CN107638283B - A kind of adjustable sputum elimination machine vibration pneumatic generating device - Google Patents
A kind of adjustable sputum elimination machine vibration pneumatic generating device Download PDFInfo
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- CN107638283B CN107638283B CN201711129874.7A CN201711129874A CN107638283B CN 107638283 B CN107638283 B CN 107638283B CN 201711129874 A CN201711129874 A CN 201711129874A CN 107638283 B CN107638283 B CN 107638283B
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Abstract
The present invention relates to a kind of adjustable sputum elimination machine vibration pneumatic generating device, the current Gas Vibration generating device volume of effective solution is excessive excessively heavy, the nonadjustable problem of amplitude-frequency；The technical solution of solution includes shell, and shell is divided into the chamber of left, center, right three by two pieces of partitions, and intermediate cavity upper end is provided with air inlet and gas vent, is equipped with gas distribution plate at gas vent；Piston is installed in intermediate cavity, vertical left through-hole and right through-hole are provided on piston, left and right through-hole and left and right chamber, left fixture block is installed in intermediate cavity, lever left is installed below left fixture block, lever left right end is equipped with left pressure spring, and the left air flue communicated with left chamber is driveed in intermediate cavity bottom surface, left plunger is slidably fitted in air flue, lever left end is pressed on plunger；About being symmetrically installed with right fixture block, right lever, right pressure spring, right air flue and right plunger in intermediate cavity；Present inventive concept is novel, and clever structure is adjusted portable.
Description
Technical field
The present invention relates to medical instruments field, specifically a kind of adjustable sputum elimination machine vibration pneumatic generating device.
Background technique
The disease of respiratory system will lead to airway secretions and increase, and remove in time if failing the secretion that will increase, meeting
Lead to airway obstruction, breathing acting increases, and causes to breathe muscular fatigue, finally results in respiratory failure.Cough is human body expectoration
A kind of mode, but many patients are especially old and weak patient and are often difficult to rely on the smooth expectoration of ability of its own, sputum
It is not easy to be discharged and lead to other complication, if effectively disposition not in time, can lead to grave consequences.Physiotherapy of chest has very
Long clinical application history, it is highly effective, it is one of the standard medical methods that various countries improve respiratory mucus clearing function.Knocking chest
Back can cause the vibration of lungs, and this vibration can be for delivery to air flue and when causing airway secretions to be vibrated, airway secretions
Mobility increase, can cause to cough after the secretion that flows in this way stimulation airway mucus, to reach the induction of knocking back
Cough, the purpose for removing airway secretions, expectoration vest is a kind of more universal expectoration device at present, intracardiac logical by supporting or opposing
Entering vibration pneumatic makes vest vibration to which knocking patient chest and back is to achieve the purpose that expectoration.
Existing Gas Vibration generating device volume is excessive excessively heavy, not readily portable, for the weak trouble of shortness of breath abundant expectoration
Person will cause problem inconvenient to carry.Secondly, existing Gas Vibration generating device mostly uses crank block or eccentric shaft to add company
The drive mechanisms such as bar, which are realized, to be moved back and forth, then the volume minimum of device also needs the installation space for meeting driving member plus stroke
Space, to reduce volume, it is necessary to reduce component volume and reduction stroke, however reducing component volume and reduction stroke cannot
The flow and oscillation intensity for guaranteeing vibration pneumatic, are that Arterial blood gas is undesirable, moreover, existing gas vibration generating arrangement cannot be adjusted
The oscillator intensity and frequency for saving vibration pneumatic, cause expectoration vest to kowtow bat dynamics and speed adjustability are poor, bad adaptability.
To sum up, the problem of novel sputum elimination machine Gas Vibration generating device of one kind is urgent need to resolve is designed.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the present invention provides a kind of adjustable expectoration machine vibration gas
Body generating device, the current Gas Vibration generating device volume of effective solution is excessive excessively heavy, and amplitude-frequency is nonadjustable
Problem.
