JP2773099B2 - Medical oxygen-enriched gas supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical oxygen-concentrated gas supply apparatus, and more particularly to an improvement of a PSA (pressure fluctuation adsorption) -type medical oxygen-concentrated gas supply apparatus used for home therapy for patients with respiratory failure.

[0002]

2. Description of the Related Art A PSA-type medical oxygen-enriched gas supply device used for home therapy of a respiratory failure patient (hereinafter, referred to as a patient) can obtain a very dry oxygen-enriched gas (hereinafter, referred to as oxygen gas). When the patient inhales and breathes the oxygen gas directly for a long period of time, the nasal mucosa dries and complains. For this reason, in many cases, a humidifier that humidifies the oxygen gas by passing it through a container containing water is attached to the discharge port of the medical oxygen-concentrated gas supply device.

[0003] The method of connecting this humidifier to the outlet of the medical oxygen-concentrated gas supply device is as follows. The humidifier itself is hung in the air by a method of directly attaching it to a conduit means for taking out the oxygen gas obtained by the gas supply device with a fukuro nut type joint.

Each time the humidifier water is replaced or refilled, it is necessary to perform operations such as positioning, inserting, screwing, and attaching and removing the pipe. Further, the humidified oxygen gas is protruded from a lid of the humidifier, and is directly connected to a bamboo-shaped joint formed by connecting a tube for connecting a cannula or the like. For this reason, when pouring water into the humidifier, remove the screw of the humidifier by turning it,
It is necessary to refill the water and re-attach it to the medical oxygen-enriched gas supply and connect the cannula tubing.

[0005] In particular, the medical devices used by the patients are used continuously for a long period of time regardless of day or night. For example, the humidifier is removed daily at least once a day. In addition, mounting is a heavy burden on patients with weak physical strength.

[0006] In order to improve this point to some extent, there is also provided a special coupler means for connecting the pipe for introducing the oxygen gas. However, this also reduces the weight of the pipe connection and the humidifier. However, the alignment with the coupler, that is, the operation of aligning the male and female positions of the medical oxygen-enriched gas supply device and the coupler of the humidifier and pushing in and joining them becomes worse. For some older patients, this is still not enough improvement.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem. That is, an object of the present invention is to provide a medical oxygen-enriched gas supply device in which the installation and removal of a humidifier is extremely simple.

[0008]

Means for Solving the Problems As a result of diligent research for achieving the object, it has been found that it is effective to connect the humidifier to the medical oxygen-enriched gas supply device by a special connecting means. Heading, the present invention has been reached.

That is, the present invention has the following configuration. In a medical oxygen-enriched gas supply device including a generation unit that generates an oxygen-enriched gas, a humidifier that humidifies the oxygen-enriched gas, and a supply unit that provides the oxygen-enriched gas humidified by the humidifier for use, The medical oxygen-concentrated gas supply device is provided with a humidifier accommodating section having a coupling support for accommodating the humidifier and coupling with the humidifier. Two pipe connecting portions of a conduit means from the generating means and a conduit means to the supply means are provided as coupling means for performing the coupling, and the humidifier is coupled to the medical oxygen-enriched gas supply device. The connecting hole for the oxygen-enriched gas and the outlet for the humidified oxygen-enriched gas are provided as coupling means, and the shape of the humidifier and the shape of the guide of the humidifier accommodating portion are mutually set in the humidifier accommodating portion. In connection with the connection of the humidifier The means constitutes a guide which is uniquely determined at a predetermined position, and after the humidifier is mounted along the guide and positioned at a predetermined position, the connecting support is moved to move the humidifier between the two connecting means. After the pipes have been connected, a connecting and holding mechanism for holding the connected state is operated, and the connecting and holding mechanism is released by operating an opening knob to constitute a medical oxygen-enriched gas supply device. .

