CN212118721U - Dry powder medicine inhaler - Google Patents

Abstract

The utility model provides a dry powder medicine inhaler, which comprises a housin, the lantern ring, the medicine room, medicine room frame and answer mechanism, the casing includes suction nozzle and shell body, suction nozzle and shell body pass through the lantern ring and connect, suction nozzle inner chamber upper portion is equipped with an answer mechanism, answer mechanism includes the slide, thimble and spring, the spring is located the slide, the thimble passes through boss structure and slide gomphosis, inlay the spring in the slide, the shell body includes first periphery wall, first diapire and ejecting post, ejecting post one end is connected with first diapire center, the first periphery wall of shell body forms an inner chamber, and be equipped with the inlet port on the first periphery wall. The utility model discloses a perforation nail structure of traditional medicine inhaler has been abandoned in innovative design, adopts the medicine room to replace perforation nail structure and capsule in traditional medicine inhaler for this medicine inhaler can disperse the particle medicine steadily when carrying out the medication, keeps the regulation velocity of flow and the regulation flow of the interior air of medicine room satisfactorily.

Description

Dry powder medicine inhaler

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a dry powder medicine inhaler.

Background

Asthma is a common respiratory disease, is one of four stubborn diseases acknowledged in the world, and is mainly characterized by high morbidity and fast onset, according to related statistical data published by health departments, the total number of patients suffering from asthma in the world currently exceeds 1.5 hundred million people, the morbidity shows a trend of rising year by year, and Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease and comprises a series of symptoms of cough, expectoration, tired dyspnea and obvious progressive reduction of reversible or irreversible airflow;

to date in the fifties of the twentieth century, there are three main types of pulmonary inhalation drug delivery devices: the aerosol inhalation device, the pressure quantitative inhalation device and the Dry Powder Inhaler (DPI) are large in volume, are mostly suitable for treatment in hospitals and are not suitable for carrying, the pressure quantitative inhaler has high requirements on the operation technology of patients, the operation process of young children and old people is difficult to master, the dry powder inhaler is a device for inducing the atomization and dispersion of dry powder of medicaments by active inhalation of the patients, the propellant is avoided, the cooperative process of the patients is eliminated, and therefore the development and the application of the dry powder inhaler gradually become a new direction of the key development of international pulmonary inhalation treatment,

one of the patents disclosed in patent No. 201580022342.6 discloses an articulated capsule inhaler, the piercing tool of which operates according to the following principle: when a piercing tool pierces a capsule contained in a drug inhaler, a hole to ensure that a desired air flow passage area is created between the capsule cavity and the piercing pin insertion hole is pierced in the capsule by inserting the piercing pin along the corresponding piercing pin insertion hole toward the capsule, and piercing or punching a hole in the capsule by the piercing pin, however, as described above, in conventional drug inhalers, there is a slight variation in the size of the hole when the hole is made in the capsule. Such slight variation in the size of the holes causes variation in the area of the fluid flow path between the capsule interior and the piercing pin insertion holes, and when a fine particulate medicine having a strong aggregating property is used, there is a problem of unstable dispersion of the fine particulate medicine, which prevents a patient from stably inhaling the medicine into the lungs at any time, thus solving the above problems and providing a dry powder medicine inhaler

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solve the above-mentioned drawbacks of the prior art and to provide a dry powder inhaler.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dry powder inhaler comprises a housing, a collar, a chamber frame and a return mechanism;

the shell comprises a suction nozzle and a shell body, the medicine chamber rack is embedded in an inner cavity of the shell body, and the medicine chamber is positioned in the medicine chamber rack;

the suction nozzle is connected with the shell body through the lantern ring;

a return mechanism is arranged at the upper part of the inner cavity of the suction nozzle;

the restoring mechanism frame comprises a slide way, a thimble and a spring, the spring is positioned in the slide way, the thimble is embedded with the slide way through a boss structure, the spring is embedded in the slide way, the shell body comprises a first peripheral wall, a first bottom wall and an ejection column, one end of the ejection column is connected with the center of the first bottom wall, the first peripheral wall of the shell body forms an inner cavity, and the first peripheral wall is provided with an air inlet,

the medicine room includes outer medicine room, interior medicine room and medicine room lid, outer medicine room contains second diapire and second perisporium, a first circular hole and first square hole are opened to the second diapire, interior medicine room includes antetheca, third diapire and continuous both sides wall, open the square hole of second on the third diapire, both sides wall with the antetheca links to each other partly a rectangular hole, interior medicine room inlay in the inner chamber that outer medicine room second perisporium formed, the medicine room lid contains a boss and the circular hole of second, the medicine room lid pass through the boss with the gomphosis of the first square hole of outer medicine room diapire.

