WO2022017187A1

WO2022017187A1 - Medical atomizing device

Info

Publication number: WO2022017187A1
Application number: PCT/CN2021/105098
Authority: WO
Inventors: 易杰; 程时毅
Original assignee: 深圳麦克韦尔科技有限公司
Priority date: 2020-07-21
Filing date: 2021-07-08
Publication date: 2022-01-27
Also published as: CN111888592A

Abstract

A medical atomizing device (10), comprising: an atomizer (100) comprising a supporting body (110) and an atomizing body (130), the supporting body (110) being provided with an atomizing cavity (101), and the atomizing body (130) being connected to the supporting body (110) and being used for atomizing liquid medicine in the atomizing cavity (101); a liquid supply mechanism (200) comprising a liquid supply pump (210), the amount of the liquid medicine supplied to the atomizing cavity (101) by the liquid supply pump (210) each time being an integral multiple of the unit dose; and a controller (300) electrically connected to the liquid supply pump (210) and the atomizing body (130). By arranging the liquid supply pump, the medical atomizing device can accurately control and adjust the atomization dose of the liquid medicine.

Description

Medical Nebulizer

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 2020107051921 and the invention titled "Medical Atomization Device" filed with the China Patent Office on July 21, 2020, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the technical field of medical atomization, and in particular, to a medical atomization device.

technical background

Nebulization inhalation therapy is an important and effective treatment method for respiratory diseases. The treatment method uses a medical atomization device to atomize the liquid medicine into a liquid mist including several tiny droplets, and the patient inhales the liquid mist to deposit by breathing. To the lungs, so as to achieve the purpose of painless, rapid and effective treatment.

During the patient's atomization inhalation treatment, for the traditional medical atomization device, the atomized dose of the medical solution can only be determined after all the liquid medicine in the medical atomization device is usually atomized. When a part of the medicinal liquid is atomized, the specific dose of the atomized medicinal liquid cannot be determined, so that the medical atomization device cannot control and adjust the atomized dosage of the medicinal liquid required by different patients, and it is easy to cause the patient to The problem of taking too much or not enough doses to achieve the intended therapeutic effect.

SUMMARY OF THE INVENTION

According to various embodiments of the present application, a medical atomization device is provided.

A medical atomization device, comprising:

The atomizer includes a support body and an atomization body, the support body is provided with an atomization cavity, and the atomization body is connected to the support body and is used for atomizing the medicinal liquid in the atomization cavity;

A liquid supply mechanism, including a liquid supply pump, the amount of liquid medicine input by the liquid supply pump to the atomization chamber is an integer multiple of the unit dose; and

The controller is electrically connected with the liquid supply pump and the atomizer.

In one embodiment, the nebulizer further includes a detection body connected to the support body, and the detection body generates a signal for enabling the nebulizer to start or stop nebulizing the medicinal liquid.

In one embodiment, when the liquid supply pump inputs the liquid medicine into the atomizing chamber and the liquid medicine contacts the detection body, the detection body generates a first signal, and the controller receives the The first signal is used to control the atomizing body to atomize the liquid medicine; when the liquid medicine is consumed and cannot contact the detection body, the detection body generates a second signal, and the controller receives the second signal and controls The atomizing body stops atomizing the medicinal liquid.

In one embodiment, when the medicinal liquid contacts the atomizing body and the detecting body at the same time, the detecting body generates a first signal; when the medicinal liquid is consumed and cannot contact the atomizing body and the detecting body at the same time When in the body, the probe body generates a second signal.

In one of the embodiments, the detection body includes two metal electrodes, when the liquid medicine contacts the two metal electrodes, the detection body generates a first signal; when the liquid medicine is consumed and cannot contact the two metal electrodes at the same time When a metal electrode is used, the detection body generates a second signal.

In one embodiment, the support body has a bottom wall surface that defines a part of the boundary of the atomization cavity, the bottom wall surface is concavely formed with a sink groove that communicates with the atomization cavity, and the support body is further provided with An installation hole communicated with the sink, the detection body is penetrated in the installation hole, and the end of the detection body is located in the sink.

In one of the embodiments, the surface of the detection body located in the atomization chamber is flush with or protrudes from the bottom wall of the atomization chamber.