That is, since the introduction plug 13 which is a conduit means from the means for generating oxygen gas and the lead-out plug 11 which is a conduit means to the supply means are connected to the humidifier 1, the effect of the guide is more accurate. Out of position, and then a conduit means from the generating means and a conduit to the supplying means movably constructed by operating a set knob 15 provided in the humidifier housing of the medical oxygen-enriched gas supply device. The pipe connection part which is fixed to the connection support base 19 in a shape corresponding to the positions of the lead-out plug 11 and the lead-in plug 13 respectively comes close to the lead-out hole 9 and the lead-in hole 10 provided in the humidifier. The present invention provides a medical oxygen-enriched gas supply device characterized in that the pipes are connected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. It should be noted that FIG.
The configuration of the medical oxygen-concentrated gas supply device body of the system is not shown, and only the configuration of the humidifier and the humidifier accommodating portion, which is unique to the present invention, is shown. FIG. 1 is a longitudinal sectional view showing a preferred embodiment of the present invention. In the medical oxygen-enriched gas supply device, the shape of the humidifier and the shape of the guide of the humidifier storage portion are connected to each other in the humidifier storage portion that stores the humidifier, and the humidifier connection portion is connected in the axial direction. It constitutes a guide whose position and position in the rotational direction are uniquely determined.
That is, the humidifier 1 provided in the medical oxygen-concentrated gas supply device is connected to the guide 3 for positioning the humidifier accommodating portion.
When the head of the humidifier 1 is fully inserted with the head of the humidifier 1 placed on the guide claw 31 of the zero, the four corners of the head of the humidifier 1 are positioned at the four corners. The humidifier 1 may fit into the humidifier 1.
The position of the oxygen gas introduction hole 10 and the oxygen gas introduction hole 9 provided in the head and the introduction plug 13 set on the coupling support base 19
And the lead-out plug 11 are configured to have the same axial position.
The introduction plug 13 and the extraction plug 11 are connected to oxygen gas generating means and oxygen gas supplying means by plastic flexible hoses 24 and 25, respectively. The connecting support 19 is lifted upward by a spring 23, and the humidifier 1 is set.
Is pressed in the direction of the humidifier, the introduction plug 13 and the introduction hole 1 are pressed.
0, the lead-out plug 11 and the lead-out hole 9 are fitted to each other, and a seal packing 14 attached to the lead-in plug and the lead-out plug, respectively.
And airtight at 12.

At this time, the coupling holding mechanism for maintaining the coupling state is operated, so that the oxygen gas is introduced into the humidifier and the humidified oxygen gas is smoothly extracted. One example of this coupling and holding mechanism is that a stop fitting 28 having an opening knob 16 is rotatably mounted on a shaft 17 at a support fitting 18 attached to a ceiling of a humidifier accommodating portion of a medical oxygen-concentrated gas supply device. ing. This is the stop hole 2 of the stop plate 26 attached to the connection support 19 as the connection support 19 descends.
7, the tip of the stopper 28 is fitted, and the introduction plug 1
3. The lead-out plug 11 is suspended in a state of being fitted into each corresponding hole. As shown in FIGS. 2 and 3 of the present embodiment, the shape of the humidifier head is desirably a shape that cannot be inserted by mistake.

As a result, the oxygen gas generated by the oxygen gas generating means is sent from the introduction plug 13 to the introduction hole 10 through the flexible hose 25. Introduction plug 1
3 and the introduction hole 10 are air-tightly connected by a seal packing 14, so that the oxygen gas does not leak without passing through the oxygen passage 5 of the oxygen introduction pipe 4 and the fine air bubble generating section 6 and the humidifier 1 Comes up in the upper space of the inner cylinder 3 as bubbles from the water 8 contained in the water. During this time, the oxygen gas is humidified to approximately 60 to 90%.

The humidified oxygen gas passes through the outlet hole 9 and
It is sent to the medical oxygen-enriched gas supply device via the outlet plug 11 and the flexible hose 24, and is sent to the patient's nostril via the cannula hose.

To remove the humidifier, when the release knob 16 of the coupling and holding mechanism is pressed, the tip of the stopper 28 is disengaged from the retaining hole 27 of the retaining plate 26 and is pulled up by the force of the spring 23 to release the coupling. You.

It is to be noted that there is essentially no change when a plug is attached to the humidifier and a hole is provided on the side of the coupling support base, or when the humidifier is moved and coupled. Further, in the present embodiment, the moving force for the connection is manually (manually), but may be performed using the power of a motor or the like. Further, even if the relationship between the humidifier accommodating portion and the humidifier is different from the shape of the present embodiment, there are many possible shapes of the guide for matching and matching the positions of the coupling portions. It may be. FIG. 3 shows another embodiment. The coupling support is configured to be able to move in the lateral direction with the axial direction of the coupling portion being perpendicular to the axial direction of the humidifier container, and a hole is provided in the lateral direction of the head of the humidifier.

The medical oxygen-enriched gas supply device of the present invention comprises:
A humidifier as described above is provided in addition to the means for generating oxygen gas and the means for supplying this oxygen gas for use. The means for generating oxygen gas is an oxygen gas having an oxygen concentration higher than that of air or a gas mainly composed of oxygen or the like, and a means for generating oxygen having low relative humidity at room temperature, for example, about 30% or less. To tell.

