, since the valve 7 is located inside the device main body l, the internal piping of the main body 1, the nasal cannula 4, etc. are interposed between the valve 7 and the oxygen outlet 5, and the internal space of these cannot be ignored. This has the drawback of causing a buffer effect, resulting in a time delay in supplying oxygen gas to the patient side, ie, to the oxygen outlet 5, relative to the operation of the valve 7. Further, while the oxygen gas supply is stopped during exhalation, exhaled gas from the patient's nose mixes with the oxygen gas in the nasal cannula, and the oxygen concentration of the supplied gas decreases. If the above condition continues for a long time (
This has caused problems such as causing patient discomfort and further reducing the therapeutic effect.
本発明は、従来問題となっていた酸素ガス供給の呼吸に
対する応答性の遅れ及び鼻カニユーレ内の供給ガス組成
の変動を改善すべく検討を行った結果、酸素ガス供給制
御用弁の位置を患者側へ移動することにより、応答性が
向上し供給ガス組成も安定することを見出し、更にこの
知見に基づき種々研究を進めて本発明を完成するに至っ
たものである。その目的とするところは特に大巾な装置
の改造を必要とせず、実際の呼吸に対し酸素ガス供給の
同調遅れがない適正な酸素濃度ガスの供給を可能とする
呼吸同調式酸素供給装置を提供することにある。The present invention was developed in order to improve the conventional problems of the delayed response of oxygen gas supply to breathing and fluctuations in the gas composition within the nasal cannula. It was discovered that by moving the gas to the side, the responsiveness was improved and the composition of the supplied gas was stabilized.Based on this knowledge, various studies were conducted and the present invention was completed. The purpose is to provide a breathing-synchronized oxygen supply device that does not require any major modifications to the device and can supply gas with an appropriate oxygen concentration without synchronization delay in oxygen gas supply relative to actual breathing. It's about doing.
皿ち本発明は、鼻カニユーレ部において少くとも１箇の
弁を有し、呼吸センサーからの呼吸信号により咳弁の開
閉を行い、酸素ガスの供給を制御することを特徴とする
呼吸同調式酸素供給装置である。The present invention provides a respiratory-synchronized oxygen system characterized by having at least one valve in the nasal cannula, and controlling the supply of oxygen gas by opening and closing the cough valve in response to a respiratory signal from a respiratory sensor. It is a supply device.
第１図は、本発明の１実施例となる呼吸同調式酸素供給
装置のブロック図である。FIG. 1 is a block diagram of a breathing synchronized oxygen supply device according to an embodiment of the present invention.
この例では、鼻カニュー、し４の患者への装着性を向上
させるため、先端部において二股に分岐させており、こ
のため１箇の弁６を分岐部手前に設置している。鼻カニ
ユーレ４の分岐したチューブの患者側、すなわち酸素導
出口５の両側に２箇の弁を設置することも可能である。In this example, in order to improve the ease of attaching the nasal cannula 4 to the patient, the nasal cannula 4 is bifurcated at the distal end, and one valve 6 is therefore installed in front of the bifurcation. It is also possible to install two valves on the patient side of the branched tube of the nasal cannula 4, that is, on both sides of the oxygen outlet 5.
また、鼻カニューレが二股に分岐しない単管の場合には
当然のことながら、酸素導出口５近傍へ１箇設置すれば
良い、弁６の位置は、患者側すなわち酸素導出口５に近
ければ近い程呼吸に対する応答性は高まり、ガス組成の
変動防止に効果的であるが、弁６の開閉の際発生する騒
音等の不具合より若干装置側へ移動するのが好ましい、
しかし、弁６の位置が酸素導出口５より離れるに伴い本
発明の効果は低減し、従って、弁の位置は酸素導出口よ
り２ｍ以内が望ましい。Also, if the nasal cannula is a single tube that does not branch into two, it is only necessary to install one valve near the oxygen outlet 5, and the valve 6 should be located closer to the patient side, that is, closer to the oxygen outlet 5. As the valve 6 opens and closes, it becomes more responsive to breathing and is effective in preventing fluctuations in gas composition, but it is preferable to move it slightly closer to the device to avoid problems such as noise generated when the valve 6 is opened and closed.
