Dual-dose nasal spray device

Abstract

The present invention patent discloses a double-dose nasal spray device, including a nasal spray mechanism, a delivery mechanism and a medium reservoir. The nasal spray mechanism has a medium channel. The delivery mechanism is slidably assembled to the nasal spray mechanism. The medium reservoir is assembled to the delivery mechanism. The delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is sprayed into the nasal cavity through the medium channel twice. The delivery mechanism is provided with a first locking portion and a second locking portion along its sliding direction. The nasal spray mechanism is provided with a first receiving portion and a second receiving portion that are locked together. When the first locking portion and the first receiving portion are locked together, the first discharge stroke is completed, so that part of the medium in the medium reservoir is sprayed through the medium channel. When the second locking portion and the second receiving portion are locked together, the second discharge stroke is completed, so that the remaining medium in the medium reservoir is sprayed through the medium channel. This patent greatly improves the user experience of patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a double-dose nasal spray device. Background Art

[0002] Sinusitis is a nonspecific inflammation of the sinus mucosa and a common rhinitis disease, generally classified as acute or chronic. Many people suffer from sinusitis. Because drugs can be rapidly absorbed systemically through the high blood flow rate of the sinus mucosa, the most effective and convenient way to treat sinusitis is to deliver drugs to the nasal cavity via a nasal spray device, allowing for systemic delivery through the nasal passages for rapid treatment.

[0003] Nasal spray devices are easy to operate and highly practical, making them popular with a wide range of patients. However, traditional nasal spray devices are primarily single-stroke, and each nasal spray device can only be used once. If a patient's condition is serious and they are away from home, they need to carry a large number of nasal spray devices, which is extremely inconvenient. Of course, existing nasal spray devices also include two-stroke and even multi-stroke types. Although these largely solve the problem of portability for patients, their internal limiting structures are less stable, making it easy for patients to misoperate them when not in use, leading to leakage of the medication inside. This not only wastes the medication, but can also render the nasal spray device useless and unusable. This can affect timely treatment for patients, especially when their condition is serious, and poses a safety hazard.

[0004] Based on the above-mentioned defects, the inventors have devoted themselves to developing a dual-dose nasal spray device after years of research, which can greatly improve the stability of its internal limiting structure and reduce the probability of accidental touch. Summary of the Invention

[0005] The purpose of the present invention is to provide a dual-dose nasal spray device. During the process of the delivery mechanism performing two discharge strokes on the medium reservoir, the two locking parts respectively cooperate with the two receiving parts to limit the delivery mechanism, so as to stably lock the delivery mechanism at a preset position during the sliding process along the nasal spray mechanism. After locking, the two will not be easily separated by external forces, thereby greatly reducing the chance of accidental touch and improving the patient's user experience.

[0006] The technical solutions provided by the present invention are as follows:

[0007] A dual-dose nasal spray device, comprising:

[0008] The nasal spray mechanism has a medium channel;

[0009] a delivery mechanism, slidably assembled to the nasal spray mechanism;

[0010] The medium storage device is assembled on the conveying mechanism; wherein,

[0011] The delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is sprayed into the nasal cavity through the medium channel in two times;

[0012] The conveying mechanism is provided with a first locking portion and a second locking portion along its sliding direction;

[0013] The nasal spray mechanism is provided with a first receiving portion and a second receiving portion which are locked and matched with each other;

[0014] When the first locking portion and the first receiving portion are locked and matched, a first discharge stroke is completed, so that part of the medium in the medium reservoir is ejected through the medium channel;

[0015] When the second locking portion and the second receiving portion are locked and matched, the second discharge stroke is completed, so that the remaining medium in the medium reservoir is ejected through the medium channel.

[0016] In this patent, the medium reservoir holds twice the amount of medium in a conventional single-dose reservoir. Under the delivery mechanism, the medium can be sprayed into the nasal cavity in two separate passes through the medium channel of the nasal spray mechanism, significantly improving portability. By manually pressing the delivery mechanism in a specific direction, the medium reservoir can be discharged twice. After the first discharge stroke is completed, the first locking portion and the first receiving portion engage, locking the delivery mechanism to the nasal spray mechanism, preventing further sliding and easily separating due to external forces. This ensures that the remaining medium does not leak and maintains a sealed state. The delivery mechanism is then pressed in the same direction for the second discharge, until the second locking portion and the second receiving portion engage, completely discharging the remaining medium in the medium reservoir through the medium channel. In this patent, two locking portions, each engaged with the two receiving portions, stably lock the delivery mechanism to a predetermined position along the nasal spray mechanism during its sliding motion, significantly reducing the possibility of accidental contact and improving the patient's user experience.

