JP2006034584A - Dead space load device - Google Patents
Dead space load device Download PDFInfo
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- JP2006034584A JP2006034584A JP2004218632A JP2004218632A JP2006034584A JP 2006034584 A JP2006034584 A JP 2006034584A JP 2004218632 A JP2004218632 A JP 2004218632A JP 2004218632 A JP2004218632 A JP 2004218632A JP 2006034584 A JP2006034584 A JP 2006034584A
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- dead space
- intake
- valve
- chamber
- space forming
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- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 10
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 238000011982 device technology Methods 0.000 abstract 1
- 230000004199 lung function Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004202 respiratory function Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
【課題】死腔負荷装置の技術においては、定量的な死腔量の設定が難しく、しかもデジタル的な容量設定が難しいために、負荷試験装置として使用しにくいという問題がある。
【解決手段】装置本体内を死腔形成室と吸気取り入れ室とに隔離壁によって分離し、前記死腔形成室の一方には呼吸口を設け、他方には呼気弁を設け、前記吸気取り入れ室の任意個所に吸気弁を設け、前記隔離壁には所定間隔に弁を配置して死腔形成室と吸気取り入れ室とを連通できるようにし、その弁の位置を死腔量が定量的に変わるように配置したことを特徴とする。
【選択図】 図１In the dead space loading device technology, there is a problem that it is difficult to set a quantitative amount of dead space, and it is difficult to use as a load testing device because it is difficult to set a digital capacity.
The inside of the apparatus body is separated into a dead space forming chamber and an inhalation intake chamber by an isolation wall, a breathing port is provided in one of the dead space forming chamber, and an exhalation valve is provided in the other, the inhalation intake chamber An intake valve is provided at an arbitrary position of the valve, and valves are arranged at predetermined intervals on the isolation wall so that the dead space forming chamber and the intake intake chamber can communicate with each other, and the amount of the dead space is quantitatively changed in the position of the valve. The arrangement is as follows.
[Selection] Figure 1
Description
本発明は、呼吸機能を検査するために用いることができる装置死腔の負荷装置に関する。 The present invention relates to a device for loading a device dead space that can be used for examining respiratory function.
医学的な検査には被検者に種々の負荷をかけて通常の検査ではわからない異常を検出する方法がある。
呼吸機能の負荷検査の方法として、運動負荷試験、高ＣＯ２ガス負荷試験、低Ｏ２負荷試験等が一般的であるが、その中に死腔負荷試験がある。
死腔とは、呼吸におけるガス交換に寄与しない空間であり、生体内には解剖学的死腔、生理学的死腔と呼ばれる部分があるが、さらに、検査時の測定装置によって生じる装置死腔がある。
In medical examination, there is a method of detecting abnormalities that cannot be detected by normal examination by applying various loads to the subject.
As a method for examining the respiratory function load, an exercise load test, a high CO 2 gas load test, a low O 2 load test, and the like are common, and among them, there is a dead space load test.
The dead space is a space that does not contribute to gas exchange in respiration. There are parts called anatomical dead space and physiological dead space in the living body, but there is also a device dead space generated by the measuring device at the time of examination. is there.
この装置死腔を図３によって模擬的に説明する。図において、装置の通気道１０１に呼気と吸気を分離するための吸気弁１０２と呼気弁１０３が接続してある。その通気道１０１に接続する呼吸口１０４によって被検者が呼吸を行うと、通気道１０１の吸気弁１０２と呼気弁１０３との間の空間（斜線部分）には前回呼出した呼気が残っており、次の吸気の際には、まずその残留呼気を吸ってから新鮮な吸気を吸入することになる。この空間は換気には関与しない部分であるために死腔と呼ばれている。これが装置死腔である。 This device dead space will be described with reference to FIG. In the figure, an inhalation valve 102 and an exhalation valve 103 for separating exhalation and inhalation are connected to an air passage 101 of the apparatus. When the subject breathes through the breathing port 104 connected to the vent passage 101, the exhaled breath that was previously called remains in the space (shaded portion) between the intake valve 102 and the exhalation valve 103 of the vent passage 101. At the time of the next inspiration, first, the remaining expiration is inhaled, and then fresh inspiration is inhaled. This space is called a dead space because it is a part not related to ventilation. This is the device dead space.
従来の装置死腔の負荷装置は、チューブを用い、その長さを調節することによって死腔量を決めている（例えば、特許文献１参照。）。
しかしながら、上述した従来の技術においては、定量的な死腔量の設定が難しく、死腔負荷試験装置として使用しにくいという問題がある。
本発明は、上記の問題点を解決するためになされたもので、デジタル的に死腔量の設定を可能にした手段を提供することを目的とする。
However, in the above-described conventional technology, there is a problem that it is difficult to set a quantitative amount of dead space and it is difficult to use as a dead space load test apparatus.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide means capable of digitally setting the dead space amount.
そこで本発明は、開放回路式の死腔負荷装置として、装置本体内を死腔形成室と吸気取り入れ室とに隔離壁によって分離し、前記死腔形成室の一方には呼吸口を設け、他方には呼気弁を設け、前記吸気取り入れ室の任意個所に吸気弁を設け、前記隔離壁には所定間隔に弁を配置して死腔形成室と吸気取り入れ室とを連通できるようにし、その弁の位置を死腔量が定量的に変わるように配置したことを特徴とする。 Accordingly, the present invention provides an open circuit type dead space loading device in which the inside of the device body is separated into a dead space forming chamber and an intake intake chamber by an isolation wall, and a breathing port is provided in one of the dead space forming chambers, Is provided with an exhalation valve, an inhalation valve is provided at an arbitrary position of the inhalation intake chamber, and a valve is disposed at a predetermined interval on the isolation wall so that the dead space forming chamber and the inhalation intake chamber can communicate with each other. The positions of are arranged so that the amount of dead space changes quantitatively.
