CN215461333U - Double-dose nasal spray device - Google Patents

Abstract

The utility model discloses a double-dose nasal spray device which comprises a nasal spray mechanism, a conveying mechanism and a medium storage device. The nose spraying mechanism is provided with a medium channel. The conveying mechanism is assembled on the nose spraying mechanism in a sliding way. The medium reservoir is assembled to the transport mechanism. The delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is ejected to the nasal cavity through the medium channel twice. The conveying mechanism is provided with a first locking part and a second locking part along the sliding direction of the conveying mechanism. The nose spraying mechanism is provided with a first bearing part and a second bearing part which are locked and matched. When the first locking part is in locking engagement with the first bearing part, the first discharge stroke is completed, so that part of the medium in the medium reservoir is ejected through the medium channel. When second locking portion and second accept looks lock joint cooperation, accomplish the second and discharge the stroke, make the surplus medium in the medium accumulator spout through medium channel, this patent has improved patient's use experience to a great extent.

Description

Double-dose nasal spray device

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a double-dose nasal spray device.

Background

Sinusitis is a nonspecific inflammation of the mucosa of the sinuses, a common frequently encountered disease in the nose, generally divided into acute and chronic types. Many people suffer from sinusitis. Based on the medicine can realize the systemic quick absorption of human body through the high blood flow rate of sinus mucosa, consequently to the treatment of sinusitis, current most effective and the most convenient mode is through the nasal spray device for nasal cavity transport medicine to realize that the medicine can carry out whole body through the nasal passage and deliver, in order to reach the purpose of quick treatment.

The nasal spray device is simple to operate, strong in practicability and popular with patients. However, the conventional nasal spraying device is mainly based on a single-stroke method, each nasal spraying device can only be used once, and if the patient has a serious illness and is in an outgoing period, a large number of nasal spraying devices need to be carried, which brings great inconvenience. Of course, the existing nasal spray device further comprises a two-stroke type or even a multi-stroke type, and although the problem that the patient is inconvenient to carry is solved to a great extent, the stability of the limiting structure in the nasal spray device is poor, so that the patient can easily perform misoperation in a non-use state in the carrying process to cause the leakage of the internal medicine, on one hand, the medicine is wasted, on the other hand, the nasal spray device can be worth to be scrapped and cannot be used continuously, and particularly, when the state of illness of the patient is in a serious state, the timely treatment of the patient is influenced, and potential safety hazards are brought.

Based on the defects, the inventor(s) have studied for many years and dedicated to develop a double-dose nasal spray device, which can greatly improve the stability of the internal limiting structure and reduce the probability of being touched by mistake.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a double-dose nasal spray device, wherein a conveying mechanism is respectively in limit fit with two butt joint parts through two locking parts in the process of executing two discharge strokes on a medium storage device so as to stably lock the conveying mechanism at a preset position in the sliding process of the nasal spray mechanism, and the conveying mechanism and the nasal spray mechanism cannot be easily separated due to the action of external force after being locked, so that the probability of being touched by mistake is greatly reduced, and the use experience of a patient is improved.

The technical scheme provided by the utility model is as follows:

a dual dose nasal spray device comprising:

the nose spraying mechanism is provided with a medium channel;

a conveying mechanism slidably assembled to the nasal spray mechanism;

a medium reservoir assembled to the transport mechanism; wherein the content of the first and second substances,

the delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is ejected to the nasal cavity through the medium channel twice;

the conveying mechanism is provided with a first locking part and a second locking part along the sliding direction of the conveying mechanism;

the nose spraying mechanism is provided with a first bearing part and a second bearing part which are locked and matched;

when the first locking part is in locking joint with the first bearing part, the first discharge stroke is completed, and partial medium in the medium reservoir is sprayed out through the medium channel;

when the second locking part is in locking joint with the second bearing part, the second discharge stroke is completed, and the residual medium in the medium reservoir is sprayed out through the medium channel.

In this patent, the volume of storage medium is equivalent to the volume of two times medium in the ordinary single dose accumulator in the medium accumulator, and under conveying mechanism's transport, the medium can divide twice to spout the medium channel of mechanism to the nasal cavity through the nose, has improved the portability that the patient carried greatly. Wherein the pressing of the transport mechanism in a specific direction by hand can be used to perform two discharge strokes of the medium reservoir. After the first discharge stroke is finished, the first locking part and the first bearing part are locked and matched, so that the conveying mechanism can be locked on the nose spraying mechanism and cannot continuously slide, and the nose spraying mechanism cannot be easily separated due to the action of external force, and therefore, the residual medium can be prevented from leaking and can be in a sealed state. And then, the conveying mechanism is continuously pressed along the direction to discharge the medium for the second time until all the residual medium in the medium storage is ejected out through the medium channel when the second locking part is in locking joint with the second receiving part. In this patent, come respectively through two locking parts and carry out spacing cooperation with two butt joint portions, can lock stably conveying mechanism in spouting the predetermined position of mechanism slip in-process along the nose, and greatly reduced is touched the probability by the mistake, improves patient's use and experiences.

