CN111973848B

CN111973848B - Inhalant device

Info

Publication number: CN111973848B
Application number: CN202010667973.6A
Authority: CN
Inventors: 周丽娟; 周黄源; 朱仕君; 蒋蓉; 温贤秀; 吴行伟
Original assignee: Sichuan Provincial Peoples Hospital
Current assignee: Sichuan Provincial Peoples Hospital
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2022-09-02
Anticipated expiration: 2040-07-13
Also published as: CN111973848A

Abstract

The invention relates to the field of inhalant devices, in particular to an inhalant device which comprises a shell, wherein a storage part for placing a medicine storage tank and an inhalation part for a patient to inhale medicines are arranged on the shell, a medicine cavity communicated with the inhalation part is also arranged in the shell, the medicine cavity is matched with the medicine storage tank, so that when the medicine storage tank ejects the medicines, the medicines enter the medicine cavity, and a detection device for detecting the medicine quantity in the medicine cavity is arranged on the inhalation part. The application discloses inhalant device can monitor the actual dose that inhales the medicament of patient, and when testing result shows that there is the medicament to remain in the medicament chamber in addition, the patient can inhale once more, and the medicament in the medicament chamber is whole to be inhaled completely to this guarantees that the confession medicine reaches sufficient dose, ensures good treatment.

Description

Inhalant device

Technical Field

The invention relates to the field of inhalant devices, in particular to an inhalant device.

Background

The inhalant is used for treating respiratory diseases, can enable the medicine to directly act on respiratory tracts and lungs in inhalation treatment, 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 finds that the current inhalation device still has serious defects, such as the following:

in the use of the inhalant device, although the quantity of medicine ejected is fixed every time of pressing, the inhalant device does not show that the inhalant dose of a patient is fixed, because for weak patients, such as severe patients, elderly patients, patients with blurred consciousness, and the like, the problem that the breathing is light and the inhalation is weak is usually caused in most of the patients, so even if the inhalant device ejects the fixed quantity of aerosol, the patients can not be ensured to inhale the aerosol into the lung through one mouth; as for example children, parents and medical staff have difficulty in reliably grasping their behaviour, so that it is difficult for a child patient to grasp whether he or she has inhaled the inhaler completely, or possibly not at all, when using a current aerosol device. Current inhalant devices do not display the inhaled dose of the ejected inhalant, which presents significant therapeutic and drug dose control challenges.

Therefore, there is a need to design an inhaler device that can monitor the actual inhaled volume of a patient.

Disclosure of Invention

The invention aims to provide an inhalant device which can monitor the actual inhaled quantity of a patient and aims at overcoming the defect that the traditional inhalant device cannot monitor the actual inhaled quantity of the patient.

The invention is realized in the following way:

an inhaler device comprising detection means for detecting the dose of medicament inhaled by a patient or for detecting the residual amount of medicament after inhalation by a patient. The inhalant device realizes the monitoring of the actual inhalation volume of a patient through the arrangement of the detection device.

As preferred scheme, the inhalant device of this application still includes the casing, be provided with on the casing and be used for placing the portion of receiving of storage medicine jar and be used for the patient to inhale the portion of inhaling of medicament still be provided with in the casing with the medicament chamber of portion of inhaling intercommunication, the medicament chamber with storage medicine jar cooperatees, makes during storage medicine jar blowout medicament, the medicament gets into in the medicament chamber, detection device is used for detecting the medicament volume in the medicament chamber.

When the inhalant device is used, a patient holds the part of the inhalation part matched with the mouth part in the mouth part, and a quantitative medicament is sprayed out through the medicament storage tank, the patient inhales from the mouth part, namely, the medicament in the medicament cavity is inhaled to realize the medicament supply of a respiratory tract and a lung, and further, in the scheme of the inhalant device, the medicament cavity is provided with a detection device for detecting the medicament quantity in the medicament cavity, the change of the medicament quantity in the medicament cavity in the inhalation process of the patient is known through the detection device, or the medicament quantity in the medicament cavity after the inhalation of the patient is finished, so that whether the patient completely inhales the medicament in the medicament cavity is evaluated, firstly, the control of the inhalation quantity of the patient by medical personnel is facilitated, and the treatment is facilitated; on the other hand, when the detection result shows that the medicament is remained in the medicament cavity, the patient can inhale again until the medicament in the medicament cavity is completely inhaled, so that the sufficient dosage of the supplied medicament is ensured, and the good treatment effect is ensured.

