TWM542474U - Liquid medicine atomizer - Google Patents

Description

Liquid atomizer

The present invention is a medical liquid atomizer for providing medical use, which is used for mixing liquid medicament with air and atomizing and spraying for patient to inhale from the upper respiratory tract; the composition is two-piece, which can reduce assembly cost.

The liquid atomizer is a common medical device used to mix the liquid medicament with air and spray it out for the patient to inhale into the upper respiratory tract for treatment; the basic structure of the commercially available nebulizer is as shown in the first figure and the second figure. The present invention comprises a medicament cup 100 containing a liquid medicament and connected to an air pump, and an output cover 200 covering the top of the medicament cup 100, wherein a cone-shaped head 101 protrudes from the center of the bottom of the medicament cup 100, and the atomization output cover 200 Then, a tapered sleeve 201 extending downward is disposed outside the tapered nozzle 101.

When the air pump ejects air from the top of the conical nozzle 101 of the medicament cup 100, the accelerating airflow forms a negative pressure, and the liquid medicine is drained upward along the gap between the conical nozzle 101 and the taper sleeve 201 to the top of the conical nozzle 101, and Atomization as the gas stream is ejected.

As shown, in the currently known technique, the top of the taper sleeve 201 is provided with a compression neck portion 202, which functions to provide flexibility when the taper sleeve 201 is placed outside the cone-shaped nozzle 101. Deformability to absorb the tolerances assembled between the taper sleeve 201 and the tapered spray head 101.

The above design has been empirically tested by the creator and found that the compression neck is very difficult to implement because the taper sleeve 201 of the output cover 200 and the compression neck 202 are integrally formed into the same material, and if made of a soft plastic material, It can be compressed, but when the output cover 200 is assembled in the medicine cup 100, it will be less stable due to the soft plastic material; if it is generally used, it is quite hard. If the plastic material is made, it will not be elastically deformed, and it will cause the output cover 200 to be integrally molded and difficult to release.

In fact, the applicant's practical experience in mold design and plastic injection molding for many years, the size of plastic injection molding can be very fine, and there are many ways to match the assembly. There should be no compression neck in the design. It is necessary, but the atomization structure is essential when the liquid is atomized as the airflow is ejected from the top of the cone.

As shown, the prior art atomizing structure is provided with a horizontal stripe striker 203 under the compressed neck portion 202 of the taper sleeve 201, and a planar stop wall 204 is disposed above the compressed neck portion 202. When the top of the cone-shaped nozzle 101 is ejected, it first hits the horizontal strip-shaped impact piece 203 to be atomized, and then passes through the blocking of the planar stopper wall 204, so that the atomized liquid is dispersed to the periphery and released.

Wherein, when the planar stop wall 204 blocks the atomized liquid, some of the atomized liquid will randomly condense irregularly so that a plurality of water drops adhere to the planar stop wall 204 until the particle size of the water-like liquid is large to some kind After the degree of dripping, at this time, the water-like liquid medicine adhered to the flat stopper wall 204 is irregularly randomly condensed, and a part of the condensed liquid solution may hinder the jet flow when dripping, so that the atomized particle diameter is not Evenly, before the liquid condensate and drip, the irregular condensed water-like liquid solution will also hinder the diffusion of the atomized liquid to the surrounding, making the release of the atomized liquid uneven, and the effect is not good. .

Secondly, since the chemical liquid must be drained upward along the gap between the tapered spray head 101 and the taper sleeve 201 to the top of the tapered spray head 101, in order to maintain a gap between the tapered spray head 101 and the taper sleeve 201, the prior art is in the taper sleeve 201. A plurality of embossments 205 are disposed therein. Although the embossments 205 can be forcibly demolded during injection molding, the granules 205 may be worn or even flattened during demolding, which seriously affects the accuracy.

In view of the lack of prior art, the purpose of the present invention is to provide a liquid atomizer for mixing a liquid medicament with air and then atomizing it for inhalation treatment. In the process of atomization, a part of the atomized liquid with a larger particle size can be quickly condensed and refluxed, and the diffusion of the atomized liquid with a fine particle diameter is not hindered, and the effect of uniform atomization is achieved.