In one embodiment, the atomizing chamber includes a conical sub-chamber, the support body has a bottom wall surface, and the bottom wall surface simultaneously defines a part of the boundary of the atomizing chamber and the conical sub-chamber, along the medicine The cross-sectional dimension of the conical sub-cavity gradually decreases in the direction of the droplet falling to the bottom wall surface.

In one embodiment, the atomizing chamber has an opening on the support body, and the atomizing body is detachably connected to the support body and covers the opening.

In one of the embodiments, the linear trajectory formed by dropping the medicine droplets into the atomizing chamber is used as a reference, the atomizing body is a sheet-like structure, and the angle between the atomizing body and the linear trajectory is A, where 0°≤A≤30°.

In one of the embodiments, the atomizing body is parallel to the linear trajectory.

In one embodiment, the liquid supply pump includes an output nozzle, and the liquid medicine drops from the output nozzle to the atomization chamber in the form of droplets, and the amount of each droplet is equal to the unit dose .

In one embodiment, the cross section of the output nozzle is annular, the outer diameter of the output nozzle is 1 mm to 5 mm, and the inner diameter of the output nozzle is 0.1 mm to 1 mm.

In one embodiment, an opening is formed on the support body, the output nozzle corresponds to the opening, and the droplets output from the output nozzle enter the atomization chamber through the opening.

In one embodiment, the liquid supply mechanism further includes a suction pipe, a plug body and a liquid storage bottle, the liquid storage bottle has a liquid storage cavity for storing medicinal liquid, and the suction pipe is passed through the plug body and extends into the liquid storage cavity, the plug body is inserted into the liquid storage bottle, there is a ventilation channel connecting the liquid storage cavity between the plug body and the liquid storage bottle, and the external air can pass through the liquid storage cavity. An air channel enters the liquid storage chamber.

In one of the embodiments, the plug body includes an inner plug portion and an outer plug portion that are connected to each other, the outer plug portion is arranged around the inner plug portion, and the inner plug portion and the outer plug portion are formed between the inner plug portion and the outer plug portion. There is an annular slot, the liquid storage bottle is inserted in the annular slot, a spiral groove is recessed on the side peripheral surface of the inner plug portion, and the groove forms the ventilation channel.

In one embodiment, the atomizing body is an ultrasonic atomizing sheet, and the detecting body is a probe.

In one embodiment, the atomizer includes a ceramic sheet and a metal sheet that are attached to each other, the metal sheet is provided with a plurality of micropores, and the medicinal liquid enters the suction nozzle through the micropores.

Since the amount of liquid medicine input by the liquid supply pump into the atomizing chamber is an integer multiple of the unit dose, adjusting the size of the integer can change the amount of liquid medicine output by the liquid supply pump each time, so the amount of liquid medicine output by the liquid supply pump each time can be changed. The amount of liquid medicine is known and controllable. When the liquid supply pump outputs multiple times, the total dose of liquid medicine output by the liquid supply pump for multiple times can be obtained according to the dose value of the liquid medicine output each time, and the total dose of liquid medicine can be obtained. The dose is equal to the dose of the liquid medicine that the user needs to ingest. Therefore, according to the different intake of medicinal liquid by different users, it can be ensured that the medical atomization device can accurately provide an appropriate amount of medicinal liquid, so as to avoid users ingesting too much or too little due to the inability to determine the atomized dose of medicinal liquid. phenomenon, to ensure that the medical atomization device accurately controls and adjusts the atomized dose of the liquid medicine.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the traditional technology, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the traditional technology. Obviously, the drawings in the following description are only the For some embodiments of the application, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic three-dimensional structure diagram of a medical atomization device provided in an embodiment.

FIG. 2 is a schematic diagram of an exploded structure of the medical atomization device shown in FIG. 1 .

FIG. 3 is a schematic three-dimensional structural diagram of an atomizer in the medical atomization device shown in FIG. 1 .

FIG. 4 is a schematic diagram of the exploded structure of the atomizer shown in FIG. 3 .

FIG. 5 is a schematic cross-sectional structure diagram of the atomizer shown in FIG. 3 .

FIG. 6 is a schematic three-dimensional structural diagram of a support body in the atomizer shown in FIG. 3 .