Preferably, the detection device is a gas component detection device provided with a sensor adapted to the drug component. When the device is used, the sensor collects medicament content data in the medicament cavity, the detection device displays corresponding data or outputs different instructions according to the difference of the data collected by the sensor, so that a user, medical personnel and a nurse can visually acquire the medicament residue condition in the medicament cavity of the patient, and then whether the patient completely inhales the medicament in the medicament cavity is evaluated.

As a further preferable scheme, the detection device displays the amount of the medicament in the medicament cavity in real time. When the medicine storage tank is used by a patient, the detection device is started before the medicine storage tank ejects the medicine, and the medicine content change in the medicine cavity is displayed in real time in the medicine inhalation process of the patient, so that the actual inhalation volume of the patient is controlled.

As another preferred scheme, the detection device is used for displaying the medicament residue in the medicament cavity after the patient inhales. Adopt this kind of mode, after the patient inhales, restart detection device, through detecting whether still exist the medicament in the medicament intracavity and remain, if still exist, then can let the patient inhale once more, detection device of this kind of mode only need qualitatively detect whether exist the medicament intracavity medicament remain can, and need not detect specific volume of remaining, can simplify detection device's performance requirement by a wide margin.

As another preferable mode, the medicament chamber is a variable chamber having a variable volume. In this way, when the patient inhales the medicament gradually, the volume of the medicament cavity is gradually reduced, and the actual inhaled quantity of the medicament of the patient is measured through the change of the medicament cavity.

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 barrel body corresponding to the medicament cavity is made of transparent materials.

In the above mode, through adopting transparent material, the condition that the medicine in the medicine cavity is inhaled by the patient can be conveniently observed and further grasped.

Preferably, the housing includes a hollow cylinder, the suction portion is formed at an opening at one end of the cylinder, the detection device includes a sliding member, the 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 medicament cavity is formed between the sliding member and the opening of the suction portion, an injection port is further disposed on the side wall of the cylinder, the injection port is matched with the medicament spraying pipe of the medicament storage tank, and when the medicament storage tank is pressed, the medicament spraying pipe sprays quantitative medicament into the medicament cavity.

Preferably, an end of the cylinder remote from the suction opening communicates with the outside atmosphere.

Preferably, the cylinder is further provided with scale marks along the sliding direction of the sliding member.

Preferably, the sliding part 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 part, 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 disposed at an end of the chute.

Preferably, a notch is further provided at an opening of the suction portion, and the notch communicates 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 sliding member is further provided with a returning member, and the returning member moves the sliding member from the opening of the suction portion to a position on the cylinder away from the opening of the suction portion, so that the injection port on the cylinder is positioned between the sliding member and the opening of the suction portion.

Preferably, 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 one end of the cylinder body, which is far away from the opening of the suction part, and is positioned outside the cylinder body. When the reset component needs to be reset, the pull rope is pulled.

Preferably, the pulling rope is an elastic pulling rope having elasticity, a fixing part is arranged on the outer wall of the cylinder, and the elastic pulling rope and the fixing part 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 blocking ring is adjustable.

As another preferred scheme, the reset component is a push rod, a through hole is arranged at one end of the cylinder body far away from the suction part, 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.

As another preferable mode, a threshold switch is further provided on the cylinder, and when the negative pressure between the sliding member and the opening of the suction portion reaches a threshold value, the threshold switch is turned on, and the sliding member moves toward the opening of the suction portion.

Preferably, the threshold value of the threshold value 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. .

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.

According to the preferable technical scheme, the barrel body corresponding to the groove is movably connected with an adjusting block, one part of the adjusting block is located in the groove and matched with the spring, the other part of the adjusting block penetrates through the barrel body and is located 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.

