Quantitative administration device for medical aerosol

Abstract

The invention provides a quantitative administration device for medical aerosol, and belongs to the technical field of medical instruments. Comprising a mask, a mist storage tank is in threaded connection with the mask, a positioning frame is inserted into one end of the mist storage tank, and an inhaler is inserted into one end of the positioning frame; the auxiliary mechanism is used for assisting a user in controlling the inhaler, and the auxiliary mechanism is connected with the mist storage tank and the positioning frame. By arranging the auxiliary mechanism, a user can be effectively assisted in installing and using the inhaler, the accuracy of medicine inhaling by the user each time can be improved while the operation burden of the user is relieved, the user can complete operation on the device only with one hand in the actual operation process, and the operation efficiency is improved. And the amount of the medicine sprayed out by the inhaler each time can be controlled more accurately, so that the practicability and the operation convenience of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly to a quantitative dosing device for a medical aerosol. Background Art

[0002] During the treatment of chronic obstructive pulmonary disease, inhaled medications can not only effectively control symptoms but also significantly improve the overall health and quality of life of patients. Especially for elderly patients, they face some special challenges when using inhalers.

[0003] Since elderly patients often suffer from symptoms such as cognitive decline, physical function decline, and visual and auditory impairments, they may have difficulty understanding the instructions for using inhalers and accurately mastering the usage techniques. The hand coordination and strength of elderly patients may also weaken, affecting their ability to correctly operate inhalers. In response to the above problems, a quantitative dosing device for an aerosol with a built-in mask has emerged on the market. This device mainly consists of an inhaler, a mask, and a holding chamber. The medication sprayed from the inhaler first enters the holding chamber and then is inhaled into the patient's body through the mask. This device can solve the problem that patients cannot hold their breath after medication, resulting in the loss of medication with exhalation and thus affecting the inhaled dose.

[0004] However, the above device requires the patient to work with both hands during use. The patient needs to hold the holding chamber with one hand and press the control inhaler with the other hand, which undoubtedly increases the difficulty of operation and brings operational troubles to elderly patients. Therefore, it is particularly important to provide an easy-to-operate inhaler assistance device for elderly patients. The present invention provides a quantitative dosing device for a medical aerosol to meet this need. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a quantitative dosing device for a medical aerosol. By setting an auxiliary mechanism, it can effectively assist the user in installing and using the inhaler, reduce the operation burden of the user, and improve the accuracy of the medication inhaled by the user each time. During the actual operation process, the user can complete the operation of the device with only one hand, and the amount of medication sprayed by the inhaler each time can be controlled more precisely, improving the practicality and operational convenience of the device. Through the above settings, the problem of difficult operation during the use of the current dosing device can be solved.

[0006] To solve the above technical problem, the present invention provides the following technical solutions: A metered-dose delivery device for a medical aerosol, comprising a face mask, a holding chamber screwed onto the face mask, a positioning bracket inserted into one end of the holding chamber, and an inhaler inserted into one end of the positioning bracket; an auxiliary mechanism for assisting a user in operating the inhaler, the auxiliary mechanism being connected to the holding chamber and the positioning bracket respectively; the auxiliary mechanism includes a mounting bracket, a partition plate, and a sealing plate, the mounting bracket being fixedly connected to one end of the positioning bracket, the partition plate being fixedly connected to the inner wall of the positioning bracket, and the sealing plate being fixedly connected to the inner wall of the holding chamber.

[0007] Optionally, the positioning bracket is divided into an inner and an outer circumference, a sealing ring is fixedly connected to the inner circumference of the positioning bracket, and the partition plate is fixed to the inner circumference of the positioning bracket.

[0008] Optionally, the outer circumference of the positioning bracket fits against the outer wall of the holding chamber, the inner circumference of the positioning bracket fits against the inner wall of the holding chamber, and a lightening groove is provided on the outer circumference of the positioning bracket.

[0009] Optionally, a first duckbill valve is fixedly connected to one end of the partition plate close to the inhaler, a plug is fixedly connected to the other end of the partition plate, and a socket that matches the position and size of the plug is provided on the sealing plate.

[0010] Optionally, a spiral sheet is fixedly connected to one side of the sealing plate close to the partition plate, the spiral sheet is a sheet structure with a spiral profile, a third duckbill valve is fixedly connected to the top of the sealing plate on the same side as the spiral sheet, and a second duckbill valve is fixedly connected to the other side of the sealing plate.

