JP2000079164A - Breath tuning oxygen supplying device - Google Patents
Breath tuning oxygen supplying deviceInfo
- Publication number
- JP2000079164A JP2000079164A JP10252345A JP25234598A JP2000079164A JP 2000079164 A JP2000079164 A JP 2000079164A JP 10252345 A JP10252345 A JP 10252345A JP 25234598 A JP25234598 A JP 25234598A JP 2000079164 A JP2000079164 A JP 2000079164A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- respiratory
- breathing
- valve
- automatic
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/70—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in livestock or poultry
Landscapes
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、呼吸器疾患患者等
に呼吸用気体を供給する開放型の供給手段と共に用いら
れ得る呼吸数測定機能を備えた呼吸用気体供給装置に関
する。さらに詳細には使用者の呼吸に同調して呼吸用気
体を供給するデマンド機能付き気体供給装置において、
患者の呼吸数を測定し表示する機能を備えた呼吸用気体
供給装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a respiratory gas supply device having a respiratory rate measuring function which can be used together with an open type supply means for supplying respiratory gas to patients with respiratory diseases. More specifically, in a gas supply device with a demand function that supplies a breathing gas in synchronization with the user's breathing,
The present invention relates to a respiratory gas supply device having a function of measuring and displaying a patient's respiratory rate.
【０００２】[0002]
【従来の技術】従来、呼吸器疾患の患者に対して酸素ボ
ンベから酸素ガスを供給する酸素療法が行われており、
最近では空気中の酸素を分離濃縮して酸素濃縮気体を得
るための酸素濃縮器、例えば酸素を選択的に吸着し得る
吸着剤を酸素濃縮機能部として用いた吸着型酸素濃縮器
や、酸素選択透過性膜を酸素濃縮機能部として用いた膜
型酸素濃縮器が開発され、それらを用いた酸素療法が次
第に普及するようになってきている。2. Description of the Related Art Conventionally, oxygen therapy for supplying oxygen gas from an oxygen cylinder to a patient with a respiratory disease has been performed.
Recently, oxygen concentrators for obtaining oxygen-enriched gas by separating and concentrating oxygen in the air, such as an adsorption-type oxygen concentrator using an adsorbent capable of selectively adsorbing oxygen as an oxygen concentrating function, Membrane-type oxygen concentrators using a permeable membrane as an oxygen concentrating function have been developed, and oxygen therapy using them has been gradually becoming popular.
【０００３】また、酸素療法が用いられる他の酸素供給
方式として、液体酸素から適当に制御された速度で蒸発
した酸素を患者に供給する方法も知られている。As another oxygen supply system using oxygen therapy, there is known a method of supplying oxygen evaporated from liquid oxygen to a patient at an appropriately controlled rate.
【０００４】酸素濃縮器は、病院において使用するのみ
ならず、在宅医療用に家庭においても使用される場合が
次第に多くなってきている。なおこれらの酸素濃縮器
は、病院や家庭において個々に配置され、別々に運転状
況の把握及びその管理がなされている。[0004] Oxygen concentrators are increasingly used not only in hospitals but also in homes for home care. These oxygen concentrators are individually arranged in hospitals and homes, and the operating conditions are separately grasped and managed.
【０００５】酸素吸入患者が酸素供給源から酸素ガスを
吸入する場合、特に戸外に外出する場合などは酸素ボン
ベを使用し、ボンベから連続供給するのではなく、吸気
時にのみ酸素を供給し、呼気時には酸素供給をストップ
することにより酸素供給の無駄を無くし、酸素ボンベの
使用時間を延長することが可能な装置であるデマンドバ
ルブが使用されている。また、安静時と労作時では異な
る酸素流量が処方される場合が多く、外出などは労作時
として吸入酸素量を多めに設定している。When an oxygen inhalation patient inhales oxygen gas from an oxygen supply source, particularly when going out of doors, an oxygen cylinder is used. Instead of continuously supplying oxygen from the cylinder, oxygen is supplied only during inspiration and exhalation is performed. In some cases, a demand valve, which is a device capable of eliminating waste of oxygen supply by stopping oxygen supply and extending the use time of an oxygen cylinder, is used. In addition, different oxygen flow rates are often prescribed at rest and during exertion, and when going out, the amount of inhaled oxygen is set higher during exercise.
