CN219290358U

CN219290358U - Gas retaining and backflow structure and drug delivery device

Info

Publication number: CN219290358U
Application number: CN202320044436.5U
Authority: CN
Inventors: 刘思维; 刘俐; 马奕阳
Original assignee: Individual
Current assignee: Guolian North Traditional Chinese Medicine Treatment Equipment Suzhou Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-07-04
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses a gas retaining and refluxing structure and a drug feeder. The shell is formed with an atomizing cavity and a heating cavity. The gas retaining pipeline is arranged in the shell, the gas retaining pipeline is provided with a drainage channel, the air inlet end of the drainage channel extends into the atomizing cavity, and the air outlet end of the drainage channel extends into the heating cavity; and the drainage channel is used for guiding the atomizing gas from the atomizing cavity into the heating cavity. The backflow bin is arranged around the air inlet end of the drainage channel, and is provided with a backflow cavity communicated with the atomization cavity; and the backflow cavity is used for backflow of the liquefied atomized liquid into the atomization cavity. The utility model combines the gas retaining pipeline and the reflux bin structure, reduces the liquefaction of ultrasonic atomized matters caused by polymerization reaction through a circulation mode of drainage and reflux, ensures that the atomized matters cannot contact the inner wall of the machine, improves the utilization rate of atomized liquid, and ensures the normal administration of the ultrasonic atomized administration device.

Description

Gas retaining and backflow structure and drug delivery device

Technical Field

The utility model relates to the technical field of ultrasonic atomization drug delivery devices, in particular to a gas retaining and backflow structure and a drug delivery device.

Background

In the medical field, the drug applicators may be used for aerosol inhalation therapy, also referred to as ultrasonic nebulizers. The medical ultrasonic atomizer is mainly used for treating various upper and lower respiratory diseases, such as common cold, fever, cough, asthma, sore throat, pharyngitis, rhinitis, bronchitis, pneumoconiosis and other diseases in the trachea, bronchus, alveolus and chest. The aerosol inhalation treatment is an important and effective treatment method in respiratory system diseases, and adopts a drug feeder to atomize the liquid medicine into tiny particles, and the drug enters the respiratory tract and lung to deposit in a respiratory inhalation mode, so that the purpose of painless, rapid and effective treatment is achieved.

At present, most stock solutions atomized by ultrasonic waves are compounds containing carbon-carbon double bonds or carbon-carbon triple bonds, and when the stock solutions are atomized by ultrasonic waves, macromolecular compounds in the stock solutions are broken into small molecular compounds by ultrasonic waves, namely ultrasonic atomized substances. However, as the distance from the ultrasonic atomized material to the heating tube of the heating cavity is still longer, the small-molecule ultrasonic atomized material containing carbon-carbon double bonds or carbon-carbon triple bonds can be rapidly aggregated into macromolecules, namely, polymerization reaction occurs along with the increase of the amount of the small-molecule ultrasonic atomized material. In the process of delivering the aerosol to the nozzle of the applicator, it is not guaranteed that the ultrasonic aerosol does not liquefy, i.e. the polymerization reaction described above. The liquefaction phenomenon is generated, so that the use rate of the medicine in the instrument is easy to be reduced, the instrument is in fault, and the normal administration of the ultrasonic atomization administration device cannot be ensured.

Disclosure of Invention

The utility model mainly aims to provide a gas retaining and backflow structure and a drug delivery device, which aim to improve the utilization rate of drugs, reduce liquefaction of ultrasonic atomization substances, avoid instrument faults and ensure normal drug delivery of the ultrasonic atomization drug delivery device.

To achieve the above object, the present utility model provides a gas retaining and refluxing structure for a drug dispenser, the gas retaining and refluxing structure comprising:

a shell, which is provided with an atomization cavity and a heating cavity;

the gas retaining pipeline is arranged in the shell, the gas retaining pipeline is provided with a drainage channel, the air inlet end of the drainage channel stretches into the atomizing cavity, and the air outlet end of the drainage channel stretches into the heating cavity; the drainage channel is used for guiding atomizing gas from the atomizing cavity to the heating cavity; and

the backflow bin is arranged around the air inlet end of the drainage channel and is provided with a backflow cavity communicated with the atomization cavity; and the backflow cavity is used for backflow of the liquefied atomized liquid into the atomization cavity.

Optionally, the reflux cavity is funnel-shaped, and the cross-sectional width of the reflux cavity near one end of the atomizing cavity is smaller than the cross-sectional width of the reflux cavity near one end of the heating cavity.

Optionally, the drainage channel extends along the length direction of the shell.

Optionally, the gas retaining tube is circular tube shaped.

Optionally, the return lumen encloses at least half of the drainage channel.

Optionally, the atomizing cavity is concavely arranged.