Its technical solution solved is a kind of adjustable sputum elimination machine vibration pneumatic generating device, including shell, in shell
Equipped with two pieces of vertical partitions, shell is divided into the chamber of left, center, right three by two pieces of partitions, and intermediate cavity upper end opens that there are two left and right
The air inlet of arrangement, lower end are provided with a gas vent, are equipped with gas distribution plate at the aperture of gas vent；Being equipped in intermediate cavity can
The piston to horizontally slip, the upper and lower surface of piston are slided with the upper and lower surface of intermediate cavity be bonded respectively, on piston or so side by side
It is provided with vertical left through-hole and right through-hole, piston is respectively arranged on the left side and the right side lateral left guide post and right guide post, left guide post left end
It protrudes into left chamber, right guide post right end protrudes into right chamber, and left cross-drilled hole and right cross-drilled hole are had in left guide post and right guide post, left
Cross-drilled hole is connected to left chamber and Zuo Tongkong, right cross-drilled hole connection right chamber and right through-hole；Piston bottom surface is provided with vertical left card slot and the right side
Card slot；
The left cross bar that is equipped with left fixture block moving up and down in the bottom surface of intermediate cavity and can move left and right, left cross bar position
On the left of left fixture block, lateral blind hole is provided on left fixture block, left cross bar right end can be inserted into lateral blind hole, and left end, which is connected with, stretches out bottom
Left vertical bar on face, left vertical bar left side are equipped with the first left pressure spring；Being equipped with below left fixture block can be on a left side for vertical rotation in surface
Lever, at the fulcrum of lever left is located therein, left fixture block lower end connects with lever left right end and can slide along bar is long, lever left
Right end is equipped with the left pressure spring of second be disposed below, and the left air flue of lateral first, the first left gas are provided in intermediate cavity bottom surface
Road left end and left chamber communicate, and right end is equipped with the second vertical left air flue, and the second left air flue lower end and the first left air flue communicate, the
Left plunger is slidably fitted in two left air flues, lever left left end is pressed on left plunger；About its middle line in the bottom surface of intermediate cavity
It is symmetrically installed with right fixture block, right cross bar, right vertical bar, the first right pressure spring, right lever, the second right pressure spring, the first right air flue, second right side
Air flue and right plunger.
Present inventive concept is novel, and clever structure, volume is lightly portable, and amplitude-frequency is adjustable, and easy to adjust fast
Speed has significant progress compared to traditional sputum elimination machine Gas Vibration generating device.
Detailed description of the invention
Fig. 1 is top view of the present invention.
Fig. 2 is located at A-A cross-sectional view when left position for piston in Fig. 1.
Fig. 3 is located at A-A cross-sectional view when right position for piston in Fig. 1.
Fig. 4 is located at B-B cross-sectional view when left position for piston in Fig. 1.
Fig. 5 is located at B-B cross-sectional view when right position for piston in Fig. 1.
Fig. 6 is C-C cross-sectional view in Fig. 2.
Fig. 7 is enlarged drawing at D in Fig. 4.
Fig. 8 is enlarged drawing at E in Fig. 4.
Fig. 9 is enlarged drawing at F in Fig. 5.
Figure 10 is gas distribution plate top view.
Specific embodiment
Further description is made to a specific embodiment of the invention below in conjunction with attached drawing.
It is provided by Fig. 1 to Figure 10, the present invention includes shell 1, is equipped with two pieces of vertical partitions 2, two pieces of partitions 2 in shell 1
Shell 1 is divided for the chamber of left, center, right three, intermediate cavity upper end is opened there are two the air inlet 3 of left and right arrangement, and lower end is provided with one
Gas vent 4 is equipped with gas distribution plate 5 at the aperture of gas vent 4；The piston 6 that can be horizontally slipped, piston 6 are installed in intermediate cavity
Upper and lower surface slide be bonded with the upper and lower surface of intermediate cavity respectively, left and right is provided with vertical 7 He of left through-hole side by side on piston 6
Right through-hole 8, piston 6 are respectively arranged on the left side and the right side lateral left guide post 9 and right guide post 10, and left 9 left end of guide post is protruded into left chamber,
Right 10 right end of guide post protrudes into right chamber, and left cross-drilled hole 11 and right cross-drilled hole 12, left cross-drilled hole are had in left guide post 9 and right guide post 10
11 connection left chamber and left through-hole 7, right cross-drilled hole 12 are connected to right chamber and right through-hole 8；6 bottom surface of piston is provided with vertical left card slot 13
With right card slot 14；
The left cross bar 16, Zuo Heng moving up and down left fixture block 15 and can moved left and right is installed in the bottom surface of intermediate cavity
Bar 16 is located at left 15 left side of fixture block, is provided with lateral blind hole 17 on left fixture block 15, and left 16 right end of cross bar can be inserted into lateral blind hole 17,
Left end is connected with the left vertical bar 18 stretched out on bottom surface, is equipped with the first left pressure spring 19 on the left of left vertical bar 18；Pacify below left fixture block 15
Equipped with can be at the lever left 20 of vertical rotation in surface, the fulcrum of lever left 20 be located therein, left 15 lower end of fixture block and Zuo Gang
20 right end of bar connects and can be equipped with the left pressure spring 22 of second be disposed below, intermediate cavity along the long sliding of bar, 20 right end of lever left
The left air flue 23 of lateral first is provided in the bottom surface of room, the first left 23 left end of air flue and left chamber communicate, and right end is equipped with vertical the
Two left air flues 24, the second left 24 lower end of air flue and the first left air flue 23 communicate, and are slidably fitted with left plunger in the second left air flue 24
25,20 left end of lever left is pressed on left plunger 25；Right fixture block 26, the right side are symmetrically installed with about its middle line in the bottom surface of intermediate cavity
Cross bar 27, right vertical bar 28, the first right pressure spring 29, right lever 30, the second right pressure spring 31, the first right air flue 32, the second right air flue 33
With right plunger 34.