[0017] Further preferably, the nasal spray mechanism includes a fixing seat;

[0018] The conveying mechanism includes a pressing member, a bottle holder and a spring;

[0019] The bottle holder is assembled on the pressing member and is used to fix the medium storage;

[0020] The pressing member is slidably connected to the fixing seat to push the bottle holder, the medium reservoir and the medium channel to communicate with each other; the spring is used to abut against the fixing seat and the pressing member to provide a force for the pressing member to return;

[0021] Wherein, the first locking portion and the second locking portion are both provided on the bottle holder, and the first receiving portion and the second receiving portion are both provided on the fixing seat.

[0022] Further preferably, the fixing seat includes a first sliding portion and a second sliding portion;

[0023] The second sliding portion is provided at an end of the first sliding portion facing away from the pressing member and is located inside the first sliding portion; and

[0024] The bottle holder includes a mounting portion and a docking portion;

[0025] The mounting portion is used to assemble the medium storage, and the docking portion is used to dock with the pressing member;

[0026] The mounting portion is slidably connected to the second sliding portion, and the docking portion is slidably connected to the first sliding portion.

[0027] Further preferably, the first locking portion is a first annular groove formed on the outer wall of the mounting portion, and the second locking portion is a step formed at the docking position between the mounting portion and the docking portion; and

[0028] The first receiving portion is an annular protrusion provided on the inner wall of the second sliding portion and adapted to the first annular groove; the second receiving portion is a free end of the second sliding portion facing the pressing member;

[0029] When the first annular groove and the annular protrusion are in contact with each other, a first discharge stroke is completed, causing part of the medium in the medium reservoir to be ejected through the medium channel; when the step and the free end are in contact with each other, a second discharge stroke is completed, causing the remaining medium in the medium reservoir to be ejected through the medium channel.

[0030] Further preferably, the annular protrusion and the free end are arranged adjacent to each other; and / or

[0031] The first sliding portion and the second sliding portion of the fixing seat are both hollow cylindrical structures; the mounting portion of the bottle holder is adapted to the contours of the second sliding portion, and the docking portion is adapted to the contours of the first sliding portion.

[0032] Further preferably, the nasal spray mechanism further comprises a nasal spray body and a puncture assembly;

[0033] The nasal spray body includes a nozzle portion and a fitting portion that are interconnected;

[0034] The puncture assembly is assembled in the nozzle portion, and the puncture assembly is provided with the medium channel;

[0035] The fixing seat is assembled in the matching portion, and the second sliding portion and the medium channel are arranged opposite to each other, so that the medium reservoir and the puncture assembly are connected and matched with each other.

[0036] Further preferably, the puncture assembly includes a needle seat and a needle tube inserted into the needle seat;

[0037] The needle tube is hollow inside to form the medium channel; and

[0038] The medium storage device includes a bottle body and a rubber stopper;

[0039] The bottle body stores a medium, and the rubber plug is used to seal the medium;

[0040] In the process of the pressing member pushing the bottle holder and the medium reservoir toward the nozzle portion, the needle tube pierces the rubber plug, and the needle seat abuts against the rubber plug, so that the medium is ejected through the medium channel.

[0041] Further preferably, the pressing member includes an operating portion, a supporting portion and a pushing portion fixed to the operating portion;

[0042] The support portion is hollow inside, and the push portion is arranged inside the support portion;

[0043] One end of the spring is sleeved between the support portion and the push portion, and the other end abuts against the end of the first sliding portion facing away from the operating portion; and the docking portion of the bottle holder is movably assembled on the push portion;

[0044] Wherein, the supporting portion is slidably connected to the matching portion, and the outer wall of the supporting portion is adapted to the inner wall of the matching portion; and the pushing portion is slidably connected to the first sliding portion.

[0045] Further preferably, the docking portion of the bottle holder is provided with a first buckle position and a second buckle position;

[0046] The first buckle position is located on a side of the second buckle position facing the mounting portion; and

[0047] The push portion is provided with an elastic push block that matches the first buckle position and the second buckle position;

[0048] When the first discharge stroke is executed, the elastic stop is engaged with the first buckle position, and the pressing member pushes the medium reservoir to move. When the first annular groove and the annular protrusion are in contact with each other, the first discharge stroke is completed, and part of the medium in the medium reservoir is ejected through the medium channel.

[0049] When executing the second discharge stroke, the elastic block is buckled in the second buckle position, and the pressing member pushes the medium reservoir to move. When the step and the free end are in contact with each other, the second discharge stroke is completed, and the remaining medium in the medium reservoir is ejected through the medium channel.