Optionally, the cross-sectional width of the reflux cavity near one end of the atomizing cavity is smaller than the cross-sectional width of the atomizing cavity.

To achieve the above object, the present utility model also proposes a dispenser comprising a gas retaining and recirculation structure as described above, the gas retaining and recirculation structure comprising:

a shell, which is provided with an atomization cavity and a heating cavity;

Optionally, the drug feeder further comprises an ultrasonic atomization sheet and a sterile cotton stick, wherein the ultrasonic atomization sheet is connected with the sterile cotton stick, the sterile cotton stick is inserted into a liquid medicine bottle, and a drug carrying bin for placing the liquid medicine bottle is arranged in the shell; the ultrasonic atomization sheet is used for atomizing atomization liquid contained in the sterile cotton stick through variable frequency vibration.

Optionally, the medicine feeder further comprises a heating tube arranged in the heating cavity and a suction nozzle arranged at the end part of the shell, one end of the heating tube is communicated with the gas retaining pipeline, the other end of the heating tube is communicated with the suction nozzle, and a communication hole communicated with the heating cavity is formed in the heating tube.

In the technical scheme of the utility model, the gas retaining and backflow structure comprises a shell, a gas retaining pipeline and a backflow bin; the shell is provided with an atomization cavity and a heating cavity; the gas retaining pipeline is arranged in the shell, the gas retaining pipeline is provided with a drainage channel, the air inlet end of the drainage channel extends into the atomizing cavity, and the air outlet end of the drainage channel extends into the heating cavity; the drainage channel is used for guiding the atomized gas from the atomized cavity into the heating cavity; the backflow bin is arranged around the air inlet end of the drainage channel, and is provided with a backflow cavity communicated with the atomization cavity; and the backflow cavity is used for backflow of the liquefied atomized liquid into the atomization cavity. Therefore, through the circulation mode of drainage and reflux, the liquefaction of the ultrasonic atomization object is reduced, the fact that the atomization object cannot contact the inner wall of the machine is guaranteed, the fault of the instrument is avoided, the use ratio of the atomization liquid is improved, and meanwhile, the normal administration of the ultrasonic atomization administration device is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of one embodiment of an applicator of the present utility model;

FIG. 2 is an enlarged view of the gas retaining and recirculation structure at section A of FIG. 1;

FIG. 3 is a schematic view of an embodiment of the applicator of the present utility model;

fig. 4 is an exploded view of one embodiment of the applicator of the present utility model.

Reference numerals illustrate:

10. a housing; 20. a gas retention conduit; 30. a reflux bin; 101a, an atomization cavity; 101b, a warming chamber; 30a, a reflow chamber; 40. an ultrasonic atomization sheet; 50. a sterile cotton stick; 60. a liquid medicine bottle; 70. a drug carrying bin; 80. a heating tube; 90. and (5) a suction nozzle.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a gas retaining and backflow structure which can be applied to a medicine feeder, in particular to an ultrasonic atomization medicine feeder, and medicines can be liquid medicines such as ganoderma lucidum, medlar, ginseng and the like, and the structure is not limited.

Referring to fig. 1 to 4, in an embodiment of the present utility model, the gas retaining and recirculation structure includes a housing 10, a gas retaining tube 20, and a recirculation chamber 30. The housing 10 is formed with an atomizing chamber 101a and a warming chamber 101b. The gas retaining pipeline 20 is arranged in the shell 10, the gas retaining pipeline 20 is provided with a drainage channel, the air inlet end of the drainage channel extends into the atomizing cavity 101a, and the air outlet end of the drainage channel extends into the heating cavity 101 b; a drainage channel for guiding the atomizing gas from the atomizing chamber 101a into the warming chamber 101b. The backflow bin 30 is arranged around the air inlet end of the drainage channel, and the backflow bin 30 is provided with a backflow cavity 30a communicated with the atomization cavity 101 a; a return chamber 30a for returning the liquefied atomized liquid into the atomization chamber 101 a.

In this embodiment, the housing 10 may be cylindrical, square, rectangular, or the like, may be assembled from a plurality of components, or may be an integrally formed single component, and the material thereof may be plastic or the like, which is not particularly limited herein.

The atomizing chamber 101a of the housing 10 is provided with the ultrasonic atomizing sheet 40, and the heating chamber 101b may be provided with a heating element such as the heating tube 80, which is not limited thereto.

In this embodiment, the gas retaining tube 20 may be in a circular tube shape or a square tube shape, and the drainage channel may extend along the length direction of the housing 10; the backflow chamber 30 may be a sleeve or formed by surrounding the inner wall of the casing 10, the backflow chamber 30a may be funnel-shaped, and the backflow chamber 30a may surround at least half of the drainage channel, so as to achieve a better backflow effect. The gas retaining conduit 20 and the return chamber 30 may be separate and removable components or may be formed by the inner wall of the housing 10, as not limited herein.

