Large-dose atomization device

Abstract

The invention discloses a large-dose atomization device which comprises a barrel, a driving mechanism, a medicine bottle and an atomization assembly. The barrel comprises a first cavity which can be opened; the driving mechanism is arranged in the cylinder body and comprises a push rod extending into the first cavity; the medicine bottle is arranged in the first cavity and can continuously and quantitatively supply liquid; the medicine bottle comprises a pressure chamber and a liquid storage chamber which are communicated front and back; the atomization assembly comprises an atomization chip arranged at the front end of the pressure chamber and communicated with the pressure chamber, and the atomization chip is used for atomizing liquid; wherein the push rod is constructed to be a reciprocating linear moving part capable of being in sliding sealing fit with the pressure chamber, the push rod can be pressurized and empty substances in the pressure chamber when moving forwards, and liquid in the liquid storage chamber is sucked at the moment when the push rod moves backwards to be separated from the pressure chamber. The large-dose atomization device can store large-dose liquid and can be matched with the push rod to continuously and quantitatively spray, and the requirement for multiple-time or long-time atomization treatment is met; the customized design of the medicine bottle is matched with the push rod to enhance the atomization pressure and improve the spraying effect of the device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical devices, in particular to a large-dose atomization device. BACKGROUND

[0002] For a long time, atomization devices or other aerosol inhalation devices for liquids have been known in the art, such devices being used in particular in medicine and therapy, they administer active ingredients in the form of an aerosol, i.e. in the form of small droplets embedded in a gas.

[0003] Patent application CN 120168792 A filed by the same applicant as the present application discloses an atomization device, which is configured as a single-dose administration mode, after completing one-time drug atomization delivery, the medicine bottle needs to be disassembled for filling. However, for patients who need continuous multiple sprays or want to maintain a certain atomization time, this device cannot meet the use requirements. On the other hand, market feedback found that the atomization effect of the original device is still not ideal, the main reason may be that the pressure acting on the liquid is insufficient, which causes the liquid to be unable to be fully atomized, affecting the use effect.

[0004] Based on the above problems, the present application provides a large-dose atomization device. SUMMARY

[0005] The purpose of the present application is to provide a large-dose atomization device, at least to solve the problem that the device is difficult to use continuously or maintain long-acting atomization, so as to improve the applicability and practicality of the device.

[0006] The purpose of the present application is achieved by the following technical scheme: a large-dose atomization device, comprising a barrel, a driving mechanism, a medicine bottle and an atomization assembly; The barrel comprises a first cavity capable of being opened; the driving mechanism is arranged in the barrel, the driving mechanism comprises a push rod extending into the first cavity; the medicine bottle is arranged in the first cavity and can continuously and quantitatively supply liquid, the medicine bottle comprises a pressure chamber and a liquid storage chamber which are in communication with each other; the atomization assembly comprises an atomization chip arranged at the front end of the pressure chamber and in communication therewith, the atomization chip is used for atomizing liquid; Wherein, the push rod is configured as a reciprocating linear moving piece capable of slidingly and sealingly cooperating with the pressure chamber, the push rod advances to pressurize and empty the substances in the pressure chamber, and at the moment when the push rod retreats to separate from the pressure chamber, the liquid in the liquid storage chamber is sucked.

[0007] In some optional schemes, the barrel comprises a holding part and an upper barrel part, the upper barrel part is detachably connected to the front end of the holding part and forms the first cavity with the holding part; The upper cylinder part is circumferentially spaced with a plurality of ribs for fixing the medicine bottle, and the front end of each rib is provided with a flange for limiting the medicine bottle.

[0008] In some alternatives, the front end and the side body of the upper cylinder part are respectively provided with an opening and an air inlet, and the inner wall of the upper cylinder part is provided with an air flow groove communicating with the opening and the air inlet.

[0009] In some alternatives, the medicine bottle is made of transparent hard material, and at least one side of the upper cylinder part is provided with a viewing window corresponding to the position of the liquid storage chamber.

[0010] In some alternatives, the cylinder body further comprises a lower cylinder part rotatably arranged at the rear end of the holding part and forming a second cavity with the holding part. The driving mechanism is arranged in the second cavity, and the driving mechanism is configured to be driven by manual rotation, wherein each rotation of 180° can switch the push rod between the forward and backward states.

