JPH09122103A - Respiration monitor - Google Patents
Respiration monitorInfo
- Publication number
- JPH09122103A JPH09122103A JP7281203A JP28120395A JPH09122103A JP H09122103 A JPH09122103 A JP H09122103A JP 7281203 A JP7281203 A JP 7281203A JP 28120395 A JP28120395 A JP 28120395A JP H09122103 A JPH09122103 A JP H09122103A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen sensor
- cylindrical part
- mask
- sensor
- tubular portion
- 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
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】本発明は呼気分析装置あるい
は呼吸モニタに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a breath analyzer or respiration monitor.
【０００２】[0002]
【従来の技術】呼気分析装置あるいは呼吸モニタ（以下
呼吸モニタと総称する）として、マスクに一端を連結し
た配管の他端に酸素センサを設け、配管の前記他端側に
呼気を吸引する吸引ポンプを配置して呼気のサンプリン
グを行うものが使用されてきた。分析結果は酸素センサ
と電線で接続された表示部に表示される。2. Description of the Related Art As an exhalation analyzer or a respiratory monitor (generally referred to as a respiratory monitor hereinafter), an oxygen sensor is provided at the other end of a pipe having one end connected to a mask, and a suction pump for sucking exhaled air at the other end of the pipe. Have been used to sample exhaled breath. The analysis result is displayed on the display unit connected to the oxygen sensor by an electric wire.
【０００３】[0003]
【発明が解決しようとする課題】前記従来の呼吸モニタ
では、配管と吸引ポンプにより大形化するとか、吸引ポ
ンプの音が大きくて気になる等の問題点があった。The above-mentioned conventional respiratory monitor has problems that it is upsized by the piping and the suction pump, and that the sound of the suction pump is loud and annoying.
【０００４】そこで本願発明者は、配管と吸引ポンプを
廃止して小形化と静音化を図るべく、酸素センサを直接
マスクに取付けてみたが、高周波域のノイズが多くて実
用にならなかった。Therefore, the inventor of the present application directly attached the oxygen sensor to the mask in order to reduce the size and noise by eliminating the piping and the suction pump, but the noise in the high frequency region was not practical.
【０００５】そこで、本発明は、配管と吸引ポンプが不
要で、しかも酸素センサのノイズが少ない呼吸モニタを
提供することを目的とする。Therefore, an object of the present invention is to provide a respiratory monitor which does not require a pipe and a suction pump, and has less noise of an oxygen sensor.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
めに、請求項１の発明は、マスク（１）の呼気流れ方向
（Ｂ）に筒状部（５）を設け、該筒状部（５）の内側に
酸素センサ（９）を設置すると共に、筒状部（５）の酸
素センサ（９）下流に呼気排気部（１２）を形成したこ
とを特徴とする呼吸モニタである。In order to achieve the above object, the invention of claim 1 provides a mask (1) with a tubular portion (5) in the expiratory flow direction (B), and the tubular portion is provided. The breathing monitor is characterized in that an oxygen sensor (9) is installed inside (5), and an exhalation exhaust section (12) is formed downstream of the oxygen sensor (9) in the tubular section (5).
【０００７】請求項２の発明は、請求項１の呼吸モニタ
において、酸素センサ（９）が筒状部（５）の軸心付近
に設置され、呼気排気部（１２）が筒状部（５）の外周
を貫通する複数の孔（１２）からなることを特徴とする
ものである。According to a second aspect of the present invention, in the respiration monitor according to the first aspect, the oxygen sensor (9) is installed near the axis of the tubular portion (5), and the exhalation exhaust portion (12) is the tubular portion (5). ) Is composed of a plurality of holes (12) penetrating the outer periphery of the same.
【０００８】そして、請求項３の発明は、請求項１又は
２の呼吸モニタにおいて、酸素センサ（９）が平板状の
チップからなる限界電流式酸素センサであって、該酸素
センサ（９）が筒状部（５）の軸心に直角に設置されて
いることを特徴とするものである。According to the invention of claim 3, in the respiration monitor according to claim 1 or 2, the oxygen sensor (9) is a limiting current type oxygen sensor comprising a flat chip, and the oxygen sensor (9) is It is characterized in that it is installed at a right angle to the axis of the tubular portion (5).
【０００９】[0009]
【発明の実施の形態】図１、２の実施例において、１は
マスクで空気導入孔２が設けてあって、患者の鼻と口を
覆うように顔３にバンド４で装着して使用される。バン
ド４の両端はマスク１に取付けてある。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of FIGS. 1 and 2, reference numeral 1 is a mask provided with an air introduction hole 2 and is used by wearing a band 4 on a face 3 so as to cover the nose and mouth of a patient. It Both ends of the band 4 are attached to the mask 1.
