Nasal cavity administration device

Abstract

The utility model relates to the technical field of medical local medicine applying instruments, in particular to a nasal cavity medicine applying device which is used in cooperation with moist burn cream and a pressurizing empty needle and comprises a medicine applying pipe and a switching component, the medicine applying pipe is a through pipe body, the first end of the medicine applying pipe is a connecting end, and the second end of the medicine applying pipe is a medicine outlet end suitable for stretching into the nasal cavity; the adapter part can selectively connect the connecting end of the administration tube to the ointment outlet of the moist burn ointment or connect the connecting end of the administration tube to the needle head of the pressurizing empty needle. According to the technical scheme, after medicine applying is completed, a user connects the connecting end of the medicine applying pipe to the needle head of the pressurizing empty needle through the switching part, then pressurizing is conducted in the medicine applying pipe through the pressurizing empty needle, residual ointment in the medicine applying pipe can be blown out, and it is ensured that the interior of the medicine applying device is clean.

Description

Technical Field

[0001] This utility model relates to the field of medical local drug delivery devices, specifically to a nasal drug delivery device. Background Technology

[0002] In surgeries for nasal cavity, sinus, nasopharyngeal, and skull base tumors, the need for thorough removal of diseased tissue often results in exposed bone in the surgical area. This is especially true after radiotherapy for malignant tumors, which further damages the nasal mucosa, causing loss of mucosal drainage and moisturizing functions. Consequently, postoperative and radiotherapy-related nasal crusting is common, leading to nasal dryness, odor, and mucosal dysfunction. Currently, there are no drug delivery devices for deep cavities in otolaryngology skull base surgery for tumor patients. While moist burn ointments can promote mucosal regeneration, traditional drug delivery devices (such as cotton swabs) cannot accurately reach the exposed bone areas deep within the nasal cavity under endoscopic visualization. Although some existing technologies employ insertable tubular drug delivery devices, these devices do not conform to nasal anatomy, leave residues during drug delivery, and are difficult to clean, posing challenges and limitations to their application in otolaryngology skull base surgery. To address these issues, this invention proposes a nasal drug delivery device for nasal cavity, sinus, and skull base tumors. Utility Model Content

[0003] The purpose of this invention is to provide a nasal delivery device to solve the problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A nasal delivery device for use with moist burn ointment and a pressurized syringe includes a delivery tube and an adapter. The delivery tube is a through tube with a first end as a connecting end and a second end as a dispensing end suitable for insertion into the nasal cavity. The adapter can optionally connect the connecting end of the delivery tube to the outlet of the moist burn ointment or to the needle of the pressurized syringe.

[0006] Optionally, the adapter includes a first adapter and a second adapter. The first adapter has two interconnected threaded interfaces, one of which is adapted to be threadedly connected to the connecting end of the administration tube, and the other threaded interface is adapted to be threadedly connected to the outlet of the moist burn ointment. The second adapter has an interconnected threaded interface and a socket. The threaded interface of the second adapter is adapted to be threadedly connected to the connecting end of the administration tube, and the socket is adapted to the shape of the needle of the pressurized needle.

[0007] Optionally, the two threaded interfaces of the first adapter are coaxially arranged and rotate in opposite directions.

[0008] Optionally, the adapter includes a first adapter and a second adapter that are rotatably connected to each other. The first adapter has an independent threaded interface and a smooth-walled insertion hole. The threaded interface is adapted to be threadedly connected to the connecting end of the administration tube. The insertion hole is adapted to the shape of the needle tip of the pressurized needle. The second adapter has a threaded interface adapted to be threadedly connected to the connecting end of the administration tube. When the second adapter rotates relative to the first adapter, the threaded interface of the second adapter can be selectively connected to either the threaded interface of the first adapter or the insertion hole.

[0009] Optionally, the first adapter and the second adapter are rotatably connected by a rotating shaft.

