JPH08317982A - Apparatus for supplying respirating air - Google Patents

Abstract

PURPOSE: To readily meet a case necessitating a higher flow rate than the maximal flow rate of one oxygen concentrator etc. CONSTITUTION: An apparatus comprises plural means of generating respirating gas, a means of supplying aspirating gas to a user and connecting pipes to connect the generating means with the supplying means wherein each of the generating means is connected to the supplying means through individual conduit pipes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying breathing gas, which is provided with an open-type supply means for breathing gas for supplying breathing gas to a user. Particularly preferably,
A nasal cannula and mouth mask for supplying breathing gas, wherein a user who needs a large flow rate or more than the maximum generation flow rate of a single source of breathing gas needs more than one breathing gas. The present invention relates to a device for supplying a respiratory gas which is necessary when the respiratory gas is supplied from a source.

[0002]

2. Description of the Related Art Conventionally, in a device for supplying breathing gas using an open-type supply means for breathing gas such as a nasal cannula and a mouth mask used in oxygen therapy performed for patients with respiratory diseases, Since the supply means can be connected to only one breathing gas generating means, the user can supply the breathing gas only within the range of the flow rate of the breathing gas generated by the one breathing gas generating means. I couldn't receive it.

Further, the supply means has a plurality of connection means,
Even when it can be connected to a plurality of breathing gas generating means, the first extending conduit means and the second extending conduit means are connected to the conduit means A through a connector as shown in FIG. 1 and used by the supplying means. Breathing gas is supplied to the person. In this case, the flow rate of the breathing gas is throttled in the connector and the conduit means A portion and becomes a resistance of the flow path, which causes a difficulty of decreasing the flow rate. In order to solve such a difficulty, it is necessary to increase the flow passage cross-sectional area of the conduit means A, so that the dimension of the conduit means A becomes large. Or, it is necessary to manufacture connector parts suitable for it.

Further, in such a device, in a device for supplying a breathing gas having a demand valve in the breathing gas generating means, there is a problem that the demand function may not work sufficiently.

For example, in the apparatus shown in FIG. 1, the pressure fluctuation detecting means for detecting the pressure fluctuation in the conduit means in the individual breathing gas generating means and the breathing phase of the patient are grasped from the detection result, and breathing is performed only during inspiration. When a demand valve having a structure for supplying a working gas is provided, a difference in sensitivity of the pressure sensor of the pressure fluctuation detecting means causes a difference in operation of the demant valve, which makes it difficult to supply gas suitable for breathing. .

Further, in the apparatus of FIG. 1, temperature fluctuation detecting means for detecting the temperature fluctuation in the conduit means for each breathing gas generating means and the breathing phase of the patient are grasped from the detection result and breathing is performed only during inspiration. Even when the demand valve having a structure for supplying the working gas is provided, the operation of the demant valve varies due to the difference in the sensitivity of the temperature sensor of the temperature fluctuation detecting means, and it becomes difficult to supply the gas suitable for breathing.

[0007]

DISCLOSURE OF THE INVENTION The present invention is an apparatus for supplying breathing gas, in which a user supplies a breathing gas at a high flow rate exceeding the range of the flow rate of breathing gas generated by one breathing gas generating means. The purpose is to receive the supply of breathing gas from a plurality of breathing gas generating means when needed.

Another object of the present invention is to enable a gas supply adapted to respiration when a demant valve is used, especially when used with a pressure sensor or a temperature sensor.

[0009]

DISCLOSURE OF THE INVENTION The inventors of the present invention have conducted extensive studies in order to achieve such an object, and as a result, as a result of supplying breathing gas from a plurality of breathing gas generating means, A device was devised and arrived at the present invention.

That is, the present invention comprises a plurality of breathing gas generating means, a breathing gas supplying means for supplying the breathing gas to a user, and a conduit means connecting the generating means and the supplying means. A device for respiratory gas supply, characterized in that it is connected to the supply device from each of the generating means via a separate conduit means.

In the present invention, at least one of the plurality of breathing gas is provided with a demand valve for supplying the breathing gas only when the user inhales the device for breathing gas supply. Is included.

The demand valve has a structure in which the valve is opened and closed in a certain cycle to supply breathing gas,
It includes a pressure fluctuation detecting means capable of detecting the breathing phase of the user from the pressure fluctuation in the conduit, and supplies the breathing gas only at the time of inspiration based on the detection result. Further, the demand valve has pressure fluctuation detecting means capable of detecting a breathing phase of the user from temperature changes in the conduit and the breathing gas supply means, and breathing is performed only during inspiration based on the detection result. Those that supply gas are included.

The number of a plurality of breathing gas generating means used in the present invention is preferably 2 or 3, and particularly 2
Individuals are preferred.

