CN111956918B - Inhalant device facilitating inhalant to enter deep lung - Google Patents

Abstract

The invention relates to the field of inhalant devices, in particular to an inhalant device beneficial to inhalant entering deep lung, which comprises a shell, wherein a storage part for placing a medicine storage tank and an inhalation part for inhaling medicine by a patient are arranged on the shell; when the negative pressure value generated by the patient to inhale at the inhalation part is equal to or larger than the threshold value, the threshold switch is switched to the opening state from the braking state, and the opening state is maintained, so that the patient can inhale the medicament from the inhalation part. In the scheme of the application, the medicament can enter the lung at a high flow rate, so that a good medicament supply effect and a good treatment effect can be realized, and the risk of adverse reaction caused by medicament administration is greatly reduced.

Description

Inhalant device facilitating inhalant to enter deep lung

Technical Field

The invention relates to the field of inhalant devices, in particular to an inhalant device which is beneficial to the inhalant to enter the deep lung.

Background

The inhalant is used for treating respiratory diseases, can make the medicine directly act on respiratory tract and lung, and has the advantages of direct curative effect, quick response and less systemic adverse reaction.

At present, a common inhalant device is a pressurized metered dose inhaler which mainly comprises a shell, a suction nozzle, a medicine storage tank and a medicine spraying pipe, wherein the medicine spraying pipe is provided with a medicine spraying opening, and high-pressure aerosol is arranged in the medicine storage tank; when the medicine storage tank is used, the medicine storage tank is pressed downwards to spray out a certain amount of aerosol, the aerosol enters the medicine cavity of the shell through the medicine spraying opening in the medicine spraying pipe, a patient exhales deeply and then inhales deeply to suck the aerosol in the medicine cavity to the lung, so that medicine supply to the lung is realized, after inhalation is finished, the patient gargles, and the gargles are spitted out at the medicine washing position in the oral cavity.

In the treatment using the inhalant, the dose control is particularly important, and not only the therapeutic effect is determined, but also the excessive dose may cause extremely adverse side effects, and even serious medical accidents, so that the current inhalant devices are provided with metering valves to dose the medicine ejected at each pressing to ensure the accuracy of medicine delivery.

Although the inhalation device with the above structure has been widely used, in actual clinical work, the inventor found that the current inhalation device still has disadvantages, such as the following:

in the use of an inhaler device, although the amount of medicament ejected per compression is metered, in clinical treatment, the effect of the inhaler on the treatment of pulmonary diseases is the deposition of the inhaler in the airways of the lungs, into which the inhaler can then pass through the oral cavity and the laryngeal airways when used by a patient. Therefore, if the patient inhales more violently, a larger air flow rate can be formed, most inhaled inhalants are deposited in the lung and can enter each small airway in the deep lung, only a small part of the inhaled inhalants are deposited in the oral cavity, the throat and other parts, and good medicine supply effect and treatment effect can be realized; if the patient inhales lightly, a large amount of inhalant is deposited at the positions of the oral cavity and the throat trachea, and cannot reach the fine trachea deep in the lung, so that the treatment effect is poor, and adverse reaction is possibly caused by the fact that a large amount of inhalant is absorbed in the oral cavity and the throat trachea.

Therefore, there is a need to design an inhaler device that can allow the inhaler to enter the deep lung of a patient.

Disclosure of Invention

The invention aims to provide an inhalant device which can enable inhalant to enter the deep lung of a patient, further realize good treatment effect and reduce adverse reaction, aiming at the defect that the inhalant cannot enter the deep lung due to light inhalation of the patient and further cause poor treatment effect in the use of the existing inhalant device.

The embodiment of the invention is realized by the following steps:

the inhalant device which is beneficial to the inhalant to enter the deep part of the lung comprises a shell, wherein the shell is provided with a storage part for placing a medicine storage tank and an inhalation part for the patient to inhale the medicine,

the inhalant device further comprises a threshold switch, wherein the threshold switch is provided with a braking state and an opening state, and the threshold value of the threshold switch is matched with the negative pressure value generated in the inhalation part when the patient inhales the inhalation part. In the scheme of this application, through threshold switch brake state and the difference of open mode, make the patient inhale and just can inhale the medicament when producing the negative pressure and reaching a definite value, so, ensure that the medicament is inhaled fast, and then make the medicament get into the depths of lung, ensure good treatment to and reduce and be used for the side effect.

Preferably, the threshold switch is: when the threshold switch is in a braking state, the medicine is prevented, and the patient cannot inhale the medicine through the inhalation part;

when the negative pressure value generated by the patient to inhale at the inhalation part is equal to or larger than a threshold value, the threshold switch is switched to the on state from the brake state, and the on state is maintained, so that the patient can inhale the medicament from the inhalation part.