FIG. 7 is a partial cross-sectional structural schematic diagram of the liquid supply mechanism in the medical atomization device shown in FIG. 1 .

FIG. 8 is a schematic diagram of the exploded structure of FIG. 7 .

FIG. 9 is a schematic three-dimensional structural diagram of an inner plug body in the medical atomization device shown in FIG. 1 .

FIG. 10 is a schematic cross-sectional structural diagram of the output nozzle in the medical atomizing device shown in FIG. 1 .

detailed description

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough and complete understanding of the disclosure of this application is provided.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Referring to FIG. 1 and FIG. 2 at the same time, a medical atomization device 10 provided in an embodiment of the present application is used for atomizing a medicinal liquid to form a liquid mist, and the liquid mist is an aerosol including several tiny liquid droplets. The medical atomization device 10 includes an atomizer 100 , a liquid supply mechanism 200 , a controller 300 , a battery 310 , a start switch 320 , a suction nozzle 330 and a casing 340 . The nebulizer 100 , the liquid supply mechanism 200 , the controller 300 and the battery 310 are all housed in the cavity of the housing 340 . The start switch 320 can be slidably connected to the housing 340 , and the start switch 320 is used to control the operation of the entire medical atomization device 10 . . For example, when the start switch 320 is slid to the first position, the medical nebulizer 10 enters the working state; when the start switch 320 is slid to the second position, the medical nebulizer 10 enters the non-working state. The suction nozzle 330 is connected with the housing 340 , and the user can take the liquid mist formed by atomizing the medicinal liquid into the body through the suction nozzle 330 .

In some embodiments, the liquid supply mechanism 200 includes a liquid supply pump 210 , a suction pipe 220 , a plug body 230 and a liquid storage bottle 240 , and the liquid supply pump 210 includes a pump body 211 , a delivery pipe 212 and an output nozzle 213 . The liquid storage bottle 240 has a liquid storage cavity 241 (refer to FIG. 7 ), the liquid storage cavity 241 is used for storing the liquid medicine, and the plug body 230 is inserted in the liquid storage cavity 241 and plays a blocking role in the liquid storage cavity 241 . One end of the suction pipe 220 is connected to the pump body 211 , and the other end of the suction pipe 220 is penetrated through the plug body 230 and extends into the liquid storage chamber 241 . One end of the delivery pipe 212 is connected to the pump body 211 , and the other end of the delivery pipe 212 is connected to the output nozzle 213 . The pump body 211 can be a peristaltic pump body and is electrically connected to the controller 300 , so that the controller 300 can control the operation of the pump body 211 . When the controller 300 makes the pump body 211 work, the suction pipe 220 will suck the medicinal liquid from the liquid storage chamber 241 , and the medicinal liquid in the suction pipe 220 will pass through the delivery pipe 212 and finally be output from the output nozzle 213 .

Each time the pump body 211 works, the amount of liquid medicine output from the output nozzle 213 is an integer multiple of the unit dose, and the value of the unit dose is determined and unchanged. The amount of liquid medicine will change accordingly. According to the value of the unit dose and the size of the integer, the amount of the liquid medicine output by the output nozzle 213 each time is known and controllable. For example, the unit dose may be measured as the dose formed by the output of one droplet (see Figure 5) from the output nozzle 213, in short, when the dose of a single droplet is 0.05ml, the unit dose will be 0.05ml . The output nozzle 213 can output only one droplet each time, and the output nozzle 213 can also output a plurality of droplets each time, for example, two to four droplets. In another embodiment, the unit dose may also be measured as the dose formed by outputting a stream of liquid from the output nozzle 213 . Regardless of whether the liquid medicine is output in the form of droplets 20 or liquid streams, it can be ensured that the amount of liquid medicine output by the output nozzle 213 each time is known and controllable.

