Nasal cavity drug delivery device

Abstract

The utility model discloses a nasal cavity dosing device, which belongs to the technical field of medical instruments and comprises a liquid storage cavity shell and a waste liquid collecting component, the bottom end of the liquid storage cavity shell is connected with the waste liquid collecting component, and the top end of the liquid storage cavity shell is provided with a connecting hole and is in threaded connection with a guide connecting piece through the connecting hole. A guide connecting hole is formed in the guide connecting piece, a pressure piece is arranged in the guide connecting hole, a clamping protrusion is arranged on the inner wall of the guide connecting hole, a fan-shaped clamping block is arranged on the pressure piece, a spring is arranged on the pressure piece in a sleeving mode, a communicating hole for containing a liquid guide pipe is further formed in the guide connecting piece, and the end, located in the liquid storage cavity, of the liquid guide pipe is connected with a non-return structure. The end, located outside the liquid storage cavity, of the liquid guide pipe is connected with the nozzle which is connected with the waste liquid collecting assembly. Due to the arrangement of the waste liquid collecting assembly, redundant liquid medicine flowing out of the spray head or waste liquid flowing out of the nasal cavity can be collected, and the situation that the bottle body is polluted due to the fact that the liquid medicine flows into the bottle body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical appliances, and particularly relates to a nasal administration device. Background Art

[0002] In today's medical field, the importance of nasal administration devices is becoming increasingly prominent. They not only provide a convenient and effective way of drug delivery, but in some cases are also superior to traditional oral or injection methods. Traditional methods are often affected by changes in the digestive tract, gastrointestinal enzyme metabolism, and the first-pass effect of the liver, reducing the utilization rate of drugs and affecting the curative effect. Nasal administration, as a non-invasive method, has more advantages. In addition, nasal administration devices are more convenient for daily use by patients. Compared with invasive administration methods such as injection, nasal administration does not require puncturing the skin or using a syringe, reducing the pain and discomfort of patients and improving the comfort of drug use for patients. This is particularly important for the treatment of long-term patients and the drug management of children and elderly patients, and helps to improve the quality of life of patients.

[0003] When the existing nasal administration devices are in use, the liquid medicine is likely to flow out from the nozzle, causing the liquid medicine to stain the medicine bottle and easily rub onto the user's body.

[0004] In the patent with the publication number CN202961493U, a nasal medicine applicator is disclosed, which includes a bottle body, a booster pump, and a rubber tube. A nozzle is provided at the front section of the rubber tube, a resilient arm is provided at the root of the nozzle, a pressing handle is provided at the end of the resilient arm, a rotating shaft is provided on the bottle body, and the pressing handle is connected to the rotating shaft.

[0005] The nasal medicine applicator disclosed in the above patent does not have a corresponding structure to prevent the liquid medicine from flowing onto the bottle body, which easily causes the liquid medicine to stain the body or clothes. Therefore, how to provide a nasal administration device is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0006] The main purpose of the utility model is to provide a nasal administration device to solve the above technical problems. The device is provided with a waste liquid collection component, which can collect the excess liquid medicine flowing out of the nozzle or the waste liquid flowing out of the nasal cavity, and avoid the liquid medicine flowing onto the bottle body and causing pollution to the bottle body.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A nasal administration device includes a liquid storage cavity housing and a waste liquid collection component. The bottom end of the liquid storage cavity housing is connected to the waste liquid collection component. A liquid storage cavity is provided inside the liquid storage cavity housing. A connection hole is provided at the top end of the liquid storage cavity housing, and a guiding connection component is threadedly connected through the connection hole. A guiding connection hole is provided on the guiding connection component, and a pressure component is provided inside the guiding connection hole. A clamping protrusion is provided on the inner wall of the guiding connection hole. A sector-shaped clamping block is provided on the pressure component. A spring is sleeved on the pressure component. One end of the spring abuts against the bottom end of the inner wall of the guiding connection hole, and the other end abuts against the sector-shaped clamping block of the pressure component. A communication hole for placing a liquid guiding tube is also provided on the guiding connection component. One end of the liquid guiding tube located inside the liquid storage cavity is connected to a check structure, and the end of the liquid guiding tube located outside the liquid storage cavity is connected to a nozzle. The nozzle is connected to the waste liquid collection component, and the waste liquid collection component is used for collecting waste liquid.