[0011] Optionally, a positioning cylinder is fixedly connected to one end of the positioning bracket close to the inhaler, a positioning groove is provided in the positioning cylinder, and the end of the positioning cylinder away from the positioning bracket is provided with an inward inclination.

[0012] Optionally, a side plate is fixedly connected to one side of the mounting bracket, a top plate is fixedly connected to the top of the side plate, and a first pressing plate and a second pressing plate extend from one end of the top plate.

[0013] Optionally, a downward curvature is provided in the middle of both the first pressing plate and the second pressing plate, the ends of the first pressing plate and the second pressing plate are in contact with the outer wall of the positioning bracket, and the height of the upward arch of the first pressing plate is less than the height of the upward arch of the second pressing plate.

[0014] Optionally, a first weakening groove is provided at the connection position between the side plate and the mounting bracket, and a second weakening groove is provided at the connection position between the top plate and the first pressing plate and the second pressing plate.

[0015] Optionally, the contour of the mounting bracket is adapted to the contour of the inhaler. The side plate abuts against the outer wall of the inhaler, and the top plate fits against the top of the inhaler. The mounting bracket, the side plate, the top plate, the first pressing plate, and the second pressing plate are integrally manufactured structures.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: In the above solution, by setting the auxiliary mechanism, it can effectively assist the user in installing and using the inhaler, reduce the operation burden of the user, and improve the accuracy of the drug inhaled by the user each time. In the actual operation process, the user can complete the operation of the device with only one hand, and the amount of drug ejected by the inhaler each time can be controlled more precisely, improving the practicability of the device and the convenience of operation.

[0017] By setting the positioning cylinder, the inhaler is inserted and fixed on the positioning frame through the positioning cylinder. The size of the positioning cylinder is consistent with the size of the inhaler, and the end of the positioning cylinder is provided with an inwardly inclined arc. The setting of this arc enables the user to insert the inhaler into the positioning cylinder. During the process, the inwardly inclined arc can be used for auxiliary guidance, and the inhaler can be accurately inserted into the positioning cylinder, improving the convenience of inserting the inhaler. In addition, a positioning groove is opened in the positioning cylinder, and the contour of the positioning groove is adapted to the outer contour of the inhaler. The setting of the positioning groove can position the inhaler, thereby improving the stability after the inhaler is inserted.

[0018] By setting the mounting bracket, not only can the fixing effect of the inhaler be achieved, but also when the inhaler is fixed, the user does not need to hold the inhaler by hand, thereby improving the convenience of operating the device. Moreover, when the user holds the holding chamber and presses the first pressing plate and the second pressing plate extending from the top plate with fingers, the effect of ejecting the drug in the inhaler is achieved. The heights of the first pressing plate and the second pressing plate are different, so the user can control the amount of drug ejected by the inhaler by pressing different pressing plates. The setting of the above structure not only improves the arrangement efficiency and stability of the inhaler, but also makes it more convenient and efficient for the user to operate the inhaler, thereby improving the practicability of the device.

[0019] By setting a partition plate, the internal space of the medicine storage canister is divided into two parts. The medicine ejected from the inhaler will first diffuse into the medicine storage canister and into the cavity of the medicine storage canister at the bottom of the partition plate. When the user wears the mask and inhales air, the medicine in the medicine storage canister will enter the mask from the position of the second duckbill valve. When the user exhales, the medicine in the mask and the medicine exhaled from the patient's mouth and nose will accumulate in the mask. When the air pressure in the mask is large enough, the third duckbill valve will be opened, and at this time, the medicine in the mask will enter the cavity of the medicine storage canister at the top of the partition plate. The user repeatedly inhales air. When the air pressure in the cavity of the medicine storage canister at the top of the partition plate is large enough, the first duckbill valve will be opened, and at this time, the medicine in the cavity of the medicine storage canister at the top of the partition plate will enter the cavity of the medicine storage canister at the bottom of the partition plate. By repeating this cycle, not only can the waste of medicine be prevented, but also the air pressure in the mask will not be too large to affect the normal breathing of the user. Brief Description of the Drawings

[0020] The drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the specification, are further used to explain the principles of the present invention and enable those skilled in the relevant art to implement and use the present invention.