Further preferably, the nasal spray mechanism comprises a fixed seat;

the conveying mechanism comprises a pressing piece, a bottle support and a spring;

the bottle holder is assembled on the pressing piece and used for fixing the medium storage;

the pressing piece is connected to the fixed seat in a sliding mode so as to push the bottle holder, the medium storage and the medium channel to be communicated; the spring is used for abutting against the fixed seat and the pressing piece so as to provide a force for returning the pressing piece;

the first locking part and the second locking part are arranged on the bottle support, and the first bearing part and the second bearing part are arranged on the fixed seat.

Further preferably, the fixing seat comprises a first sliding part and a second sliding part;

the second sliding part is arranged at one end of the first sliding part back to the pressing piece and is positioned in the first sliding part; and

the bottle support comprises a mounting part and a butt joint part;

the mounting part is used for assembling a medium storage, and the butt joint part is used for butting the pressing piece;

the mounting portion is slidably coupled to the second sliding portion, and the docking portion is slidably coupled to the first sliding portion.

Further preferably, the first locking portion is a first annular groove formed in an outer wall of the mounting portion, and the second locking portion is a landing formed at a butt joint position of the mounting portion and the butt joint portion; and

the first bearing part is an annular bulge which is arranged on the inner wall of the second sliding part and is matched with the first annular groove, and the second bearing part is a free end of the second sliding part facing one side of the pressing piece;

when the first annular groove is butted with the annular bulge, the first discharge stroke is completed, and partial medium in the medium reservoir is sprayed out through the medium channel; when the step and the free end are butted, the second discharge stroke is completed, and the residual medium in the medium reservoir is sprayed out through the medium channel.

Further preferably, the annular projection and the free end are disposed adjacent to each other; and/or

The first sliding part and the second sliding part of the fixed seat are both hollow tubular structures; and the installation part of the bottle support is matched with the profile of the second sliding part, and the butt joint part is matched with the profile of the first sliding part.

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

the nose spray body comprises a nozzle part and a matching part which are communicated with each other;

the puncture component is assembled in the nozzle part and is provided with the medium channel;

the fixing seat is assembled in the matching part, and the second sliding part and the medium channel are oppositely arranged, so that the medium storage and the puncture assembly are oppositely matched.

Further preferably, the puncture assembly comprises a needle seat and a needle tube inserted in the needle seat;

the needle tube is hollow inside to form the medium channel; and

the medium storage comprises a bottle body and a rubber plug;

the bottle body is stored with a medium, and the rubber plug is used for sealing the medium;

when the pressing piece pushes the bottle support and the medium storage to move towards the nozzle part, the needle tube pierces the rubber plug, and the needle seat abuts against the rubber plug, so that the medium is ejected out through the medium channel.

Further preferably, the pressing piece comprises an operating part, and a supporting part and a pushing part which are fixed on the operating part;

the supporting part is hollow, and the pushing part is arranged in the supporting part;

one end of the spring is sleeved between the supporting part and the pushing part, and the other end of the spring is abutted against one end of the first sliding part back to the operating part; the butt joint part of the bottle support is movably assembled on the pushing part;

the supporting part is connected to the matching part in a sliding mode, and the outer wall of the supporting part is matched with the inner wall of the matching part; and the pushing part is connected with the first sliding part in a sliding way.

Further preferably, the butt joint part of the bottle holder is provided with a first buckling position and a second buckling position;

the first buckling position is positioned on one side of the second buckling position facing the mounting part; and

the pushing part is provided with an elastic pushing block matched with the first buckling position and the second buckling position;

when the first discharge stroke is executed, the elastic abutting block is buckled at the first buckling position, the pressing piece pushes the medium storage to move, and when the first annular groove is butted with the annular bulge, the first discharge stroke is completed, so that part of the medium in the medium storage is sprayed out through the medium channel;

when the second discharge stroke is executed, the elastic abutting block is buckled at the second buckling position, the pressing piece pushes the medium storage to move, and when the step platform is butted with the free end, the second discharge stroke is completed, so that the residual medium in the medium storage is sprayed out through the medium channel.

