CN109276369A - A kind of ear canal air pressure balanced-type ear-drum recess correction suit - Google Patents
A kind of ear canal air pressure balanced-type ear-drum recess correction suit Download PDFInfo
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- CN109276369A CN109276369A CN201811335711.9A CN201811335711A CN109276369A CN 109276369 A CN109276369 A CN 109276369A CN 201811335711 A CN201811335711 A CN 201811335711A CN 109276369 A CN109276369 A CN 109276369A
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- ear canal
- earmuff
- sacculus
- shell
- cavity
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- 210000000613 ear canal Anatomy 0.000 title claims abstract description 163
- 210000003454 tympanic membrane Anatomy 0.000 title claims abstract description 58
- 206010042928 Syringomyelia Diseases 0.000 claims abstract description 48
- 210000004712 air sac Anatomy 0.000 claims abstract description 37
- 210000003128 head Anatomy 0.000 claims abstract description 22
- 238000002347 injection Methods 0.000 claims description 104
- 239000007924 injection Substances 0.000 claims description 104
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 239000010985 leather Substances 0.000 claims description 8
- 239000002775 capsule Substances 0.000 claims description 5
- 210000005069 ears Anatomy 0.000 claims description 2
- 210000001331 nose Anatomy 0.000 abstract description 41
- 230000008961 swelling Effects 0.000 abstract description 9
- 210000003928 nasal cavity Anatomy 0.000 abstract description 5
- 210000000959 ear middle Anatomy 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 206010019194 Head discomfort Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Acoustics & Sound (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Psychology (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The present invention relates to medical instruments fields, and in particular to a kind of ear canal air pressure balanced-type ear-drum recess correction suit, comprising: earmuff hack lever, ear canal guide-tube structure, nose guide-tube structure；The ear canal sacculus of ear canal conduit is filled in positioned at ear canal internal, first bladder joint is connected to by the first airsac tube with earmuff air bag, gas is injected to earmuff inside air bag, second bladder joint is communicated with ear canal sacculus by the second airsac tube, nose conduit is passed through from patient's nasal cavity, so that nose catheter proximal end enters inside syrinx and reaches at syrinx mouth apart from eardrum minimum distance position, then inflates and fill syrinx sacculus.Ear canal conduit passes through respective sacculus with nose conduit and fixes at this time, and the second barometric pipe lower end end of nose conduit is compressed closing, and syrinx sacculus completely cuts off syrinx swelling, so that the posterior region of eardrum is closed state.Pumpback is carried out by air pressure balance connector, eardrum restores under the action of the draught head of both ends to original shape, can be effectively improved otopiesis.
Description
Technical field
The present invention relates to medical instruments fields, in particular to a kind of ear canal air pressure balanced-type ear-drum recess jacket
Dress.
Background technique
Ear-drum is spatially subjected to displacement due to external force or certain, is recessed inwardly, and ear-drum invagination is clinically claimed.Suffer from ear
Hearing is influenced after membrane invagination, due to being organic displacement, medicine injection less effective, clinically doctor can enjoin patient frequent
Tight ear is sealed with palm, then like drawing shape quickly to unclamp, moment in ear canal is made to generate a negative pressure, is acted in this negative pressure
Under, ear-drum convex drum is once；Or nostril is blocked with finger, it suppresses without a break, with blowing hard, makes to generate a healthy tendency on the inside of ear-drum
Pressure, under the effect of this positive air pressure, ear-drum convex drum corrects ear-drum invagination with this.The above two method continuous improvement time
Short, since the negative pressure value of generation is too small, some patients cannot reach correction purpose for the former；The latter also often feels head discomfort,
Much patients are difficult to adhere to, less effective, and cure rate is low.
Interior patent publication No. is that CN2721057 discloses the utility model patent being recessed for treating ear-drum, the patent institute
The suction that description device is generated using manual pressing pressurizing ball and when replying by pressurizing ball is by earplug to patient's ear canal internal
Negative pressure is formed to solve ear-drum recess.But the method leans on merely earplug not block to form closed to patient's ear canal internal completely
State, at the same it is uncontrollable during generating negative pressure by the way of pressurizing ball reply, it may be too quickly right in suction in a flash
Patient's ear-drum causes uncontrollable damage.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide the ear canal air pressures that one kind can be effectively improved ear-drum recess
Balanced type ear-drum recess correction suit.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of ear canal air pressure balanced-type ear-drum recess correction suit provided by the invention, comprising: earmuff hack lever, ear canal conduit knot
Structure, nose guide-tube structure；The quantity of ear canal guide-tube structure is two, is symmetricly set at the both ends of earmuff hack lever, ear canal conduit knot
Structure includes: earmuff shell, earmuff air bag, the first airsac tube, the first bladder joint, ear canal conduit, ear canal sacculus, the first air pressure balance
Pipe, air pressure balance connector, the second airsac tube, the second bladder joint；Nose guide-tube structure includes: nose conduit, syrinx sacculus, third gas
Capsule pipe, third bladder joint, the second barometric pipe, balance pipe compress closure member；
Earmuff shell is in uncovered structure, and two earmuff shells are arranged at the both ends of earmuff hack lever and open relative orientation, earmuff air bag
It is arranged in earmuff shell；One end of first airsac tube is connected to earmuff air bag, and the other end is connected to the first bladder joint；Ear canal is led
Pipe is through earmuff shell and stretches out outside the opening of earmuff shell, and mutually independent first air pressure balance air stream is offered in ear canal conduit
Ear canal sacculus is arranged in road and the first inflatable chamber, the end stretched out on ear canal conduit outside earmuff shell opening；First air pressure balance is empty
The one end of flow channel far from ear canal sacculus is successively with the first barometric pipe, air pressure balance fittings, and the other end is across ear canal
It is got through after sacculus；The one end of first inflatable chamber far from ear canal sacculus is successively connected to the second airsac tube, the second bladder joint, another
End is connected to ear canal sacculus；
Mutually independent second air pressure balance air flow channel and the second inflatable chamber are offered in nose conduit, the end of nose conduit is set
Set syrinx sacculus；The one end of second air pressure balance air flow channel far from syrinx sacculus is connected to the second barometric pipe, the other end
It is got through after syrinx sacculus, balance pipe is provided on the second barometric pipe and compresses closure member by balance pipe compression closure member pair
It carries out compression closing；The one end of second inflatable chamber far from syrinx sacculus is successively connected to third airsac tube, third bladder joint,
The other end is connected to syrinx sacculus.