In the scheme of the application, when in use, before a patient inhales through the inhalation part, the threshold switch is set in a braking state, the patient inhales through the inhalation part at the moment, negative pressure is formed in the inhalation part, in the initial stage of inhalation, because the negative pressure value is lower than the threshold value of the threshold switch, and the threshold switch is in the braking state, the medicament cannot be inhaled by the patient, the negative pressure formed in the inhalation part gradually reaches the threshold value of the threshold switch along with the inhalation process and the inhalation strength of the patient, the threshold switch is changed from the braking state to the opening state and is kept in the opening state, the negative pressure in the inhalation part is higher at the moment, the negative pressure formed in the lung of the patient is higher, and the medicament can enter the lung at a higher flow rate under the high negative pressure state, so that most of the inhalant is inhaled into the lung and can enter each small airway in the deep of the lung, the medicament can realize good medicament supply effect and treatment effect, and only a small part of the medicament is deposited in the oral cavity, the throat and other parts, so that the risk of adverse reaction of medicament application is greatly reduced, after a patient gargles, the residue of the medicament in the oral cavity, the throat and the trachea of the patient can be basically eliminated, and the medicament safety is greatly improved; after one time of use or before the next time of use, the threshold switch is reset to the braking state, and the next medicine suction operation can be carried out.

Preferably, the inhalant device further comprises a hollow cylinder, one end of the cylinder is opened to form the inhalation part, the other end of the cylinder is provided with a through hole to communicate the internal space of the cylinder with the external atmosphere, a medicine cavity communicated with the inhalation part is further formed in the cylinder,

still be provided with the mouth of spouting on the barrel lateral wall that the medicament chamber corresponds, spout the mouth with the spray tube of medicine storage tank cooperatees, presses during the medicine storage tank, the spray tube court the medicament intracavity is spouted into the medicament.

Preferably, the volume of the medicine cavity is matched with the dose of the quantitative medicine which is sprayed out of the medicine storage tank once, so that the quantitative medicine which is sprayed out of the medicine storage tank once can be cached in the medicine cavity.

Preferably, a sliding member is slidably disposed in the cylinder, the sliding member is in clearance fit or sealing fit with a side wall of the cylinder, the threshold switch is configured to control the sliding of the sliding member along the cylinder, and when a negative pressure between the sliding member and an opening of the suction portion is equal to or greater than a threshold value, the threshold switch is switched from a braking state to an opening state, and the sliding member moves toward the opening of the suction portion.

Preferably, the sliding member has an initial position and a final position in the cylinder, the initial position is located at one end of the cylinder away from the suction portion, the final position is located at one end of the cylinder opening, and the threshold switch is used for braking the sliding member at the initial position.

Preferably, when the sliding member is located at the initial position, the sliding member closes the through hole.

As a preferable technical scheme, a sealing ring is further arranged on the sliding component, and when the sliding component is located at an initial position, the sealing ring is in sealing fit with the inner wall of the cylinder body on the periphery of the through hole.

Preferably, the threshold value of the threshold switch is-8 kPa to-3 kPa.

Preferably, the threshold switch is an elastic shutter having elasticity and provided in the barrel, and when the negative pressure in the drug chamber reaches a threshold value of the threshold switch, deformation of the elastic shutter ensures that the slide member can move toward the opening of the inhalation portion via the elastic shutter.

As another preferred scheme, the threshold switch comprises a blocking piece and a spring, a groove is formed in the inner wall of the cylinder, the blocking piece is arranged in the groove, the spring is arranged between the groove and the blocking piece, and a slope surface is arranged on one side of the blocking piece, which deviates from the suction part.

Preferably, a side of the blocking member facing the inhalation portion is a slope.

As a preferable scheme, the barrel body corresponding to the groove is movably connected with an adjusting block, one part of the adjusting block is positioned in the groove and matched with the spring, the other part of the adjusting block penetrates through the barrel body and is positioned outside the barrel body, and the length of the adjusting block extending into the groove is adjustable.

As a preferred technical scheme, the adjusting block is in threaded fit with the cylinder body.

Preferably, an observation window is arranged on the cylinder body corresponding to the medicament cavity, and the observation window is made of transparent materials.

Preferably, the cylinder is further provided with scale marks along the sliding direction of the sliding member. The actual inhalation volume of the medicament can be more accurately known by the arrangement of the scale marks.