[0009] Further, the waste liquid collection component includes a liquid accumulation shell, a collection tube, and a collection cavity housing. The collection cavity housing is threadedly connected to the bottom end of the liquid storage cavity housing. A collection cavity is provided inside the collection cavity housing. A docking component is provided circumferentially on the collection cavity housing, and a through hole is provided at the docking component. The liquid accumulation shell is fixed to the nozzle through a plurality of vertical plates. The bottom end of the inner wall of the liquid accumulation shell is connected to a collection tube. A collection tube connecting component is sleeved on the end of the collection tube away from the liquid accumulation shell. A fixing component is fixedly provided on the collection tube near the collection tube connecting component. The collection tube connecting component can be threadedly connected to the docking component, and at the same time, the collection tube can extend into the collection cavity through the through hole on the docking component.

[0010] Further, the check structure includes a first fixed hemisphere, a blocking ball, and a second fixed hemisphere. The flat end of the first fixed hemisphere is connected to the flat end of the second fixed hemisphere. A liquid outlet hole is provided on the first fixed hemisphere, and a liquid guiding tube is connected to the outer wall of the first fixed hemisphere near the liquid outlet hole. A placement groove one for placing the blocking ball is provided at the bottom end of the liquid outlet hole. A blocking ball clamping block is also provided at the bottom end of the inner wall of the liquid outlet hole. A liquid inlet hole is provided on the second fixed hemisphere. The two ends of the liquid inlet hole are in a flared shape. The diameter of the thin hole of the liquid inlet hole is smaller than the diameter of the blocking ball. A placement groove two for placing the blocking ball is provided at the top end of the liquid inlet hole. When the first fixed hemisphere and the second fixed hemisphere are connected, the placement groove one and the placement groove two can be docked.

[0011] Further, vertical lines are provided at the top end of the pressure component.

[0012] Further, a plurality of water guiding grooves are provided circumferentially on the nozzle.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] The utility model is provided with a waste liquid collection assembly, which can collect the excess liquid medicine flowing out of the nozzle or the waste liquid flowing out of the nasal cavity, avoiding the liquid medicine flowing onto the bottle body and contaminating the bottle body; the check structure can prevent the backflow of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0016] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model.

[0017] Figure 2 It is a schematic partial cross-sectional structure diagram of the present utility model.

[0018] Figure 3 It is a schematic structure diagram of the nozzle.

[0019] Figure 4 It is a schematic structure diagram of the collection tube.

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the check structure.

[0021] Figure 6 It is a schematic top view structure diagram of the present utility model.

[0022] Figure 7 It is a schematic structure diagram of the pressure member.

[0023] Figure 8 It is a schematic side cross-sectional structure diagram of the collection cavity.

[0024] Figure 9 It is a schematic back structure diagram of the collection cavity.

[0025] Wherein, 1 - liquid storage cavity housing, 2 - collection cavity housing, 3 - pressure member, 4 - guiding connecting member, 5 - liquid accumulation housing, 6 - nozzle, 7 - collection tube, 8 - liquid guiding tube, 9 - check structure, 9.1 - fixed hemisphere one, 9.2 - blocking ball, 9.3 - fixed hemisphere two, 10 - spring, 11 - collection tube connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment

[0028] As Figures 1 to 9 As shown, the present invention provides a nasal drug delivery device, including a liquid storage cavity housing 1 and a waste liquid collection assembly. The bottom end of the liquid storage cavity housing 1 is connected to the waste liquid collection assembly. A liquid storage cavity is provided inside the liquid storage cavity housing 1. A connection hole is provided at the top end of the liquid storage cavity housing 1, and a guiding connector 4 is threadedly connected through the connection hole. A guiding connection hole is provided on the guiding connector 4. A pressure member 3 is provided in the guiding connection hole. A clamping protrusion is provided on the inner wall of the guiding connection hole. A sector-shaped clamping block is provided on the pressure member 3. A spring 10 is sleeved on the pressure member 3. One end of the spring 10 abuts against the bottom end of the inner wall of the guiding connection hole, and the other end abuts against the sector-shaped clamping block of the pressure member 3. A communication hole for placing a liquid guide tube 8 is also provided on the guiding connector 4. One end of the liquid guide tube 8 located inside the liquid storage cavity is connected to a check valve structure 9, and the end of the liquid guide tube 8 located outside the liquid storage cavity is connected to a nozzle 6. The nozzle 6 is connected to the waste liquid collection assembly, and the waste liquid collection assembly is used for collecting waste liquid; the nozzle 6 can realize the spraying of the liquid medicine; the spring 10 can make the pressure member 3 rebound, facilitating the next pressing to spray the liquid medicine; the clamping protrusion on the guiding connection hole and the sector-shaped clamping block on the pressure member 3 can realize the locking of the pressure member 3; the guiding connector 4 is used to realize the guiding and pressing of the pressure member 3; the liquid guide tube 8 can make the liquid medicine flow out when the pressure member 3 is pressed down.

