CN110354353B

CN110354353B - Medical extrusion type dry powder suction device

Info

Publication number: CN110354353B
Application number: CN201910685832.4A
Authority: CN
Inventors: 黄超文; 仝金斋; 卢焕平; 朱世新
Original assignee: Jiangmen Central Hospital
Current assignee: Jiangmen Central Hospital
Priority date: 2019-07-28
Filing date: 2019-07-28
Publication date: 2021-07-27
Anticipated expiration: 2039-07-28
Also published as: CN110354353A

Abstract

The invention discloses a medical extrusion type dry powder suction device which comprises a shell, wherein an extrusion rod sleeve is fixedly arranged on the shell, an extrusion rod is movably inserted in the extrusion rod sleeve, an extrusion spring is fixedly arranged on the extrusion rod sleeve, a ratchet mechanism is fixedly sleeved on a wheel shaft of a driving gear, a turntable capsule cabin is movably arranged on the turntable shaft, an extrusion baffle is fixedly arranged on the shell, the extrusion baffle is trapezoidal, a medicine cabin is fixedly arranged in the shell, an air inlet hole is formed in the medicine cabin, the medicine cabin is fixedly connected with a suction nozzle, a cutting blade extends into the medicine cabin, and a capsule hole is formed in the medicine cabin Convenient to use, can use repeatedly and use cost is lower, is fit for extensively promoting.

Description

Medical extrusion type dry powder suction device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a medical extrusion type dry powder suction device.

Background

The dry powder inhalation device is characterized in that the dry powder inhalation is administrated in a form of dry powder inhalation, the medicine is absorbed by abundant capillary vessels under lung and respiratory tract mucous membranes, the effect is very quick, the device is particularly suitable for protein polypeptide medicine administration, beta-adrenaline antagonist, anticholinergic agent, cortical hormone, potent anesthetic, anti-migraine and other small molecule medicines, and insulin, growth hormone, vaccine, new biotechnology products and other macromolecular medicines can also be prepared into lung administration preparations to play a local or systemic treatment role, the dry powder inhalation device has a plurality of types, and can be divided into: single dose, depot multiple dose, multiple unit dose; the storage modes of the medicines can be divided into: the capsule type, the vesicle type, the reservoir type, and the dry powder inhalation device commonly used at present have disadvantages in that: the volume is great, it is inconvenient to carry, it is comparatively troublesome to use the operation, often need the maintenance, the medicine volume of remaining in the device is higher, except single dose type (like rotary inhaler etc.), all the other dry powder inhalation devices are all non-reusable, patient's repeated purchase inhalation device has been caused, patient's treatment expense has been aggravated, bring unnecessary economic burden for the patient, what most dry powder inhalation devices adopted on the market is traditional puncture mode, this capsule open mode leads to dry powder medicine suction incomplete in the capsule easily, and fine needle tubing blocks up easily, influence the inhalation of dry powder, small part of cutting formula dry powder inhalation device can only once carry one piece of capsule, it is comparatively inconvenient to use, and the structure is comparatively complicated, use cost is higher.

In order to solve the above-mentioned problems, the scratch-proof dry powder inhaler of the prior art with application number "CN 201710946349.8" comprises a body, a groove for placing a capsule is arranged in the body; the air channel is arranged on the body and communicated with the groove; the button is connected with the spine part, the body is provided with a through hole communicated with the groove, the spine part is positioned in the through hole and is used for piercing the capsule in the groove, the aperture of the first end of the through hole is larger than that of the second end of the through hole, and the first end of the through hole is the end of the through hole close to the groove; the suction nozzle is provided with a suction nozzle through hole communicated with the groove of the body, the lower end of the suction nozzle through hole is provided with a filter screen, the lower end of the suction nozzle is connected with the upper end of the body, and the suction nozzle can rotate relative to the body; the cover body is removably arranged on the suction nozzle and completely covers the upper ends of the suction nozzle and the body. The scratch-proof dry powder suction device is simple in structure, and can effectively prevent the spine part from scratching the inner wall of the body.

Although the problem that the body is easily damaged by the conventional puncture is solved, the above dry powder inhaler still has obvious defects in the using process: 1. the device adopts a traditional puncture mode, the capsule opening mode easily causes incomplete suction of the dry powder medicine in the capsule, and a fine needle tube is easily blocked to influence the suction of the dry powder; 2. the device can only break and disassemble one dry powder capsule at a time, needs to be repeatedly filled, and is troublesome to use.

