A kind of actuating mechanism of powder inhalerTechnical field
The present invention relates to the actuating mechanism of a kind of powder inhaler.
Background technology
Foradil Aerolizer formoterol fumarate, it is a kind of micronization aerosol without propellant, refers to that micronized medicine or carrier are with glueCapsule, vesicle or multiple dose depot form, use special powder inhaler.The preparation actively sucked by patient.Dry powder is inhaledEnter agent as a kind of pulmonary administration, be used for clinically treating the pulmonary local such as asthma, chronic obstructive pulmonary disease, capsule fiberDisease.
Pulmonary administration approach is due to its bigger absorption area and does not has first pass effect of hepar, in the research and development of drug delivery systemField receives significant attention, and its clinical practice is also developed into the treatment of general disease by traditional asthma local treatment.With oneAs unlike route of administration, pulmonary administration needs to complete the dispersion to medicine, atomization and pulmonary by specific suction apparatusTransmission, suction apparatus serves pivotal role in pulmonary delivery system.Main flow uses powder inhaler as administration at presentDevice.Powder inhaler is to utilize the respiratory air flow of patient or power set to be transferred to lung after pharmaceutical powder aerosolizationA kind of pulmonary delivery device in portion.Owing to it uses simply, is easy to carry about with one, the compliance of patient is good, extensive in clinical practice.
Existing powder inhaler is due to the defect in design, multiple for its structure of actuating mechanism of dry powder inhalationMiscellaneous, trouble is installed, in-convenience in use.
Summary of the invention
The invention aims to overcome weak point of the prior art, it is provided that a kind of simple in construction, easy for installation,Can effectively drive the actuating mechanism of the powder inhaler that quantitative feeding mechanism works.
In order to achieve the above object, the present invention uses below scheme:
A kind of actuating mechanism of powder inhaler, it is characterised in that: include and can order about in dry powder inhalation systemThe slip support mechanism of the demand chamber slide anteroposterior of quantitative feeding mechanism, described slip support mechanism is provided with waist type connecting hole, is slidingConnecting to have on dynamic support mechanism to drive the dust-proof of slip support mechanism to actuate lid.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that described slip support mechanism includes cunningDynamic bracket, is provided with the storage tank for installing demand chamber mechanism in described slide brackets, divides on described slide brackets both sidesIt is not provided with connection trailing arm, is provided with in described connection trailing arm for actuating, with dust-proof, the waist type connecting hole that lid is connected.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that described dust-proof lid of actuating includes rushDynamic lid body, is respectively equipped with connection sheet described actuating on lid body both sides, is provided with connection projection, institute inside described connection sheetState connection projection to be plugged in waist type connecting hole.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that set on a connection trailing arm whereinThere is the driving head that can drive counting mechanism action.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that described quantitative feeding mechanism includes supplyingMaterial seat, is provided with storage compartment in described material feeding seat upper surface, is provided with the feed opening longitudinally through material feeding seat in lower end, described storage compartment,Being provided with discharge nozzle on described material feeding seat, described discharge nozzle open rearward end is longitudinally through material feeding seat, in described material feeding seat lower surfaceBeing connected with can be to the demand chamber mechanism of discharge nozzle quantitative feed.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that described demand chamber mechanism includes energyThe demand chamber seat slided, is provided with quantitative slot on demand chamber seat.
The actuating mechanism of a kind of powder inhaler as above, it is characterised in that in described demand chamber seat lower surfaceIt is provided with locating slot, in described locating slot, is provided with the shell fragment that demand chamber seat top can be made to be pressed in material feeding seat lower surface.
In sum, relative to prior art, it provides the benefit that the present invention:
Actuating mechanism simple in construction of the present invention, install, easy to use, can conveniently order about quantitative feeding mechanism action, thusRealize quantitative feed.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the present invention；
Fig. 2 is the generalized section of the present invention；
Fig. 3 is the decomposing schematic representation of the present invention.
Detailed description of the invention
The invention will be further described with detailed description of the invention in explanation below in conjunction with the accompanying drawings:
The actuating mechanism of a kind of powder inhaler as shown in Figures 1 to 3, it includes and can order about dry powder inhalation systemThe slip support mechanism 4 of demand chamber 25 slide anteroposterior of Tong Zhong quantitative feeding mechanism 2, described slip support mechanism 4 is provided with waist type evenConnecing hole 45, connecting on slip support mechanism 4 has the dust-proof of slip support mechanism 4 can be driven to actuate lid 6.
Heretofore described slip support mechanism 4 includes slide brackets 41, is provided with for pacifying in described slide brackets 41The storage tank 42 of the amount of setting house 25, is respectively equipped with connection trailing arm 43, in described connection on described slide brackets 41 both sidesIt is provided with in trailing arm 43 for actuating, with dust-proof, the waist type connecting hole 45 that lid 6 is connected.
The present invention pulls dust-proof lid 6 of actuating, dust-proof lid 6 of actuating to move a location in waist type connecting hole 45 during usingPostponing, contact with each other with being connected trailing arm 43, thus order about slip support mechanism 4 and be displaced outwardly, slip support mechanism 4 drives demand chamber machineStructure 25 moves, thus realizes quantitative feeding, and simple in construction is easy for installation, uses simple.
Dust-proof lid 6 of actuating of the present invention includes and actuates lid body 61, actuates on lid body 61 both sides respectively describedBeing provided with connection sheet 62, be provided with connection projection 63 inside described connection sheet 62, described connection projection 63 is plugged on waist type connecting holeIn 45.
In the present invention, a connection trailing arm 43 is provided with the driving head 44 that can drive counting mechanism 7 action wherein.
Heretofore described quantitative feeding mechanism 2 includes material feeding seat 21, is provided with storage compartment in described material feeding seat 21 upper surface22, it is provided with the feed opening 23 longitudinally through material feeding seat 21 in lower end, described storage compartment 22, described material feeding seat 21 is provided with dischargingPipe 24, described discharge nozzle 24 open rearward end is longitudinally through material feeding seat 21, and being connected with in described material feeding seat 21 lower surface can be toThe demand chamber mechanism 25 of discharge nozzle 24 quantitative feed.
Heretofore described demand chamber mechanism 25 includes slidable demand chamber seat 251, is provided with on demand chamber seat 251Quantitative slot 252.
The present invention is provided with locating slot 253 in described demand chamber seat 251 lower surface, is provided with in described locating slot 253Demand chamber seat 251 top can be made to be pressed in the shell fragment 254 of material feeding seat 21 lower surface.
The present invention makes demand chamber seat 251 move forward and backward by control slip support mechanism 4 and can realize quantitative feed.When fixedWhen amount room seat 251 is in rear, quantitative slot 252 connects with feed opening 23, and it is fixed that the medicated powder in storage compartment 22 enters from feed opening 23Measuring tank 252, until filling up quantitative slot 252, ordering about demand chamber seat 251 and moving forward, and makes quantitative slot 252 interconnect with discharge nozzle 24 phaseLogical, simultaneously, feed opening 23 is closed, when user sniffs discharging by demand chamber seat 251 upper surface on rear side of quantitative slot 252During pipe 24, the medicated powder in quantitative slot 252 just can be sucked out from discharge nozzle 24, simple in construction, and quantitative feeding is safe and reliable.
The ultimate principle of the present invention and principal character and advantages of the present invention have more than been shown and described.The skill of the industryThe art personnel simply explanation it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and descriptionThe principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, theseChanges and improvements both fall within scope of the claimed invention.Claimed scope by appending claims andIts equivalent defines.