Nasal cavity applicator

Abstract

The utility model discloses a nasal cavity dosing device relates to medical instrument technical field, it includes medicine delivery subassembly, three -way joint, medicine outlet pipe and spray head, medicine delivery subassembly is equipped with medicine outlet nozzle, is used for the output medicine, one port of three -way joint is connected with medicine outlet nozzle, medicine outlet pipe includes two, is connected with another two ports of three -way joint respectively, spray head includes two, is connected with two medicine outlet pipes respectively, and spray head is connected on the one end of medicine outlet pipe far from three -way joint. Medicine delivery subassembly includes medicine cartridge and piston rod, and medicine outlet nozzle is located at one end of medicine cartridge, and piston rod is located at the other end of medicine cartridge, and piston rod can slide in medicine cartridge. Because setting up three -way joint to connect two medicine outlet pipes, and connecting spray head at medicine outlet pipe end, thereby being convenient for to both sides nare simultaneous dosing irrigation treatment.

Description

Technical Field

[0001] This utility model belongs to the field of medical device technology, specifically relating to a nasal delivery device. Background Technology

[0002] Nasal irrigation is a safe and effective local treatment method suitable for various nasal and upper respiratory tract diseases. It uses a nebulizer to spray medication directly onto the lesion site, featuring high local concentration, strong targeting, rapid efficacy, and reduced drug dosage. Most existing nebulizers include a delivery component and a nozzle. The delivery component acts on the liquid medication, allowing the liquid to be sprayed out quickly and evenly from the nozzle, thus rinsing the nasal cavity. However, due to the large number of patients in hospitals, nasal irrigation requires rinsing both nostrils sequentially, which is time-consuming.

[0003] For example, patent document CN213251147U discloses a nasal irrigation applicator, including a syringe. The syringe port is connected to an infusion tube, and the other end of the infusion tube is connected to a three-way valve. A valve one is installed on one side of the three-way valve, and an inlet tube is connected to the valve one. The other end of the inlet tube is connected to a medicine bottle. A valve two is installed on the other side of the three-way valve, and an outlet tube is fixedly connected to the valve two. The other end of the outlet tube is fitted with a nasal prosthesis, and the other end of the nasal prosthesis is fixedly connected to an irrigation nozzle. By pushing the syringe plunger, the medicine bottle can be drawn into the syringe, and then the medicine is administered to the nasal cavity for irrigation through the nozzle. However, since there is only one irrigation nozzle, the nozzle must first be inserted into one nostril for irrigation, and then inserted into the other nostril for irrigation, which is not conducive to rapid drug administration and irrigation treatment. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a nasal administration device that facilitates simultaneous administration and irrigation treatment of both nostrils.

[0005] To solve the above problems, the present invention adopts the following technical solution:

[0006] A nasal delivery device includes a drug delivery assembly, a three-way connector, a drug dispensing tube, and a nozzle; the drug delivery assembly is provided with a drug dispensing nozzle for dispensing medication; one port of the three-way connector is connected to the drug dispensing nozzle; the drug dispensing tube includes two tubes, which are respectively connected to the other two ports of the three-way connector; the nozzle includes two nozzles, which are respectively connected to the two drug dispensing tubes, and the nozzles are connected to the ends of the drug dispensing tubes away from the three-way connector.

[0007] Furthermore, the drug delivery assembly includes a cartridge and a piston rod, with a drug outlet located at one end of the cartridge and the piston rod located at the other end of the cartridge, and the piston rod being slidable within the cartridge.

[0008] Furthermore, a medicine inlet is provided on the side of the medicine cartridge, which is close to the end of the medicine outlet. A one-way valve is provided on the medicine inlet, which is used to connect to the medicine bottle.

