Inhalation drug delivery device for respiration and critical disease medicine department
By introducing auxiliary components such as annular sleeves, elastic arc plates, and sealing baffles into the inhalation drug delivery device, the problem of insufficient sealing caused by incomplete contact between the mouthpiece and the mouth is solved, achieving higher drug sealing and stability of therapeutic effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF SUN YAT-SEN UNIV GUANGXI HOSPITAL
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-28
AI Technical Summary
When using existing inhalation delivery devices, incomplete contact between the mouthpiece and the mouth may lead to insufficient sealing, allowing the drug to escape from gaps, affecting drug dosage and therapeutic effect.
An inhalation drug delivery device including an outer drug delivery cylinder and auxiliary components was designed. The auxiliary components include components such as an annular sleeve, an elastic arc plate, a sealing baffle, and a sealing gasket. Through the cooperation of these components, the mouthpiece is ensured to fit tightly with the mouth to prevent drug leakage.
The improved sealing of the inhalation delivery device ensures accurate drug dosage, enhances the reliability of treatment effects, and is suitable for use by different populations.
Smart Images

Figure CN224166676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drug delivery device technology, and in particular to an inhalation drug delivery device for respiratory and critical care medicine. Background Technology
[0002] Inhalation drug delivery devices for respiratory and critical care medicine are medical devices specifically designed for use in respiratory and critical care medicine departments to deliver medications to patients via inhalation. These devices help patients deliver medications directly to their lungs to treat various respiratory diseases, such as asthma and chronic obstructive pulmonary disease (COPD).
[0003] In the use of inhalation drug delivery devices, the mouthpiece cap is placed inside or over the mouth, the spray switch is pressed, and a deep inhalation and slow exhalation are performed until the medication is used up. However, when the mouthpiece cap is placed inside the mouth, the lips may not tightly seal the mouthpiece, which may result in incomplete contact between the mouthpiece and the mouth, leading to insufficient sealing. As a result, the medication may escape from the gaps during inhalation, reducing the inhaled dosage and affecting the therapeutic effect. Therefore, this application provides an inhalation drug delivery device for respiratory and critical care medicine to meet the needs. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an inhalation drug delivery device for respiratory and critical care medicine to solve the problem that in existing inhalation drug delivery devices, the contact between the mouthpiece and the mouth is not complete, which may lead to insufficient sealing. As a result, when the drug is inhaled, the drug may escape from the gaps, resulting in a reduced dosage of the inhaled drug and affecting the treatment effect.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] An inhalation drug delivery device for respiratory and critical care medicine includes an outer drug delivery cylinder and auxiliary components. One end of the outer drug delivery cylinder has a mouthpiece, and a dust cover is fixedly fitted onto the outer wall of the mouthpiece. A drug storage tube is provided on the inner wall of the outer drug delivery cylinder. The auxiliary components include an annular sleeve plate that slidably fits onto the outer wall of the mouthpiece. An elastic arc plate is provided at the top of the annular sleeve plate, and a sealing baffle is provided at one end of the elastic arc plate. A sealing gasket is provided on the outer wall of the sealing baffle, and a connecting sleeve is provided on the outer wall of the sealing baffle. A sealing pusher is provided at the top of the annular sleeve plate, and one end of the sealing pusher is connected to the outer wall of the sealing baffle.
[0007] Optionally, a sliding plate is provided on the top of the annular sleeve, and a pushing arc plate is provided on the outer wall of the sliding plate, with the outer wall of the pushing arc plate in contact with the outer wall of the sealing push plate.
[0008] Optionally, the inner wall of the pushing arc plate is provided with a deformation groove, which is located at the middle position of the pushing arc plate.
[0009] Optionally, the pushing arc plate is an arc-shaped elastic curved surface structure and is made of plastic, with an inwardly concave inclined arc in the middle of the pushing arc plate.
[0010] Optionally, the inner wall of the sealing pusher is provided with a weakening groove, which is located in the middle of the sealing pusher.
[0011] Optionally, the sealing pusher has an arc-shaped elastic curved surface structure and is made of plastic, with an inwardly concave inclined arc in the middle.
[0012] Optionally, the sealing baffle is an arc-shaped elastic curved surface structure and is made of plastic. The sealing baffle and the connecting sleeve are an integral structure.
[0013] Optionally, the sealing gasket is O-shaped and made of plastic, and the sealing baffle and the sealing gasket are an integral structure.
[0014] Optionally, a limiting plate is provided at the bottom of the annular sleeve, and a limiting groove adapted to the shape of the limiting plate is provided on the outer wall of the drug delivery cylinder. The limiting plate is fixedly sleeved inside the limiting groove. The limiting plate is an arc-shaped elastic curved surface structure and is made of plastic. The annular sleeve and the limiting plate are an integral structure.