The conduit means used in the present invention requires at least a length for connecting the user and the breathing gas generating means, and when the user works away from the generating means, the conduit means has such a long length. In addition to using the conduit of the length, it is also possible to connect and use the conduit means for extension.

In the apparatus of the present invention, it is desirable to use a conduit for preventing bending or crushing as the conduit means.

Specifically, the wall thickness of the conduit means is increased to have strength, the conduit means is reinforced by using a composite material containing reinforcing fibers in the meat, and the cross-section of the protrusion structure is formed inside the conduit means. Using a conduit with a non-circular cross section, or using a conduit with a reinforcing material such as metal or resin attached to the outer diameter side of the conduit means, or locally strengthening the component connection part to improve strength It is also possible to do. Particularly, the connecting portion is locally reinforced, and at least one projecting portion extending inward in the longitudinal direction is formed, preferably 1 to 6, more preferably 1
-4 conduit means provided are preferred.

The material of the conduit means is fluororesin,
A resin material such as nylon resin, polyvinyl chloride, or polyurethane, or a metal material, or a combination of plastic and metal is preferable.

The breathing gas in the present invention may be any gas used for breathing, such as air, but normally an oxygen enriched gas or oxygen gas is used.

Preferable specific examples of the breathing gas generating means in the present invention include an oxygen concentrator capable of recovering an oxygen concentrated gas from air, a device for generating oxygen gas from liquid oxygen, an oxygen gas cylinder and the like. Examples of the oxygen concentrator include an adsorption type oxygen concentrator and a membrane type oxygen concentrator. Above all, a pressure fluctuation adsorption type oxygen concentrator using an adsorbent capable of selectively adsorbing nitrogen is preferable.

Specific examples of the breathing gas supply means of the present invention include an open-type supply means for breathing gas such as a nasal cannula and a breathing gas supply means such as a mouth mask. One that can be easily used when receiving the supply of the breathing gas from the gas generating means.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A specific embodiment of the device for supplying respiratory gas of the present invention will be described with reference to the drawings. However, the present invention is not limited to these examples.

The apparatus of the present invention in FIG. 2 is of an open type supply system for breathing gas when the breathing gas is supplied from the breathing gas generating means consisting of two pressure swing adsorption type oxygen concentrators. is there.

The apparatus of the present invention shown in FIG. 3 is an open type of breathing gas when the breathing gas is supplied from the breathing gas generating means which are two pressure fluctuation adsorption type oxygen concentrators having demand valves. It depends on the supply method.

The apparatus of the present invention shown in FIG. 4 is a breathing gas when the breathing gas is supplied from two breathing gas generating means, which are pressure fluctuation adsorption type oxygen concentrators, through an extension conduit means. The open supply method of.

[0025]

According to the device for supplying breathing gas of the present invention, the user simultaneously receives a large volume of breathing gas from a plurality of breathing gas generating means without a decrease in flow rate. It has an excellent effect that makes it possible.
In addition, since the gas is supplied from multiple breathing gas generation means via separate conduits, even if the supply from one conduit is stopped for some reason, such as when the conduits become clogged, etc. It has the effect that it can be supplied.

[Brief description of drawings]

FIG. 1 is an illustration of a device for conventional breathing gas delivery.

FIG. 2 is an illustration of an apparatus for respiratory gas delivery of the present invention.

FIG. 3 is an illustration of an apparatus for respiratory gas delivery of the present invention.

FIG. 4 is an illustration of an apparatus for respiratory gas delivery of the present invention.

Claims (5)

[Claims] 1. A plurality of breathing gas generating means, and breathing gas supply means for supplying the breathing gas to a user.
An apparatus for supplying breathing gas, which comprises conduit means connecting the generating means and the supplying means, characterized in that each of the generating means is connected to the supplying device via a separate conduit means. Equipment for the supply of breathing gas. 2. Two breathing gas generating means, and breathing gas supply means for supplying the breathing gas to a user,
An apparatus for supplying breathing gas, which comprises conduit means connecting the generating means and the supplying means, characterized in that each of the generating means is connected to the supplying device via a separate conduit means. Equipment for the supply of breathing gas. 3. The breathing apparatus according to claim 1, wherein at least one of the breathing gas generating means includes a demand valve for supplying the breathing gas only when a user inhales. Equipment for supplying gas for use. 4. The demand valve has a pressure fluctuation detecting means capable of detecting a breathing phase of a user from the pressure fluctuation in the conduit, and supplies a breathing gas only during inspiration based on the detection result. Device for the supply of respiratory gas according to claim 3. 5. The demand valve has pressure fluctuation detecting means capable of detecting a breathing phase of a user from temperature changes in the conduit and the breathing gas supply means, and breathes only at the time of inspiration based on the detection result. The device for supplying breathing gas according to claim 3, wherein the device is a structure for supplying a working gas.