However, the effect of the present invention decreases as the position of the valve 6 is further away from the oxygen outlet 5, and therefore, it is desirable that the valve be located within 2 m from the oxygen outlet.
更に望ましくは、装置本体の内部配管に弁７を設置し、
鼻カニユーレの弁６と共に呼吸に応じて開閉の制御を行
う。More preferably, the valve 7 is installed in the internal piping of the device body,
Together with the nasal cannula valve 6, the opening and closing are controlled according to breathing.
すなわち、酸素ガスの供給圧は通常０．２〜０．５ｋｇ
／−が必要であるが、呼吸時酸素ガスの供給を停止して
いる間は弁７により酸素ガスの供給圧を遮断することに
より、鼻カニユーレに設置する弁６は極めて小型の弁の
使用が可能となる。この結果、鼻カニユーレの小型軽量
化が可能となり、患者への装着性の上でも非常に有利と
なる。That is, the supply pressure of oxygen gas is usually 0.2 to 0.5 kg.
/- is required, but by shutting off the oxygen gas supply pressure with the valve 7 while the oxygen gas supply is stopped during breathing, an extremely small valve can be used as the valve 6 installed in the nasal cannula. It becomes possible. As a result, the nasal cannula can be made smaller and lighter, which is very advantageous in terms of ease of installation on the patient.
弁６．７の開閉は、呼吸センサー８によって検出された
呼吸信号を弁開閉回路１０に送り、更にこの回路により
弁開閉の制御Ｂを行う。信号のやりとりはコード９によ
って行う。To open and close the valves 6.7, a breathing signal detected by the breathing sensor 8 is sent to a valve opening/closing circuit 10, and the valve opening/closing control B is further performed by this circuit. Signal exchange is performed using code 9.
呼吸センサー８は、呼気、吸気の際の鼻腔近傍の温度変
化として検出できるものが一般的で、このため通常怒温
素子が用いられる。例としては、サーミスタ５熱電対等
の温度センサ、あるいはセラミック等の焦電素子による
焦電センサーが挙げられるがこれらに限定されるもので
はない。The respiratory sensor 8 is generally capable of detecting temperature changes near the nasal cavity during exhalation and inhalation, and for this reason, an angry temperature element is usually used. Examples include, but are not limited to, a temperature sensor such as a thermistor 5 thermocouple, or a pyroelectric sensor using a pyroelectric element such as a ceramic.
開閉弁６，７の種類は、電磁弁または電動弁が主に用い
られるが、小型で開閉が効率的に行えるものであればよ
く、上記の２種類の弁に限定されない、鼻カニユーレ側
の弁６はその装着性を良好とするため小型の弁が望まし
い、しかし、一般に電磁弁はソレノイド部分が発熱し易
く、このため供給ガスの温度が必要以上に加熱される可
能性がある。従って、鼻カニユーレ用弁のソレノイド部
分は鼻カニューレチェーブ内を流れる酸素ガスの温度上
昇を防止するため、熱的に十分な絶縁が必要である。第
２図に本発明に用いられる鼻カニユーレ用電磁弁６の１
実施例を示す。ソレノイド１２及びポール１）によりガ
ス通路を遮断するもので、ソレノイド１２からの伝熱は
樹脂層１４により絶縁されている。The types of on-off valves 6 and 7 are mainly solenoid valves or electric valves, but any valve that is small and can be opened and closed efficiently is sufficient, and is not limited to the above two types of valves. 6, a small valve is desirable in order to make it easy to install. However, in general, the solenoid part of a solenoid valve tends to generate heat, and therefore the temperature of the supplied gas may be heated more than necessary. Therefore, the solenoid portion of the nasal cannula valve requires sufficient thermal insulation to prevent an increase in the temperature of the oxygen gas flowing within the nasal cannula channel. FIG. 2 shows part 1 of the solenoid valve 6 for nasal cannula used in the present invention.
