Nasal spray device

Abstract

The utility model discloses a nasal spray device which comprises a shell, a supply unit and a force storage mechanism, the supply unit is used for storing and outputting second fluid, and in an initial state, the supply unit is locked at a first position in the shell; and the force storage mechanism is connected with the supply unit, and the force storage mechanism is manually operated in advance to apply loading force to the supply unit, so that after unlocking, the supply unit can be ejected to a second position in the shell and outputs second fluid. According to the nasal spray device, loading force is applied in advance through the force storage mechanism, and triggering force can be provided at the unlocking moment, so that the pump assembly is promoted to rapidly pump out medicine, and then the medicine is delivered to a farther position.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a nasal sprayer. Background Art

[0002] As the environment deteriorates, the number of nasal diseases is on the rise. Nasal drug delivery devices are widely used in nasal treatment because they can deliver drugs directly to the nose. Medically proven, daily nasal cleaning can effectively relieve various rhinitis symptoms such as nasal congestion and runny nose, and can reduce the invasion of bacteria and allergens into the nasal cavity, thereby improving one's own respiratory immunity.

[0003] At present, many nasal drug delivery devices used in the market mainly realize the function of drug delivery through a pump assembly. For example, in the Chinese patent with the announcement number CN 215841157 U, the triggering of the fluid brake (equivalent to the pump assembly) depends on the cooperation between the flange driving part and the flange driven part, so that the first fluid (such as medicine) can be pumped out of the fluid reservoir and delivered to the outside.

[0004] In actual use, it is found that the pumping effect of the fluid brake of the above device is greatly affected by the actuator. If the user presses the actuator at a low speed or with a low force, the flange follower moves upward more slowly, which greatly reduces the pumping effect of the fluid brake and affects drug delivery.

[0005] Based on the above problems, the present application improves the structure of the trigger fluid brake and proposes a new type of nasal sprayer. Utility Model Content

[0006] The utility model aims to provide a nasal sprayer, which improves the pumping effect of the pump assembly by improving the trigger structure of the pump assembly, so that the medicine can be delivered to a farther position.

[0007] The purpose of the utility model is achieved by the following technical solutions:

[0008] A nasal spray, comprising:

[0009] shell;

[0010] A supply unit, the supply unit is used to store and output a second fluid, and in an initial state, the supply unit is locked at a first position in the housing;

[0011] A force storage mechanism is connected to the supply unit, and the force storage mechanism is manually operated in advance to apply a loading force to the supply unit, so that after the lock is released, the supply unit can be ejected to the second position in the housing and output the second fluid.

[0012] In some embodiments, the supply unit comprises a nozzle, a pump assembly and a fluid container, wherein the fluid container is connected to the nozzle via the pump assembly;

[0013] When the fluid container is ejected from the first position to the second position, the pump assembly is triggered by the loading force to discharge the second fluid in the fluid container outwardly through the nozzle.

[0014] In some embodiments, the power storage mechanism includes:

[0015] A first tube, wherein the first tube is sleeved on the bottom of the supply unit;

[0016] A second tube, wherein the second tube is sleeved on the bottom of the first tube;

[0017] an elastic member, the elastic member being arranged between the first tube and the second tube;

[0018] The second tube can be operated to move toward the first tube to compress the elastic member to obtain a loading force.

[0019] In some embodiments, a stopper is provided at the middle of the first tube, and a limiting groove is provided on the inner wall of the second tube, and the stopper is slidably engaged with the limiting groove.

[0020] In some embodiments, a guide groove is disposed on the inner wall of the shell, and a slider is disposed on the outer side of the second tube, and the slider is slidably engaged with the guide groove.

[0021] In some embodiments, a valve unit is further included. In an initial state, the valve unit is engaged with the force storage mechanism to lock the supply unit at a first position in the housing.

[0022] In some embodiments, the valve unit is rotatably connected to the housing, and a locking protrusion is provided on the valve unit;

[0023] The force storage mechanism comprises a locking tongue. In an initial state, the locking tongue is engaged with the locking protrusion under the action of the loading force.

[0024] In some embodiments, an actuating unit is further included, wherein the actuating unit is connected to the force storage mechanism, and the actuating unit is manually operated to drive the force storage mechanism to apply a loading force to the supply unit.