[0009] Furthermore, the one-way valve includes a valve body, a bottom cover, a spring, and a valve ball. The valve body has openings at both the top and bottom ends. The spring and valve ball are located inside the valve body. The bottom cover is connected to the lower opening of the valve body. The two ends of the spring are connected to the valve ball and the bottom cover, respectively. The valve ball seals the upper opening of the valve body. A through hole communicating with the inside of the valve body is opened in the middle of the bottom cover. When the spring is compressed, the valve ball moves downward. There is a gap between the valve body and the valve ball for liquid to pass through.

[0010] Furthermore, the front end of the drug delivery assembly is provided with a rotating frame, the drug outlet tube is set on the rotating frame, one end of the rotating frame is hinged to the drug outlet tube, the end of the rotating frame is provided with a hinge hole, the side of the drug delivery assembly is provided with a screw hole, the hinge hole coincides with the screw hole, and a fastening screw passing through the hinge hole is connected to the screw hole.

[0011] Furthermore, the rotating frame is provided with two parallel channels through which the medicine outlet tube passes. A speed regulating hole is provided at the upper middle part of the channel, which is opened along the length of the channel and is connected to the channel. A speed regulating wheel is provided inside the speed regulating hole, and horizontal side grooves are provided on the two side walls of the speed regulating hole. Rollers are provided on both sides of the speed regulating wheel, and the rollers are rotatably located in the side grooves. The bottom surface of the channel is an inclined surface, and the medicine outlet tube is squeezed between the speed regulating wheel and the bottom surface of the channel.

[0012] Furthermore, the nozzle is fixed on the rotating frame and located at the end away from the drug delivery assembly, and the nozzle and the drug delivery pipe are connected.

[0013] Furthermore, the nozzle is L-shaped, and one end of the nozzle is tapered.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a three-way connector to connect two drug delivery tubes, and then connecting two nozzles through the drug delivery tubes, the drug pushed out by the drug delivery component can act on both nasal cavities of the patient at the same time, which is conducive to quickly rinsing the patient.

[0016] 2. By setting a drug delivery port on the drug delivery assembly to draw up the drug solution, the nasal cavity can be continuously irrigated, thereby improving the efficiency of irrigation. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0018] Figure 2 This is an exploded view of an embodiment of the present invention.

[0019] Figure 3 yes Figure 2 A cross-sectional view of a one-way valve.

[0020] Figure 4 yes Figure 2 Exploded view of a one-way valve.

[0021] Figure 5 yes Figure 1 Cross-sectional view of the speed regulating hole.

[0022] The following are the labels in the diagram: 1. Cartridge; 2. Piston rod; 3. Check valve; 31. Valve housing; 32. Valve ball; 33. Spring; 34. Bottom cover; 4. Nozzle; 5. T-connector; 6. Discharge tube; 7. Rotating frame; 71. Hinge hole; 8. Channel; 9. Nozzle; 10. Speed ​​control hole; 11. Speed ​​control wheel; 12. Dosing port; 13. Screw hole; 14. Fastening screw; 15. Roller; 16. Side groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] like Figures 1-5 As shown, the nasal delivery device of this embodiment includes a drug delivery assembly for dispensing medication. The drug delivery assembly has a dispensing nozzle 4. The assembly includes a cartridge 1 and a piston rod 2. The dispensing nozzle 4 is located at one end of the cartridge 1, and the piston rod 2 is located at the other end of the cartridge 1. The piston rod 2 is slidable within the cartridge 1, so that by pushing the piston rod 2, the medication is expelled from the dispensing nozzle 4. A three-way connector 5 is connected to the dispensing nozzle 4. One port of the three-way connector 5 is connected to the dispensing nozzle 4, and its other port is connected to two dispensing tubes 6. The nasal delivery device also includes two spray nozzles 9 for aerosol medication delivery. Two spray nozzles 9 are provided, each connected to one of the two dispensing tubes 6. The spray nozzle 9 is connected to the end of the dispensing tube 6 away from the three-way connector 5. The spray nozzle 9 is L-shaped, and one end of the spray nozzle 9 is tapered to facilitate insertion of the spray nozzle 9 into the patient's nostril for medication irrigation.