[0011] In some alternatives, the driving mechanism further comprises: a rotary body, the front part of which is rotationally connected to the holding part, and the rear part of which is accommodated in the lower cylinder part and fixedly connected thereto; a pipe holder arranged in the rotary body and connected to the push rod, the pipe holder always rotates with the rotary body and can reciprocally linearly move along the axial direction thereof; a biasing spring arranged between the rear end of the pipe holder and the inner bottom of the lower cylinder part; a guide arranged in the holding part and capable of screwing with the pipe holder; an actuating member arranged at the front end of the rotary body and in contact with the rotary body; The driving mechanism is configured to have two states of loading and activation: In the loading state, the guide promotes the pipe holder to drive the push rod to retreat, until the actuating member eccentrically intersects with the rotary body, thereby limiting the pipe holder and compressing the biasing spring. In the activation state, the actuating member is coaxially distributed with the rotary body, and the biasing spring drives the push rod to advance through the pipe holder, until the pipe holder and the guide contact each other.

[0012] In some alternatives, the lower cylinder part is provided with symmetrically distributed driving fins on both sides. The driving fins are used to reduce the driving force for rotating the lower cylinder part, or the driving fins are used to increase the biasing force of the biasing spring on the push rod without changing the existing driving force.

[0013] In some alternatives, the outer wall of the rotary body is provided with guide ribs on both sides, the middle part and the rear end of the guide ribs are provided with a clamping groove and a first protruding rib respectively; The inner wall of the lower cylindrical part is provided with guide grooves on both sides, the middle part and the rear end of the guide grooves are provided with a clamping buckle and a second protruding rib respectively; The guide ribs and the guide grooves are in sliding fit, the clamping buckle and the clamping groove are in clamping fit, and the first protruding rib and the second protruding rib are in interference fit.

[0014] In some alternatives, the push rod is a metal rod, and the front end of the push rod is provided with a first piston; The outer periphery of the first piston is provided with at least two first sealing rings, and the first sealing rings are in interference sealing with the pressure chamber.

[0015] In some alternatives, the rear part of the liquid storage chamber is provided with a piston assembly, and the piston assembly comprises: A second piston, the outer periphery of the second piston is provided with at least two second sealing rings, and the second sealing rings are in interference sealing with the liquid storage chamber; A compression spring, arranged at the rear of the second piston; In the initial state, the piston assembly is compressed by the liquid in the liquid storage chamber, and can be stretched after each loading to push the liquid in the liquid storage chamber into the pressure chamber.

[0016] In some alternatives, the sum of the negative pressure suction force generated at the moment when the push rod retreats to separate from the pressure chamber and the elastic force of the compression spring is greater than the sum of the sealing interference force of the second piston with the push rod and the liquid storage chamber; The force applied by the driving mechanism on the push rod is greater than the sum of the interference sealing force of the first piston with the pressure chamber and the interference sealing force of the second piston with the push rod.

[0017] In some alternatives, the pressure chamber is in a tubular structure, the liquid storage chamber is in a cylindrical structure, and the cross-sectional area A1 of the pressure chamber is smaller than the cross-sectional area A2 of the liquid storage chamber.

[0018] In some alternatives, the ratio of the diameter of the cross-sectional area A1 of the pressure chamber to the diameter of the cross-sectional area A2 of the liquid storage chamber is 1:2-4.

[0019] In some alternatives, the medicine bottle can store at least 30ml of liquid, and the large-dose atomization device is configured to spray no more than 5ml at a time, and the spraying time is no more than 3s at a time.

[0020] In some alternatives, the atomization assembly and the medicine bottle form an integral structure, and the atomization particle size of the atomization chip is less than or equal to 0.01mm.

[0021] Compared with the prior art, the present application has at least the following advantages: 1. The medicine bottle can store a large dose of liquid and cooperate with the push rod to continuously spray a fixed amount, meeting the needs of multiple or long-term atomization treatment, and improving the applicability of the device.