[0025] In some embodiments, the actuating unit is rotatably disposed on one side of the housing, and a deflection angle of the actuating unit is 30-60°.

[0026] In some embodiments, a nozzle is further included, wherein the nozzle is disposed on the housing, and the supply unit partially extends into the nozzle.

[0027] Compared with the prior art, the beneficial effects of the present invention include at least that the device applies loading force in advance through the force storage mechanism, which can provide a trigger force at the moment of unlocking to prompt the pump assembly to quickly pump out the drug and then deliver it to a farther location. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of a dual-power-driven nasal sprayer.

[0029] Figure 2 It is a schematic diagram of the exploded structure of a dual-power-driven nasal sprayer.

[0030] Figure 3 It is a schematic diagram of the structure of the dual-power-driven nasal sprayer when it is in the first position and the valve unit is locked.

[0031] Figure 4 It is a structural schematic diagram of a dual-power-driven nasal sprayer in a first position and when the valve unit is at a sealing critical point.

[0032] Figure 5 It is a schematic diagram of the structure of the dual-power-driven nasal sprayer when it is in the second position and the valve unit is unlocked.

[0033] Figure 6 It is a structural schematic diagram of a single-power-driven nasal sprayer in a first position with the valve unit locked.

[0034] Figure 7 It is a schematic diagram of the structure of a single-power-driven nasal sprayer in the second position with the valve unit unlocked.

[0035] Figure 8 It is a schematic diagram of the connection structure between the actuating unit and the loading structure.

[0036] Fig. 9 It is a schematic diagram of the coordination between the valve unit, the force storage mechanism and the air storage chamber.

[0037] In the figure:

[0038] 1. Shell; 11. First half shell; 12. Second half shell; 13. Mounting cavity; 14. Sealing groove; 15. Guide groove;

[0039] 2. pipe opening; 21. ring channel;

[0040] 3. Supply unit; 31. Nozzle; 32. Pump assembly; 33. Fluid container;

[0041] 4. Power storage mechanism; 41. First cylinder; 411. Lock tongue; 4111. First locking surface; 4112. First guide surface; 412. Stopper; 42. Second cylinder; 421. Limiting groove; 422. Sliding block; 423. Follower block; 43. Elastic member;

[0042] 5. Actuating unit; 51. Pressing portion; 52. Connecting portion; 521. Guide groove; 5211. Driving section; 5212. Anti-slip section;

[0043] 6. valve unit; 61. first rotating part; 62. second rotating part; 63. third rotating part; 64. latching protrusion; 641. second locking surface; 642. second guide surface;

[0044] 7. Mouthpiece;

[0045] 8. air storage chamber; 81. inlet; 82. outlet; 83. first arc surface; 84. second arc surface; 85. third arc surface; 86. air hole;

[0046] 9. Seals. DETAILED DESCRIPTION

[0047] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0048] The words expressing positions and directions described in the present utility model are all explained by taking the drawings as examples, but they can be changed as needed, and all the changes are included in the protection scope of the present utility model.

[0049] See also Figures 1 to 9 As shown, the utility model discloses a nasal spray, which is mainly used in the treatment of nasal diseases. By delivering drugs to the deep respiratory tract, the absorption efficiency of the drugs is improved, and the degradation of the drugs in the digestive system is reduced, so as to exert the therapeutic effect more quickly.

[0050] The nasal spray of the present application may be a single-power nasal spray, that is, it is operated by only one power source, such as a manual switch, to spray the medicine. Figure 6 and Figure 7 As shown, the nasal spray mainly includes a housing 1, a nozzle 2, a supply unit 3, a power storage mechanism 4 and an actuating unit 5.

[0051] The housing 1 is constructed as a single-hand grip, which contains a supply unit 3, a power storage mechanism 4 and a part of an actuation unit 5. In this embodiment, the housing 1 is generally an elongated box body, and a mounting cavity 13 is provided inside the housing 1, and the supply unit 3 and the power storage mechanism 4 can be disposed in the mounting cavity 13 for protection.

