CN112807531A - Mist storage tank and inhalation device - Google Patents

Abstract

The invention discloses a mist storage tank and an inhalation device. The mist storage tank comprises a base sleeve, a base, a mist storage tank main body and a suction cap which are sequentially communicated from bottom to top, wherein a mist inlet is formed in the bottom of the base and used for being connected with an aerosol spraying connector, and the mist inlet is provided with a mist inlet wall; the top of the suction cap is provided with an air suction port for the mouth to suck; the base sleeve is tightly attached to the outer wall and the bottom end face of the base and the wall of the mist inlet, one part of the base sleeve extends towards the inside of the mist inlet to form an extending part, and the other part of the base sleeve continues to extend upwards along the wall of the mist inlet to form a first attaching part; the inner edge of the extension part extends upwards to form a second attaching part; the first fitting portion and the second fitting portion are arranged to be capable of tightly wrapping the aerosol spray interface. The mist storage tank can be connected with various aerosol spraying interfaces, and the loss of the medicine can be reduced.

Description

Mist storage tank and inhalation device

Technical Field

The invention relates to a mist storage tank and an inhalation device.

Background

The aerosol canister is an aid to metered dose aerosol (MDI) inhalation therapy for storing the aerosol. When atomized medicine particles sprayed by the quantitative spraying agent pass through the fog storage tank, the medicine particles and air in the tank are fully mixed and then inhaled by a patient.

CN209075743U discloses a mist storage tank, which comprises a tank body, a suction nozzle and a face mask, wherein the tank body comprises an upper tank body and a lower tank body which are detachably connected along the length direction bisecting plane, a groove is arranged on the connection surface of the upper tank body and the lower tank body, and a convex ridge is arranged on the connection surface of the lower tank body and the upper tank body. The outer surface of the upper tank body is provided with a quantitative aerosol interface, the quantitative aerosol interface is positioned in the middle of the tank body in the length direction, and an aerosol channel in the quantitative aerosol interface is vertical to the axis direction of the tank body; one end of the tank body is in threaded connection with the rear end cover, and the other end of the tank body is sequentially connected with the connecting ring, the suction nozzle and the face cover; the connecting ring is internally provided with a one-way valve (namely a one-way valve), the inner ring surfaces at the two ends of the connecting ring are respectively provided with threads which are respectively in threaded connection with the large end of the funnel-shaped suction nozzle and one end of the tank body, and the outer ring surface of the connecting ring is provided with threads which are in threaded connection with the mask. This storage tank is only equipped with the check valve in the go-between, carries out the fog inhalation when the patient, and the check valve is opened, and the atomizing medicine granule passes through the check valve and gets into jar body, and the patient bites the suction nozzle and absorbs the medicine granule can. However, when a patient exhales, the tank body and the mask are not provided with the exhaust holes, the patient needs to take off the mask to exhale, so that the patient cannot continuously exhale and inhale, and a lot of medicine particles are often accompanied in the exhaled gas, which results in large medicine loss and low utilization rate. The quantitative aerosol interface connected with the quantitative aerosol is positioned in the middle of the tank body in the length direction, the interface is of a rectangular structure and can only be connected with the quantitative aerosol with a structure matched with the interface, the application range of the aerosol storage tank is limited, and the quantitative aerosol interface is not tightly connected with the quantitative aerosol, so that the dispersion of medicine particles is easily caused.

CN203724572U discloses a novel medical storage fog jar of infant, including storing up the fog room, connecting store up fog room open-top's top cap and connect the base in storing up the fog room bottom, base central part is equipped with the through-hole, still be equipped with the whistle of breathing in of sound production through gaseous entering on the base, be equipped with one-way inspiratory valve on the top cap, the top cap still is connected with the face guard, and the face guard is equipped with expiratory vent in the position that corresponds the nose, and expiratory vent department is equipped with the expiratory valve and the whistle of breathing out of one-way circulation. Although this storage tank is equipped with the exhaling mouth on the face guard, the air current that makes infant patient's exhaling can discharge through the exhaling mouth of face guard, because the face guard does not directly contact in with the oral cavity, and in addition infant patient exhales the breathing operation unskilled, unable coherent exhale and inhale the action, often can be accompanied with a lot of atomizing particles in the gas of exhaling, cause the medicine extravagant, the low-usage. The through hole communicated with the quantitative aerosol inhaler on the base of the mist storage tank is long-strip-shaped and can only be connected with the quantitative aerosol inhaler matched with the structure of the mist storage tank, so that the application range of the mist storage tank is limited,

in summary, the conventional aerosol storage can in the above patent documents can only be used in connection with a part of the metered dose aerosol, which limits the application range, and has the disadvantages of large drug loss, low utilization rate and low delivery amount.

