CN107049600A - A kind of ear drum membrane therapeutic system - Google Patents
A kind of ear drum membrane therapeutic system Download PDFInfo
- Publication number
- CN107049600A CN107049600A CN201710386949.3A CN201710386949A CN107049600A CN 107049600 A CN107049600 A CN 107049600A CN 201710386949 A CN201710386949 A CN 201710386949A CN 107049600 A CN107049600 A CN 107049600A
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- CN
- China
- Prior art keywords
- drainage tube
- indwelling drainage
- puncture needle
- indwelling
- guide groove
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- 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
- A61F11/20—Ear surgery
-
- 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
- A61F11/20—Ear surgery
- A61F11/202—Surgical middle-ear ventilation or drainage, e.g. permanent; Implants therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/64—Containers with integrated suction means
- A61M1/67—Containers incorporating a piston-type member to create suction, e.g. syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M3/00—Medical syringes, e.g. enemata; Irrigators
- A61M3/02—Enemata; Irrigators
- A61M3/0279—Cannula; Nozzles; Tips; their connection means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0662—Ears
- A61M2210/0668—Middle ear
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Vascular Medicine (AREA)
- Psychology (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Otolaryngology (AREA)
- Biophysics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a kind of ear drum membrane therapeutic system, including supporting construction, supporting construction includes the skeleton and support base of arcuate structure, circular end face is formed between skeleton and support base, the guide groove for limiting indwelling drainage tube movement locus is provided with support base, indwelling drainage tube is columnar structured, middle part is that pre-and post perforative through hole is used for the entrance of puncture needle, indwelling drainage tube is stretched into by the guide groove set in support base, the bottom of guide groove sets stopper slot, set on stopper slot and indwelling drainage tube it is convex it is stupefied coordinate limitation indwelling drainage tube go deep into length, the dip section of indwelling drainage tube is provided with concentric dosing holes, for coordinating with the dosing holes that puncture needle front end is set；By being provided with the guide groove for limiting indwelling drainage tube movement locus on support base, define that indwelling drainage tube stretches into the track of duct, so as to avoid medical personnel in therapeutic process is carried out, because the secondary injury that experience or other factors are caused, it is ensured that therapeutic effect.
Description
Technical field
The invention belongs to ear-nose-throat department therapeutic appliance technical field, more particularly to a kind of ear drum membrane therapeutic system, for ear
Auripuncture and administration, flushing, treatment, human ear inflammation in ear drum membrane need a kind of not damaged treatment dress during puncture for treating
Put.
Background technology
All the time, in otorhinolaryngologic patient, tympanitis patient is a lot, and secreting type tympanitis is wherein more normal
The one kind seen, secretory otitis media is the middle ear apyetous inflammatory disease being characterized with middle ear effusion and Hearing, also known as
For exudative otitis media, nonsuppurative otitis media, mucus tympanitis, catarrhal otitis media, hydrotympanum, serosity middle ear
Inflammation, slurries-mucus tympanitis, aseptic tympanitis, are one of ear nose larynx common disease, children are common, in upper respiratory tract sense
After dye using ear it is vexed it is swollen sense and dysacousis as cardinal symptom, because otalgia is not obvious, children main suit is unclear, children's hearing by
Parent just has found to go to a doctor during influence, and usually delay diagnosis and treatment, secretory otitis media can cause the hearing loss of children, influence
Verbal language is developed, and answers highly vigilant of and in time observation treatment, for adults with unilateral lesion person, should the clear and definite cause of disease as early as possible, exclude
The occupancy tumour of pharynx nasalis and its peripheral clearance, as early as possible relief of symptoms, quality of making the life better；Current secretory otitis media
Primary treatments are to do eardrum membrane puncture, in order to aspirate intratympanic hydrops, are reached with reference to middle ear ventilation Tube Drain
To the effect for curing and recovering hearing.