Oscillation intensity to realize vibration pneumatic is adjustable, and the left air flue 24 or so of described second is arranged side by side multiple and from a left side
The fulcrum of lever left 20 is moved closer to the right side, is mounted on a left plunger 25 in each second Zuo Qi 24, described second
Right air flue 33 or so is arranged side by side fulcrum that is multiple and moving closer to right lever 30 from right to left, in each second right air flue 33
One right plunger 34 is installed；One is mounted in each second left air flue 24 and the second right air flue 33 to be located at below plunger
Ball valve 35.
Operating stick 36 is fixedly connected on the ball valve 35,36 one end of operating stick is stretched out outside shell 1.
The gas distribution plate 5 be it is discoid, multiple axial through-holes 37 are provided on gas distribution plate 5, multiple 37 circumference of through-hole are equal
Cloth.
To guarantee the indoor air-tightness of left and right chamber, it is mounted between the left guide post 9 and right guide post 10 and partition 2 close
Seal.
To realize that two fixture blocks are slidably connected with two levers, half section of right side of the lever left 20 and right lever 30
Half section of a left side be provided with T-slot along bar length, left fixture block 15 and 26 lower end of right fixture block have been respectively articulated with a T-block, and T-block is installed on
It can rotate in same direction in T-slot and with lever.
For the present invention when specifically used, two air inlets 3 are connected with the same air inlet pipe, the distribution at 4 aperture of gas vent
5 lower end of disk is connected with exhaust pipe, and air inlet pipe connects air pump or other high-pressure air sources, air pump are driven by motor；It is living under original state
Plug 6 for left position or right position, introduced so that 6 original state of piston is with left position as an example below of the invention specifically used and worked
Journey.
When piston 6 is located at left position, the left pop-up of fixture block 15 is sticked into the left card slot 13 of 6 bottom surface of piston, prevents piston 6 from moving
Dynamic, right cross bar 27, which is inserted into the lateral blind hole 17 of right fixture block 26, prevents right fixture block 26 from popping up, the upper hole of left through-hole 7 on piston 6
Mouthful and the air inlet 3 of 1 upper left side of shell communicate, lower aperture and the dislocation of gas vent 4 are to close, and 6 upper surface of piston is by right side
Air inlet 3 is closed, and to close, lower aperture and gas vent 4 are communicated, and start at this time for the upper aperture of right through-hole 8 and the dislocation of air inlet 3
The motor of air pump, air pump are pumped into gas into air inlet pipe, and gas enters shell 1 via air inlet pipe, Zuo Tongkong 7 and left cross-drilled hole 11
In left chamber, due to the lower orifice closing of left through-hole 7, left chamber can only air inlet cannot be vented, with being pumped into for gas, left chamber
Interior air pressure increases, and air pressure acts on the bottom of left plunger 25 and push left column by the first left air flue 23 and the second left air flue 24
Plug 25 moves up, and Zuo Zhusai 25 jacks up the left end of lever left 20, and 20 right end of lever left is made to overcome the elastic force of the second left pressure spring 22
It moves downward, 20 right end of lever left moves downward through T-slot and left fixture block 15 is driven to move downward, with the indoor air pressure of left chamber
It gradually rises, air pressure pulls left fixture block 15 gradually to move down by left plunger 25 and lever left 20, until left fixture block 15 exits completely
Outside left card slot 13, left fixture block 15 no longer limiting piston 6 is pressed since the indoor air pressure of left chamber is greater than the indoor air pressure of right chamber at this time
Power difference is living by by left guide post 9 and right guide post 10 end-acted, on piston 6, piston 6 moves to right under the action of the pressure difference of left and right
While plug 6 moves to right, left vertical bar 18 moves right under the action of the first left pressure spring 19, so that left cross bar 16 be driven to move to right insertion
In the lateral blind hole 17 of left fixture block 15, left fixture block 15 is locked prevents it from popping up in this position；Piston 6 is moved to the rightmost side fastly