【００１０】５は矢印Ｂで示す呼気流れ方向に軸心を合
わせてマスク１に取付けた円筒形の筒状部で、その先端
は有底円筒形のセンサ保持部材６で蓋をしたかたちにな
っている。筒状部５の内径はφ１３である。Reference numeral 5 denotes a cylindrical tubular portion attached to the mask 1 with its axis aligned with the direction of the expiratory flow indicated by the arrow B, and its tip is covered with a cylindrical sensor holding member 6 having a bottom. ing. The inner diameter of the tubular portion 5 is φ13.
【００１１】７は円板形のセンサ取付板で、該センサ取
付板７に電気的に絶縁して植設した４本の電極ピン８に
酸素センサ９のリード線を接続して酸素センサ９を取付
けてある。Reference numeral 7 denotes a disk-shaped sensor mounting plate, and the lead wires of the oxygen sensor 9 are connected to the four electrode pins 8 which are electrically insulated and planted in the sensor mounting plate 7 to connect the oxygen sensor 9 to the sensor mounting plate 7. It is installed.
【００１２】酸素センサ９は、特公平５−２２１７７号
で公知の薄膜限界電流式酸素センサを用いている。この
酸素センサは、電気絶縁性の基板上に、酸素ガスを透過
する第１電極と、前記第１電極を透過した前記酸素ガス
を前記第１電極との界面でイオン化した上、そのイオン
の伝導量に応じて電流を変化させる、一方向に結晶化し
た薄膜状の固体電解質と、前記固体電解質を伝導した前
記イオンを前記固体電解質との界面でガス化した上、そ
の酸素ガスを透過する第２電極とを順次積層したもの
で、四角い平板状のチップのかたちに作られている。As the oxygen sensor 9, a thin film limiting current type oxygen sensor known from Japanese Patent Publication No. 5-22177 is used. In this oxygen sensor, a first electrode that transmits oxygen gas and the oxygen gas that has passed through the first electrode are ionized at an interface between the first electrode and the first electrode on an electrically insulating substrate, and then the ions are conducted. Change the current according to the amount, in one direction crystallized thin film solid electrolyte, and the ions that have conducted the solid electrolyte gasified at the interface with the solid electrolyte, the oxygen gas permeation It is a stack of two electrodes and is formed in the shape of a rectangular flat plate.
【００１３】酸素センサ９のチップはその平面が筒状部
５の軸心と直角に設置され、かつチップは筒状部５の軸
心付近に設置されている。１０は酸素センサを表示部１
１に接続する４芯のコード、１２は筒状部５の外周を貫
通して明けた８個の孔からなる呼気排気部である。The chip of the oxygen sensor 9 is installed so that its plane is perpendicular to the axis of the tubular portion 5, and the chip is installed near the axis of the tubular portion 5. 10 is an oxygen sensor on the display unit 1
A four-core cord connected to 1 and an expiratory air exhaust portion 12 formed of eight holes penetrating the outer periphery of the tubular portion 5.
【００１４】呼気は図１（ａ）に矢印Ｃで示すように層
流となって筒状部５内を流れ、酸素センサ９のチップ表
面を通過して呼気排気部１２から筒状部５の外に排出さ
れる。Exhaled air becomes a laminar flow as shown by an arrow C in FIG. 1 (a), flows in the tubular portion 5, passes through the tip surface of the oxygen sensor 9, and passes from the exhaled air exhaust portion 12 to the tubular portion 5. It is discharged outside.
【００１５】図３は酸素センサ９の電気信号の波形で、
縦軸は酸素濃度を示す。因みに、筒状部５を設けなく
て、酸素センサを直接マスク１に取付けたときにのセン
サの電気信号は図４のようにノイズ成分の多いＳ／Ｎの
悪いものとなり、全く実用にならなかった。FIG. 3 is a waveform of the electric signal of the oxygen sensor 9,
The vertical axis represents the oxygen concentration. By the way, when the oxygen sensor is directly attached to the mask 1 without providing the tubular portion 5, the electric signal of the sensor has a bad S / N with many noise components as shown in FIG. 4, which is not practical at all. It was
【００１６】図２で、表示部１１に符号１３で示す波形
は酸素センサ９で検知した酸素濃度の電気信号波形で、
その波形の右側の数字２２は呼吸数を示す。In FIG. 2, the waveform indicated by reference numeral 13 on the display unit 11 is an electric signal waveform of the oxygen concentration detected by the oxygen sensor 9,
The number 22 on the right side of the waveform indicates the respiratory rate.