[0021] Figure 1 It is a schematic perspective view of the first angle of the cooperation between the metered-dose device for medical aerosol and the human model; Figure 2 It is a schematic perspective view of the second angle of the cooperation between the metered-dose device for medical aerosol and the human model; Figure 3 It is a schematic perspective view of the metered-dose device for medical aerosol; Figure 4 It is a schematic enlarged perspective view of the cooperation between the medicine storage canister and the auxiliary mechanism; Figure 5 It is a schematic cross-sectional perspective view of the cooperation between the medicine storage canister and the auxiliary mechanism; Figure 6 For Figure 5 The enlarged schematic perspective view at A in Figure 7 For Figure 5 The enlarged schematic perspective view at B in Figure 8 It is a schematic cross-sectional perspective view of the first angle of the cooperation between the medicine storage canister and the positioning frame; Figure 9 It is a schematic cross-sectional perspective view of the second angle of the cooperation between the medicine storage canister and the positioning frame; Figure 10 It is a schematic enlarged perspective view of the cooperation between the positioning frame and the mounting frame; Figure 11 It is a schematic enlarged perspective view of the cooperation between the mounting frame and the aerosol; Figure 12 Schematic enlarged three-dimensional structure diagram of the mounting bracket.

[0022] Reference numerals: 1. Mask; 2. Nebulizer; 3. Positioning bracket; 301. Positioning cylinder; 302. Positioning groove; 303. Sealing ring; 4. Mounting bracket; 401. Side plate; 402. Top plate; 403. First pressing plate; 404. Second pressing plate; 405. First weakening groove; 406. Second weakening groove; 5. Inhaler; 6. Partition plate; 601. First duckbill valve; 602. Plug; 7. Sealing plate; 701. Spiral piece; 702. Second duckbill valve; 703. Third duckbill valve.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device, and environment. According to specific needs, those of ordinary skill in the art can adjust or modify these devices and environments. Detailed Description of the Invention

[0024] The following describes in detail a quantitative drug delivery device for a medical aerosol provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the accompanying drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0025] It should be noted that in the specification, references to "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment includes such specific features, structures, or characteristics. Additionally, when combining embodiments to describe specific features, structures, or characteristics, implementing such features, structures, or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0026] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or can be used to describe a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but rather, at least in part depending on the context, can allow for the existence of other factors that may not be explicitly described.

[0027] It will be understood that the meanings of "on", "above", and "over" in the present invention should be construed in the broadest manner, such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "above" or "over" not only means "above" or "over" something, but may also include the meaning of being "above" or "over" something with no intervening features or layers therebetween.

[0028] In addition, spatial relative terms such as "under", "below", "lower", "above", "upper", etc. may be used herein for convenience of description to describe the relationship of one element or feature to another or other elements or features, as shown in the drawings. The spatial relative terms are intended to cover different orientations in the use or operation of the device in addition to the orientation depicted in the drawings. The device may be oriented in other ways, and the spatial relative descriptive terms used herein may be similarly interpreted accordingly.

[0029] As Figures 1 to 3 shown, an embodiment of the present invention provides a metered-dose delivery device for a medical aerosol, including a face mask 1, a holding chamber 2 screwed onto the face mask 1, a positioning bracket 3 inserted at one end of the holding chamber 2, and an inhaler 5 inserted at one end of the positioning bracket 3; an auxiliary mechanism for assisting a user in operating the inhaler 5, the auxiliary mechanism being connected to the holding chamber 2 and the positioning bracket 3 respectively; the auxiliary mechanism includes a mounting bracket 4, a partition 6, and a sealing plate 7, the mounting bracket 4 being fixedly connected to one end of the positioning bracket 3, the partition 6 being fixedly connected to the inner wall of the positioning bracket 3, and the sealing plate 7 being fixedly connected to the inner wall of the holding chamber 2. Compared with the prior art, by providing the auxiliary mechanism in this application, it can effectively assist the user in installing and using the inhaler 5, improve the accuracy of the drug inhaled by the user each time while reducing the operation burden of the user, and in the actual operation process, the user can complete the operation of the device with only one hand, and the amount of drug ejected by the inhaler 5 each time can be controlled more precisely, improving the practicality of the device and the convenience of operation.