[0010] Optionally, the threaded interface of the first adapter has the opposite rotation direction to the threaded interface of the second adapter.

[0011] Optionally, the administration tube is screwed into the threaded interface of the second adapter and then abuts against the outlet of the first adapter or the moist burn ointment.

[0012] Optionally, the administration tube includes a straight administration tube and a bent administration tube, wherein the dispensing end of the bent administration tube is bent.

[0013] Optionally, the drug dispensing end of the drug dispensing tube is provided with a brush head, the brush head including a connecting sleeve fitted on the drug dispensing end of the drug dispensing tube and bristles disposed outside the connecting sleeve, and a drug dispensing hole is provided on the connecting sleeve located in the middle of the bristles.

[0014] Optionally, the connecting sleeve is made of rubber, and multiple locking holes are provided circumferentially on the side wall of the connecting sleeve. The outer wall of the drug dispensing end of the drug delivery tube has a protrusion that is suitable for locking into the locking holes.

[0015] Compared with the prior art, the present invention provides a nasal delivery device with the following advantages:

[0016] 1. The nasal delivery device of this utility model includes a delivery tube and an adapter. The adapter can be used to connect the end of the delivery tube to the outlet of a moist burn ointment or to the needle of a pressurized syringe. After applying the ointment, the user can connect the end of the delivery tube to the needle of the pressurized syringe through the adapter and then pressurize the delivery tube through the pressurized syringe to blow out any residual ointment, thus ensuring the cleanliness of the inside of the delivery device.

[0017] 2. The two threaded interfaces of the first adapter of this utility model are coaxially arranged and rotate in opposite directions. When disassembling and assembling the nasal administration device and the moist burn ointment, it is only necessary to fix the administration tube and the moist burn ointment at the same time, and then rotate the first adapter to install or unscrew the administration tube and the moist burn ointment on the first adapter simultaneously;

[0018] 3. The drug delivery tube of this invention includes a straight-tipped tube and a curved-tipped tube. The straight-tipped tube is suitable for applying drugs to the anterior and superficial areas of the nasal cavity, while the curved-tipped tube can reach deeper into the posterior nasal cavity. The combined use of the straight and curved-tipped tubes not only expands the application range of the nasal delivery device but also improves the accuracy and safety of drug delivery. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the drug delivery tube and the moist burn ointment in Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the drug delivery tube and the pressurized syringe in Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the first and second adapters in Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the straight-tip and bent-tip drug delivery tubes according to Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the brush head and the drug dispensing end of the drug delivery tube of this utility model.

[0024] Figure 6 This is a three-dimensional structural diagram of Embodiment 2 of the present invention;

[0025] Figure 7 This is a cross-sectional structural diagram of Embodiment 2 of the present invention.

[0026] In the diagram: Moist burn ointment-10; Ointment outlet-11; Drug delivery tube-20; Connecting end-21; Dispensing end-22; Protrusion-220; First adapter-(30, 31); Second adapter-(40, 41); Pressure needle-50; Needle-51; Rotating shaft-60; Brush head-70; Connecting sleeve-71; Brush bristles-72; Locking hole-73; Dispensing hole-74. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Please see Figures 1 to 3 According to an embodiment of this utility model, a nasal delivery device is provided for use with a moist burn ointment 10 and a pressurized syringe 50. The moist burn ointment 10 includes an ointment box that can be deformed by compression and an ointment outlet 11 for discharging the medication. For example, the moist burn ointment 10 can be an aluminum-plastic tube with a specification of 40g / tube. The ointment outlet 11 adopts an M6×0.5 external thread design. The pressurized syringe 50 is a common syringe barrel form. The nasal delivery device includes a delivery tube 20 and an adapter component. The delivery tube 20 is a through tube, with a first end 21 as a connecting end and a second end 22 suitable for extending into the nasal cavity. The adapter component can selectively connect the connecting end 21 of the delivery tube 20 to the ointment outlet 11 of the moist burn ointment 10 or to the needle 51 of the pressurized syringe 50.