【０００６】[0006]
【発明が解決しようとする課題】患者の呼吸数は一分間
当たりの呼吸回数で表わされ、自身が時計を見ながら呼
吸の回数を測定することで容易に求めることが出来る。
しかし、体調に問題ない場合は自身が時計で一分間測定
すれば良いが、呼吸がやや苦しくなったころなどは測定
が困難な場合がある。The respiratory rate of a patient is represented by the number of breaths per minute, and can be easily obtained by measuring the number of breaths while watching the clock.
However, if there is no problem with the physical condition, it is sufficient to measure for one minute with a watch, but it may be difficult to measure when breathing becomes slightly painful.
【０００７】本発明は、まず鼻カニューラ等を用いて呼
吸器疾患患者に酸素濃縮気体等の呼吸用気体を供給する
酸素療法において、呼吸用気体を供給しながら患者の呼
吸状態を容易に測定し得る呼吸測定機能を備えた呼吸用
気体供給装置を提供することを目的としている。The present invention provides an oxygen therapy for supplying a respiratory gas such as an oxygen-enriched gas to a respiratory disease patient using a nasal cannula or the like. It is an object of the present invention to provide a respiratory gas supply device having a respiratory measurement function.
【０００８】[0008]
【課題を解決するための手段】かかる課題に対して鋭意
検討した結果、デマンドバルブの開閉信号を記憶するこ
とによって呼吸数を計算し表示させることが可能となる
ことを見出した。As a result of intensive studies on such a problem, it has been found that storing a demand valve opening / closing signal makes it possible to calculate and display a respiratory rate.
【０００９】即ち、本発明は、酸素発生手段と、一端が
該発生手段に連通し他端に該呼吸用気体の開放型供給手
段を有し、途中に自動開閉弁手段を有した導管手段、呼
吸における少なくとも一部の所定位相を検知し得る機能
を有した呼吸位相検知手段、該検知手段の検知結果に基
づいて該自動開閉弁手段の開閉を制御する制御手段を備
えた呼吸同調酸素供給装置において、該自動開閉弁手段
の作動回数を記憶する手段及び該記憶結果に基づいて一
分間当たりの該作動回数を演算し、その結果を表示する
手段を有することを特徴とする呼吸同調酸素供給装置を
提供するものである。That is, the present invention provides a conduit means having oxygen generating means, open-type supply means for breathing gas at one end communicating with the generating means at the other end, and automatic opening / closing valve means on the way; A respiratory-tuned oxygen supply device comprising: a respiratory phase detecting means having a function of detecting at least a part of a predetermined phase in breathing; and a control means for controlling opening and closing of the automatic opening / closing valve means based on a detection result of the detecting means. , A means for storing the number of times of operation of the automatic opening / closing valve means, and a means for calculating the number of times of operation per minute based on the storage result, and displaying the result thereof, Is provided.
【００１０】[0010]
【発明の実施の形態】図１は、本発明の呼吸用気体供給
装置の好ましい実施態様の１例を示したものである。即
ち、呼吸用気体の発生手段である酸素ボンベ１から出た
酸素は、減圧弁１０１、圧力調節弁１０２を経て、流量
設定器２、自動流路開閉（弁）手段３を備えた導管手段
５を通って、開放型供給手段である鼻カニューラ７から
放出される。FIG. 1 shows an example of a preferred embodiment of the respiratory gas supply device according to the present invention. That is, oxygen flowing from the oxygen cylinder 1, which is a means for generating respiratory gas, passes through a pressure reducing valve 101 and a pressure regulating valve 102, and is connected to a conduit means 5 provided with a flow setter 2 and an automatic flow path opening / closing (valve) means 3. Through the nasal cannula 7, which is an open supply.
