Replaceable nasal mucosa drug delivery device

Abstract

The utility model relates to the field of medical supplies, in particular to a replaceable nasal mucosa drug delivery device which comprises a shell, an inner core and a spray head, and a pressing pump is arranged in the middle of the upper end of the shell; the inner core is located in the shell and fixedly connected with the shell through a buckle, a medicine outlet pipe is arranged in the middle of the upper end of the inner core, one end of the medicine outlet pipe is communicated with the inner core, the other end of the medicine outlet pipe is communicated with a liquid inlet of the pressing pump, and a partition piece is arranged between the medicine outlet pipe and the pressing pump. A liquid outlet of the pressing pump is connected with a spraying pipe, the other end of the spraying pipe is connected with a spraying head, the other end of the spraying head is closed, and the side face of the spraying head is provided with a plurality of first spraying holes; the lower end of the bottle cap is connected with the shell, and the spray head is located in the bottle cap. According to the utility model, the irritation caused by medicine spraying and the discomfort of a patient are reduced, the repeated utilization rate of the device is improved, and the pollution risk and waste of the medicine are reduced.

Description

Technical Field

[0001] The utility model relates to the field of medical supplies, in particular to a replaceable nasal mucosal drug delivery device. Background Art

[0002] A nasal drug delivery device is a drug delivery device used to deliver drugs into the nasal cavity. With the continuous development of medical technology, nasal drug delivery devices are increasingly widely used in clinical practice.

[0003] Nasal administration has many advantages over other drug delivery methods. Through nasal administration, the drug can directly act on the lesion site in the nasal cavity, avoid the first-pass effect, and improve the bioavailability of the drug. At the same time, the nasal drug delivery device is simple to operate and easy to use, and is particularly suitable for patients who need long-term treatment.

[0004] However, the nozzle design of the nasal drug delivery devices currently on the market is often a single-direction linear drug delivery, which reduces the coverage of the drug on the nasal mucosa and makes it easy for the drug to enter the deep nasal cavity or even the oral cavity, causing significant irritation and discomfort. Since the drug is bound to the device, the device cannot be reused and has a low utilization rate. The drug in the device is easily contaminated during long-term administration. Some drugs are easily left on the wall of the device, resulting in drug waste. Utility Model Content

[0005] In order to solve the problems in the prior art that nasal drug delivery devices have a small coverage of the nasal mucosa, are prone to nasal and oral irritation and discomfort, have a low device utilization rate, and are prone to drug contamination and waste, the utility model proposes a replaceable nasal mucosal drug delivery device, which can achieve full coverage of the drug-receiving parts of the nasal mucosa, reduce the amount of drug entering the deep nasal cavity or even the oral cavity, thereby reducing the irritation caused by drug spraying and the patient's discomfort, improving the reuse rate of the device, and reducing the risk of drug contamination and waste.

[0006] In order to achieve the above purpose, the technical solution of the utility model is:

[0007] A replaceable nasal mucosal drug delivery device comprises an outer shell, an inner core and a spray head, wherein a pressing pump is arranged at the middle of the upper end of the outer shell;

[0008] The inner core is located inside the outer shell, and the inner core is fixedly connected to the outer shell by a buckle. A medicine outlet pipe is arranged in the middle of the upper end of the inner core, one end of the medicine outlet pipe is connected to the inner core, and the other end of the medicine outlet pipe is connected to the liquid inlet of the pressing pump, and a separator is arranged between the medicine outlet pipe and the pressing pump;

[0009] The liquid outlet of the press pump is connected to a nozzle, the other end of the nozzle is connected to a nozzle, the other end of the nozzle is closed, a plurality of first spray holes are opened on the side of the nozzle, the closed end of the nozzle is set as a truncated cone structure, and a plurality of second spray holes are set on the side of the truncated cone;

[0010] A bottle cap is arranged outside the spray head, the lower end of the bottle cap is connected to the shell, and the spray head is located inside the bottle cap.

