CN105833417A - Head-wearing drug delivery device used for treating ear disease - Google Patents
Head-wearing drug delivery device used for treating ear disease Download PDFInfo
- Publication number
- CN105833417A CN105833417A CN201610147190.9A CN201610147190A CN105833417A CN 105833417 A CN105833417 A CN 105833417A CN 201610147190 A CN201610147190 A CN 201610147190A CN 105833417 A CN105833417 A CN 105833417A
- Authority
- CN
- China
- Prior art keywords
- earmuff
- drug delivery
- elasticity arm
- drug
- auditory meatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- 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
-
- A61M1/0023—
Abstract
The invention discloses a head-wearing drug delivery device used for treating an ear disease. The head-wearing drug delivery device is characterized by comprising a drug bag chamber positioned on the top of the head of a patient, wherein one end of the drug bag chamber is connected with a common earmuff tightly attaching to the healthy ear of the patient through a fixed-length elastic arm, the other end of the drug bag chamber is connected with a drug delivery earmuff tightly attaching to the diseased ear of the patient through a length-adjustable elastic arm, the inner side surface, facing the auricle, of the drug delivery earmuff is provided with an earplug fixed to the inlet of the auditory meatus, and the outer side surface of the drug delivery earmuff is provided with a negative pressure mechanism capable of sucking the excreta and the residual liquid drug in the auditory meatus to the earmuff; the length-adjustable elastic arm is composed of an upper section and a lower section connected through a guide groove and a telescopic mechanism, the upper section is internally provided with a hidden drug delivery pipe, and the upper end of the drug delivery pipe is communicated with a drug bag in the drug bag chamber; the lower end of the drug delivery pipe passes through a section of exposure part, enters the drug delivery earmuff, then penetrates through the earplug and reaches the tail end, close to the eardrum, of the auditory meatus; the outer side, close to the free end, of the upper section of the elastic arm is provided with a dripping-controlling valve which is connected with the drug delivery pipe in the upper section of the elastic arm, and controls the amount of the liquid drug flowing to the tail end of the auditory meatus.
Description
Technical field
The present invention relates to ear, nose, larynx section clinical treatment apparatus, particularly to one treat otitis media or
The successive administration device of the otopathy such as traumatic perforation of tympanic membrane.
Background technology
In recent years, in department of otorhinolaryngology patient, otitis media patient accounts for significant proportion, and its disease shows as
External auditory meatus is suppurated, pruritus, auditory dysesthesia, tinnitus etc..It addition, outpatient service traumatic perforation of tympanic membrane patient
Also a lot, over the course for the treatment of, how to keep external auditory meatus to clean so that the tympanum of perforation and dirt
Air and water segregation, the healing for infection of external auditory meatus is particularly important.
Find in outpatient service ear endoscope checks, have part gerontal patient's otitis media perforation of ear drum to heal voluntarily
Close, but young and middle-aged otitis media patient's perforation of ear drum nearly no self-heal person.Consider current environment
Air pollution is serious, and the therefore easy repeated infection of otitis media, the perforation of ear drum is difficult to heal.Traumatic tympanum
Boring a hole, we use Oleum Hippophae cotton piece to subsidize treatment, and infection rate is up to 80%, healed perforation of ear drum rate
Less than 20%, use a kind of modification method, after tympanum subsidizes at once, enjoin patient's external auditory canal opening to place
Dry cotton ball or medicated napkin so that external auditory meatus and dirty air insulated, take out, so evening in bed
The skin of external auditory meatus can be with eupnea, so that infection rate declines, healed perforation of ear drum rate is obvious
Improve.This modification method needs the earplug of 2 brood lac materials to help prevention tympanum to infect.The first is empty
The built-in drainage screen capable of washing of core earplug, prevents the dust in air from entering external auditory meatus, wears at ordinary times.
The solid earplug of the second, can stop water to enter external auditory meatus, wear when can have a bath.So can be pre-
Anti-infection of external auditory meatus, increases the chance of perforation of ear drum self-heal.But both modification methods are in prevention
While infection, it is impossible to solve the function of successive administration treatment.
Summary of the invention
It is an object of the invention to provide one can successive administration and simultaneously prevent recurrent infection, significantly improve
The device of the otopathy such as the treatment otitis media of healed perforation of ear drum rate or traumatic perforation of tympanic membrane.