Referring to FIG. 5 and FIG. 10 at the same time, in some embodiments, the cross-section of the output nozzle 213 is annular, and the value range of the outer diameter R of the output nozzle 213 is 1 mm to 5 mm. For example, the specific value of the outer diameter R of the output nozzle 213 The value can be 1mm, 2mm, 4mm or 5mm, etc. The value range of the inner diameter r of the output nozzle 213 is 0.1 mm to 1 mm, for example, the specific value of the inner diameter r of the output nozzle 213 may be 0.1 mm, 0.5 mm, 0.8 mm, or 1 mm. When the liquid medicine is output from the output nozzle 213 in the form of droplets 20, the different values of the inner diameter r and outer diameter R of the output nozzle 213 will affect the size of the volume of the droplets 20. For example, in the case of the same inner diameter r, when the outer diameter When R increases, the volume of the droplet 20 increases relatively. It was detected that when the outer diameter R was 0.6 mm and the inner diameter r was 0.26 mm, the weight of the droplet 20 was 22 mg. In other embodiments, the cross section of the output nozzle 213 may also be an elliptical ring or a regular polygonal ring, or the like.

Referring to FIGS. 7 , 8 and 9 simultaneously, in some embodiments, a ventilation channel 250 exists between the plug body 230 and the liquid storage bottle 240 , and external air can enter the liquid storage cavity 241 through the ventilation channel 250 . When the liquid medicine in the liquid storage chamber 241 is consumed, the external air can enter the liquid storage chamber 241 from the ventilation channel 250 to supplement the space released by the consumed liquid medicine, so that the air pressure in the liquid storage chamber 241 is equal to the external air pressure and Realize the air pressure balance, prevent the negative pressure phenomenon caused by too small air pressure in the liquid storage chamber 241, avoid making the suction pipe 220 difficult to absorb the medicinal liquid in the liquid storage chamber 241 under the action of negative pressure, and ensure that the medicinal liquid passes through the suction pipe 220 and finally from the output. The mouth 213 is outputted smoothly.

In some embodiments, the plug body 230 includes an inner plug portion 231 and an outer plug portion 232 that are interconnected. The outer plug portion 232 may have a substantially cylindrical structure, and the outer plug portion 232 is disposed around the inner plug portion 231 so that an annular slot 233 is formed between the inner plug portion 231 and the outer plug portion 232 . The liquid storage bottle 240 is inserted in the annular slot 233, and the annular slot 233 has a very good limiting effect on the liquid storage bottle 240. The part 231 and the liquid storage cavity 241 can be in an interference fit, so that the liquid storage cavity 241 has a good sealing effect on the liquid storage cavity 241 . The inner plug portion 231 has a side peripheral surface, which is pressed against the inner wall surface of the liquid storage, and a groove 231a is recessed on the side peripheral surface of the inner plug portion 231. The groove 231a can extend in a spiral shape. 231a forms the ventilation passage 250 . In other embodiments, the groove 231a can also be linear, etc., as long as the outside air can enter the liquid storage chamber 241 through the groove 231a.

When the start switch 320 slides to the first position and the medical atomizing device 10 enters the working state, when the controller 300 makes the pump body 211 work, the pump body 211 sends the liquid medicine in the liquid storage chamber 241 from the output nozzle 213 to the pump body 211 . output at the set dose. When the controller 300 stops the pump body 211 from working, the pump body 211 will stop absorbing the medicine from the liquid storage chamber 241, so that the output nozzle 213 cannot output the medicine liquid. Obviously, when the start switch 320 is slid to the second position and the medical atomizing device 10 enters a non-working state, the pump body 211 will always fail to work, that is, the output nozzle 213 will never be able to output medicinal liquid.

Referring to FIG. 3 and FIG. 4 at the same time, in some embodiments, the atomizer 100 includes a support body 110, a detection body 120 and an atomization body 130, and an atomization cavity 101 is opened in the support body 110, the detection body 120 and the atomization body Both of 130 are connected to the support body 110 . The medicinal liquid output by the output nozzle 213 will enter the atomizing chamber 101 each time, so that the atomizing body 130 further atomizes the medicinal liquid entering the atomizing chamber 101 to form a liquid mist for the user to absorb. The atomizing body 130 can be an ultrasonic atomizing sheet. The atomizing body 130 includes a ceramic sheet and a metal sheet that are attached to each other. Several micropores are arranged on the metal sheet. The liquid medicine in the liquid is broken and decomposed to form a liquid mist including several tiny liquid droplets. The liquid mist is ejected from the micropores and enters the suction nozzle 330 , so that the user can absorb the liquid mist through the suction nozzle 330 . The detection body 120 is made of metal material, and the detection body 120 may be a rod-shaped probe. The atomizer 130 is electrically connected to the controller 300 , so that the controller 300 can control the operation of the atomizer 130 .