[0022] 2. The customized design of the medicine bottle cooperates with the push rod to enhance the atomization pressure and improve the spraying effect of the device.

[0023] 3. The driving mechanism is simple and convenient to operate, and most of it is installed in a cavity that cannot be opened, which can be effectively protected and ensure the continuous and stable use of the driving mechanism.

[0024] 4. The driving fin can reduce the driving force of the lower cylinder part, achieving the purpose of saving labor; or without changing the existing driving force, the bias spring with larger bias force is adapted, thereby improving the pressure of the push rod on the pressurizing chamber. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective view of the large-dose atomization device of the present application.

[0026] Figure 2 is a cross-sectional structural view of the large-dose atomization device of the present application.

[0027] Figure 3 is a cross-sectional structural view of the medicine bottle.

[0028] Figure 4 is a cross-sectional structural view of the cylinder.

[0029] Figure 5 is an exploded structural view of the rotary body and the lower cylinder.

[0030] Figure 6 is a partial cross-sectional view of the large-dose atomization device of the present application.

[0031] Figure 7 is a perspective view of the driving mechanism.

[0032] Figure 8 is a cooperation view of the pipe frame and the guide.

[0033] Figure 9 is a structural view of the driving mechanism in the loaded state.

[0034] Figure 10 is a structural view of the driving mechanism in the excited state.

[0035] In the drawings: 1, barrel; 11, holding part; 111, support rib; 12, upper barrel part; 121, rib; 122, flange; 123, window; 124, opening; 125, air inlet; 126, air flow groove; 13, lower barrel part; 131, guide groove; 132, buckle; 133, second convex rib; 14, driving fin; 1a, first cavity; 1b, second cavity; 2, driving mechanism; 21, push rod; 22, rotating body; 221, guide rib; 222, clamping groove; 223, first convex rib; 224, matching part; 23, tube holder; 231, first helical surface; 24, biasing spring; 25, guide piece; 251, second helical surface; 26, actuating piece; 261, guide groove; 262, reset part; 3, medicine bottle; 31, pressure chamber; 32, liquid storage chamber; 33, base; 331, convex ring part; 4, atomization assembly; 41, atomization chip; 5, piston assembly; 51, second piston; 511, second sealing ring; 52, compression spring; 6, first piston; 61, first sealing ring; 7, dust cover. DETAILED DESCRIPTION

[0036] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any number of ways, and example implementations should not be construed as limited to what is presented herein; rather, examples presented herein should be understood to illustrate example implementations. Wherever possible, any aspects of example implementations can be used in any combination, and examples presented herein should not be construed as limited to only the combination presented in this description. Identical reference numerals have been used, where possible, to designate corresponding or like components that are common to the figures.

[0037] The words expressing position and direction described in the present application are described by taking the drawings as an example, but changes can also be made as needed, and the changes made are included in the protection scope of the present application.

[0038] Referring to Figures 1 to 4 As shown, the present application discloses a large-dose atomization device, which comprises a barrel 1, a driving mechanism 2, a medicine bottle 3, an atomization assembly 4, and a piston assembly 5.

[0039] Among them, the barrel 1 includes a first cavity 1a that can be opened, which is used for replaceable placement of the medicine bottle 3. In this application, the barrel 1 includes a holding part 11 and an upper barrel part 12 detachably connected to the front end thereof, and as an example, the holding part 11 and the upper barrel part 12 can be connected in a threaded manner and form the first cavity 1a.

[0040] In addition, the barrel 1 further comprises a second cavity 1b which is not openable, and the driving mechanism 2 is installed in the second cavity 1b of the barrel 1, and the driving mechanism 2 comprises a push rod 21 which extends into the first cavity 1a. In the present application, the barrel 1 further comprises a lower barrel portion 13 which is rotatably arranged at the rear end of the holding portion 11 and forms the second cavity 1b with the holding portion 11. The driving mechanism 2 is configured to be manually rotated, and each 180° rotation of the driving mechanism 2 can switch the push rod 21 between the forward and backward states, as will be described below.

