KR20010025587A - Humidifier with oxygen flowmeter - Google Patents

Abstract

PURPOSE: A humidification device combined with an oxygen flow meter is provided to always supply oxygen having a high percentage of humidity to a patient requiring the oxygen inhalation treatment. CONSTITUTION: A humidification device combined with an oxygen flow meter consists of a flow meter part(A) and a humidifier part(B). The flow meter part comprises a flow rate gauge(1), a gauge cover(2), a body(3), a flow rate regulator(4), and an adaptor(5). The humidifier part comprises a connector(6), a bubble jet switching lever(7), a safety valve(8), a humidification container(9), a siphon tube(10), a diffuser(11), and an outlet(12). As the bubble jet switching lever is rotated in left and right directions, an opening and closing valve is actuated, and an opening and closing ball stacked on a spring opens and closes the lower part of a nozzle tip. In this way, the humidification device selectively uses a bubble mode and a jet mode by applying a venturi tube, thereby the oxygen of appropriate humidity being supplied to a patient according to the condition of the patient.

Description

Humidifier with oxygen flow meter {HUMIDIFIER WITH OXYGEN FLOWMETER}

The present invention relates to an oxygen flow meter-coupled humidifier as a respiratory assisted medical device capable of supplying oxygen to a patient in need of inhalation from a terminal port of a medical gas piping facility or a portable oxygen cylinder in a hospital or an ambulance. Oxygen flowmeter combined humidification mechanism consisting of a flow meter part consisting of a body, a flow control mechanism and an adapter, a connector, a bubble jet switching lever, a safety valve, a humidification container, a siphon tube, a diffuser, and a discharge part of the humidifier. Consideration is given to the selective use of two methods, bubble mode and jet mode, to supply the patient with oxygen at different humidity levels (Rh21% to 70% / 36.5 ° C), depending on the patient's condition.

In general, oxygen flow meter-coupled humidifiers, which are used for oxygen inhalation treatment to patients in emergency rooms, intensive care units, hospitals, and ambulances, are used to dry dry oxygen in gaseous form from the terminal port of a medical gas piping facility or a portable oxygen cylinder (aka bomb). Through the flow meter consisting of a flow meter unit and a humidifier unit is supplied to supply the humidified oxygen with constant humidity to the patient.

For example, as shown in Fig. 7 is a perspective view of the state of use of such a conventional oxygen flow meter coupled humidification mechanism, the flow rate gauge 31, the gauge cover 32, the flow control mechanism 33, the adapter 34 and the body ( It is understood that the humidifier is composed of a flow meter part (a) consisting of 35, and a humidifier part (b) consisting of a connector (36), a humidification vessel (37), a duct (38), a diffuser (39), and an outlet (40). Can be.

As shown in FIG. 7, the oxygen in the gas state introduced from the outside through the adapter 34 can be checked by the flow rate gauge 31 while controlling the flow rate adjusting mechanism 33. Through the diffuser 39 contained in the purified water 41 via a cylindrical duct 38 suspended in the humidification vessel 37 via the 35 and the connector 36 and generated as bubbles (foams), Then, humidified oxygen is generated on the surface of purified water 41 and is supplied to the patient through the discharge port 40.

However, such a conventional oxygen flow meter coupled humidification mechanism, the greater the flow rate, the less the time that the fluid can be foamed from the purified water 41, and there may be a limit to the humidity it can contain depending on the time. Since there is no other solution, humidifying oxygen containing a certain level of humidity can be supplied. However, especially in the case of maintaining a high humidity such as a critical patient, there is a drawback in that the structure of the apparatus cannot be supplied sufficiently, and if necessary, a separate humidifying apparatus is used in combination. There was a cumbersome fault that can only be done.

Accordingly, the present invention solves the drawbacks of the conventional oxygen flow meter coupled humidification mechanism, and always provides oxygen of a suitable humidity to a patient who needs to inhale from a terminal port of a medical gas piping facility or a portable oxygen cylinder in a hospital or an ambulance. A respiratory assistive medical device that can be supplied, which consists of a flow meter section consisting of a flow gauge, gauge cover, body, flow control mechanism and adapter, connector, bubble jet switching lever, safety valve, humidification container, siphon tube, diffuser and discharge port. The present invention provides a new oxygen flow meter-coupled humidifier that can supply humidified oxygen with a suitable humidity by selectively using two methods, a bubble mode and a jet mode using a humidifier unit.