When the pump body 211 works and the liquid medicine output from the output nozzle 213 falls to the atomizing chamber 101, the liquid medicine entering the atomizing chamber 101 will contact the metal sheet of the atomizing body 130 and the detecting body 120 at the same time, so that the The resistance value between the metal sheet of the atomizing body 130 and the detecting body 120 becomes small (close to zero ohm). At this time, the atomizer 130 produces a "conduction" effect with the detector 120 through the medicinal liquid, and the detector 120 will generate a first signal, which may be a high-level electrical signal. The controller 300 receives the first signal and controls the atomizing body 130 to atomize the medicinal liquid in the atomizing chamber 101 , and when the atomizing body 130 is working, the controller 300 will stop the pump body 211 from passing through the output nozzle 213 The liquid medicine is output to the atomizing chamber 101 . When the medicinal liquid in the atomizing chamber 101 is exhausted, there is no metal sheet that can contact the atomizing body 130 and the medicinal liquid of the detecting body 120 in the atomizing chamber 101 at the same time, and then the metal sheet and the detecting body 120 of the atomizing body 130 do not exist. The resistance value between the detectors 120 increases (close to infinity), so that the atomizer 130 cannot produce a "conduction" effect with the detectors 120 through the liquid medicine. At this time, the detection body 120 will generate a second signal, and the second signal may be a low-level electrical signal. It can be understood that the level value of the second signal is obviously lower than that of the first signal. The controller 300 receives the second signal and controls the pump body 211 to work, so that the output nozzle 213 can replenish the liquid medicine into the atomization chamber 101 again. Of course, when the pump body 211 is working, the controller 300 can make the atomization Body 130 stops working.

Therefore, both the detection body 120 and the atomizing body 130 can be equivalent to an impedance sensor. When the detection body 120 and the atomizing body 130 can be in contact with the liquid medicine in the atomizing chamber 101 at the same time and conduct electricity, the impedance sensor sends the control signal to the control The controller 300 sends a first signal, and the controller 300 receives the first signal to make the atomizer 130 work to atomize the liquid medicine, and stop the pump body 211 to stop the operation of the pump body 211 to stop the delivery of the liquid medicine into the atomization chamber 101 . When the liquid medicine in the atomizing chamber 101 is exhausted, and the detection body 120 and the atomizing body 130 cannot be in contact with the liquid medicine in the atomizing chamber 101 at the same time and conduct, the impedance sensor sends a second signal to the controller 300, The controller 300 receives the second signal to make the pump body 211 work to deliver the medicinal liquid into the atomizing chamber 101 again, and stop the working of the atomizing body 130 .

In other embodiments, the detection body 120 itself is an impedance sensor, and the detection body 120 includes two metal electrodes. When the liquid medicine contacts the two metal electrodes, the two metal electrodes "conduct" with each other, and the detection body 120 generates The first signal, the controller 300 receives the first signal and causes the atomizer 130 to atomize the medicinal liquid. When the liquid medicine is exhausted and stops contacting the two metal electrodes at the same time, the detector 120 generates a second signal, and the controller 300 receives the second signal and causes the atomizer 130 to stop atomizing the liquid medicine.

In short, the high-level electrical signal can be used as a basis for judging the presence of medicinal liquid in the atomizing chamber 101, and can also be used as a basis for judging that the controller 300 makes the atomizer 130 work while the pump body 211 stops working. It can be used as a basis for judging that the medicinal liquid in the atomizing chamber 101 is exhausted, and can also be used as a basis for judging that the controller 300 makes the pump body 211 work and the atomizer body 130 stops working.