[0030] As an implementation manner in this embodiment, as Figures 3 to 9As shown, the positioning frame 3 is divided into two inner and outer circumferences. A sealing ring 303 is fixedly connected to the inner circumference of the positioning frame 3. The outer circumference of the positioning frame 3 fits against the outer wall of the medicine storage tank 2, and the inner circumference of the positioning frame 3 fits against the inner wall of the medicine storage tank 2. Lightening grooves are provided on the outer circumference of the positioning frame 3. One end of the positioning frame 3 close to the inhaler 5 is fixedly connected to a positioning cylinder 301. A positioning groove 302 is provided in the positioning cylinder 301. One end of the positioning cylinder 301 away from the positioning frame 3 is provided with an inwardly inclined arc. One end of the positioning frame 3 is inserted into the medicine storage tank 2. The positioning frame 3 is divided into two layers of inner and outer circumferential plates. The plate on the inner circumference is inserted into the inner wall of the medicine storage tank 2 and is fixedly sealed by the sealing ring 303 to improve the firmness and sealing performance between the positioning frame 3 and the medicine storage tank 2. The plate on the outer circumference is sleeved on the outer wall of the medicine storage tank 2. Sleeving the positioning frame 3 on the outer wall of the medicine storage tank 2 can protect the medicine storage tank 2, thereby improving the safety during the use of the medicine storage tank 2 and preventing collision and damage during splicing and carrying.

[0031] The inhaler 5 is inserted and fixed on the positioning frame 3 through the positioning cylinder 301. A through hole corresponding to the medicine outlet position of the inhaler 5 is provided on the positioning frame 3. The medicine ejected from the inhaler 5 will pass through the through hole and enter the medicine storage tank 2. The size of the positioning cylinder 301 matches the size of the inhaler 5, and the end of the positioning cylinder 301 is provided with an inwardly inclined arc. The setting of this arc enables the user to be assisted by the inwardly inclined arc during the process of inserting the inhaler 5 into the positioning cylinder 301 and allows the inhaler 5 to be accurately inserted into the positioning cylinder 301, improving the convenience of inserting the inhaler 5. In addition, a positioning groove 302 is provided in the positioning cylinder 301. The contour of the positioning groove 302 matches the outer contour of the inhaler 5. The setting of the positioning groove 302 can position the inhaler 5, thereby improving the stability after the inhaler 5 is inserted.

[0032] In this embodiment, as Figures 1 to 5 and Figures 10 to 12As shown, one side of the mounting frame 4 is fixedly connected to a side plate 401, and the top of the side plate 401 is fixedly connected to a top plate 402, and a first pressing plate 403 and a second pressing plate 404 are extended from one end of the top plate 402, and a downwardly curved arc is arranged in the middle of the first pressing plate 403 and the second pressing plate 404, and the ends of the first pressing plate 403 and the second pressing plate 404 are both in contact with the outer wall of the positioning frame 3, and the height of the first pressing plate 403 arching upward is less than the height of the second pressing plate 404 arching upward, and the connection between the side plate 401 and the mounting frame 4 A first weakened groove 405 is provided at the connection position, a second weakened groove 406 is provided at the connection position between the top plate 402 and the first pressing plate 403 and the second pressing plate 404, the contour of the mounting frame 4 is adapted to the contour of the inhaler 5, the side plate 401 abuts against the outer wall of the inhaler 5, the top plate 402 fits on the top of the inhaler 5, the mounting frame 4, the side plate 401, the top plate 402, the first pressing plate 403 and the second pressing plate 404 are an integrally manufactured structure, the mounting frame 4 is integrally mounted on one end of the positioning frame 3 close to the inhaler 5, the mounting frame 4 The overall profile of is consistent with the profile of the inhaler 5, the bottom of the side panel 401 is connected to the mounting frame 4, and the rest of the parts are non-contacting with the mounting frame 4, and a first weakened groove 405 is provided at the connecting position of the side panel 401 and the mounting frame 4, so that the side panel 401 can be broken away from the mounting frame 4, and when the user breaks the side panel 401 outward, the top panel 402 will also be broken away along with the side panel 401, at this time, the top of the mounting frame 4 is no longer blocked by the top panel 402, and the user can first insert the inhaler 5 into the mounting frame 4, and then Then fix the inhaler 5 in the positioning tube 301. When the inhaler 5 is inserted, the side plate 401 can be bent back to the initial position. After the side plate 401 is bent back, it will contact the outer wall of the inhaler 5, and the top plate 402 will fit on the top of the inhaler 5. At this time, the mounting frame 4, the side plate 401 and the top plate 402 will wrap and fix the inhaler 5. This arrangement makes it unnecessary for people to manually hold the inhaler 5 after installation. Moreover, under the limiting effect of the mounting frame 4 and the side plate 401, the inhaler 5 has good stability and will not fall off.