As a further description of the above technical solution: the air inlet holes are formed in the surface of the shell body, and the diameter of each air inlet hole is 2cm-5 cm.

As a further description of the above technical solution: the inside embedding of slide is provided with the activity groove, and activity groove and boss structure coincide each other.

As a further description of the above technical solution: rectangular grooves are embedded into the two sides of the lantern ring.

The beneficial effects are that: the utility model discloses a perforation nail structure of traditional medicine inhaler has been abandoned in innovative design, adopts the medicine room to replace perforation nail structure and capsule in traditional medicine inhaler for this medicine inhaler can disperse the particle medicine steadily when carrying out the medication, keeps the regulation velocity of flow and the regulation flow of the interior air of medicine room satisfactorily.

Drawings

Fig. 1 is a schematic perspective view of an inhaler according to the present invention;

FIG. 2 is a front schematic view of a collar of the inhaler of the present invention;

FIG. 3 is a schematic front view of a return mechanism disposed inside the inhaler mouthpiece of the present invention;

FIG. 4 is a top plan view of the inhaler mouthpiece and return mechanism assembly of the present invention;

figure 5 is a schematic view of the housing of the inhaler of the present invention;

figure 6 is a front view of the cartridge holder of the inhaler of the present invention;

figure 7 is a right side view of the outer medicine chamber of the inhaler of the present invention

Figure 8 is a schematic front, right and top view of the inner drug compartment of the inhaler of the present invention;

figure 9 is a schematic left side view of the chamber cover of the inhaler of the present invention;

figure 10 is a front view of a non-fully assembled cartridge of an inhaler according to the present invention.

Illustration of the drawings:

a suction nozzle 1; a collar 2; a housing body 3; an air intake hole 301; a first peripheral wall 302; a first bottom wall 303; an ejection post 304; a return mechanism 4; a slide 401; a thimble 402; a spring 403; a boss structure 404; a medicine chamber 5; an external medicine chamber 6; a second bottom wall 601; a second peripheral wall 602; a first circular hole 603; a first square aperture 604; an inner medicine chamber 7; a front wall 701; a third bottom wall 702; two side walls 703; a second square aperture 704; a rectangular aperture 705; a medicine chamber cover 8; a boss 801; a second circular hole 802; a medicine chamber frame 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-10, a dry powder medicament inhaler comprises a housing, a collar 2, a chamber 5, a chamber holder and a return mechanism 4;

the shell comprises a suction nozzle 1 and a shell body 3, the medicine chamber frame 9 is embedded in the inner cavity of the shell body 3, and the medicine chamber 5 is positioned in the medicine chamber frame 9;

the suction nozzle 1 is connected with the shell body 3 through a lantern ring 2;

a return mechanism 4 is arranged at the upper part of the inner cavity of the suction nozzle 1;

the restoring mechanism 4 comprises a slide way 401, a thimble 402 and a spring 403, the spring 403 is positioned in the slide way 401, the thimble 402 is embedded in the slide way 401 through a boss structure 404, the spring 403 is embedded in the slide way 401, the housing body 3 comprises a first peripheral wall 302, a first bottom wall 303 and an ejection column 304, one end of the ejection column 304 is connected with the center of the first bottom wall 303, the first peripheral wall 302 of the housing body 3 forms an inner cavity, and the first peripheral wall 302 is provided with an air inlet hole 301;

the medicine chamber 5 comprises an outer medicine chamber 6, an inner medicine chamber 7 and a medicine chamber cover 8, the outer medicine chamber 6 comprises a second bottom wall 601 and a second peripheral wall 602, the second bottom wall is provided with a first circular hole 603 and a first square hole 604, the inner medicine chamber 7 comprises a front wall 701, a third bottom wall 702 and two connected side walls 703, the third bottom wall 702 is provided with a second square hole 704, the two side walls 703 are connected with the front wall 701 to form a rectangular hole 705, the inner medicine chamber 7 is embedded in an inner cavity formed by the second peripheral wall 602 of the outer medicine chamber, the medicine chamber cover 8 comprises a boss 801 and a second circular hole 802, and the medicine chamber cover 8 is embedded with the first square hole 604 of the bottom wall of the outer medicine chamber through the boss 801.