However, there is no the Centesis instrument of specialty in conventional puncture process, only come by the technology and experience of doctor
Operation, puncture before first give appropriate anesthesia because the patient Chang Yin pain stimulations in art, head unconsciously make hide it is dynamic
Make, the generation of complication can be caused, do not reach therapeutic purposes, or even cause very big pain to patient.At present, it is usually taken
Anesthesia is cotton piece application method, and the thin cotton piece that will be soaked with 1% dicaine is carefully sticked on eardrum, is kept for 10~15 points
Clock, this method advantage liquor-saturated compared with drop drug anesthesia is essentially consisted in can be while anaesthetize ears, and patient need not keep one for a long time
Plant position；For children, dripping method in ear can be still taken, to reduce the stimulation to infant external auditory meatus, only fully, satisfied
Anesthesia can just accomplish painless puncture, and the most Cui for obtaining patient coordinates, and reaches therapeutic purposes.
Meanwhile, on Needle localization, it is also difficult to meet in light cone lower edge away from inserting needle at tympanic ring about 2~3mm, because, this
Position inserting needle is relatively safe, relatively larger away from tympanum inwall distance, will not damage the weight such as oeil de boeuf and tympanum inwall mucous membrane
Structure is wanted, and this position, close to the minimum point of tympanum, suction hydrops is more abundant, and point of puncture can't be too high, and reason exists
If too high in point of puncture, tympanum inside and outside wall is closer to the distance, and easily the important feature such as damage oeil de boeuf, causes postoperative vertigo；Point of puncture
Can not be too close to pars tensa membranae tympani midpoint, because the eardrum opposing perimeter portion close to center is more loose, manubrium mallei in addition
Tension force, easily point of puncture is torn greatly during inserting needle, healing is difficult, go into and permanently perforate, in addition caused by the infection it is suppurative in
Otitis, causes suffering to patient, in addition, must delay during drawing liquid and light, the fixed needle tubing of proficiency, another hand is slowly taken out
Take, operate difficulty, that is to say, that from the point of view of current technology, attending doctor carries out wearing for ear drum membrane using conventional syringe
Thorn, then carries out successive treatment, because no therapeutic system is aided in, and easily occurs because doctor's operation inaccurately causes eardrum
Film and the impaired of perienchyma cause patient's secondary impaired, influence therapeutic effect, making patients' pain.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide the dress that a kind of ear drum membrane therapeutic system, the present invention are provided
To put can realize that syringe needle is punctured according to set track to ear drum membrane, it is to avoid the influence that artificial experience is brought to treatment,
The stability that ensure that treatment of high degree, improves therapeutic effect, mitigates the pain of sufferer.
To achieve these goals, the technical solution adopted by the present invention is that a kind of ear drum membrane therapeutic system, including support are tied
Structure, supporting construction includes the skeleton and support base of arcuate structure, and circular end face is formed between skeleton and support base, supports bottom
The guide groove for limiting indwelling drainage tube movement locus is provided with seat, indwelling drainage tube is columnar structured, and middle part is front and rear
The through hole run through is used for the entrance of puncture needle, and indwelling drainage tube is stretched into by the guide groove set in support base, the bottom of guide groove
Set the convex stupefied cooperation limitation indwelling drainage tube set on stopper slot, stopper slot and indwelling drainage tube gos deep into length, and indwelling is drawn
The dip section of flow tube is provided with concentric dosing holes, for coordinating with the dosing holes that puncture needle front end is set；
Rubber cushion is fixed with the excircle of puncture needle, rubber cushion outer circumference surface is higher than the outer circumference surface of puncture needle, and puncture needle is opened
Groove provided with annular is used to fix rubber cushion, and puncture needle is stretched into after indwelling drainage tube, the needle body of puncture needle and indwelling drainage tube it
Between be that gap coordinates, rubber cushion is sealed between indwelling drainage tube and puncture needle, by pulling back puncture needle, rubber cushion follow to
After move, so as to form waste liquid in negative pressure extracting ear.
Guide groove is ensures that indwelling drainage tube being capable of axially track is moved in guide groove major arc.
The length that indwelling drainage tube stretches out guide groove is 3~6 millimeters.
