CN111956919B - Inhalation device for an inhalant device with monitoring of the inhalation volume - Google Patents

Abstract

The invention relates to the field of inhalant devices, in particular to an inhalant device capable of monitoring inhalation volume, which is used for the inhalant device and is used together with the inhalant device. In the scheme of this application, the detection component may adopt a detection structure combining an existing sensor capable of detecting the amount of the medicament and a display, or may adopt a structure displaying the amount of the medicament inhaled by the patient through other forms. The application discloses inhalation device is provided with the detection component who shows the patient and inhale the medicament volume, and then realizes the control to patient's actual inhaled volume.

Description

Inhalation device for an inhalant device with monitoring of the inhalation volume

Technical Field

The present invention relates to the field of inhalation devices, and in particular to an inhalation device for inhalation devices which allows the inhalation volume to be monitored.

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 a 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 inhalation device which can monitor the actual inhaled quantity of a patient and aims at the defect that the current inhalation device cannot monitor the actual inhaled quantity of the patient.

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

an inhalation device for an inhaler device for monitoring the amount of inhaled medicament for use with an inhaler device, said inhalation device comprising a detection means for indicating the amount of medicament inhaled by a patient. In the solution of the present application, the detection component may adopt a detection structure combining an existing sensor capable of detecting the amount of the medicament and a display, or may adopt a structure displaying the amount of the medicament inhaled by the patient through other forms.

Preferably, the suction device is detachably connected with the inhalant device.

Preferably, the inhalation device comprises a hollow cylinder, one end of the cylinder is opened to form the inhalation part, the other end is provided with a through hole, the cylinder is also provided with a medicine spraying hole matched with a medicine spraying port of the inhalation device, a medicine cavity communicated with the inhalation part and the medicine spraying hole is formed in the cylinder,

the detection part comprises a sliding part which is arranged in the barrel in a sliding mode, the sliding part is in clearance fit or sealing fit with the side wall of the barrel, and when a patient inhales the medicament in the medicament cavity from the inhalation part, the position of the sliding part changes along with the change of the medicament inhaled quantity of the patient.

Preferably, the volume of the medicine cavity is matched with the dose of the fixed-quantity medicine ejected by the inhalant device at a single time, so that the fixed-quantity medicine ejected by the medicine storage tank at a single time can be cached in the medicine cavity.

Preferably, the inhalant device comprises a suction nozzle, and the cylinder is detachably arranged on the suction nozzle. In present inhalant device, the patient passes through the suction nozzle and inhales the medicament, in this scheme, when needing to use, with the barrel with the suction nozzle be connected can, so, the convenience further makes things convenient for this application inhalation's use.

Preferably, the sliding member has an initial position and a final position in the barrel, the initial position being at an end of the barrel remote from the suction portion, the final position being at an end of the barrel opening at the suction portion, and the spray opening being between the initial position and the final position.

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

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.

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 suction nozzle has a hollow cylindrical structure with both ends open.

Preferably, the slide member is further provided with a return member, and the return 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 body and used for blocking the sliding component.

As a further aspect, the position of the blocker ring is adjustable. The position of the blocking ring can be adjusted according to the actual condition and the rehabilitation stage of the patient so as to adapt to the training requirements of different breathing depths.

Preferably, the spraying hole is detachably connected with a seal head.

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 inhalation device further comprises a threshold switch, the threshold switch has a brake state and an open state, the threshold of the threshold switch is matched with the negative pressure value generated in the inhalation part when the patient inhales the inhalation part,

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.

Preferably, the threshold value of the threshold value switch is adjustable.

Preferably, the threshold switch is configured to control sliding of the sliding member along the inside of the barrel, and when a negative pressure between the sliding member and the 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 on state, 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.

As the preferred scheme, still swing joint has the regulating block in the recess, the spring towards the inboard one end of barrel with block piece and link to each other, the other end with the regulating block links to each other.

Preferably, the adjusting block is in threaded fit with the groove.