Taking the output nozzle 213 outputting one droplet 20 as an example to illustrate the working principle of the medical atomization device 10: the first step is to slide the start switch 320 to the first position to make the medical atomization device 10 enter the working state. At the time, the controller 300 makes the pump body 211 work, and the pump body 211 inputs a droplet 20 into the atomization chamber 101 through the output nozzle 213 . In the second step, the detecting body 120 and the atomizing body 130 are in contact with the liquid medicine in the atomizing chamber 101 at the same time and conduct, the detecting body 120 sends out a high-level electrical signal, and the controller 300 receives the high-level electrical signal to control the The liquid medicine is atomized, and the pump body 211 is controlled to stop delivering the droplets 20 to the atomization chamber 101 . In the third step, when the liquid in the atomizing chamber 101 is exhausted, the detection body 120 and the atomizing body 130 cannot be in contact with the liquid medicine in the atomizing chamber 101 at the same time and conduct electricity, and the detection body 120 sends a low-level electrical signal to control the The device 300 receives the low-level electrical signal to control the pump body 211 to deliver a droplet 20 to the atomizing chamber 101 again, and controls the atomizing body 130 to stop working. The fourth step, repeating the second and third steps, according to the final dose of the medicinal liquid required by the user, makes the pump body 211 work multiple times to input a plurality of droplets 20 into the atomizing chamber 101 through the output nozzle 213. The total dose formed by the plurality of droplets 20 is exactly equal to the dose that the user needs to take in the medicinal liquid. In the fifth step, slide the start switch 320 to the second position to make the medical atomizing device 10 enter the non-working state.

Since the amount of liquid medicine input by the output nozzle 213 into the atomizing chamber 101 is an integer multiple of the unit dose, for example, the unit dose is measured by the dose of one droplet, adjusting the size of the integer can change the output of the output nozzle 213 each time Therefore, the amount of liquid medicine output by the output nozzle 213 is known and controllable each time. After the output nozzle 213 outputs multiple times, according to the dose value of the liquid medicine output each time, the output nozzle 213 multiple times can be obtained. The total dose of the liquid medicine after output, and make the total dose equal to the dose of the liquid medicine that the user needs to take. Therefore, according to the different intake of medicinal liquid by different users, it can be ensured that the medical atomization device 10 can accurately provide an appropriate amount of medicinal liquid, so as to avoid users taking too much or too little due to the inability to determine the atomized dose of medicinal liquid. phenomenon, to ensure that the medical atomization device 10 accurately controls and adjusts the atomized dose of the liquid medicine.

It can be understood that, if the dose of one droplet has met the user's requirement, after the atomizing body 130 completes the atomization of the droplet, the atomizing body 130 stops working. In practical applications of the medical atomizing device 10, only one droplet is usually atomized at a time.

In other embodiments, when the output nozzle 213 injects the liquid medicine into the atomization chamber 101 in the form of a single liquid droplet 20 each time, the output nozzle 213 injects the liquid medicine into the atomization chamber 101 in the form of a liquid flow or a plurality of liquid droplets 20 each time. When medicinal liquid is input into the cavity 101, this input method has a relatively large dose of medicinal liquid each time, which is more suitable for users who need to take a large dose of medicine.

Referring to FIGS. 4 , 5 and 6 simultaneously, in some embodiments, the support body 110 has a bottom wall 111 , the bottom wall 111 defines a part of the boundary of the atomizing chamber 101 , and a sink groove 111 a is recessed on the bottom wall 111 . , the sink 111a and the atomization chamber 101 communicate with each other. The support body 110 is also provided with a mounting hole 102, and the mounting hole 102 communicates with the sinking groove 111a. When the detection body 120 is inserted into the installation hole 102, the end of the detection body 120 is matched with the recessed groove 111a, that is, the end of the detection body 120 is located in the recessed groove 111a. If the detection body 120 is directly attached to the bottom wall surface 111, so that the detection body 120 protrudes from the bottom wall surface 111 by a relatively large height, in the process of being atomized and consumed, the detection body 120 will be adsorbed on the detection body 120. The part of the medicinal liquid adsorbed on the detector 12 will not be able to contact the atomizer 130, that is, the “conduction” effect between the detector 120 and the atomizer 130 cannot be realized, resulting in residual in the nebulizer due to adsorption. The liquid medicine on the detection body 120 cannot be atomized, thereby affecting the actual intake of the liquid medicine by the user. In this embodiment, by matching the detection body 120 with the sink groove 111a, the surface 121 of the detection body 120 in the atomization chamber 101 and the bottom wall surface 111 can be flush with each other, or the surface 121 of the detection body 120 can protrude from the bottom wall surface 111 The relatively small height can reduce the residual medicinal liquid on the detection body 120 that cannot be atomized, so that most of the medicinal liquid in the atomizing chamber 101 can be completely atomized, so as to fully ensure the actual intake of medicinal liquid by the user. .