Disclosure of Invention

The present invention is directed to a medical squeeze-type dry powder inhaler to solve the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

a medical extrusion type dry powder inhalation device comprises a shell, wherein an extrusion rod sleeve is fixedly arranged on the shell, an extrusion rod is movably inserted in the extrusion rod sleeve, an extrusion spring is fixedly arranged on the extrusion rod sleeve, one end of the extrusion spring, far away from the extrusion rod sleeve, is fixedly connected with a spring seat, the spring seat is fixedly arranged on the extrusion rod, one end of the extrusion rod is fixedly provided with an extrusion block, one end of the extrusion rod, far away from the extrusion block, is fixedly connected with a rack, one end of the rack, far away from the extrusion rod, is fixedly connected with a cutting blade, the rack is meshed with a driving gear, a ratchet mechanism is fixedly sleeved on a wheel shaft of the driving gear, the ratchet mechanism comprises a driving wheel, a driven wheel and a wheel claw, a driving wheel is fixedly sleeved on a wheel shaft of the driving gear, the driven wheel is fixedly sleeved on a rotating disc shaft, and a rotating disc capsule cabin is movably arranged on the rotating disc shaft, the improved capsule medicine taking device is characterized in that an extrusion baffle is fixedly mounted on the shell and is trapezoidal, a medicine cabin is fixedly mounted in the shell, an air inlet hole is formed in the medicine cabin, the medicine cabin is fixedly connected with the suction nozzle, the cutting blade extends into the medicine cabin, and a capsule hole is formed in the medicine cabin.

Preferably, carousel capsule cabin includes skeleton, spring and capsule cabin, the fixed cover of spring is established on the capsule cabin, capsule cabin movable mounting is in the skeleton, fixed mounting has briquetting down on the capsule cabin, briquetting is located the extrusion track down.

Preferably, the shell is movably provided with a first box cover and a second box cover.

Preferably, a stainless steel blocking net is fixedly installed at the joint of the suction nozzle and the medicine cabin, and the diameter of a mesh of the stainless steel blocking net is 3 mm.

Preferably, the capsule compartment has a diameter of between 5 and 6 mm.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention has simple structure, convenient use, repeated use and lower use cost;

2. the invention utilizes the blade to cut the capsule, can completely discharge the dry powder medicament in the capsule, effectively avoids the blockage of the needle tube caused by puncture, ensures that the dry powder can be completely inhaled into the lung, and improves the utilization rate of the medicament;

3. the invention can carry a plurality of capsules, can be used for a plurality of times after being placed once, reduces the time for loading and taking the capsules and is convenient to use.

The multi-piece capsule discharging device can carry a plurality of capsules, the capsules can be used for many times after being placed once, the capsules are cut by the blade, dry powder medicines in the capsules can be thoroughly discharged, the structure is simple, the use is convenient, the use is repeated, the use cost is low, and the multi-piece capsule discharging device is suitable for wide popularization.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the housing of the present invention;

FIG. 3 is a schematic side view of the overall structure of the present invention;

FIG. 4 is a schematic view of a carousel capsule compartment configuration of the present invention;

FIG. 5 is a schematic view of a ratchet mechanism according to the present invention;

fig. 6 is a schematic view of the structure of the extrusion baffle of the present invention.

In the figure: the capsule comprises a shell 1, an extrusion rod sleeve 2, an extrusion rod 3, an extrusion spring 4, a spring seat 5, an extrusion block 6, a rack 7, a cutting blade 8, a driving gear 9, a ratchet mechanism 10, a driving gear 11, a driven gear 12, a wheel claw 13, a turntable shaft 14, a turntable capsule cabin 15, an extrusion baffle 16, a capsule cabin 17, an air inlet 18, a suction nozzle 19, a capsule hole 20, a framework 21, a spring 22, a capsule cabin 23, a briquetting 24, an extrusion track 25, a first box cover 26, a second box cover 27, a stainless steel blocking net 28 and a capsule 29.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-6, the present invention provides a technical solution:

