CN208017887U - A kind of suction-type atomizer - Google Patents

Abstract

The application belongs to medical instruments field, it is related to a kind of suction-type atomizer, extraneous air is entered the tubular structure that channel is set to cavity inside by the suction-type atomizer of the application, and the side wall of itself and cavity is made to constitute the open clip cavity in downside, when patient's improper use causes atomizer to roll or be inverted, liquid in liquid storing part can be retained in clip cavity, be overflowed without entering channel from extraneous air.

Description

A kind of suction-type atomizer

Technical field

The utility model is related to a kind of suction-type atomizers, more particularly to a kind of ejection-type atomizer.

Background technology

The aqueous solution of drug or suspension by being dispersed into the easy sucking size being suspended in gas by suction-type atomizer Drug containing aerosol, in such a way that patient sucks being deposited on respiratory tract and (or) lung delivers the drug of therapeutically effective amount, Treatment various respiratory tract disease, especially asthma or the children and gerontal patient of COPD are now widely used in, and are not suitable for it He sucks preparation person.

Suction-type atomizer type is more, including blast atomizer, ultrasonic atomizer and vibrating screen atomizer etc., and in addition one A little novel atomizers are also being studied or are being in clinical test.It is represented with sprayer, ultrasonic atomizer and vibrating screen atomizer Medical atomizer, aerosol generator not only works in patient breaths, also will produce aerosol simultaneously in patient expiration Full of spray chamber, the aerosol generated by aerosol generator is actually only inhaled by a patient in sucting stage, and it is most of then It is condensed into drop on the inner wall of atomizer, and back flows back into liquid storing part.

Research is it has been found that it is beneficial to improving atomizing effect to open extraneous air on the shell of spray chamber to enter channel , the air-flow guiding extraneous air that this method can utilize patient breaths to generate enters in spray chamber, makes air according to atomizer Function and flow, and carry aerosol secretly and enter patient's body.For example, Chinese patent literature CN103041480A discloses one kind The atomising device that gas-flow resistance improves, extraneous air, which enters channel OP1, to be led to air-flow near aerosol generating unit, keep gas molten The aerosol that glue generating unit generates can be more swimmingly toward the flowing of the directions opening OP4.

Other inconvenience, such as patient can be caused to use however, opening extraneous air on the shell of spray chamber and entering channel It is improper when atomizer being caused to roll or be inverted, liquid in liquid storing part may be made to enter channel from extraneous air and overflowed.

Utility model content

The purpose of this utility model is to provide a kind of suction-type atomizer, encountered in the prior art with solving or reducing Problem.In order to realize that above-mentioned purpose of utility model, the utility model provide following technical scheme：

A kind of suction-type atomizer, including：

Spray chamber for a tubular room being defined by shell, including is located at lower part liquid storing part, superposed sky Chamber, and be arranged to convert the liquid in liquid storing part to the aerosol generator of aerosol,

Extraneous air enters channel, and internal channel mouth is equipped on the inside of cavity,

Go out mist channel,

Wherein, the shell of the spray chamber extends the tubular structure opened on the downside of in the of one from cavity top into cavity, The side wall of itself and cavity constitutes the open clip cavity in downside, and the shell of the tubular structure has adequate thickness, so that extraneous air It is disposed therein in a manner of hollow into channel and is extended to from the top down of tubular structure and is opened on tubular structure At internal channel mouth, it is described go out mist channel be opened in cavity top, the cavity area surrounded with the tubular structure communicates.

Preferably, wherein the suction-type atomizer is blast atomizer, the aerosol generator is from liquid storing part Intermediate region protrudes from tubular structure upward, is arranged as converting liquid in liquid storing part to aerosol and is ejected into the sky In chamber.

Preferably, the extraneous air enter channel and its internal channel mouth positioned at cavity side be it is multiple, it is described interior logical The position at road junction is less than aerosol generator, and along the tubular structure annular arrangement.

Preferably, the extraneous air enters the internal channel mouth in channel and is opened in lateral wall or the bottom of tubular structure.

Preferably, the extraneous air enters the internal channel mouth in channel and is opened in the madial wall of tubular structure, and position is low In aerosol generator.

Preferably, the internal channel mouth that the extraneous air enters channel is multiple, and along tubular structure annular arrangement.

Preferably, the tubular structure becomes narrow gradually from top to bottom.