【００１１】導管手段５からの分岐に設けられたダイヤ
フラム式の微圧変動センサーを備えた呼吸位相検知手段
９により呼吸における圧力変動が静電容量の変動に変換
され、制御手段１０における変換回路１２により静電容
量の変動が電気パルスの信号の変動に変換され、さらに
カウント回路１４により電気パルス信号が単位時間（例
えば１０ｍｓｅｃ）当りのパルス数の信号となる。カウ
ント回路１４から出てくるパルス数信号は、好ましくは
平滑化回路１５で平滑化されて雑音（ｎｏｉｓｅ）を低
減させる。これは簡便には、現データと過去数回例えば
３回のＤａｔａを積算して、４個のデータの平均を求め
るという、移動平均操作により達成される。The pressure fluctuation in the respiration is converted into the fluctuation of the capacitance by the respiration phase detecting means 9 provided with a diaphragm type small pressure fluctuation sensor provided at the branch from the conduit means 5, and the conversion circuit 12 in the control means 10. Thus, the change in the capacitance is converted into the change in the signal of the electric pulse, and the count circuit 14 converts the electric pulse signal into a signal of the number of pulses per unit time (for example, 10 msec). The pulse number signal coming out of the counting circuit 14 is preferably smoothed by a smoothing circuit 15 to reduce noise. This is easily achieved by a moving average operation in which current data and the past several times, for example, three times of Data are integrated to obtain an average of four data.
【００１２】この様にして得られたデジタル信号を用い
て、マイクロコンピューター等のＣＰＵ１１における吸
気開始点検知手段１６において、そのデジタル信号の時
間に対する変動量、即ち微分値が算出されてその値が所
定値より大きい場合に吸気開始点として検知される。
尚、かかる所定値は、吸気検出感度設定記憶手段１８に
より設定されるものであり、外部からの入力により設定
し得るものが好ましい。Using the digital signal obtained in this way, the intake start point detecting means 16 in the CPU 11 such as a microcomputer calculates the amount of variation of the digital signal with respect to time, that is, the differential value, and sets the value to a predetermined value. If it is larger than the value, it is detected as the intake start point.
Note that the predetermined value is set by the intake detection sensitivity setting storage unit 18, and is preferably set by an external input.
【００１３】かかる吸気開始時点とその直前の呼吸サイ
クルにおける吸気開始時点の間の時間を測定して記憶し
Ｎ回の呼吸サイクルについての平均呼吸周期を、演算手
段２０によりｔ1として算出する。尚、Ｎの値として
は、１であってもよいが、平均値を用いる場合には２〜
１０の範囲で適宜選択される。The time between the start of inspiration and the start of inspiration in the immediately preceding respiration cycle is measured and stored, and the average respiration cycle for N respiration cycles is calculated as t 1 by the calculating means 20. Incidentally, the value of N may be 1, but when the average value is used, it is 2 to 2.
It is appropriately selected in the range of 10.
【００１４】またあらかじめ、その装置に関して求めて
おいた処方流量（Ｖ）と呼吸周期（ｔ1）と自動開閉弁
の開時間（ｔ0）の関係パターンを、入力手段２２から
入力し、記憶手段２３に記憶しておく。更に処方流量
（Ｖ）を入力手段２４から入力し記憶手段２５により記
憶しておく。The relational pattern of the prescription flow rate (V), the respiratory cycle (t 1 ), and the opening time (t 0 ) of the automatic opening / closing valve, which have been obtained in advance for the apparatus, is inputted from the input means 22 and stored. 23. Further, the prescription flow rate (V) is inputted from the input means 24 and stored in the storage means 25.
【００１５】かくして、該設定最大流量の下で、装置特
性に対応して予め定められたカニューラ出口流量と該自
動流路開閉手段の開時間との関係に従い、吸気直前の１
回を含む複数回の呼吸サイクル又は呼吸周期から算出さ
れた当該吸気に係る呼吸サイクル又は呼吸周期及び設定
された酸素節減比率及び処方流量から定まる１パルス当
りの流量に対応して設定される開時間の間、患者へ酸素
を供給するためにデマンドレギュレーターが該自動流路
開閉手段３を開にする。即ちタイマー手段２７から出さ
れる開時間に対応した信号に従い、開閉調節手段３０に
より出される駆動力により、該自動流路開閉手段３を
「開」状態にする。Thus, under the set maximum flow rate, according to the relationship between the cannula outlet flow rate predetermined according to the device characteristics and the opening time of the automatic flow passage opening / closing means, one time just before intake is obtained.