[0025] To facilitate the injection of rinsing solution into the cartridge 1, a filling port 12 is provided on the side of the cartridge 1. The filling port 12 is close to the end of the dispensing nozzle 4. A one-way valve 3 is provided on the filling port 12. The one-way valve 3 is used to connect to the medicine bottle. By setting the one-way valve 3, the medicine in the medicine bottle can enter the cartridge 1 under negative pressure. When the piston rod 2 is pushed, the medicine cannot flow back from the one-way valve 3, but flows out from the dispensing nozzle 4.

[0026] Specifically, the one-way valve 3 includes a valve housing 31, a bottom cover 34, a spring 33, and a valve ball 32. The valve housing 31 has openings at both the top and bottom. The spring 33 and the valve ball 32 are located inside the valve housing 31. The bottom cover 34 is connected to the lower opening of the valve housing 31. The two ends of the spring 33 are connected to the valve ball 32 and the bottom cover 34, respectively. The valve ball 32 seals the upper opening of the valve housing 31. A through hole communicating with the inside of the valve housing 31 is opened in the middle of the bottom cover 34. When the spring 33 is compressed, the valve ball 32 moves downward, and there is a gap between the valve housing 31 and the valve ball 32 for liquid to pass through. For easy connection, the upper end of the valve housing 31 may be provided with threads for docking and fixing with a medicine bottle.

[0027] In this embodiment, the direction of the nozzle 9 is adjustable to adapt to the orientation of the patient's nostrils. The front end of the drug delivery assembly is provided with a rotating frame 7, which is connected to the front end of the cartridge 1. The dispensing tube 6 is provided on the rotating frame 7. One end of the rotating frame 7 is hinged to the dispensing tube 6. The end of the rotating frame 7 is provided with a hinge hole 71. The side of the drug delivery assembly is provided with a screw hole 13. The hinge hole 71 coincides with the screw hole 13. A fastening screw 14 passing through the hinge hole 71 is connected to the screw hole 13. The fastening screw 14 has a smooth section that connects to the hinge hole 71. When the fastening screw 14 is not fully tightened, the rotating frame 7 can rotate relative to the drug delivery assembly. After the fastening screw 14 is tightened, the rotating frame 7 and the drug delivery assembly are fixed relative to each other. The nozzle 9 is fixed on the rotating frame 7 and located at the end away from the drug delivery assembly. The nozzle 9 is connected to the drug delivery tube 6. By adjusting the rotating frame 7, the angle between the nozzle 9 and the drug cartridge 1 can be adjusted, which facilitates the injection of the drug liquid and also facilitates the nozzle 9 to spray the drug into the nasal cavity.

[0028] In addition, the rotating frame 7 is provided with two parallel channels 8, through which the dispensing tube 6 passes. A speed regulating hole 10 is provided at the upper middle part of the channel 8. The speed regulating hole 10 is opened along the length of the channel 8 and is connected to the channel 8. A speed regulating wheel 11 is provided inside the speed regulating hole 10. Horizontal side grooves 16 are provided on the two side walls of the speed regulating hole 10. Rollers 15 are provided on both sides of the speed regulating wheel 11. The rollers 15 are rotatably located in the side grooves 16. The bottom surface of the channel 8 is an inclined surface. The dispensing tube 6 is squeezed between the speed regulating wheel 11 and the bottom surface of the channel 8. By rolling the speed regulating wheel 11, the degree of deformation of the dispensing tube 6 is changed. In this way, the speed of the liquid spray can be adjusted according to the different tolerances of the patient's two nasal cavities to stimulation, making nasal irrigation more comfortable.