Extraneous air is entered the tubular structure that channel is set to cavity inside by the suction-type atomizer of the utility model, and The side wall of itself and cavity is set to constitute the open clip cavity in downside, when patient's improper use causes atomizer to roll or be inverted, liquid storage Liquid in portion can be retained in clip cavity, be overflowed without entering channel from extraneous air.

Description of the drawings

A kind of structure chart of suction-type atomizer of the utility model is shown in Fig. 1

The extraneous air that suction-type atomizer shown in figure is shown in Fig. 2 enters the sectional view in channel

The partial enlarged view of the internal channel mouth of nebulizer external member shown in Fig. 1 is shown in Fig. 3

The Section A-A figure of the near zone of internal channel mouth shown in Fig. 3 is shown in Fig. 4

Specific implementation mode

As shown in Figure 1, a kind of specific embodiment of suction-type atomizer for the utility model comprising：

Spray chamber is the tubular room defined by shell, including is located at lower part liquid storing part 1, superposed Cavity 2 and aerosol generator 3,

Extraneous air enters channel 4, and internal channel mouth 41 is equipped in 2 inside of cavity

Go out mist channel 5,

It is characterized in that, the shell of the spray chamber extends the cylinder that a downside opens from 2 top of cavity into cavity 2 Shape structure 6 constitutes the open clip cavity 21 in downside with the side wall of cavity 2, and the shell of the tubular structure 6 has adequate thickness, It is disposed therein in a manner of hollow (referring to Fig. 2) by making extraneous air enter channel 4, and from the top down of tubular structure 6 Extend at the internal channel mouth 41 being opened on tubular structure 6 (referring to Fig. 3, Fig. 4), it is described go out mist channel 5 be opened in cavity 2 top Portion is communicated with 2 region of cavity that the tubular structure 6 is surrounded.

As shown in Figure 1, the side wall of tubular structure 6 and cavity 2 constitutes the clip cavity 2 of annular, and side seal closes thereon, and downside opens And it is connected to liquid storing part 1, when atomizer tilts, side is put or is inverted, the liquid in liquid storing part 1 will be retained in the clip cavity of cavity 2 In 21, leaked out without entering channel 4 from extraneous air or going out mist channel 5.

As shown in Figure 1, in a preferred embodiment, the suction-type atomizer is blast atomizer, the aerosol Generator 3 is protruded from from the intermediate region of liquid storing part 1 in tubular structure 6 upward, is arranged as liquid continuous turn in liquid storing part 1 It turns to aerosol and is ejected into the cavity 2.

The blast atomizer of the present embodiment, aerosol generator are nebulizer structure common in the art, The compressed air ingress pipe upwardly extended from downside including one, upper part end form fumarole in the cavity of spray chamber； And body is formed including a flow path, it is usually installed on the compression ingress pipe with coverage mode, and in the position of fumarole It sets and is correspondingly provided with spray holes, and flow path forms body connection fumarole and liquid storing part；It is located above spray holes in addition, further including one Block piece.Its basic principle makes great efforts (Bernoulli) principle for shellfish, and high speed gas is formed by tiny nozzle using compressed air The negative pressure of stream, generation drives in the liquid injection to obstacle in liquid storing part, and splashing around under high-speed impact makes drop become The particle that nebulizes is sprayed from escape pipe, realizes effective Inhalation in Treating.

As shown in Figure 1, in a preferred embodiment, the internal channel mouth 41 that extraneous air enters channel 4 is opened in tubular The madial wall of structure 6.It will be apparent that when atomizer tilts, side is put or is inverted, the liquid in liquid storing part 1 will be retained in cavity 2 Clip cavity 21 in, will not enter from extraneous air channel 4 internal channel mouth 41 leak out.

The position of internal channel mouth 41 in the present embodiment is less than aerosol generator 3, in patient breaths, can make external sky Gas enters the more smooth aerosol by cavity 2 of air-flow and guides to going out mist channel 5.

As a deformation of the present embodiment, the internal channel mouth 41 that extraneous air enters channel 4 can also be opened in tubular The lateral wall of structure 6, in patient breaths, extraneous air enters the clip cavity 21 that air-flow initially enters cavity 2, further around tubular knot excessively The bottom of structure 6 is moved via the mist channel 5 that goes out of aerosol generator 3 upward, can also the more smooth gas by cavity 2 Colloidal sol is guided to going out mist channel 5.Also, when atomizer tilts, side is put or is inverted, the liquid in liquid storing part 1 will be retained in In the clip cavity 21 of cavity 2, the internal channel mouth 41 that channel 4 will not be entered from extraneous air leaks out.