The embodiment of the invention has the beneficial effects that:

1. the inhalation device is provided with a detection component for displaying the amount of the medicine inhaled by the patient, so that the actual inhaled amount of the patient can be monitored;

2. when the inhalation device is used, the inhalation device is matched with the existing inhalation device, the medicine spraying hole of the cylinder body is opposite to the medicine spraying port of the inhalation device, so that the medicine sprayed by the inhalation device enters the medicine cavity, and when a patient inhales the medicine in the medicine cavity from the inhalation part, the position of the sliding component changes along with the change of the medicine inhaled quantity of the patient, so that the actual inhaled medicine quantity of the patient is monitored;

3. by adopting the scheme, the medicine supply effect in the deep lung is improved, and the risk of adverse reaction is reduced;

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

6. In the scheme, the reset component is set as the push rod capable of pushing the sliding component, so that medical care personnel or accompanying personnel can push the sliding component through the push rod to realize auxiliary medicine supply for unconscious patients, unconscious patients and patients who have weak breath and are difficult to inhale by oneself;

7. in the scheme of this application, threshold switch's setting, the medicament can enter into the lung with higher velocity of flow, so, most is inhaled and is got into the lung in making the inhalant, and can enter into each small air passage of lung depths, can realize good confession medicine effect and treatment, moreover, because only the deposit of part such as oral cavity and throat, the adverse reaction risk of using medicine has been reduced by a wide margin, after the patient gargles one's mouth, can eliminate the medicament basically and remain in patient's oral cavity and throat trachea, the safety of using medicine has been improved by a wide margin.

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 structural diagram of an inhalation device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an inhalation device with a notch formed on a cartridge according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

figure 4 is a schematic view of the configuration of the inhalation device in cooperation with an inhalant device;

FIG. 5 is a schematic view of a partial structure of an elastic block piece when the pre-fabricated switch is the elastic block piece;

figure 6 is a schematic cross-sectional view of the cartridge of one embodiment of the inhalation device of the present invention;

FIG. 7 is a schematic structural view of one embodiment of the inhalation device wherein the reset device is a push rod;

figure 8 is a schematic view of one embodiment of the inhalation device with the reset device being a pull cord.

Icon: 1. a detection section; 2. a barrel; 3. a suction portion; 4. a through hole; 5. a pesticide spraying hole; 6. a sliding member; 7. a medicine storage tank; 8. a medicament chamber; 9. an observation window; 10. a protrusion; 11. a baffle plate; 12. a notch; 13. a reset component; 14. a fixed part; 15. a blocking ring; 16. a threshold switch; 17. a suction nozzle; 18. an elastic baffle plate; 19. a blocking member; 20. a spring; 21. a groove; 22. an adjusting block; y, initial position; z, end position.

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", "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,

an inhalation device for monitoring the inhaled quantity for an inhalation device for use in conjunction with an inhalation device, said inhalation device comprising a detection means 1 for indicating the quantity of medicament inhaled by a patient. The detection component 1 may be a detection structure in which a sensor capable of detecting the amount of the medicine is combined with a display, or may be a structure in which the amount of the medicine inhaled by the patient is displayed in another form.

When the inhalation device of the embodiment is used, the inhalation device is matched with the existing inhalation device, and the detection component 1 for displaying the amount of the medicine inhaled by the patient is arranged, so that the actual inhalation amount of the patient can be monitored.

In a preferred embodiment, in addition to the above, the suction device and the inhalant device are detachably connected.

As a preferable embodiment, in addition to the above mode, further, the inhalation device comprises a hollow cylinder 2, one end of the cylinder 2 is opened to form the inhalation part 3, the other end is provided with a through hole 4, the cylinder 2 is further provided with a medicine spraying hole 5 matched with a medicine spraying opening of the inhalation device, a medicine cavity 8 communicated with the inhalation part 3 and the medicine spraying hole 5 is formed in the cylinder 2,

the detection part 1 comprises a sliding part 6 arranged in the cylinder body 2 in a sliding mode, the sliding part 6 is in clearance fit or sealing fit with the side wall of the cylinder body 2, and when a patient inhales medicine in the medicine cavity 8 through the inhalation part 3, the position of the sliding part 6 changes along with the change of the medicine inhalation amount of the patient.