[0052] The nozzle 2 is arranged on the housing 1, so that the nozzle 2 is sealed and connected to the housing 1. When in use, the nozzle 2 is arranged on the nose of the user, and the second fluid can be delivered to the nasal airway of the user in cooperation with the supply unit 3.

[0053] The supply unit 3 is used to store a second fluid. The second fluid may be a powdery substance, a granular substance or a liquid substance. The second fluid has a specific therapeutic effect.

[0054] The supply unit 3 can deliver the second fluid outward under the drive of an external force (such as a loading force), for example, in the form of a spray or a jet. In this embodiment, the supply unit 3 can move between a first position and a second position, wherein the first position is defined as an invalid working position. Figure 6 As shown, in this position, the supply unit 3 cannot be triggered to output the second fluid; the second position is defined as the effective working position, such as Figure 7 As shown, in this position, the supply unit 3 can be triggered to output the second fluid.

[0055] The force storage mechanism 4 is connected to the supply unit 3 and is used to apply a loading force to the supply unit 3. In this embodiment, the force storage mechanism 4 can be manually operated in advance, for example, by squeezing the actuation unit 5 to apply a loading force to the supply unit 3, so that the supply unit 3 can be driven to move from the first position to the second position after the valve unit 6 is unlocked.

[0056] The actuating unit 5 is linked with the force storage mechanism 4, and the user can drive the force storage mechanism 4 to provide loading force by operating the actuating unit 5. In this embodiment, the actuating unit 5 is rotatably arranged on one side of the housing 1 and connected to the force storage mechanism 4. This design facilitates the user to apply the actuating force by gripping and pressing, which improves the convenience of operation compared to the conventional up and down pressing to apply the actuating force.

[0057] Still see Figure 6 As shown, in the nasal sprayer (single-power nasal sprayer), in the initial state, the supply unit 3 is locked in the first position. In some embodiments, the supply unit 3 can be directly restricted in the first position by a locking member (such as a pin, a hook, etc., not shown), or can be indirectly restricted in the first position by the locking member cooperating with the power storage mechanism 4.

[0058] Exemplarily, the locking member in this embodiment is a valve unit 6, which is arranged on one side of the supply unit 3 and can be engaged with the force storage mechanism 4 to indirectly lock the supply unit 3 in the first position. Without being unlocked, the supply unit 3 always remains in the first position, that is, the invalid working position. Therefore, regardless of whether the actuating unit 5 is operated, the supply unit 3 does not have the possibility of triggering the spray, thereby realizing the function of preventing misoperation and improving the reliability of the device.

[0059] like Figure 7 As shown, when in use, the user operates the actuating unit 5 to drive the force storage mechanism 4 to apply a loading force to the supply unit 3. After the lock is released (the toggle valve unit 6 is separated from the force storage mechanism 4), the supply unit 3 moves to the second position and delivers the second fluid through the nozzle 2.

[0060] It is worth noting that in this device, since the supply unit 3 is always subjected to a loading force by the force storage mechanism 4, at the moment when the valve unit 6 is unlocked, the supply unit 3 will quickly move to the second position in a catapult-like motion. Compared with the conventional method of driving the supply unit 3, the trigger force acting on the supply unit 3 is greater and faster. Accordingly, the supply unit 3 will also move quickly and deliver the second fluid to a farther position by squeezing the pump assembly 32, thereby effectively improving the delivery stroke.

[0061] In addition, the nasal spray of the present application can also be a dual-power nasal spray, that is, while the single-power operation allows the drug to be sprayed, the additional first fluid is output through the mouthpiece 7 to provide additional power. Figures 1 to 5 As shown, the nasal spray mainly includes a housing 1, a nozzle 2, a mouthpiece 7, a supply unit 3, a power storage mechanism 4, an actuating unit 5 and a valve unit 6.

[0062] Among them, the housing 1, the nozzle 2, the supply unit 3, the loading unit and the actuating unit 5 can be arranged with reference to the single-power nasal sprayer, which will not be repeated here.

[0063] The mouthpiece 7 is arranged on the housing 1 and is sealed to the housing 1. When in use, the mouthpiece 7 is arranged at the user's mouth, so that the user outputs the first fluid through the mouthpiece 7, and the first fluid is the mouth-blown gas from the user's mouth, thereby providing power to assist the delivery of the second fluid.

