DE2055679A1 - Atomizer - Google Patents

Description

5th November 1970
Gu / gm

Respiratory Care, Inc 2420 East Oakton Street Arlington Heights, Illinois

Atomizer

The invention relates to an atomizer such as that in particular is used for therapeutic inhalation. In detail, the invention relates to a special training on the adapter of such an atomizer to the liquid container. .

Inlialation therapy is the treatment with oxygen carried out with a high moisture content. There are different groups of devices for this purpose, one of which is Includes atomizer.

In an earlier patent application, a device system for use in inhalation has already been proposed which has a water tank that can be operated in several ways. A connector with a venturi nozzle causes the container to be converted into a reservoir for an atomizer, with the connector itself atomizing V / ater forwards. In this already proposed atomizer (German patent application P 20 49 932 .5) however, a certain proportion of the withdrawn water is not atomized into mist or condensed after atomization on Connection piece itself. Furthermore, there is no provision there for the further use of the non-atomized water.

The invention proposes an improved nebulizer. It is the object of the invention to form an improved connector with which a water container as Equipped with an atomizer, the condensate should also come from a mist, which is produced in particular by a Venturi nozzle.

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can be removed. This will make the Improved the quality of the fog generated.

Furthermore, the condensate should be fed back to the liquid reservoir. ■.

To solve this problem, the invention is based on one Atomizer, the mist-forming part of which has a venturi nozzle, which is in a body with a chamber with an outlet opening for the mist is provided. According to the invention it is proposed that a device be provided which draws the liquid A accumulated in the chamber away from the body. ,

In detail, the nebulizer has a dispensing tube that picks up liquid or mist from the venturi nozzle. A The wall section of the delivery tube has a drainage channel through which the chamber or chamber arrangement is drained. An opening is provided in the wall, through which the channel is in turn drained.

The invention is explained in more detail below using an exemplary embodiment. There are more important features of the invention from the following example description. It shows:

Fig. 1 is a vertical section through an atomizer according to the invention, with only the upper part of a is shown connected to a connector container; .

2 shows a view of the outlet or. Dispensing part of the connector in a view from the right in Fig.l and

3 shows a section along the line 3/3 of FIG • a perforated plate is visible.

In Fig. 1 there is shown one end of a container, generally designated 10, made of semi-rigid material may be and extends generally vertically. Of the

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Container 10 has a body 12 with a chamber 14 which defines a reservoir for water 16. One approach 18, which represents an upper, receding end part of the body 12, serves as a transition piece at its tip a head 20 is formed in one piece. An inlet device having a conduit 22 is integral with the head 20 formed and extends vertically upward. At the inlet part of the line is a flexible sealing washer, Membrane or diaphragm 24 mounted with the sealing washer is broken away in the illustration of FIG. 1 so that the container is in fluid communication with an oxygen source, which is not shown, is available.

A septum 26 formed integrally with the body and disposed within the body is defined a conduit 28 which also extends generally vertically. This partition separates the chamber 14 from the Line 28. Its lower, not shown end, however, just above the container bottom, so that the chamber there 14 and the line 28 are connected to one another in the manner of communicating tubes. The upper part of the septum extends obliquely through the chamber and the approach 18. It is designed so that between the line 22 and the line 28 a channel for flowing gas is formed. An opening 30 in the upper end portion of the septum connects again the upper end part of the chamber 1.4 with the line 22. Without this opening 30, the partition would be the upper end part isolate the chamber from line 22.

With this construction, the container 10 can be used as a reservoir for a humidifier, as here however, is not shown. It can also serve as a reservoir for an atomizer, as will be explained in more detail below is described. This double use is in the specified German patent application P 20 49 , 932.5 explained in more detail.

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A nipple 32 for the return of water is also in one piece formed with the approach 18 and is preferably located above the top level 33 of the Chamber 14 contained water 16. The * -nipple 32 contains in addition, a vent through which gas is supplied, thereby increasing the volume of liquid withdrawn from the chamber is replaced in a manner that will be explained in more detail below.

A connector or adapter 34 of the atomizer has a body 36, which is preferably made of rigid plastic. A vertically oriented lower bushing 38 is formed in this body and has a thread 40. This internal thread cooperates with an external thread 42 formed on the conduit 22. This allows the adapter to be mounted on the container 10. An upper socket part 44 with a further internal thread is located above the socket part 38 in the body 36 and can receive a plug part of a supply device for oxygen, which is not shown. Thus, the adapter 34 is connected to a pressurized oxygen source ¹ material.

The socket part 38 is limited by an upper wall 46,. which has an upwardly extending portion 48 with a pocket 50. An auxiliary tool 52 for breaking open the gasket has an upper end which is snugly fitted into the pocket 50. A thorn-like part 54 can Rupture seal 24 and extend into conduit 22 when adapter 34 is connected to container 10. One vertically and axially extending conduit 62 for the water 16 extends through the auxiliary tool 52.

The top wall 56 of the cylindrical portion 48 defines the lower wall of a venturi nozzle 58 which is integral with the adapter 34 in a central part of the body 36 between the Connecting or socket parts 28 and 44 is formed,

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ne vertical Venturi line 60, which runs through the viand 56 extends, connects the reservoir 16 through the line 62 with an undercut or opening line 64 the venturi that extends horizontally through this nozzle.

Inlet port 66 of line-64 opens into a chamber 68 within the body 36 and is in communication with the socket part 44, through an opening 70 in the lower part of the socket part.