Disclosure of Invention

One object of the present invention is to provide a mist storage tank which can be connected to various aerosol spray interfaces, has a wide application range, and can reduce the loss of medicine and improve the utilization rate of the medicine.

It is another object of the present invention to provide an inhalation device.

The purpose of the invention is realized by the following technical scheme.

On one hand, the invention provides a mist storage tank, which comprises a base sleeve, a base, a mist storage tank main body and a suction cap which are sequentially communicated from bottom to top, wherein the bottom of the base is provided with a mist inlet for connecting an aerosol spraying interface, and the mist inlet is provided with a mist inlet wall; the top of the suction cap is provided with an air suction port for the mouth to suck; the base sleeve is tightly attached to the outer wall and the bottom end face of the base and the wall of the mist inlet, one part of the base sleeve extends towards the inside of the mist inlet to form an extending part, and the other part of the base sleeve continues to extend upwards along the wall of the mist inlet to form a first attaching part; the inner edge of the extension part extends upwards to form a second attaching part; the first fitting portion and the second fitting portion are arranged to be capable of tightly wrapping the aerosol spray interface.

According to the mist storage tank of the present invention, preferably, the plane of the extension portion is higher than the bottom end surface of the base.

According to the mist storage tank of the present invention, preferably, the extension is a crescent structure; the plurality of extending parts are symmetrically arranged inside the fog inlet;

the inner edges of the extension parts respectively extend upwards to form a plurality of second attaching parts;

the first attaching portion is plural.

According to the mist storage tank disclosed by the invention, preferably, the mist storage tank main body is of a spindle-shaped structure with a hollow interior, and comprises a cylinder body and an upper end cover which are clamped with each other from bottom to top, the bottom of the cylinder body is clamped with the base, and the top of the upper end cover is covered with the suction cap.

According to the mist storage tank disclosed by the invention, preferably, the top of the upper end cover is of a hollow structure; the hollow structure comprises a collection part positioned in the center of the hollow structure, a plurality of reinforcing ribs which extend from the collection part to the edge of the hollow structure and are symmetrically distributed, and a plurality of guide columns which are uniformly distributed along the circumferential direction of the edge of the hollow structure; and a vent hole is formed between every two adjacent reinforcing ribs, and the guide post is positioned in the vent hole.

According to the mist storage tank disclosed by the invention, preferably, the edges of the quincuncial gasket are connected, the interior of the quincuncial gasket is divided into a plurality of petals, and the size of each petal is set to be capable of covering the vent hole on the upper end cover; the quincuncial gasket is provided with a guide hole matched with the guide pillar, and the quincuncial gasket can penetrate through the guide pillar to cover the vent hole through the guide hole.

According to the mist storage tank of the invention, preferably, a plurality of convex ridges are longitudinally arranged on the inner side wall of the suction cap close to the upper end cover; inhale the cap cover in the top of upper end cover, just protruding stupefied sets up to be pressed on the outer fringe of plum blossom gasket.

According to the mist storage tank of the invention, preferably, the upper end cover is provided with a one-way valve on the outer side wall close to the suction cap, and the suction cap extends outwards and downwards out of the one-way valve cavity on the outer side wall close to the upper end cover; the one-way valve cavity is communicated with the air suction port, and the suction cap is arranged to cover the top of the upper end cover; the check valve cavity and the check valve are arranged to be capable of being buckled; the bottom of the unidirectional valve cavity is clamped with a cover plate for covering the unidirectional valve cavity; the cover plate is provided with an air hole, and the bottom surface of the cover plate is lower than the top end surface of the upper end cover; the thickness of the valve plate of the one-way valve is 0.1-0.6 mm.

The mist storage tank according to the present invention preferably further comprises a small cap configured to be capable of covering the suction port of the suction cap; the outer side wall of the suction cap close to the upper end cover is provided with a convex column, and the outer side wall of the small cap is provided with a connecting piece; one end of the connecting piece is connected with the small cap, and the other end of the connecting piece is sleeved on the convex column.

In another aspect, the present invention provides an inhalation device, comprising the above-mentioned mist storage tank and an aerosol apparatus having an aerosol spray interface, wherein the mist inlet of the mist storage tank is in butt joint with the aerosol spray interface of the aerosol apparatus.

