JP2000233024A - Respirator valve device of bellows-shaped artificial respirator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a respirator valve device having a valve function capable of opening and closing in accordance with the respiration, on its respirator part without mounting a valve opening and closing mechanism connecting a bellows-shaped part and a mask part. SOLUTION: In a respirator 3 capable of sending the air from the bellows 1 through a vent pipe 2, a valve chamber 4 opened into the respirator 3 is mounted on a circumferential wall 3a of the respirator 3, a discharge port 5 and an intake port 6 are formed on a wall surface 4a of the valve chamber 4, a point 2a of the vent pipe 2 is connected to the intake port 6, further a discharge valve 7 is mounted on the discharge port 5, an intake valve 8 is mounted on the intake port 6, and the discharge valve 7 and the intake valve 8 are connected through a link mechanism 9 for opening one of the valves when the other is closed, in the respirator of an artificial respirator.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a respiratory mask valve device for a bellows type artificial respirator.

[0002]

2. Description of the Related Art The inventor has previously proposed a bellows type artificial respirator (Japanese Patent Application No. 8-229375). The feature is to operate artificial respiration with one hand or one foot, push the bellows to send air to the user's lungs, so that when the bellows is inflated and the air is stored inside, the air can be exhaled from the user's lungs Has become. However, in the invention, there is a problem that the structure of the opening / closing operation means related to the bellows portion and the mask portion for discharging the air (lung air) in the mask to the outside is complicated.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a valve opening / closing mechanism for connecting a bellows portion and a mask portion is not provided.
An object of the present invention is to provide a respiratory mask valve device having a valve function for opening and closing a respiratory mask portion in response to breathing.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a respiratory mask 3 blown from a bellows 1 through a ventilation pipe 2 and provided on an enclosing wall 3a of the respiratory mask 3. A valve chamber 4 is provided which is opened inside the valve chamber 4.
An exhaust port 5 and an air supply port 6 are provided on a wall surface 4a of the air passage, a tip end portion 2a of the ventilation pipe 2 is connected to the air supply port 6, and an exhaust valve 7 is provided at the exhaust port 5, An artificial respiration device comprising an air supply valve 8 provided at the air port 6 and connecting the exhaust valve 7 and the air supply valve 8 via a link mechanism 9 that opens one of the valves and closes the other valve. Is a respiratory mask valve device.

Further, in the above structure, the link mechanism 9 is formed by fixing an exhaust valve 7 and an air supply valve 8 to a pivot shaft 10 pivotally supported by a wall surface 4a of the valve chamber 4, and the exhaust port 5 is provided. When the exhaust valve 7 is closed, the air supply valve 8 of the air supply port 6 is closed.
Is opened, and when the exhaust valve 7 of the exhaust port 5 is opened, the air supply port 6 is closed by the air supply valve 8.

Further, in the above configuration, the link mechanism 9 is provided with a connecting shaft 13 connecting the exhaust valve 7 and the air supply valve 8 to a support portion 12 having a bearing hole 11 provided in the wall surface 4a of the valve chamber 4. When the exhaust port 5 is closed by the exhaust valve 7, the air supply valve 8 of the air supply port 6 is opened, and when the exhaust valve 7 of the exhaust port 5 is open, The air port 6 is closed by the air supply valve 8.

Further, in the above configuration, the link mechanism 9 is configured such that the exhaust valve 7 and the air supply valve 8 are integrally formed on a slide valve support portion 15 having a slide surface 14 provided in the wall surface 4a of the valve chamber 4. The slide valve 16 that has become
a, the air supply valve 8 is directed toward the air supply port 6, and the exhaust valve 7 is mounted on the side surface 16b toward the air exhaust port 5. When the air exhaust port 5 is closed by the exhaust valve 7, the air supply port 6 The said air supply valve 8
Is opened, and when the exhaust valve 7 of the exhaust port 5 is opened, the air supply port 6 is closed by the air supply valve 8.

Further, in the above configuration, the urging means 1 for urging the exhaust valve 7 in a direction in which the exhaust port 5 is opened.
4 is provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described with reference to the drawings. According to the present invention, as shown in FIG. 1, in a respiratory mask 3 blown from a bellows 1 via a ventilation pipe 2, a valve chamber 4 opened into the mask 3 is provided on an enclosing wall 3a of the respiratory mask 3. An exhaust port 5 and an air supply port 6 are provided on a wall surface 4a of the valve chamber 4, the tip 2a of the ventilation pipe 2 is connected to the air supply port 6, and an exhaust valve 7 is connected to the exhaust port 5. And an air supply valve 8 is provided in the air supply port 6, and the exhaust valve 7 and the air supply valve 8 are connected via a link mechanism 9 that closes one of the valves when one of the valves is opened. It is composed.