[0030] Using the nasal applicator with the above structure, the user connects the connecting end 21 of the applicator tube 20 to the outlet 11 of the moist burn ointment 10 via an adapter. Then, the user gently inserts the dispensing end 22 of the applicator tube 20 into the patient's nasal cavity, aligns it with the area where the medication needs to be applied, and squeezes the moist burn ointment 10 to accurately apply the medication to the affected area. After application, the user connects the connecting end 21 of the applicator tube 20 to the needle 51 of the pressurized syringe 50 via the adapter. The user then applies pressure to the applicator tube 20 through the pressurized syringe 50, which blows out any residual ointment from the applicator tube 20, ensuring the cleanliness of the applicator.

[0031] like Figure 3 As shown, the adapter includes a first adapter 30 and a second adapter 40. The first adapter 30 has two interconnected threaded interfaces, one of which is adapted to be threadedly connected to the connection end 21 of the administration tube 20, and the other threaded interface is adapted to be threadedly connected to the outlet 11 of the moist burn ointment 10. The second adapter 40 has one interconnected threaded interface and one insertion hole. The threaded interface of the second adapter 40 is adapted to be threadedly connected to the connection end 21 of the administration tube 20, and the insertion hole is adapted to the shape of the needle 51 of the pressurized syringe 50. With this configuration, when applying the ointment, the outlet 11 of the moist burn ointment 10 and the connection end 21 of the administration tube 20 are respectively threaded to the threaded interfaces at both ends of the first adapter 30. The moist burn ointment 10 and the administration tube 20 are connected and communicated through the first adapter 30. In this way, the medicine squeezed out from the moist burn ointment 10 can be accurately delivered to the affected area in the nasal cavity through the administration tube 20. When the application of the medicine is complete, unscrew the moist burn ointment 10 and the administration tube 20 from the first adapter 30, then screw the administration tube 20 onto the threaded interface of the second adapter 40. At the same time, insert the needle 51 of the pressurizing syringe 50 into the socket of the second adapter 40, and then operate the pressurizing syringe 50 to pressurize the administration tube 20, so as to expel the remaining medicine as soon as possible.

[0032] To improve the efficiency of assembling the administration tube 20 with the moist burn ointment 10, the two threaded interfaces of the first adapter 30 are coaxially arranged and rotate in opposite directions. With this configuration, when connecting the nasal applicator to the moist burn ointment 10, the connecting end 21 of the administration tube 20 and the outlet 11 of the moist burn ointment 10 are pressed against the two threaded interfaces of the first adapter 30 by hand, restricting the rotation of the administration tube 20 and the moist burn ointment 10. Then, rotating the first adapter 30 allows the administration tube 20 and the moist burn ointment 10 to be simultaneously tightened onto the first adapter. For disassembly, simply fix the administration tube 20 and the moist burn ointment 10 simultaneously, then rotate the first adapter in the opposite direction to simultaneously unscrew the administration tube 20 and the moist burn ointment 10 from the first adapter.

[0033] To apply to different parts of the nasal cavity, such as Figure 4 As shown, the drug delivery tube 20 includes a straight-tipped tube 20 and a curved-tipped tube 20. The dispensing end 22 of the curved-tipped tube 20 is bent; specifically, the bending angle of the dispensing end 22 is 30° to 60°, and the bending radius is 15mm. The straight-tipped tube 20 is suitable for applying medication to the anterior and superficial areas of the nasal cavity, while the curved-tipped tube 20 can reach deeper into the posterior nasal cavity. The combined use of the straight-tipped and curved-tipped tubes 20 not only expands the application range of the nasal delivery device but also improves the accuracy and safety of drug delivery. It can easily handle lesions both in the anterior and posterior nasal cavities.