[0050] Further preferably, the number of the first buckle positions is two, and they are symmetrically arranged along the docking portion;

[0051] The number of the second buckle positions is two, and they are symmetrically arranged along the docking portion;

[0052] The two first buckle positions and the two second buckle positions are arranged in a one-to-one correspondence; and

[0053] The number of the elastic blocks is also two, and they are symmetrically arranged along the docking portion;

[0054] Wherein, the elastic block includes an elastic arm connected to the operating part and a buckle provided at the free end of the elastic arm; the buckle is provided with a guiding slope that cooperates with the first buckle position and the second buckle position.

[0055] The technical effects of the present invention are:

[0056] 1. In this patent, two locking parts are used to limit the two receiving parts respectively, so that the conveying mechanism can be stably locked to a preset position along the sliding process of the nasal spray mechanism, and the probability of being accidentally touched is greatly reduced, thereby improving the patient's experience. Specifically, by pressing the conveying mechanism in a specific direction with the hand, it can be used to perform two discharge strokes on the medium reservoir. When the first discharge stroke is completed, the first locking part and the second locking part are locked and matched, so that the conveying mechanism can be locked to the nasal spray mechanism, and will not continue to slide, and will not be easily separated by external force. In this way, it can be ensured that the remaining medium will not leak and can be in a sealed state for the next use. Then continue to press the conveying mechanism in this direction to discharge the medium for the second time, until the second locking part and the second receiving part are locked and matched, and the remaining medium in the medium reservoir is all sprayed out through the medium channel.

[0057] 2. In this patent, the amount of medium stored in the medium reservoir is equivalent to twice the amount of medium in an ordinary single-dose reservoir. Under the transportation of the delivery mechanism, the medium can be sprayed into the nasal cavity through the medium channel of the nasal spray mechanism in two times, which greatly improves the portability of the nasal spray device for patients.

[0058] 3. In this patent, the first locking portion and the second locking portion are both arranged on the bottle holder, and the first receiving portion and the second receiving portion are both arranged on the fixing seat. By operating the pressing piece, the structures of the bottle holder and the fixing seat are cleverly matched to achieve a stable limiting effect.

[0059] 4. In this patent, by providing a first buckle position and a second buckle position on the docking portion of the bottle holder, and providing an elastic block on the push portion, and by setting the first buckle position to be located on the side of the second buckle position facing the mounting portion, when the elastic block is respectively docked with the first buckle position and the second buckle position, the docking position between the push portion of the pressing member and the docking portion of the bottle holder can be changed, thereby realizing two discharge strokes for the medium reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0061] Figure 1 is a cross-sectional view of the product of the present invention when it is in an unused state;

[0062] Figure 2 This is a cross-sectional view of the product of the present invention after the medium is ejected for the first time;

[0063] Figure 3 This is a cross-sectional view of the pressing member returning to its initial state after the product of the present invention ejects the medium for the first time;

[0064] Figure 4 This is a cross-sectional view of the product of the present invention after the medium is ejected for the second time;

[0065] Figure 5 This is a cross-sectional view of the pressing member returning to its initial state after the product of the present invention ejects the medium for the second time;

[0066] Figure 6 is a cross-sectional view of the puncture assembly of the product of the present invention;

[0067] Figure 7 This is a cross-sectional view of the nasal spray body of the nasal spray mechanism of the product of the present invention;

[0068] Figure 8 This is a cross-sectional view of the assembly of the nasal spray body and the fixing base of the nasal spray mechanism of the product of the present invention;

[0069] Figure 9 This is a cross-sectional view of the assembly of the nasal spray body, the fixing seat and the spring of the product of the present invention;

[0070] Figure 10 is a cross-sectional view of a medium storage device of the product of the present invention;

[0071] Figure 11 It is a cross-sectional view of the assembled medium storage device and bottle holder of the product of the present invention;

[0072] Figure 12 is a cross-sectional view of the pressing member of the product of the present invention;

[0073] Figure 13 This is a cross-sectional view of the assembled medium storage, bottle holder and pressing piece of the product of the present invention.