Specific examples thereof include those using one kind of a PSA-type medical oxygen-enriched gas supply device, an oxygen cylinder, a means for obtaining pure oxygen gas from liquid oxygen, and a combination thereof.

The oxygen-enriched gas supply system for medical use of the PSA system obtains oxygen gas from the air using an adsorbent having a difference in adsorption capacity between oxygen and nitrogen. At this time, water is also separated. Since this oxygen gas is dried, it is necessary to add a humidifier. Also, when obtaining pure oxygen gas from an oxygen cylinder or liquid oxygen, it is usually necessary to provide a humidifier.

As a specific example of the medical oxygen-enriched gas supply apparatus which is one of the preferred embodiments of the present invention, one or more adsorption beds filled with an adsorbent for selectively adsorbing nitrogen gas are added to the adsorption bed. Compressor means for flowing compressed air, and conduit means for extracting oxygen gas from the adsorbent bed and flowing the gas to a discharge port.
A PSA-type medical oxygen-enriched gas supply device in which more than one adsorption bed is operated so as to repeat a pressurization-decompression cycle singly or alternately. It is desirable that any medical oxygen-enriched gas supply device has a means for adjusting the flow rate of oxygen gas to be used.

Further, according to the present invention, in a means for generating oxygen gas, particularly in a medical oxygen-concentrated gas supply device, a position is determined by placing a humidifier along a guide in an oxygen gas outflow conduit obtained as described above. Then, the connection support is moved to perform the connection. Also,
Detachment releases the connection simply by operating the release knob. Therefore, the operability of operation can be further improved by facilitating attachment and detachment of the humidifier.

Further, the type of supply means for using oxygen gas in the present invention may be of any type, and specific examples thereof include a nasal cannula type in which the tip of a thin tube is inserted into the nasal cavity and a mask type. Can be

[0023]

The medical oxygen-enriched gas supply device of the present invention simply positions the humidifier along the guide,
The installation and removal of the humidifier is very simple by moving the introduction plug and the extraction plug attached to the connection support and connecting the two connection means, and particularly, a PSA-type medical oxygen-enriched gas supply. In the case of the device, there is an advantage that the burden on the user is small.

[Brief description of the drawings]

FIG. 1 relates to a preferred embodiment of a medical oxygen-enriched gas supply device of the present invention, in which a portion connecting a humidifying means using a coupler is connected to a connecting support and a humidifier by connecting a pipe and a plug to each member. It is the figure shown using the longitudinal cross-sectional view of FIG.

FIG. 2 is an explanatory perspective view of the embodiment of FIG. 1, in which the moving mechanism of the coupling supporter shown from above is not shown.

FIG. 3 is a perspective view of another embodiment in which a moving mechanism and a holding mechanism of a connecting support stand are omitted from illustration. In each of the drawings, only the main parts are shown, and some of them are not shown.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Humidifier 2 Humidifier container 3 Inner cylinder 4 Oxygen introduction pipe 5 Oxygen path 6 Fine bubble generation part 8 Water 9 Lead-out hole 10 Introduction hole 11 Lead-out plug 12, 14 Seal packing 13 Introduction plug 15 Set knob 16 Opening knob 17 Shaft 18 Support Metal fittings 19 Coupling support 23 Spring 24, 25 Flexible hose 26 Stop plate 27 Stop hole 28 Stop fitting 30 Guide 31 Guide claw

Claims (1)

(57) [Claims] 1. A medical oxygen concentrator comprising a generating means for generating an oxygen-enriched gas, a humidifier for humidifying the oxygen-enriched gas, and a supply means for supplying the oxygen-enriched gas humidified by the humidifier for use. In the gas supply device, the medical oxygen-concentrated gas supply device is provided with a humidifier accommodating portion having a coupling support for accommodating the humidifier and coupling with the humidifier. A pipe connecting means for connecting the pipe to the humidifier and a pipe connecting means for connecting the pipe to the supply means, and the humidifier is connected to the medical oxygen-enriched gas supply device. The inlet for the oxygen-enriched gas and the outlet for the humidified oxygen-enriched gas are additionally provided as coupling means for coupling with the humidifier. The shapes are interrelated The connecting means of the humidifier constitutes a guide which is uniquely determined at a predetermined position, and the humidifier is mounted along the guide and positioned at a predetermined position. After the two pipes of the connecting means are connected, the connecting and holding mechanism for holding the connected state is operated, and the connection and holding are released by operating the release knob. Medical oxygen-enriched gas supply device.