The invention has the beneficial effects that:

1. according to the scheme of the application, the detection device for detecting the amount of the medicament in the medicament cavity is arranged in the medicament cavity, the change of the amount of the medicament in the medicament cavity in the inhalation process of a patient is known through the detection device, or the amount of the medicament in the medicament cavity after the inhalation of the patient is finished is evaluated, so that whether the patient completely inhales the medicament in the medicament cavity is evaluated, firstly, the control of the inhalation amount of the patient by medical personnel is facilitated, and the treatment is facilitated;

2. when the detection result shows that the medicament residue exists in the medicament cavity, the patient can inhale again until the medicament in the medicament cavity is completely inhaled, so that the sufficient dosage of the supplied medicament is ensured, and the good treatment effect is ensured;

3. the arrangement of the sliding component can display the dose of the actually inhaled medicament of the patient;

4. the arrangement of the notch ensures that air behind the sliding component can be smoothly sucked by a patient, discomfort caused by sudden increase of suction resistance is avoided, and meanwhile, the inhalant at the rear section can also enter the deep part of the lung;

5. when the elastic pull rope is used as the reset component, the device is suitable for patients needing breathing training; 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;

6. the reset component is set to be the push rod capable of pushing the sliding component, and for unconscious patients, unconscious patients and patients who breathe inefficiently and are difficult to inhale by oneself, medical care personnel or accompanying personnel can push the sliding component through the push rod to realize auxiliary medicine supply when in use;

7. the threshold switch is arranged, so that the medicament in the medicament cavity can quickly enter the respiratory tract of a patient, the medicament supply in the deep lung is realized, and the good medicament application effect is ensured; in addition, the mode also reduces the retention time of the medicament in the oral cavity of a patient, reduces the sedimentation of the medicament in the oral cavity, and further ensures the administration effect and the administration side effect.

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 the construction of one embodiment of an inhaler device of the present application;

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 a partial enlarged view 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.

Icon: 1. a housing; 2. a medicine storage tank; 3. a suction portion; 4. a threshold switch; 5. a barrel; 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, 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,

As a preferable embodiment, in addition to the above scheme, the inhalant device further includes a housing 1, the housing 1 is provided with a storage portion for placing a medicine storage tank 2 and an inhalation portion 3 for a patient to inhale a medicine, a medicine chamber 7 communicated with the inhalation portion 3 is further provided in the housing 1, the medicine chamber 7 is matched with the medicine storage tank 2, so that the medicine enters the medicine chamber 7 when the medicine storage tank 2 ejects the medicine, and the detection device is used for detecting the amount of the medicine in the medicine chamber 7.

When the inhalant device of the embodiment is used, a patient holds the part of the inhalation part 3 matched with the mouth part in the mouth, and a quantitative medicament is ejected through the medicament storage tank 2, the patient inhales from the mouth part, namely, the medicament in the medicament cavity 7 is inhaled to realize the medicament supply of the respiratory tract and the lung, furthermore, in the scheme of the application, the medicament cavity 7 is provided with a detection device for detecting the medicament dose in the medicament cavity 7, the change of the medicament dose in the medicament cavity 7 in the inhalation process of the patient is known through the detection device, or the medicament dose in the medicament cavity 7 after the inhalation of the patient is finished is obtained through the detection device, so that whether the patient completely inhales the medicament in the medicament cavity 7 is evaluated, firstly, the control of the inhalation amount of the patient by medical personnel is facilitated, and the treatment is facilitated; on the other hand, when the detection result shows that the medicament remains in the medicament cavity 7, the patient can inhale again until all the medicament in the medicament cavity 7 is inhaled, so that the sufficient dosage of the supplied medicament is ensured, and the good treatment effect is ensured.

Example 2. as shown in figure 1,

an inhalant device, based on the embodiment 1, the detecting device is a gas component detecting device (not shown in the figure) provided with a sensor, the sensor is matched with the medicine component, and the sensor is conventional at present. When using, the medicament content data in medicament chamber 7 is gathered to the sensor, and detection device shows corresponding data or according to the difference of the data that the sensor gathered and different instruction of output, so, user, medical personnel and nurse person can both audio-visually acquire the medicament condition of remaining in patient's medicament chamber 7, and then whether the evaluation patient inhales the medicament in medicament chamber 7 completely.

As a further preferable scheme, the detection device displays the amount of the medicament in the medicament cavity 7 in real time. When the patient uses, start detection device before medicine storage tank 2 blowout medicament, at the patient in-process of inhaling the medicament, real-time demonstration medicament content in the medicament chamber 7 changes, so realize the control to patient's actual inhaled volume.