[0015] Compared with the prior art, this utility model has at least the following beneficial effects:
[0016] In the above solution, by setting auxiliary components, not only can the sealing between the mouthpiece and the mouth be guaranteed, but the sealing needs of different users can also be met. On the one hand, this setting can ensure that the sealing baffle and sealing gasket fit tightly against the patient's face during use, avoiding incomplete contact between the mouthpiece and the mouth, which would result in insufficient sealing and allow the medication to escape from gaps when the patient inhales the medication, reducing the inhaled dosage and affecting the treatment effect. On the other hand, it can ensure the sealing effect at the connection between the mouthpiece and the mouthpiece when different users use it, which can maximize the applicability of the device. Attached Figure Description
[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.
[0018] Figure 1 A three-dimensional structural diagram of an inhalation drug delivery device used in respiratory and critical care medicine.
[0019] Figure 2 A magnified three-dimensional structural diagram of the assembly of the drug delivery outer cylinder and dust cover;
[0020] Figure 3 This is a three-dimensional enlarged structural diagram of the auxiliary component;
[0021] Figure 4 for Figure 3 Cross-sectional view of the three-dimensional structure;
[0022] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.
[0023] Figure label:
[0024] 1. Drug delivery outer cylinder; 2. Auxiliary components; 201. Annular sleeve; 202. Elastic arc plate; 203. Sealing baffle; 204. Sealing gasket; 205. Connecting sleeve; 206. Sliding plate; 207. Pushing arc plate; 208. Sealing push plate; 209. Deformation groove; 210. Weakening groove; 211. Limiting plate; 3. Suction nozzle; 4. Dust cover; 5. Drug storage tube; 6. Limiting groove.
[0025] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation
[0026] The following is a detailed description of an inhalation drug delivery device for respiratory and critical care medicine provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.
[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.
[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.
[0029] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.
[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.
[0031] like Figures 1 to 5As shown in the embodiment of this utility model, an inhalation drug delivery device for respiratory and critical care medicine is provided, including an outer drug delivery cylinder 1 and an auxiliary component 2. A nozzle 3 is provided at one end of the outer drug delivery cylinder 1, and a dust cover 4 is fixedly sleeved on the outer wall of the nozzle 3. A drug storage tube 5 is provided on the inner wall of the outer drug delivery cylinder 1. The auxiliary component 2 includes an annular sleeve 201, which is slidably sleeved on the outer wall of the nozzle 3. An elastic arc plate 202 is provided at the top of the annular sleeve 201, and a sealing baffle 203 is provided at one end of the elastic arc plate 202. A sealing gasket 204 is provided on the outer wall of the sealing baffle 203, and a connecting sleeve 205 is provided on the outer wall of the sealing baffle 203. A sealing pusher 208 is provided at the top of the annular sleeve 201, and one end of the sealing pusher 208 is connected to the sealing baffle 203. The outer walls are connected, and a sliding plate 206 is provided on the top of the annular sleeve plate 201. A pushing arc plate 207 is provided on the outer wall of the sliding plate 206. The outer wall of the pushing arc plate 207 is in contact with the outer wall of the sealing push plate 208. A deformation groove 209 is provided on the inner wall of the pushing arc plate 207. The deformation groove 209 is located in the middle of the pushing arc plate 207. The pushing arc plate 207 is an arc-shaped elastic curved surface structure and is made of plastic. The middle of the pushing arc plate 207 has an inwardly concave inclined arc. A weakening groove 210 is provided on the inner wall of the sealing push plate 208. The weakening groove 210 is located in the middle of the sealing push plate 208. The sealing push plate 208 is an arc-shaped elastic curved surface structure and is made of plastic. The middle of the sealing push plate 208 has an inwardly concave inclined arc.
[0032] By setting auxiliary component 2, the elastic arc plate 202 is an arc-shaped elastic curved surface structure with an inwardly concave incline in the middle. When the sealing baffle 203 is compressed, the elastic arc plate 202 will be concave in the middle, and the elasticity of the elastic arc plate 202 will allow the sealing baffle 203 to fit tightly against the mouth. The pushing arc plate 207 is an arc-shaped elastic curved surface structure, and the deformation groove 209 is located in the middle of the pushing arc plate 207 and has an inwardly concave incline. The sealing push plate 208 is an arc-shaped elastic curved surface structure, and the weakening groove 210 is located in the middle of the sealing push plate 208 and has an inwardly concave incline. The inclined arc of the recess, with the deformation groove 209 and the weakening groove 210 being mirror-symmetrical, allows the pushing plate 207 to deform at the deformation groove 209, thereby pushing the sealing push plate 208. This, in turn, causes the sealing push plate 208 to deform at the weakening groove 210, pushing the sealing baffle 203 to fit tightly against the patient's face. During use, this ensures that the sealing baffle 203 and the sealing pad 204 fit tightly against the patient's face, preventing incomplete contact between the mouthpiece 3 and the mouth, which could lead to insufficient sealing and allow medication to escape from gaps, reducing the inhaled medication dosage and affecting the treatment effect.