[0034] like Figure 5 As shown, considering that clumps of medication are difficult to remain on the affected area for a long time, a brush head 70 is provided at the dispensing end 22 of the medication delivery tube 20. The brush head 70 includes a connecting sleeve 71 fitted onto the dispensing end 22 of the medication delivery tube 20 and bristles 72 disposed outside the connecting sleeve 71. A dispensing hole 74 is provided on the connecting sleeve 71 located in the middle of the bristles 72. With this configuration, when the user squeezes the medication through the medication delivery tube 20, the medication will first reach the affected area through the dispensing hole 74. At the same time, the brush head 70 can evenly spread the medication, prolonging the residence time of the medication on the affected area and improving the treatment effect.

[0035] Furthermore, to facilitate the installation and removal of the brush head 70, the connecting sleeve 71 is made of rubber. Multiple locking holes 73 are circumferentially formed on the side wall of the connecting sleeve 71, and the outer wall of the drug dispensing end 22 of the administration tube 20 has a protrusion 220 suitable for engaging with the locking holes 73. This design allows the brush head 70 to be easily installed onto the drug dispensing end 22 of the administration tube 20 through the elastic deformation of the connecting sleeve 71. Because the rubber connecting sleeve 71 has good resilience, once the protrusion 220 engages with the locking hole 73, it forms a stable locking state, preventing the brush head 70 from loosening or falling off during operation. Even when applying medication in the complex environment of the nasal cavity, the brush head 70 remains stable and will not shift due to friction or other external forces.

[0036] Example 2:

[0037] The difference from Embodiment 1 lies in the specific structural form of the adapter component. In Embodiment 2, for example... Figure 6 and Figure 7 As shown, the adapter components include a first adapter 31 and a second adapter 41 that are rotatably connected to each other. Specifically, the first adapter 31 and the second adapter 41 are rotatably connected via a shaft 60, a pin, or the like. The first adapter 31 has an independent threaded interface and a smooth-walled insertion hole. The threaded interface is adapted to be threadedly connected to the connection end 21 of the administration tube 20, and the insertion hole is adapted to the shape of the needle 51 of the pressurized empty needle 50. The second adapter 41 has a threaded interface adapted to be threadedly connected to the connection end 21 of the administration tube 20. When the second adapter 41 rotates relative to the first adapter 31, the threaded interface of the second adapter 41 can be selectively connected to either the threaded interface or the insertion hole of the first adapter 31. In actual operation, the outlet 11 of the moist burn ointment 10 is first threadedly connected to the threaded interface of the first adapter 31, and the connection end 21 of the administration tube 20 is simultaneously threadedly connected to the threaded interface of the second adapter 41. By rotating the second adapter 41, the moist burn ointment 10 is connected to the administration tube 20, thereby enabling precise delivery of the medication to the affected area in the nasal cavity through the administration tube 20. After application, the outlet 11 of the moist burn ointment 10 is unscrewed from the first adapter 31, and the second adapter 41 is rotated to connect its threaded interface with the insertion hole of the first adapter 31. The needle 51 of the pressurized syringe 50 is then inserted into the insertion hole. The pressurized syringe 50 is operated to apply pressure to the administration tube 20, promoting the rapid discharge of residual medication and ensuring the cleanliness of the device. Compared to the adapter component of Embodiment 1, the adapter component of Embodiment 2 eliminates the need for frequent disassembly and reassembly of the administration tube 20, making it more convenient to use.

[0038] In this embodiment, the threaded interface of the first adapter 31 and the threaded interface of the second adapter 41 have opposite rotation directions. The purpose of this design is roughly the same as the design purpose of the two threaded interfaces of the first adapter 31 in Embodiment 1 being coaxially arranged and having opposite rotation directions, both being to improve the efficiency of assembling the drug delivery tube 20 and the moist burn ointment 10.