Preferably, the sliding member is provided with a protrusion, the inner wall of the cylinder is provided with a sliding groove matched with the protrusion along the sliding direction of the sliding member, and the protrusion is in sliding fit with the sliding groove.

Preferably, the number of the protrusions is at least two, and the protrusions are uniformly distributed around the circumference direction of the sliding component, and each protrusion corresponds to one sliding groove.

Preferably, a stopper for stopping the sliding member is further provided at an opening of the suction portion.

Preferably, the baffle is arranged at the end of the chute.

Preferably, a notch is further provided at an opening of the suction portion, and the notch communicates with spaces on both sides of the sliding member when the sliding member slides to the notch.

Preferably, the baffle is located at an upper half of the suction opening.

Preferably, the notch is located at the lower half of the opening of the suction part.

Preferably, the sliding component is a plate, and the width of a gap between the sliding component and the inner wall of the cylinder is matched with the thickness of the sliding component, so that the sliding component cannot turn over in the cylinder.

Preferably, the slide member is further provided with a returning member, and the returning member returns the slide member from the end position to the initial position.

As a preferable scheme, the reset component is a pull rope, one end of the pull rope is connected with the sliding component, and the other end of the pull rope penetrates through the through hole of the cylinder body and is positioned outside the cylinder body.

Preferably, the pulling rope is an elastic pulling rope having elasticity, a fixing portion is arranged on the outer wall of the cylinder, and the elastic pulling rope and the fixing portion are detachably connected.

As another preferable scheme, a blocking ring is detachably arranged in the cylinder, and the blocking ring is used for blocking the sliding component.

As a further aspect, the position of the blocker ring is adjustable.

As another preferred scheme, the reset component is a push rod, one end of the push rod is connected with the sliding component, and the other end of the push rod penetrates through the through hole and is positioned outside the cylinder body.

As a further preferable technical scheme, the push rod is in clearance fit with the through hole.

Preferably, the push rod is detachably connected to the movable member.

The embodiment of the invention has the beneficial effects that:

1. in the scheme of the application, when the inhalant is used, the medicine can enter the lung at a higher flow rate, so that most of the inhalant is inhaled into the lung and can enter each small airway deep in the lung, and good medicine supply effect and treatment effect can be realized;

2. only a small part of the medicament is deposited in the oral cavity, the throat and other parts, so that the risk of adverse reaction of the medicament is greatly reduced, the residue of the medicament in the oral cavity, the throat and the trachea of a patient can be basically eliminated after the patient gargles, and the medicament safety is greatly improved;

3. the sliding component is arranged in the barrel, the mouth of a patient inhales to inhale the medicament in the medicament cavity, the sliding component also slides towards the mouth of the patient, when the sliding component slides to the opening of the inhalation part, the medicament in the medicament cavity is completely inhaled by the patient, if the sliding component stays in the barrel, the sliding component indicates that the part of the inhalant between the sliding component and the opening of the inhalation part is not inhaled by the patient, so the actual inhalation volume of the patient can be evaluated through the position of the sliding component, and the monitoring of the administration of medical care personnel and guardians is further facilitated;

4. by adopting the transparent material, the position change condition of the sliding component in the medicament cavity can be conveniently observed so as to master the condition that the medicament in the medicament cavity is inhaled by a patient;

5. although the medicament is in an aerosol state, the medicament still has higher density relative to air, so the gap is arranged at the lower part, and when the subsequent air passes through the gap, the inhalant at the sliding part can enter the respiratory tract or the lung of a patient as much as possible, thereby further ensuring the accuracy of medicament supply;

6. when the elastic pull rope is used as a reset component, the device can be used for respiratory training and vital capacity exercise of patients; the position of the elastic pull rope connected with the fixing part can be adjusted according to the actual condition and the rehabilitation stage of the patient, and the elastic pull rope provides pull force with different strengths so as to adapt to the training requirements of different breathing depths;

7. set up into the push rod that can promote sliding part with reset unit, patient and breathing that to coma patient, consciousness are unclear weak, the patient that is difficult to autonomous inhalation, when using, medical personnel or accompanying person can promote sliding part through the push rod and realize supplementary confession medicine.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an inhalant device for facilitating the inhalation to the deep lung according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the construction of the inhaler device when the threshold switch is an elastic flap;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a cross-sectional view at the barrel in one embodiment;

FIG. 6 is a schematic view of one embodiment of an inhaler device with a notch in the barrel;

figure 7 is a schematic view of one embodiment of an inhaler device with the reset device being a pull cord;

figure 8 is a schematic view of one embodiment of an inhaler device with the reset device being a push rod.