[0033] like Figure 3 and Figure 4As shown, the sealing baffle 203 has an arc-shaped elastic curved surface structure and is made of plastic. The sealing baffle 203 and the connecting sleeve 205 are an integral structure. The sealing gasket 204 is O-shaped and made of plastic. The sealing baffle 203 and the sealing gasket 204 are an integral structure. By setting the sealing baffle 203 as an arc-shaped elastic curved surface structure with an inwardly concave inclined arc in the middle, and the sealing gasket 204 set on the outer wall of the sealing baffle 203, the sealing baffle 203 can be tightly fitted to the mouth area under the action of the pushing arc plate 207 and the sealing push plate 208. This ensures the sealing effect at the connection between the mouth and the mouthpiece 3, and prevents the medication from escaping from the gaps when the patient inhales the medication, thus reducing the inhaled medication dosage and affecting the treatment effect.
[0034] like Figure 2 and Figure 4 As shown, the bottom of the annular sleeve 201 is provided with a limiting plate 211, and the outer wall of the drug delivery outer cylinder 1 is provided with a limiting groove 6 that matches the shape of the limiting plate 211. The limiting plate 211 is fixedly sleeved inside the limiting groove 6. The limiting plate 211 is an arc-shaped elastic curved surface structure and is made of plastic. The annular sleeve 201 and the limiting plate 211 are an integral structure.
[0035] The working principle of the technical solution provided by this utility model is as follows: In use, the auxiliary component 2 is fixed to the outer wall of the drug delivery outer cylinder 1 by means of the limiting plate 211. Then, the connecting sleeve 205 is placed inside the mouth and the sealing baffle 203 is squeezed. With the help of the elastic arc plate 202, the sealing baffle 203 can be fully contacted with the patient's face. At the same time, the sliding plate 206 and the pushing arc plate 207 are pushed, so that the pushing arc plate 207 deforms at the deformation groove 209, and then pushes the sealing push plate 208 to deform at the weakening groove 210. The sealing push plate 208 can push the outer side of the sealing baffle 203, so that the sealing baffle 203 and the sealing pad 204 can fit tightly with the patient's face, avoiding incomplete contact between the mouthpiece 3 and the mouth, which would result in insufficient sealing and cause the drug to escape from the gaps when the patient inhales the drug, reducing the inhaled drug dosage and affecting the treatment effect.
[0036] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.
[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An inhalation drug delivery device for respiratory and critical care medicine, characterized in that, The device includes an outer drug delivery cylinder and auxiliary components. One end of the outer drug delivery cylinder is provided with a suction nozzle, and a dust cover is fixedly sleeved on the outer wall of the suction nozzle. A drug storage tube is provided on the inner wall of the outer drug delivery cylinder. The auxiliary components include an annular sleeve plate, which is slidably sleeved on the outer wall of the suction nozzle. An elastic arc plate is provided on the top of the annular sleeve plate, and a sealing baffle is provided on one end of the elastic arc plate. A sealing gasket is provided on the outer wall of the sealing baffle, and a connecting sleeve is provided on the outer wall of the sealing baffle. A sealing push plate is provided on the top of the annular sleeve plate, and one end of the sealing push plate is connected to the outer wall of the sealing baffle.
2. The inhalation drug delivery device for respiratory and critical care medicine according to claim 1, characterized in that, The top of the annular sleeve is provided with a sliding plate, and the outer wall of the sliding plate is provided with a pushing arc plate, the outer wall of the pushing arc plate being in contact with the outer wall of the sealing push plate.
3. The inhalation drug delivery device for respiratory and critical care medicine according to claim 2, characterized in that, The inner wall of the pushing arc plate is provided with a deformation groove, which is located in the middle of the pushing arc plate.
4. The inhalation drug delivery device for respiratory and critical care medicine according to claim 3, characterized in that, The pushing arc plate is an arc-shaped elastic curved surface structure and is made of plastic. The pushing arc plate has an inwardly concave inclined arc in the middle.
5. The inhalation drug delivery device for respiratory and critical care medicine according to claim 1, characterized in that, The inner wall of the sealing pusher is provided with a weakening groove, which is located in the middle of the sealing pusher.
6. The inhalation drug delivery device for respiratory and critical care medicine according to claim 5, characterized in that, The sealing pusher has an arc-shaped elastic curved surface structure and is made of plastic. The sealing pusher has an inwardly concave inclined arc in the middle.
7. The inhalation drug delivery device for respiratory and critical care medicine according to claim 1, characterized in that, The sealing baffle has an arc-shaped elastic curved surface structure and is made of plastic. The sealing baffle and the connecting sleeve are an integral structure.
8. The inhalation drug delivery device for respiratory and critical care medicine according to claim 1, characterized in that, The sealing gasket is O-shaped and made of plastic, and the sealing baffle is an integral structure with the sealing gasket.
9. The inhalation drug delivery device for respiratory and critical care medicine according to claim 1, characterized in that, The bottom of the annular sleeve is provided with a limiting plate, and the outer wall of the drug delivery cylinder is provided with a limiting groove that matches the shape of the limiting plate. The limiting plate is fixedly sleeved inside the limiting groove.
10. The inhalation drug delivery device for respiratory and critical care medicine according to claim 9, characterized in that, The limiting plate has an arc-shaped elastic curved surface structure and is made of plastic. The annular sleeve plate and the limiting plate are an integral structure.