An example is shown. The gas passage is blocked by the solenoid 12 and the pole 1), and heat transfer from the solenoid 12 is insulated by the resin layer 14.
またボール１）の可動部の形状は、この他に円筒。In addition, the shape of the movable part of ball 1) is cylindrical.
円堆１円板等が挙げられるがこれらに限定されない、更
に、弁６を取りはずし可能とすることにより、鼻カニュ
ーレチェーブ４を使い捨てとする一方で、弁６の繰り返
し使用が可能となる。Further, by making the valve 6 removable, the valve 6 can be used repeatedly while the nasal cannula tube 4 is disposable.
本発明の呼吸同調式酸素供給装置を用いると、呼吸に対
する酸素ガス供給の応答性にすぐれ、また供給ガスの酸
素濃度を極めて安定に保持することが可能である。When the breathing synchronized oxygen supply device of the present invention is used, the oxygen gas supply has excellent responsiveness to breathing, and the oxygen concentration of the supplied gas can be kept extremely stable.
この結果、患者の不快感を低減し、同時に臨床上の治療
効果にもすぐれていることから、本発明は医療上極めて
有効な装置である。As a result, the present invention is a medically extremely effective device because it reduces patient discomfort and at the same time has excellent clinical therapeutic effects.
第１図は本発明の一実施例となる呼吸同調式酸素供給装
置のブロック図で、第２図は本発明に用いられる鼻カニ
ユーレ用弁の１実施例である。また、第３図は従来の酸
素供給装置のブロック図である。
尚、図中の矢印は酸素ガスの流れ方向を示す。FIG. 1 is a block diagram of a breath synchronized oxygen supply device according to an embodiment of the present invention, and FIG. 2 is an embodiment of a nasal cannula valve used in the present invention. Further, FIG. 3 is a block diagram of a conventional oxygen supply device. Note that the arrow in the figure indicates the flow direction of oxygen gas.
Claims (3)
、呼吸センサーからの呼吸信号により該弁の開閉を行い
、酸素ガスの供給を制御することを特徴とする呼吸同調
式酸素供給装置。(1) A respiration-synchronized oxygen supply device characterized by having at least one valve in the nasal cannula, and opening and closing the valve in response to a respiration signal from a respiration sensor to control the supply of oxygen gas.
の位置及び本体の内部配管にそれぞれ少くとも１箇の弁
を有し、両方の弁の開閉を行うことを特徴とする、特許
請求の範囲第（１）項記載の呼吸同調式酸素供給装置。(2) The nasal cannula has at least one valve at a position within 2 m from the oxygen outlet and at the internal piping of the main body, and both valves are opened and closed. The breathing synchronized oxygen supply device described in (1).
弁であり、かつ弁を駆動するソレノイド部が鼻カニュー
レチェーブの外部にあることを特徴とする、特許請求の
範囲第（１）項または第（２）項記載の呼吸同調式酸素
供給装置。(3) The valve used in the nasal cannula section is a small solenoid valve, and the solenoid section for driving the valve is located outside the nasal cannula channel. The breathing synchronized oxygen supply device described in (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29039486A JPS63143082A (en) | 1986-12-08 | 1986-12-08 | Respiration tuning type oxygen feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29039486A JPS63143082A (en) | 1986-12-08 | 1986-12-08 | Respiration tuning type oxygen feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63143082A true JPS63143082A (en) | 1988-06-15 |
Family
ID=17755442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29039486A Pending JPS63143082A (en) | 1986-12-08 | 1986-12-08 | Respiration tuning type oxygen feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63143082A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598972A (en) * | 1982-07-07 | 1984-01-18 | 佐藤 暢 | Respiration synchronous type gas supply method and apparatus in open type respiratory system |
-
1986
- 1986-12-08 JP JP29039486A patent/JPS63143082A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS598972A (en) * | 1982-07-07 | 1984-01-18 | 佐藤 暢 | Respiration synchronous type gas supply method and apparatus in open type respiratory system |
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