For reaching object above, the present invention adopts the following technical scheme that and is achieved:
A wear-type doser of a kind of otopathy treatment, it is characterised in that include that is placed in a patient
The medicine bag room of head, its one end is connected by a regular length elasticity arm and is close to the common of the good ear of patient
Earmuff, the other end connects the administration earmuff being close to disease ear by adjustable length elasticity arm, and this is given
Medicine earmuff is provided with an earplug being fixed on auditory meatus import relative to the medial surface of auricle, is administered earmuff lateral surface
Being provided with one can be by the negative pressure mechanism in the secretions in auditory meatus and dead space capacity inhalation mask；Described scalable
Length elasticity arm is connected and composed by guide groove and telescoping mechanism by epimere and hypomere, is wherein provided with in epimere
The delivery tube hidden, the medicine bag in connection medicine bag room, this delivery tube upper end；Delivery tube lower end passes through one section
Enter after exposed parts and be administered in earmuff, through earplug until near the auditory meatus end of tympanum；Elasticity arm
Epimere is provided with a control drip trap connection outside free end and is hidden in the delivery tube in elasticity arm epimere,
Convection current enters auditory meatus end medicinal liquid and carries out measuring control.
In such scheme, described administration earmuff ring side-lower is provided with a drug row bolt.Described entrance is administered ear
Delivery tube in cover, pierces into a piece drug row pipe of connection at earplug just, and this drug row pipe tethers with drug row and connects.
The hypomere of described adjustable length elasticity arm is connected with being administered earmuff by an earmuff fixture.
Described negative pressure mechanism be arranged on by one be administered the button at earmuff lateral surface center and be arranged on to
Beyond medicine earmuff lateral surface center, an one-way vent of any place is constituted.
Described telescoping mechanism is included on upper and lower section of binding face of elasticity arm and arranges multiple bullet along its length
Pearl, in half ball-and-socket of the bottom belt stage clip that the half of each hoodle embeds hypomere, second half spheroid
Embed in one and half ball-and-sockets of epimere；Bottom is compared along binding face length direction without stage clip half ball-and-socket quantity
Half ball-and-socket with stage clip at least many one times；This telescoping mechanism also includes location structure, i.e. on elasticity arm
Section free end sets one and rides groove, rides over elasticity arm hypomere width both sides, simultaneously segment length under elasticity arm
Degree side sets up the projection of both sides, two pairs of symmetric widths directions, a pair in " rising " position, a pair
" only " position.
Arranging one on described medicine bag can be by the connection mouth of delivery tube easy disassembly.
The described coyote hole that adds is arranged above with loading convenient for medicine bag or taking out removable cover.
Foreign body adsorbing material it is filled with in described earplug.
The invention have the advantage that
1, wear conveniently, use simple, elegant in appearance, particularly decrease the work of medical personnel
Pressure, the treatment in time for other patients saves the time.
2, patient is when changing dressings, it is not necessary to seek medical advice every time, can pass through medicine bag voluntarily according to doctor's advice
The removable cover of room changes the foreign body adsorbing material in medicine bag and earplug, and, eradicate in the past because of different
Thing adsorbing material and foreign body combine the secondary cleaning trouble caused in sticking to auditory meatus.
3, in addition, decapacitation prevents the dust in air and allogenic water from entering auditory meatus, such as, suffers from
Person just can wear when having a bath.And then, on the basis of improving prevention ear infections, too increase
The chance of patient's tympanic membrane perforation self-heal, improve one's hearing level.
4, while implementing tympanum drug treatment continuously so that auditory meatus and dirty air insulated, but
Do not hinder the eupnea of ear channel skin.
By clinic application, the infection rate of otitis media or traumatic perforation of tympanic membrane patient is less than apparatus of the present invention
10%, healed perforation of ear drum rate can reach more than 90%.
Accompanying drawing explanation
Fig. 1 is the structure of apparatus of the present invention and uses state diagram.
Fig. 2 is earmuff cartridge structure schematic diagram.
Fig. 3 is two side views being administered earmuff in Fig. 1.Wherein a figure is lateral surface schematic diagram；b
Figure is medial surface schematic diagram.
Fig. 4 is the telescoping mechanism schematic diagram in Fig. 1.Wherein a figure is that elasticity arm upper-lower section connects and fixed
Position schematic diagram；B figure is the top view of a figure.
Fig. 5 is the medicine bag cell structure schematic diagram in Fig. 1.