The mist storage tank comprises a base sleeve at a mist inlet of the base, and an opening formed by the extension part of the base sleeve at the mist inlet is connected with various aerosol spraying interfaces, so that the application range of the mist storage tank is expanded. In addition, the aerosol spraying interface is closely included by extension, first laminating portion, the second laminating portion of base cover after inserting into the fog inlet, has prevented that the medicine granule from entering fog inlet department dispersion, has reduced the loss of medicine, has improved the utilization ratio of medicine.

The mist storage tank is simple in structure, the one-way valve on the suction cap is equivalent to an expiration one-way diaphragm, the plum blossom gasket is equivalent to an inspiration one-way diaphragm, and the two are matched for use, so that the breath of a patient is more efficient and smoother, and the time of inhalation therapy is shortened. When the patient exhales, the plum blossom gasket is closed, the medicine granules in the mist storage tank main body can not be influenced, the utilization rate of the medicine is improved, and the waste of the medicine is reduced.

The components of the mist storage tank are simple to connect, and the mist storage tank is convenient to disassemble, clean, disinfect and reuse, avoids cross infection, and is convenient to carry and store after being disassembled.

Drawings

Fig. 1 is a schematic structural view of a mist storage tank according to the present invention.

Fig. 2 is an exploded view of a mist storage tank of the present invention.

Fig. 3 is a schematic front view of a base of a mist storage tank according to the present invention.

Fig. 4 is a schematic view of a back structure of a base of a mist storage tank according to the present invention.

Fig. 5 is a schematic structural view of an upper end cover of a mist storage tank according to the present invention.

Fig. 6 is a schematic structural view of a suction cap of a mist storage tank according to the present invention.

Fig. 7 is a schematic structural view of a quincuncial gasket of a mist storage tank according to the present invention.

The reference numerals are explained below:

1-base sleeve, 2-base, 3-barrel, 4-upper end cover, 41-gathering part, 5-plum blossom gasket, 6-suction cap, 61-one-way valve cavity, 7-small cap, 8-extending part, 81-first attaching part, 82-second attaching part, 9-guide pillar, 10-reinforcing rib, 11-vent hole, 12-one-way valve, 13-cover plate, 14-connecting piece, 15-convex column, 16-guide hole, 17-convex ridge, 18-air hole and 19-valve plate.

Detailed Description

The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.

Mist storage tank

The mist storage tank comprises a base sleeve, a base, a mist storage tank main body and a suction cap which are sequentially communicated. The plum blossom gasket is arranged in the mist storage tank main body. In a normal assembly state, the base sleeve, the base, the mist storage tank main body and the suction cap are sequentially arranged from bottom to top. In some embodiments, the mist storage tank of the present invention comprises a base sleeve, a base, a mist storage tank main body and a suction cap, which are sequentially communicated from bottom to top.

Base seat

The bottom of the base is provided with a mist inlet which is used for connecting an aerosol spraying port. The mist inlet has a mist inlet wall. The shape of the inlet port may match the shape of the aerosol spray mouthpiece. In a preferred embodiment, the mist inlet is circular. The base has an outer wall and a bottom end face that are joined together. The fog inlet wall is arranged opposite to the outer wall and is connected with the end face of the bottom. The projection of the contour of the wall of the mist inlet in the horizontal plane falls within the projection of the contour of the outer wall in the horizontal plane. The bottom end surface is formed between the projection of the outline of the fog inlet wall on the horizontal plane and the projection of the outline of the outer wall on the horizontal plane. The projection of the contour of the wall of the mist inlet in the horizontal plane and the projection of the contour of the outer wall in the horizontal plane may be of the same shape, for example both circular. The bottom end surface may be annular.

Base cover

The base sleeve is tightly attached to the outer wall and the bottom end face of the base and the mist inlet wall. Therefore, the sealing performance of the joint part of the mist storage tank main body and the aerosol spraying interface can be improved. One part of the base sleeve extends towards the interior of the fog inlet to form an extending part, and the other part of the base sleeve continues to extend upwards along the wall of the fog inlet to form a first attaching part; the inner edge of the extension part extends upwards to form a second attaching part; the first fitting portion and the second fitting portion are arranged to be capable of tightly wrapping the aerosol spray interface. This further improves the sealing of the junction between the main body of the reservoir and the aerosol spray mouthpiece. The extension is preferably a crescent shaped structure.