[0074] Description of Figure Numbers:

[0075] 100, nasal spray mechanism; 110, fixed base; 111, first sliding portion; 112, second sliding portion; 1121, annular protrusion; 1122, free end; 113, fixed end surface; 120, nasal spray body; 121, nozzle portion; 1211, nozzle opening; 122, mating portion; 130, puncture assembly; 131, needle base; 132, needle tube; 1321, medium channel; 200, delivery mechanism; 210, pressing member; 211 , operating part; 212, supporting part; 213, pushing part; 2131, elastic block; 2132, elastic arm; 2133, buckle; 220, bottle holder; 221, mounting part; 2211, first annular groove; 2212, second annular groove; 222, docking part; 2221, first buckle position; 2222, second buckle position; 223, step; 230, spring; 300, medium storage; 310, bottle body; 320, rubber plug. DETAILED DESCRIPTION

[0076] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0077] According to a specific embodiment provided by the present invention, Figures 1 to 5 As shown, a dual-dose nasal spray device includes a nasal spray mechanism 100, a delivery mechanism 200, and a medium reservoir 300. The nasal spray mechanism 100 has a medium channel 1321. The delivery mechanism 200 is slidably assembled to the nasal spray mechanism 100. The medium reservoir 300 is assembled to the delivery mechanism 200. The delivery mechanism 200 is configured to perform two discharge strokes on the medium reservoir 300, so that the medium in the medium reservoir 300 is sprayed into the nasal cavity through the medium channel 1321 twice. The delivery mechanism 200 is provided with a first locking portion and a second locking portion along its sliding direction. The nasal spray mechanism 100 is provided with a first receiving portion and a second receiving portion that are locked together. When the first locking portion and the first receiving portion are locked together, the first discharge stroke is completed, so that part of the medium in the medium reservoir 300 is sprayed through the medium channel 1321. When the second locking portion and the second receiving portion are locked and matched, the second discharge stroke is completed, so that the remaining medium in the medium reservoir 300 is ejected through the medium channel 1321 .

[0078] In this patent, the amount of medium stored in the medium reservoir 300 is equivalent to twice the amount of medium in a conventional single-dose reservoir. Under the delivery mechanism 200, the medium can be sprayed into the nasal cavity in two batches through the medium channel 1321 of the nasal spray mechanism 100, greatly improving the patient's portability. By manually pressing the delivery mechanism 200 in a specific direction, the medium reservoir 300 can be discharged twice. After the first discharge stroke is completed, the first locking portion and the first receiving portion lock and engage, locking the delivery mechanism 200 to the nasal spray mechanism 100, preventing further sliding and easily separating due to external forces. This ensures that the remaining medium does not leak and remains sealed for the next use. The delivery mechanism 200 is then pressed in the same direction to discharge the medium a second time, until the second locking portion and the second receiving portion lock and engage, and all the remaining medium in the medium reservoir 300 is sprayed through the medium channel 1321. In this patent, two locking parts are used to limit the two docking parts 222 respectively, so that the delivery mechanism 200 can be stably locked at a preset position along the sliding process of the nasal spray mechanism 100, and the probability of being accidentally touched is greatly reduced, thereby improving the patient's user experience.

[0079] It is worth mentioning that the medium provided by this patent can be a liquid medicine for treating rhinitis, or other liquid for use by patients. Of course, the medium can also be in powder form, and there is no limitation here.

[0080] In this embodiment, see Figure 1 The nasal spray mechanism 100 may include a fixing base 110, a nasal spray body 120 and a puncture assembly 130. Figure 7 The nasal spray body 120 may include a nozzle portion 121 and a mating portion 122 that interpenetrate each other. Both the nozzle portion 121 and the mating portion 122 may be hollow, coaxially arranged tubular structures. A nozzle opening 1211 is provided at the end of the nozzle portion 121 facing away from the mating portion 122. The medium in the medium reservoir 300 can be sprayed into the nasal cavity through the medium channel 1321 via the nozzle opening 1211. Preferably, the nozzle opening 1211 atomizes the medium so that the medium can fully fill the nasal cavity, thereby ensuring that the drug can be rapidly delivered through the nasal cavity for systemic treatment, thereby achieving the purpose of rapid treatment. However, this is not limited to this embodiment.

[0081] Furthermore, the puncture assembly 130 is assembled in the nozzle portion 121, and the puncture assembly 130 is provided with a medium channel 1321, and the puncture assembly 130 is used to dock and connect with the medium reservoir 300 so that the medium flows into the medium channel 1321. In a preferred example, see Figure 6The puncture assembly 130 may include a needle seat 131 and a needle tube 132. The needle seat 131 is assembled in the nozzle portion 121 and is adapted to the internal contour of the nozzle portion 121. The needle tube 132 is assembled in the needle seat 131 and is adapted to the internal contour of the needle seat 131. The interior of the needle tube 132 is hollow, forming a medium channel 1321, and one end of the needle tube 132 is connected to the nozzle opening 1211, and the other end extends to the outside of the needle seat 131 for connecting with the medium reservoir 300. Correspondingly, see Figure 10 The medium reservoir 300 may include a bottle body 310 and a rubber plug 320. The bottle body 310 stores the medium. The rubber plug 320 is slidably assembled in the bottle body 310 to seal and squeeze the medium. The bottle body 310 is assembled on the conveying mechanism 200. The conveying mechanism 200 drives the bottle body 310 toward the puncture assembly 130. The opening of the bottle body 310 is capable of ensuring that at least the end of the needle seat 131 facing away from the nozzle opening 1211 extends into the interior thereof, allowing the needle tube 132 to pierce the rubber plug 320 and contact the medium. The end of the needle seat 131 pushes against the rubber plug 320, squeezing the medium into the medium channel 1321. Preferably, in order to facilitate the needle tube 132 to easily puncture the plug 320, two blind holes can be opened in the central areas of the upper and lower end surfaces of the plug 320, respectively, and a puncture portion is formed between the two blind holes. Since the puncture portion is thin, it is easy for the needle tube 132 to puncture, and the two blind holes can play a guiding role, which is beneficial to the sliding of the needle tube 132 and will not cause the needle tube 132 to deviate from the center position of the plug 320 during the sliding process.