An icon: 1. a housing; 2. a medicine storage tank; 3. a suction portion; 4. a threshold switch; 5. a cylinder body; 6. a through hole; 7. a medicament chamber; 8. a spray inlet; 9. a sliding member; 10. a seal ring; 11. an elastic baffle plate; 12. a blocking member; 13. a spring; 14. a groove; 15. an adjusting block; 16. an observation window; 17. a protrusion; 18. a chute; 19. a baffle plate; 20. a notch; 21. pulling a rope; 22. a fixed part; 23. a blocking ring; 24. a push rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

Example 1, as shown in figures 1-8,

the utility model provides a do benefit to inhalant device that inhalant got into deep in lung, includes casing 1, be provided with on casing 1 and be used for placing the storage of medicine storage tank 2 and receive the portion and be used for the inhalant portion 3 that the patient inhaled the medicament, inhalant device is still including threshold value switch 4, threshold value switch 4 has brake state and open state, threshold value switch 4's threshold value and patient inhale the portion 3 when inhaling 3 in the negative pressure value that produces match. Through the difference of threshold switch 4 brake state and open mode, make the patient inhale and just can inhale the medicament when producing the negative pressure and reaching a definite value, so, ensure that the medicament is inhaled fast, and then make the medicament get into the depths of lung, ensure good treatment to and reduce and be used for the side effect.

In a preferred embodiment, the threshold switch 4 is further configured to: when the threshold switch 4 is in the brake state, the medicine is prevented from being inhaled by the patient through the inhalation unit 3; when the value of the negative pressure generated by the patient to inhale at the inhalation portion 3 is equal to or greater than the threshold value, the threshold switch 4 is switched from the brake state to the on state and is kept in the on state, so that the patient can inhale the medicine from the inhalation portion 3.

In the scheme of the application, when in use, before a patient inhales through the inhalation part 3, the threshold switch 4 is set in a braking state, the patient inhales through the inhalation part 3, negative pressure is formed in the inhalation part 3, in the initial stage of inhalation, because the negative pressure value is lower than the threshold value of the threshold switch 4, and the threshold switch 4 is in the braking state, the medicament can not be inhaled by the patient, along with the inhalation process of the patient and the increase of inhalation strength, the negative pressure formed in the inhalation part 3 gradually reaches the threshold value of the threshold switch 4, at the moment, the threshold switch 4 is changed from the braking state to the opening state and is kept in the opening state, at the moment, the negative pressure in the inhalation part 3 is higher, the negative pressure formed in the lung of the patient is higher, and in the high negative pressure state, the medicament can enter the lung at a higher flow rate, so that most of the inhalant can be inhaled into the lung and can enter each small airway in the deep of the lung, the medicament can realize good medicament supply effect and treatment effect, and only a small part of the medicament is deposited in the oral cavity, the throat and other parts, so that the risk of adverse reaction of medicament application is greatly reduced, after a patient gargles, the residue of the medicament in the oral cavity, the throat and the trachea of the patient can be basically eliminated, and the medicament safety is greatly improved; after one use or before the next use, the threshold switch 4 is reset to the braking state, and the next drug suction operation can be carried out.

In a preferred embodiment, in addition to the above, the inhalant device further includes a hollow cylindrical body 5, one end of the cylindrical body 5 is opened to form the inhalation portion 3, a through hole 6 is provided at the other end of the cylindrical body 5 to communicate the internal space of the cylindrical body 5 with the outside atmosphere, a medicine chamber 7 communicating with the inhalation portion 3 is further formed in the cylindrical body 5,

still be provided with on the 5 lateral walls of barrel that medicament chamber 7 corresponds and spout entry 8, spout entry 8 with the pesticide spray pipe of medicine storage tank 2 cooperatees, presses during medicine storage tank 2, the pesticide spray pipe court spout the medicament in the medicament chamber 7.

In a preferred embodiment, in addition to the above-mentioned configuration, the volume of the medicine chamber 7 is matched with the dose of the medicine in a single ejection from the medicine tank 2, so that the medicine in a single ejection from the medicine tank 2 can be buffered in the medicine chamber 7.

By adopting the scheme of the embodiment, when the medicine storage tank 2 is pressed firstly, the medicine storage tank 2 is enabled to spray quantitative medicine into the medicine cavity 7, and then the patient inhales the medicine, so that the control of the threshold switch 4 on the medicine is facilitated on the one hand, and on the other hand, the essence at the inhalation part 3 is air due to the buffering of the medicine cavity 7, when the patient starts to inhale the medicine, the threshold switch 4 is not opened because the negative pressure does not reach at the moment, so that the air enters the oral cavity first, and then the medicine enters the oral cavity and the throat at a higher speed, and in such a way, the deposition of the medicine in the oral cavity and the throat of the patient is further reduced, the medicine supply effect in the deep lung is improved, and the risk of adverse reaction is also reduced.