[0041] The medicine bottle 3 is replaceably installed in the first cavity 1a and comprises a pressure chamber 31 and a liquid storage chamber 32 which are in communication with each other. In the present application, the pressure chamber 31 is in a tubular structure and can form a pump chamber structure with a variable volume in cooperation with the push rod 21. The liquid storage chamber 32 is in a cylindrical structure and is internally used for storing a large dose of liquid to meet the continuous and quantitative liquid supply requirements.

[0042] The atomization assembly 4 and the piston assembly 5 are arranged at the front end of the pressure chamber 31 and the rear portion of the liquid storage chamber 32, respectively, and the two assemblies can form an integral structure with the medicine bottle 3. In the present application, the piston assembly 5 comprises a second piston 51 and a compression spring 52 arranged behind the second piston 51, and in the initial state, the piston assembly 5 is compressed by the liquid in the liquid storage chamber 32 and can be stretched after each loading to push the liquid in the liquid storage chamber 32 into the pressure chamber 31. The atomization assembly 4 comprises an atomization chip 41 which is in communication with the pressure chamber 31, and the high-pressure liquid can form fine droplets after passing through the atomization chip 41 to achieve the atomization function.

[0043] In combination with Figs. 1 and 2, Figure 2 and Figure 3 As shown in the figures, the push rod 21 of the large-dose atomization device of the present application is configured as a reciprocating linear moving piece which penetrates the piston assembly 5 and can be in sliding sealing cooperation with the pressure chamber 31, and when the push rod 21 advances, it can pressurize and empty the substances, such as air or liquid, in the pressure chamber 31; and when the push rod 21 retreats to separate from the pressure chamber 31, it cooperates with the piston assembly 5 to suck the liquid in the liquid storage chamber 32.

[0044] Specifically, when the driving mechanism 2 controls the push rod 21 to advance, the push rod 21 extrudes the pump chamber, causing the substance in the pump chamber to be pressurized and then released outward through the atomization chip 41. When the driving mechanism 2 controls the push rod 21 to retreat, the volume of the pump chamber increases to form negative pressure (this process occurs instantaneously, and the gas entering the pressure chamber 31 from the atomization chip 41 can be ignored), and at the moment when the push rod 21 separates from the pressure chamber 31, the liquid in the liquid storage chamber 32 is sucked into the pressure chamber 31. Due to the decrease of the liquid in the liquid storage chamber 32, the decrease of the hydraulic pressure causes the compression spring 52 to push the second piston 51 to move forward, which helps to push the liquid into the pressure chamber 31 and ensures that the area of the pressure chamber 31 to the piston assembly 5 is always filled with liquid, preventing the occurrence of empty areas that affect the stability and accuracy of subsequent quantitative liquid supply.

[0045] As an example, the medicine bottle 3 of the large-dose atomization device of the present application can store at least 30 ml of liquid, and the device is configured to spray no more than 5 ml each time, and the duration of each spray is no more than 3 s. This design makes full use of the medicine in a single effective inhalation duration for animals or humans, can significantly reduce the loss of medicine, and meets the needs of continuous use or long-acting atomization.

[0046] Referring to Figure 3 As shown in the above large-dose atomization device, the cross-sectional area A1 of the pressure chamber 31 of the medicine bottle 3 is required to be smaller than the cross-sectional area A2 of the liquid storage chamber 32, which improves the liquid pressure in the pressure chamber 31 on the basis of constant pressure of the push rod 21, thereby improving the atomization effect at the atomization assembly 4.

[0047] In some embodiments, the ratio of the diameter of the cross-sectional area A1 of the pressure chamber 31 to the diameter of the cross-sectional area A2 of the liquid storage chamber 32 is 1:2-4, and within this range, the liquid storage capacity and pressurization effect of the medicine bottle 3 are balanced. As preferred, the ratio of the diameter of the cross-sectional area A1 of the pressure chamber 31 to the diameter of the cross-sectional area A2 of the liquid storage chamber 32 in the present application is 1:3.

[0048] In some embodiments, the push rod 21 is a metal rod, such as a stainless steel rod, to prevent deformation, fracture, and other problems of the push rod 21 during long-term use. In addition, as Figure 7 As shown, the front end of the push rod 21 is provided with the first piston 6, which matches the pressure chamber 31 and is provided with at least two first sealing rings 61 on the outer periphery to enhance sealing, and the first sealing rings 61 are movably matched with the pressure chamber 31. In addition, the outer periphery of the second piston 51 is also provided with at least two second sealing rings 511 to enhance sealing, and the second sealing rings 511 are movably matched with the liquid storage chamber 32.