Example 3. as shown in figure 1,

an inhalant device, based on the embodiment 1, the detection device is used for displaying the residual medicine in the medicine cavity 7 after the inhalation of the patient. Adopt this kind of mode, after the patient inhales, restart detection device, through detecting whether still have the medicament to remain in medicament chamber 7, if still exist, then can let the patient inhale once more, detection device of this kind of mode only need qualitatively detect whether there is the medicament to remain in medicament chamber 7 can, and need not detect specific volume of remaining, can simplify detection device's performance requirement by a wide margin.

Example 4, as shown in figures 1-8,

an inhalation device, based on the scheme of embodiment 1, the medicament cavity 7 is a variable cavity with variable volume. In this way, when the patient inhales the medicine gradually, the volume of the medicine cavity 7 is gradually reduced, and the actual medicine inhalation amount of the patient is measured through the change of the medicine cavity 7.

Preferably, an observation window 16 is arranged on the cylinder 5 corresponding to the medicament cavity 7, and the observation window 16 is made of a transparent material.

Preferably, the barrel 5 corresponding to the medicament cavity 7 is made of transparent material.

In the above manner, by using the transparent material, the change in the medicine chamber 7 can be observed conveniently to further grasp the inhalation of the medicine in the medicine chamber 7 by the patient.

As a preferable scheme, the housing 1 includes a hollow cylinder 5, an opening at one end of the cylinder 5 forms the inhalation part 3, the detection device includes a sliding component 9, the sliding component 9 is slidably disposed in the cylinder 5, a gap fit or a sealing fit is formed between the side walls of the sliding component 9 and the cylinder 5, the medicament cavity 7 is formed between the sliding component 9 and the opening of the inhalation part 3, a spraying opening 8 is further disposed on the side wall of the cylinder 5, the spraying opening 8 is matched with a spraying pipe of the medicament storage tank 2, and when the medicament storage tank 2 is pressed, the spraying pipe sprays quantitative medicament into the medicament cavity 7.

The present inhalant medicine storage tank 2 is provided with a metering valve on the medicine spraying pipe, when the medicine spraying pipe is pressed, a certain amount of medicine is sprayed out by the medicine spraying pipe, in the present application, the medicine spraying pipe is matched with the spraying port 8 on the cylinder 5, when the medicine storage tank 2 is pressed, the spraying of the quantitative medicine is realized, in the scheme of the present application, before the medicine storage tank 2 is pressed, the sliding part 9 is firstly arranged at one end far away from the opening of the inhalation part 3, the spraying port 8 is positioned between the sliding part 9 and the opening of the inhalation part 3, after the medicine is sprayed, the mouth of a patient inhales the medicine in the medicine cavity 7, in the scheme of the present application, the sliding part 9 is in clearance fit with the side wall of the cylinder 5, the clearance is used for ensuring the smooth sliding of the sliding part, under the premise that the sliding part 9 slides smoothly, the clearance should be small enough to ensure the synchronous movement with the inhalant, when the sliding member 9 slides toward the mouth of the patient and the sliding member 9 slides to the opening of the inhalation part 3, it means that the medicine in the medicine chamber 7 is completely inhaled by the patient, and if the sliding member 9 stays in the cylinder 5, it means that the part of the inhalant between the sliding member 9 and the opening of the inhalation part 3 is not inhaled by the patient.

Preferably, an end of the cylinder 5, which is far from the opening of the suction part 3, is communicated with the external atmosphere. In this way, smooth sliding of the sliding member 9 is ensured when the patient inhales the inhalant.

Preferably, the cylinder 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.

Preferably, 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.

Preferably, the number of the protrusions 17 is at least two, and the protrusions 17 are uniformly distributed around the circumference of the sliding component 9, and each protrusion 17 is provided with 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.

Preferably, 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.

Preferably, the baffle 19 is disposed at an end of the chute 18.

Preferably, 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 inhaling part 3 and is blocked by the baffle 19, the patient still inhales at the state of inhaling at the moment, and the gap 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.

Preferably, the baffle 19 is located in the upper half of the opening of the suction portion 3.

Preferably, 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.

Preferably, 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 turn over in 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 5, as shown in fig. 7 or 8,

an inhalation device according to embodiment 4 is characterized in that a return means is provided on the slide means 9, and the return means moves the slide means 9 from the opening of the inhalation part 3 to a position on the cylinder 5 away from the opening of the inhalation part 3, so that the injection port 8 on the cylinder 5 is positioned between the slide means 9 and the opening of the inhalation part 3.