When, 6 right contact of the piston and elastic force for pushing right riser to overcome the first right pressure spring 29 moves right, right riser drive right transverse slat to
It moving right until exiting the lateral blind hole 17 of right fixture block 26 completely, right card slot 14 is just moved to right 26 top of fixture block at this time,
Right 30 left end of lever is bounced under the action of second right pressure spring 31, and the right pop-up of fixture block 26 sticks into right card slot 14, and piston 6 is positioned at
The switching of 6 position of piston is completed in this position；After piston 6 is switched to right position, the upper aperture of Zuo Tongkong 7 and the dislocation envelope of air inlet 3
It closes, lower aperture is opposite with gas vent 4 to connect, and left chamber, which can only be vented, is unable to air inlet, while the air inlet 3 in left side is by piston
The closing of 6 upper surfaces, the upper aperture of right through-hole 8 are connected with the air inlet 3 on right side, lower aperture and the dislocation closing of gas vent 4, right chamber
Air inlet cannot be vented, to realize the switching of left and right chamber air intake-exhaust；The indoor gas of left chamber passes through under the influence of air pressure
It is sprayed by left conduit, Zuo Tongkong 7, gas vent 4 and gas distribution plate 5, while the rotation of gas distribution plate 5 realizes that the alternating of exhaust pipe is connected and closed
It closes, the ejection of gas one one enters in expectoration vest, to realize the vibration of expectoration vest；In the same of left chamber's exhaust
When, air inlet in right chamber, the exhaust velocity of left chamber and the intake velocity of right chamber are set as at the same speed, so left chamber intraventricular pressure is strong
Be gradually reduced, the pressure of the lower section Zuo Zhusai 25 is gradually reduced, and right chamber intraventricular pressure is gradually increasing by force, the pressure of 34 lower section of right plunger by
Edge up height, and air pressure pushes right plunger 34 to move up, and right plunger 34 jacks up the right end of right lever 30, overcomes right 30 left end of lever
The elastic force of second right pressure spring 31 moves downward, and right 30 left end of lever moves downward through T-slot and right fixture block 26 is driven to move downward,
As the indoor air pressure of right chamber gradually rises, air pressure pulls right fixture block 26 gradually to move down by right plunger 34 and right lever 30, directly
It is exited outside right card slot 14 completely to right fixture block 26, at this time right fixture block 26 no longer limiting piston 6, since the indoor air pressure of right chamber is greater than
The indoor air pressure of left chamber, pressure difference by by the end-acted on piston 6 of left guide post 9 and right guide post 10, press in left and right by piston 6
It is moved to left under the action of difference, while piston 6 moves to left, right vertical bar 28 is moved to the left under the action of the first right pressure spring 29, thus band
It moves right cross bar 27 and moves to left and be inserted into the lateral blind hole 17 of right fixture block 26, right fixture block 26 is locked prevents it from popping up in this position；
When piston 6 is moved to the leftmost side fastly, 6 left contact of piston simultaneously pushes left riser to overcome the elastic force of the first left pressure spring 19 to moving to left
Dynamic, left riser drives left transverse slat to be moved to the left until exiting the lateral blind hole 17 of left fixture block 15 completely, and left card slot 13 is just at this time
It is moved to left 15 top of fixture block, at this time since the pressure of left 25 lower section of plunger is as the exhaust of left chamber is already less than the second left bullet
The elastic force of spring, 20 right end of lever left bounces under the action of the second left pressure spring 22, and the left pop-up of fixture block 15 sticks into left card slot 13, will
Piston 6 is positioned at this position, completes the switching of 6 position of piston, realizes that left chamber stores gas, right chamber exhaust, so circulation are realized
Gas is continual while pressurization to provide vibration pneumatic for expectoration vest in the indoor pressurization of left and right chamber and exhaust.