In order to achieve the above object, the present medical liquid atomizer comprises: a medicine cup containing a liquid medicine and connected to an external air pump, and an output cover detachably assembled above the medicine cup, the bottom of the medicine cup bottom a tapered nozzle is protruded upward, and the output cover extends downwardly a taper sleeve disposed outside the cone-shaped spray head, the external air pump supplies pressurized gas to guide the liquid medicine upwardly between the cone-shaped spray head and the taper sleeve of the medicament cup, and is mixed with the accelerated airflow after being mixed by the top of the cone-shaped spray head Released to the outside through an output tube disposed at the top of the output cover; wherein: a taper above the top of the tapered spray head for allowing the liquid to collide with the accelerated airflow to form an atomized liquid solution, and a baffle above the stud for dispersing and releasing the atomized liquid, the stud is located at the center of the bottom surface of the baffle, and the bottom sides of the baffle are respectively inclined downward for the partial atomization of the liquid to condense downward A curved surface or bevel of reflow.

With the above configuration, when the accelerating airflow and the liquid medicine are ejected from the top of the conical nozzle, the liquid medicine first hits the stud and is atomized, and then released by the flap, and the flap is dispersed while dispersing the liquid medicine. The atomized liquid with a larger particle size will condense on the bottom surface of the baffle, and will quickly condense to the liquid on both sides through the guidance of the curved surface or the inclined surface on both sides of the bottom surface of the baffle, so that the liquid medicine condensed into a liquid can be reflowed. The atomization is performed again to achieve a uniform atomization effect.

The following further describes the implementation of each component: in implementation, the baffle has a guiding column extending downwardly on the outer sides of the two curved surfaces or the inclined surfaces, and the bottom ends of the guiding posts are respectively connected to the outer wall of the tapered sleeve. The baffle is kept at a fixed distance from the top of the taper sleeve, and the liquid medicine condensed into a liquid can be returned downward along the outer walls of the two guiding columns and the sleeve.

In implementation, the inner edge of the taper sleeve is respectively provided with a flow guiding groove for guiding the liquid upward at least on both sides, and each of the guiding grooves extends from the bottom end of the taper sleeve to the top end of the taper sleeve. The arrangement of the guide groove is different from the prior art in that the gap is maintained by the protrusions, which facilitates demolding and maintains precision in injection molding and assembly.

In implementation, the bottom end of the taper sleeve is spaced apart from a plurality of protrusions that abut against the bottom of the medicament cup, so that a gap is formed between the bottom end of the cone sleeve and the bottom of the medicament cup, so that the liquid medicine enters the cone sleeve from the gap. The cone nozzles are drained upwards.

In the implementation, the bottom of the output tube is provided with a through hole extending from the center of the inner portion of the output cover, and a plurality of connecting columns arranged at intervals are arranged around the opening, and the bottom ends of the plurality of connecting columns are connected around the blocking piece. A fixed distance is maintained between the top of the baffle and the underside of the port for the atomized liquid to pass between the top of the baffle and the port and then released by the output tube.

When implemented, the stud is cylindrical or elongated.

Compared with the prior art, the present invention can make the liquid atom atomization more uniform through the baffle with curved curved surface or inclined surface, and allows the atomized liquid with larger particle diameter to quickly condense to liquid reflux on both sides, so that The atomization effect is better; in addition, the guide groove design on the inner edge of the taper sleeve allows the liquid to drain smoothly upwards, and is advantageous for demoulding, and maintains precision in injection molding and assembly, overcoming the defects of the prior art. .

10‧‧‧ Pharmacy Cup

11‧‧‧Cone nozzle

20‧‧‧ Output cover

21‧‧‧ cone sleeve

22‧‧‧Output tube

23‧‧‧ mouth

24‧‧‧Connecting column

25‧‧‧Guide trough

26‧‧‧ convex

30‧‧ ‧Flap

31‧‧‧ Guide column

32‧‧‧Arc surface or bevel

33‧‧‧Bump

First figure: Schematic diagram of the structure of a commercially available atomizer.