Example 6. as shown in figure 7,

an inhalant device is characterized in that on the basis of the scheme of embodiment 5, 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 one end of the cylinder 5 far away from the opening of the inhalation part 3 and is positioned outside the cylinder 5. When the restoring member needs to be restored, the pull cord 21 is pulled.

Preferably, the cord 21 is an elastic cord 21 having elasticity, a fixing portion 22 is provided on an outer wall of the cylindrical body 5, and the elastic cord 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 pull 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 pull rope 21 provides pulling forces with different strengths so as to adapt to the training requirements of different breathing depths.

Preferably, a stop ring 23 is detachably disposed in the cylinder 5, and the stop ring 23 is used for stopping the sliding component 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 alternative, 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 figure 8,

on the basis of the scheme of embodiment 5, the reset component is a push rod 24, a through hole 5 is formed in one end, far away from the suction part 3, of the cylinder 5, one end of the push rod 24 is connected with the sliding component 9, and the other end of the push rod penetrates through the through hole 5 and is located outside the cylinder 5. In this scheme, the setting of through-hole 5 realizes that barrel 5 keeps away from 3 open-ended one ends of suction part and outside atmosphere intercommunication, simultaneously, sets up reset unit for can promote sliding part 9's push rod 24, 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.

As a further preferable technical solution, the push rod 24 and the through hole 5 are in clearance fit. The gap between the push rod 24 and the through hole 5 can easily ensure that the gas at the rear can be smoothly supplied when the sliding member 9 slides toward the opening end of the suction part 3, thereby ensuring smooth movement of the sliding member 9.

Example 8. as shown in figure 1,

an inhaler, according to embodiment 7, further comprising a threshold switch 4 provided on the cylinder 5, wherein when the negative pressure between the sliding member 9 and the opening of the inhalation section 3 reaches a threshold value, the threshold switch 4 is turned on, and the sliding member 9 moves toward the opening of the inhalation section 3. The threshold switch 4 is used for preventing the sliding component 9 from sliding towards the opening of the inhalation part 3, and by adopting the mode, when most patients have normal lung capacity or better lung capacity, the patients inhale after spraying the medicament towards the medicament cavity 7, at the moment, negative pressure is formed in the medicament cavity 7, when the negative pressure reaches the threshold negative pressure, the threshold switch 4 is opened, and under the action of the negative pressure value, the medicament in the medicament cavity 7 quickly enters the respiratory tract of the patients, so that the medicament supply in the deep part of the lung is realized, and the good medicament application effect is ensured; in addition, the mode also reduces the retention time of the medicament in the oral cavity of a patient, reduces the sedimentation of the medicament in the oral cavity, and further ensures the medication effect and the medication side effect.

Preferably, the threshold value of the threshold switch 4 is-8 kPa to-3 kPa.

Example 9, as shown in figures 3 and 4,

an inhaler, according to embodiment 8, wherein the threshold switch 4 is an elastic stop piece 11 having elasticity and disposed in the barrel 5, and when the negative pressure in the medicament cavity 7 reaches the threshold value of the threshold switch 4, the deformation of the elastic stop piece 11 ensures that the sliding member 9 can move toward 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 10, as shown in figures 1 and 2,

an inhalant device, on the basis of the embodiment 8, 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 provided in the groove 14, the spring 13 is provided between the groove 14 and the blocking member 12, and a side of the blocking member 12 facing away from the inhalation part 3 is a slope. In this embodiment, in a state where the blocking member 12 is not pressed, a part of the blocking member 12 protrudes from the inner wall of the cylinder 5, and at this time, the sliding member 9 is blocked, in this embodiment, the elastic coefficient of the spring 13 matches a set threshold value, so that the patient can inhale, and 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 compress the blocking member 12 into the groove 14, and further move toward the inhalation portion 3, so as to achieve medicine delivery.

Preferably, the side of the blocking member 12 facing the suction portion 3 is sloped. 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 pushes the blocking member 12 smoothly.

Preferably, the sliding member 9 has an initial position in the cylinder 5 at an end of the cylinder 5 away from the suction portion 3 and a terminal position at an end of the cylinder 5 at which the suction portion 3 is opened, and the threshold switch 4 is used to brake 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.