1 is a perspective view of the oxygen flow meter combined humidification mechanism of the present invention

Figure 2 is a cross-sectional view of the oxygen flow meter combined humidification mechanism of the present invention

3 is an enlarged cross-sectional view of the portion C of FIG.

FIG. 4 is a detailed explanatory view showing the bubble jet flow path of the nozzle of FIG. 3; FIG.

5 is an oxygen flow diagram when the oxygen flow meter-coupled humidifier of the present invention is used in a bubble mode.

6 is an oxygen flow diagram when the oxygen flow meter-coupled humidifier of the present invention is used in the jet mode.

7 is a perspective view of the use state of the conventional oxygen flow meter combined humidification mechanism

* Explanation of symbols for main parts of the drawings

1 flow gauge 2 gauge cover 3 body

4 flow control mechanism 5 adapter 6 connector

7: bubble jet switching lever 8: safety valve 9: humidification container

10 siphon tube 11 diffuser 12 discharge port

13: nozzle 14: through-hole 15: O-ring

16 connection hole 17 injection space 18 nozzle tip

19: opening and closing ball 20: spring 21: opening and closing valve

22: groove 23: nozzle hole

Hereinafter, the configuration of the present invention through the drawings in detail.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the oxygen flowmeter coupled humidification mechanism of this invention is shown.

As shown in Figure 1, the oxygen flow meter coupled humidification mechanism of the present invention is a flow meter (1), the gauge cover (2), the body (3), the flow control unit (4) and the adapter (5) A) and a humidifier portion B comprising a connector 6, a bubble jet switching lever 7, a safety valve 8, a humidification container 9, a siphon tube 10, a diffuser 11 and a discharge port 12. It can be seen that it is composed of).

Figure 2 is a cross-sectional view of the oxygen flow meter coupled humidification mechanism of the present invention, Figure 3 is an enlarged cross-sectional view of the portion C of Figure 2, Figure 4 is a detailed view of the bubble jet flow path of Figure 3, the humidifier which can be characterized as the present invention The structure of part (B) is well shown.

First, when the oxygen supplied with the safety valve 8 to the right side of the connector 6 is blocked for bending or other reasons such as a hose or a tube installed in the patient, the safety valve operates and the red identification rod vibrates up and down. It generates a warning sound to alert you to an abnormal condition.

In particular, the lower part of the connector 6 is equipped with a venturi tube application device which can be said to be the biggest feature of the present invention, the lower end of the nozzle 13 equipped with a through-hole 14 and the O-ring 15 mounted therein. The nozzle tip 18 is connected to it, and the lower part is equipped with the opening-closing ball 19 and the opening / closing valve 21 which loaded the spring 20 which elastically supports this opening-and-closing ball 19.

The lower end of the nozzle 13 has a nozzle hole 23 narrowed from the through hole 14, and forms a recess 22 tangentially connected in the circumferential direction of the nozzle hole 23 (Fig. 4). ) Is connected to the siphon tube 10 through a connecting hole 16 communicated to the upper right.

Hereinafter, the operating principle of the oxygen flow meter coupled humidification mechanism of the present invention having such a structure will be described.

The dry oxygen introduced through the adapter 5 from the terminal port of the external medical gas piping facility or the mobile oxygen cylinder (not shown) is a flow gauge 1, a gauge cover 2, a body 3, and a flow control mechanism. It enters into the humidifier part B via the connector 6 via (4).

The dry oxygen thus introduced is introduced into the venturi tube application device mounted at the lower portion thereof through the through hole 14 in the nozzle 13, where the open / close valve 21 is rotated by rotating the bubble jet switching lever 7 left and right. ) Is operated so that the opening and closing ball 19 loaded on the spring 20 thereon blocks or opens the lower end of the nozzle tip 18 in two ways, namely, bubble mode and jet mode. The contained humidified oxygen is supplied to the patient through the discharge port 12.