[0064] The valve unit 6 is arranged in the flow passage connecting the mouthpiece 7 and the pipe mouth 2 ( Figure 5 The arrow in the middle shows the complete flow channel), and is preferably arranged at one end of the flow channel close to the mouthpiece 7. The valve unit 6 has two main functions: on the one hand, it locks the supply unit 3 in the first position to achieve the function of preventing misoperation; on the other hand, it cooperates with the second fluid to provide constant power assistance to optimize the drug administration operation.

[0065] See also Figure 2 and Figure 3 As shown, in the initial state of the nasal sprayer (dual-power nasal sprayer), the valve unit 6 cuts off the flow path and locks the supply unit 3 in the first position. It should be noted that the valve unit 6 here also indirectly locks the supply unit 3 in the first position by snap-fitting through the force storage mechanism 4, so that it cannot be triggered to spray, thereby preventing waste and pollution caused by misoperation.

[0066] And due to the cut-off effect of the valve unit 6 itself, most of the flow channels in the shell 1 are in a closed state, and external gas cannot enter the interior of the shell 1, so it has a good dust-proof effect, can effectively prevent flow channel pollution, and improve the cleanliness and sanitary quality of the device.

[0067] When the pressure of the first fluid reaches the preset pressure, the pressure of the first fluid will drive the valve unit 6 to unlock, so that the supply unit 3 moves to the second position under the driving force of the loading force and outputs the second fluid, and at the same time, the flow channel is connected so that the first fluid can provide constant power assistance to the second fluid. This makes the device spray more powerful and stronger, making it easier to deliver and settle the drug in the nasal vestibule, and when the user outputs the first fluid, the soft palate connecting the oral cavity and the nasal cavity is closed, which will avoid adverse reactions or drug degradation caused by some drugs entering the esophagus through the nasal cavity.

[0068] Figures 3 to 5 The flow process of the valve unit 6 is shown, and the flow channel part is introduced first. In the present embodiment, the flow channel includes an air storage chamber 8, which is a fan-shaped structure and is provided with an inlet 81 and an outlet 82. Among them, the mouthpiece 7 is sealed and connected to the inlet 81, and the valve unit 6 is rotatably arranged between the inlet 81 and the outlet 82. The valve unit 6 is configured as an air-driven control member, which can selectively control the opening and closing state of the outlet 82 according to the pressure of the first fluid. In short, the valve unit 6 has two deflection strokes: in the first deflection stroke, the outlet 82 is closed, and the first fluid enters the air storage chamber 8 from the inlet 81 and continues to accumulate; in the second deflection stroke, the outlet 82 is opened, and the first fluid flows rapidly from the air storage chamber 8 to the nozzle 2.

[0069] As an example, a first arc surface 83 is provided on one side of the inlet 81, and a second arc surface 84 and a third arc surface 85 are provided on both sides of the outlet 82. The first arc surface 83 is arranged concentrically with the second arc surface 84, and the arc length of the first arc surface 83 is greater than the arc length of the second arc surface 84. The valve unit 6 is rotatably arranged at the arc center of the air storage chamber 8, and the valve unit 6 includes a first rotating part 61, a second rotating part 62 and a third rotating part 63. The first rotating part 61 is always in sealing cooperation with the first arc surface 83, and the third rotating part 63 is always in sealing cooperation with the third arc surface 85, so as to ensure the sealing of the valve unit 6 during the operation. However, in the first deflection stroke, the valve unit 6 is affected by the first fluid continuously input, and the second rotating part 62 and the second arc surface 84 will turn from the sealing cooperation to the sealing critical point, and in the second deflection stroke, the second rotating part 62 and the second arc surface 84 will turn from the sealing critical point to form a gap. At this time, the first fluid reaching the preset pressure will quickly flow from the notch to the nozzle 2, providing constant power assistance, while the valve unit 6 is unlocked and separated from the power storage mechanism 4, and the supply unit 3 quickly moves to the second position and outputs the second fluid, which is mixed with the first fluid and delivered to the user's nose through the nozzle 2. The cooperation between the valve unit 6 and the power storage mechanism 4 will be described later.