When the inhalation device of the embodiment is used, the inhalation device is matched with the current inhalation device, the medicine spraying hole 5 of the cylinder body 2 is opposite to the medicine spraying opening of the inhalation device, so that the medicine sprayed by the inhalation device enters the medicine cavity 8, when a patient inhales the medicine in the medicine cavity 8 through the inhalation part 3, the position of the sliding component 6 changes along with the change of the medicine inhalation dosage of the patient, so that the actual medicine inhalation dosage of the patient is monitored, in the scheme, the inhalation device comprises a shell, an inhalation nozzle 17 and a medicine storage tank 7, a pushing part is arranged in the shell, a gap is formed between the pushing part and the shell, a gap also exists between the medicine storage tank 7 and the shell, and the space in the cylinder body 2 is communicated with the outside atmosphere through the through hole 4 and the gap.

Preferably, the volume of the medicine cavity 8 is matched with the dose of the fixed quantity medicine ejected by the inhalant device once, so that the fixed quantity medicine ejected by the medicine storage tank 7 once can be cached in the medicine cavity 8.

When the scheme of the embodiment is used, the medicine storage tank 7 of the inhalant device is firstly pressed to ensure that the medicine storage tank 7 ejects a fixed amount of medicine into the medicine cavity 8, the patient performs inhalation again, when the patient inhales the medicine, the sliding component 6 slides along with the medicine, on one hand, the method is convenient for monitoring the actual inhaled quantity of the medicine, the actual inhaled dose of the patient is evaluated through the position of the sliding component 6 after the patient inhales the medicine, on the other hand, when the patient starts to inhale the medicine, the flow rate of inhaled air is low at the beginning stage, and then the flow rate is increased to be high, on the other hand, the scheme of the embodiment is adopted, because the buffer memory of the medicine cavity 8 is substantially air at the inhalation part 3, when the flow rate is low, the substantially air enters the oral cavity, and then the medicine enters the oral cavity and the throat at high speed, and the mode also reduces the deposition of the medicine in the oral cavity and the throat of the patient, the medicine supply effect in the deep lung is improved, and the risk of adverse reaction is also reduced.

Preferably, the inhalant device comprises a suction nozzle 17, and the cylinder 2 is detachably arranged on the suction nozzle 17. In the current inhalant device, a patient inhales the medicament through the inhalation nozzle 17, and in the scheme, when the inhalant device needs to be used, the barrel body 2 is connected with the inhalation nozzle 17, so that the use of the inhalant device is further facilitated.

In a preferred embodiment, in addition to the above-mentioned mode, the sliding member 6 further has an initial position Y and a final position Z in the barrel 2, the initial position Y is located at one end of the barrel 2 far away from the suction portion 3, the final position Z is located at one end of the opening of the suction portion 3 of the barrel 2, and the medicine spraying hole 5 is located between the initial position Y and the final position Z. Before use, the sliding component 6 is reset to the initial position Y, then the medicine is sprayed into the medicine cavity 8, when a patient inhales the medicine, the sliding component 6 moves towards the inhalation part 3 under the negative pressure action of the medicine cavity 8, and therefore the display of the sliding component 6 on the actual inhaled medicine of the patient is achieved.

In a preferred embodiment, in addition to the above, when the sliding member 6 is located at the initial position Y, the sliding member 6 closes the through hole 4. In this way, the negative pressure is formed in the medicine chamber 8 when the patient inhales, and the problem that the sliding member 6 is difficult to move due to air leakage is avoided.

In a preferred embodiment, in addition to the above-mentioned embodiment, an observation window 9 is further provided in the cylinder 2 corresponding to the drug chamber 8, and the observation window 9 is made of a transparent material.