In Fig. 1～Fig. 5: 1, common earmuff；2, medicine bag room；3, elasticity arm epimere；4, delivery tube；
5, elasticity arm hypomere；6, telescoping mechanism；7, control drip trap；8, auricle；9, earmuff deck；10、
Negative pressure mechanism；11, it is administered earmuff；12, drug row bolt (valve)；13, drug row pipe；14, auditory meatus；
15, auditory ossicles；16, tympanum；17, earplug；18, medicine bag；19, resilient pegs；20, delivery tube
Enter canal section；21, half ball-and-socket；22, hoodle；23, stage clip；24, symmetrical protruding；25、
Ride groove；26, removable cover；27, pencil is spigot joint.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
With reference to Fig. 1, the wear-type doser of a kind of otopathy treatment, it is placed in the patient crown including one
The medicine bag room 2 in portion, its one end connects the common ear being close to the good ear of patient by a regular length elasticity arm
Cover 1 (the disc earmuff of similar headphone, but without acoustical generator), the other end is by can
Regulation length elasticity arm connects the administration earmuff 11 being close to disease ear.In conjunction with Fig. 3, it is administered earmuff 11
Being shaped as the disk of a hollow, the medial surface of its relative auricle 8 is provided with an earplug 17, is fixed on ear
The import in road 14, disk lateral surface is provided with a negative pressure mechanism 10, for by the secretions in auditory meatus and
In dead space capacity inhalation mask.This negative pressure mechanism can be by a button being arranged on disk lateral surface center
And the one-way vent being arranged on any place beyond disk lateral surface center is constituted, by pressing
This button makes hollow disc be squeezed, and then decontrols button, will produce negative in being at this moment administered earmuff
Pressure, can be by the secretions in auditory meatus and dead space capacity sucking-off.It is administered earmuff 11 ring side-lower and is provided with one
Drug row bolt 12, can get rid of the secretions in inhalation mask and dead space capacity in timing.
Adjustable length elasticity arm is passed through even outside elasticity arm hypomere 5 by the inner side of elasticity arm epimere 3
Connect the connection bonded to each other of guide groove (not shown), and on laminating contact surface, be provided with telescoping mechanism 6 can
With upper and lower section of free pull elasticity arm, administration earmuff is made accurately to be attached on auricle to be treated.Elasticity arm
Hiding delivery tube 4, the medicine bag 18 in connection medicine bag room 2, its upper end it is provided with in epimere 3；Its lower end
It is administered in earmuff 11 by entering after one section of exposed parts, through earplug 17 until near tympanum 16
Auditory meatus end.Elasticity arm epimere 3 is hidden in bullet by being provided with control drip trap 7 connection outside free end
Delivery tube 4 in arm of force epimere, can be used for convection current and enters auditory meatus 14 end medicinal liquid and carry out measuring control.Enter
Enter to be administered the delivery tube in earmuff 11, pierce into just and a drug row pipe 13, this row at earplug, can be connected
Pencil is connected with drug row bolt 12, when be administered too fast make auditory meatus medicinal liquid deposit time, can by this drug row pipe by
Drug row bolt is got rid of.The present invention makes the medicine in medicine bag 18 by delivery tube 4 by gravity and UNICOM's principle
It is continuously introduced into auditory meatus 14 end tympanum 16 is administered, ensures that the flow of medicine is to reach by control drip trap 7
To optimal therapeutic effect.
With reference to Fig. 1, another embodiment of the present invention is, the hypomere of adjustable length elasticity arm can pass through
One earmuff fixture 9 is connected with being administered earmuff 11.As in figure 2 it is shown, earmuff fixture is a band breach
Ring-type clamp, connects the free end of elasticity arm hypomere outside this clamp, inside diameter direction symmetry sets
There is a pair resilient pegs 19, block fashionable when being administered earmuff 11, earmuff disk can be fixed.Earmuff is set
The purpose of fixture is can to facilitate to unload administration earmuff, carries out disinfection and cleans.
With reference to Fig. 4, telescoping mechanism 6 includes being arranged on upper and lower section of binding face of elasticity arm along length side
To multiple hoodles 22 (at least 3), each hoodle hemisphere embed under of (on or) section
In half ball-and-socket of bottom belt stage clip 23, another hemisphere embeds one and half ball-and-sockets 21 of upper (under or) section
In, without stage clip half ball-and-socket 21 quantity along more than a times that binding face length direction is hoodle 22 quantity,
So when upper-lower section pull, the convenient empty ball-and-socket 21 to left or right of hoodle 22 moves and embeds, real
The length adjustment (Fig. 4 a) of existing elasticity arm.
Telescoping mechanism also includes location structure, i.e. sets one at elasticity arm epimere free end and rides groove 25, rides over
Elasticity arm hypomere width both sides, arrange two to symmetrical wide on elasticity arm hypomere length direction simultaneously
Degree both sides, direction projection, a pair in " rising " position (left), a pair in " only " position (right).