In a preferred embodiment, in addition to the above, a sliding member 9 is slidably disposed in the cylinder 5, the sliding member 9 is in clearance fit or sealing fit with the sidewall of the cylinder 5,

the threshold switch 4 is used for controlling the sliding of the sliding component 9 along the cylinder 5, when the negative pressure between the sliding component 9 and the opening of the suction part 3 is equal to or larger than a threshold value, the threshold switch 4 is changed from a braking state to an opening state, and the sliding component 9 moves towards the opening of the suction part 3.

In the scheme, a sliding part 9 is arranged in a cylinder 5, a threshold switch 4 is used for braking the sliding part 9, in the initial stage of inhalation of a patient, the negative pressure value in the cylinder 5 is smaller than the threshold value of the threshold switch 4, the sliding part 9 does not slide under the braking of the threshold switch 4, a medicament cannot be inhaled by the patient, when the negative pressure braking in the cylinder 5 is equal to or larger than the threshold value of the threshold switch 4, the sliding part 9 is separated from the threshold switch 4 and moves towards the opening of an inhalation part 3 under the action of negative pressure, in the process, the medicament is inhaled by the patient, after one-time medicament inhalation is finished, or before the next-time medicament inhalation, the sliding part 9 is reset to be matched with the threshold switch 4, and the next-time medicament inhalation can be carried out;

in addition, in the conventional inhalant drug storage tank 2, a metering valve is arranged on the drug spraying pipe, when the drug spraying pipe is pressed, a certain dose of the inhalant drug is sprayed out of the drug spraying pipe, in the scheme of the application, before the drug storage tank 2 is pressed, the sliding part 9 is matched with the threshold switch 4, the spraying port 8 is positioned between the sliding part 9 and the opening of the inhalation part 3, after the inhalant drug is sprayed, the mouth of a patient inhales to inhale the inhalant drug in the drug cavity 7, the sliding part 9 slides towards the mouth of the patient, when the sliding part 9 slides to the opening of the inhalation part 3, the complete inhalation of the inhalant drug in the drug cavity 7 is shown by the patient, if the sliding part 9 stays in the cylinder 5, the part between the sliding part 9 and the opening of the inhalation part 3 is shown not inhaled by the patient, so that the actual inhalation amount of the patient can be evaluated through the position of the sliding part 9, further facilitating the monitoring of the medication of medical care personnel and guardians.

In a preferred embodiment, in addition to the above, the sliding member 9 has an initial position and a final position in the cylinder 5, the initial position is located at one end of the cylinder 5 away from the suction portion 3, the final position is located at one end of the cylinder 5 where the suction portion 3 is open, and the threshold switch 4 is used for braking the sliding member 9 at the initial position. In this embodiment, the threshold switch 4 is braked at the initial position of the slide member 9, and the slide member 9 is prevented from shaking when not in use.

As a preferable embodiment, further to the above, when the sliding member 9 is located at the initial position, the sliding member 9 closes the through hole 6. In this way, when the patient inhales, the negative pressure in the medicine chamber 7 is ensured, and the problem that the sliding member 9 is difficult to move due to air leakage is avoided.

Preferably, a sealing ring 10 is further disposed on the sliding member 9, and when the sliding member 9 is located at the initial position, the sealing ring 10 is in sealing engagement with the inner wall of the cylinder 5 at the periphery of the through hole 6. The setting of sealing washer, further the matching between the negative pressure value of having ensured actually breathing in of patient and threshold value switch 4 threshold value avoids appearing the outside air entering and enters into medicament chamber 7 by through-hole 6 and leads to the condition that the negative pressure value does not reach the threshold value in medicament chamber 7.

In a preferred embodiment, in addition to the above-mentioned configuration, the threshold value of the threshold switch 4 is-8 kPa to-3 kPa.

Example 2, as shown in figures 3 and 4,

on the basis of any mode of embodiment 1, further, the threshold switch 4 is an elastic blocking piece 11 with elasticity, which is arranged in the cylinder 5, and when the negative pressure in the medicine cavity 7 reaches the threshold value of the threshold switch 4, the deformation of the elastic blocking piece 11 ensures that the sliding part 9 can move towards the opening of the inhalation part 3 through the elastic piece. In this embodiment, the elastic coefficient of the elastic member is matched with the set threshold value to ensure that the patient inhales, so that when the negative pressure in the drug cavity 7 reaches the threshold value, the sliding member 9 can smoothly move toward the inhalation part 3 through the elastic piece to supply the drug.