In the above manner, by using the transparent material, the change in the position of the sliding member 6 in the drug chamber 8 can be easily observed, and the inhalation of the drug in the drug chamber 8 by the patient can be easily grasped.

In a preferred embodiment, in addition to the above-described embodiment, the cylindrical body 2 is further provided with scale marks along the sliding direction of the sliding member 6. 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-mentioned embodiment, a protrusion 10 is further provided on the sliding member 6, a sliding groove that engages with the protrusion 10 is provided on the inner wall of the cylinder 2 along the sliding direction of the sliding member 6, and the protrusion 10 and the sliding groove are slidably engaged with each other.

As a preferable embodiment, in addition to the above manner, further, the number of the protrusions 10 is at least two, and the protrusions 10 are uniformly distributed around the circumference direction of the sliding component 6, and each protrusion 10 corresponds to a sliding groove. The projection 10 is provided to greatly facilitate smooth sliding of the sliding member 6 and to prevent the sliding member 6 from rotating.

In a preferred embodiment, in addition to the above-described embodiment, a shutter 11 for blocking the sliding member 6 is further provided at the opening of the suction portion 3. The slide member 6 is blocked by the shutter 11 from falling out of the opening of the suction portion 3.

In a preferred embodiment, in addition to the above, the baffle 11 is provided at an end of the chute.

In a preferred embodiment, in addition to the above-mentioned embodiment, a notch 12 is further provided at the opening of the suction portion 3, and when the sliding member 6 slides to the notch 12, the notch 12 communicates with spaces on both sides of the sliding member 6. When the patient inhales all inhalants, the sliding part 6 slides to the opening of the inhalation part 3 and is blocked by the baffle 11, the patient still inhales at the state of inhaling at this time, and the arrangement of the notch 12 enables the air behind the sliding part 6 to be smoothly inhaled by the patient, so that 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 mode, the baffle 11 is further located at an upper half portion of an opening of the suction portion 3.

In a preferred embodiment, in addition to the above-mentioned manner, the notch 12 is located in a lower half of the opening of the suction portion 3, which is not shown in the figure. Although the medicament is in an aerosol state, the medicament still has a larger density compared with air, so in the scheme, the gap 12 is arranged at the lower part, and when the subsequent air passes through the gap 12, the inhalant at the sliding part 6 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-mentioned embodiment, the sliding member 6 is a plate, and the width of the gap between the sliding member 6 and the inner wall of the cylinder 2 is matched with the thickness of the sliding member 6, so that the sliding member 6 cannot be turned inside the cylinder 2. In this embodiment, the sliding member 6 is a thin plate made of a lightweight material, for example, a thin plastic plate, and ensures smooth sliding with the inhalant.

In addition to the above embodiment, as shown in fig. 7, the suction nozzle 17 has a hollow cylindrical structure with both ends open.

Example 2, as shown in figures 7 and 8,

an inhalation device for monitoring inhalation volume of an inhalant device, based on any of the embodiments 1, further comprising a reset means 13 disposed on the sliding means 6, wherein the sliding means 6 is returned from the end position Z to the initial position Y by the reset means 13. In this way, the sliding part 6 is convenient to reset, and the patient can use the sliding part for the next time.

As a preferable scheme, the reset component 13 is a pull rope, one end of the pull rope is connected with the sliding component 6, and the other end of the pull rope penetrates through the through hole 4 of the cylinder 2 and is located outside the cylinder 2. When the reset component 13 needs to be reset, the pull rope is pulled.

In a preferred embodiment, in addition to the above-mentioned embodiment, the cord is an elastic cord having elasticity, a fixing portion 14 is provided on an outer wall of the cylindrical body 2, and the elastic cord and the fixing portion 14 are detachably connected. When the elastic pull rope is used as the reset component 13, the device is suitable for patients needing breathing training, when the device is used, the proper position of the elastic pull rope is fixed on the fixing part 14, 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, the pulling force applied by the elastic pull rope is increased along with the movement of the sliding component 6, when the sliding part reaches a certain position, the patients exhale, the sliding component 6 serves, and the operation is repeated, so that the breathing training and the vital capacity exercise are realized; and the position that the elastic pull rope is connected with the fixing part 14 can be adjusted according to the actual condition and the rehabilitation stage of the patient, and the elastic pull rope provides the pulling force with different strengths so as to adapt to the training requirements of different breathing depths.