Further preferably, the number of the first buckling positions is two, and the first buckling positions are symmetrically arranged along the butt joint part;

the number of the second buckling positions is two, and the second buckling positions are symmetrically arranged along the butt joint part;

the two first buckling positions and the two second buckling positions are arranged in a one-to-one corresponding mode; and

the number of the elastic abutting blocks is also two, and the elastic abutting blocks are symmetrically arranged along the butt joint part;

the elastic abutting block comprises an elastic arm connected to the operating part and a buckle arranged at the free end of the elastic arm; the buckle is provided with a guide slope surface matched with the first buckling position and the second buckling position.

The utility model has the technical effects that:

1. in this patent, come respectively through two locking parts and carry out spacing cooperation with two butt joint portions, can lock stably conveying mechanism in spouting the predetermined position of mechanism slip in-process along the nose, and greatly reduced is touched the probability by the mistake, improves patient's use and experiences. In particular, pressing the transport mechanism in a particular direction by hand may be used to perform two discharge strokes on the media reservoir. After the first discharge stroke is finished, the first locking part and the second locking part are locked and matched, so that the conveying mechanism can be locked on the nose spraying mechanism and cannot continuously slide, and the nose spraying mechanism cannot be easily separated due to the action of external force, therefore, the residual medium can be prevented from being leaked, and the nose spraying mechanism can be in a sealed state for next use. And then, the conveying mechanism is continuously pressed along the direction to discharge the medium for the second time until all the residual medium in the medium storage is ejected out through the medium channel when the second locking part is in locking joint with the second receiving part.

2. In this patent, the volume of storage medium is equivalent to the volume of two times medium in the ordinary single dose accumulator in the medium accumulator, and under conveying mechanism's transport, the medium can divide twice to spout the medium channel of mechanism through the nose and spout to the nasal cavity, has improved the portability that the patient carried this nose and has spouted the device greatly.

3. In this patent, first locking portion and second locking portion all locate on the bottle holds in the palm, and first accepting portion and second accepting portion all locate on the fixing base, through the operation pressing piece for form ingenious cooperation between the structure of bottle support and fixing base, in order to reach firm spacing effect.

4. In this patent, detain the position through the butt joint portion at the bottle support be equipped with first knot position and second, and be equipped with elasticity in supporting pushing away the portion and support the piece, detain the position through setting up first knot position into being located the second and detain one side of position towards the installation department, so, when elasticity supports the piece and docks first knot position and second respectively and detains the position, can change the position that supports the butt joint between the butt joint portion that pushes away the portion and the bottle support of pressing member, and then realize carrying out twice discharge stroke to the medium accumulator.

Drawings

The utility model is described in further detail below with reference to the following figures and detailed description:

FIG. 1 is a cross-sectional view of a product of the utility model in an unused state;

FIG. 2 is a cross-sectional view of the product of the present invention after a first ejection of media;

FIG. 3 is a cross-sectional view of the product of the present invention after the first ejection of the medium, with the pressing member returning to the initial state;

FIG. 4 is a cross-sectional view of the product of the present invention after a second ejection of media;

FIG. 5 is a cross-sectional view of the product of the present invention after a second ejection of media, with the pusher returning to its initial state;

FIG. 6 is a cross-sectional view of the spike assembly of the product of the present invention;

FIG. 7 is a cross-sectional view of the nasal spray body of the nasal spray mechanism of the product of the present invention;

FIG. 8 is a cross-sectional view of the nasal spray mechanism of the present invention with the nasal spray body and the anchor assembled;

FIG. 9 is a cross-sectional view of the assembly of the nosepiece body, the mounting bracket and the spring of the product of the present invention;

FIG. 10 is a cross-sectional view of a media reservoir of the product of the present invention;

FIG. 11 is a cross-sectional view of the assembled media holder and bottle holder of the product of the present invention;

FIG. 12 is a cross-sectional view of a press of the present invention;

fig. 13 is a cross-sectional view of the assembly of the media reservoir, vial holder and press of the product of the present invention.