[0049] To ensure the smooth progress of the device loading and firing process, in this application, the negative pressure suction force generated at the moment when the push rod 21 retreats to separate from the pressure chamber 31 plus the elastic force of the compression spring 52 needs to be greater than the sum of the sealing interference force of the second piston 51 with the push rod 21 and the liquid storage chamber 32. The force exerted by the drive mechanism 2 on the push rod 21 needs to be greater than the sum of the interference sealing force of the first piston 6 with the pressure chamber 31 and the interference sealing force of the second piston 51 with the push rod 21.

[0050] In some embodiments, the rear end of the medicine bottle 3 is provided with an opening to facilitate the loading of the piston assembly 5, and a base 33 is clamped at the opening. The base 33 includes a convex ring part 331 facing the pressure chamber 31, which is used to support the compression spring 52, and a through hole in the middle for the push rod 21 to pass through, thereby stably guiding the movement of the push rod 21.

[0051] In some embodiments, the atomization assembly 4 is composed of filter, atomization chip 41, clamping / fixed parts, etc. Among them, the filter is located behind the atomization chip 41, which is used to intercept the impurity particles with a particle size of 0.05 mm -0.1 mm in the liquid, reducing the damage to the atomization chip 41. The inside of the atomization chip 41 has a multi-stage filtering microstructure (not shown), through which the high-pressure liquid forms fine droplets, and the atomized particle size is usually less than or equal to 0.01 mm, so as to be better absorbed by the human body or animals. The clamping / fixed part is located at the periphery of the atomization chip 41, which is used to protect and fix the atomization chip 41, and at the same time connects it with the medicine bottle 3, for example, the clamping / fixed part can be welded or screwed with the medicine bottle 3.

[0052] Referring to Figure 2 and Figure 4 As shown in the drawings, in some embodiments, a plurality of rib strips 121 for fixing the medicine bottle 3 are arranged at the periphery of the upper cylinder part 12, which are used to interfere with the bottle body to achieve the purpose of fixation. And the front end of each rib strip 121 is provided with a flange 122 for limiting the position of the medicine bottle 3, and the stepped structure can reliably limit the position of the medicine bottle 3, ensuring the accuracy of the position of the medicine bottle 3, preventing the change of the pump suction / pumping stroke caused by the assembly tolerance from causing the fluctuation of the spray dose.

[0053] In addition, the front end of the upper cylinder part 12 and the side body are respectively provided with an opening 124 and an air inlet 125, and the inner wall of the upper cylinder part 12 is provided with an air flow groove 126 communicating the opening 124 and the air inlet 125. When the device is in the excitation state, external air is sucked into the air inlet 125 and flows to the opening 124 via the air flow groove 126, and when the air flow contacts the fine liquid droplets released by the atomization chip 41, the air flow can break the fine liquid droplets again and increase the delivery stroke, so as to enter the deep part of the respiratory tract and improve the drug absorption effect. It should be noted that the long and narrow air flow groove 126 can make the air be squeezed to accelerate, thereby providing the force for breaking and assisting the movement of the fine liquid droplets; on the other hand, the air flow groove 126 also solves the problem that the air flow passage is blocked due to the assembly tolerance between the front section of the medicine bottle 3 and the inner wall of the upper cylinder part 12, thereby significantly improving the aerodynamic performance of the device.

[0054] Referring to Figure 2 As shown in the figure, in some embodiments, the medicine bottle 3 is made of transparent hard material, such as PVC, PP, etc., and at least one side of the upper cylinder part 12 is provided with a viewing window 123 corresponding to the position of the liquid storage chamber 32, so that the user can observe the inside of the medicine bottle 3 in real time, which is convenient for use.

[0055] Referring to Figure 2 and Figures 5 to 10 As shown in the figure, in some embodiments, the driving mechanism 2 further includes a rotary body 22, a tube holder 23, a biasing spring 24, a guide 25 and an actuating piece 26.