As another preferred scheme, a blocking ring 15 is detachably arranged in the cylinder 2, and the blocking ring 15 is used for blocking the sliding component 6. The arrangement of the stop ring 15 stops the sliding component 6 reaching a certain position, so that the breathing depth is consistent every time, and a good training effect is ensured.

As a further solution, the position of said blocking ring 15 is adjustable. The position of the blocking ring 15 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.

In a preferred embodiment, in addition to the above-mentioned mode, a sealing head is detachably connected to the spraying hole 5. The head is used for sealing spout medicine hole 5, when suction device was used for patient's arc to take off from the inhalant device, then adopts the head shutoff to spout medicine hole 5, so, further made things convenient for the use.

As another preferred embodiment, based on the above mode, further, the reset component 13 is a push rod, one end of the push rod is connected to the sliding component 6, and the other end of the push rod penetrates through the through hole 4 and is located outside the cylinder 2. In this scheme, through-hole 4 set up to realize that barrel 2 keeps away from 3 open-ended one ends of suction inlet and outside atmosphere intercommunication, simultaneously, set up reset unit 13 to the push rod that can promote sliding part 6, to stupor patient, unconscious patient and breathe inefficiently, be difficult to the patient of autonomic inhalation, this scheme of adoption, when using, medical personnel or accompanying person can promote sliding part 6 through the push rod and realize supplementary medicine that supplies.

As a further preferable technical solution, the push rod and the through hole 4 are in clearance fit. The gap between the push rod and the through hole 4 can conveniently ensure that the gas at the rear can be smoothly supplemented when the sliding component 6 slides towards the opening end of the suction part 3, thereby ensuring the smooth movement of the sliding component 6

Example 3, as shown in figures 1-8,

an inhalation device for an inhaler device for monitoring the volume of inhalation,

on the basis of any of the embodiments 1 or 2, further, the inhalation device further comprises a threshold switch 16, the threshold switch 16 has a braking state and an opening state, the threshold value of the threshold switch 16 is matched with the negative pressure value generated in the inhalation part 3 when the patient inhales the inhalation part 3,

when the threshold switch 16 is in the brake state, the medicine is blocked and the medicine cannot be 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 section 3 is equal to or greater than the threshold value, the threshold switch 16 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 section 3.

In the scheme of the embodiment, when in use, before a patient inhales through the inhalation part 3, the threshold switch 16 is set in a braking state, the patient inhales through the inhalation part 3, negative pressure is formed in the inhalation part 3, when the value of the negative pressure is lower than the threshold value of the threshold switch 16 in the initial stage of inhalation, and the threshold switch 16 is in the braking state, the medicament cannot be inhaled by the patient, along with the progress of inhalation 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 16, at the moment, the threshold switch 16 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, namely, the negative pressure formed in the lung of the patient is higher, at 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 16 is reset to the braking state, and the next drug inhalation operation can be performed.

In a preferred embodiment, in addition to the above-mentioned mode, the threshold value of the threshold value switch 16 is adjustable. For patients with a strong body and normal or better lung capacity, the threshold value of the threshold value switch 16 can be properly increased, so that the inhaled medicament can more fully enter the lung and the deep part of the lung, and a better treatment effect is realized; for weak patients or children with weak lung capacity, the threshold value of the threshold value switch 16 can be properly reduced, and the negative pressure generated by inhalation of the part of patients can ensure that the threshold value switch 16 is switched from the brake state to the open state to realize the inhalation of the medicament; in particular, in some special cases, the threshold value of the threshold value can be even adjusted to 0, so that the resistance of the patient to inhale the medicament is further reduced, and the medicament can be ensured to be inhaled.