The bellows 1 may be of a type that manually performs "expansion" and "deflation", or a type that presses with hands and feet to deflate and expands a contracted volume by the force of a spring. Also, the bellows 1 “inflate” and “wither”
Can be performed using the power of a motor or the like.

As shown in FIGS. 2 and 3, the link mechanism 9 includes a pivot shaft 10 pivotally supported on a wall surface 4a of the valve chamber 4.
The exhaust valve 7 and the air supply valve 8 are fixed to each other. As shown in FIG. 2, when the air exhaust port 5 is closed by the exhaust valve 7, the air supply valve 8 of the air supply port 6 is closed. When the exhaust valve 7 of the exhaust port 5 is opened, as shown in FIG. 3, the air supply port 6 is closed by the air supply valve 8.

In addition, as shown in FIGS. 4 and 5, the link mechanism 9 has a support portion 12 having a bearing hole 11 provided in a wall surface 4a of the valve chamber 4 and the exhaust valve 7 and the supply valve. When the exhaust port 5 is closed by the exhaust valve 7 as shown in FIG. 8, the exhaust valve 7 of the exhaust port 5 is opened as shown in FIG.
The air supply port 6 can be closed by the air supply valve 8 when is opened.

Aside from those link mechanisms 9, FIG.
As shown in FIG. 7, a slide valve 16 having an exhaust valve 7 and an air supply valve 8 integrated with a slide valve support portion 15 having a slide surface 14 provided in a wall surface 4a of the valve chamber 4 is provided. The air supply valve 8 is mounted on the end face 16a toward the air supply port 6 and the exhaust valve 7 is mounted on the side surface 16b toward the air outlet 5. As shown in FIG. When the valve is closed, the supply valve 8 of the supply port 6 is opened, and as shown in FIG. 7, when the exhaust valve 7 of the exhaust port 5 is open, the supply port 6 is connected to the supply valve 8. Can be closed with.

Further, as shown in FIGS. 8 and 9, an urging means 17 for urging the exhaust valve 7 in a direction in which the exhaust port 5 opens may be provided. As the urging means 17, for example, a spring 18 as shown in FIG. 9 or a coil spring 19 as shown in FIG. 8 can be used.

[0015]

The present invention is as described above. By linking the exhaust valve 7 and the air supply valve 8 of the respiratory mask 3 with the link mechanism 9, the exhaust port 5 is connected to the exhaust valve 7 The air supply valve 8 of the air supply port 6 is opened when the air supply valve 6 is closed, and the air supply port 6 is closed by the air supply valve 8 when the exhaust valve 7 of the air exhaust port 5 is opened. . For this purpose, if the bellows 1 is operated with one hand or one foot to perform the operation of pumping air, the air supply valve 8 of the air supply port 6 is opened by the pressure of the sent air (at this time, the air supply valve 8 is operated). Then, the exhaust valve 7 of the exhaust port 5 is closed, and the exhaust valve 7 is pressed by the pressure of the air inside the mask). Pumped.

The link mechanism 9 can take various forms, and in any case, the exhaust port 5 and the supply port 6 are formed by reciprocating the exhaust valve 7 and the supply valve 8. And can be alternately opened and closed. Exhaust valve 7
In the embodiment of the slide valve 16 in which the air supply valve 8 and the air supply valve 8 are integrated, if a lightweight material is used, the air supply valve 8 on the end face 16a is easily sucked into the air supply port 6 and closed. It can be made to open with pneumatic pressure. Further, there is an advantage that the exhaust valve 7 can be opened and closed on the side 16b because the exhaust valve 7 is hardly affected by the air pressure.

While the bellows 1 is inflated by the force of the hand or the force of the spring and air is stored in the bellows 1, the inside of the ventilation pipe 2 is depressurized and the air supply valve 8 of the air supply port 6 is opened. The exhaust valve 7 of the exhaust port 5 is opened in conjunction with this, and the exhaust valve 7 of the exhaust port 5 is opened. Air can be exhaled from the lungs. At this time, in a mode in which the urging means 17 is provided on the exhaust valve 7, the exhaust valve 7 of the exhaust port 5 can be reliably opened by the urging force.