【００１７】[0017]
【発明の効果】本発明の呼吸モニタは上述のように構成
されているので、小形で静音化できるばかりでなく、セ
ンサ信号にノイズが入らないため、信頼性の高い呼吸モ
ニタを実現できる。Since the respiration monitor of the present invention is constructed as described above, not only can it be made compact and quiet, but noise can not be introduced into the sensor signal, so a highly reliable respiration monitor can be realized.
【００１８】また、限界電流式酸素センサのチップを請
求項２、３のように設置したため、感度が良い呼吸モニ
タを実現できる。Further, since the limiting current type oxygen sensor chip is installed as in the second and third aspects, it is possible to realize a respiratory monitor with high sensitivity.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施例の要部で、（ａ）は縦断面図、
（ｂ）は同図（ａ）のＡ−Ａ線断面図、（ｃ）は同図
（ａ）でマスク１を除いた部分のＰ視図である。FIG. 1 is a main part of an embodiment of the present invention, in which (a) is a longitudinal sectional view,
(B) is a cross-sectional view taken along the line AA of (a) of the same figure, and (c) is a P view of a portion excluding the mask 1 in the same figure (a).
【図２】本発明の使用状態を示す全体図である。FIG. 2 is an overall view showing a usage state of the present invention.
【図３】本発明の実施例における酸素センサの信号波形
を示す線図である。FIG. 3 is a diagram showing a signal waveform of the oxygen sensor in the example of the present invention.
【図４】マスクに直接酸素センサを取付けたときの信号
波形を示す線図である。FIG. 4 is a diagram showing a signal waveform when an oxygen sensor is directly attached to a mask.
１ マスク ５ 筒状部 ９ 酸素センサ １２ 呼気排気部（孔） Ｂ 呼気流れ方向 1 Mask 5 Cylindrical part 9 Oxygen sensor 12 Expiratory exhaust part (hole) B Expiratory flow direction
Claims (3)
該筒状部の内側に酸素センサを設置すると共に、筒状部
の酸素センサ下流に呼気排気部を形成したことを特徴と
する呼吸モニタ。1. A cylindrical portion is provided in a direction of exhalation flow of a mask,
A breath monitor, wherein an oxygen sensor is installed inside the tubular portion, and an exhaled gas exhaust portion is formed downstream of the oxygen sensor in the tubular portion.
れ、呼気排気部が筒状部の外周を貫通する複数の孔から
なることを特徴とする請求項１記載の呼吸モニタ。2. The respiratory monitor according to claim 1, wherein the oxygen sensor is installed in the vicinity of the axis of the tubular portion, and the expiratory air exhaust portion comprises a plurality of holes penetrating the outer periphery of the tubular portion.
界電流式酸素センサであって、該酸素センサが筒状部の
軸心に直角に設置されていることを特徴とする請求項１
又は２記載の呼吸モニタ。3. The oxygen sensor is a limiting current type oxygen sensor comprising a flat chip, and the oxygen sensor is installed at right angles to the axial center of the tubular portion.
Or the respiratory monitor according to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7281203A JPH09122103A (en) | 1995-10-30 | 1995-10-30 | Respiration monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7281203A JPH09122103A (en) | 1995-10-30 | 1995-10-30 | Respiration monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09122103A true JPH09122103A (en) | 1997-05-13 |
Family
ID=17635796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7281203A Pending JPH09122103A (en) | 1995-10-30 | 1995-10-30 | Respiration monitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09122103A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183235A (en) * | 2007-01-30 | 2008-08-14 | Ngk Spark Plug Co Ltd | Respiration sensor |
| CN112135654A (en) * | 2018-08-17 | 2020-12-25 | 深圳迈瑞生物医疗电子股份有限公司 | Oxygen sensor connection structure, ventilation apparatus, and ventilation system |
-
1995
- 1995-10-30 JP JP7281203A patent/JPH09122103A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008183235A (en) * | 2007-01-30 | 2008-08-14 | Ngk Spark Plug Co Ltd | Respiration sensor |
| CN112135654A (en) * | 2018-08-17 | 2020-12-25 | 深圳迈瑞生物医疗电子股份有限公司 | Oxygen sensor connection structure, ventilation apparatus, and ventilation system |
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