Opening time set in accordance with the respiratory cycle or respiratory cycle related to the inhalation calculated from a plurality of respiratory cycles including respiratory cycles or respiratory cycles, the set oxygen saving ratio and the flow rate per pulse determined from the prescribed flow rate During this time, the demand regulator opens the automatic channel opening / closing means 3 to supply oxygen to the patient. That is, the automatic flow path opening / closing means 3 is set to the “open” state by the driving force output by the opening / closing adjustment means 30 in accordance with a signal corresponding to the opening time output from the timer means 27.
【００１６】このように自動開閉弁は使用者の呼吸に対
応して開閉を繰り返す。即ち、一呼吸あたり自動開閉弁
は1回ずつ「開」「閉」を行なう。従って患者の呼吸数
は自動開閉弁の開閉回数で表わすことが出来、かかる自
動開閉弁の「開」情報或いは「閉」情報を記憶し一分間
当たりの回数を計算することにより呼吸数（ＢＰＭ）が
計算することが出来る。As described above, the automatic on-off valve repeatedly opens and closes in response to the user's breathing. That is, the automatic on-off valve opens and closes once each breath. Therefore, the patient's respiratory rate can be represented by the number of times the automatic on-off valve is opened and closed. By storing the "open" information or "closed" information of the automatic on-off valve and calculating the number of times per minute, the respiratory rate (BPM) is obtained. Can be calculated.
【００１７】取得情報は、ＣＰＵから自動開閉弁の
「開」或いは「閉」の作動司令情報の回数を記憶手段３
１により記憶することにより呼吸数の演算が可能であ
る。また、別途自動開閉弁から直接作動回数の情報を検
知することも可能である。The acquired information indicates the number of times the CPU has opened or closed the automatic open / close valve by the number of times of operation command information.
Storing by 1 enables calculation of the respiratory rate. It is also possible to detect information on the number of times of operation directly from an automatic opening / closing valve separately.
【００１８】呼吸数の計算は、例えば図２に示すよう
に、１０秒当たりの自動開閉弁の作動回数（Ｃ１，Ｃ
２，Ｃ３，・・・・・・・・，Ｃn）を順次記憶し、最初の1分間
（Ｃ1〜Ｃ６）の合計作動回数Ａを計算することで呼吸
数を計算する。以降、１０秒毎にデータを更新し、液晶
表示部３２で患者に呼吸数をリアルタイムで表示するこ
とができる。尚、データの取得回数（更新時間）、計算
方法は、特に限定するものではない。The calculation of the respiration rate is performed, for example, as shown in FIG.
, Cn) are sequentially stored, and the respiratory rate is calculated by calculating the total number of operations A for the first minute (C1 to C6). Thereafter, the data is updated every 10 seconds, and the patient's respiration rate can be displayed on the liquid crystal display unit 32 in real time. The number of data acquisitions (update time) and the calculation method are not particularly limited.
【００１９】[0019]
【発明の効果】在宅酸素吸入療法では、医師の処方に従
って患者が自宅で酸素吸入を行なうもので、患者自身が
病態の自己管理を行なうのが前提となる。従来、人工呼
吸器には呼吸数を測定する装置は付いているものの、酸
素濃縮器や呼吸同調酸素濃縮器には簡易に呼吸数を測定
する手段はなく、装置単体としても簡易測定が可能で、
安価な装置はない。かかる装置は、吸入酸素療法を行な
っている患者が使用しているデマンドバルブのバルブ開
閉情報を記憶し、呼吸数を計算するものであり、患者自
身が呼吸数を測定することなく、リアルタイムで表示す
ることが可能となる。このように呼吸数と病態の関係
が、呼吸数を表示することで患者自身が把握することが
可能となり、病態の自己管理に役立つ装置である。According to the home oxygen inhalation therapy, the patient inhales oxygen at home according to the doctor's prescription, and it is premised that the patient himself manages the disease state. Conventionally, although a respirator is equipped with a device for measuring the respiratory rate, oxygen concentrators and respiratory-tuned oxygen concentrators do not have a simple means for measuring respiratory rate. ,
There is no cheap device. Such a device stores valve opening and closing information of a demand valve used by a patient who is performing inhaled oxygen therapy, and calculates a respiratory rate, and displays the information in real time without measuring the respiratory rate by the patient himself. It is possible to do. As described above, the relationship between the respiratory rate and the disease state can be grasped by the patient himself by displaying the respiratory rate, and the apparatus is useful for self-management of the disease state.