[0033] Furthermore, one end of the top plate 402 extends out the first pressing plate 403 and the second pressing plate 404. Both the first pressing plate 403 and the second pressing plate 404 have an upwardly arched height. Such a setting enables the user to drive the top plate 402 to move downward by pressing down the first pressing plate 403 or the second pressing plate 404. During the process of the downward displacement of the top plate 402, the inhaler 5 will be pressed, and at this time, the drug can be ejected from the inhaler 5. Since the first pressing plate 403 and the second pressing plate 404 are separated in structural settings, when the user presses the first pressing plate 403, the first pressing plate 403 will synchronously drive the top plate 402 and the second pressing plate 404 to generate displacement. However, at this time, the second pressing plate 404 will not bring a pressing effect on the top plate 402. Similarly, during the process of pressing the second pressing plate 404, it will not be affected by the structure of the first pressing plate 403. Since the upwardly arched height of the first pressing plate 403 is less than that of the second pressing plate 404, the total movement stroke lengths of the first pressing plate 403 and the second pressing plate 404 are different. The user can selectively press the first pressing plate 403 or the second pressing plate 404 to achieve the displacement amount of the downward movement of the top plate 402, thereby controlling the amount of drug ejected from the inhaler 5.

[0034] Furthermore, a second weakening groove 406 is provided at the connection positions of the top plate 402 with the first pressing plate 403 and the second pressing plate 404. The setting of the second weakening groove 406 makes it easier for the connection positions of the top plate 402 with the first pressing plate 403 and the second pressing plate 404 to deform, so that it is easier for the user to bend the connection positions of the top plate 402 with the first pressing plate 403 and the second pressing plate 404. Such a setting can, on the one hand, facilitate the user to bend the side plate 401 and the top plate 402 to open the top of the mounting frame 4, so as to put the inhaler 5 in or take it out. On the other hand, when the user presses the first pressing plate 403 and the second pressing plate 404, the top plate 402 is more easily driven to move downward, improving the operation convenience. In addition, the mounting frame 4, the side plate 401, the top plate 402, the first pressing plate 403 and the second pressing plate 404 are of an integrally manufactured structure. When the user manufactures the mounting frame 4 and other structures, they can be integrally formed, reducing the processing technology and being easier to manufacture. It is worth mentioning that both the first pressing plate 403 and the second pressing plate 404 are provided with a downwardly curved arc in the middle. Such a setting enables the user to place the fingers in the arc structure. Under the action of the arc structure, it is easier for the user to apply force, and the fingers are more comfortable during the pressing process.

[0035] In summary, by setting up the mounting bracket 4, not only can the fixing effect of the inhaler 5 be achieved, but also when the inhaler 5 is fixed, there is no need for the user to hold the inhaler 5 by hand, thus improving the convenience of operating the device. Moreover, when the user holds the holding chamber 2 and presses the first pressing plate 403 and the second pressing plate 404 extending from the top plate 402 with fingers, the effect of spraying the medicine in the inhaler 5 can be achieved. The heights of the first pressing plate 403 and the second pressing plate 404 are different, so the user can control the amount of medicine sprayed from the inhaler 5 by pressing different pressing plates. The setting of the above structure not only improves the layout efficiency and stability of the inhaler 5, but also makes it more convenient and efficient for the user to operate the inhaler 5, thus improving the practicability of the device.