[0056] The front part of the rotary body 22 is rotationally connected to the holding part 11, and the rear part is accommodated in and fixedly connected to the lower cylinder part 13; the tube holder 23 is arranged in the rotary body 22 and connected to the push rod 21, and the tube holder 23 always rotates with the rotary body 22 and can linearly move reciprocatingly along the axial direction thereof; the biasing spring 24 is arranged between the rear end of the tube holder 23 and the inner bottom of the lower cylinder part 13; the guide 25 is arranged in the holding part 11 and can be screw-guided with the tube holder 23; and the actuating piece 26 is arranged at the front end of the rotary body 22 and in contact with the rotary body 22. The driving mechanism 2 is configured to have two states of loading and excitation: in the loading state, the guide 25 drives the tube holder 23 to drive the push rod 21 to retreat until the actuating piece 26 eccentrically intersects with the rotary body 22, thereby limiting the tube holder 23 and compressing the biasing spring 24; and in the excitation state, the actuating piece 26 is coaxially distributed with the rotary body 22, and the biasing spring 24 drives the push rod 21 to advance through the tube holder 23 until the tube holder 23 and the guide 25 contact each other.

[0057] Specifically, a sliding block groove structure is arranged between the outer periphery of the tube holder 23 and the inner wall of the rotary body 22, which makes the tube holder 23 always rotate with the rotary body 22 and does not affect the independent linear reciprocating movement of the tube holder 23.

[0058] Specifically, the inner side of the pipe frame 23 is provided with a first helical surface 231, and the outer peripheral surface of the guide piece 25 is provided with a second helical surface 251 corresponding to the first helical surface 231. The first helical surface 231 can be in close contact with the second helical surface 251 under the action of the biasing spring 24, that is, the device enters the activated state and after the atomization is completed, the first helical surface 231 is in close contact with the second helical surface 251, at this time, the rotary body 22 is rotated by 180°, and the first helical surface 231 can drive the pipe frame 23 to retreat and compress the biasing spring 24 under the guidance of the second helical surface 251, until the device is switched to the loading state again, waiting for the next use. The ideal arrangement is that the first helical surface 231 is symmetric about the center of the pipe frame 23, and the second helical surface 251 is symmetric about the center of the guide piece 25, so as to ensure uniform stress and improve the stability of the retreat movement of the pipe frame 23.

[0059] Specifically, a plurality of support ribs 111 are circumferentially spaced apart and arranged in the holding portion 11 close to the upper barrel portion 12, the actuating piece 26 is interposed between the support ribs 111 and the rotary body 22 (see Figure 2 ), and can only move radially forward and backward, and the end of the front side of the actuating piece 26 away from the pressing position is provided with a guide groove 261, which is used for sliding fit with one of the support ribs 111 (not shown in the cross-sectional view) opposite the pressing position, so as to guide and limit the movement path of the actuating piece 26.

[0060] Further, the rear side of the actuating piece 26 is provided with two reset portions 262, which are symmetrically distributed by 180° and each has an arc-shaped first guide surface, and the front end of the rotary body 22 is provided with two cooperating portions 224, which are symmetrically distributed by 180° and each has an arc-shaped second guide surface. During the process of switching the device from the activated state to the loading state by rotating the rotary body 22, the cooperating portion 224 can gradually contact the reset portion 262, so that the first guide surface collides with the second guide surface. Under the action of the arc surface, the actuating piece 26 can move radially towards the pressing position direction, until the rotary body 22 forms an eccentric intersection state, and at the same time, the front end of the pipe frame 23 is pressed and limited in the rotary body 22. At this time, the device remains in the loading state, waiting for the next activation.

[0061] As shown in FIGS. 6 and Figure 7 In some embodiments, the two sides of the lower barrel portion 13 are provided with symmetrically distributed drive fins 14, which can be integrally formed. The present application increases the driving force arm through the drive fins 14, and under the premise of not changing the existing biasing spring 24, the arrangement of the drive fins 14 effectively reduces the driving force of rotating the lower barrel portion 13, achieving the purpose of saving labor. Alternatively, under the premise of not changing the existing driving force, a biasing spring 24 with greater biasing force is provided, thereby improving the pressure of the push rod 21 on the pressurizing chamber.