[0070] It should be emphasized that in this device, since the force driving the valve unit 6 to separate from the power storage mechanism 4 is constant, that is, only when the pressure of the first fluid reaches the constant force, that is, the preset pressure, the valve unit 6 will unlock the supply unit 3 from the first position and open the flow channel, so that the blowing force of the first fluid flowing to the nozzle 2 is always constant and controllable, and the power assistance formed by the blowing force is very stable, and there is no fluctuation. Compared with conventional dual-power nasal sprayers, the design of regulating the blowing force of the first fluid by the valve unit 6 in this application makes the depth of drug delivery to the nose close to the same each time, which is conducive to precise treatment.

[0071] Furthermore, the air storage chamber 8 is also provided with an air hole 86, so that during the resetting process of the valve unit 6 (the valve unit 6 is provided with a resetting torsion spring at the rotating position), air is taken in through the air hole 86 to balance the internal and external air pressures of the air storage chamber 8, thereby ensuring the smoothness of the resetting of the valve unit 6.

[0072] See also Figure 2 As shown, in some embodiments, the housing 1 includes a first half shell 11 and a second half shell 12 that are arranged opposite to each other. The first half shell 11 and the second half shell 12 can be arranged opposite to each other up and down or left and right, and the two can be detachably connected and fixed, so that the user can replace the supply unit 3 under the guidance of medical staff, thereby reducing the cost of use. Of course, in some other embodiments, the housing 1 after the first half shell 11 and the second half shell 12 are combined can also be non-detachable, so that the device becomes a disposable device.

[0073] See also Figures 3 to 7As shown, in some embodiments, the supply unit 3 includes a nozzle 31, a pump assembly 32 and a fluid container 33. The fluid container 33 may be a bottle structure, which is used to store the second fluid. The pump assembly 32 may be a mechanical infusion pump or a powder delivery pump. When the fluid container 33 is ejected from the first position to the second position, the pump assembly 32 is triggered by the loading force to deliver a prescribed dose of the second fluid from the fluid container 33 to the nozzle 31. The nozzle 31 is disposed in the nozzle 2, protected by the nozzle 2, and is used to convert the second fluid into a spray or jet, thereby increasing the contact area between the drug and the nose and improving the treatment effect.

[0074] Furthermore, an annular channel 21 is formed between the nozzle 31 and the pipe mouth 2, and the annular diameter of at least part of the annular channel 21 gradually decreases along the delivery direction of the second fluid, so that the first fluid is squeezed when passing through the annular channel 21 and the flow rate is accelerated in the area with a smaller annular diameter, thereby enhancing the power assist effect of the first fluid.

[0075] See also Figures 3 to 7 As shown, in some embodiments, the power storage mechanism 4 includes a first cylinder 41 , the first cylinder 41 is sleeved on the bottom of the supply unit 3 , and the supply unit 3 is locked in the first position by the first cylinder 41 .

[0076] See Figure 3 and Fig. 9 As shown, a locking tongue 411 is provided at the top of the first tube 41. The locking tongue 411 is generally in an inclined triangular structure, including a first locking surface 4111 and a first guide surface 4112. Correspondingly, a locking protrusion 64 is provided on the valve unit 6 to cooperate with the locking tongue 411. The locking protrusion 64 has a second locking surface 641 inclined downward, and a second guide surface 642 is provided on the outer side of the locking protrusion 64 above the second locking surface 641.

[0077] In the initial state, the locking tongue 411 is locked into the locking protrusion 64 by the loading force, the first locking surface 4111 and the second locking surface 641 are locked with each other, the position of the first tube 41 is restricted, and the supply unit 3 is locked in the first position. Figure 4 As shown, as the first fluid drives the valve unit 6 to rotate to the second deflection stroke, the second locking surface 641 gradually separates from the first locking surface 4111. Under the action of the pre-applied loading force, the first tube 41 moves upward to drive the supply unit 3 to move from the first position to the second position to output the second fluid, which is the action of drug spraying. When the user cancels the loading force, for example, after releasing the grip on the actuating unit 5, the supply unit 3 can be reset to the first position. During this process, the first guide surface 4112 moves along the second guide surface 642, so that the locking tongue 411 is re-engaged in the locking protrusion 64 and restored to the initial state.