Example 3. as shown in figures 1 and 2,

an inhalant device facilitating the inhalant to enter the deep lung, based on any mode of embodiment 1, further, the threshold switch 4 includes a blocking member 12 and a spring 13, a groove 14 is provided on the inner wall of the cylinder 5, the blocking member 12 is disposed in the groove 14, the spring 13 is disposed between the groove 14 and the blocking member 12, and a side of the blocking member 12 facing away from the inhalation portion 3 is a slope. In this mode, in the state that the blocking member 12 is not pressed, a part of the blocking member 12 extends out of the inner wall of the cylinder 5, and at this time, the blocking member 9 is blocked, in the present embodiment, the elastic coefficient of the spring 13 is matched with a set threshold value, so that the patient can inhale, when the negative pressure in the medicine cavity 7 reaches the threshold value, the pressure applied to the blocking member 12 by the sliding member 9 can enable the blocking member 12 to be compressed into the groove 14, and further move towards the inhalation part 3, so as to realize medicine supply.

In a preferred embodiment, in addition to the above-mentioned configuration, a side of the blocking member 12 facing the suction portion 3 is a slope. This further facilitates resetting of the slide member 9. In the solution of the present application, the ramp on the blocking element 12 ensures: when the blocking member 12 is not under pressure, at least a part of the sloping surface is located in the groove 14, which ensures that the sliding member 9 can smoothly push the blocking member 12.

As a preferred embodiment, based on the above scheme, further, an adjusting block 15 is movably connected to the cylinder 5 corresponding to the groove 14, a part of the adjusting block 15 is located in the groove 14 and is matched with the spring 13, a part of the adjusting block 15 passes through the cylinder 5 and is located outside the cylinder 5, and the length of the adjusting block 15 extending into the groove 14 is adjustable. The adjusting block 15 is in sealing fit with the cylinder 5, the adjusting block 15 extending into the groove 14 pushes the spring 13 by adjusting the length of the adjusting block 15 extending into the groove 14, so that the height of the blocking piece 12 protruding out of the inner wall of the cylinder 5 is adjusted, the higher the height is, the more difficult the sliding part 9 pushes the blocking piece 12, and the length of the adjusting block 15 extending into the groove 14 is adjusted, so that the threshold value of the threshold value switch 4 is adjusted.

As a preferable technical scheme, the adjusting block 15 is in threaded fit with the cylinder 5. The adjustment of the extension and the withdrawal of the adjusting block 15 can be realized by rotating the adjusting block 15.

In a preferred embodiment, in addition to the above-mentioned aspects, an observation window 16 is provided on the cylinder 5 corresponding to the drug chamber 7, and the observation window 16 is made of a transparent material.

In the above manner, by using the transparent material, the position change of the sliding member 9 in the medicine chamber 7 can be observed conveniently, and the inhalation of the medicine in the medicine chamber 7 by the patient can be grasped.

In a preferred embodiment, in addition to the above, the cylindrical body 5 is further provided with scale marks along the sliding direction of the sliding member 9. The actual inhalation volume of the medicament can be more accurately known by the arrangement of the scale marks.

In a preferred embodiment, in addition to the above, a protrusion 17 is provided on the sliding member 9, a sliding groove 18 which is engaged with the protrusion 17 is provided on the inner wall of the cylinder 5 along the sliding direction of the sliding member 9, and the protrusion 17 is slidably engaged with the sliding groove 18.

As a preferred embodiment, in addition to the above solution, there are at least two protrusions 17 and the protrusions are uniformly distributed around the circumference of the sliding component 9, and each protrusion 17 is corresponding to a sliding slot 18. The projection 17 is provided to greatly facilitate smooth sliding of the sliding member 9 and to prevent the sliding member 9 from rotating.

In a preferred embodiment, in addition to the above, a baffle 19 for blocking the sliding member 9 is further provided at the opening of the suction portion 3. The slide member 9 is blocked by the shutter 19 from falling out of the opening of the suction portion 3.

In a preferred embodiment, in addition to the above, the baffle 19 is provided at an end of the chute 18.

In a preferred embodiment, in addition to the above, a notch 20 is further provided at the opening of the suction portion 3, and when the sliding member 9 slides to the notch 20, the notch 20 communicates with spaces on both sides of the sliding member 9. When the patient inhales all inhalants, the sliding part 9 slides to the opening of the inhalation part 3 and is blocked by the baffle 19, the patient still inhales at the moment, and the notch 20 is arranged, so that the air behind the sliding part 9 can be smoothly inhaled by the patient, discomfort caused by sudden inhalation resistance increase is avoided, and meanwhile, the inhalant at the rear section can also enter the deep part of the lung.