[0082] Further, see Figure 8 The fixed seat 110 is assembled in the matching portion 122, and the conveying mechanism 200 is slidably assembled in the matching portion 122. The structures of the conveying mechanism 200 and the fixed seat 110 can achieve ingenious limiting cooperation, thereby achieving a stable limiting effect.

[0083] Specifically, in this embodiment, see Figure 1 and Figures 11 to 13 The conveying mechanism 200 may include a pressing member 210, a bottle holder 220, and a spring 230. The bottle holder 220 is assembled on the pressing member 210 and is used to fix the bottle body 310 of the medium reservoir 300. The pressing member 210 is slidably connected to the fixing seat 110 to push the bottle holder 220 and the medium reservoir 300 toward the nozzle portion 121. During the movement, the needle tube 132 pierces the rubber plug 320, connecting the medium and the medium channel 1321. The needle holder 131 abuts the rubber plug 320, allowing the medium to be ejected through the medium channel 1321. The spring 230 is used to abut the fixing seat 110 and the pressing member 210 to provide a force for the pressing member 210 to return. The first locking portion and the second locking portion are both provided on the bottle holder 220, and the first receiving portion and the second receiving portion are both provided on the fixing seat 110.

[0084] As a further optimization of this embodiment, see Figure 8 and Figure 9 The fixed seat 110 may include a first sliding portion 111 and a second sliding portion 112. The second sliding portion 112 is provided at an end of the first sliding portion 111 facing away from the pressing member 210, and is located inside the first sliding portion 111. Preferably, the first sliding portion 111 and the second sliding portion 112 may both be hollow, coaxially arranged cylindrical structures, and both have the same fixed end face 113. The fixed end face 113 is embedded in one end of the matching portion 122 facing the nozzle portion 121, and the first sliding portion 111 extends toward the side facing away from the nozzle portion 121, that is, extends into the matching portion 122; the second sliding portion 112 extends to both sides of the fixed end face 113, that is, one end of the second sliding portion 112 extends into the nozzle portion 121, and the other end extends into the matching portion 122. It is worth mentioning that in order to enable the medium reservoir 300 to be more accurately docked with the puncture assembly 130 , the second sliding portion 112 and the medium channel 1321 can be opposite and coaxially arranged.

[0085] Correspondingly, see Figure 1 、 Figure 8 and Figure 11 The bottle holder 220 includes a mounting portion 221 and a docking portion 222. The mounting portion 221 is used to assemble the bottle body 310 of the medium reservoir 300, and the docking portion 222 is used to dock with the pressing member 210. The mounting portion 221 is slidably connected to the second sliding portion 112, and the docking portion 222 is slidably connected to the first sliding portion 111. Preferably, the profiles of the mounting portion 221 and the second sliding portion 112 match, and the profiles of the docking portion 222 and the first sliding portion 111 match. This ensures that the bottle holder 220 slides more stably and smoothly along the fixing base 110.

[0086] In this embodiment, see Figure 12The pressing member 210 may include an operating portion 211 and a supporting portion 212 and a pushing portion 213 fixed to the operating portion 211 and coaxially arranged. The operating portion 211 may be an arc-shaped sheet structure and can adapt to the contours of most patients' fingers. The supporting portion 212 is hollow inside, and the pushing portion 213 is arranged inside the supporting portion 212. The supporting portion 212 and the pushing portion 213 extend in the same direction, and a spring 230 accommodating space is formed between the two. One end of the spring 230 is sleeved between the supporting portion 212 and the pushing portion 213 and abuts against the operating portion 211, and the other end abuts against the end of the first sliding portion 111 facing away from the operating portion 211, that is, abuts against the fixed end surface 113. Among them, the docking portion 222 of the bottle holder 220 is movably assembled on the pushing portion 213. The outer wall of the support portion 212 is adapted to the inner wall of the mating portion 122 of the nasal spray body 120, making the support portion 212 more stable when slidably connected to the mating portion 122. The push portion 213 and the docking portion 222 are slidably connected to the first sliding portion 111, and the outer wall contour formed by the push portion 213 and the docking portion 222 is adapted to the inner wall contour of the first sliding portion 111.