In a preferred embodiment, in addition to the above, the threshold switch 16 is used to control the sliding of the sliding member 6 along the inside of the cylinder 2, and when the negative pressure between the sliding member 6 and the opening of the suction portion 3 is equal to or greater than a threshold value, the threshold switch 16 is switched from the braking state to the opening state, and the sliding member 6 moves toward the opening of the suction portion 3.

In the scheme, a sliding part 6 is arranged in a barrel body 2, a threshold value switch 16 is used for braking the sliding part 6, in the initial stage of inhalation of a patient, the negative pressure value in the barrel body 2 is smaller than the threshold value of the threshold value switch 16, the sliding part 6 does not slide under the braking of the threshold value switch 16, a medicament cannot be inhaled by the patient, when the negative pressure braking in the barrel body 2 is equal to or larger than the threshold value of the threshold value switch 16, the sliding part 6 is separated from the threshold value switch 16 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 inhalation is completed, or before the next inhalation, the sliding part 6 is reset to be matched with the threshold value switch 16, and the next inhalation can be carried out;

furthermore, in the conventional inhalant storage tank 7, a metering valve is provided on the spray tube, and when the spray tube is pressed, a certain amount of medicine is sprayed from the spray tube, in the present embodiment, before the medicine storage tank 7 is pressed, the sliding member 6 is engaged with the threshold switch 16, the spray port is positioned between the sliding member 6 and the opening of the inhalation portion 3, and after the medicine is sprayed, the mouth of the patient inhales the medicine in the medicine chamber 8, and the sliding member 6 slides toward the mouth of the patient, and when the sliding member 6 slides to the opening of the inhalation portion 3, it indicates that the medicine in the medicine chamber 8 is completely inhaled by the patient, and if the sliding member 6 stays in the cylinder 2, it indicates that the part of the inhalant between the opening positions of the sliding member 6 and the inhalation portion 3 is not inhaled by the patient, so that the actual inhalation amount of the inhaled medicine by the patient can be estimated by the position of the sliding member 6, further facilitating the monitoring of the medication of medical care personnel and guardians.

In a preferred embodiment, in addition to the above-mentioned embodiment, the threshold value of the threshold switch 16 is-8 kPa to-3 kPa.

Preferably, the threshold switch 16 is an elastic flap 18 disposed in the barrel 2, and when the negative pressure in the medicine chamber 8 reaches the threshold value of the threshold switch 16, the elastic flap 18 deforms to ensure that the sliding member 6 can move toward the opening of the inhalation part 3 through the elastic flap. In this scheme, match the elasticity coefficient of elastic component and set threshold value, ensure that the patient breathes in, when making the interior negative pressure of medicament chamber 8 reach the threshold value, sliding member 6 can be smooth through the elastic sheet towards the realization of inhaling the removal of portion 3 direction and supplying medicine.

As another preferable scheme, the threshold switch 16 includes a blocking member 19 and a spring 20, a groove 21 is provided on the inner wall of the cylinder 2, the blocking member 19 is disposed in the groove 21, the spring 20 is disposed between the groove 21 and the blocking member 19, and a side of the blocking member 19 facing away from the inhalation portion 3 is a slope surface. In this mode, in the state that the blocking member 19 is not pressed, a part of the blocking member 19 extends out of the inner wall of the cylinder 2, and at this time, the blocking member 6 is blocked, in the present embodiment, the elastic coefficient of the spring 20 is matched with a set threshold value, so that the patient can inhale, when the negative pressure in the medicine cavity 8 reaches the threshold value, the pressure applied to the blocking member 19 by the sliding member 6 can enable the blocking member 19 to be compressed into the groove 21, and further move towards the inhalation part 3, so as to realize medicine supply.

In a preferred embodiment, in addition to the above-described embodiment, a side of the stopper 19 facing the suction unit 3 is formed into a slope. This further facilitates resetting of the slide member 6. In the solution of the present embodiment, the slope on the blocking element 19 ensures: when the blocking member 19 is not under pressure, at least a portion of the ramp is located in the groove 21 to ensure that the sliding member 6 pushes the blocking member 19 smoothly.