Second figure: Schematic diagram of the structural combination of a commercially available atomizer.

The third picture: the exploded view of the creation (1).

The fourth picture: the exploded view of the creation (2).

Figure 5: Schematic diagram of the structure of this creation.

Figure 6: Schematic diagram of the combined structure of this creation.

Figure 7 is an exploded perspective view of a second embodiment of the present creation.

In the following, according to the technical means of the creation, the implementation method suitable for the creation is listed, and the description is as follows: as shown in the third to sixth figures, the creation liquid atomizer includes an air pump ( Figure 6 is a view showing a medicine cup 10 for containing a liquid medicine, and an output cover 20 detachably assembled above the medicine cup 10. A cone-shaped head 11 is protruded upward from the center of the bottom of the medicine cup 10, and the output is shown. The cover 20 extends downwardly with a taper sleeve 21 disposed outside the cone-shaped spray head 11. When the external air pump inputs pressurized gas from the bottom of the medicament cup 10, the accelerated airflow can be ejected from the top of the cone-shaped spray head 11, and because the airflow is accelerated in the cone A negative pressure is formed on the top of the nozzle 11 so that the chemical liquid in the medicine cup 10 can be drawn upward along the tapered head 11 and the taper sleeve 21 to be ejected.

In the figure, an output tube 22 is disposed at the top of the output cover 22. The bottom of the output tube 22 is provided with a through-port 23 protruding from the center of the inner portion of the output cover 20, and a plurality of connecting columns arranged at intervals around the opening 23 24. The bottom end of the plurality of connecting posts 24 is connected to a periphery of a blocking piece 30 to maintain a fixed distance between the top of the blocking piece 30 and the lower portion of the opening 23. In addition, the flap A guide post 31 extends downwardly from the outside of the two sides, and the bottom ends of the two guide posts 31 are respectively connected to the outer wall of the taper sleeve 21 to maintain a fixed distance between the baffle 30 and the taper sleeve 21.

As shown in the figure, the two sides of the bottom surface of the baffle 30 are respectively provided with an arc curved surface or a sloped surface 32 which is bent downward or inclined outwardly, and a protrusion 33 is disposed between the central position, that is, the curved surface or the inclined surface 32. The stud 33 is located just above the center of the taper sleeve 21 and maintains a fixed distance; thus, when the taper sleeve 21 is disposed outside the cone-shaped head 11, the accelerating airflow and the liquid medicine ejected from the top of the cone-shaped nozzle 11 are hit by The protrusion 33 is atomized, and then the atomized liquid is diffused to the periphery due to the blocking of the baffle 30 above the stud 33, and is passed through the port 23 as the airflow passes up between the top of the baffle 30 and the lower portion of the port 23. The inlet tube 22 is released for the patient to inhale the atomized solution from the output tube 22 for treatment.

The liquid medicine and the accelerated gas flow impinge on the projection 33 to be atomized, and in the process of dispersing the atomized liquid solution by the stopper 30, the atomized liquid having a larger particle size is condensed on the bottom surface of the flap 30, and passes through the block. The arc curved surface or the inclined surface 32 on both sides of the bottom surface of the sheet 30 is quickly condensed to a liquid state on both sides; the liquid medicine which is condensed into a liquid is flowed down along the guiding of the two guiding columns 31 to the outer wall of the taper sleeve 21, Then, it flows back down the outer wall of the sleeve 21 to the bottom of the medicine cup 10, thereby eliminating the atomization liquid having a larger particle diameter, thereby achieving the effect of uniform atomization; in addition, the protrusion 33 is intended to provide liquid medicine and acceleration. The air stream is atomized and impinged, so that the stud 33 is not limited to a cylindrical shape, and the strip shape as shown in the seventh figure is also an implementable manner.