[0087] As a further optimization of this embodiment, see Figures 11 to 13The docking portion 222 of the bottle holder 220 is provided with a first buckle position 2221 and a second buckle position 2222. The first buckle position 2221 is provided on the side of the second buckle position 2222 facing the mounting portion 221. The push portion 213 is provided with an elastic block 2131 that cooperates with the first buckle position 2221 and the second buckle position 2222. During the first discharge stroke, the elastic block 2131 is engaged with the first buckle position 2221, and the end of the push portion 213 abuts against the upper end surface of the docking portion 222, thereby pushing the medium reservoir 300 to move. During the movement, the medium is continuously sprayed into the nasal cavity through the nozzle opening 1211. When the first locking portion and the first receiving portion are in contact with each other, the first discharge stroke is completed, causing a portion of the medium in the medium reservoir 300 to be ejected through the medium channel 1321, preferably half of the medium, but this is not limited to this. Specific settings can be made according to actual usage scenarios. During the second discharge stroke, the elastic stop 2131 engages with the second locking position 2222, and the push portion 213 pushes the medium reservoir 300 to move. When the second locking portion and the second receiving portion engage, the second discharge stroke is completed, causing the remaining medium in the medium reservoir 300 to be ejected through the medium channel 1321. In this embodiment, when the elastic stop 2131 engages with the first locking position 2221 and the second locking position 2222, respectively, the position of the connection between the push portion 213 of the pressing member 210 and the docking portion 222 of the bottle holder 220 can be changed. That is, during the two discharge strokes, the positions of the contact between the push portion 213 and the docking portion 222 are different, thereby pushing the medium reservoir 300 to continue moving and performing two discharge strokes. As a preferred example, the number of first buckles 2221 can be two and symmetrically arranged along the docking portion 222, the number of second buckles 2222 can be two and symmetrically arranged along the docking portion 222, and the two first buckles 2221 and the two second buckles 2222 are arranged in a one-to-one correspondence. The number of elastic blocks 2131 can also be two and symmetrically arranged along the docking portion 222. Preferably, the elastic block 2131 can include an elastic arm 2132 connected to the operating portion 211 and a buckle 2133 provided at the free end of the elastic arm 2132, the buckle 2133 having a guide slope that cooperates with the first buckle 2221 and the second buckle 2222.

[0088] It is worth mentioning that after the first discharge stroke, under the action of the spring 230, the buckle 2133 of the elastic stop 2131 disengages from the first buckle position 2221 under the action of the guide slope. At this time, the elastic arm 2132 rebounds inward, and the entire elastic stop 2131 moves toward the side facing away from the nozzle portion 121 due to the elastic force of the spring 230 until the free end of the push portion 213 abuts against the end of the docking portion 222 facing away from the mounting portion 221, and then stops moving. Preferably, the area where the support portion 212 and the mating portion 122 contact each other can be provided with a limiting structure to prevent the elastic stop 2131 from disengaging from the mating portion 122 during movement and when the pressing member 210 is in a fully extended state. The specific outline of the limiting structure is not limited and can be flexibly set according to the actual usage scenario.

[0089] Furthermore, in this embodiment, see Figure 8 and Figure 11 The first locking portion can be a first annular groove 2211 formed on the outer wall of the mounting portion 221, and the second locking portion can be a step 223 formed at the interface between the mounting portion 221 and the docking portion 222. The first receiving portion is an annular protrusion 1121 provided on the inner wall of the second sliding portion 112 and adapted to the first annular groove 2211. The second receiving portion is the free end 1122 of the second sliding portion 112 facing the pressing member 210, with the annular protrusion 1121 and the free end 1122 positioned adjacent to each other. When the first annular groove 2211 and the annular protrusion 1121 engage, a first discharge stroke is completed, causing a portion of the medium in the medium reservoir 300 to be ejected through the medium channel 1321. When the step 223 and the free end 1122 engage, a second discharge stroke is completed, causing the remaining medium in the medium reservoir 300 to be ejected through the medium channel 1321.

[0090] It is worth mentioning that the outer wall of the mounting portion 221 is also provided with a second annular groove 2212 having the same contour as the first annular groove 2211, and the second annular groove 2212 is provided at one end of the first annular groove 2211 facing away from the docking portion 222. The second annular groove 2212 is used to dock with the annular protrusion 1121 when the nasal spray device is not in use.