The reference numbers illustrate:

100. a nasal spray mechanism; 110. a fixed seat; 111. a first sliding section; 112. a second sliding section; 1121. an annular projection; 1122. a free end; 113. a fixed end face; 120. a nasal spray body; 121. a nozzle portion; 1211. a nozzle opening; 122. a fitting portion; 130. a puncture assembly; 131. a needle seat; 132. a needle tube; 1321. a media channel; 200. a conveying mechanism; 210. a pressing member; 211. an operation section; 212. a support portion; 213. a pushing part; 2131. an elastic resisting block; 2132. a resilient arm; 2133. buckling; 220. a bottle holder; 221. an installation part; 2211. a first annular groove; 2212. a second annular groove; 222. a docking portion; 2221. a first buckling position; 2222. a second buckling position; 223. a landing; 230. a spring; 300. a media reservoir; 310. a bottle body; 320. a rubber plug.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

According to an embodiment of the present invention, as shown in fig. 1 to 5, a dual-dose nasal spray device includes a nasal spray mechanism 100, a delivery mechanism 200, and a media reservoir 300. The nasal spray mechanism 100 has a media passage 1321. The transport mechanism 200 is slidably assembled to the nasal spray mechanism 100. The medium reservoir 300 is assembled to the transport mechanism 200. The delivery mechanism 200 is configured to perform two discharge strokes on the medium reservoir 300, causing the medium in the medium reservoir 300 to be ejected to the nasal cavity through the medium passage 1321 in two times. The conveying mechanism 200 is provided with a first lock portion and a second lock portion along its sliding direction. The nose spraying mechanism 100 has a first receiving portion and a second receiving portion that are engaged with each other. When the first locking portion and the first receiving portion are in locking engagement, a first discharge stroke is completed, and a part of the medium in the medium reservoir 300 is ejected through the medium passage 1321. When the second locking portion and the second receiving portion are in locking engagement, the second discharge stroke is completed, and the remaining medium in the medium reservoir 300 is ejected through the medium passage 1321.

In this patent, the volume of the interior storage medium of medium reservoir 300 is equivalent to the volume of twice medium in the ordinary single dose accumulator, and under conveying mechanism 200's transport, the medium can be divided twice and spouted to the nasal cavity through medium channel 1321 of nasal spray mechanism 100, has improved the portability that the patient carried greatly. Wherein two discharge strokes of the medium reservoir 300 may be performed by pressing the transport mechanism 200 in a specific direction by hand. After the first discharging stroke is finished, the first locking part and the first receiving part are locked and matched, so that the conveying mechanism 200 can be locked on the nose spraying mechanism 100 and cannot slide continuously and cannot be separated easily due to the action of external force, and thus, the residual medium can be prevented from leaking and can be in a sealed state for the next use. The conveyance mechanism 200 is then continuously pressed in this direction to perform the second discharge of the medium until the remaining medium in the medium reservoir 300 is all ejected through the medium passage 1321 when the second lock portion and the second receiving portion are locked in engagement. In this patent, come respectively through two locking parts and carry out spacing cooperation with two butt joint portions 222, can lock conveying mechanism 200 steadily in spouting the predetermined position of mechanism 100 slip in-process along the nose, and greatly reduced is touched the probability by the mistake, improves patient's use and experiences.

It should be noted that the medium provided by the present invention may be a liquid medicine for treating rhinitis, or other liquids for patients, and of course, the medium may also be in a powder form, which is not limited herein.

In this embodiment, referring to fig. 1, the nasal spray mechanism 100 may comprise a holder 110, a nasal spray body 120 and a piercing assembly 130. Specifically, referring to fig. 7, the nasal spray body 120 may include a nozzle portion 121 and a fitting portion 122 that communicate with each other. The nozzle part 121 and the matching part 122 can be hollow and coaxially arranged tube structures, and one end of the nozzle part 121 opposite to the matching part 122 is provided with a nozzle opening 1211, and the medium in the medium reservoir 300 can be sprayed from the medium channel 1321 to the nasal cavity through the nozzle opening 1211. Preferably, the nozzle 1211 can atomize the medium so that the medium can be sufficiently filled in the nasal cavity, thereby ensuring that the drug can be rapidly delivered through the nasal cavity and the whole body, thereby achieving the purpose of rapid treatment.