[0029] In this embodiment, the waste liquid collection assembly includes a liquid accumulation shell 5, a collection tube 7, and a collection cavity housing 2. The collection cavity housing 2 is threadedly connected to the bottom end of the liquid storage cavity housing 1. A collection cavity is provided inside the collection cavity housing 2. A docking member is circumferentially provided on the collection cavity housing 2, and a through hole is provided at the docking member. The liquid accumulation shell 5 is fixed on the nozzle 6 through a plurality of vertical plates. The bottom end of the inner wall of the liquid accumulation shell 5 is connected to a collection tube 7. The end of the collection tube 7 away from the liquid accumulation shell 5 is sleeved with a collection tube connector 11. A fixing member is fixedly provided on the collection tube 7 near the collection tube connector 11. The collection tube connector 11 can be threadedly connected to the docking member, and at the same time, the collection tube 7 can extend into the collection cavity through the through hole on the docking member; the liquid accumulation shell 5 is used for collecting the liquid medicine or waste liquid flowing out of the nozzle 6; the collection tube 7 can guide the liquid medicine or waste liquid flowing out of the nozzle 6 to the collection cavity; the collection tube connector 11 can rotate on the collection tube 7 to realize the connection with the docking member.

[0030] In this embodiment, the check structure 9 includes a first fixed hemisphere 9.1, a ball stopper 9.2, and a second fixed hemisphere 9.3. The planar end of the first fixed hemisphere 9.1 is connected to the planar end of the second fixed hemisphere 9.3. A liquid outlet hole is provided on the first fixed hemisphere 9.1, and a liquid guide pipe 8 is connected to the outer wall of the first fixed hemisphere 9.1 near the liquid outlet hole. A first placement groove for placing the ball stopper 9.2 is provided at the bottom end of the liquid outlet hole, and a ball stopper clamping block is further provided at the bottom end of the inner wall of the liquid outlet hole. The ball stopper clamping block is used to prevent the ball stopper 9.2 from entering the liquid outlet hole. A liquid inlet hole is provided on the second fixed hemisphere 9.3. Both ends of the liquid inlet hole are in a flared shape, and the diameter of the narrow hole of the liquid inlet hole is smaller than the diameter of the ball stopper 9.2. A second placement groove for placing the ball stopper 9.2 is provided at the top end of the liquid inlet hole. When the first fixed hemisphere 9.1 is connected to the second fixed hemisphere 9.3, the first placement groove and the second placement groove can be docked; multiple holes are provided at the flared hole at the bottom end of the liquid inlet hole so that the liquid inlet hole communicates with the liquid storage cavity. The diameter of the liquid outlet hole is greater than or equal to the diameter of the ball stopper 9.2 and less than twice the diameter of the ball stopper 9.2. Specifically, in this embodiment, the diameter of the liquid outlet hole is slightly larger than the diameter of the ball stopper. The ball stopper 9.2 is used to prevent the backflow of the liquid medicine.

[0031] In this embodiment, vertical lines are provided at the top end of the pressure member 3. The vertical lines are used to increase the friction of the pressure member 3, making it easier for the pressure member 3 to rotate.

[0032] In this embodiment, a plurality of liquid guide grooves are circumferentially provided on the nozzle 6. The liquid guide grooves are used to guide the liquid medicine flowing out of the nozzle 6.