【図１】本発明の好ましい態様例。FIG. 1 shows a preferred embodiment of the present invention.
【図２】本発明の呼吸数の計算方法の一例。FIG. 2 shows an example of a method for calculating a respiratory rate according to the present invention.
Claims (1)
通し他端に該呼吸用気体の開放型供給手段を有し、途中
に自動開閉弁手段を有した導管手段、呼吸における少な
くとも一部の所定位相を検知し得る機能を有した呼吸位
相検知手段、該検知手段の検知結果に基づいて該自動開
閉弁手段の開閉を制御する制御手段を備えた呼吸同調酸
素供給装置において、該自動開閉弁手段の作動回数を記
憶する手段及び該記憶結果に基づいて一分間当たりの該
作動回数を演算し、その結果を表示する手段を有するこ
とを特徴とする呼吸同調酸素供給装置。1. An oxygen generating means, a conduit means having one end communicating with the generating means and an open supply means for the respiratory gas at the other end, and an automatic opening / closing valve means on the way, at least one of the breathing means. A respiratory-phase oxygen supply device, comprising: a respiratory phase detecting means having a function of detecting a predetermined phase of the section; and a control means for controlling opening and closing of the automatic opening / closing valve means based on a detection result of the detecting means. A respiratory-synchronized oxygen supply device comprising: means for storing the number of times of operation of the on-off valve means; and means for calculating the number of times of operation per minute based on the stored result, and displaying the result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10252345A JP2000079164A (en) | 1998-09-07 | 1998-09-07 | Breath tuning oxygen supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10252345A JP2000079164A (en) | 1998-09-07 | 1998-09-07 | Breath tuning oxygen supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000079164A true JP2000079164A (en) | 2000-03-21 |
Family
ID=17235997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10252345A Pending JP2000079164A (en) | 1998-09-07 | 1998-09-07 | Breath tuning oxygen supplying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000079164A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002298022A (en) * | 2001-03-30 | 2002-10-11 | Teijin Ltd | Oxygen cylinder managing system for at-home oxygen treatment |
| US7306657B2 (en) | 2003-10-28 | 2007-12-11 | Ngk Spark Plug Co., Ltd. | Oxygen concentrating apparatus |
| JP2015521135A (en) * | 2012-05-30 | 2015-07-27 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft passengers in a hybrid system |
| JP2015522461A (en) * | 2012-05-25 | 2015-08-06 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft pilots |
| JP2015523260A (en) * | 2012-05-25 | 2015-08-13 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft passengers |
-
1998
- 1998-09-07 JP JP10252345A patent/JP2000079164A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002298022A (en) * | 2001-03-30 | 2002-10-11 | Teijin Ltd | Oxygen cylinder managing system for at-home oxygen treatment |
| US7306657B2 (en) | 2003-10-28 | 2007-12-11 | Ngk Spark Plug Co., Ltd. | Oxygen concentrating apparatus |
| JP2015522461A (en) * | 2012-05-25 | 2015-08-06 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft pilots |
| JP2015523260A (en) * | 2012-05-25 | 2015-08-13 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft passengers |
| JP2015521135A (en) * | 2012-05-30 | 2015-07-27 | ビーイー・エアロスペース・インコーポレーテッド | Onboard production of oxygen for aircraft passengers in a hybrid system |
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