Further, the puncture assembly 130 is assembled in the nozzle portion 121, and the puncture assembly 130 is provided with a medium passage 1321, and the puncture assembly 130 is used for docking and communicating with the medium reservoir 300 so as to make the medium flow into the medium passage 1321. In a preferred example, and with reference to fig. 6, spike assembly 130 may include a hub 131 and a needle cannula 132. The needle seat 131 is assembled in the nozzle portion 121 and is adapted to the inner contour of the nozzle portion 121. Needle cannula 132 is assembled within hub 131 and conforms to the internal profile of hub 131. Needle cannula 132 is hollow to define a media passage 1321, and needle cannula 132 has one end in communication with nozzle opening 1211 and the other end extending outside of needle hub 131 for mating with media reservoir 300. Correspondingly, referring to fig. 10, the medium reservoir 300 may include a bottle body 310 and a rubber stopper 320, the bottle body 310 stores the medium, and the rubber stopper 320 is slidably assembled in the bottle body 310 for sealing and pressing the medium. The bottle body 310 is assembled on the conveying mechanism 200, the conveying mechanism 200 drives the bottle body 310 to move towards the puncture assembly 130, and the opening of the bottle body 310 at least can ensure that one end of the needle seat 131, which is opposite to the nozzle 1211, extends into the interior of the bottle body, so that the needle tube 132 punctures the rubber plug 320 and contacts with the medium, and the end of the needle seat 131 pushes against the rubber plug 320, thereby realizing the extrusion of the medium into the medium channel 1321. Preferably, in order to facilitate the needle tube 132 to easily pierce the rubber plug 320, two blind holes may be respectively formed in the central regions of the upper and lower end surfaces of the rubber plug 320, and a piercing part is formed between the two blind holes, so that the needle tube 132 is easy to pierce due to the thin piercing part, and the two blind holes can play a guiding role, thereby facilitating the sliding of the needle tube 132, and preventing the needle tube 132 from deviating from the central position of the rubber plug 320 in the sliding process.

Further, referring to fig. 8, the fixing seat 110 is assembled in the matching portion 122, and the conveying mechanism 200 is slidably assembled in the matching portion 122, so that the conveying mechanism 200 and the fixing seat 110 can be skillfully matched in a limiting manner, and a stable limiting effect can be achieved.

Specifically, in the present embodiment, referring to fig. 1 and 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 for fixing the bottle body 310 of the medium reservoir 300. The pressing member 210 is slidably connected to the fixing base 110 to push the bottle holder 220 and the medium reservoir 300 to move toward the nozzle portion 121. And during movement, the needle 132 pierces the plug 320 to place the media in communication with the media passage 1321. And the needle seat 131 abuts against the rubber plug 320, so that the medium is ejected out through the medium channel 1321. The spring 230 is used to abut against the fixing base 110 and the pressing piece 210 to provide a return force of the pressing piece 210. The first locking portion and the second locking portion are disposed on the bottle holder 220, and the first receiving portion and the second receiving portion are disposed on the fixing base 110.

As a further optimization of the present embodiment, referring to fig. 8 and 9, the fixing base 110 may include a first sliding portion 111 and a second sliding portion 112. The second sliding portion 112 is disposed at an end of the first sliding portion 111 opposite to the pressing member 210, and is located in the first sliding portion 111. Preferably, the first sliding portion 111 and the second sliding portion 112 are both hollow and coaxially disposed in a cylindrical structure, and both have the same fixed end surface 113. The fixed end surface 113 is embedded in one end of the matching part 122 facing the nozzle part 121, and the first sliding part 111 extends towards one side opposite to the nozzle part 121, namely extends into the matching part 122; the second sliding portion 112 extends to both sides of the fixed end surface 113, that is, one end of the second sliding portion 112 extends into the nozzle portion 121, and the other end extends into the engaging portion 122. It is noted that second slide 112 and media channel 1321 may be positioned coaxially and in opposition to each other in order to provide a more precise abutting engagement of media reservoir 300 with spike assembly 130.

Correspondingly, referring to fig. 1, 8 and 11, the bottle holder 220 includes a mounting portion 221 and an abutment portion 222. The mounting portion 221 is used to assemble the bottle body 310 of the medium reservoir 300, and the abutting portion 222 is used to abut against the pressing member 210. The mounting portion 221 is slidably connected to the second sliding portion 112, and the abutting portion 222 is slidably connected to the first sliding portion 111. Preferably, the mounting portion 221 is matched with the contour of the second sliding portion 112, and the abutting portion 222 is matched with the contour of the first sliding portion 111, so that the bottle holder 220 can be more stable and smooth in the sliding process along the fixing base 110.

In this embodiment, referring to fig. 12, the 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 disposed. The handle portion 211 may be an arc-shaped sheet structure and can be adapted to the contour of most patient's fingers. The supporting portion 212 is hollow, the pushing portion 213 is disposed in 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 therebetween. One end of the spring 230 is sleeved between the supporting portion 212 and the pushing portion 213, and is abutted against the operating portion 211, and the other end is abutted against one end of the first sliding portion 111 opposite to the operating portion 211, that is, the fixed end surface 113. The abutting portion 222 of the bottle holder 220 is movably assembled to the pushing portion 213. And the outer wall of the supporting portion 212 is matched with the inner wall of the matching portion 122 of the nose spray body 120, so that the supporting portion 212 is more stable when being slidably connected to the matching portion 122. The abutting portion 213 and the abutting portion 222 are slidably connected to the first sliding portion 111, and an outer wall profile formed by the abutting portion 213 and the abutting portion 222 is matched with an inner wall profile of the first sliding portion 111.