Further, suit further includes gas injection structure, and gas injection structure includes: two-chamber injection shell, coarse-pitch thread rotation
Bar, the first injection plug, fine thread spinner handle, the second injection plug, injection head；It is formed with the first sky along the longitudinal direction in two-chamber injection shell
Chamber and the second cavity, the second cavity are connected in two-chamber injection shell front end with the second cavity less than the first cavity, injection head setting, slightly
Tommy stretches to the first cavity and connects with the first injection plug, fine thread spinner handle after wearing from two-chamber injection shell rear end spiral
Including the thread segment being connected and optical axis section, successively spiral wears coarse-pitch thread spinner handle, the first injection to the thread segment of fine thread spinner handle
Plug, the optical axis section of fine thread spinner handle connect after wearing from the first cavity to the second cavity with the second injection plug, and two-chamber is injected on shell
The gas connection road of connection the first cavity front end and the second cavity front end is offered, is also provided on two-chamber injection shell positioned at first
The first gas inlet hole of cavity rear end, the second gas inlet hole positioned at the second cavity rear end, the first injection plug are pushed the
Gas connection road, first gas inlet hole can be blocked respectively when one cavity front and back end, the second injection plug is pushed second
Gas connection road, second gas inlet hole can be blocked respectively when cavity front and back end.
Further, the circular hole of connection the first cavity and the second cavity is offered on two-chamber injection shell, is arranged on circular hole
The optical axis section of leather sheath circle, fine thread spinner handle is threaded through in leather sheath circle.
Further, cursor is provided on the rear side pole wall that coarse-pitch thread spinner handle stretches out outside two-chamber injection shell.
Further, the knob with gear hobbing is provided on the rear side pole wall of fine thread spinner handle stretching coarse-pitch thread spinner handle.
Further, it includes: pressing cam shell, pressing cam that balance pipe, which compresses closure member,；It is covered on second barometric pipe
Equipped with pressing cam shell, pressing cam, which is hinged on pressing cam shell, carries out the second barometric pipe by pressing cam rotation
Compress closing.
Further, ear canal guide-tube structure further includes the soft set of ear canal gear, is stretched out outside earmuff shell opening on ear canal conduit
End sets gradually the soft set of ear canal gear, ear canal sacculus, and the soft set of ear canal gear is outer diameter from as low as big uncovered structure.
Further, air pressure balance connector, the second bladder joint are identical as the first bladder joint structure, the first bladder joint
Check valve is provided with for one-way joint, in the first bladder joint and for reacting the full air bag of filling degree.
Further, at circumference thickness intermediate thin shape after earmuff air bag is full.
Further, the quantity of earmuff hack lever is two, and two earmuff hack levers are circular arc strip and mutually cut with scissors dynamic connection, two
The lower end arc surface that a earmuff hack lever corresponds at the side of the patient crown has been respectively articulated with anti-bias tabletting, and the end of earmuff hack lever is set
It is equipped with universal ball end, universal base is provided on earmuff shell, is universal connection between universal ball end and universal base.
Ear canal air pressure balanced-type ear-drum recess correction suit of the invention, when use, fill in the ear canal sacculus of ear canal conduit
Positioned at ear canal internal.First bladder joint is connected to by the first airsac tube with earmuff air bag, injects gas to earmuff inside air bag,
Second bladder joint is communicated with ear canal sacculus by the second airsac tube, nose conduit is passed through from patient's nasal cavity, so that nose is led
Pipe front end enters inside syrinx and reaches at syrinx mouth apart from eardrum minimum distance position, then inflates and fills syrinx sacculus.