In a preferred embodiment, in addition to the above-mentioned solution, the baffle 19 is located at the upper half of the opening of the suction part 3.

In a preferred embodiment, in addition to the above, the notch 20 is located at the lower half of the opening of the suction portion 3. Although the medicament is in an aerosol shape, the medicament still has a larger density compared with the air, so in the scheme, the notch 20 is arranged at the lower part, and when the subsequent air passes through the notch 20, the inhalant at the sliding component 9 can enter the respiratory tract or the lung of the patient together as much as possible, thereby further ensuring the accuracy of medicament supply.

In a preferred embodiment, in addition to the above, the sliding member 9 is a plate, and the width of the gap between the sliding member 9 and the inner wall of the cylinder 5 is matched with the thickness of the sliding member 9, so that the sliding member 9 cannot be turned inside the cylinder 5. In this embodiment, the sliding member 9 is a thin plate made of a light material, for example, a thin plastic plate is used as the sliding member 9 of the present application, so as to ensure smooth sliding along with the inhalant.

Example 4, as shown in figures 7 and 8,

an inhalant device for facilitating the inhalation into the deep lung is further provided, based on any of the above embodiments, with a restoring member provided on the sliding member 9, by which the sliding member 9 is returned from the end position to the initial position. In this way, the sliding part 9 is convenient to reset, and the patient can use the device for the next time.

Example 5. as shown in figure 7,

based on the scheme of the embodiment 4, further, the reset component is a pull rope 21, one end of the pull rope 21 is connected with the sliding component 9, and the other end of the pull rope 21 penetrates through the through hole 6 of the cylinder 5 and is positioned outside the cylinder 5. When the restoring member needs to be restored, the pull cord 21 is pulled.

In a preferred embodiment, in addition to the above-mentioned configuration, the string 21 is an elastic string 21 having elasticity, a fixing portion 22 is provided on an outer wall of the cylindrical body 5, and the elastic string 21 and the fixing portion 22 are detachably connected. When the elastic pull rope 21 is used as a resetting component, the device is suitable for patients needing breathing training, when the device is used, the proper position of the elastic pull rope 21 is fixed on the fixing part 22, the patients inhale through the opening of the inhalation part 3, the sliding part moves towards the opening of the inhalation part 3 under the traction of the elastic pull rope 21, the pulling force exerted by the elastic pull rope 21 is increased along with the movement of the sliding part 9, when the sliding part reaches a certain position, the patients exhale, the sliding part 9 serves, and the operation is repeated, so that the breathing training and the vital capacity exercise are realized; and the position of the connection between the elastic pulling rope 21 and the fixing part 22 can be adjusted according to the actual condition and the rehabilitation stage of the patient, and the elastic pulling rope 21 provides pulling forces with different strengths so as to adapt to the training requirements of different breathing depths.

Example 6. as shown in figure 7,

an inhalation device for facilitating the inhalation to enter the deep lung, based on the above embodiment 4 or 5, further, a blocking ring 23 is detachably disposed in the barrel 5, and the blocking ring 23 is used for blocking the sliding part 9. The arrangement of the stop ring 23 stops the sliding component 9 reaching a certain position, so that the breathing depth is consistent every time, and a good training effect is ensured.

As a further preferred embodiment, the position of the blocking ring 23 is adjustable. The position of the stop ring 23 can be adjusted according to the actual condition and the rehabilitation stage of the patient to adapt to the training requirements of different breathing depths.

Example 7, as shown in figures 7 and 8,

an inhalant device facilitating the inhalant to enter the deep lung, based on the above embodiment 4 or 6, further, the restoring component is a push rod 24, one end of the push rod 24 is connected to the sliding component 9, and the other end of the push rod 24 penetrates through the through hole 6 and is located outside the cylinder 5.

In this scheme, the setting of through-hole 6 realizes that barrel 5 keeps away from 3 open-ended one ends of suction part and outside atmosphere intercommunication, simultaneously, sets up reset unit into the push rod 24 that can promote sliding part 9, and to stupor patient, unconscious patient of consciousness and breathe inefficiently, be difficult to the patient of autonomic inspiratory, this scheme of adoption, when using, medical personnel or accompanying person can promote sliding part 9 through push rod 24 and realize supplementary confession medicine.