As a further optimization of the present embodiment, referring to fig. 11 to 13, the abutting portion 222 of the bottle holder 220 is provided with a first fastening position 2221 and a second fastening position 2222, and the first fastening position 2221 is provided on a side of the second fastening position 2222 facing the mounting portion 221. And the pushing portion 213 has an elastic pushing block 2131 matching with the first fastening position 2221 and the second fastening position 2222. When the first discharging stroke is executed, the elastic abutting block 2131 is buckled with the first buckling portion 2221, and the end of the abutting portion 213 abuts against the upper end surface inside the abutting portion 222, and pushes the medium storage 300 to move. During the movement, the medium is continuously sprayed to the nasal cavity through the nozzle 1211, and when the first locking portion and the first receiving portion are abutted, the first discharging stroke is completed, so that a part of the medium in the medium reservoir 300 is sprayed out through the medium passage 1321, preferably a half of the medium, but the utility model is not limited thereto, and can be specifically set according to the actual use scene. When the second discharging stroke is executed, the elastic abutting block 2131 is buckled with the second buckling position 2222, the abutting portion 213 pushes the medium storage 300 to move, and when the second locking portion and the second receiving portion are butted, the second discharging stroke is completed, so that the residual medium in the medium storage 300 is ejected through the medium channel 1321. In this embodiment, when the elastic abutting block 2131 abuts against the first fastening portion 2221 and the second fastening portion 2222, the abutting position between the abutting portion 213 of the pressing member 210 and the abutting portion 222 of the bottle holder 220 can be changed, that is, the abutting positions of the abutting portion 213 and the abutting portion 222 are different during two discharging strokes, so that the medium reservoir 300 can be pushed to move continuously to perform two discharging strokes. As a preferred example, the number of the first fastening positions 2221 may be two and are symmetrically arranged along the abutting portion 222, the number of the second fastening positions 2222 is two and are symmetrically arranged along the abutting portion 222, and the two first fastening positions 2221 and the two second fastening positions 2222 are arranged in a one-to-one correspondence. The number of the elastic abutting blocks 2131 is also two, and the elastic abutting blocks are symmetrically arranged along the abutting portion 222. Preferably, the elastic support block 2131 may include an elastic arm 2132 connected to the operating portion 211 and a buckle 2133 disposed at a free end of the elastic arm 2132, and the buckle 2133 has a guiding slope surface matching with the first buckling position 2221 and the second buckling position 2222.

It should be noted that after the first discharging stroke, under the action of the spring 230, the buckle 2133 of the elastic abutting block 2131 is disengaged from the first buckle 2221 under the action of the guiding slope, at this time, the elastic arm 2132 rebounds inwards, and the whole elastic abutting block 2131 moves towards the side back to the nozzle portion 121 due to the elastic force of the spring 230, until the free end of the abutting portion 213 abuts against the end of the abutting portion 222 back to the mounting portion 221, and stops moving. Preferably, the contact area between the supporting portion 212 and the matching portion 122 is configured to be a limiting structure, so as to prevent the elastic abutting block 2131 from being separated from the matching portion 122 during the movement process and when the pressing element 210 is in a fully extended state, wherein the specific contour of the limiting structure is not limited, and the limiting structure can be flexibly configured according to the actual use scenario.

Further, in the present embodiment, referring to fig. 8 and 11, the first locking portion may be a first annular groove 2211 opened on the outer wall of the mounting portion 221, and the second locking portion may be a landing 223 formed at a butt joint position of the mounting portion 221 and the butt joint portion 222; the first receiving portion is an annular protrusion 1121 disposed on the inner wall of the second sliding portion 112 and adapted to the first annular groove 2211, the second receiving portion is a free end 1122 of the second sliding portion 112 facing the pressing member 210, and the annular protrusion 1121 and the free end 1122 are disposed adjacent to each other. When the first annular recess 2211 and the annular projection 1121 are abutted, a first discharge stroke is completed, and a part of the medium in the medium reservoir 300 is ejected through the medium passage 1321. When the landing 223 abuts the free end 1122, a second discharge stroke is completed, causing the remaining media in the media reservoir 300 to be ejected through the media passage 1321.

It should be noted that the outer wall of the mounting portion 221 further defines a second annular groove 2212 having a contour identical to that of the first annular groove 2211, the second annular groove 2212 is disposed at an end of the first annular groove 2211 opposite to the abutting portion 222, and the second annular groove 2212 is used for abutting and matching with the annular protrusion 1121 when the nasal spray device is not in use.