Wherein, the air inlet 301 is provided with a plurality of air inlets on the surface of the shell body 3, the diameter is 2cm-5cm, and the shell body 3 can uniformly ventilate through the air inlets 301.

The slide 401 is embedded with a movable groove, the movable groove is matched with the boss structure 404, and the thimble 402 can be conveniently mounted in the slide 401 through the boss structure 404 through the movable groove.

Wherein, the both sides of the lantern ring 2 all imbed and are provided with rectangular groove, are convenient for assemble and dismantle suction nozzle 1 and shell body 3 through ring cover 2.

The working principle is as follows: when the medicine room is used, the medicine room 5 contains medicines and is not assembled with the inhaler, the inhaler is in a closed state, the suction nozzle 1 and the shell body 3 of the medicine room 5 are separated in a use state, the medicine room 5 is placed in a medicine room rack in the shell body 3, the suction nozzle 1 and the shell body 3 are closed, the ejection column 304 in the shell body 3 ejects the inner medicine room 7 towards the direction of the suction nozzle 1 through the circular hole 603 in the bottom wall of the outer medicine room 6, the front end of the inner medicine room 7 abuts against the ejector pin 402 when the inner medicine room 7 ejects towards the direction of the suction nozzle 1, the ejector pin 402 compresses the spring 403 in the slide way 401, after the medicine is inhaled by a patient, the suction nozzle 1 and the shell body 3 of the medicine room 5 are separated, the inner medicine room 7 is ejected back to the outer medicine room 6 by the restoring force of the spring 403, the medicine room 5 is taken out, and the suction nozzle 1 and the shell body 3 are closed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (4)

1. A dry powder medicament inhaler, comprising a housing, a collar (2), a chamber (5), a chamber holder and a return mechanism (4);

the shell comprises a suction nozzle (1) and a shell body (3), the medicine chamber rack (9) is embedded in the inner cavity of the shell body (3), and the medicine chamber (5) is positioned in the medicine chamber rack (9);

the suction nozzle (1) is connected with the shell body (3) through the lantern ring (2);

a return mechanism (4) is arranged at the upper part of the inner cavity of the suction nozzle (1);

the return mechanism (4) comprises a slide way (401), a thimble (402) and a spring (403), the spring (403) is positioned in the slide way (401), the thimble (402) is embedded with the slide way (401) through a boss structure (404), the spring (403) is embedded in the slide way (401), the shell body (3) comprises a first peripheral wall (302), a first bottom wall (303) and an ejection column (304), one end of the ejection column (304) is connected with the center of the first bottom wall (303), the first peripheral wall (302) of the shell body (3) forms an inner cavity, and an air inlet hole (301) is arranged on the first peripheral wall (302),

the medicine chamber (5) comprises an outer medicine chamber (6), an inner medicine chamber (7) and a medicine chamber cover (8), the outer medicine chamber (6) comprises a second bottom wall (601) and a second peripheral wall (602), the second bottom wall is provided with a first round hole (603) and a first square hole (604), the inner medicine chamber (7) comprises a front wall (701), a third bottom wall (702) and two connected side walls (703), a second square hole (704) is formed in the third bottom wall (702), a rectangular hole (705) is formed at the connecting part of the two side walls (703) and the front wall (701), the inner medicine chamber (7) is embedded in an inner cavity formed by the second outer peripheral wall (602) of the outer medicine chamber, the medicine chamber cover (8) comprises a boss (801) and a second round hole (802), the medicine chamber cover (8) is embedded with the first square hole (604) on the bottom wall of the outer medicine chamber through a boss (801).

2. A dry powder medicament inhaler according to claim 1, wherein the air inlet holes (301) are provided in a plurality on the surface of the housing body (3) and have a diameter of 2cm to 5 cm.

3. A dry powder medicament inhaler according to claim 1, wherein the slide (401) is provided with a movable slot therein and the movable slot and the boss structure (404) are in engagement with each other.

4. A dry powder medicament inhaler according to claim 1, wherein the collar (2) is fitted with rectangular grooves on both sides.

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