[0062] Further, the surface of the lower cylinder part 13 and / or the driving fin 14 is provided with anti-skid lines to increase the friction with the hand, facilitating the screwing operation.

[0063] Referring to Figure 5 and Figure 6 As shown in FIG. 7, in some embodiments, the outer wall of the rotary body 22 is provided with guiding ribs 221 on both sides, the middle and rear end of the guiding ribs 221 are respectively provided with a clamping groove 222 and a first protruding rib 223; the inner wall of the lower cylinder part 13 is provided with guiding grooves 131 on both sides, the middle and rear end of the guiding grooves 131 are respectively provided with a clamping buckle 132 and a second protruding rib 133. During assembly, the guiding ribs 221 and the guiding grooves 131 are slidably matched to guide, until the clamping buckle 132 and the clamping groove 222 are clamped and fixed, and the first protruding rib 223 and the second protruding rib 133 are interference-fitted, so that the lower cylinder part 13 is assembled on the rotary body 22 and cannot be detached, ensuring the sealing of the second cavity 1b and being beneficial to the protection of the driving mechanism 2.

[0064] Referring to Figure 1 As shown in FIG. 8, in some embodiments, the front end of the upper cylinder part 12 is provided with a dust cover 7 for protecting the atomization assembly 4 from damage or pollution.

[0065] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments without departing from the principles and purposes of the present application within the scope of the present application. All these changes should be within the protection scope of the present application.

Claims

1. A high-dose nebulizer, characterized in that, include: The cylindrical body (1) includes a first cavity (1a) that can be opened; A drive mechanism (2) is disposed inside the cylinder (1), the drive mechanism (2) including a push rod (21) extending into the first cavity (1a). The medicine bottle (3) is set in the first cavity (1a) and can continuously supply liquid in a quantitative manner. The medicine bottle (3) includes a pressure chamber (31) and a liquid storage chamber (32) that are connected front and back. The atomizing component (4) includes an atomizing chip (41) disposed at the front end of and in communication with the pressure chamber (31), the atomizing chip (41) being used to atomize liquid; The push rod (21) is configured as a reciprocating linear moving part that can slide and seal with the pressure chamber (31). When the push rod (21) moves forward, it can pressurize and empty the substance in the pressure chamber (31), and when it moves backward and separates from the pressure chamber (31), it can draw in the liquid in the reservoir (32).

2. The high-dose nebulizer according to claim 1, characterized in that, The cylinder (1) includes a gripping part (11) and an upper cylinder part (12), the upper cylinder part (12) being detachably connected to the front end of the gripping part (11) and forming the first cavity (1a) therewith. The upper cylinder (12) is provided with a plurality of ribs (121) spaced apart around the periphery for fixing the medicine bottle (3), and each rib (121) has a flange (122) at the front end for limiting the position of the medicine bottle (3).

3. The high-dose nebulizer according to claim 2, characterized in that, The upper cylinder (12) has an opening (124) and an air inlet (125) at its front end and side respectively, and an airflow groove (126) connecting the opening (124) and the air inlet (125) is provided on the inner wall of the upper cylinder (12).

4. The high-dose nebulization device according to claim 2, characterized in that, The medicine bottle (3) is made of a transparent hard material, and the upper cylinder (12) has a viewing window (123) on at least one side corresponding to the position of the liquid storage chamber (32).

5. The high-dose nebulizer according to claim 2, characterized in that, The cylinder (1) also includes a lower cylinder (13), which is rotatably disposed at the rear end of the grip (11) and forms a second cavity (1b) therewith. The drive mechanism (2) is disposed in the second cavity (1b) and is configured to be driven by manual rotation, wherein the push rod (21) can switch back and forth between forward and backward states every 180° of rotation.