[0011] Furthermore, the buckle includes a limit ring 1 and a limit ring 2, the limit ring 1 is fixedly connected to the upper end of the inner part of the shell, a plurality of inverted L-shaped grooves are provided on the outer side of the limit ring 1, the inverted L-shaped grooves include a vertical groove and a horizontal groove, the vertical groove is located at the lower outer side of the limit ring 1, the horizontal groove is located in the middle of the outer side of the limit ring 1, the limit ring 2 is fixedly connected to the upper end of the inner core, a plurality of protrusions are provided on the inner upper end of the limit ring 2, and the plurality of protrusions are respectively clamped in the corresponding inverted L-shaped grooves.

[0012] Furthermore, a base is provided at the lower end of the inner core, and the lower end of the base expands outward to form a mounting ring, and the mounting ring is connected to the lower end of the outer shell to further fix the inner core.

[0013] Furthermore, the separator includes a plurality of overlapping films, the films are fixedly connected to the medicine outlet tube, the films are sheet structures made of medical grade silicone material, and a plurality of overlapping films form a Y-shaped pre-opening, and the inner core and the pressing pump are separated by the separator.

[0014] Furthermore, a support sheet is arranged inside the inner core, and a sealing ring is arranged around the support sheet. The support sheet rises as the amount of medicine decreases, thereby preventing the medicine from remaining on the wall.

[0015] Furthermore, the spray hole 1 and the spray hole 2 are both truncated cone structures with a small inner side and a large outer side, so as to realize the spray dispersion of the medicine.

[0016] Furthermore, a pressing head is arranged between the pressing pump and the nozzle, and the pressing head is located above the middle part of the shell. A connecting pipe is arranged inside the pressing head, one end of the connecting pipe is connected to the pressing pump, and the other end of the connecting pipe is connected to the nozzle, and the middle part of the nozzle is bent inward.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model achieves full coverage of the drug receiving part of the nasal mucosa by the drug by providing a plurality of spray holes one and two; and reduces the amount of drug entering the deep nasal cavity or even the oral cavity by sealing one end of the spray head, thereby reducing the irritation of the drug and the discomfort of the patient.

[0019] The utility model can save production materials, reduce production costs, avoid unnecessary waste, and improve the reuse rate of the device by arranging a replaceable inner core.

[0020] The utility model can seal the medicine in the inner core by arranging a partition between the medicine outlet tube and the pressing pump, thereby reducing the risk of medicine contamination.

[0021] The utility model avoids the residue of the medicine hanging on the wall and reduces the waste of the medicine by means of the supporting sheet which is arranged inside the inner core and can rise as the medicine decreases. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of a replaceable nasal mucosal drug delivery device of the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of a replaceable nasal mucosal drug delivery device of the utility model;

[0024] Figure 3 The utility model is a replaceable nasal mucosal drug delivery device Figure 2 The enlarged schematic diagram of point A in the middle;

[0025] Figure 4 This is a three-dimensional assembly diagram of a replaceable nasal mucosal drug delivery device of the utility model;

[0026] Figure 5 This is a schematic diagram of the practical application of a replaceable nasal mucosal drug delivery device of the utility model;

[0027] Figure 6 It is a cross-sectional schematic diagram of a housing in a replaceable nasal mucosal drug delivery device of the utility model;

[0028] Figure 7 It is a schematic diagram of a nozzle in a replaceable nasal mucosal drug delivery device of the utility model;

[0029] Figure 8 The utility model is a schematic diagram of an inner core in a replaceable nasal mucosal drug delivery device.