[0078] In addition, the power storage mechanism 4 further includes a second tube 42 and an elastic member 43 .

[0079] The second tube 42 is sleeved on the bottom of the first tube 41, and the two are slidably matched. Note that there should be a certain gap between the second tube 42 and the first tube 41 to prevent the first tube 41 from moving away from the second tube 42 to generate negative pressure adsorption and weaken the loading force.

[0080] The elastic member 43 is disposed between the first tube 41 and the second tube 42. For example, the elastic member 43 may be a spring, and a spring seat is provided below the first tube 41 and at the inner bottom of the second tube 42. Both ends of the spring are clamped on the two spring seats. The second tube 42 can be operated to move toward the first tube 41 to compress the elastic member 43 to obtain a loading force. For example, the second tube 42 can be driven to move toward the first tube 41 by operating the actuating unit 5. See the following description for details.

[0081] Furthermore, a stopper 412 is provided in the middle of the first barrel 41. As an example, there are two stoppers 412, which are symmetrically distributed on both sides of the first barrel 41 to improve the stability of the movement of the first barrel 41. Correspondingly, a limiting groove 421 is provided on the inner wall of the second barrel 42, and the length direction of the limiting groove 421 is parallel to the longitudinal axis direction of the device. By slidingly matching the stopper 412 with the limiting groove 421, the first barrel 41 is prevented from being separated from the second barrel 42 or the locking tongue 411 on the first barrel 41 is prevented from hitting and causing the structure of the power storage mechanism 4 to be damaged.

[0082] Furthermore, a seal 9 is provided between the inner wall of the housing 1 and the second tube 42 to keep the inner wall of the housing 1 and the power storage mechanism 4 sealed, thereby preventing leakage of the first fluid and ensuring that the strength of the power assistance is not affected. Exemplarily, the seal 9 can be a sealing ring, and the inner wall of the housing 1 is provided with a sealing groove 14, the sealing ring is installed in the sealing groove 14, and is always sealed with the outer periphery of the second tube 42.

[0083] Furthermore, the inner wall of the housing 1 is provided with a guide groove 15, the length direction of which is parallel to the longitudinal axis of the device. Correspondingly, a slider 422 is also provided on the outer side of the second tube 42, and the slider 422 is slidably arranged in the guide groove 15, thereby improving the stability of the movement of the second tube 42 through the guiding effect.

[0084] In some embodiments, the deflection angle of the actuating unit 5 is 30°-60°, and preferably 30°-40°, so as to facilitate the user's gripping operation.

[0085] See also Figure 2 and Figure 8 As shown, in some embodiments, the actuating unit 5 includes a pressing portion 51 and a connecting portion 52 .

[0086] Among them, the pressing part 51 is roughly a trapezoidal structure, one end of the pressing part 51, such as the upper end, is rotatably connected to the inside of the shell 1 (a reset torsion spring is provided at the rotation point of the pressing part 51), and the pressing part 51 at least partially protrudes from the outer contour of the shell 1.

[0087] The connecting portion 52 extends from the pressing portion 51 into the housing 1. As an example, there are two connecting portions 52, which are symmetrically distributed on both sides of the pressing direction of the pressing portion 51 to improve the balance of the actuating force, and the connecting portion 52 can be integrally formed with the pressing portion 51. A guide groove 521 is provided on the connecting portion 52, and correspondingly, a follower block 423 cooperating with the guide groove 521 is provided on the outer side of the second cylinder 42 of the power storage mechanism 4. When the user squeezes the pressing portion 51, the connecting portion 52 drives the follower block 423 to move through the guide groove 521, so that the second cylinder 42 moves along the longitudinal axis of the device, and the loading force is formed by squeezing the elastic member 43.

[0088] Furthermore, the guide slot 521 includes an inclined driving section 5211 and an anti-slip section 5212 connecting the two ends of the driving section 5211. During the actuation process, as the guide slot 521 moves toward the inside of the housing 1, the driving section 5211 can drive the driven block 423 to move upward, thereby driving the second cylinder 42 to move toward the first cylinder 41. After the actuation force is withdrawn, during the resetting process of the pressing portion 51, the anti-slip section 5212 can prevent the driving section 5211 from being separated from the driven block 423, thereby avoiding affecting the next actuation operation.