a medical extrusion type dry powder suction device comprises a shell 1, the shell 1 is used as a bearing part of each part, an extrusion rod sleeve 2 is fixedly installed on the shell 1, the extrusion rod sleeve 2 is used for fixing an extrusion rod 3, the extrusion rod 3 is movably inserted in the extrusion rod sleeve 2, an extrusion spring 4 is fixedly installed on the extrusion rod sleeve 2, one end, far away from the extrusion rod sleeve 2, of the extrusion spring 4 is fixedly connected with a spring seat 5, the spring seat 5 is fixedly installed on the extrusion rod 3, under the action of no external force, the extrusion rod 3 is far away from the extrusion rod sleeve 2 under the action of the extrusion spring 4, an extrusion block 6 is fixedly installed at one end of the extrusion rod 3, the extrusion rod 3 is made to stretch by pressing the extrusion block 6, one end, far away from the extrusion block 6, of the extrusion rod 3 is fixedly connected with a rack 7, the extrusion rod 3 is moved by the movement of the extrusion rod 3, one end, far away from the extrusion rod 3, of the rack 7 is fixedly connected with a cutting blade 8, the rack 7 moves to drive the cutting blade 8 to move so as to cut the capsule 29, the rack 7 is meshed with the driving gear 9, the rack 7 moves to drive the driving gear 9 to rotate, a ratchet mechanism 10 is fixedly sleeved on a wheel shaft of the driving gear 9, the ratchet mechanism 10 comprises a driving wheel 11, a driven wheel 12 and a wheel claw 13, when the extrusion rod 3 is extruded, the driving wheel 11 rotates reversely, the wheel claw 13 is separated from the driven wheel 12 at the moment, the driven wheel 12 stops rotating, when the extrusion rod 3 retracts, the driving wheel 11 rotates forwards, the wheel claw 13 is meshed with the driven wheel 12, at the moment, the driven wheel 12 rotates so as to drive the rotating disc shaft 14 to rotate, the rotating disc shaft 14 rotates once at intervals in one direction because each pressing is guaranteed, the driving wheel 11 is fixedly sleeved on the wheel shaft of the driving gear 9, the driving wheel 9 rotates to drive the driving wheel 11 to rotate, and the driving wheel 11 rotates to drive the driven wheel 12 to rotate, the driven wheel 12 is fixedly sleeved on the rotary table shaft 14, the driven wheel 12 rotates to drive the rotary table shaft 14 to rotate, the rotary table shaft 14 is movably provided with a rotary table capsule cabin 15, the rotary table shaft 14 rotates to drive the rotary table capsule cabin 15 to rotate, the shell 1 is fixedly provided with an extrusion baffle 16, the extrusion baffle 16 is trapezoidal, the extrusion baffle 16 is used for pressing a lower pressing block 24 on the capsule cabin 23 downwards, so that the capsule cabin 23 moves downwards, a capsule 29 is driven to enter a capsule hole 20 and is finally cut by the cutting blade 8, the shell 1 is also fixedly provided with a medicine cabin 17, the medicine cabin 17 is used for containing dry powder falling after cutting, the medicine cabin 17 is provided with an air inlet hole 18, a user inhales air from the suction nozzle 19, the air enters from the air inlet hole 18 and is mixed with the dry powder medicine to enter the suction nozzle 19, and is finally inhaled by the user into the lung, the medicine cabin 17 is fixedly connected with the suction nozzle 19, the cutting blade 8 extends into the medicine cabin 17, the capsule cavity 17 is provided with a capsule hole 20, a lower pressing block 24 on the capsule cavity 23 is pressed down by the extrusion baffle 16, the capsule cavity 23 moves downwards, and finally the capsule 29 enters the capsule cavity 17 through the capsule hole 20.

Preferably, the turntable capsule chamber 15 comprises a framework 21, the framework 21 is used for installing each capsule chamber 23, the springs 22 are used for upwards extruding the capsule chamber 23, the capsule chamber 23 is used for placing capsules 29, the springs 22 are fixedly sleeved on the capsule chamber 23, the capsule chamber 23 is movably installed in the framework 21, the capsule chamber 23 is fixedly provided with a lower pressing block 24, the lower pressing block 24 is contacted with the trapezoidal extrusion baffle 16 and then downwards moves on the inclined edge of the trapezoidal extrusion baffle 16, the lower pressing block 24 is positioned in the extrusion track 25, and the lower pressing block 24 can move up and down in the extrusion guide track 25.

Preferably, the housing 1 is further movably provided with a first cover 26 and a second cover 27, the first cover 26 prevents the rotary disc capsule compartment 15 from falling off, the rotary disc capsule compartment 15 can be taken out when opened, the second cover 27 is used for closing the medicine compartment 17, and the residual shell falling from the bottom of the internal cutting capsule 29 can be taken out when opened.

Preferably, a stainless steel barrier net 28 is fixedly arranged at the joint of the suction nozzle 19 and the medicine cabin 17, the diameter of the mesh of the stainless steel barrier net 28 is 3mm, the mesh with the diameter of 3mm can ensure the normal passing of the dry powder medicine, and simultaneously can block the residual shell 1 falling from the bottom of the cutting capsule 29 and prevent the residual shell from being sucked into the lung by a user.

Preferably, the capsule chamber 23 has a diameter of 5-6mm, and the standard 2#, 1# and 0# capsules 29 have diameters of 6.7 ± 0.03mm, 6.61 ± 0.03mm and 7.34 ± 0.03mm, respectively, and the capsules 29 can be fed into the capsule chamber 23 by slightly deforming the housing, and the capsules 29 are fixed by pressing between the outer shell of the capsules 29 and the capsule chamber 23 to prevent the capsules 29 from sliding in the capsule chamber 23.