[0030] The reference numerals in the accompanying drawings are:

[0031] 1 is the outer shell, 2 is the inner core, 3 is the nozzle, 4 is the pressing pump, 5 is the medicine outlet tube, 6 is the separator, 7 is the nozzle, 8 is the bottle cap, 9 is the buckle, 901 is the limiting ring 1, 902 is the limiting ring 2, 10 is the mounting ring, 11 is the pressing head, and 12 is the support sheet. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0033] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "horizontal", "vertical" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention. Example

[0034] like Figures 1 to 8 As shown, a replaceable nasal mucosal drug delivery device comprises a shell 1, an inner core 2 and a spray head 3, wherein a pressing pump 4 is arranged at the middle of the upper end of the shell 1;

[0035] The inner core 2 is located inside the outer shell 1, and the inner core 2 is fixedly connected to the outer shell 1 through a buckle 9. A medicine outlet pipe 5 is provided in the middle of the upper end of the inner core 2. One end of the medicine outlet pipe 5 is connected to the inner core 2, and the other end of the medicine outlet pipe 5 is connected to the liquid inlet of the pressing pump 4. A separator 6 is provided between the medicine outlet pipe 5 and the pressing pump 4.

[0036] The liquid outlet of the press pump 4 is connected to a nozzle 7, the other end of the nozzle 7 is connected to the nozzle head 3, the other end of the nozzle head 3 is closed, a plurality of spray holes 1 are opened on the side of the nozzle head 3, and the closed end of the nozzle head 3 is set as a truncated cone structure, and a plurality of spray holes 2 are set on the side of the truncated cone;

[0037] A bottle cap 8 is disposed outside the spray head 3 , the lower end of the bottle cap 8 is connected to the housing 1 , and the spray head 3 is located inside the bottle cap 8 .

[0038] In addition, further, the buckle 9 includes a limit ring 1 901 and a limit ring 2 902, the limit ring 1 901 is fixedly connected to the upper end of the inner part of the outer shell 1, and a plurality of inverted L-shaped grooves are provided on the outer side of the limit ring 1, and the inverted L-shaped grooves include a vertical groove and a horizontal groove, the vertical groove is located at the lower outer side of the limit ring 1, and the horizontal groove is located at the middle outer side of the limit ring 1, the limit ring 2 902 is fixedly connected to the upper end of the inner core 2, and a plurality of protrusions are provided on the upper end of the inner part of the limit ring 2, and the plurality of protrusions are respectively clamped in the corresponding inverted L-shaped grooves. When installing and disassembling the inner core 2, the protrusions are first clamped into the vertical grooves and then moved to the horizontal grooves for locking. By providing a replaceable inner core 2, production materials can be saved, production costs can be reduced, unnecessary waste can be avoided, and the reuse rate of the device can be improved.

[0039] Specifically, a base is provided at the lower end of the inner core 2 , and the lower end of the base expands outward to form a mounting ring 10 . The mounting ring 10 is connected to the lower end of the outer shell 1 to further fix the inner core 2 and connect the inner core 2 and the outer shell 1 .

[0040] In this embodiment, the separator 6 includes a plurality of overlapping films, which are fixedly connected to the medicine outlet tube 5. The film is a sheet structure made of medical grade silicone material. A plurality of overlapping films form a Y-shaped pre-opening. The inner core 2 and the pressing pump 4 are separated by the separator 6, and the medicine in the inner core 2 can be sealed, thereby reducing the risk of drug contamination.

[0041] In this embodiment, a support sheet 12 is disposed inside the inner core 2. A sealing ring is disposed around the support sheet 12. The support sheet 12 rises as the amount of the medicine decreases, thereby preventing the medicine from remaining on the wall.

[0042] In this embodiment, the spray hole 1 and the spray hole 2 are both truncated cone structures with a small inside and a large outside, which increases the spraying range of the spray hole 1 and the spray hole 2, and can refine the spray to achieve uniform drug delivery.

[0043] In this embodiment, a pressing head 11 is arranged between the pressing pump 4 and the nozzle 7. The pressing head 11 is located above the middle part of the outer shell 1. A connecting tube is arranged inside the pressing head 11. One end of the connecting tube is connected to the pressing pump 4, and the other end of the connecting tube is connected to the nozzle 7. The pressing head 11 is used to facilitate pressing the pressing pump 4. The middle part of the nozzle 7 is bent inward to facilitate the drug administration operation of the nozzle 3.