[0039] In addition, such as Figure 7 As shown, the administration tube 20 is screwed into the threaded interface of the second adapter 41 and then pressed against the outlet 11 of the first adapter 31 or the moist burn ointment 10. This arrangement serves two purposes: firstly, the tight contact between the administration tube 20 and the first adapter 31 effectively improves the sealing at the interface, preventing drug leakage; secondly, the pressing action of the administration tube 20 restricts the relative rotation between the first adapter 31 and the second adapter 41, ensuring stability during operation and avoiding inaccurate drug delivery due to rotation.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A nasal applicator for use with a moist burn ointment (10) and a pressurized air needle (50), characterized in that, The application relates to a wet burn cream delivery device, comprising: a delivery tube (20) which is a through tube body, a first end of the delivery tube (20) being a connecting end (21) and a second end being a delivery end (22) suitable for extending into the inside of a nasal cavity; and an adapter component which can selectively connect the connecting end (21) of the delivery tube (20) to the cream outlet (11) of the wet burn cream (10) or to the needle (51) of the pressurized air needle (50).

2. The nasal drug delivery device of claim 1, wherein: The adapter component comprises a first adapter head (30) and a second adapter head (40), the first adapter head (30) having two thread interfaces which are connected to each other, one of the thread interfaces being suitable for being threadedly connected to the connecting end (21) of the delivery tube (20) and the other thread interface being suitable for being threadedly connected to the cream outlet (11) of the wet burn cream (10); the second adapter head (40) having a thread interface and a socket which are connected to each other, the thread interface of the second adapter head (40) being suitable for being threadedly connected to the connecting end (21) of the delivery tube (20), and the socket being suitable for the shape of the needle (51) of the pressurized air needle (50).

3. The nasal drug delivery device of claim 2, wherein: The two thread interfaces of the first adapter head (30) are coaxially arranged and have opposite screw directions.

4. The nasal drug delivery device of claim 1, wherein: The adapter component comprises a first adapter head (31) and a second adapter head (41) which are rotationally connected to each other, the first adapter head (31) having a thread interface and a socket which are independent of each other, the thread interface being suitable for being threadedly connected to the connecting end (21) of the delivery tube (20), and the socket being suitable for the shape of the needle (51) of the pressurized air needle (50), the second adapter head (41) having a thread interface which is suitable for being threadedly connected to the connecting end (21) of the delivery tube (20), and the thread interface of the second adapter head (41) being selectively connected to the thread interface of the first adapter head (31) or the socket of the first adapter head (31) when the second adapter head (41) is rotated relative to the first adapter head (31).

5. The nasal drug delivery device of claim 4, wherein: The first adapter head (31) and the second adapter head (41) are rotationally connected through a rotating shaft (60).

6. The nasal drug delivery device of claim 4, wherein: The thread interface of the first adapter head (31) and the thread interface of the second adapter head (41) have opposite screw directions.

7. The nasal drug delivery device of claim 4, wherein: When the delivery tube (20) is screwed along the thread interface of the second adapter head (41), the delivery tube (20) is tightly abutted against the first adapter head (31) or the cream outlet (11) of the wet burn cream (10).

8. The nasal device according to any one of claims 1 to 7, wherein: The delivery tube (20) comprises a straight delivery tube (20) and a bent delivery tube (20), the delivery end (22) of the bent delivery tube (20) being bent.

9. The nasal drug delivery device according to any one of claims 1 to 7, wherein: The delivery end (22) of the delivery tube (20) is provided with a brush head (70), the brush head (70) comprising a connecting sleeve (71) which is sleeved on the delivery end (22) of the delivery tube (20) and bristles (72) which are arranged outside the connecting sleeve (71), the connecting sleeve (71) being provided with a delivery hole (74) in the middle of the bristles (72).

10. The nasal drug delivery device of claim 9, wherein: The connecting sleeve (71) is made of rubber, a plurality of clamping holes (73) are arranged on the side wall of the connecting sleeve (71) in the circumferential direction, and a protruding portion (220) suitable for clamping into the clamping hole (73) is formed on the outer wall of the medicine outlet end (22) of the medicine delivery tube (20).

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