[0089] See also Figures 1 to 5 As shown, in some embodiments, the angle between the nozzle 2 and the mouthpiece 7 is 30°-70°, and the preferred angle is 35°-45° to facilitate user operation.

[0090] In certain embodiments, an antibacterial layer (not shown) is provided on the inner wall of the mouthpiece 7 and / or the mouth of pipe 2 to prevent or reduce microbial growth, and ensure health and safety in use. Exemplary, the antibacterial layer can be a healthy non-toxic coating such as a titanium dioxide layer, an antibacterial polymer layer, and an antibacterial nano coating. Preferably, the antibacterial layer is a nano silver layer in the present application, and the silver ions released by the nano silver layer have a certain killing effect on bacteria, fungi and viruses, and can prevent the growth and spread of microorganisms inside the mouthpiece 7 and / or the mouth of pipe 2. In addition, the nano silver layer has good electrical conductivity, and when the mouthpiece 7 and / or the mouth of pipe 2 contact the human body, the static electricity generated during the use of the device can be guided to the earth by the human body, realizing the function of removing static electricity, and avoiding electrostatic adsorption from affecting the delivery stroke of drug delivery.

[0091] See also Figures 1 to 5 As shown, the utility model also discloses a method for delivering fluid to the nasal airway of a user, which method is applicable to the above-mentioned dual-power nasal sprayer and includes steps S1 to S5.

[0092] S1. Provide a nasal sprayer, which includes a nozzle 2, a mouthpiece 7, a supply unit 3, a loading unit, an actuation unit 5 and a valve unit 6.

[0093] S2. Apply a loading force to the supply unit 3 of the nasal sprayer and lock it in the first position. Specifically, the user can squeeze the actuation unit 5 to make the power storage mechanism 4 apply a loading force to the supply unit 3, and the valve unit 6 cooperates with the power storage mechanism 4 to lock the supply unit 3 in the first position.

[0094] S3. The nozzle 2 and mouthpiece 7 of the nasal spray are respectively arranged on the nose and mouth of the user. Specifically, the nozzle 2 can be inserted into the nose of the user to a depth of not less than 2 cm to improve the sealing between the nozzle 2 and the nose of the user and ensure the delivery depth of the drug. The mouthpiece 7 is held by the mouth of the user, and it is noted that the patency of the mouthpiece 7 is not damaged.

[0095] S4, the user outputs the first fluid through the mouthpiece 7, and the supply unit 3 is unlocked from the first position by the pressure of the first fluid. Specifically, as the first fluid is continuously output, the valve unit 6 is driven to deflect, and the protrusion 64 on the valve unit 6 gradually separates from the locking tongue 411 on the power storage mechanism 4, until the protrusion 64 is completely separated from the locking tongue 411, at which time the supply unit 3 is unlocked from the first position.

[0096] S5, the supply unit 3 moves to the second position, and delivers the second fluid to the nasal airway through the nozzle 2, and at the same time, the first fluid flows to the nozzle 2 and provides constant power assistance to the second fluid. Specifically, since the actuating unit 5 is always in a gripped state, the loading force applied by the power storage mechanism 4 always acts on the supply unit 3. At the moment of unlocking, the loading force is released to drive the supply unit 3 to move to the second position to output the second fluid, and at the same time, the valve unit 6 also conducts the flow channel, causing the first fluid to flow to the nozzle 2 to provide constant power assistance for the delivery of the second fluid.

[0097] It should be noted that the above method adopts a mode of pressing first and then blowing, that is, the user first squeezes the actuator to make the power storage mechanism 4 apply a loading force to the supply unit 3 locked in the first position, and then blows in gas to make the valve unit 6 synchronously complete the functions of unlocking the position and conducting the fluid. This design makes the blowing force of the first fluid always constant and controllable. Compared with the conventional dual-power nasal spray mode of blowing first and then pressing / blowing and pressing synchronously, the method of the present application accumulates air in the air storage chamber, and the air pressure can only be output for power assistance after reaching the preset pressure, and the air blowing is used to unlock the restriction to output the drug synchronously. This method is compatible with all people, simple to operate, and the blowing force of the first fluid is controllable. The depth of drug delivery to the nose is nearly consistent each time, which is more conducive to precise treatment.