In a further preferred embodiment, the push rod 24 is in clearance fit with the through hole 6. The gap between the push rod 24 and the through hole 6 can conveniently ensure that the gas at the rear can be smoothly supplemented when the sliding component 9 slides towards the opening end of the suction part 3, thereby ensuring the smooth movement of the sliding component 9.

In a further preferred embodiment, the push rod 24 is detachably connected to the movable member. When not in use, the push rod 24 can be taken down, and is convenient to carry and store.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The inhalant device is characterized by comprising a shell, wherein the shell is provided with a storage part for placing a medicine storage tank and an inhalation part for inhaling medicine by a patient;

the device also comprises a hollow cylinder body, one end of the cylinder body is opened to form the suction part, the other end of the cylinder body is provided with a through hole to communicate the inner space of the cylinder body with the external atmosphere, a medicament cavity communicated with the suction part is also formed in the cylinder body,

a spraying opening is further formed in the side wall of the barrel body corresponding to the medicament cavity, the spraying opening is matched with a spraying pipe of the medicament storage tank, and when the medicament storage tank is pressed, the spraying pipe sprays medicaments into the medicament cavity;

a sliding component is arranged in the cylinder body in a sliding way, the sliding component is in clearance fit or sealing fit with the side wall of the cylinder body,

the threshold switch is used for controlling the sliding of the sliding component along the cylinder body, when the negative pressure between the sliding component and the opening of the suction part is equal to or larger than a threshold value, the threshold switch is changed from a braking state to an opening state, and the sliding component moves towards the opening of the suction part;

the threshold switch is used for braking the sliding part, the negative pressure value in the cylinder body is smaller than the threshold value of the threshold switch in the initial stage of the inhalation of the patient, the sliding part does not slide under the braking of the threshold switch, the medicine can not be inhaled by the patient, when the negative pressure braking in the cylinder body is equal to or larger than the threshold value of the threshold switch, the sliding part is separated from the threshold switch and moves towards the opening of the inhalation part under the action of the negative pressure, so that the medicine can be inhaled by the patient,

the threshold switch is an elastic blocking sheet with elasticity arranged in the barrel, when the negative pressure in the medicament cavity reaches the threshold value of the threshold switch, the deformation of the elastic blocking sheet ensures that the sliding component can move towards the opening of the suction part through the elastic sheet,

alternatively, the first and second liquid crystal display panels may be,

threshold switch is including stopping piece and spring be provided with the recess on the inner wall of barrel, it sets up to stop in the recess, the spring sets up between recess and piece, it deviates from to stop the piece one side of inhaling the portion is domatic.

2. An inhaler device as claimed in claim 1, wherein the volume of the medicament chamber matches the dose of a single ejection of the metered dose of medicament from the reservoir, such that a single ejection of the metered dose of medicament from the reservoir can be buffered in the medicament chamber.

3. The inhaler device as recited in claim 2, wherein said sliding member has an initial position within said barrel at an end of said barrel distal from said inhalation port and an end position at an end of said barrel at said inhalation port opening, said threshold switch being configured to actuate said sliding member in said initial position.

4. The inhalation device of claim 3 wherein said slide member closes said through hole when said slide member is in said initial position.

5. An inhaler according to claim 4, wherein a sealing ring is provided on the sliding member, the sealing ring sealingly engaging the inner wall of the barrel around the periphery of the through-bore when the sliding member is in the initial position.

6. An inhaler device as claimed in any one of claims 1 to 5, wherein a viewing window is provided in the barrel corresponding to the medicament chamber, said viewing window being made of a transparent material.

7. The inhalation device according to any one of claims 1 to 5, wherein a projection is provided on the sliding member, a sliding groove is provided on the inner wall of the cylinder in the sliding direction of the sliding member to engage with the projection, the projection and the sliding groove are in sliding engagement, the projection is at least two and is uniformly distributed around the circumference of the sliding member, each projection corresponds to a sliding groove, a baffle plate for blocking the sliding member is further provided at the opening of the inhalation portion, the baffle plate is provided at the end of the sliding groove, a notch is further provided at the opening of the inhalation portion, and when the sliding member slides to the notch, the notch communicates with spaces on both sides of the sliding member;

the sliding component is further provided with a reset component, the reset component enables the sliding component to return to an initial position from an end position, the reset component is a pull rope or a push rod, one end of the pull rope is connected with the sliding component, the other end of the pull rope penetrates through the through hole of the barrel body and is located outside the barrel body, the pull rope is an elastic pull rope with elasticity, a fixing part is arranged on the outer wall of the barrel body, and the elastic pull rope is detachably connected with the fixing part.

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