With reference to Fig. 5, add coyote hole 2 and be arranged above with removable cover 26, medicine bag 18 conveniently can be loaded or take
Go out.One pencil spigot joint 27 can be set on medicine bag 18, when medicine bag 18 takes out and changes dressings, can be by delivery tube
Take；Loading after finishing changing medicine and add coyote hole, then connected by delivery tube, the removable cover that closes can be worn again
Employ, operate the most simple and convenient.
The foreign body adsorbates such as cotton balls, sliver, medium air filtration net can be filled with in earplug 17, on the one hand can
Ensure auditory meatus and dirty air insulated, on the other hand can make the skin energy eupnea of auditory meatus.
Be administered earmuff and earplug use medical thermoplastic macromolecule material (polyethylene, polystyrene, PP,
PE, HDPE etc.) make loose structure, and the TPU (polyurethane) of Waterproof Breathable is had at outer surface
Coating glue film, while isolation auditory meatus, waterproof and ensure the skin energy eupnea of auditory meatus.
Apparatus of the present invention left and right ear exchange can wear use.
Claims (9)
1. a wear-type doser of an otopathy treatment, it is characterised in that include that is placed in a patient
The medicine bag room of head, its one end is connected by a regular length elasticity arm and is close to the common of the good ear of patient
Earmuff, the other end connects the administration earmuff being close to disease ear by adjustable length elasticity arm, and this is given
Medicine earmuff is provided with an earplug being fixed on auditory meatus import relative to the medial surface of auricle, is administered earmuff lateral surface
Being provided with one can be by the negative pressure mechanism in the secretions in auditory meatus and dead space capacity inhalation mask；Described scalable
Length elasticity arm is connected and composed by guide groove and telescoping mechanism by epimere and hypomere, is wherein provided with in epimere
The delivery tube hidden, the medicine bag in connection medicine bag room, this delivery tube upper end；Delivery tube lower end passes through one section
Enter after exposed parts and be administered in earmuff, through earplug until near the auditory meatus end of tympanum；Elasticity arm
Epimere is provided with a control drip trap connection outside free end and is hidden in the delivery tube in elasticity arm epimere,
Convection current enters auditory meatus end medicinal liquid and carries out measuring control.
2. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that institute
State administration earmuff ring side-lower and be provided with a drug row bolt.
3. the wear-type doser of otopathy treatment as claimed in claim 2, it is characterised in that institute
State and enter the delivery tube being administered in earmuff, pierce into a piece drug row pipe of connection, this drug row pipe at earplug just
Tether with drug row and connect.
4. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that can
The hypomere of regulation length elasticity arm is connected with being administered earmuff by an earmuff fixture.
5. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that institute
State negative pressure mechanism and by a button being arranged on administration earmuff lateral surface center and be arranged on administration earmuff
Beyond lateral surface center, an one-way vent of any place is constituted.
6. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that institute
State telescoping mechanism to be included on upper and lower section of binding face of elasticity arm and arrange multiple hoodle along its length, often
In half ball-and-socket of the bottom belt stage clip that the half of individual hoodle embeds hypomere, in the embedding of second half spheroid
In one and half ball-and-sockets of section；Without stage clip half ball-and-socket quantity along binding face length direction than bottom belt stage clip
At least many one times of half ball-and-socket；This telescoping mechanism also includes location structure, i.e. at elasticity arm epimere freely
End sets one and rides groove, rides over elasticity arm hypomere width both sides, simultaneously at elasticity arm hypomere length direction
On two projections to both sides, symmetric widths direction are set, a pair in " rising " position, a pair " only "
Position.
7. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that
Arranging one on described medicine bag can be by the connection mouth of delivery tube easy disassembly.
8. the wear-type doser of otopathy treatment as claimed in claim 7, it is characterised in that
The described coyote hole that adds is arranged above with loading convenient for medicine bag or taking out removable cover.