In certain embodiments, the extension is a plurality of extensions symmetrically disposed inside the mist inlet; the inner edges of the extension parts respectively extend upwards to form a plurality of second attaching parts; the inner edge of the extension part extends upwards to form a plurality of second attaching parts. According to one embodiment of the invention, one part of the base sleeve extends towards the interior of the fog inlet to form two oppositely arranged extending parts, the other part of the base sleeve continues to extend upwards along the wall of the fog inlet to form two first attaching parts, and the inner edges of the two extending parts respectively extend upwards to form two second attaching parts. The extension part can be crescent structure, and the symmetry sets up the inside at the fog inlet.

The plane of the extension part is higher than the bottom end surface of the base when the mist storage tank is observed from the front surface. The height difference between the two is not particularly limited, and is, for example, 0.1 to 3mm, preferably 0.2 to 2mm, and more preferably 0.3 to 1 mm.

Main body of mist storage tank

The main body of the mist storage tank is of a hollow structure, the middle of the tank is large, and the two ends of the tank are small. The shape of the mist storage tank main body is not particularly limited, and may be pear-shaped, tubular, oval, spindle-shaped, or the like, and preferably is spindle-shaped. According to one embodiment of the invention, the mist storage tank body has a spindle-shaped structure with a hollow interior. Atomized medicine particles are sprayed out through the aerosol spraying interface and are sprayed into the mist storage tank main body through the mist inlet, at the moment, the speed of the atomized medicine particles entering the mist storage tank main body is high, and if the atomized medicine particles are directly sprayed into the mouth of a patient, the atomized medicine particles easily impact the mouth of the patient and cause cough. Because the oral cavity volume is limited, most of the medicine particles sprayed into the oral cavity are remained on the surface of the oral cavity, so that a large amount of medicine is wasted, and streptococcus infection in the oral cavity is easily caused. The spindle-shaped mist storage tank main body structure is selected, and the middle part of the spindle-shaped mist storage tank main body structure is provided with a larger mist storage space, so that a large number of atomized medicament particles are prevented from directly entering the oral cavity of a patient and impacting the oral cavity, and the residue of the medicament particles in the oral cavity is reduced. And due to the special spindle-shaped structure, the medicine particles are not easy to contact with the inner wall of the mist storage tank main body, so that the adhesion of the medicine particles on the inner wall is avoided or reduced, and the medicine utilization rate is improved.

The mist storage tank main body comprises a cylinder body and an upper end cover which are sequentially arranged from bottom to top. The barrel and the upper end cover are mutually clamped. The bottom of the barrel is clamped with the base, and the top of the upper end cover is provided with the suction cap. Set up storage tank main part into barrel and the upper end cover of mutual joint, firstly sealed effectual, secondly conveniently dismantle the medicine of wasing on attaching to the inner wall. The barrel and the base are clamped, so that the barrel and the base are convenient to disassemble and clean.

The cylinder body of the invention is of a hollow structure. The upper part is larger and the lower part is smaller.

The top of the upper end cover is of a hollow structure. The hollow structure comprises a collection part, a plurality of reinforcing ribs and a plurality of guide pillars. The collection part is positioned in the center of the hollow structure. The reinforcing ribs extend from the collecting part to the edges of the hollow structures. The plurality of reinforcing ribs are symmetrically distributed. And a plurality of guide pillars are arranged along the edge of the hollow structure. Preferably, a plurality of guide pillars are uniformly distributed along the circumferential direction of the edge of the hollowed-out structure. And a vent hole is formed between every two adjacent reinforcing ribs. The guide post is positioned in the vent hole. And the guide post protrudes upwards when the front side of the fog storage tank is observed, so that the plum blossom-shaped gasket is convenient to fix.

In some embodiments, the hollow structure comprises a collection portion located at the center of the hollow structure; the reinforcing ribs extend from the collecting part to the edges of the hollow structures and are symmetrically distributed, and the guide columns are uniformly distributed along the circumferential direction of the edges of the hollow structures; and a vent hole is formed between every two adjacent reinforcing ribs, and the guide post is positioned in the vent hole. According to one embodiment of the invention, the hollow structure comprises a collection part positioned in the center of the hollow structure, 4-16 reinforcing ribs, preferably 6-12 reinforcing ribs and more preferably 6-8 reinforcing ribs, which extend from the collection part to the edges of the hollow structure and are symmetrically distributed, and 4-16 guide pillars, preferably 6-12 guide pillars and more preferably 6-8 guide pillars, which are uniformly distributed along the circumferential direction of the edges of the hollow structure; and a vent hole is formed between every two adjacent reinforcing ribs, and the guide post is positioned in the vent hole.