Ear canal conduit passes through respective sacculus with nose conduit and fixes at this time, and the second barometric pipe lower end end of nose conduit is compressed envelope
It closes, syrinx sacculus completely cuts off syrinx swelling, so that the posterior region of eardrum is closed state.Then by air pressure balance connector into
Row pumpback, so that region forms negative pressure between ear canal sacculus on front side of eardrum, eardrum is under the action of the draught head of both ends, recess
Shape is gradually sprung back, and is finally restored to original shape, simple and convenient practical, can be effectively improved otopiesis problem.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the application drawing that ear canal air pressure balanced-type ear-drum recess correction of the present invention is set with a kind of angle；
Fig. 2 is the application drawing that ear canal air pressure balanced-type ear-drum recess correction of the present invention is set with another angle；
Fig. 3 is the structure chart of ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal guide-tube structure of the present invention；
Fig. 4 is the front view of ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal guide-tube structure of the present invention；
Fig. 5 is the sectional view of ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal guide-tube structure of the present invention；
Fig. 6 is the structural schematic diagram that ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal sacculus of the present invention fills in ear canal；
Fig. 7 is the sectional view of Fig. 6；
Fig. 8 is the cutaway view of ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal conduit of the present invention；
Fig. 9 is ear canal air pressure balanced-type ear-drum recess correction suit a kind of cutaway view of angle of middle ear canal sacculus of the present invention；
Figure 10 is the cutaway view of ear canal air pressure balanced-type ear-drum recess correction suit middle ear canal sacculus another kind angle of the present invention；
Figure 11 is the structure chart of ear canal air pressure balanced-type ear-drum recess correction suit middle ear pipe sacculus of the present invention；
Figure 12 is the application drawing of gas injection structure in ear canal air pressure balanced-type ear-drum recess correction suit of the present invention；
Figure 13 is the structure chart of gas injection structure in ear canal air pressure balanced-type ear-drum recess correction suit of the present invention；
Figure 14 is the cutaway view of gas injection structure in ear canal air pressure balanced-type ear-drum recess correction suit of the present invention；
Wherein appended drawing reference are as follows: 1, earmuff hack lever；2, earmuff shell；3, earmuff air bag；4, the first airsac tube；5, the first air bag connects
Head；6, ear canal conduit；7, ear canal sacculus；8, the first barometric pipe；9, air pressure balance connector；10, the second airsac tube；11,
Two bladder joints；12, nose conduit；13, syrinx sacculus；14, third airsac tube；15, third bladder joint；16, the second air pressure is flat
Weighing apparatus pipe；17, the first air pressure balance air flow channel；18, the first inflatable chamber；19, the first inflating port；20, the second air pressure balance air
Runner；21, ear canal；22, syrinx；23, two-chamber injects shell；24, coarse-pitch thread spinner handle；25, the first injection plug；26, fine thread spinner handle；
27, circular hole；28, the second injection plug；29, injection head；30, the first cavity；31, the second cavity；32, gas connection road；33, first
Gas inlet hole；34, second gas inlet hole；35, leather sheath circle；36, cursor；37, knob；38, pressing cam shell；39, it presses
Tight cam；40, the soft set of ear canal gear；41, anti-bias tabletting；42, universal ball end；43, universal base；44, eardrum.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
As shown in Fig. 1 to 14, a kind of ear canal air pressure balanced-type ear-drum recess correction suit of the embodiment of the present invention, comprising:
Earmuff hack lever 1, ear canal guide-tube structure, nose guide-tube structure；The quantity of ear canal guide-tube structure is two, is symmetricly set on earmuff hack lever
At 1 both ends, ear canal guide-tube structure includes: that earmuff shell 2, earmuff air bag 3, the first airsac tube 4, the first bladder joint 5, ear canal are led
Pipe 6, ear canal sacculus 7, the first barometric pipe 8, air pressure balance connector 9, the second airsac tube 10, the second bladder joint 11；Nose is led
Pipe structure include: nose conduit 12, syrinx sacculus 13, third airsac tube 14, third bladder joint 15, the second barometric pipe 16,
Balance pipe compresses closure member；
Earmuff shell 2 is in uncovered structure, and two earmuff shells 2 are arranged at the both ends of earmuff hack lever 1 and open relative orientation, earmuff gas
Capsule 3 is arranged in earmuff shell 2；One end of first airsac tube 4 is connected to earmuff air bag 3, and the other end and the first bladder joint 5 connect
It is logical；Ear canal conduit 6 is through earmuff shell 2 and stretches out outside the opening of earmuff shell 2, and mutually independent first is offered in ear canal conduit 6
Air pressure balance air flow channel 17 and the first inflatable chamber 18 stretch out the end outside 2 opening of earmuff shell on ear canal conduit 6 and ear canal are arranged
Sacculus 7；First one end of air pressure balance air flow channel 17 far from ear canal sacculus 7 successively with the first barometric pipe 8, air pressure balance
Connector 9 is connected to, and the other end is got through after passing through ear canal sacculus 7；First one end of inflatable chamber 18 far from ear canal sacculus 7 is successively with second
Airsac tube 10, the connection of the second bladder joint 11, the other end are connected to ear canal sacculus 7；
Mutually independent second air pressure balance air flow channel 20 and the second inflatable chamber, the end of nose conduit 12 are offered in nose conduit 12
Syrinx sacculus 13 is set at portion；The one end of second air pressure balance air flow channel 20 far from syrinx sacculus 13 and the second barometric pipe
16 connection, the other end pass through syrinx sacculus 13 after get through, be provided on the second barometric pipe 16 balance pipe compress closure member by
Balance pipe compresses closure member and carries out compression closing to it；The one end of second inflatable chamber far from syrinx sacculus 13 successively with third air bag
Pipe 14, third bladder joint 15 are connected to, and the other end is connected to syrinx sacculus 13.
Ear canal air pressure balanced-type ear-drum recess correction suit of the invention, when use, fill in the ear canal sacculus 7 of ear canal conduit 6
Enter to be located inside ear canal 21.First bladder joint 5 is connected to by the first airsac tube 4 with earmuff air bag 3, inside earmuff air bag 3
Gas is injected, the second bladder joint 11 is communicated with ear canal sacculus 7 by the second airsac tube 10, by nose conduit 12 out of patient nasal cavity
Portion is passed through, so that 12 front end of nose conduit enters the inside of syrinx 22 and reaches at 22 mouthfuls of syrinx apart from 44 minimum distance position of eardrum,
Then it inflates and fills syrinx sacculus 13.Ear canal conduit 6 is fixed by respective sacculus with nose conduit 12 at this time, by nose conduit 12
16 lower end end of the second barometric pipe compress closing, syrinx sacculus 13 by 22 swelling of syrinx completely cut off so that after eardrum 44
Side region is closed state.Then pumpback is carried out by air pressure balance connector 9, so that between 44 front side of eardrum and ear canal sacculus 7
Region forms negative pressure, and under the action of the draught head of both ends, concave shape is gradually sprung back eardrum 44, and is finally restored to initial shape
Shape, it is simple and convenient practical, 44 depression problem of eardrum can be effectively improved.