The two methods of bubble mode and jet mode using the venturi tube of the present invention will be described as follows.

Bubble mode

This mode is a general method of supplying humidified oxygen of low humidity by turning the bubble jet switching lever 7 to close the nozzle tip 18 with the opening / closing ball 19. When the lower end of the nozzle tip 18 is closed, The dry oxygen introduced through the through hole (14) through the connector (6) reaches the lower end of the nozzle tip (18) and flows back to the connecting hole (16) along the groove (22) of the nozzle (13). The thin siphon tube 10 and the diffuser 11 at the lower end is diverged and dry oxygen is generated as bubbles containing the moisture of purified water.

As shown in FIG. 5, the oxygen flow rate in the case of using the bubble mode in this way, the dry air supplied to the nozzle 13 through the flow gauge 1, the body 3, and the connector 6 is recessed 22. Through the connection hole 16, the siphon tube 10, and the diffuser 11, moisture-containing bubbles of purified water are generated and thus supplied to the patient as oxygen moistened on the water surface.

2. Jet mode

This mode opens the nozzle tip 18 by turning the bubble jet switching lever 7 again, so that the flow rate is increased when the cross-sectional area through which the fluid passing through the Venturi tube (pipe or channel) is narrowed, and the pressure is lowered. The method of supplying the humidified oxygen of high humidity to the patient by inhaling and finely spraying purified water by the internal structure applying.) When the nozzle tip 18 is opened, the dry oxygen passes through the through hole 14 and the cross-sectional area is narrowed. The speed is increased while passing through the nozzle hole 23 to reach the injection space 17, the fluid velocity is slowed in the injection space 17 between the nozzle tips 18 having a relatively larger cross-sectional area than the nozzle hole 23 And the pressure is lowered.

As a result, purified water is sucked from the diffuser 11 contained in the purified water through the siphon tube 10 and the connecting tube 16, and the sucked purified water flows through the recess 22 formed by tangential contact with the nozzle hole 23 and vortex phenomenon. It is to be injected to the inside of the humidification container 9 by the injection port of the nozzle tip 18 again by the inflow pressure of dry oxygen.

By repeating this process in the jet mode, the entire interior of the humidification container 9 is supplied to the patient through the discharge port 12 in a state of high humidity having a higher humidity than in the case of the bubble mode. The oxygen flow diagram in the case of using the jet mode in this manner is shown in FIG.

As described above, in the present invention, the bubble mode and the jet mode are used together, so that the humidity of 21% / 12 lpm to 45% / 2 lpm (± 10%) is 36.5 ° C. in the bubble mode, and 36.5 ° C. in the jet mode. It is possible to stably supply humidified oxygen containing humidification from 40% / 3 lpm to 70% / 8 lpm (± 10%).

As described above, according to the oxygen flow meter-coupled humidification mechanism of the present invention, a respiratory assisted medical device capable of supplying oxygen to a patient in need of inhalation from a terminal port of a medical gas piping facility or a portable oxygen cylinder in a hospital or an ambulance, etc. It consists of a flow meter part consisting of a gauge, a gauge cover, a body, a flow control mechanism, and an adapter, and a humidifier part consisting of a connector, a bubble jet switching lever, a safety valve, a humidification container, a siphon tube, a diffuser, and an outlet, and a venturi tube. By selectively using two methods, bubble mode and jet mode, it is possible to obtain the effect of supplying oxygen of sufficient humidity to patients smoothly according to the patient's condition, so it is expected to be used and applied in related fields. .

Claims (2)

In the oxygen flow meter coupled humidification mechanism consisting of a conventional flow meter (A) and a humidifier (B), The humidifier part (B) is composed of a connector (6), bubble jet switching lever (7), safety valve (8), humidification vessel (9), siphon tube (10), diffuser (11) and outlet (12). Humidity mechanism combined with oxygen flow meter The method of claim 1, Opening and closing valve 21 is operated by rotating the bubble jet switching lever 7 to the left and right, and the opening and closing ball 19 loaded on the spring 20 to open and close the lower part of the nozzle tip 18 Oxygen flow meter coupled humidification device characterized in that different humidifying oxygen is supplied to the patient through the discharge port 12 in a method