The back segment of indwelling drainage tube is additionally provided with alignment scale, the back segment of puncture needle be provided with a raised scale be used for it is right
Neat scale alignment realizes that the dosing holes of puncture needle front end align cooperation with the second hole of indwelling drainage tube front end.
The tail end of indwelling drainage tube is provided with waste liquid hole, the waste liquid of extraction is discharged from waste liquid hole, and waste liquid hole is arranged on
On the sewer pipe for stretching out indwelling drainage tube.
The puncture portion of puncture needle stretches into indwelling drainage tube, for puncturing ear-drum, is administered or rinses, after puncture needle
End is tightly connected with syringe, and puncture needle is sealed with indwelling drainage tube junction, and syringe provides negative pressure for whole therapeutic system.
The dosing holes of puncture needle are corresponding with the concentric dosing holes number set on indwelling drainage tube, are 3-6, uniformly open up
Circumferentially.
Rubber cushion installation site is arranged on the puncture needle between dosing holes and needle point.
The diameter of concentric dosing holes is more than administration bore dia.
Compared with prior art, the present invention at least has the advantages that, by being provided with support base for limiting
The guide groove of indwelling drainage tube movement locus processed, defines that indwelling drainage tube stretches into the track of duct, so as to avoid medical personnel
In therapeutic process is carried out, because the secondary injury that experience or other factors are caused, it is ensured that therapeutic effect, moreover, making
During, indwelling drainage tube is stretched into after ear-drum rear end, can be separated with puncture needle, puncture needle back and forth stretch be administered or
The operation of waste liquid after ear-drum is extracted, during stretching back and forth, it is to avoid repeated trauma to ear-drum, drainage from indwelling is only had
Unique wound of pipe occurs, it is ensured that the healing rate after treatment, mitigates the pain of sufferer, in addition, skeleton and support base it
Between form circular end face, facilitate support base to be fixed in duct, carry out facilitate medical personnel treatment carry out, meanwhile, lead
The bottom of groove sets stopper slot, stopper slot and the deep length of the convex stupefied cooperation limitation indwelling drainage tube set on indwelling drainage tube
Degree, it is to avoid to other injuries of patient caused by the built-in length of indwelling drainage tube is long, it is ensured that medical safety.
Further, the major arc structure of guide groove is designed to effectively limit the indwelling drainage tube in guide groove, protects
Demonstrate,prove in medical procedure, the stability of indwelling drainage tube, so as to avoid malpractice.
Further, alignment scale and raised scale are used cooperatively, can fast and accurately by dosing holes and with one heart
Dosing holes are alignd, and medical care precess is fast and accurately carried out so as to realize, it is ensured that the smoothly feeding of decoction, it is ensured that control
Therapeutic effect；Meanwhile, coordinate between puncture needle and indwelling drainage tube for gap, the diameter of concentric dosing holes is more than the straight of dosing holes
Footpath, realizes the smooth ejection of decoction, it is ensured that therapeutic effect.
Further, the dosing holes that ring-type is set, realize the ejection of decoction multi-angle, can effectively be lifted and control curative effect
Really.
Brief description of the drawings
Fig. 1 is supporting construction schematic diagram of the present invention.
Fig. 2 is Fig. 1 sectional view.
Fig. 3 is the partial schematic diagram of puncture needle of the present invention.
Fig. 4 is puncture needle of the present invention and syringe attachment structure schematic diagram.
Fig. 5 is the structural representation of the indwelling drainage tube of the present invention.
Fig. 6 is the partial structural diagram of the indwelling drainage tube of the present invention.
In accompanying drawing：1- puncture needles, 11- punctures portion, 12- dosing holes, 13- rubber cushions, 2- indwelling drainage tubes, 21- is convex stupefied, 22-
Concentric dosing holes, 23- sewer pipes, 24- alignment scales, 3- supporting constructions, 31- support bases, 32- guide grooves, 33- skeletons, 34- limits
Position groove.
Embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
As shown in figure 1, passing through the skeleton 33 for setting arcuate structure to design, skeleton 33 and support base 31 in supporting construction 3
Between form circular end face, this structure facilitates supporting construction 3 to insert in the duct of patient, moreover, skeleton 33 uses flexible material
Prepare, such as silica gel, can be good at adapting to shape complicated and changeable in duct, the development of convenient treatment mitigates therapeutic process
The pain of middle sufferer；The guide groove 32 for limiting the movement locus of indwelling drainage tube 2 is provided with support base 31.
In a preferred embodiment of the invention, guide groove 32 is major arc, and now the radian of guide groove 32 is more than 180 °, i.e. guide groove 32
Opening at form closing in, can to go deep into indwelling drainage tube 2 therein carry out it is effective spacing, it is ensured that indwelling drainage tube 2
Can axially track be moved in guide groove 32, it is to avoid the abjection of guide groove 32.
As shown in Figure 5 and Figure 6, indwelling drainage tube 2 is columnar structured, and middle part is that pre-and post perforative through hole is used for puncture needle
1 entrance, the dip section of indwelling drainage tube 2 is provided with concentric dosing holes 22, and the rear end of indwelling drainage tube 2 is provided with useless for discharging
The waste liquid hole 23 of liquid and alignment scale 24, indwelling drainage tube 2 are stretched into by the guide groove 32 set in support base 31, guide groove 32
Bottom sets stopper slot 34, stopper slot 34 and set on indwelling drainage tube 2 it is convex stupefied 21 corresponding, both, which coordinate, is used to limit indwelling
The length that drainage tube 2 stretches out guide groove 32 is 3~6 millimeters；The second hole 22 is additionally provided with the front end circumference of indwelling drainage tube 2, is used
Coordinate in the dosing holes 12 set with the front end of puncture needle 1, be administered, rinse, the rear end of indwelling drainage tube 2 is additionally provided with alignment
Scale 24, wears as shown in figure 4, the back segment of puncture needle 1 is provided with a raised scale for being alignd with the scale 24 that aligns so as to realize
The dosing holes 12 of the front end of pricker 1 align cooperation with the second hole 22 of the front end of indwelling drainage tube 2, the operation such as are administered and rinse.
As shown in figure 3, being fixed with rubber cushion 13 on the excircle of puncture needle 1, the outer circumference surface of rubber cushion 13 is outer higher than puncture needle 1
Periphery, the groove that puncture needle 1 offers annular is used to fix rubber cushion, in addition, the installation site of rubber cushion 13 is arranged on dosing holes 12
On puncture needle 1 between needle point；Puncture needle 1 is stretched into after indwelling drainage tube 2, between the needle body and indwelling drainage tube 2 of puncture needle 1
It is that gap coordinates, and rubber cushion 13 is sealed between indwelling drainage tube 2 and puncture needle 1, by pulling back puncture needle 1, rubber cushion
13 follow and are moved rearwards by, so that negative pressure is formed, it is effective to realize that the extraction to waste liquid in ear is discharged；In the tail of indwelling drainage tube 2
End is provided with waste liquid hole 23, and the waste liquid of extraction is discharged from waste liquid hole 23, and waste liquid hole 23, which is arranged on, stretches out the useless of indwelling drainage tube 2
In liquid pipe, there is the more convenient collection and processing to discharging waste liquid of sewer pipe.
As shown in figure 4, the puncture portion 11 of puncture needle 1 stretches into indwelling drainage tube 2, for puncturing ear-drum, be administered or
Rinse, rear end and the syringe of puncture needle 1 are tightly connected, puncture needle 1 is sealed with the junction of indwelling drainage tube 2, syringe is entirely to control
Treat device and negative pressure is provided；
Puncture needle 1 is corresponding with the hole number set on indwelling drainage tube 2, is 3-6, uniformly opens up circumferentially.
The therapeutic system of the present invention is as follows using process, supporting construction 3 is inserted in patient's duct, then by drainage from indwelling
Pipe 2 is stretched into by guide groove 32, and puncture needle 1 is placed in the inside of indwelling drainage tube, and puncture needle 1 punctures ear-drum into ear-drum rear portion；When
It is administered or during flushing operation, decoction or flushing liquor are loaded in syringe, and puncture needle 1 aligns with the hole of indwelling drainage tube 2, extrudes
Syringe, decoction sprays from hole, realizes administration or rinses；After flushing is finished, post-tensioning syringe provides negative pressure, and waste liquid is extracted out.