The outlet opening 72 of the Venturi nozzle is in communication with an outlet element, namely an outlet pipe 74, the is integrally formed with the adapter 34 as a substantially cylindrical part.

The axis of the dispensing tube 74 extends perpendicular to the Axis of the body 36 and is horizontal in the operating position arranged as it is also Pig. I shows.

Oxygen introduced under pressure into the adapter 34 is directed through the venturi nozzle through the conduit 64. Through this a negative pressure is created in part 58, which removes water the chamber 14 sucks into the gas stream, so that the water is driven through the opening 72 into the delivery pipe 74 as a mist.

The delivery tube 74 is internally stepped and has an inner, smaller sub-chamber 76 and an outer, larger one Partial chamber 78, which extend from a one-piece annular shoulder 80. These sub-chambers are horizontally aligned with one another, and are preferably arranged concentrically with respect to the longitudinal axis of the horizontal venturi line 64. The outlet opening of the conduit 64 opens into the sub-chamber A perforated part, which in the embodiment shown is designed as a circular disc 82 with a plurality of pores 84, separates the two sub-chambers from one another. Only a few of the pores 84 are shown. This perforating

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te part is located in the chamber 78 and _{rests firmly on the shoulder 80 perpendicular to the f} axis of the delivery tube 74. It separates the two chambers from one another and at the same time maintains a connection between the two chambers or sub-chambers through the pores or openings.

A baffle or guide plate, which is designated as a whole by 86, is at an axial distance from the Disc 82 and partly closes the outlet opening of the delivery tube 74. This guide plate has a closure part 88 and an upper arcuate outlet slot or opening '90, through the partial chamber 78 with the exterior of the adapter 34 communicates. '

The wall of the delivery tube 74 has a lower channel or a gutter 92 extending between shoulder 80 and baffle 86 and into chamber 78 opens. This channel is open at the top and extends in the axial direction of the tube 74. A line 94 with a flexible pipe 96 connects the channel 92 through the wall of the pipe 74 to the nipple 32 so that the water can return from the sub-chamber 78 to the reservoir 14.

Water particles that are not retained by the disc 82 are passed through the pores by the working pressure 84 pressed from the sub-chamber 76 into the sub-chamber 78. Water, that is condensed upstream of the disk 82, collects at the bottom of the chamber 76. If the level of this When the accumulated water reaches the lowermost pores 84, it flows into the chamber 78 and from there into the channel 92. In the chamber 78, the water particles which are too heavy for an upward flow strike against the closure 88 and collect together with other condensate in channel 92. '

The line 94 not only carries water from the sub-chamber 78 to the container 10, but also ensures a pressure output

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right inside the container, making Yfesser continuous can be deducted.

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Claims (1)

Nov. 5, 197O 'O Respiratory Care, Inc. Gu / gm ^β Claims ■ Atomizer, the mist-forming part of which is a venturi; Has nozzle provided in a body with a chamber with an outlet opening for the mist, thereby characterized in that means are provided which the liquid accumulated in the chamber (76,78) from Body (36) pulls off. 2. Atomizer according to claim 1, characterized in that the device has a chamber wall (74) with an opening owns. · 3. Atomizer according to claim 2, characterized in that the chamber has a first and second sub-chamber (76,78), of which the first (76) downstream of the Venturi-D'Jse (58) and the second (78) downstream of the first chamber (76) is arranged, and that a collecting device (82) is provided in one of the sub-chambers (76,78), the liquid upstream of the second chamber (78), and which has openings (84) through which Nobel and captured Liquid can flow from the first sub-chamber (76) to the second sub-chamber (78). , 4. Atomizer according to claim 1 to 3, characterized in that * that a deflector (86) is provided which prevents some of the liquid in the second chamber ". (78) flows through the outlet opening. 5. ■ atomizer according to claim 1 to 4, characterized in that that the chamber (76,78) comprises a dispensing tube (74) which Absorbs mist from the venturi nozzle (58), and that the trigger device has a V / and section of the delivery tube (74) comprises a channel (92) for draining the chamber and a drainage opening which extends through the wall 109848/1118 BAD ORlQiNAl stretches and is connected to the channel (92). 6. A nebulizer according to claim 5, characterized in that the first and second sub-chambers (76, 78) are axially in the delivery tube 674) are aligned with one another so that the first sub-chamber (76) absorbs mist from the Venturi nozzle (58), and that the second sub-chamber (78) has the outlet opening and is designed such that it is the first sub-chamber (76) dehydrated. 7. Atomizer according to claim 6, characterized in that a perforated inner collecting device (82) is provided in the currents Λ mungsweg in the chamber (76,78). 8. An atomizer according to claim 7, characterized in that a deflection device (86) is provided in the dispensing tube (74), which diverts the liquid from the outlet opening (90) partially to the channel. 9. Atomizer according to claim 5, characterized in that the dispensing tube (74) has a horizontal axis, and that the channel (92) extends parallel to the axis. 10. Atomizer according to claim 9 »characterized in that. a line (94) is provided which connects the body (36) with ™ connects to the reservoir (14) of the atomizer. 11. Atomizer according to claim 1 to 10, characterized in that that connections (38,44) are provided for connecting the body (36) to a water and oxygen reservoir. 12. Atomizer according to claim 11, characterized in that the connections (38,44) are vertically aligned, socket-like nipple parts. The patent attorney: 109 848/1118 Blank page