Preferably, when the sliding member 9 is located at the initial position, the sliding member 9 closes the through hole 5. In this way, when the patient inhales, the negative pressure is formed in the medicine chamber 7, 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 5. Due to the arrangement of the sealing ring, the matching between the actual inspiratory negative pressure value of the patient and the threshold value of the threshold switch 4 is further ensured, and the situation that the negative pressure value in the medicament cavity 7 cannot reach the threshold value due to the fact that the external air enters the medicament cavity 7 through the through hole 5 is avoided.

As a preferable technical scheme, the barrel 5 corresponding to the groove 14 is movably connected with an adjusting block 15, a part of the adjusting block 15 is positioned in the groove 14 and matched with the spring 13, a part of the adjusting block 15 penetrates through the barrel 5 and is positioned outside the barrel 5, and the length of the adjusting block 15 extending into the groove 14 is adjustable. For sealed cooperation between regulating block 15 and the barrel 5, through the length that regulating block 15 stretched into in the recess 14, the regulating block 15 that stretches into recess 14 pushed away spring 13, and then realized stopping the regulation of 12 protrusion in the height of barrel 5 inner wall, and this height is higher, and sliding part 9 just is difficult more to promote stopping 12, so through the length that regulating block 15 stretched into in the recess 14, realizes the regulation of threshold switch 4 threshold promptly.

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.

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

1. An inhaler device, comprising detection means for detecting a dose of medicament inhaled by a patient, or for detecting a residual amount of medicament after inhalation by a patient,

the device also comprises a shell, wherein the shell is provided with a storage part for placing a medicine storage tank and an inhalation part for a patient to inhale the medicine, a medicine cavity communicated with the inhalation part is also arranged in the shell, the medicine cavity is matched with the medicine storage tank, so that the medicine enters the medicine cavity when the medicine storage tank ejects the medicine, the detection device is used for detecting the medicine amount in the medicine cavity,

the casing comprises a hollow cylinder body, the opening at one end of the cylinder body forms the suction part, the detection device comprises a sliding component, the sliding component is arranged in the cylinder body in a sliding way, the sliding component and the side wall of the cylinder body are in clearance fit or sealing fit, the medicament cavity is formed between the sliding component and the opening of the suction part, the side wall of the cylinder body is also provided with an injection port, the injection port is matched with the medicament spraying pipe of the medicament storage tank, and when the medicament storage tank is pressed, the medicament spraying pipe sprays quantitative medicament into the medicament cavity,

the sliding component is also provided with a resetting component, the sliding component is moved to a position on the cylinder body far away from the opening of the suction part through the resetting component, the spraying port on the cylinder body is positioned between the sliding component and the opening of the suction part,

the reset component is a pull rope, one end of the pull rope is connected with the sliding component, the other end of the pull rope penetrates out of one end, away from the opening of the suction part, of the barrel body and is positioned 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 and the fixing part are in separable connection;

a threshold switch is arranged on the cylinder body, when the negative pressure between the sliding component and the opening of the suction part reaches a threshold value, the threshold switch is turned on, the sliding component moves towards the opening of the suction part,

the threshold switch comprises a blocking piece and a spring, a groove is arranged on the inner wall of the cylinder body, the blocking piece is arranged in the groove, the spring is arranged between the groove and the blocking piece,

the groove corresponds to the barrel body, an adjusting block is movably connected to the barrel body, one part of the adjusting block is located in the groove and matched with the spring, the other part of the adjusting block penetrates through the barrel body and is located outside the barrel body, and the length of the adjusting block extending into the groove is adjustable.

2. An inhaler device according to claim 1, wherein the sensing means is a gas composition sensing means provided with a sensor adapted to the medicament composition.

3. The inhaler device as claimed in claim 1, wherein said detection means is adapted to display the amount of medicament in said medicament chamber in real time or to display the remaining medicament in said medicament chamber after inhalation by the patient.

4. The inhalation device of claim 1, wherein said medicament chamber is a variable chamber of variable volume.

5. An inhaler device according to claim 4, wherein the end of the barrel remote from the inlet opening communicates with the external atmosphere.

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, or alternatively, the barrel corresponding to the medicament chamber is made of a transparent material.