As a preferable embodiment, in addition to the above manner, further, an adjusting block 22 is movably connected in the groove 21, one end of the spring 20 facing the inside of the cylinder 2 is connected with the blocking member 19, and the other end is connected with the adjusting block 22.

In a preferred embodiment, in addition to the above manner, the adjusting block 22 is further in threaded fit with the groove 21. The end of the adjusting block 22 facing away from the spring 20 is provided with a cross blind hole. The arrangement of the cross blind hole is convenient for being matched with a screwdriver to realize the adjustment of the position of the adjusting block 22. The spring 20 is pushed by adjusting the position of the adjusting block 22, so that the height of the blocking piece 19 protruding out of the inner wall of the cylinder 2 is adjusted, the higher the height is, the harder the sliding component 6 pushes the blocking piece 19, and thus, the length of the adjusting block 22 extending into the groove 21 is adjusted, namely, the threshold value of the threshold value switch 16 is adjusted.

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 (9)

1. An inhalation device for an inhaler device for monitoring the amount of inhaled medicament, said inhalation device being adapted for use with an inhaler device, said inhalation device comprising sensing means for indicating the amount of medicament inhaled by a patient;

the suction device comprises a hollow cylinder body, one end of the cylinder body is provided with an opening to form a suction part, the other end of the cylinder body is provided with a through hole, the cylinder body is also provided with a medicine spraying hole matched with a medicine spraying opening of the inhalant device, a medicine cavity communicated with the suction part and the medicine spraying hole is formed in the cylinder body,

the detection part comprises a sliding part which is arranged in the barrel in a sliding way, the sliding part is in clearance fit or sealing fit with the side wall of the barrel, and when a patient inhales the medicament in the medicament cavity from the inhalation part, the position of the sliding part changes along with the change of the medicament inhaled quantity of the patient;

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 electrodes may be,

the threshold switch comprises a blocking piece and a spring, a groove is formed in the inner wall of the barrel, the blocking piece is arranged in the groove, the spring is arranged between the groove and the blocking piece, and a slope is formed in one side, deviating from the suction portion, of the blocking piece.

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

3. The inhalation device according to claim 2 wherein said sliding member has an initial position within said cartridge at the end of said cartridge remote from said inhalation portion and an end position at the end of said cartridge at the opening of said inhalation portion, said spray orifice being located between said initial and end positions.

4. An inhalation device according to any of claims 1 to 3, wherein a viewing window is provided in the barrel corresponding to the medicament chamber, said viewing window being made of a transparent material.

5. An inhalation device according to any one of claims 1 to 3, wherein a projection is provided on said sliding member, and a slide groove is provided on an inner wall of said cylinder in a direction in which said sliding member slides and engages with said projection, said projection and said slide groove being in sliding engagement.

6. The inhalation device according to claim 5, wherein a shutter for blocking said sliding member is further provided at the opening of said inhalation portion.

7. The inhaler according to claim 6, wherein a notch is further provided at the opening of the inhalation portion, the notch communicates spaces on both sides of the sliding member when the sliding member slides to the notch, and the baffle is located at an upper half portion of the opening of the inhalation portion or at a lower half portion of the opening of the inhalation portion.

8. The inhalation device according to claim 7 wherein a reset member is further provided on the sliding member, the reset member is used to return the sliding member from the end position to the initial position, the reset member is a pull rope, one end of the pull rope is connected to the sliding member, the other end of the pull rope passes through the through hole of the cylinder and is located outside the cylinder, the pull rope is an elastic pull rope having elasticity, a fixing portion is provided on the outer wall of the cylinder, and the elastic pull rope and the fixing portion are detachably connected.

9. The inhalation device according to claim 8 further comprising a threshold switch having an off state and an on state, the threshold of the threshold switch matching the level of negative pressure generated in the inhalation portion when the patient inhales on the inhalation portion,

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.

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