In as a preferred technical scheme, suit further includes gas injection structure, and gas injection structure includes: two-chamber injection
Shell 23, the injection of coarse-pitch thread spinner handle 24, first plug 25, the injection plug of fine thread spinner handle 26, second 28, injection head 29；Two-chamber injects shell
The first cavity 30 and the second cavity 31 are formed in 23 along the longitudinal direction, the second cavity 31 is less than the first cavity 30, injection head 29
Setting is connected in two-chamber injection 23 front end of shell with the second cavity 31, and coarse-pitch thread spinner handle 24 is worn from two-chamber injection 23 rear end spiral of shell
After stretch to the first cavity 30 and 25 connect with the first injection plug, fine thread spinner handle 26 includes the thread segment and optical axis that are connected
Section, successively spiral wears the injection of coarse-pitch thread spinner handle 24, first plug 25, the light of fine thread spinner handle 26 to the thread segment of fine thread spinner handle 26
Shaft part is connect after wearing from the first cavity 30 to the second cavity 31 with the second injection plug 28, offers connection on two-chamber injection shell 23
The gas connection road 32 of first cavity, 30 front end and 31 front end of the second cavity, two-chamber, which is injected, to be also provided with positioned at the first sky on shell 23
The first gas inlet hole 33 of 30 rear end of chamber, the second gas inlet hole 34 positioned at 31 rear end of the second cavity, the first injection plug 25
Promotion can respectively block gas connection road 32, first gas inlet hole 33 at the first 30 front and back end of cavity, the second note
Can respectively gas connection road 32, second gas inlet hole 34 be blocked at the second 31 front and back end of cavity by penetrating 28 promotion of plug.
Having for cooperation inflation can carry out the gas injection structure that thickness double helix adjusts injection, outside the gas injection structure
Shell is that two-chamber injects shell 23, and the two-chamber that two-chamber injects shell 23 is cylindrical cavity, and is internal diameter compared with the second cavity 31 by front end, is leaned on
Rear end is internal diameter compared with the first cavity 30, and two chambers all have certain length.In the cavity wall of the first cavity 30 and the second cavity 31
On have a first gas inlet hole 33 and second gas inlet hole 34, first gas inlet hole 33 and second gas inlet hole
34 are located at the root of 31 tube wall of the first cavity 30 and the second cavity.The first cavity 30 and the second cavity of two-chamber injection shell 23
31 front end is interconnected by the gas connection road 32 inside tube wall.It is located at the first cavity in the rear end of two-chamber injection shell 23
30 rear end is provided with threaded hole, coarse-pitch thread spinner handle 24 is combined on the threaded hole of the rear end of two-chamber injection shell 23, in thick spiral shell
The front end of line spinner handle 24 is fixedly connected with the first injection plug 25, and the first injection plug 25 is rubber material, passes through rotation coarse-pitch thread rotation
Bar 24 can push the first injection plug 25 the according to the screw thread socket relationship between coarse-pitch thread spinner handle 24 and two-chamber injection shell 23
It is moved axially inside one cavity 30, because the first injection plug 25 can cooperate the first cavity 30 to completely cut off air for rubber material,
Coarse-pitch thread spinner handle 24 and the first injection plug 25 run through along axis is provided with fine thread hole, injects in coarse-pitch thread spinner handle 24 and first
The fine thread hole screw thread of plug 25 is socketed with fine thread spinner handle 26, the corresponding coarse-pitch thread spinner handle 24 of fine thread spinner handle 26 and injection plug area
Domain is provided with thread segment, is optical axis in the front end of leaning on of fine thread spinner handle 26, and the optical axis length of fine thread spinner handle 26 is longer than second
The length of cavity 31 is coaxially fixed with the second injection plug 28, the second injection plug 28 in the front end end point of fine thread spinner handle 26
Inside the second cavity 31, when the second injection plug 28 is moved to front end from rear end inside the second cavity 31.
When the first injection plug 25 and the second injection plug 28 are respectively moved to the rear end of the first cavity 30 and the second cavity 31,
Just first gas inlet hole 33 and the formation of second gas inlet hole 34 are blocked, when the second injection plug 28 is moved to two-chamber injection
When the second 31 interior forward end of cavity of shell 23, gas connection road 32 can be formed in the port of the second cavity 31 and be blocked, so that
Before first gas inlet hole 33 and second gas inlet hole 34 fill in 28 without departing from the first injection plug 25 and the second injection always
End, the port of corresponding first cavity 30 and the second cavity 31 will not be located at the first injection always and fill in 25 and the on gas connection road 32
The rear end of two injection plugs 28.Gas connection road 32 can balance empty in 30 inside the first injection 25 front ends of plug of the first cavity and second
31 inside the second injection 28 front end air pressures of plug of chamber.First gas inlet hole 33 and second gas inlet hole 34 can guarantee the first note
Penetrate the balance of plug 25 and the second injection 28 two side areas air pressures of plug.It is communicated with injection head 29 in 29 front end face of two-chamber injection head, is made
Thick micro- double adjust is carried out by coarse-pitch thread spinner handle 24 and fine thread spinner handle 26 inflation can be attached to above-mentioned all kinds of connectors.
In as a preferred technical scheme, the first cavity 30 of connection and second cavity 31 are offered on two-chamber injection shell 23
Circular hole 27 is arranged with leather sheath circle 35 on circular hole 27, and the optical axis section of fine thread spinner handle 26 is threaded through in leather sheath circle 35.Between the two chambers
It is provided with the connection of circular hole 27, leather sheath circle 35 is cased in 27 outer ring of circular hole, is fine thread spinner handle 26 throughout inside leather sheath circle 35
Optical axis section.
In as a preferred technical scheme, it is provided on the rear side pole wall that coarse-pitch thread spinner handle 24 stretches out outside two-chamber injection shell 23
Cursor 36.It is symmetrical arranged on the rear side pole wall of coarse-pitch thread spinner handle 24 there are two cursor 36, it can by control cursor 36
To be rotated to coarse-pitch thread spinner handle 24.