Therefore, the exhaust valve 7 and the air supply valve of the breathing mask 3 are not required, without the need for an opening / closing mechanism for opening and closing the valve connecting the bellows portion and the breathing mask as in the prior invention of the present inventor. 8 can be operated in conjunction with changes in air pressure to push the bellows 1 to pump air to the user's lungs and to inflate the bellows 1 to store air therein, while the user's lungs are inflated. It is now possible to exhale air from

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a use state of the entire artificial respirator of the present invention.

FIG. 2 is a longitudinal side view showing a state when air is sent to a lung.

FIG. 3 is a longitudinal side view showing a state when air is discharged from the lung of FIG. 2;

FIG. 4 is a longitudinal sectional side view showing a state when air of another form is sent to a lung.

FIG. 5 is a vertical sectional side view showing a state when air is discharged from the lung of FIG. 4;

FIG. 6 is a longitudinal sectional side view showing a valve chamber portion in a state when air of another form is sent to a lung.

FIG. 7 is a longitudinal sectional side view showing a valve chamber portion in a state when air is discharged from the lung in FIG. 6;

FIG. 8 is a longitudinal sectional side view showing a valve chamber portion of FIG. 2;

FIG. 9 is a longitudinal sectional side view showing a valve chamber portion of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bellow 2 Vent pipe 2a Tip of vent pipe 3 Respirator 3a Enclosure wall of respirator 4 Valve room 4a Wall of valve room 5 Exhaust port 6 Air supply port 7 Exhaust valve 8 Air supply valve 9 Link mechanism 10 Pivot shaft 11 Bearing hole 12 Support portion 13 Connecting shaft 14 Slide surface 15 Slide valve support portion 16 Slide valve 16a End surface side of slide valve 16b Side surface of slide valve 17 Biasing means 18 Spring 19 Coil spring

Claims (5)

[Claims] 1. A respiratory mask (3) blown from a bellows (1) through a ventilation pipe (2), and is opened in the mask (3) on an enclosure wall (3a) of the respiratory mask (3). And a wall (4a) of the valve chamber (4).
An exhaust port (5) and an air supply port (6) are provided at the front end, and a tip (2a) of the ventilation pipe (2) is connected to the air supply port (6). Is provided with an exhaust valve (7) and an air supply valve (8) is provided at the air supply port (6), and either the exhaust valve (7) or the air supply valve (8) is opened. And a respiratory mask valve device for a bellows type respirator, which is connected via a link mechanism (9) for closing the other valve. 2. An exhaust valve (7) and an air supply valve (8) are fixedly mounted on a pivot (10) which is pivotally supported on a wall (4a) of a valve chamber (4) by a link mechanism (9). When the exhaust port (5) is closed by the exhaust valve (7), the intake valve (8) of the intake port (6) is opened, and the exhaust valve (7) of the exhaust port (5) is opened. 2. The respiratory mask valve device for a bellows type respirator according to claim 1, wherein the air supply opening (6) is closed by the air supply valve (8) when the opening is opened. 3. A support section (1) provided on a wall surface (4a) of a valve chamber (4) and having a bearing hole (11).
2) through a connecting shaft (13) connecting an exhaust valve (7) and an air supply valve (8), and when the exhaust port (5) is closed by the exhaust valve (7), the air is supplied. When the air supply valve (8) of the air port (6) is open and the exhaust valve (7) of the air outlet (5) is open, the air supply port (6) is closed by the air supply valve (8). 3. The device according to claim 1, wherein the device is closed.
A respiratory mask valve device for a bellows type artificial respirator according to item 5. 4. An exhaust valve (7) and a supply of air to a slide valve support (15) having a slide surface (14) provided in a wall surface (4a) of a valve chamber (4) by a link mechanism (9). Valve (8)
And the slide valve (16) integrated with the end face (1).
6a), the air supply valve (8) is attached to the air supply port (6), and the exhaust valve (7) is attached to the side surface (16b) of the air supply port (5). When closed by the exhaust valve (7), the air supply valve (8) of the air supply port (6) is opened,
The air supply port (6) is closed by the air supply valve (8) when the exhaust valve (7) of the air outlet (5) is open. Respiratory mask valve device for bellows type artificial respirator. 5. The bellows according to claim 1, further comprising an urging means (17) for urging the exhaust valve (7) in a direction in which the exhaust port (5) opens. Respirator valve device for portable respirators.