[0044] Please refer to the actual application Figures 1 to 8 First, insert the inner core 2 into the outer shell 1; then, rotate the inner core 2 so that the limiting ring 1 901 and the limiting ring 2 902 are locked with each other, thus completing the installation of the inner core 2; finally, connect the pressing head 11 and the nozzle 7;

[0045] When using the medicine, open the bottle cap 8, extend the spray head 3 into the nasal cavity, squeeze the pressing head 11 after reaching the medication site, and squeeze the pressing pump 4 through the pressing head 11 to spray the medicine on the nasal mucosa. After spraying, buckle the bottle cap 8 to protect the spray head 3 inside the bottle cap 8;

[0046] Compared with the nasal drug delivery devices currently on the market, the present application can achieve full coverage of the drug-receiving parts of the nasal mucosa, reduce the amount of drug entering the deep nasal cavity or even the oral cavity, thereby reducing the irritation caused by the spraying of the drug and the patient's discomfort, improve the reuse rate of the device, and reduce the risk of drug contamination and waste.

[0047] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A replaceable nasal mucosal drug delivery device, characterized in that: It comprises an outer shell (1), an inner core (2) and a nozzle (3), wherein a pressing pump (4) is provided in the middle of the upper end of the outer shell (1); The inner core (2) is located inside the outer shell (1), and the inner core (2) is fixedly connected to the outer shell (1) via a buckle (9). A medicine outlet pipe (5) is provided in the middle of the upper end of the inner core (2), one end of the medicine outlet pipe (5) is connected to the inner core (2), and the other end of the medicine outlet pipe (5) is connected to the liquid inlet of the pressing pump (4), and a partition (6) is provided between the medicine outlet pipe (5) and the pressing pump (4); The liquid outlet of the pressure pump (4) is connected to a nozzle (7), the other end of the nozzle (7) is connected to the nozzle head (3), the other end of the nozzle head (3) is closed, a plurality of first spray holes are opened on the side of the nozzle head (3), the closed end of the nozzle head (3) is arranged in a truncated cone structure, and a plurality of second spray holes are arranged on the side of the truncated cone; A bottle cap (8) is arranged outside the spray head (3); the lower end of the bottle cap (8) is connected to the outer shell (1); and the spray head (3) is located inside the bottle cap (8).

2. A replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: The buckle (9) comprises a first limiting ring (901) and a second limiting ring (902), wherein the first limiting ring (901) is fixedly connected to the upper end of the inner part of the outer shell (1), and a plurality of inverted L-shaped grooves are provided on the outer side of the first limiting ring, and the second limiting ring (902) is fixedly connected to the upper end of the inner core (2), and a plurality of protrusions are provided on the upper end of the inner part of the second limiting ring (902), and the plurality of protrusions are respectively clamped in the corresponding inverted L-shaped grooves.

3. A replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: The lower end of the inner core (2) is provided with a base, the lower end of the base expands outwards to form a mounting ring (10), and the mounting ring (10) is connected to the lower end of the outer shell (1).

4. A replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: The separator (6) comprises a plurality of films overlapping each other, and the films are fixedly connected to the medicine outlet tube (5).

5. The replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: A support sheet (12) is arranged inside the inner core (2), and a sealing ring is arranged around the support sheet (12).

6. The replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: The first spray hole and the second spray hole are both truncated cone structures with a small inner side and a large outer side.

7. The replaceable nasal mucosal drug delivery device according to claim 1, characterized in that: A pressing head (11) is arranged between the pressing pump (4) and the nozzle (7), and the pressing head (11) is located above the middle of the housing (1). A connecting pipe is arranged inside the pressing head (11), one end of the connecting pipe is connected to the pressing pump (4), and the other end of the connecting pipe is connected to the nozzle (7).

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