In as a preferred technical scheme, band is provided on the rear side pole wall of the stretching coarse-pitch thread spinner handle 24 of fine thread spinner handle 26
There is the knob 37 of gear hobbing.The knob 37 that circumference has gear hobbing is fixedly and coaxially connected in 26 rear end of fine thread spinner handle.It is revolved by control
Button 37, which can rotate fine thread spinner handle 26, makes the second injection plug 28 in 31 inner rotation of the second cavity.
In as a preferred technical scheme, it includes: pressing cam shell 38, pressing cam 39 that balance pipe, which compresses closure member,；The
Pressing cam shell 38 is arranged on two barometric pipes 16, pressing cam 39, which is hinged on pressing cam shell 38, passes through pressing cam
39 rotations carry out compression closing to the second barometric pipe 16.Second barometric pipe, 16 back-end region is cased with pressing cam shell
38, pressing cam 39 is hinged on pressing cam shell 38, can compress to pressing cam 39 by rotation pressing cam 39 makes
Second barometric pipe 16 is converted to closed state.
In as a preferred technical scheme, ear canal guide-tube structure further includes the soft set 40 of ear canal gear, is stretched out on ear canal conduit 6
End outside 2 opening of earmuff shell sets gradually the soft set 40 of ear canal gear, ear canal sacculus 7, and the soft set 40 of ear canal gear is outer diameter from small
To big uncovered structure.The soft set 40 of ear canal gear, ear canal are fixed with from the ear canal conduit 6 extended on the inside of 21 air bag of ear canal
The soft set 40 of gear be silica gel material, have stronger flexible characteristic, and the soft set 40 of ear canal gear from inner end to outboard end be outer
Diameter is designed from as low as big uncovered structure, and the soft set 40 of ear canal gear can fill in swelling fixation to 21 mouthfuls of patient's ear canal and keep off
Position.
In as a preferred technical scheme, 5 structure of air pressure balance connector 9, the second bladder joint 11 and the first bladder joint
Identical, the first bladder joint 5 is one-way joint, is provided with check valve in the first bladder joint 5 and for reacting filling degree
Full air bag.Air pressure balance connector 9 and 11 structure of the second bladder joint are consistent with the first bladder joint 5.First bladder joint 5 is
One-way joint, is fixedly installed check valve inside the first bladder joint 5, and 5 root position of the first bladder joint is provided with simultaneously
Full air bag, full air bag are equally connected to the first airsac tube 4, allow to the filling degree by filling air bag to react ear
The full situation of cover air bag 3.
In as a preferred technical scheme, at circumference thickness intermediate thin shape after earmuff air bag 3 is full.When earmuff air bag 3 is full
The shape of circumference thickness intermediate thin is formed after the completion, it is next to patient's ear cover to meet ergonomics.
In as a preferred technical scheme, the quantity of earmuff hack lever 1 is two, two earmuff hack levers 1 be circular arc strip and
The mutually dynamic connection of hinge, the lower end arc surface that two earmuff hack levers 1 correspond at the side of the patient crown have been respectively articulated with anti-bias tabletting 41,
The end of earmuff hack lever 1 is provided with universal ball end 42, and universal base 43, universal ball end 42 and universal base are provided on earmuff shell 2
It is universal connection between 43.
The problems such as this suit is mainly used for 21 internal balance air pressure of ear canal, and treatment eardrum 44 is recessed.Two earmuff hack levers 1 are equal
It for circular arc strip and mutually cuts with scissors to move and connect, it, can be similar to headphone shape from the beginning when two earmuff hack levers 1 hingedly open
At top at arc-shaped bend to patient's ears.It corresponds in two 1 lower end arc surfaces of earmuff hack lever and is respectively articulated at the side of the patient crown
There is anti-bias tabletting 41, when patient's headband, anti-bias tabletting 41 and the earmuff hack lever 1 hinged with it intersect, and anti-bias tabletting 41 has
Certain elastic deformation characteristic and anti-bias are thereon silica gel material, anti-bias tabletting 41 and earmuff with the binding face of patients head
Allow to carry out slight angle adjustment between hack lever 1 according to the difference of patient's head dummy using the dynamic connection of hinge, can be applicable in
In different patients.Medial surface at two 1 both ends of earmuff hack lever is fixedly installed universal ball end 42, is cased on universal ball end 42
Universal base 43, universal base 43 extract region more than 42 half of universal ball end, so that being ten thousand between universal ball end 42 and universal base 43
To connection.Fitting is fixedly connected with earmuff shell 2 on universal base 43, two 2 positions of earmuff shell connected on two earmuff hack levers 1
Symmetrically, it is in uncovered structure that earmuff shell 2 is whole, and there is earmuff shell 2 certain intensity to be unlikely to deform.
Specifically, it is glued with earmuff air bag 3 inside earmuff shell 2, the first airsac tube 4 is communicated on earmuff air bag 3, the
One airsac tube 4 extends to the outside of earmuff shell 2 through earmuff shell 2, is fixedly connected with the in the outside end point of the first airsac tube 4
One bladder joint 5, through there is an ear canal conduit 6 on earmuff shell 2 and earmuff air bag 3, ear canal conduit 6 is from earmuff air bag 3 towards ear
It is extended vertically through out at the center of piece one side, so that the inner end end of ear canal conduit 6 can be accurately passed through in patient's ear canal 21.