As shown in the third and sixth figures, the inner edge of the taper sleeve 21 of the output cover 20 is respectively provided with a flow guiding groove 25 for guiding the liquid upward at least on both sides, and each of the guiding grooves 25 is respectively formed by a taper sleeve. The bottom end of the 21 extends to the top end of the taper sleeve 21; the guide groove 25 mainly provides a flow path for the liquid medicine at the bottom of the medicine cup 10 to smoothly drain upwardly between the taper sleeve 21 and the cone-shaped spray head 11, so that the taper sleeve 21 can be avoided. The gap between the cone and the cone 11 is too small to be smoothly drained. This is different from the prior art in that the gap is maintained by the bumps, which not only facilitates demolding, but also maintains accuracy in injection molding and assembly.

In practice, the bottom end of the sleeve 21 is further provided with a plurality of protrusions 26 which are abutted against the bottom of the medicine cup 10, so that a gap is formed between the bottom end of the sleeve 21 and the bottom of the medicine cup 10 for the liquid medicine to pass through the gap. It enters between the taper sleeve 21 and the tapered spray head 11 to drain upward.

The above description and drawings show examples of preferred embodiments of the present invention. This is not a limitation of this creation. Any similarity or similarity to the structure, installation, features, etc. of this creation shall be within the creation purpose and patent application scope of this creation.

10‧‧‧ Pharmacy Cup

20‧‧‧ Output cover

21‧‧‧ cone sleeve

22‧‧‧Output tube

23‧‧‧ mouth

24‧‧‧Connecting column

25‧‧‧Guide trough

26‧‧‧ convex

30‧‧ ‧Flap

31‧‧‧ Guide column

32‧‧‧Arc surface or bevel

33‧‧‧Bump

Claims (6)

A liquid medicine atomizer comprising a medicine cup containing a liquid medicine and connected to an external air pump, and an output cover detachably assembled above the medicine cup, wherein a center of the bottom of the medicine cup protrudes upwardly with a taper shape a spray head, the output cover extends downwardly with a taper sleeve disposed outside the cone-shaped spray head, and the external air pump provides an accelerated air flow to guide the liquid medicine upwardly between the cone-shaped spray head and the taper sleeve of the medicament cup, and After the top of the cone nozzle is mixed with the accelerated airflow, the output tube disposed at the top of the output cover is released to the outside; wherein: the cone sleeve is disposed above the top of the cone nozzle to form a mist after the chemical liquid collides with the acceleration airflow. a protruding column of the chemical liquid, and a blocking piece disposed above the protruding column for dispersing and releasing the atomized liquid, the protruding column is located at the center of the bottom surface of the blocking piece, and the outer side of the bottom surface of the shielding piece is respectively bent downwardly or Inclined to provide a curved surface or bevel of a portion of the atomized liquid that condenses downward. The liquid atomizing device of claim 1, wherein the blocking piece has a guiding column extending downwardly on the outer sides of the two curved surfaces or the inclined sides, and the bottom ends of the guiding columns are respectively connected The outer wall of the taper sleeve maintains a fixed distance between the baffle and the upper portion of the taper sleeve, and allows the liquid medicine condensed into a liquid to flow back down along the outer walls of the two guiding columns and the taper sleeve. The liquid atomizer according to claim 1, wherein the inner edge of the taper sleeve is respectively provided with a flow guiding groove for guiding the liquid upward at least on both sides, and each of the guiding grooves is respectively provided by the bottom end of the taper sleeve Extends to the top of the cone. The liquid atomizer according to claim 1, wherein the bottom end of the taper sleeve is provided with a plurality of protrusions which are pressed against the bottom of the medicine cup to form a bottom between the bottom end of the sleeve and the bottom of the medicine cup. A gap. The liquid atomizer according to any one of claims 1 to 4, wherein the bottom of the output tube is provided with a through hole extending in the center of the inner portion of the output cover, and the opening extends downwardly. a plurality of connecting columns arranged at intervals, wherein the bottom ends of the plurality of connecting columns are connected around the baffle to maintain a fixed distance between the top of the baffle and the bottom of the port for the atomized liquid to pass through the top of the baffle and the port After being released by the output tube. The liquid atomizer according to any one of claims 1 to 4, wherein the stud is cylindrical or elongated.