[0091] The working principle of the present invention is as follows:

[0092] When the nasal spray device is not in use, the annular protrusion 1121 is embedded in the second annular groove 2212, and the elastic stopper 2131 is engaged with the first buckle 2221. The above-mentioned position limiting makes the delivery mechanism 200 and the nasal spray mechanism 100 in a static state, and the needle tube 132 and the rubber plug 320 in a separated state;

[0093] The pressing member 210 is operated by a finger, so that the annular protrusion 1121 is disengaged from the second annular groove 2212. The pressing member 210 pushes the bottle holder 220 and the bottle body 310 toward the nozzle opening 1211. At this time, the needle tube 132 pierces the rubber plug 320, and the needle seat 131 abuts the rubber plug 320. Then, the medium is continuously pressed into the medium channel 1321 through the rubber plug 320 and sprayed into the nasal cavity through the nozzle opening 1211. When the annular protrusion 1121 is embedded in the first annular groove 2211, the delivery mechanism 200 and the nasal spray mechanism 100 are in a static state again, and the first discharge stroke is completed. Part of the medium in the bottle body 310 is sprayed out through the medium channel 1321.

[0094] When the finger releases the pressing member 210, the compressed spring 230 releases its elastic force, and the buckle 2133 of the elastic stop 2131 disengages from the first buckle 2221 under the action of the guiding slope. The elastic arm 2132 then rebounds inward to release the restraint, causing the entire pressing member 210 to move in the direction away from the nozzle opening 1211 under the elastic force of the spring 230 until the free end of the push portion 213 abuts against the end of the docking portion 222 facing away from the mounting portion 221 and stops moving. The bottle holder 220 remains stationary due to the restraint of the annular protrusion 1121 and the first annular groove 2211 and does not move with the pressing member 210. The above process completes the release of the pressing member 210 after the first discharge stroke.

[0095] The finger operates the pressing member 210 again, causing the elastic stopper 2131 to snap into the second snap position 2222. The pressing member 210 pushes the bottle holder 220 and the bottle body 310 toward the nozzle opening 1211 again. At this time, the needle seat 131 presses against the rubber plug 320 again, and the remaining medium is continuously pressed into the medium channel 1321 and sprayed into the nasal cavity through the nozzle opening 1211. When the step 223 and the free end 1122 are in contact with each other, the conveying mechanism 200 and the nasal spray mechanism 100 are in a stationary state again, completing the second discharge stroke, and the remaining medium in the bottle body 310 is sprayed out through the medium channel 1321.

[0096] The finger releases the pressing member 210 again, and the compressed spring 230 releases its elastic force again. The buckle 2133 of the elastic stop 2131 disengages from the second buckle position 2222 under the action of the guiding slope. The elastic arm 2132 then rebounds inward to release the restraint, causing the entire pressing member 210 to move away from the nozzle opening 1211 under the elastic force of the spring 230. The above process completes the release of the pressing member 210 after the second discharge stroke.

[0097] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A dual-dose nasal spray device, characterized in that: include: The nasal spray mechanism has a medium channel; a delivery mechanism, slidably assembled to the nasal spray mechanism; The medium storage device is assembled on the conveying mechanism; wherein, The delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is sprayed into the nasal cavity through the medium channel in two times; The conveying mechanism is provided with a first locking portion and a second locking portion along its sliding direction; The nasal spray mechanism is provided with a first receiving portion and a second receiving portion which are locked and matched with each other; When the first locking portion and the first receiving portion are locked and matched, a first discharge stroke is completed, so that part of the medium in the medium reservoir is ejected through the medium channel; When the second locking portion and the second receiving portion are locked and engaged, a second discharge stroke is completed, so that the remaining medium in the medium reservoir is ejected through the medium channel; The nasal spray mechanism includes a fixing seat; The conveying mechanism includes a pressing member, a bottle holder and a spring; The bottle holder is assembled on the pressing member and is used to fix the medium storage; The pressing member is slidably connected to the fixing seat to push the bottle holder, the medium reservoir and the medium channel to communicate with each other; the spring is used to abut against the fixing seat and the pressing member to provide a force for the pressing member to return; Wherein, the first locking portion and the second locking portion are both provided on the bottle holder, and the first receiving portion and the second receiving portion are both provided on the fixing seat; The two locking parts are adapted to respectively engage with the two receiving parts to limit the position, so as to stably lock the delivery mechanism at a preset position during the sliding process along the nasal spray mechanism, and after being locked, the two will not be easily separated due to external forces; The medium storage device includes a bottle body and a rubber plug; the medium is stored in the bottle body, and the rubber plug is used to seal the medium; The pressing member includes an operating portion, a supporting portion and a pushing portion fixed to the operating portion; the supporting portion is hollow inside, and the pushing portion is arranged inside the supporting portion; one end of the spring is sleeved between the supporting portion and the pushing portion.