Claims (9)
1. a kind of ear drum membrane therapeutic system, it is characterised in that including supporting construction (3), supporting construction (3) includes arcuate structure
Skeleton (33) and support base (31), are formed between skeleton (33) and support base (31) in circular end face, support base (31)
The guide groove (32) for limiting indwelling drainage tube (2) movement locus is provided with, indwelling drainage tube (2) is columnar structured, middle part
It is used for the entrance of puncture needle (1) for pre-and post perforative through hole, indwelling drainage tube (2) passes through the guide groove that is set in support base (31)
(32) stretch into, the bottom of guide groove (32) sets stopper slot (34), stopper slot (34) with set on indwelling drainage tube (2) it is convex stupefied
(21) coordinate limitation indwelling drainage tube gos deep into length, and the dip section of indwelling drainage tube (2) is provided with concentric dosing holes (22), uses
Coordinate in the dosing holes (12) set with puncture needle (1) front end；
Rubber cushion (13) is fixed with the excircle of puncture needle (1), rubber cushion (13) outer circumference surface is higher than the excircle of puncture needle (1)
Face, the groove that puncture needle (1) offers annular is used to fix rubber cushion (13), and puncture needle (1) is stretched into after indwelling drainage tube (2), worn
It is that gap coordinates between the needle body and indwelling drainage tube (2) of pricker (1), rubber cushion (13) is sealed in indwelling drainage tube (2) with wearing
Between pricker (1), by pulling back puncture needle (1), rubber cushion (13), which is followed, to be moved rearwards by, and is given up so as to be formed in negative pressure extracting ear
Liquid.
2. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that guide groove (32) is guarantee drainage from indwelling
Managing (2) can be in the interior major arc that axially track is moved of guide groove (32).
3. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that indwelling drainage tube (2) stretches out guide groove
(32) length is 3~6 millimeters.
4. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that the back segment of indwelling drainage tube (2) is also
It is provided with alignment scale (24), the back segment of puncture needle (1), which is provided with a raised scale, to be used to align realization with the scale that aligns (24)
The dosing holes (12) of puncture needle (1) front end align cooperation with second hole (22) of indwelling drainage tube (2) front end.
5. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that the tail end in indwelling drainage tube (2)
Waste liquid hole (23) is provided with, the waste liquid of extraction is discharged from waste liquid hole (23), and waste liquid hole (23) are arranged on stretching indwelling drainage tube
(2) on sewer pipe.
6. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that the puncture portion (11) of puncture needle (1)
Indwelling drainage tube (2) is stretched into, for puncturing ear-drum, is administered or rinses, the rear end of puncture needle (1) is sealed with syringe to be connected
Connect, puncture needle (1) is sealed with indwelling drainage tube (2) junction, syringe provides negative pressure for whole therapeutic system.
7. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that the dosing holes (12) of puncture needle (1)
It is corresponding with concentric dosing holes (22) number set on indwelling drainage tube (2), it is 3-6, uniformly opens up circumferentially.
8. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that rubber cushion (13) installation site is arranged on
Dosing holes (12) are on the puncture needle (1) between needle point.
9. a kind of ear drum membrane therapeutic system according to claim 1, it is characterised in that the diameter of concentric dosing holes (22) is big
In dosing holes (12) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386949.3A CN107049600B (en) | 2017-05-26 | 2017-05-26 | Eardrum membrane treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710386949.3A CN107049600B (en) | 2017-05-26 | 2017-05-26 | Eardrum membrane treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN107049600A true CN107049600A (en) | 2017-08-18 |
| CN107049600B CN107049600B (en) | 2023-09-22 |
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ID=59611119
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710386949.3A Active CN107049600B (en) | 2017-05-26 | 2017-05-26 | Eardrum membrane treatment device |
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