[0098] In addition, before unlocking by blowing force, no matter whether the actuating unit 5 is operated or not, the supply unit 3 has no possibility of triggering the injection, thus realizing the function of preventing misoperation; during this period, the valve unit 6 cuts off the flow channel and also plays a dust-proof role, thereby improving the cleanliness and hygienic quality inside the device.

[0099] After being unlocked by the blowing force, the loading force can instantly trigger the supply unit 3, so that the pump assembly 32 delivers the second fluid to a farther position, thereby effectively increasing the drug delivery depth.

[0100] In some embodiments, the end of the nozzle 2 close to the user's nose is tapered. The nozzle 2 with a tapered structure can adapt to the noses of different users and keep it centered after being inserted into the nose, reducing the collision between the second fluid and the nasal airway and improving the delivery effect.

[0101] In some embodiments, during step S4 to step S5, the user's soft palate is in a closed state, which can prevent adverse reactions or drug degradation caused by some drugs entering the esophagus through the nasal cavity, thereby improving the treatment effect.

[0102] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the utility model. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the utility model.

Claims

1. A nasal spray, characterized in that: include: Housing (1); A supply unit (3), the supply unit (3) being used for storing and outputting a second fluid, and in an initial state, the supply unit (3) being locked at a first position in the housing (1); A force storage mechanism (4) is connected to the supply unit (3), and the force storage mechanism (4) is manually operated in advance to apply a loading force to the supply unit (3), so that after the lock is released, the supply unit (3) can be ejected to a second position in the housing (1) and output a second fluid.

2. The nasal spray according to claim 1, characterized in that The supply unit (3) comprises a nozzle (31), a pump assembly (32) and a fluid container (33), wherein the fluid container (33) is connected to the nozzle (31) via the pump assembly (32); When the fluid container (33) is ejected from the first position to the second position, the pump assembly (32) is triggered by the loading force to discharge the second fluid in the fluid container (33) outward through the nozzle (31).

3. The nasal spray according to claim 1, characterized in that The power storage mechanism (4) comprises: A first tube (41), wherein the first tube (41) is sleeved on the bottom of the supply unit (3); A second tube (42), wherein the second tube (42) is sleeved on the bottom of the first tube (41); an elastic member (43), wherein the elastic member (43) is arranged between the first tube (41) and the second tube (42); The second tube (42) can be operated to move toward the first tube (41) to compress the elastic member (43) to obtain a loading force.

4. The nasal spray according to claim 3, characterized in that A stopper (412) is provided in the middle of the first tube (41), and a limiting groove (421) is provided on the inner wall of the second tube (42), and the stopper (412) is slidably matched with the limiting groove (421).

5. The nasal spray according to claim 3, characterized in that The inner wall of the housing (1) is provided with a guide groove (15), and the outer side of the second tube (42) is provided with a slider (422), and the slider (422) is slidably matched with the guide groove (15).

6. The nasal spray according to claim 1, characterized in that It also comprises a valve unit (6). In an initial state, the valve unit (6) is engaged with the force storage mechanism (4) so ​​that the supply unit (3) is locked in a first position in the housing (1).

7. The nasal spray according to claim 6, characterized in that The valve unit (6) is rotatably connected to the housing (1), and a locking protrusion (64) is provided on the valve unit (6); The force storage mechanism (4) comprises a locking tongue (411). In an initial state, the locking tongue (411) is engaged with the locking protrusion (64) by the loading force.

8. The nasal spray according to claim 1, characterized in that It also comprises an actuating unit (5), which is connected to the force storage mechanism (4), and is manually operated to drive the force storage mechanism (4) to apply a loading force to the supply unit (3).

9. The nasal spray according to claim 8, characterized in that The actuating unit (5) is rotatably arranged on one side of the housing (1), and the deflection angle of the actuating unit (5) is 30-60°.

10. The nasal spray according to claim 1, characterized in that It also comprises a nozzle (2), wherein the nozzle (2) is arranged on the housing (1), and the supply unit (3) partially extends into the nozzle (2).

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