[0029] In nasal drug administration, the speed regulating wheel 11 is rolled to close the dispensing tube 6. Then, the bottle of rinsing solution is connected to the one-way valve 3. The piston rod 2 is then pulled back to create a negative pressure inside the cartridge 1. This causes the solution in the bottle to press down on the valve bead 32 and spring 33, allowing the solution to enter the cartridge 1. The speed regulating wheel 11 is then rolled to adjust the speed of the solution spray. Next, the angle of the rotating frame 7 is adjusted as needed, and the nozzle 9 is inserted into the patient's nostril. The piston rod 2 is pushed to expel the solution, which flows from the dispensing nozzle 4 through the three-way connector 5 into the dispensing tube 6. Finally, the solution is sprayed from the nozzle 9 to rinse the patient's nasal cavity. The rinsing process allows for simultaneous administration of medication to both nostrils, which helps improve rinsing efficiency.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nasal delivery device, characterized in that, include: The drug delivery assembly is provided with a dispensing nozzle (4) for dispensing drugs. The drug delivery assembly includes a cartridge (1) and a piston rod (2). The dispensing nozzle (4) is located at one end of the cartridge (1), and the piston rod (2) is located at the other end of the cartridge (1). The piston rod (2) can slide inside the cartridge (1). A drug filling port (12) is provided on the side of the cartridge (1). The drug filling port (12) is close to one end of the dispensing nozzle (4). A one-way valve (3) is provided on the drug filling port (12). The one-way valve (3) is used to connect to a medicine bottle. A three-way connector (5) is connected to one port of the dispensing nozzle (4); The medicine outlet tube (6) includes two tubes, which are respectively connected to the other two ports of the three-way connector (5); The nozzle (9) includes two nozzles, which are respectively connected to the two medicine outlet pipes (6). The nozzle (9) is connected to the end of the medicine outlet pipe (6) away from the three-way connector (5). The front end of the drug delivery assembly is provided with a rotating frame (7), and the drug outlet tube (6) is provided on the rotating frame (7). One end of the rotating frame (7) is hinged to the drug outlet tube (6). The end of the rotating frame (7) is provided with a hinge hole (71). The side of the drug delivery assembly is provided with a screw hole (13). The hinge hole (71) coincides with the screw hole (13). A fastening screw (14) passing through the hinge hole (71) is connected to the screw hole (13). Two parallel channels (8) are provided on the rotating frame (7). The medicine outlet tube (6) passes through the channel (8). A speed regulating hole (10) is provided at the upper middle part of the channel (8). The speed regulating hole (10) is opened along the length direction of the channel (8). The speed regulating hole (10) and the channel (8) are connected. A speed regulating wheel (11) is provided in the speed regulating hole (10). Horizontal side grooves (16) are provided on the two side walls of the speed regulating hole (10). Rollers (15) are provided on both sides of the speed regulating wheel (11). The rollers (15) are rotatably provided in the side grooves (16). The bottom surface of the channel (8) is an inclined surface. The medicine outlet tube (6) is squeezed between the speed regulating wheel (11) and the bottom surface of the channel (8).

2. The nasal delivery device according to claim 1, characterized in that, The one-way valve (3) includes a valve body (31), a bottom cover (34), a spring (33), and a valve ball (32). The valve body (31) has openings at both the top and bottom ends. The spring (33) and the valve ball (32) are located inside the valve body (31). The bottom cover (34) is connected to the lower opening of the valve body (31). The two ends of the spring (33) are connected to the valve ball (32) and the bottom cover (34) respectively. The valve ball (32) blocks the upper opening of the valve body (31). A through hole communicating with the inside of the valve body (31) is opened in the middle of the bottom cover (34). When the spring (33) is compressed, the valve ball (32) moves downward. There is a gap between the valve body (31) and the valve ball (32) for liquid to pass through.

3. The nasal delivery device according to claim 1, characterized in that, The nozzle (9) is fixed on the rotating frame (7) and located at one end away from the drug delivery assembly. The nozzle (9) and the drug delivery pipe (6) are connected.

4. The nasal delivery device according to claim 1, characterized in that, The nozzle (9) is L-shaped, and one end of the nozzle (9) is tapered.

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