Plum blossom gasket

The plum blossom-shaped gasket is connected at the edges and internally divided into a plurality of petals. The flap is set to cover the vent hole on the upper end cover; the quincuncial gasket is provided with a guide hole matched with the guide pillar, and the quincuncial gasket can penetrate through the guide pillar to cover the vent hole through the guide hole. Preferably, the outer contour of the quincuncial washer is circular. The edges of the upper end cover are connected, the inner part of the upper end cover is divided into a plurality of approximately triangular flaps, and the size of each flap can just cover the vent hole in the upper end cover. The number of the guide holes is the same as that of the guide posts. The number of the guide holes can be 4-16, preferably 6-12, and more preferably 6-8.

The plum blossom-shaped gasket can be made of flexible elastic materials such as thermoplastic elastomer (TPE), silica gel, thermoplastic polyurethane elastomer (TPU), rubber and the like. The plum blossom-shaped gasket is easy to open and reset by the material, so that the breath holding phenomenon of a patient caused by oxygen deficiency can be reduced, and the patient can breathe smoothly.

The adoption guide pillar and the protruding stupefied mode of fixing the plum blossom gasket of cooperation can prevent that the plum blossom gasket from opening or droing from the upper end cover when closing along with respiratory. The quincuncial gasket has one-way conductivity, namely, the fog storage tank can only be closed and opened towards the direction of the suction cap, and cannot be opened reversely.

Suction cap

The top of the suction cap is provided with an air suction port for sucking atomized medicine particles from a mouth part. A plurality of convex ridges are longitudinally arranged on the inner side wall of the suction cap close to the upper end cover; inhale the cap cover in the top of upper end cover, just protruding stupefied sets up to be pressed on the outer fringe of plum blossom gasket. In some embodiments, a plurality of ribs are uniformly distributed on the inner side wall close to the upper end cover along the longitudinal direction. Thus, the quincuncial gasket can be further fixed. The number of the convex ridges can be 6-16, preferably 7-15, and more preferably 9-12.

The upper end cover and the suction cap are connected together by ultrasonic welding, bonding, screwing and the like, and the ultrasonic welding is preferred. Ultrasonic welding is performed by transmitting high-frequency vibration waves to the upper end cap and the surface of the suction cap, and the surfaces of two objects are rubbed against each other under pressure to form fusion between molecular layers. The ultrasonic welding has the advantages of high welding speed and high welding strength, welding material melting is not needed, and the sealing performance between the welded upper end cover and the suction cap is good. Therefore, the quincuncial gasket between the upper end cover and the suction cap can be protected from being damaged.

Check valve and check valve cavity

The outer side wall of the upper end cover, which is close to the suction cap, is provided with a one-way valve, and the suction cap extends outwards and downwards to form a one-way valve cavity on the outer side wall of the upper end cover; the one-way valve cavity is communicated with the air suction port, and the suction cap is arranged to cover the top of the upper end cover; the check valve cavity and the check valve are arranged to be capable of being buckled; the bottom of the unidirectional valve cavity is clamped with a cover plate for covering the unidirectional valve cavity; the cover plate is provided with an air hole, and the bottom surface of the cover plate is lower than the top end surface of the upper end cover; the thickness of the valve plate of the one-way valve is 0.1-0.6 mm.

The one-way valve is placed in the one-way valve cavity to prevent the one-way valve from being damaged. The one-way valve cavity is communicated with the air suction port, and the bottom of the one-way valve cavity is provided with an air hole. When the patient exhales, the check valve is opened, the air pressure in the mist storage tank main body is greater than the external atmospheric pressure, so that the plum blossom gasket between the mist storage tank main body and the inhalation cap is closed, the air is discharged from the air hole through the check valve, the atomized medicine particles in the mist storage tank main body can be reserved, and the medicine particles cannot be discharged into the air along with the patient exhalation. Thus effectively reducing the waste of the medicine particles and saving the treatment cost.

The thickness of a valve plate of the one-way valve is 0.1-0.6 mm, preferably 0.2-0.4 mm, and more preferably 0.2 mm. The valve plate is set to be in the thickness range, so that the opening and closing sensitivity of the valve plate is improved, and the valve plate of the one-way valve can still be opened even if the breath of the patient exhales is weak; when the patient inhales, the valve plate of the one-way valve is closed rapidly.