2. The dual-dose nasal spray device according to claim 1, characterized in that The fixing seat includes a first sliding portion and a second sliding portion; The second sliding portion is provided at an end of the first sliding portion facing away from the pressing member and is located inside the first sliding portion; and The bottle holder includes a mounting portion and a docking portion; The mounting portion is used to assemble the medium storage, and the docking portion is used to dock with the pressing member; The mounting portion is slidably connected to the second sliding portion, and the docking portion is slidably connected to the first sliding portion.

3. The dual-dose nasal spray device according to claim 2, characterized in that The first locking portion is a first annular groove formed on the outer wall of the mounting portion, and the second locking portion is a step formed at the docking position between the mounting portion and the docking portion; and The first receiving portion is an annular protrusion provided on the inner wall of the second sliding portion and adapted to the first annular groove; the second receiving portion is a free end of the second sliding portion facing the pressing member; When the first annular groove and the annular protrusion are in contact with each other, a first discharge stroke is completed, causing part of the medium in the medium reservoir to be ejected through the medium channel; when the step and the free end are in contact with each other, a second discharge stroke is completed, causing the remaining medium in the medium reservoir to be ejected through the medium channel.

4. The dual-dose nasal spray device according to claim 3, characterized in that: The annular protrusion and the free end are arranged adjacent to each other; and / or The first sliding portion and the second sliding portion of the fixing seat are both hollow cylindrical structures; the mounting portion of the bottle holder is adapted to the contours of the second sliding portion, and the docking portion is adapted to the contours of the first sliding portion.

5. The dual-dose nasal spray device according to claim 3 or 4, characterized in that: The nasal spray mechanism also includes a nasal spray body and a puncture assembly; The nasal spray body includes a nozzle portion and a fitting portion that are interconnected; The puncture assembly is assembled in the nozzle portion, and the puncture assembly is provided with the medium channel; The fixing seat is assembled in the matching portion, and the second sliding portion and the medium channel are arranged opposite to each other, so that the medium reservoir and the puncture assembly are connected and matched with each other.

6. The dual-dose nasal spray device according to claim 5, characterized in that The puncture assembly includes a needle seat and a needle tube inserted into the needle seat; The needle tube is hollow inside to form the medium channel; In the process of the pressing member pushing the bottle holder and the medium reservoir toward the nozzle portion, the needle tube pierces the rubber plug, and the needle seat abuts against the rubber plug, so that the medium is ejected through the medium channel.

7. The dual-dose nasal spray device according to claim 5, characterized in that One end of the spring is sleeved between the support portion and the push portion, and the other end abuts against the end of the first sliding portion facing away from the operating portion; and the docking portion of the bottle holder is movably assembled on the push portion; Wherein, the supporting portion is slidably connected to the matching portion, and the outer wall of the supporting portion is adapted to the inner wall of the matching portion; and the pushing portion is slidably connected to the first sliding portion.

8. The dual-dose nasal spray device according to claim 7, characterized in that The docking portion of the bottle holder is provided with a first buckle position and a second buckle position; The first buckle position is located on a side of the second buckle position facing the mounting portion; and The push portion is provided with an elastic push block that matches the first buckle position and the second buckle position; When the first discharge stroke is executed, the elastic stop is engaged with the first buckle position, and the pressing member pushes the medium reservoir to move. When the first annular groove and the annular protrusion are in contact with each other, the first discharge stroke is completed, and part of the medium in the medium reservoir is ejected through the medium channel. When executing the second discharge stroke, the elastic block is buckled in the second buckle position, and the pressing member pushes the medium reservoir to move. When the step and the free end are in contact with each other, the second discharge stroke is completed, and the remaining medium in the medium reservoir is ejected through the medium channel.

9. The dual-dose nasal spray device according to claim 8, characterized in that The number of the first buckle positions is two, and they are symmetrically arranged along the docking portion; The number of the second buckle positions is two, and they are symmetrically arranged along the docking portion; The two first buckle positions and the two second buckle positions are arranged in a one-to-one correspondence; and The number of the elastic blocks is also two, and they are symmetrically arranged along the docking portion; Wherein, the elastic block includes an elastic arm connected to the operating part and a buckle provided at the free end of the elastic arm; the buckle is provided with a guiding slope that cooperates with the first buckle position and the second buckle position.

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