Directional drug delivery device based on 3D printing

Abstract

The utility model discloses a directional dosing device based on 3D printing, comprising a mist storage tank, the bottom of the mist storage tank is inserted with a switching base, the middle position of the bottom of the switching base is provided with an air inlet pipe, the upper part of the mist storage tank is fixedly provided with a low-resistance air valve, the low-resistance air valve is fixedly provided with a mouth biting pipe, and the mouth biting pipe is fixedly provided with an air inlet pipe. The mouth biting pipe is in threaded connection with an air suction mask, a second mouth biting pipe is fixed in the air suction mask and communicates with the mouth biting pipe, and a plurality of air outlets are formed in the side wall of the second mouth biting pipe. The air suction mask is integrally formed through 3D printing, the sealing performance and comfort of the mask are higher, and the attaching effect is better; a patient can hold the second bite tube in the mouth while inhaling medicine by adopting the mask type dosing device, so that the patient can learn and adapt to the bite type dosing device as soon as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary devices, and in particular to a directional drug delivery device based on 3D printing. Background Art

[0002] Asthma and chronic obstructive pulmonary disease are the two respiratory diseases that have the most serious impact on patients. With the great development of new technologies in lung inhalation drug delivery, the majority of patients also prefer to use metered dose inhaler (MDI) inhalation targeted drug delivery to treat lung and bronchial diseases.

[0003] MDI directional drug delivery devices are generally divided into oral and mask types. Oral tube atomization directional inhalation therapy is used. The drug is directly inhaled through the mouth to reach the lower respiratory tract without passing through the nasal cavity. The air flow rate is significantly greater than the air flow through the nose. The mechanical obstruction and the existence of many dead cavities in the nose cause the drug to be retained in the nasal cavity, resulting in drug loss and waste. Therefore, the drug delivery efficiency of the oral type is much better than that of the mask type.

[0004] The main purpose of using a mask type is to adapt to patients of different age groups, especially for young children who cannot adapt to the use of a mouthpiece tube. The use of a mask can ensure that the drug is inhaled into the lungs through breathing. Although its drug delivery efficiency is relatively low, it is a necessary choice. As age increases, the transition to a mouthpiece tube should be made as soon as possible. Our company aims to design a directional drug delivery device that helps patients adapt to the mouthpiece type drug delivery device as quickly as possible. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the present invention provides a directional drug delivery device based on 3D printing to improve the above-mentioned problems.

[0006] The utility model is achieved through the following technical solutions:

[0007] A directional drug delivery device based on 3D printing, comprising a spacer, a transfer base being connected to the bottom of the spacer, an air inlet pipe being provided in the middle position of the bottom of the transfer base, a plurality of air inlet holes being provided on the side wall of the air inlet pipe, a spiral guide plate being provided on the transfer base, the air inlet holes being located at the bottom of the guide plate, the air inlet holes and the guide plate being both inserted into the spacer, the air inlet pipe being connected to the spacer through the air inlet holes, a low-resistance air valve being fixed to the upper part of the spacer, a mouthpiece being fixed to the low-resistance air valve, an inhalation mask being threadedly connected to the mouthpiece, a second mouthpiece being fixed in the inhalation mask, the second mouthpiece being connected to the mouthpiece, and a plurality of air outlet holes being provided on the side wall of the second mouthpiece.

[0008] Further optimized, the inhalation mask and the second mouthpiece are integrally printed using 3D printing.

[0009] Further optimized, the inhalation mask is printed into a cartoon shape.

[0010] For further optimization, a transfer thread is provided on the outer side wall of the bottom of the air intake pipe.

[0011] Further optimized, the upper end of the spacer is connected to a mouthpiece tube cover.

[0012] Further optimized, the lower end of the spacer tank is connected to a bottom cover.

[0013] Further optimized, an antistatic coating is sprayed on the inner wall of the spacer.

[0014] For further optimization, the mouthpiece tube cover, bottom cover and adapter base are all made of TPE material.

[0015] The beneficial effects of the utility model are:

[0016] This new drug delivery device consists of three parts: a drug reservoir, an adapter base and a mask. The adapter base is equipped with a guide plate to generate vortexes. By cooperating with the spacer tank to increase the distance between the MDI and the child, the liquid compressed gas can be vaporized more fully, which is conducive to inhalation and can help improve drug delivery efficiency. The inhalation mask is formed in one piece using 3D printing. The mask has a higher sealing and comfort, and a better fitting effect, which can prevent drug overflow and residue on the face or eyes, causing other side effects.

[0017] The new mask is equipped with a second mouthpiece tube inside, and a number of air outlet holes are opened at the root of the second mouthpiece tube. The patient can hold the second mouthpiece tube in his mouth while inhaling medicine using the mask-type drug delivery device, so as to learn and adapt to the mouthpiece drug delivery device as soon as possible. When the patient is accustomed to using the mouthpiece drug delivery device, he can directly remove the mask and inhale through the mouthpiece tube; the inhalation mask is formed in one piece by 3D printing, and can be printed into various cartoon shapes, which is suitable for use by young children. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure decomposition of the utility model Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure decomposition of the utility model Figure 2 .

[0020] Figure 3 It is a structural schematic diagram of the mask in this utility model.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the transfer base in the utility model.

[0022] In the figure: 1. Spacer; 11. Low-resistance air valve; 12. Bite tube; 13. Bottom cover; 14. Bite tube cover; 2. Inhalation mask; 21. Second bite tube; 22. Air outlet; 3. Adapter base; 31. Guide plate; 32. Inlet pipe; 33. Adapter thread; 34. Inlet. DETAILED DESCRIPTION

[0023] To clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings. It should be noted that in the description of this invention, the terms "left," "right," "front," "back," "inside," "outside," and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on this invention.