Small cap

The mist storage canister of the present invention may also include a small cap. The small cap is arranged to cover the air suction port of the suction cap; the outer side wall of the suction cap close to the upper end cover is provided with a convex column, and the outer side wall of the small cap is provided with a connecting piece; one end of the connecting piece is connected with the small cap, and the other end of the connecting piece is sleeved on the convex column. The small cap is covered on the air suction port, so that the cleanness of the air suction port is kept, bacteria breeding is prevented, and the infection rate of the oral cavity is reduced. The connecting piece structure enables the small cap to be connected with the suction cap, and when a patient uses the mist storage tank, the patient only needs to take off the small cap without worrying about losing the small cap.

Inhalation device

The inhalation device comprises the mist storage tank and the aerosol equipment with the aerosol spray interface, wherein the mist inlet of the mist storage tank is butted with the aerosol spray interface of the aerosol equipment. The aerosol spraying interface is inserted into the fog inlet, and the base sleeve is arranged to tightly wrap the aerosol spraying interface. For the inhalation device, the breath is more efficient and smooth, the medicine loss is reduced, and the medicine utilization rate is improved.

Example 1

FIG. 1 is a schematic view of a mist storage tank according to the present invention; FIG. 2 is an exploded view of a mist storage tank of the present invention; FIG. 3 is a schematic front view of a base according to the present invention; FIG. 4 is a schematic diagram of a back structure of a base according to the present invention; FIG. 5 is a schematic structural view of an upper end cap according to the present invention; FIG. 6 is a schematic structural view of a suction cap according to the present invention; fig. 7 is a schematic structural view of a quincuncial gasket of the present invention.

As shown in fig. 1, the mist storage tank of the present embodiment includes a base 2, a mist storage tank main body, and a suction cap 6, which are sequentially communicated from bottom to top, and the bottom of the base 2 is provided with a mist inlet for connecting an aerosol spray port. The fog inlet is round and is provided with a fog inlet wall. The top of the suction cap 6 is provided with an air suction port for sucking the medicine particles from the mouth.

The mist storage tank main body is of a spindle-shaped structure with a hollow interior, the middle part of the mist storage tank main body is provided with a large mist storage space, and a large amount of atomized medicament particles are prevented from directly entering the oral cavity of a patient, so that the residue of the medicament particles in the oral cavity is reduced. Due to the special spindle-shaped structure, the medicine particles are not easy to contact with the inner wall of the mist storage tank main body, so that the adhesion of the medicine particles on the inner wall is reduced and even avoided, and the medicine utilization rate is improved.

As shown in fig. 1 and 2, the mist storage tank main body comprises a barrel body 3 and an upper end cover 4 which are clamped with each other from bottom to top, the bottom of the barrel body 3 is clamped with the base 2, and the top of the upper end cover 4 is covered with a suction cap 6. Preferably, the upper end cap 4 and the suction cap 6 are coupled together by ultrasonic welding. The mist storage tank main body with the structure is good in sealing effect and convenient to detach. Set up barrel 3 and base 2 into the joint, conveniently dismantle the washing. The upper end cover 4 and the suction cap 6 are ultrasonically welded together, so that the quincuncial gasket 5 can be prevented from being damaged.

As shown in fig. 3 and 4, the mist storage tank of the present embodiment further includes a base sleeve 1, and the base sleeve 1 is tightly attached to the outer wall and the bottom end surface of the base 2 and the wall of the mist inlet. A part of the base sleeve 1 extends towards the interior of the fog inlet to form two oppositely arranged extending parts 8. The other part of the base sleeve 1 continues to extend upwards along the mist inlet wall to form a first attaching part 81. The extension part 8 is located on a plane higher than the bottom end surface of the base 2 when viewed from the front of the mist storage tank. The extension part 8 is of a crescent structure and is symmetrically arranged inside the mist inlet. The inner edges of the two extending portions 8 extend upward to form second fitting portions 82, respectively, when viewed from the front of the mist storage tank. When the aerosol spray interface is inserted into the fog inlet, the base sleeve 1 tightly wraps the aerosol spray interface, so that atomized medicine particles are prevented from overflowing from the fog inlet. The base cover 1 may be a thermoplastic rubber formed part that can be coupled to the base 2 by way of encapsulation.

As shown in fig. 5, the top of the upper end cap 4 is a hollow structure. The hollow structure comprises a collection part 41 positioned in the center of the hollow structure, a plurality of reinforcing ribs 10 (for example, 6 reinforcing ribs) which extend from the collection part 41 to the edges of the hollow structure and are symmetrically distributed, and a plurality of guide pillars 9 (for example, 6 reinforcing ribs) which are uniformly distributed along the circumferential direction of the edges of the hollow structure. And a vent hole 11 is formed between two adjacent reinforcing ribs 10. The guide post 9 is positioned in the vent hole 11. The guide posts 9 protrude upwards as seen from the front of the tank.