The working principle is as follows: the user opens the first box cover 26, takes out the rotary disc capsule cabin 15, places the capsules 29 in the plurality of capsule cabins 23 on the rotary disc capsule cabin 15, puts the rotary disc capsule cabin 15 into the rotary disc shaft 14 again, closes the first box cover 26, presses the extrusion block 6 with hands, enables the extrusion rod 3 to move towards the interior of the shell body 1 by pressing the extrusion block 6, the extrusion rod 3 moves to drive the rack 7 to move, the rack 7 moves to drive the cutting blade 8 to move, the cutting blade 8 moves to cut the bottom of the capsules 29 in the capsule cabin 23, the residual shells of the cut capsules are separated from the capsules 29, further enables the dry powder in the interior to fall into the medicine cabin 17, the air enters from the dry powder air inlet hole 18 through the suction of the user, the dry powder medicine enters the suction nozzle 19 together with the dry powder air inlet hole, the lung is sucked by the user, the extrusion block 6 is released after the suction, the extrusion rod 3 retracts under the action of the extrusion spring 4, at the moment, the extrusion rod 3 drives the rack 7 to retract, the rack 7 moves to drive the driving gear 9 to rotate, the driving gear 9 rotates to drive the driving gear 11 to rotate, the driving gear 11 rotates to drive the driven gear 12 to rotate, the driven gear 12 rotates to drive the rotary disc shaft 14 to rotate, the rotary disc shaft 14 rotates to drive the rotary disc capsule cabin 15 to rotate, the rotary disc capsule cabin 15 rotates to enable the lower pressing block 24 to be in contact with the trapezoidal extrusion baffle 16, the lower pressing block 24 moves downwards on the inclined edge of the trapezoidal extrusion baffle 16, the lower pressing block 24 moves downwards to drive the capsule cabin 23 to move downwards, the capsule cabin 23 moves downwards to drive the capsule 29 to enter the medicine cabin 17 through the capsule hole 20 for preparing the next suction action, the empty capsule 29 after being used up is taken out from the capsule cabin 23, and the cut residual capsule shell is taken out from the second box.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A medical squeeze type dry powder inhalation device comprising a housing (1), characterized in that: fixed mounting has extrusion rod cover (2) on casing (1), extrusion rod cover (2) internalization is inserted and is equipped with extrusion pole (3), fixed mounting has extrusion spring (4) on extrusion rod cover (2), extrusion spring (4) are kept away from the one end and spring holder (5) fixed connection of extrusion rod cover (2), spring holder (5) fixed mounting is on extrusion pole (3), extrusion pole (3) one end fixed mounting has extrusion block (6), extrusion block (6) one end and rack (7) fixed connection are kept away from in extrusion pole (3), extrusion pole (3) one end and cutting blade (8) fixed connection are kept away from in rack (7), rack (7) and driving gear (9) meshing, still fixed cover is equipped with ratchet (10) on the shaft of driving gear (9), ratchet (10) include action wheel (11), From driving wheel (12) and wheel claw (13), the epaxial fixed cover of wheel of driving gear (9) is equipped with action wheel (11), establish on carousel axle (14) from driving wheel (12) fixed cover, movable mounting has carousel capsule cabin (15) on carousel axle (14), fixed mounting has extrusion baffle (16) on casing (1), extrusion baffle (16) are trapezoidal, it has medicine cabin (17) to go back fixed mounting in casing (1), inlet port (18) have been seted up on medicine cabin (17), medicine cabin (17) and suction nozzle (19) fixed connection, cutting blade (8) extend to in medicine cabin (17), capsule hole (20) have been seted up on medicine cabin (17).

2. The medical squeeze powder inhalation device of claim 1, wherein: carousel capsule cabin (15) include skeleton (21), spring (22) and capsule cabin (23), spring (22) fixed cover is established on capsule cabin (23), capsule cabin (23) movable mounting is in skeleton (21), fixed mounting has lower briquetting (24) on capsule cabin (23), briquetting (24) are located extrusion track (25) down.

3. The medical squeeze powder inhalation device of claim 1, wherein: the shell (1) is also movably provided with a first box cover (26) and a second box cover (27).

4. The medical squeeze powder inhalation device of claim 1, wherein: the connection part of the suction nozzle (19) and the medicine cabin (17) is fixedly provided with a stainless steel blocking net (28), and the diameter of a mesh of the stainless steel blocking net (28) is 3 mm.

5. A medical squeeze powder inhalation device according to claim 2, wherein: the capsule chamber (23) has a diameter of between 5 and 6 mm.