The working principle of the utility model is as follows:

when the nasal spraying device is not used, the annular protrusion 1121 is embedded in the second annular groove 2212, and the elastic abutting block 2131 is buckled with the first buckling position 2221, so that the conveying mechanism 200 and the nasal spraying mechanism 100 are in a static state, and the needle tube 132 and the rubber plug 320 are in a separated state due to the above limiting;

the pressing piece 210 is operated by fingers, so that the annular protrusion 1121 is separated from the second annular groove 2212, the pressing piece 210 pushes the bottle holder 220 and the bottle body 310 to move towards the direction of the nozzle opening 1211, at this time, the needle tube 132 pierces the rubber plug 320, the needle base 131 abuts against the rubber plug 320, a medium is continuously pressed into the medium channel 1321 through the rubber plug 320 and is sprayed to the nasal cavity through the nozzle opening 1211, until the annular protrusion 1121 is embedded into the first annular groove 2211, the conveying mechanism 200 and the nasal spraying mechanism 100 are in a static state again, a first discharge stroke is completed, and part of the medium in the bottle body 310 is sprayed out through the medium channel 1321;

the finger releases the pressing member 210, the spring 230 in the compressed state releases the elastic force, the buckle 2133 of the elastic abutting block 2131 disengages from the first buckle 2221 under the action of the guiding slope, and the elastic arm 2132 rebounds inwards to release the limit, so that the whole pressing member 210 moves in the direction back to the nozzle opening 1211 under the action of the elastic force of the spring 230 until the free end of the abutting portion 213 abuts against one end of the abutting portion 222 back to the mounting portion 221, and the bottle holder 220 is in the stationary state all the time due to the limit of the annular protrusion 1121 and the first annular groove 2211, and does not move along with the pressing member 210. The above process is completed by releasing the pressing member 210 after the first discharge stroke is completed;

the finger operates the pressing member 210 again, so that the elastic abutting block 2131 is buckled at the second buckling position 2222, the pressing member 210 pushes the bottle holder 220 and the bottle body 310 to move towards the direction of the nozzle opening 1211 again, at this time, the needle seat 131 abuts against the rubber plug 320 again, the residual medium is continuously pressed into the medium channel 1321 and is sprayed to the nasal cavity through the nozzle opening 1211, until the ladder 223 and the free end 1122 are butted, the conveying mechanism 200 and the nasal spray mechanism 100 are in the static state again, the second discharge stroke is completed, and the residual medium in the bottle body 310 is sprayed out through the medium channel 1321;

the finger releases the pressing member 210 again, the spring 230 in the compressed state releases the elastic force again, the buckle 2133 of the elastic abutting block 2131 is disengaged from the second buckle 2222 under the action of the guide slope, and the elastic arm 2132 rebounds inwards to release the limit, so that the whole pressing member 210 moves in the direction back to the nozzle opening 1211 under the action of the elastic force of the spring 230. The above process completes the release of the pressing member 210 after the second discharge stroke is completed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A dual dose nasal spray device, comprising:

the nose spraying mechanism is provided with a medium channel;

a conveying mechanism slidably assembled to the nasal spray mechanism;

a medium reservoir assembled to the transport mechanism; wherein the content of the first and second substances,

the delivery mechanism is configured to perform two discharge strokes on the medium reservoir, so that the medium in the medium reservoir is ejected to the nasal cavity through the medium channel twice;

the conveying mechanism is provided with a first locking part and a second locking part along the sliding direction of the conveying mechanism;

the nose spraying mechanism is provided with a first bearing part and a second bearing part which are locked and matched;

when the first locking part is in locking joint with the first bearing part, the first discharge stroke is completed, and partial medium in the medium reservoir is sprayed out through the medium channel;

when the second locking part is in locking joint with the second bearing part, the second discharge stroke is completed, and the residual medium in the medium reservoir is sprayed out through the medium channel.

2. A dual dose nasal spray device according to claim 1,

the nose spraying mechanism comprises a fixed seat;

the conveying mechanism comprises a pressing piece, a bottle support and a spring;

the bottle holder is assembled on the pressing piece and used for fixing the medium storage;

the pressing piece is connected to the fixed seat in a sliding mode so as to push the bottle holder, the medium storage and the medium channel to be communicated; the spring is used for abutting against the fixed seat and the pressing piece so as to provide a force for returning the pressing piece;

the first locking part and the second locking part are arranged on the bottle support, and the first bearing part and the second bearing part are arranged on the fixed seat.