The gas retaining tube 20 is used for changing the motion trail of the atomized matter: the ultrasonic atomization material in the prior art is changed into the vertical upward flow from the peripheral diffusion type, so that the ultrasonic atomization material can move vertically upward to directly reach the upper heating cavity 101b, atomized gas can be limited, the liquid formed by mist condensation is avoided, and normal administration is ensured.

The reflux bin 30 surrounds the gas channel in half, and has the effect of allowing liquefied ultrasonic atomization liquid to flow back into the atomization cavity 101a along the inner wall of the reflux bin 30 under the action of gravity in the process of vertically conveying ultrasonic atomization, and then the ultrasonic atomization sheet 40 vibrates the liquid in the atomization cavity 101a to regenerate the ultrasonic atomization.

The utility model combines the structures of the gas retaining pipeline 20 and the reflux bin 30, reduces the liquefaction of ultrasonic atomized matters through a circulation mode of drainage and reflux, ensures that the atomized matters cannot contact the inner wall of the machine, avoids the faults of the instrument, improves the utilization rate of atomized liquid, and ensures the normal administration of the ultrasonic atomized administration device.

However, for the existing drug delivery device, the gas retaining tube 20 and the backflow bin 30 are not provided, and the gas retaining tube 20 is not provided to limit the flow of the atomized substances, the atomized substances generated by the ultrasonic atomization sheet 40 are scattered around in a conical and divergent manner through the circular air outlet hole in the middle of the ultrasonic atomization sheet 40, and the ultrasonic atomized substances are small molecular compounds, so that polymerization reaction can be rapidly generated to form macromolecular atomized substances, namely, the macromolecular atomized substances are rapidly liquefied. Also, the ultrasonic atomizing plate 40 is spaced from the suction nozzle 90, and a large amount of ultrasonic atomized matter is rapidly liquefied and wasted.

For better backflow effect, referring mainly to fig. 2, in an embodiment, the backflow chamber 30a is configured as a funnel, and the cross-sectional width of the backflow chamber 30a near the end of the atomizing chamber 101a is smaller than the cross-sectional width of the backflow chamber 30a near the end of the heating chamber 101b. That is, in the present embodiment, the cross-sectional width of the backflow chamber 30a gradually increases from bottom to top, so that the liquefied medical fluid can flow back into the atomization chamber 101a more quickly to be atomized again as soon as possible; or, the cross-sectional width of the backflow cavity 30a is in a stepwise increasing trend from bottom to top, so that the speed requirement of some application scenes on liquefied medicine backflow can be met. Here, the specific shape and size of the reflow chamber 30a are not limited.

Referring to fig. 2, in an embodiment, the atomizing chamber 101a in the housing 10 may be provided in a concave shape, and a cross-sectional width of the return chamber 30a near one end of the atomizing chamber 101a is smaller than a cross-sectional width of the atomizing chamber 101 a. By the arrangement, more liquid medicine can be temporarily stored in the atomizing cavity 101a, so that normal medicine feeding of the medicine feeder is ensured, and the utilization rate of the liquid medicine is further improved.

The utility model changes the motion track of ultrasonic atomization by arranging the gas retaining pipeline 20 to connect the atomization cavity 101a and the heating cavity 101b above, namely, spraying from the conical divergent shape to the periphery is changed into cylindrical ascending flow, and the ultrasonic atomization is directly sent to the heating cavity 101b above, so that the flow restriction and drainage are realized, and the mass coagulation and liquefaction of the ultrasonic atomization are reduced. By adding the funnel-shaped reflux bin 30 structure, a small amount of generated ultrasonic atomized liquid can flow back to the ultrasonic atomization sheet 40 along the inner wall of the reflux bin 30 and be atomized again, so that the utilization rate of the liquid medicine is improved.

The utility model combines the structures of the gas retaining pipeline 20 and the reflux bin 30, ensures that ultrasonic atomized matters cannot contact the inner wall of the machine through the circulation mode of drainage and reflux, improves the use efficiency of ultrasonic atomized liquid, and simultaneously ensures that the ultrasonic atomized liquid is not polluted. The ultrasonic atomizing sheet 40 is provided with the concave atomizing cavity 101a and the funnel-shaped reflux cavity 30a which are matched with each other, so that the dual functions of storing liquid medicine and refluxing the liquid medicine are achieved, the liquid is prevented from overflowing to other electronic devices, mechanical damage is avoided, and the use efficiency and the safety of the whole instrument are greatly improved.

The utility model also proposes a dispenser comprising a gas retaining and return structure, the specific structure of which is referred to the above embodiments, since the dispenser proposed by the utility model comprises all the solutions of all the embodiments of the above gas retaining and return structure, and therefore has at least the same technical effects as said gas retaining and return structure, which are not described herein.