As shown in fig. 7, the outer contour of the quincunx washer 5 is circular. The edges of the two are connected, and the interior of the two is divided into a plurality of approximately triangular petals (for example, 6). The flap is sized to cover the vent hole 11 in the upper end cap 4. The quincuncial gasket 5 is provided with a guide hole 16 matched with the guide post 9. The quincuncial gasket 5 passes through the guide post 9 through the guide hole 16 to cover the vent hole 11.

As shown in fig. 6, a plurality of ribs 17 (e.g. 9 ribs) are uniformly distributed on the inner side wall of the suction cap 6 close to the upper end cover 4 along the longitudinal direction. The suction cap 6 covers the top of the upper end cover 4. The convex edge 17 presses on the outer edge of the quincuncial gasket 5. This arrangement prevents the quincuncial gaskets 5 from falling off the upper end cap 4 when opened or closed during breathing. The quincuncial gasket 5 has one-way conductivity, namely, the fog storage tank can only be closed and opened towards the direction of the suction cap 6, and the fog storage tank can not be opened in the reverse direction. The plum blossom gasket 5 can be a component made of elastic material, so that the opening and resetting of the petals are convenient, and the breath holding phenomenon of a patient caused by oxygen deficiency is reduced.

As shown in fig. 5 and 6, the upper cap 4 is provided with a check valve 12 on an outer side wall adjacent to the suction cap 6. The suction cap 6 extends outwardly and downwardly adjacent the outer side wall of the upper end cap 4 out of a one-way valve chamber 61 which communicates with the suction port. When the suction cap 6 covers the top of the upper end cover 4, the one-way valve cavity 61 is buckled with the one-way valve 12. The bottom of the one-way valve cavity 61 is clamped with a cover plate 13 used for covering the one-way valve cavity 61, the cover plate 13 is provided with one or more air holes 18, the bottom surface of the cover plate 13 is lower than the top end surface of the upper end cover 4, and the thickness of a valve plate 19 of the one-way valve 12 is 0.2 mm. The check valve 12 is placed in the check valve chamber 61 to prevent it from being damaged. When the patient exhales, the one-way valve 12 is opened, the quincuncial gasket 5 is closed, the gas is exhausted from the air hole 18 through the one-way valve 12, and the atomized medicine particles in the mist storage tank main body are retained and cannot be exhausted into the air along with the patient exhaling. This effectively reduces waste of drug particles. And the valve plate 19 of the one-way valve 12 is set to be 0.2mm thick, so that the opening and closing sensitivity of the valve plate 19 can be improved.

Example 2

The process is the same as in example 1, except that the following technical contents are added:

as shown in fig. 2, the mist storage tank of the present embodiment further includes a small cap 7. The small cap 7 covers the air suction port of the suction cap 6 to keep the air suction port clean, so that bacteria are prevented from breeding and the infection rate of the oral cavity is reduced. As shown in fig. 1, the outer side wall of the small cap 7 is provided with a connecting piece 14; the outer side wall of the suction cap 6 close to the upper end cover 4 is provided with a convex column 15. One end of the connecting piece 14 is connected with the small cap 7, and the other end is sleeved on the convex column 15, so that the small cap 7 is prevented from being lost.

When the aerosol spraying device is used, the aerosol spraying port is inserted into the mist inlet, the aerosol device is started, and the medicine mist is sprayed into the mist storage tank. When a patient inhales, negative pressure is formed in the mist storage tank main body, so that the petals of the plum blossom-shaped gasket 5 which are not fixed by the convex ridges 17 are pushed away, and atomized medicine particles flow into the air vent 11 and are inhaled into the mouth of the patient. The quincuncial gasket 5 ensures that air flows only in one direction, thereby playing the role of a one-way valve. At this time, the check valve 12 located in the check valve chamber 61 is in a closed state by the suction pressure, so that the outside air cannot enter the mist storage tank main body. When the patient exhales, the air pressure in the mist storage tank main body is higher than the external atmospheric pressure, the plum blossom gasket 5 positioned between the medicine storage tank main body and the inhalation cap 6 is closed, the check valve 12 positioned in the check valve cavity 61 is opened, and the gas exhaled by the patient flows out along with the air hole 18 of the check valve 12. When the patient inhales in the next inhalation period, the plum blossom gasket 5 is opened again, the one-way valve 12 is closed, and the atomized medicine particles are inhaled into the respiratory tract of the patient along with inhalation. Through the setting of plum blossom gasket 5 and check valve 12, the medicine granule in the storage tank main part is kept apart when making the patient exhale, does not receive the influence that the patient exhales, reduces or avoids the medicine to dissipate to reach the purpose that reduces medicine dispersion volume, improve medicine utilization ratio and high delivery volume. The aerosol spray interface is tightly wrapped by the base sleeve 1, so that the dispersion of medicine particles is further reduced, and the utilization rate of the medicine is improved. In any case, the quincunx pad 5 and the check valve 12 are always in a closed state regardless of the inhalation or exhalation actions.