[0036] In this embodiment, as Figures 5 to 9 shown, the partition plate 6 is fixed on the inner circumference of the positioning bracket 3. One end of the partition plate 6 close to the inhaler 5 is fixedly connected with a first duckbill valve 601, and the other end of the partition plate 6 is fixedly connected with a plug 602. A slot that matches the position and size of the plug 602 is provided on the sealing plate 7. A spiral piece 701 is fixedly connected to the side of the sealing plate 7 close to the partition plate 6. The spiral piece 701 is a sheet structure with a spiral contour. A third duckbill valve 703 is fixedly connected to the top of the sealing plate 7 on the same side as the spiral piece 701. A second duckbill valve 702 is fixedly connected to the other side of the sealing plate 7. The partition plate 6 divides the internal space of the holding chamber 2 into two parts. The medicine sprayed from the inhaler 5 will first diffuse into the holding chamber 2 and be located in the cavity of the holding chamber 2 at the bottom of the partition plate 6. When the user wears the mask 1 and inhales air, the medicine in the holding chamber 2 will enter the mask 1 from the position of the second duckbill valve 702. In this process, the second duckbill valve 702 can play the role of a one-way gasket for the holding chamber 2. When the user exhales, the medicine in the mask 1 and the medicine exhaled from the patient's mouth and nose will accumulate in the mask 1. When the air pressure in the mask 1 is high enough, the third duckbill valve 703 will be opened. At this time, the medicine in the mask 1 will enter the cavity of the holding chamber 2 at the top of the partition plate 6. The user repeatedly inhales air. When the air pressure in the cavity of the holding chamber 2 at the top of the partition plate 6 is high enough, the first duckbill valve 601 is opened. At this time, the medicine in the cavity of the holding chamber 2 at the top of the partition plate 6 enters the cavity of the holding chamber 2 at the bottom of the partition plate 6. By repeating this process, not only can the waste of medicine be prevented, but also the air pressure in the mask 1 will not be too high to affect the normal breathing of the user.

[0037] The working principle of the technical solution provided by the present invention is as follows: When it is necessary to use the medicine, the user first prys the side panels 401 outwards. During the process of the side panels 401 being pried open, the top panel 402 will also be pried open along with the side panels 401. At this time, the top of the mounting frame 4 is no longer blocked by the top panel 402. The user can first insert the inhaler 5 into the mounting frame 4, and then fix the inhaler 5 in the positioning cylinder 301. The size of the positioning cylinder 301 matches the size of the inhaler 5, and the end of the positioning cylinder 301 is provided with an inwardly inclined arc. The setting of this arc allows the user to insert the inhaler 5 into the positioning cylinder 301. The arc can assist in guiding with the inwardly inclined arc, and the inhaler 5 can be accurately plugged into the positioning cylinder 301, thereby improving the convenience of plugging the inhaler 5. In addition, a positioning groove 302 is provided in the positioning cylinder 301, and the positioning groove 303 is provided in the positioning cylinder 301. The contour of 02 is adapted to the outer contour of the inhaler 5, and the setting of the positioning groove 302 can position the inhaler 5, thereby improving the stability of the inhaler 5 after insertion. When the inhaler 5 is inserted, the side plate 401 can be bent back to the initial position. After the side plate 401 is bent back, it will contact the outer wall of the inhaler 5, and the top plate 402 will fit on the top of the inhaler 5. At this time, the mounting frame 4, the side plate 401 and the top plate 402 will wrap and fix the inhaler 5. This setting makes it unnecessary for people to manually hold the inhaler 5 after installation, and under the limiting effect of the mounting frame 4 and the side plate 401, the inhaler 5 has good stability and will not fall off. After the inhaler 5 is installed, the user screws the spacer 2 on the mask 1, and then the user installs the mask 1 at the mouth and nose position.

[0038] After the face mask 1 is installed, the user holds the holding chamber 2 with one or both hands. One end of the top plate 402 extends out the first pressing plate 403 and the second pressing plate 404. Both the first pressing plate 403 and the second pressing plate 404 have an upwardly arched height. Such a setting enables the user to drive the top plate 402 to move downward by pressing down the first pressing plate 403 or the second pressing plate 404. During the process of the downward displacement of the top plate 402, the inhaler 5 will be pressed, and at this time the medicine can be ejected from the inhaler 5. Since the first pressing plate 403 and the second pressing plate 404 are separated in structural setting, when the user presses the first pressing plate 403, the first pressing plate 403 will synchronously drive the top plate 402 and the second pressing plate 404 to displace, but at this time the second pressing plate 404 will not bring a pressing effect on the top plate 402. Similarly, the second pressing plate 404 will not be affected by the structure of the first pressing plate 403 during the pressing process. Since the upwardly arched height of the first pressing plate 403 is less than the upwardly arched height of the second pressing plate 404, the total movement stroke lengths of the first pressing plate 403 and the second pressing plate 404 are different. The user can selectively press the first pressing plate 403 or the second pressing plate 404 to achieve the displacement amount of the downward movement of the top plate 402, so as to control the amount of medicine ejected from the inhaler 5. The medicine ejected from the inhaler 5 will first diffuse into the holding chamber 2 and into the cavity of the holding chamber 2 at the bottom of the partition plate 6. When the user wears the face mask 1 and sucks air, the medicine in the holding chamber 2 will enter the face mask 1 from the position of the second duckbill valve 702. In this process, the second duckbill valve 702 can play the role of a one-way gasket for the holding chamber 2. When the user exhales, at this time the medicine in the face mask 1 and the medicine exhaled from the patient's mouth and nose will accumulate in the face mask 1. When the air pressure in the face mask 1 is large enough, it will cause the third duckbill valve 703 to open. At this time, the medicine in the face mask 1 will enter the cavity of the holding chamber 2 at the top of the partition plate 6. The user repeatedly sucks air. When the air pressure in the cavity of the holding chamber 2 at the top of the partition plate 6 is large enough, the first duckbill valve 601 opens. At this time, the medicine in the cavity of the holding chamber 2 at the top of the partition plate 6 enters the cavity of the holding chamber 2 at the bottom of the partition plate 6. Repeating this process can not only prevent the waste of medicine, but also prevent the air pressure in the face mask 1 from being too large to affect the normal breathing of the user.