To adjust pressure when chamber indoor gas in left and right is discharged, then the left plunger 25 of actual participation work is needed replacing
With right plunger 34, for plunger closer to the fulcrum of lever, torque is shorter, then the elastic force of its pressure spring for overcoming the lever other end jacks up
Power needed for lever is bigger, accordingly below needed for air pressure it is bigger, i.e., piston 6 switch when the indoor pressure of chamber it is bigger, instead
It, plunger is remoter from fulcrum, and chamber inner pressure is smaller by force when piston 6 switches；Therefore only different plungers need to be controlled by operating stick 36
Under ball valve 35 open or close, that is, may be selected the work of which plunger, to adjust the pressure of discharge gas；Furthermore it is also possible to
Multiple plungers are worked at the same time to further decrease chamber indoor pressure when piston 6 switches, therefore passes through plunger position and quantity
Cooperation the purpose of multi-gear adjustment pressure can be realized, to meet the requirement of different users and service condition.
To the frequency of regulating gas vibration, turning for gas distribution plate 5 is adjusted by adjusting the revolving speed of 5 motor of gas distribution plate
Speed, the frequency for being turned on closing are accelerated or are reduced, i.e., the frequency of adjustable vibration pneumatic；For guarantee air intake-exhaust balance,
It needs the revolving speed of air pump being transferred to the revolving speed to match with gas distribution plate 5 while adjusting 5 revolving speed of gas distribution plate.
The present invention has the advantages that following significant ground:
The present invention is small in size, light portable；This is bright to have abandoned existing drive air film by mechanical reciprocation completely
Vibration generates the mode of vibration pneumatic, uses a kind of new way, i.e., the pressurized intermittent ejection of gas generates vibration
Gas；The present invention devises the chamber of left, center, right three, realizes that the inflation exhaust of left and right chamber switches by moving left and right for piston,
The control condition and power switched further through lever and fixture block using the indoor air pressure of chamber as piston, realizes cutting automatically for piston
It changes, thus realize that alternately inflation exhaust, gas realize intermittent discharge by gas distribution plate after chamber is indoor supercharged in the chamber of left and right,
To make expectoration vest generate vibration, casing rigidity need to be only improved, so that it may enough gas is filled in the shell space of very little,
The fluence and intensity of vibration pneumatic is also ensured while reducing volume.
The amplitude of vibration pneumatic, frequency are adjustable；The present invention along lever design can multiple plungers, cleverly using plunger from
The bigger characteristic of its remoter torque of balance pivot adjusts the strong size of chamber inner pressure needed for fixture block exits card slot, to adjust
Chamber indoor gas pressure intensity when piston switches realizes that pressure when chamber vent is adjusted, i.e., amplitude when adjustable gas vibrates
Intensity further increases adjustable extent moreover, passing through the combination of plunger quantity；In addition, being by the revolving speed for adjusting gas distribution plate
The frequency of adjustable gas vibration.
Present inventive concept is novel, and clever structure, volume is lightly portable, and amplitude-frequency is adjustable, and easy to adjust fast
Speed has significant progress compared to traditional sputum elimination machine Gas Vibration generating device.