The region that ear canal conduit 6 extends the soft set 40 of ear canal gear is cased with ear canal sacculus 7, can be in ear canal 21 after ear canal sacculus 7 is full
Internal swelling is fixed, and ear canal conduit 6 is allowed to protrude into 21 inner section of ear canal and keep relatively fixed and will not rock.In ear
6 end of road conduit to end tail region domain is internally provided with two mutually independent chambers, and a chamber is the first air pressure balance air flow channel
17, another chamber is the first inflatable chamber 18, and the first inflatable chamber 18 is opened in 6 end point of ear canal conduit and closed at the tail of end,
The first inflating port 19 is provided between 7 inner wall of the first inflatable chamber 18 and ear canal sacculus of corresponding 7 interior zone of ear canal sacculus.First gas
It flattens weighing apparatus air flow channel 17 to penetrate through simultaneously at 6 both ends of ear canal conduit, so that from 6 the first air pressure balance air stream of inside of ear canal conduit
17 end point of road is filled with gas and can be open from 6 end tail of ear canal conduit to the conveying of 21 deep inside eardrum of patient's ear canal, 44 side
Air pressurized.The first air pressure balance air flow channel 17 in 6 end point of ear canal conduit connects respectively with 18 end point of the first inflatable chamber
It is connected with the first barometric pipe 8 and the second airsac tube 10, fixation is communicated with the second bladder joint in 10 end point of the second airsac tube
11, air pressure balance connector 9 is communicated in the end point of the first barometric pipe 8, it is universal on two earmuff hack levers 1 being hinged
2 internal structure of earmuff shell of the universal socket of bulb 42 is completely the same.
There is nose guide-tube structure with what ear canal guide-tube structure used simultaneously, logical inside nose conduit 12 there are two mutually independent
Inner cavity, one is the second inflatable chamber, and the second inflatable chamber is got through in 12 end point of nose conduit and closed at the tail of inner end, second
Inflatable chamber is provided with the second inflating port on the tube wall of end point, is provided with the tube wall area of the second inflating port in 12 front end tube wall of nose conduit
Domain can fill the inflation of the second inflatable chamber through there is syrinx sacculus 13 by the second inflating port to syrinx sacculus 13.Separately
One independent chamber is the second air pressure balance air flow channel 20, the second air pressure balance air flow channel 20 12 both ends of nose conduit simultaneously
Perforation, so that nose conduit 12 is passed through from nasal cavity and extends to 22 inside eardrum of syrinx, 44 neighbouring position, passes through the second air pressure
Equilibrium air runner 20 is from 22 delivered inside gas balance eardrum of syrinx, 44 two sides air pressure.It can be in ear after syrinx sacculus 13 is full
22 inside swelling of pipe is fixed, and 12 front end of nose conduit is made to keep relatively fixed with syrinx 22.In 12 the second inflatable chamber of inside of nose conduit
Rear end end point is communicated with third airsac tube 14, and the end fixation of third airsac tube 14 is communicated with third bladder joint 15, passes through
Third bladder joint 15 can be filled to inside syrinx sacculus 13.After 12 the second air pressure balance air flow channel 20 of inside of nose conduit
End end point is communicated with the second barometric pipe 16.
When the appearance recess symptom of patient Er Nei eardrum 44, two earmuff hack levers 1 in the suit are unfolded, by the ear at both ends
Housing 2 covers on ear, and the soft set 40 of ear canal gear of 2 inside of earmuff shell is filled in 21 mouthfuls of progress gears of ear canal, at this time
The ear canal sacculus 7 of ear canal conduit 6 is similarly positioned in inside ear canal 21.Because the first bladder joint 5 passes through the first airsac tube 4 and earmuff
Air bag 3 is connected to, and the injection head 29 of gas injection structure is connected to the first bladder joint 5 to injecting gas inside earmuff air bag 3,
At the initial stage to 3 injected gas of earmuff air bag, quickly push the first injection plug 25 in the first sky by rotation coarse-pitch thread spinner handle 24
Chamber 30 axially inside moves, and 30 internal gas of the first cavity is allowed to enter to the second cavity 31 by gas connection road 32
Inside, and injected inside earmuff air bag 3 by injection head 29, it is completed between earmuff shell 2 and head after earmuff air bag 3 is full
It is fixedly clamped.Then gas injection structure is connected into the second bladder joint 11 and gas, the second bladder joint 11 is injected to its inside
Ear canal sacculus 7 is communicated with by the second airsac tube 10.Because of 7 small volume of ear canal sacculus, need to be carried out by fine thread spinner handle 26
It promotes at a slow speed and ear canal sacculus 7 is inflated up to full, so that ear canal sacculus 7 in the patient fix by portion's swelling, so that
Ear canal conduit 6 keeps relatively fixed inside ear canal 21.
Nose conduit 12 is passed through from patient's nasal cavity, so that 12 front end of nose conduit enters 22 inside of syrinx and reaches syrinx
Apart from 44 minimum distance position of eardrum at 22 mouthfuls.Then gas injection structure is connected to the third bladder joint 15 of nose conduit 12,
Syrinx sacculus 13 is filled by above-mentioned 26 propulsion mode of fine thread spinner handle.Ear canal conduit 6 and nose conduit 12 are by each at this time
It is fixed from sacculus, makes it by the second gas the rotation of pressing cam 39 of the 16 lower end end point of the second barometric pipe of nose conduit 12
Balance pipe 16 is pressed to compress, so that syrinx sacculus 13 completely cuts off 22 swelling of syrinx, so that the posterior region of eardrum 44 is closed state.
Then gas injection structure is connected into air pressure balance connector 9, makes fine thread spinner handle 26 relative to thick spiral shell by turning knob 37
Line spinner handle 24 rotates, and extreme direction returns second injection of the drive of fine thread spinner handle 26 plug 28 axially rearward under the relationship of screw thread socket
It takes out, so that region forms negative pressure between 44 front side of eardrum and ear canal sacculus 7, eardrum 44 is recessed under the action of the draught head of both ends
Sunken shape is gradually sprung back, and is finally restored to original shape.