[0039] This invention covers any alternatives, modifications, equivalent methods and solutions made within the essence and scope of this invention. To enable the public to have a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments of this invention. However, those skilled in the art can fully understand this invention without the description of these details. In addition, in order to avoid unnecessary confusion to the essence of this invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A quantitative dosing device for medical aerosol, comprising a mask, characterized in that: The mask is screwed with a spacer, one end of the spacer is plugged with a positioning frame, and one end of the positioning frame is plugged with an inhaler; An auxiliary mechanism, the auxiliary mechanism is used to assist the user in manipulating the inhaler, and the auxiliary mechanism is respectively connected to the spacer and the positioning frame; The auxiliary mechanism comprises a mounting frame, a partition and a sealing plate, wherein the mounting frame is fixedly connected to one end of the positioning frame, the partition is fixedly connected to the inner wall of the positioning frame, and the sealing plate is fixedly connected to the inner wall of the spacer.

2. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: The positioning frame is divided into two inner and outer circumferences. A sealing ring is fixedly connected to the inner circumference of the positioning frame, and the partition is fixed to the inner circumference of the positioning frame.

3. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: The outer circumference of the positioning frame is in contact with the outer wall of the spacer, the inner circumference of the positioning frame is in contact with the inner wall of the spacer, and a lightweight groove is provided on the outer circumference of the positioning frame.

4. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: A first duckbill valve is fixedly connected to one end of the partition close to the inhaler, a plug is fixedly connected to the other end of the partition, and a slot that matches the position and size of the plug is provided on the sealing plate.

5. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: A spiral sheet is fixedly connected to one side of the sealing plate close to the partition, and the spiral sheet is a sheet structure with a spiral profile. A third duckbill valve is fixedly connected to the top of the sealing plate on the same side as the spiral sheet, and a second duckbill valve is fixedly connected to the other side of the sealing plate.

6. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: One end of the positioning frame close to the inhaler is fixedly connected with a positioning tube, a positioning groove is provided in the positioning tube, and one end of the positioning tube away from the positioning frame is provided with an arc inclined inwards.

7. The quantitative dosing device for medical aerosol according to claim 1, characterized in that: A side plate is fixedly connected to one side of the mounting frame, a top plate is fixedly connected to the top of the side plate, and a first pressing plate and a second pressing plate extend from one end of the top plate.

8. The quantitative dosing device for medical aerosol according to claim 7, characterized in that: The first pressing plate and the second pressing plate are both provided with downwardly curved arcs in the middle, the ends of the first pressing plate and the second pressing plate are both in contact with the outer wall of the positioning frame, and the upward arched height of the first pressing plate is smaller than the upward arched height of the second pressing plate.

9. The quantitative dosing device for medical aerosol according to claim 7, characterized in that: A first weakened groove is provided at a connection position between the side plate and the mounting frame, and a second weakened groove is provided at a connection position between the top plate and the first pressing plate and the second pressing plate.

10. The quantitative dosing device for medical aerosol according to claim 7, characterized in that: The profile of the mounting frame is adapted to the profile of the inhaler, the side panels abut against the outer side walls of the inhaler, the top panel is attached to the top of the inhaler, and the mounting frame, the side panels, the top panel, the first pressing plate and the second pressing plate are an integrally manufactured structure.

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