When the cleaning is needed, the base 2 and the mist storage tank main body are separated, the barrel body 3 and the upper end cover 4 are detached, and the mist storage tank can be cleaned comprehensively.

The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the invention.

Claims (10)

1. A mist storage tank is characterized by comprising a base sleeve, a base, a mist storage tank main body and a suction cap which are sequentially communicated from bottom to top, wherein the bottom of the base is provided with a mist inlet for connecting an aerosol spraying interface, and the mist inlet is provided with a mist inlet wall; the top of the suction cap is provided with an air suction port for the mouth to suck; the base sleeve is tightly attached to the outer wall and the bottom end face of the base and the wall of the mist inlet, one part of the base sleeve extends towards the inside of the mist inlet to form an extending part, and the other part of the base sleeve continues to extend upwards along the wall of the mist inlet to form a first attaching part; the inner edge of the extension part extends upwards to form a second attaching part; the first fitting portion and the second fitting portion are arranged to be capable of tightly wrapping the aerosol spray interface.

2. The mist storage tank of claim 1, wherein the plane of the extension is disposed higher than the bottom end surface of the base.

3. The mist storage tank of claim 1, wherein:

the extension part is of a crescent structure; the plurality of extending parts are symmetrically arranged inside the fog inlet;

the inner edges of the extension parts respectively extend upwards to form a plurality of second attaching parts;

the first attaching portion is plural.

4. The mist storage tank of claim 1, wherein the mist storage tank body is of a spindle-shaped structure with a hollow interior, and comprises a tank body and an upper end cover which are clamped with each other from bottom to top, the bottom of the tank body is clamped with the base, and the top of the upper end cover is covered with the suction cap.

5. The mist storage tank of claim 4, wherein the top of the upper end cover is a hollow structure; the hollow structure comprises a collection part positioned in the center of the hollow structure, a plurality of reinforcing ribs which extend from the collection part to the edge of the hollow structure and are symmetrically distributed, and a plurality of guide columns which are uniformly distributed along the circumferential direction of the edge of the hollow structure; and a vent hole is formed between every two adjacent reinforcing ribs, and the guide post is positioned in the vent hole.

6. The mist storage tank of claim 5, wherein the quincuncial gasket is connected at its edges and is divided into a plurality of petals sized to cover the vent holes in the upper end cap; the quincuncial gasket is provided with a guide hole matched with the guide pillar, and the quincuncial gasket can penetrate through the guide pillar to cover the vent hole through the guide hole.

7. The mist storage tank of claim 6, wherein the suction cap is longitudinally provided with a plurality of ridges on an inner side wall adjacent to the upper end cover; inhale the cap cover in the top of upper end cover, just protruding stupefied sets up to be pressed on the outer fringe of plum blossom gasket.

8. The mist storage tank of claim 4, wherein the upper end cap is provided with a one-way valve on an outer sidewall adjacent to the suction cap, and the suction cap extends outwardly and downwardly out of a one-way valve cavity adjacent to the outer sidewall of the upper end cap; the one-way valve cavity is communicated with the air suction port, and the suction cap is arranged to cover the top of the upper end cover; the check valve cavity and the check valve are arranged to be capable of being buckled; the bottom of the unidirectional valve cavity is clamped with a cover plate for covering the unidirectional valve cavity; the cover plate is provided with an air hole, and the bottom surface of the cover plate is lower than the top end surface of the upper end cover; the thickness of the valve plate of the one-way valve is 0.1-0.6 mm.

9. The mist storage tank of claim 4, further comprising a small cap configured to cover the suction port of the suction cap; the outer side wall of the suction cap close to the upper end cover is provided with a convex column, and the outer side wall of the small cap is provided with a connecting piece; one end of the connecting piece is connected with the small cap, and the other end of the connecting piece is sleeved on the convex column.

10. An inhalation device comprising a canister as claimed in any of claims 1 to 9 and an aerosol apparatus having an aerosol spray interface, the inlet of the canister interfacing with the aerosol spray interface of the aerosol apparatus.

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