Innovative technology point of the invention and beneficial effect at least that:
1. the front end area of ear canal conduit 6 is successively cased with the soft set 40 of ear canal gear and ear canal sacculus 7, the soft set 40 of ear canal gear is used
Silica gel material, and integral into open loudspeaker opening shape outward, it is convenient in 21 mouthfuls of progress gears of patient's ear canal, ear canal ball
Capsule 7 is connected to by the first inflating port 19 of 6 tube wall of ear canal conduit with its first internal inflatable chamber 18, and ear canal sacculus 7 is passed through
It is full to keep ear canal conduit 6 fixed the 21 inside swelling of patient's ear canal.
2. 6 the first air pressure balance air flow channel 17 of inside of ear canal conduit and the first inflatable chamber 18 are mutually indepedent, the first air pressure
Equilibrium air runner 17 6 inside front and back end of ear canal conduit penetrate through and the first inflatable chamber 18 6 front end end point of ear canal conduit seal
It closes, and rear end end point is respectively communicated with the first barometric pipe 8 and fills respectively to different inner cavities from the second airsac tube 10
Pumping enables ear canal conduit 6 to be respectively completed fixed two effects with to 21 internal air exhausting of ear canal formation negative pressure.
3. equally there are two chambers of 6 foregoing description of ear canal conduit inside nose conduit 12, and ear is cased in 12 front end of nose conduit
Pipe sacculus 13 enables nose conduit 12 to be respectively completed inside syrinx 22 fixed and form closing sky to 44 posterior region of eardrum
Between two effects so that the recess of eardrum 44 can complete the effect of rebound in the case where negative pressure on the outside.
4. gas injection structure screw thread is socketed with coarse-pitch thread spinner handle 24,24 screw thread of coarse-pitch thread spinner handle is socketed with fine thread spinner handle
26, and 25 the second 28 points of injection plugs being fixedly connected with fine thread spinner handle 26 are filled in the first injection that coarse-pitch thread spinner handle 24 is fixedly connected
Not Wei Yu two-chamber injection shell 23 inside the first cavity 30 and the second cavity 31 inside.First cavity 30 and the second cavity 31 are mutually
The gas connection road 32 of connection can enable gas injection structure to realize that coarse-pitch thread adjusts injection and adjusts with fine thread respectively
Injection.And the effect of micro propulsion and pumpback may be implemented in such a way that screw thread is socketed screw propulsion, avoid thrust or pulling force
It is excessive that patient's eardrum 44 is damaged.First gas inlet hole 33 and second gas inlet hole 34 are for balancing two-chamber injection shell
The effect of 23 air pressure insides goes on smoothly propulsion with pumpback.
5. being fixed with earmuff air bag 3,3 periphery protrusion intermediate region of earmuff air bag recess symbol in 2 medial surface of earmuff shell abutting
It closes ergonomic structure when compressing patient's ear to design, can prevent earmuff air bag 3 from clamping a unstable left side after full
The case where right side is rocked appearance, and the first airsac tube 4 and the first bladder joint 5 that earmuff air bag 3 is connected to may be implemented to earmuff gas
3 inner inflatable of capsule.
6. the earmuff bar structure design hinged using two 1 segmenteds of earmuff hack lever, convenient for that can be rolled over after use
It stacks and sets.It is respectively symmetrically hinged with anti-bias tabletting 41 in two sections of 1 medial surfaces of earmuff hack lever, anti-bias tabletting 41 has certain elasticity
Deformation characteristic and anti-bias are thereon silica gel material with the binding face of patients head, adopt between anti-bias tabletting 41 and earmuff hack lever 1
Allow to carry out slight angle adjustment according to the difference of patient's head dummy with the dynamic connection of hinge, can be adapted for different trouble
Person.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of ear canal air pressure balanced-type ear-drum recess correction suit characterized by comprising earmuff hack lever, ear canal conduit knot
Structure, nose guide-tube structure；The quantity of the ear canal guide-tube structure is two, is symmetricly set at the both ends of the earmuff hack lever, institute
State ear canal guide-tube structure include: earmuff shell, earmuff air bag, the first airsac tube, the first bladder joint, ear canal conduit, ear canal sacculus,
First barometric pipe, air pressure balance connector, the second airsac tube, the second bladder joint；The nose guide-tube structure includes: that nose is led
Pipe, syrinx sacculus, third airsac tube, third bladder joint, the second barometric pipe, balance pipe compress closure member；
The earmuff shell is in uncovered structure, and two earmuff shells are arranged at the both ends of the earmuff hack lever and open opposite court
To the earmuff air bag is arranged in the earmuff shell；One end of first airsac tube is connected to the earmuff air bag, another
End is connected to first bladder joint；The ear canal conduit is through the earmuff shell and stretches out outside the opening of the earmuff shell,
Mutually independent first air pressure balance air flow channel and the first inflatable chamber are offered in the ear canal conduit, on the ear canal conduit
The ear canal sacculus is arranged in the end stretched out outside the earmuff shell opening；The first air pressure balance air flow channel is far from described
One end of ear canal sacculus is successively with first barometric pipe, air pressure balance fittings, and the other end is across the ear canal ball
It is got through after capsule；The one end of first inflatable chamber far from the ear canal sacculus successively connects with second airsac tube, the second air bag
Head connection, the other end are connected to the ear canal sacculus；
Mutually independent second air pressure balance air flow channel and the second inflatable chamber are offered in the nose conduit, the nose conduit
The syrinx sacculus is arranged in end；The one end of the second air pressure balance air flow channel far from the syrinx sacculus and described the
The connection of two barometric pipes, the other end are got through after passing through the syrinx sacculus, are provided on second barometric pipe described
Balance pipe compresses closure member and carries out compression closing to it by balance pipe compression closure member；Second inflatable chamber is far from described
One end of syrinx sacculus is successively connected to the third airsac tube, third bladder joint, and the other end is connected to the syrinx sacculus.