9. the wear-type doser of otopathy treatment as claimed in claim 1, it is characterised in that
Foreign body adsorbing material it is filled with in described earplug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147190.9A CN105833417A (en) | 2016-03-15 | 2016-03-15 | Head-wearing drug delivery device used for treating ear disease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147190.9A CN105833417A (en) | 2016-03-15 | 2016-03-15 | Head-wearing drug delivery device used for treating ear disease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105833417A true CN105833417A (en) | 2016-08-10 |
Family
ID=56587972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147190.9A Pending CN105833417A (en) | 2016-03-15 | 2016-03-15 | Head-wearing drug delivery device used for treating ear disease |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105833417A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310579A (en) * | 2018-03-25 | 2018-07-24 | 重庆知遨科技有限公司 | Cardiological easy to use administration breathing mask |
| CN108743035A (en) * | 2018-06-26 | 2018-11-06 | 刘慧� | A kind of external ear drug immersion device |
| CN109316659A (en) * | 2018-09-27 | 2019-02-12 | 郑竹锋 | A kind of Debrox cotton filling-getting machine |
| CN111529202A (en) * | 2020-04-14 | 2020-08-14 | 武海铃 | Ofloxacin administration device for external auditory meatus inflammation |
| CN111700737A (en) * | 2020-07-22 | 2020-09-25 | 中国人民解放军陆军军医大学第一附属医院 | Adjustable ear postoperative auxiliary material fixer |
| CN112220596A (en) * | 2020-09-27 | 2021-01-15 | 江阴市鸿萌橡塑制品有限公司 | Disposable auricle fixing piece for post-operation of auditory canal and manufacturing method |
| CN114010924A (en) * | 2021-11-08 | 2022-02-08 | 中国人民解放军总医院第三医学中心 | Ear canal liquid medicine injection device |
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| CN2077291U (en) * | 1990-09-28 | 1991-05-22 | 陈智海 | Multifunctional negtive-pressure implement for sucking pus and cupping |
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| US6645173B1 (en) * | 2002-03-29 | 2003-11-11 | Barbara Liebowitz | Dripless eardrop applicator |
| CN201135554Y (en) * | 2007-11-29 | 2008-10-22 | 王红霞 | Medical ear shield |
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| CN103858787A (en) * | 2012-12-15 | 2014-06-18 | 罗怀碧 | Pet liquid medicine dripping device |
| CN205055140U (en) * | 2015-09-08 | 2016-03-02 | 中国人民解放军第四军医大学 | Wear -type center vein catheterization fixing device |
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| GB2185688A (en) * | 1986-01-25 | 1987-07-29 | Trevor Peter Andrew Clarke | Device for cleansing ear canal |
| CN2077291U (en) * | 1990-09-28 | 1991-05-22 | 陈智海 | Multifunctional negtive-pressure implement for sucking pus and cupping |
| CN2232737Y (en) * | 1995-05-09 | 1996-08-14 | 李积山 | Replacement therapeutic device for otitis media |
| US6645173B1 (en) * | 2002-03-29 | 2003-11-11 | Barbara Liebowitz | Dripless eardrop applicator |
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| CN201143258Y (en) * | 2007-11-08 | 2008-11-05 | 陈继兰 | Negative-pressure suction adjustable auditory canal foreign body sweeper |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108310579A (en) * | 2018-03-25 | 2018-07-24 | 重庆知遨科技有限公司 | Cardiological easy to use administration breathing mask |
| CN108310579B (en) * | 2018-03-25 | 2023-10-27 | 北京亿家老小科技有限公司 | Convenient-to-use administration breathing mask for department of cardiology |
| CN108743035A (en) * | 2018-06-26 | 2018-11-06 | 刘慧� | A kind of external ear drug immersion device |
| CN108743035B (en) * | 2018-06-26 | 2020-03-17 | 青岛大学附属医院 | External ear medicine soaking device |
| CN109316659A (en) * | 2018-09-27 | 2019-02-12 | 郑竹锋 | A kind of Debrox cotton filling-getting machine |
| CN109316659B (en) * | 2018-09-27 | 2021-03-12 | 青岛大学附属医院 | Cotton wadding plug-taking machine for otology |
| CN111529202A (en) * | 2020-04-14 | 2020-08-14 | 武海铃 | Ofloxacin administration device for external auditory meatus inflammation |
| CN111700737A (en) * | 2020-07-22 | 2020-09-25 | 中国人民解放军陆军军医大学第一附属医院 | Adjustable ear postoperative auxiliary material fixer |
| CN112220596A (en) * | 2020-09-27 | 2021-01-15 | 江阴市鸿萌橡塑制品有限公司 | Disposable auricle fixing piece for post-operation of auditory canal and manufacturing method |
| CN112220596B (en) * | 2020-09-27 | 2022-08-19 | 江阴市鸿萌橡塑制品有限公司 | Disposable auricle fixing piece for post-operation of auditory canal and manufacturing method |
| CN114010924A (en) * | 2021-11-08 | 2022-02-08 | 中国人民解放军总医院第三医学中心 | Ear canal liquid medicine injection device |
| CN114010924B (en) * | 2021-11-08 | 2023-09-12 | 中国人民解放军总医院第三医学中心 | Auditory canal liquid medicine injection device |
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| PB01 | Publication | ||
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Application publication date: 20160810 |