6. The high-dose nebulizer according to claim 5, characterized in that, The drive mechanism (2) further includes: The rotating body (22) is rotatably connected to the gripping part (11) at the front and is housed and fixedly connected to the lower cylinder part (13) at the rear. The tube frame (23) is set inside the rotating body (22) and connected to the push rod (21). The tube frame (23) always follows the rotation of the rotating body (22) and can reciprocate linearly along its axial direction. An offset spring (24) is disposed between the rear end of the tube frame (23) and the inner bottom of the lower cylinder (13); The guide (25) is disposed in the grip (11) and can be helically guided with the tube rack (23); An actuator (26) is disposed at the front end of the rotating body (22) and contacts and engages with it; The drive mechanism (2) is configured to have two states: loading and firing. In the loaded state, the guide (25) causes the tube rack (23) to drive the push rod (21) backward until the actuator (26) intersects the rotating body (22) eccentrically, thereby restricting the tube rack (23) and compressing the bias spring (24). In the activated state, the actuator (26) and the rotating body (22) are coaxially distributed, and the bias spring (24) drives the push rod (21) forward through the tube frame (23) until the tube frame (23) and the guide (25) come into contact with each other.

7. The high-dose nebulizer according to claim 6, characterized in that, The lower cylinder (13) is provided with symmetrically distributed drive wings (14) on both sides. The drive wing (14) is used to reduce the driving force for rotating the lower cylinder (13), or the drive wing (14) is used to increase the biasing force of the bias spring (24) on the push rod (21) without changing the existing driving force.

8. The high-dose nebulizer according to claim 6, characterized in that, The outer wall of the rotating body (22) is provided with guide ribs (221) on both sides, and the middle and rear ends of the guide ribs (221) are respectively provided with slots (222) and first protruding ribs (223). The inner wall of the lower cylinder (13) is provided with guide grooves (131) on both sides, and the middle and rear ends of the guide grooves (131) are respectively provided with buckles (132) and second ribs (133). The guide rib (221) slides with the guide groove (131), the buckle (132) engages with the groove (222) and is fixed, and the first rib (223) and the second rib (133) interfere with each other.

9. The high-dose nebulizer according to claim 1, characterized in that, The push rod (21) is a metal rod with a first piston (6) at its front end. The outer periphery of the first piston (6) is provided with at least two first sealing rings (61), which interfere with the sealing of the pressure chamber (31).

10. The high-dose nebulizer according to claim 1, characterized in that, A piston assembly (5) is provided at the rear of the liquid storage chamber (32), the piston assembly (5) comprising: The second piston (51) has at least two second sealing rings (511) on its outer periphery, and the second sealing rings (511) interfere with the liquid storage chamber (32) to seal. A compression spring (52) is disposed behind the second piston (51); In the initial state, the piston assembly (5) is compressed by the liquid in the reservoir (32) and can extend after each loading, thereby pushing the liquid in the reservoir (32) into the pressure chamber (31).

11. The high-dose nebulizer according to claim 10, characterized in that, The sum of the negative pressure suction generated when the push rod (21) retracts to separate from the pressure chamber (31) and the elastic force of the compression spring (52) is greater than the sum of the sealing interference forces between the second piston (51), the push rod (21), and the liquid storage chamber (32); The force exerted by the drive mechanism (2) on the push rod (21) is greater than the sum of the interference sealing force between the first piston (6) and the pressure chamber (31) plus the interference sealing force between the second piston (51) and the push rod (21).

12. The high-dose nebulizer according to claim 1, characterized in that, The pressure chamber (31) is a tubular structure, the liquid storage chamber (32) is a cylindrical structure, and the cross-section A1 of the pressure chamber (31) is smaller than the cross-section A2 of the liquid storage chamber (32).

13. The high-dose nebulization device according to claim 12, characterized in that, The ratio of the diameter of the cross-section A1 of the pressure chamber (31) to the diameter of the cross-section A2 of the liquid storage chamber (32) is 1:2-4.

14. The high-dose nebulizer according to claim 1, characterized in that, The medicine bottle (3) is capable of storing at least 30 ml of liquid, and the high-dose nebulizer is configured to spray no more than 5 ml per spray and for no more than 3 seconds per spray.

15. The high-dose nebulizer according to claim 1, characterized in that, The atomizing component (4) and the medicine bottle (3) form an integrated structure, and the atomizing particle size of the atomizing chip (41) is less than or equal to 0.01 mm.

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