As a deformation of the present embodiment, the internal channel mouth 41 that extraneous air enters channel 4 can also be opened in tubular The bottom of structure 6, at this time can also the more smooth aerosol by cavity 2 guide to going out mist channel 5, and when atomizer inclines Tiltedly, when side is put or is inverted, the liquid in liquid storing part 1 will be retained in the clip cavity 21 of cavity 2, will not be entered from extraneous air logical The internal channel mouth 41 in road 4 leaks out.

As shown in Figure 1, in a preferred embodiment, internal channel mouth 41 that extraneous air enters channel 4 is multiple, and edge 6 annular arrangement of the tubular structure.When the patient inhales, ambient air outside enters channel 4 into cavity 2 from extraneous air Flowing is entered by multiple internal channel mouths 41 in cavity 2, and by aerosol generator 3 and aerosol court is carried secretly by all directions Go out the movement of mist channel 5, can evenly, smooth aerosol in cavity 2 is guided to patient.

In a preferred embodiment, tubular structure 6 shown in FIG. 1 can also be set as becoming narrow gradually down, with Keep the lower opening of clip cavity 2 sufficiently large, when atomizer tilts, side is put or is inverted, the liquid in liquid storing part 1 will be easier to be protected It stays in the clip cavity 21 of cavity 2, the internal channel mouth 41 that channel 4 will not be entered from extraneous air leaks out.

Extraneous air in the embodiments of the present invention enters the specific set-up mode ginseng of channel 4 and its internal channel mouth 41 See that the partial enlarged view of internal channel mouth 41 at the present embodiment one is shown in Fig. 3 and Fig. 4, Fig. 3, it is seen that extraneous air enters channel 4 are set in a manner of hollow in tubular structure, are extended from up to down, and internal channel mouth 41 is opened in the side wall of tubular structure 6 On, Fig. 4 bitmaps 3 are along the sectional drawing of line A-A, and clearer to show that extraneous air enters channel 4 be arranged in a manner of hollow On tubular structure 6, internal channel mouth 41 is opened on the side wall of tubular structure 6.

It will be appreciated by those skilled in the art that although the utility model is described in the way of multiple embodiments , but not each embodiment only contains an independent technical solution.So narration is just for the sake of clear in specification For the sake of, the skilled in the art should refer to the specification as a whole is understood, and by skill involved in each embodiment Art scheme, which is regarded as, can be combined with each other into the mode of different embodiments to understand the scope of protection of the utility model.

The above descriptions are merely exemplary embodiments of the present utility model, is not limited to the model of the utility model It encloses.Any those skilled in the art, under the premise of not departing from the design and principle of the utility model made by equivalent variations, Modification and combination, should all belong to the range of the utility model protection.

Claims (6)

1. a kind of suction-type atomizer, including：

Spray chamber is the tubular room defined by shell, including is located at lower part liquid storing part (1), superposed sky Chamber (2) and aerosol generator (3),

Extraneous air enters channel (4), and internal channel mouth (41) is equipped on the inside of cavity (2),

Go out mist channel (5),

It is characterized in that, the shell of the spray chamber extends the cylinder opened on the downside of in the of one from the top of cavity (2) into cavity (2) Shape structure (6) constitutes the open clip cavity (21) in downside with the side wall of cavity (2), and the shell of the tubular structure (6) has foot Enough thickness so that extraneous air is entered channel (4) and is disposed therein in a manner of hollow, and from the top of tubular structure (6) to Under extend at the internal channel mouth (41) being opened on tubular structure (6), it is described go out mist channel (5) be opened at the top of cavity (2), It is communicated with cavity (2) region that the tubular structure (6) is surrounded.

2. suction-type atomizer described in claim 1, is blast atomizer, the aerosol generator (3) is from liquid storing part (1) intermediate region is protruded from upward in tubular structure (6).

3. the suction-type atomizer described in claim 2, the internal channel mouth (41) that the extraneous air enters channel (4) is opened in The lateral wall of tubular structure (6) or bottom.

4. the suction-type atomizer described in claim 2, the internal channel mouth (41) that the extraneous air enters channel (4) is opened in The madial wall of tubular structure (6), and it is less than aerosol generator (3).

5. suction-type atomizer described in claim 1, the internal channel mouth (41) that the extraneous air enters channel (4) is more It is a, and the lateral wall along tubular structure (6), bottom or madial wall annular arrangement.

6. suction-type atomizer described in claim 1, the tubular structure (6) becomes narrow gradually from top to bottom.