3. A dual dose nasal spray device according to claim 2,

the fixed seat comprises a first sliding part and a second sliding part;

the second sliding part is arranged at one end of the first sliding part back to the pressing piece and is positioned in the first sliding part; and

the bottle support comprises a mounting part and a butt joint part;

the mounting part is used for assembling a medium storage, and the butt joint part is used for butting the pressing piece;

the mounting portion is slidably coupled to the second sliding portion, and the docking portion is slidably coupled to the first sliding portion.

4. A dual dose nasal spray device according to claim 3,

the first locking part is a first annular groove formed in the outer wall of the mounting part, and the second locking part is a step formed at the butt joint position of the mounting part and the butt joint part; and

the first bearing part is an annular bulge which is arranged on the inner wall of the second sliding part and is matched with the first annular groove, and the second bearing part is a free end of the second sliding part facing one side of the pressing piece;

when the first annular groove is butted with the annular bulge, the first discharge stroke is completed, and partial medium in the medium reservoir is sprayed out through the medium channel; when the step and the free end are butted, the second discharge stroke is completed, and the residual medium in the medium reservoir is sprayed out through the medium channel.

5. A dual dose nasal spray device according to claim 4,

the annular bulge and the free end are adjacently arranged; and/or

The first sliding part and the second sliding part of the fixed seat are both hollow tubular structures; and the installation part of the bottle support is matched with the profile of the second sliding part, and the butt joint part is matched with the profile of the first sliding part.

6. A dual dose nasal spray device according to claim 4 or 5,

the nose spraying mechanism also comprises a nose spraying body and a puncture assembly;

the nose spray body comprises a nozzle part and a matching part which are communicated with each other;

the puncture component is assembled in the nozzle part and is provided with the medium channel;

the fixing seat is assembled in the matching part, and the second sliding part and the medium channel are oppositely arranged, so that the medium storage and the puncture assembly are oppositely matched.

7. A dual dose nasal spray device according to claim 6,

the puncture assembly comprises a needle seat and a needle tube inserted in the needle seat;

the needle tube is hollow inside to form the medium channel; and

the medium storage comprises a bottle body and a rubber plug;

the bottle body is stored with a medium, and the rubber plug is used for sealing the medium;

when the pressing piece pushes the bottle support and the medium storage to move towards the nozzle part, the needle tube pierces the rubber plug, and the needle seat abuts against the rubber plug, so that the medium is ejected out through the medium channel.

8. A dual dose nasal spray device according to claim 6,

the pressing piece comprises an operating part, and a supporting part and a pushing part which are fixed on the operating part;

the supporting part is hollow, and the pushing part is arranged in the supporting part;

one end of the spring is sleeved between the supporting part and the pushing part, and the other end of the spring is abutted against one end of the first sliding part back to the operating part; the butt joint part of the bottle support is movably assembled on the pushing part;

the supporting part is connected to the matching part in a sliding mode, and the outer wall of the supporting part is matched with the inner wall of the matching part; and the pushing part is connected with the first sliding part in a sliding way.

9. A dual dose nasal spray device according to claim 8,

the butt joint part of the bottle support is provided with a first buckling position and a second buckling position;

the first buckling position is positioned on one side of the second buckling position facing the mounting part; and

the pushing part is provided with an elastic pushing block matched with the first buckling position and the second buckling position;

when the first discharge stroke is executed, the elastic abutting block is buckled at the first buckling position, the pressing piece pushes the medium storage to move, and when the first annular groove is butted with the annular bulge, the first discharge stroke is completed, so that part of the medium in the medium storage is sprayed out through the medium channel;

when the second discharge stroke is executed, the elastic abutting block is buckled at the second buckling position, the pressing piece pushes the medium storage to move, and when the step platform is butted with the free end, the second discharge stroke is completed, so that the residual medium in the medium storage is sprayed out through the medium channel.

10. A dual dose nasal spray device according to claim 9,

the number of the first buckling positions is two, and the first buckling positions are symmetrically arranged along the butt joint part;

the number of the second buckling positions is two, and the second buckling positions are symmetrically arranged along the butt joint part;

the two first buckling positions and the two second buckling positions are arranged in a one-to-one corresponding mode; and

the number of the elastic abutting blocks is also two, and the elastic abutting blocks are symmetrically arranged along the butt joint part;

the elastic abutting block comprises an elastic arm connected to the operating part and a buckle arranged at the free end of the elastic arm; the buckle is provided with a guide slope surface matched with the first buckling position and the second buckling position.

Images