これにより、本発明は、検査目的に応じて行う被検者の肺機能の測定に対して装置死腔量の値を定量的に変化させることができる効果が得られる。 As a result, the present invention provides an effect of quantitatively changing the value of the device dead space amount with respect to the measurement of the lung function of the subject performed according to the examination purpose.
以下に、図面を参照して本発明の実施例を説明する。
図１、図２は本発明の実施例を示す説明図である。
図において、１は装置死腔装置本体であり、その内部を死腔形成室２と吸気取り入れ室３とに隔離壁４によって分離されている。
前記死腔形成室２の一方には呼吸口５が設けてあり、他方には呼気弁６が設けてある。この呼気弁６に呼吸代謝測定装置等の各種装置が接続される。
Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are explanatory views showing an embodiment of the present invention.
In the figure, reference numeral 1 denotes a device dead space device main body, which is separated into a dead space forming chamber 2 and an intake intake chamber 3 by a separating wall 4.
One of the dead space forming chambers 2 is provided with a breathing port 5 and the other is provided with an exhalation valve 6. Various devices such as a respiratory metabolism measuring device are connected to the exhalation valve 6.
前記吸気取り入れ室３の任意個所に吸気弁７が設けてある。
前記隔離壁４には複数の弁８を所定間隔に配置して死腔形成室２と吸気取り入れ室３とが連通するようにしてあり、その弁８の位置は、図示する如く死腔量が例えば１００ｃｃと一定容量間隔となるように並べてあり、呼吸口５側から例えば２００ｃｃ、３００ｃｃと順次定量的に死腔量が付加するようになっている。
An intake valve 7 is provided at an arbitrary position of the intake intake chamber 3.
A plurality of valves 8 are arranged on the isolation wall 4 at predetermined intervals so that the dead space forming chamber 2 and the intake intake chamber 3 communicate with each other. For example, they are arranged so as to have a constant capacity interval of 100 cc, and the dead space amount is added quantitatively sequentially from the breathing port 5 side, for example, 200 cc and 300 cc.
前記弁８は電磁弁のような任意に操作できる弁であればどのような弁でもよい。
上記の構成の作用を説明する。
被検者が呼吸口５から呼吸をすると、呼気は呼気弁６を介して接続されている装置に排出される。吸気は開放されている弁８の個所から吸気弁７を介して吸入される。
そこで、呼気弁６に接続されている装置による検査目的に応じて行う被検者の肺機能の測定に対して装置死腔量の値を変化させるために、連続する弁８の中の開放させる弁８の位置を例えば図１から図２に示すように変えることによって、呼吸口５側から例えば２００ｃｃ、３００ｃｃと定量的に装置死腔量を変えて肺機能の検査をすることができる。
The valve 8 may be any valve as long as it can be arbitrarily operated, such as an electromagnetic valve.
The operation of the above configuration will be described.
When the subject breathes from the breathing port 5, the exhaled air is discharged to a device connected via the exhalation valve 6. The intake air is drawn through the intake valve 7 from the position of the opened valve 8.
Therefore, in order to change the value of the device dead space amount for the measurement of the lung function of the subject performed according to the examination purpose by the device connected to the exhalation valve 6, the continuous valve 8 is opened. By changing the position of the valve 8 as shown in FIGS. 1 and 2, for example, the lung function can be examined by quantitatively changing the device dead space amount to 200 cc and 300 cc from the breathing port 5 side.
１ 装置死腔装置本体
２ 死腔形成室
３ 吸気取り入れ室
４ 隔離壁
５ 呼吸口
６ 呼気弁
７ 吸気弁
８ 弁
DESCRIPTION OF SYMBOLS 1 Device dead space apparatus main body 2 Dead space formation chamber 3 Intake intake chamber 4 Isolation wall 5 Breathing port 6 Expiratory valve 7 Inspiratory valve 8 Valve
Claims (1)
The inside of the apparatus body is separated into a dead space forming chamber and an intake intake chamber by an isolation wall, a breathing port is provided in one of the dead space forming chambers, and an exhalation valve is provided in the other. An intake valve is provided, and valves are arranged on the isolation wall at predetermined intervals so that the dead space forming chamber and the intake intake chamber can communicate with each other, and the positions of these valves are arranged so that the amount of dead space changes quantitatively. A dead space loading device characterized by that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004218632A JP2006034584A (en) | 2004-07-27 | 2004-07-27 | Dead space load device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004218632A JP2006034584A (en) | 2004-07-27 | 2004-07-27 | Dead space load device |
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| Publication Number | Publication Date |
|---|---|
| JP2006034584A true JP2006034584A (en) | 2006-02-09 |
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|---|---|---|---|
| JP2004218632A Pending JP2006034584A (en) | 2004-07-27 | 2004-07-27 | Dead space load device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001506158A (en) * | 1996-12-19 | 2001-05-15 | ノバメトリックス メディカル システムズ インコーポレイテッド | Apparatus and method for non-invasively measuring cardiac output |
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2004
- 2004-07-27 JP JP2004218632A patent/JP2006034584A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001506158A (en) * | 1996-12-19 | 2001-05-15 | ノバメトリックス メディカル システムズ インコーポレイテッド | Apparatus and method for non-invasively measuring cardiac output |
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