Referring to fig. 1 to 4, in an embodiment, the drug delivery device may further include an ultrasonic atomization sheet 40 and a sterile cotton stick 50, the ultrasonic atomization sheet 40 is connected with the sterile cotton stick 50, the sterile cotton stick 50 extends into the drug solution bottle 60, and a drug loading bin 70 for placing the drug solution bottle 60 is provided in the housing 10; an ultrasonic atomizing plate 40 for atomizing an atomized liquid contained in the aseptic swab 50 by frequency-variable vibration.

In this embodiment, the drug delivery device may further include a heating tube 80 disposed in the heating chamber 101b and a suction nozzle 90 disposed at an end of the housing 10, wherein one end of the heating tube 80 is connected to the gas retaining tube 20, the other end of the heating tube 80 is connected to the suction nozzle 90, and a communication hole connected to the heating chamber 101b is formed in the heating tube 80.

The heating tube 80 can further heat and preserve heat the atomized gas and the liquefied liquid medicine in the heating cavity 101b, so that the liquid medicine is converted into mist with proper temperature as much as possible for human body inhalation, and the phenomenon that the liquid medicine flows onto other parts in the drug administration device to influence the normal operation of the drug administration device or leak liquid can be avoided.

The principle of the function is that the aseptic cotton stick 50 sends the liquid medicine in the liquid medicine bottle 60 to the ultrasonic atomization sheet 40, the ultrasonic atomization sheet 40 converts the liquid medicine into atomized gas by frequency conversion vibration, the atomized gas is guided into the air inlet of the heating tube 80 in the heating cavity 101b above through the gas retaining pipeline 20, then is heated and insulated by the heating tube 80, and then is sent to the suction nozzle 90, and finally is sucked by a human body through the suction nozzle 90.

In addition, the electronic pulse medicine feeder can be provided with a circuit control system which can be composed of a temperature control plate, a liquid control plate, a gas control plate, a voltage control plate and the like, and the electronic pulse medicine feeder mainly aims at achieving the control purpose of machinery. All of the control boards described above may be integrated on a single circuit board and may be mounted inside the bottom end cap of the applicator.

It should be noted that, when people inhale ultrasonic atomization gas at normal temperature, rejection reaction can be generated (the ultrasonic atomization gas at normal temperature is inhaled by human body to cause cough), while the drug feeder combines the ultrasonic atomization device with the heating atomization device, the ultrasonic atomization gas generated by the ultrasonic atomization sheet 40 in the atomization cavity 101a is guided to the heating tube 80 in the heating cavity 101b through the gas retaining pipeline 20 to heat the ultrasonic atomization material, the rejection reaction can not be generated when people inhale the ultrasonic atomization material after heating, and experience feeling is enhanced.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A gas retaining and recirculation structure for use with a drug delivery device, the gas retaining and recirculation structure comprising:

a shell, which is provided with an atomization cavity and a heating cavity;

2. The gas retaining and scavenging structure of claim 1, wherein the scavenging chamber is funnel-shaped and the cross-sectional width of the scavenging chamber near one end of the atomizing chamber is less than the cross-sectional width of the scavenging chamber near one end of the warming chamber.

3. The gas retaining and recirculation arrangement of claim 1, wherein the flow-directing channel extends along the length of the housing.

4. The gas retaining and recirculation arrangement of claim 1, wherein the gas retaining conduit is tubular.

5. The gas retaining and recirculation structure of claim 1, wherein the recirculation chamber encloses at least half of the drainage channel.

6. The gas retaining and recirculation arrangement of claim 2, wherein the atomizing chamber is concave in configuration.

7. The gas retaining and scavenging structure of claim 6, wherein the scavenging chamber has a cross-sectional width at an end thereof adjacent to the atomizing chamber that is less than the cross-sectional width of the atomizing chamber.

8. An applicator comprising a gas retaining and recirculation arrangement according to any one of claims 1 to 7.

9. The applicator of claim 8, further comprising an ultrasonic atomizing sheet and a sterile cotton stick, wherein the ultrasonic atomizing sheet is connected with the sterile cotton stick, the sterile cotton stick is inserted into a liquid medicine bottle, and the housing is provided with a medicine carrying bin for placing the liquid medicine bottle; the ultrasonic atomization sheet is used for atomizing atomization liquid contained in the sterile cotton stick through variable frequency vibration.

10. The dispenser of claim 9, further comprising a heating tube disposed in the heating chamber and a mouthpiece disposed at an end of the housing, wherein one end of the heating tube is in communication with the gas retaining tube, the other end of the heating tube is in communication with the mouthpiece, and a communication hole is formed in the heating tube and in communication with the heating chamber.