Referring to FIG. 4 , in some embodiments, the atomizing chamber 101 has an opening 101 b on the support body 110 , and the opening 101 b can be regarded as formed by the atomizing chamber 101 penetrating the side surface 113 of the supporting body 130 . The atomizing body 130 is disposed on the side surface 113 and is detachably connected to the supporting body 110. For example, the atomizing body 130 can be connected to the supporting body 110 by means of snap connection or screw connection. After the atomizing body 130 is connected to the supporting body 110 , the atomizing body 130 will cover the opening 101 b , in other words, the supporting body 110 and the atomizing body 130 together form the atomizing cavity 101 . The support body 110 further includes a side wall surface 112, the side wall surface 112 is connected with the bottom wall surface 111, and the side wall surface 112 and the bottom wall surface 111 intersect at an obtuse angle. The atomizing chamber 101 further includes a conical sub-chamber 101a, and the side wall surface 112 and the bottom wall surface 111 define the boundary of the conical sub-chamber 101a. The cross-sectional size of the conical sub-cavity 101a gradually decreases along the direction in which the drug droplet 20 falls to the bottom wall surface 111 . By arranging the conical sub-chamber 101a, on the one hand, the liquid in the atomizing chamber 101 can flow to the bottom wall surface 111 as much as possible to reduce the residual liquid medicine on the side wall surface 112; The distance between the atomizing bodies 130 makes it easier for the detector body 120 and the atomizing body 130 to be in contact with the liquid medicine at the same time to form a "conduction" effect, thereby ensuring that more liquid medicine is atomized and further reducing the number of atomization chambers 101 residues in the liquid.

The atomization chamber 101 also forms an opening 101c on the support body 110, the output nozzle 213 corresponds to the opening 101c, and the droplets 20 output by the output nozzle 213 enter the atomization chamber 101 through the opening 101c. Referring to FIG. 5 , in some embodiments, with reference to the linear trajectory 30 formed by the droplets 20 falling to the atomizing cavity 101 , when the atomizing body 130 is a sheet-like structure of an ultrasonic atomizing sheet, the atomizing body 130 The included angle with the straight track 30 is A, where 0°≤A≤30°. For example, the specific value of the included angle may be 0°, 15°, 20°, or 30°. Generally speaking, the included angle A can be understood as the inclination angle of the atomizing body 130 relative to the vertical direction. When the inclination angle of the atomizing body 130 relative to the vertical direction is zero, that is, the atomizing body 130 is parallel to the straight line 30, so that the atomizing body 130 is just vertically arranged. When the chemical liquid in the liquid is atomized, it can be ensured that the atomized liquid mist is sprayed in a direction perpendicular to the linear trajectory 30 , that is, the liquid mist is sprayed in a horizontal direction. When the liquid mist is sprayed in the horizontal direction, since the cavity of the suction nozzle 330 also extends in the horizontal direction, the flow resistance of the liquid mist in the cavity can be reduced, so that the liquid mist can be quickly taken into the body by the user.

The battery 310 is used to provide energy for the operation of the pump body 211 , the atomizer 130 and the controller 300 , and the battery 310 can be a rechargeable battery 310 that is used in cycles.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the scope of protection of the patent of the present application shall be subject to the appended claims.

Claims

A medical atomization device, comprising:

The atomizer includes a support body and an atomization body, the support body is provided with an atomization cavity, and the atomization body is connected to the support body and is used for atomizing the medicinal liquid in the atomization cavity;

A liquid supply mechanism, including a liquid supply pump, the amount of liquid medicine input by the liquid supply pump to the atomization chamber is an integer multiple of the unit dose; and