[0024] like Figures 1-4 As shown, the utility model provides a directional drug delivery device based on 3D printing, including a spacer 1, a transfer base 3 is plugged into the bottom of the spacer 1, an air inlet pipe 32 is provided in the middle position of the bottom of the transfer base 3, and a plurality of air inlet holes 34 are opened on the side wall of the air inlet pipe, and a spiral guide plate 31 is provided on the transfer base 3, and the air inlet holes 34 are located at the bottom of the guide plate. The air inlet holes 34 and the guide plate 31 are both inserted into the spacer 1, and the upper end of the air inlet pipe 32 is closed and communicated with the spacer 1 through the air inlet holes 34. The air supply pipe of the metered dose inhaler (MDI) is connected to the air inlet pipe to supply aerosol to the drug delivery device. The guide plate can generate vortex, and cooperate with the spacer to increase the distance between the MDI and the child, so that the gasification of the liquid compressed gas is more sufficient, which is conducive to inhalation and can help improve the drug delivery efficiency.

[0025] A low-resistance air valve 11 is fixed on the upper part of the spacer 1, a mouthpiece tube 12 is fixed on the low-resistance air valve, and an inhalation mask 2 is threadedly connected to the mouthpiece tube, which is convenient for disassembly and assembly, and can be used as a mask or as a mouthpiece drug dispenser.

[0026] A second mouthpiece tube 21 is fixed inside the inhalation mask 1, and the second mouthpiece tube is connected to the mouthpiece tube 12. A plurality of air outlet holes 22 are provided on the side wall of the second mouthpiece tube 21. When a patient wears the inhalation mask and holds the second mouthpiece tube 21 in his mouth, it does not affect the spraying of aerosol from the air outlet holes 22. This can help first-time users or young patients to learn and adapt to the oral medication dispenser as quickly as possible. After the patient has adapted to using the oral medication dispenser, he can directly discard the inhalation mask and use the mouthpiece tube 12 to inhale the aerosol.

[0027] As a preferred embodiment, the inhalation mask 2 and the second bite tube 21 are integrally printed using 3D printing. The outer wall of the inhalation mask can be printed into various cartoon shapes, which is suitable for use by young children. The mask is made of silicone material, which has higher sealing and comfort, fits the skin well, and avoids drug spillage, residue on the face or eyes, and causes other side effects.

[0028] As a preferred embodiment, a connecting thread 33 is provided on the outer side wall of the bottom of the air inlet pipe 32 to facilitate connection with the air supply pipe of a metered dose inhaler (MDI).

[0029] As a preferred embodiment, the upper end of the spacer 1 is connected to a mouthpiece tube cover 14, and the lower end of the spacer 1 is connected to a bottom cover 13. After use, the spacer 1 is cleaned and then covered with a cover to maintain hygiene.

[0030] As a preferred embodiment, an antistatic coating is sprayed on the inner wall of the aerosol storage tank 1 to prevent aerosol from being retained and condensed.

[0031] As a preferred embodiment, the oral tube cover 14, the bottom cover 13 and the adapter base 3 are all made of TPE material, and can also be printed and formed by 3D printing. They are soft, elastic and easy to use.

[0032] Any matters not described in detail in this utility model are well-known technologies to those skilled in the art. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not limiting. Although this utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of this utility model can be modified or replaced with equivalents without departing from the purpose and scope of the technical solutions of this utility model, and all such modifications should be included in the scope of the claims of this utility model.

Claims

1. A directional drug delivery device based on 3D printing, including a spacer, characterized in that: A transfer base is inserted into the bottom of the mist storage tank, an air intake pipe is provided in the middle position of the bottom of the transfer base, a plurality of air intake holes are opened on the side wall of the air intake pipe, a spiral guide plate is provided on the transfer base, the air intake hole is located at the bottom of the guide plate, the air intake hole and the guide plate are both inserted in the mist storage tank, the air intake pipe is connected with the mist storage tank through the air intake hole, a low-resistance air valve is fixed on the upper part of the mist storage tank, a mouthpiece is fixed on the low-resistance air valve, an inhalation mask is threadedly connected to the mouthpiece, a second mouthpiece is fixed in the inhalation mask, the second mouthpiece is connected to the mouthpiece, and a plurality of air outlet holes are opened on the side wall of the second mouthpiece.

2. The directional drug delivery device based on 3D printing according to claim 1, characterized in that: The inhalation mask and the second mouthpiece are integrally printed using 3D printing.

3. The directional drug delivery device based on 3D printing according to claim 2, characterized in that: The inhalation mask is printed into a cartoon shape.

4. The directional drug delivery device based on 3D printing according to claim 1, characterized in that: An adapter thread is provided on the outer side wall of the bottom of the air inlet pipe.

5. The directional drug delivery device based on 3D printing according to claim 1, characterized in that: The upper end of the spacer is connected with a mouthpiece tube cover.

6. The directional drug delivery device based on 3D printing according to claim 5, characterized in that: The lower end of the spacer is connected with a bottom cover.

7. The directional drug delivery device based on 3D printing according to claim 1, characterized in that: An antistatic coating is sprayed on the inner wall of the spacer.

8. The directional drug delivery device based on 3D printing according to claim 6, characterized in that: The mouthpiece tube cover, bottom cover and adapter base are all made of TPE material.

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