[0033] Working principle: Connect the collection tube connector 11 to the docking member so that the collection tube 7 extends into the collection cavity. Rotate the pressure member 3 so that the sector-shaped clamping block on the pressure member 3 is misaligned with the convexity. Press the pressure member 3 so that the liquid in the liquid storage cavity pushes open the ball stopper 9.2 through the liquid inlet hole and enters the check structure, and then passes through the liquid outlet hole and enters the liquid guide pipe 8. At the same time, under the action of the nozzle 6, it is sprayed into the nasal cavity. The excess liquid medicine flowing out of the nozzle 6 flows into the liquid accumulation shell 5 under the action of the liquid guide grooves, and under the action of the collection tube 7, the excess liquid medicine or waste liquid enters the collection cavity. If the liquid medicine in the diversion tube 8 wants to flow back, it will cause the ball stopper 9.2 to block the liquid inlet hole, preventing the backflow of the liquid medicine.

[0034] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A nasal drug delivery device, characterized in that: The invention comprises a liquid storage chamber shell (1) and a waste liquid collection component, wherein the bottom end of the liquid storage chamber shell (1) is connected to the waste liquid collection component, a liquid storage chamber is arranged inside the liquid storage chamber shell (1), a connection hole is arranged at the top end of the liquid storage chamber shell (1), and a guide connecting member (4) is threadedly connected to the connection hole, a guide connecting member (4) is arranged on the guide connecting member (4), a pressure member (3) is arranged in the guide connecting hole, a clamping protrusion is arranged on the inner wall of the guide connecting hole, a fan-shaped clamping block is arranged on the pressure member (3), and the guide connecting hole is provided with a pressure member (3). A spring (10) is sleeved on the pressure member (3), one end of the spring (10) abuts against the bottom end of the inner wall of the guide connection hole, and the other end abuts against the fan-shaped block of the pressure member (3). The guide connection member (4) is also provided with a connecting hole for placing a liquid guide tube (8). One end of the liquid guide tube (8) located in the liquid storage cavity is connected to the non-return structure (9), and one end of the liquid guide tube (8) located outside the liquid storage cavity is connected to the nozzle (6). The nozzle (6) is connected to a waste liquid collection component, and the waste liquid collection component is used to collect waste liquid.

2. A nasal drug delivery device according to claim 1, characterized in that: The waste liquid collection assembly comprises a liquid accumulation shell (5), a collecting tube (7) and a collecting chamber shell (2); the collecting chamber shell (2) is threadedly connected to the bottom end of the liquid storage chamber shell (1); a collecting chamber is arranged inside the collecting chamber shell (2); a docking piece is circumferentially arranged on the collecting chamber shell (2); a through hole is arranged on the docking piece; the liquid accumulation shell (5) is fixed to the nozzle (6) through a plurality of vertical plates; a collecting tube (7) is connected to the bottom end of the inner wall of the liquid accumulation shell (5); a collecting tube connector (11) is sleeved on one end of the collecting tube (7) away from the liquid accumulation shell (5); a fixing piece is fixedly arranged on the collecting tube (7) near the collecting tube connector (11); the collecting tube connector (11) can be threadedly connected to the docking piece; and the collecting tube (7) can extend into the collecting chamber through the through hole on the docking piece.

3. A nasal drug delivery device according to claim 1, characterized in that: The non-return structure (9) comprises a fixed hemisphere 1 (9.1), a blocking ball (9.2) and a fixed hemisphere 2 (9.3). The plane end of the fixed hemisphere 1 (9.1) is connected to the plane end of the fixed hemisphere 2 (9.3). The fixed hemisphere 1 (9.1) is provided with a liquid outlet, and the outer wall of the fixed hemisphere 1 (9.1) is connected with a liquid guide tube (8) near the liquid outlet. The bottom end of the liquid outlet is provided with a placement groove 1 for placing the blocking ball (9.2). The bottom end of the inner wall of the liquid outlet is also provided with a blocking ball clamp. The fixed hemisphere 2 (9.3) is provided with a liquid inlet. The two ends of the liquid inlet are trumpet-shaped. The diameter of the fine hole of the liquid inlet is smaller than the diameter of the blocking ball (9.2). The top of the liquid inlet is provided with a placement groove 2 for placing the blocking ball (9.2). When the fixed hemisphere 1 (9.1) is connected to the fixed hemisphere 2 (9.3), the placement groove 1 and the placement groove 2 can be docked.

4. A nasal drug delivery device according to claim 1, characterized in that: The top of the pressure piece (3) is provided with vertical lines.

5. A nasal drug delivery device according to claim 1, characterized in that: The nozzle (6) is provided with a plurality of water guide grooves in the circumferential direction.

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