The controller is electrically connected with the liquid supply pump and the atomizer.
The medical nebulizer device according to claim 1, wherein the nebulizer further comprises a detecting body connected with the supporting body, the detecting body is used to make the nebulizing body start or stop the spraying of the medicinal liquid Atomized signal.
The medical atomization device according to claim 2, wherein when the liquid supply pump inputs the liquid medicine into the atomization chamber and makes the liquid medicine contact the detection body, the detection body generates a first signal, The controller receives the first signal and controls the atomizing body to atomize the medicinal liquid; when the medicinal liquid is consumed and cannot contact the detecting body, the detecting body generates a second signal, which the controller receives The second signal controls the nebulizer to stop nebulizing the medicinal liquid.
The medical atomizing device according to claim 3, wherein when the medicinal liquid contacts the atomizing body and the detecting body at the same time, the detecting body generates a first signal; when the medicinal liquid is consumed and cannot contact the When the nebulizer and the probe are connected, the probe generates a second signal.
The medical atomization device according to claim 3, wherein the detection body comprises two metal electrodes, when the liquid medicine contacts the two metal electrodes, the detection body generates a first signal; when the liquid medicine is consumed When the two metal electrodes cannot be contacted at the same time, the detection body generates a second signal.
The medical atomization device according to claim 2, wherein the support body has a bottom wall surface defining a boundary of the atomization cavity, and a sink groove that communicates with the atomization cavity is recessed on the bottom wall surface, so The support body is also provided with an installation hole communicating with the sink, the detection body is penetrated in the installation hole, and the end of the detection body is located in the sink.
The medical atomizing device according to claim 6, wherein a surface of the detecting body located in the atomizing chamber is flush with or protruding from the bottom wall of the atomizing chamber.
The medical atomizing device according to claim 1, wherein the atomizing chamber comprises a conical sub-chamber, the support body has a bottom wall surface, and the bottom wall surface simultaneously defines the atomizing chamber and the conical sub-chamber At a part of the boundary of the cavity, the cross-sectional dimension of the tapered sub-cavity gradually decreases along the direction that the medicine droplets fall to the bottom wall surface.
The medical atomization device according to claim 1, wherein the atomization chamber has an opening on the support body, and the atomization body is detachably connected to the support body and covers the opening.
The medical atomization device according to claim 1, wherein a linear trajectory formed by dropping the medicine droplets into the atomization cavity is a reference, the atomization body is a sheet-like structure, and the atomization body and the The included angle of the straight track is A, where 0°≤A≤30°.
The medical atomizing device according to claim 10, wherein the atomizing body is parallel to the linear trajectory.
The medical atomization device according to claim 1, wherein the liquid supply pump further comprises an output nozzle, and the liquid medicine drops from the output nozzle to the atomization chamber in the form of droplets, each of the liquid The amount of drop is equal to the unit dose.
The medical atomization device according to claim 12, wherein the cross section of the output nozzle is annular, the outer diameter of the output nozzle is 1 mm to 5 mm, and the inner diameter of the output nozzle is 0.1 mm to 1 mm.
The medical atomization device according to claim 12, wherein an opening is formed on the support body, the output nozzle corresponds to the opening, and the droplets output from the output nozzle enter the atomization through the opening intracavity.
The medical atomizing device according to claim 1, wherein the liquid supply mechanism further comprises a suction pipe, a stopper and a liquid storage bottle, the liquid storage bottle has a liquid storage cavity for storing medicinal liquid, and the suction pipe passes through It is arranged in the plug body and extends into the liquid storage cavity, the plug body is inserted into the liquid storage bottle, and there is a ventilation channel connecting the liquid storage cavity between the plug body and the liquid storage bottle, External air can enter the liquid storage chamber through the ventilation channel.
The medical atomizing device according to claim 15, wherein the plug body comprises an inner plug part and an outer plug part which are connected to each other, the outer plug part is arranged around the inner plug part, and the inner plug part and the outer plug part are connected to each other. An annular slot is formed between the outer plug parts, the liquid storage bottle is inserted in the annular slot, and a spiral groove is recessed on the side peripheral surface of the inner plug part. The ventilation channel is formed.
The medical atomizing device according to claim 2, wherein the atomizing body is an ultrasonic atomizing sheet, and the detecting body is a probe.
The medical atomizing device according to claim 17, wherein the atomizing body comprises a ceramic sheet and a metal sheet that are attached to each other, a plurality of micro-holes are arranged on the metal sheet, and the medicinal liquid enters the air through the micro-holes. mouthpiece.