2. suit according to claim 1, which is characterized in that the suit further includes gas injection structure, the gas
Injection structure includes: two-chamber injection shell, coarse-pitch thread spinner handle, the first injection plug, fine thread spinner handle, the second injection plug, injection head；Institute
It states in two-chamber injection shell and is formed with the first cavity and the second cavity along the longitudinal direction, it is empty that second cavity is less than described first
Chamber, injection head setting are connected in two-chamber injection shell front end with second cavity, and the coarse-pitch thread spinner handle is from described
Two-chamber injection shell rear end spiral stretches to first cavity and connects with the first injection plug, the fine thread rotation after wearing
Bar includes the thread segment being connected and optical axis section, and successively spiral wears the coarse-pitch thread rotation to the thread segment of the fine thread spinner handle
Bar, first injection plug, the optical axis section of the fine thread spinner handle wear from first cavity to second cavity after with it is described
Second injection plug connection, the two-chamber inject the gas that connection first cavity front end and the second cavity front end is offered on shell
Communication channel, the two-chamber, which is injected, is also provided with the first gas inlet hole positioned at first cavity rear end, positioned at described on shell
The second gas inlet hole of second cavity rear end, the first injection plug is pushed can be right respectively at the first cavity front and back end
The gas connection road, first gas inlet hole are blocked, and the second injection plug is pushed in second cavity front and back end
When the gas connection road, second gas inlet hole can be blocked respectively.
3. suit according to claim 2, which is characterized in that it is empty to offer connection described first on the two-chamber injection shell
The circular hole of chamber and the second cavity is arranged with leather sheath circle on the circular hole, and the optical axis section of the fine thread spinner handle is threaded through the skin
In lasso.
4. suit according to claim 3, which is characterized in that the coarse-pitch thread spinner handle stretches out outside the two-chamber injection shell
Cursor is provided on side pole wall afterwards.
5. suit according to claim 3, which is characterized in that after the fine thread spinner handle stretches out the coarse-pitch thread spinner handle
The knob with gear hobbing is provided on side pole wall.
6. suit according to claim 1, which is characterized in that the balance pipe compress closure member include: pressing cam shell,
Pressing cam；The pressing cam shell is arranged on second barometric pipe, the pressing cam is hinged on the compression
Compression closing is carried out to second barometric pipe by pressing cam rotation on cam shell.
7. suit according to claim 1, which is characterized in that the ear canal guide-tube structure further includes the soft set of ear canal gear,
The end stretched out outside the earmuff shell opening on the ear canal conduit sets gradually the soft set of the ear canal gear, ear canal sacculus, institute
Stating the soft set of ear canal gear is outer diameter from as low as big uncovered structure.
8. suit according to claim 1, which is characterized in that the air pressure balance connector, the second bladder joint with it is described
First bladder joint structure is identical, and first bladder joint is one-way joint, is provided in first bladder joint unidirectional
Valve and for reacting the full air bag of filling degree.
9. suit according to claim 1, which is characterized in that at circumference thickness intermediate thin shape after the earmuff air bag is full.
10. suit according to claim 1, which is characterized in that the quantity of the earmuff hack lever is two, two ears
Cage bar is circular arc strip and the mutually dynamic connection of hinge, two earmuff hack levers correspond to the lower end arc surface at the side of the patient crown
It is respectively articulated with anti-bias tabletting, the end of the earmuff hack lever is provided with universal ball end, is provided on the earmuff shell universal
Seat, is universal connection between the universal ball end and the universal base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335711.9A CN109276369A (en) | 2018-11-11 | 2018-11-11 | A kind of ear canal air pressure balanced-type ear-drum recess correction suit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811335711.9A CN109276369A (en) | 2018-11-11 | 2018-11-11 | A kind of ear canal air pressure balanced-type ear-drum recess correction suit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109276369A true CN109276369A (en) | 2019-01-29 |
Family
ID=65175328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811335711.9A Pending CN109276369A (en) | 2018-11-11 | 2018-11-11 | A kind of ear canal air pressure balanced-type ear-drum recess correction suit |
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|---|---|
| CN (1) | CN109276369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474727A (en) * | 2020-05-28 | 2020-07-31 | Oppo广东移动通信有限公司 | Stressed piece and head-mounted equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000018341A1 (en) * | 1998-09-29 | 2000-04-06 | Safe Dive Ltd. | Diving mask supplemented with a device for equalizing pressure across the eardrum of divers |
| CN101862726A (en) * | 2010-07-02 | 2010-10-20 | 华德塑料制品有限公司 | Injection cylinder |
| US20130211441A1 (en) * | 2010-10-22 | 2013-08-15 | Abigo Medical Ab | Device for Equalization of the Pressure in the Middle Ear |
| CN209187196U (en) * | 2018-11-11 | 2019-08-02 | 常笑颖 | A kind of ear canal air pressure balanced-type ear-drum recess correction suit |
-
2018
- 2018-11-11 CN CN201811335711.9A patent/CN109276369A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000018341A1 (en) * | 1998-09-29 | 2000-04-06 | Safe Dive Ltd. | Diving mask supplemented with a device for equalizing pressure across the eardrum of divers |
| CN101862726A (en) * | 2010-07-02 | 2010-10-20 | 华德塑料制品有限公司 | Injection cylinder |
| US20130211441A1 (en) * | 2010-10-22 | 2013-08-15 | Abigo Medical Ab | Device for Equalization of the Pressure in the Middle Ear |
| JP2013543744A (en) * | 2010-10-22 | 2013-12-09 | アビゴ メディカル エービー | Device for equalizing pressure in the middle ear |
| CN209187196U (en) * | 2018-11-11 | 2019-08-02 | 常笑颖 | A kind of ear canal air pressure balanced-type ear-drum recess correction suit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111474727A (en) * | 2020-05-28 | 2020-07-31 | Oppo广东移动通信有限公司 | Stressed piece and head-mounted equipment |
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