Claims (6)
1. a kind of adjustable sputum elimination machine vibration pneumatic generating device, including shell (1), which is characterized in that be equipped in shell (1)
Shell (1) is divided into the chamber of left, center, right three by two pieces of vertical partitions (2), two pieces of partitions (2), there are two intermediate cavity upper end is opened
The air inlet (3) of left and right arrangement, lower end is provided with a gas vent (4), is equipped with gas distribution plate (5) at the aperture of gas vent (4)；In
Between the piston (6) that can be horizontally slipped is installed in chamber, the upper and lower surface of piston (6) is sliding with the upper and lower surface of intermediate cavity respectively
Dynamic to be bonded, left and right is provided with vertical left through-hole (7) and right through-hole (8) side by side on piston (6), sets respectively at left and right sides of piston (6)
There are lateral left guide post (9) and right guide post (10), left guide post (9) left end is protruded into left chamber, and right guide post (10) right end protrudes into the right side
In chamber, left cross-drilled hole (11) and right cross-drilled hole (12) are had in left guide post (9) and right guide post (10), left cross-drilled hole (11) connection is left
Chamber and Zuo Tongkong (7), right cross-drilled hole (12) connection right chamber and right through-hole (8)；Piston (6) bottom surface is provided with vertical left card slot
(13) and right card slot (14)；
The left cross bar (16) that is equipped with left fixture block (15) moving up and down in the bottom surface of intermediate cavity and can move left and right, Zuo Heng
Bar (16) is located on the left of left fixture block (15), is provided with lateral blind hole (17) on left fixture block (15), and left cross bar (16) right end can be inserted into cross
Into blind hole (17), left end is connected with the left vertical bar (18) stretched out on bottom surface, is equipped with the first left pressure spring on the left of left vertical bar (18)
(19)；It is equipped with below left fixture block (15) and it can be located in the lever left (20) of vertical rotation in surface, the fulcrum of lever left (20)
Midpoint, left fixture block (15) lower end connect with lever left (20) right end and can be equipped with along the long sliding of bar, lever left (20) right end
The left pressure spring of second be disposed below (22) is provided with the left air flue of lateral first (23), the first left air flue in intermediate cavity bottom surface
(23) left end and left chamber communicate, and right end is equipped with the second vertical left air flue (24), the second left air flue (24) lower end and first left side
Air flue (23) communicates, and is slidably fitted with left plunger (25) in the second left air flue (24), lever left (20) left end is pressed in left plunger
(25) on；In the bottom surface of intermediate cavity about its middle line be symmetrically installed with right fixture block (26), right cross bar (27), right vertical bar (28),
First right pressure spring (29), right lever (30), the second right pressure spring (31), the first right air flue (32), the second right air flue (33) He Youzhu
It fills in (34).
2. a kind of adjustable sputum elimination machine vibration pneumatic generating device according to claim 1, which is characterized in that described
Two left air flues (24) or so the fulcrum that is multiple and from left to right moving closer to lever left (20) that is arranged side by side, each second left air flue
(24) be mounted on a left plunger (25) in, the right air flue of described second (33) left and right be arranged side by side it is multiple and from right to left by
Gradually a right plunger (34) is mounted in the fulcrum of right lever (30), each second right air flue (33)；Each second is left
The ball valve (35) being located at below plunger is mounted in air flue (24) and the second right air flue (33).
3. a kind of adjustable sputum elimination machine vibration pneumatic generating device according to claim 2, which is characterized in that the ball
It is fixedly connected on valve (35) operating stick (36), shell (1) is stretched out outside in operating stick (36) one end.
4. a kind of adjustable sputum elimination machine vibration pneumatic generating device according to claim 1, which is characterized in that described matches
Gas disk (5) be it is discoid, multiple axial through-holes (37), multiple through-hole (37) circumference uniform distributions are provided on gas distribution plate (5).
5. a kind of adjustable sputum elimination machine vibration pneumatic generating device according to claim 1, which is characterized in that the left side
Sealing ring is mounted between guide post (9) and right guide post (10) and partition (2).
6. a kind of adjustable sputum elimination machine vibration pneumatic generating device according to claim 1, which is characterized in that the left side
Half section of a left side for half section of the right side of lever (20) and right lever (30) is grown along bar is provided with T-slot, under left fixture block (15) and right fixture block (26)
End has been respectively articulated with a T-block, and T-block is installed in T-slot and can rotate in same direction with lever.
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|---|---|---|---|
| CN201711129874.7A CN107638283B (en) | 2017-11-15 | 2017-11-15 | A kind of adjustable sputum elimination machine vibration pneumatic generating device |
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| CN201711129874.7A CN107638283B (en) | 2017-11-15 | 2017-11-15 | A kind of adjustable sputum elimination machine vibration pneumatic generating device |
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| CN107638283B true CN107638283B (en) | 2019-09-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112274410B (en) * | 2020-09-15 | 2023-02-21 | 湖南明康中锦医疗科技发展有限公司 | Slapping mechanism of expectoration undershirt |
| CN112972237B (en) * | 2021-02-02 | 2023-02-21 | 上海市嘉定区南翔医院 | Breathe vibrations sputum discharging ware |
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| CN202612230U (en) * | 2012-06-06 | 2012-12-19 | 浪能电力科研有限公司 | Fluid supercharging device |
| CN104624464A (en) * | 2014-12-31 | 2015-05-20 | 淄博前沿医疗器械有限公司 | Generating device for gas vibration of sputum excretion machine |
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