CN107823769A - A kind of gum protection type bite-block used in endotracheal intubation - Google Patents
A kind of gum protection type bite-block used in endotracheal intubation Download PDFInfo
- Publication number
- CN107823769A CN107823769A CN201711307445.4A CN201711307445A CN107823769A CN 107823769 A CN107823769 A CN 107823769A CN 201711307445 A CN201711307445 A CN 201711307445A CN 107823769 A CN107823769 A CN 107823769A
- Authority
- CN
- China
- Prior art keywords
- bite
- block
- oral cavity
- wing
- protection type
- 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.)
- Granted
Links
- 238000002627 tracheal intubation Methods 0.000 title claims abstract description 17
- 210000000214 mouth Anatomy 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000013013 elastic material Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims description 11
- 206010036790 Productive cough Diseases 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 229960001866 silicon dioxide Drugs 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 6
- 210000003456 pulmonary alveoli Anatomy 0.000 claims description 6
- 210000003802 sputum Anatomy 0.000 claims description 6
- 208000024794 sputum Diseases 0.000 claims description 6
- 244000043261 Hevea brasiliensis Species 0.000 claims description 5
- 229920003052 natural elastomer Polymers 0.000 claims description 5
- 229920001194 natural rubber Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 239000004793 Polystyrene Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920002223 polystyrene Polymers 0.000 claims description 2
- 150000004651 carbonic acid esters Chemical class 0.000 claims 1
- 229920002492 poly(sulfone) Polymers 0.000 claims 1
- 208000009596 Tooth Mobility Diseases 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 241001014327 Anodontia Species 0.000 description 2
- 206010002583 anodontia Diseases 0.000 description 2
- 230000005212 anodontia Effects 0.000 description 2
- 230000028327 secretion Effects 0.000 description 2
- 210000004872 soft tissue Anatomy 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 206010018275 Gingival atrophy Diseases 0.000 description 1
- 206010061213 Iatrogenic injury Diseases 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 201000005562 gingival recession Diseases 0.000 description 1
- 210000002200 mouth mucosa Anatomy 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
- A61M16/049—Mouthpieces
- A61M16/0493—Mouthpieces with means for protecting the tube from damage caused by the patient's teeth, e.g. bite block
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/06—Saliva removers; Accessories therefor
- A61C17/08—Aspiration nozzles
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/02—General characteristics of the apparatus characterised by a particular materials
- A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Pulmonology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Hematology (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Anesthesiology (AREA)
- Emergency Medicine (AREA)
- Otolaryngology (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Materials For Medical Uses (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The present invention relates to the gum protection type bite-block used in a kind of endotracheal intubation; including the bite-block wing on the outside of bite-block main body, oral cavity; the bite-block wing on the inside of oral cavity; three uses medical flexible material; bite-block main body center is provided with tracheal catheter fixed card slot; the middle of the bite-block wing and oral cavity inner side pad wing phase the same side is provided with tracheal catheter entrance on the outside of oral cavity, and the tracheal catheter fixed card slot communicates with tracheal catheter inlet slot.Medical elastic material layer is provided with the inwall of conduit fixed card slot.The present invention, which can play, prevents tongue from biting, and prevents tooth mobility, prevents tracheal catheter dystopy, protection gum effect, and have the characteristics of being easy to insert and taking out.
Description
Technical field
The invention belongs to medical instruments field, is related to the gum protection type bite-block used in a kind of endotracheal intubation.
Background technology
Bite-block is usually used in preventing tongue from biting in art, and protection tracheal catheter exempts from tooth and stings bad and convenient fixed tracheal catheter
Effect.Conventional gripper pad structure includes bite-block main body, the bite-block wing, bite-block card three parts, and the bite-block wing is arranged on bite-block main body
Both sides, bite-block main body are put into above and below patient between denture, play a supportive role, sting bad tracheal catheter to prevent tooth, the bite-block wing is placed in
The outer rim of upper and lower denture, is shifted to prevent bite-block, and bite-block card is used to fix tracheal catheter, prevents tracheal catheter from shifting.It is this common
Though the bite-block of structure have it is cheap, easy to operate, in place of also having a Shortcomings：Using the high nonelastic material of hardness more than 1.
Make, with oral soft tissue poor compliance, the dental soft tissue such as easy coup injury tongue body, oral mucosa and gum etc.；2. due to
Bite-block can not completely enclose oral cavity, be easily caused tongue abjection and bitten, especially prone position when；3. common bite-block and upper lower tooth
Contact area is small between tooth, makes local tooth stress big, easily causes tooth mobility and comes off, especially has tooth mobility, gum to wither
The patient of contracting；4. contact area is small between common bite-block and upper lower teeth, front tooth is set to have the patient's bite-block that comes off to place trip tired
Difficulty, and can coup injury gum；5. common bite-block easily slides between upper lower teeth, tracheal catheter is caused to be fixed unstable, especially
It is not teethe or tooth does not grow neat infant.Therefore, using tooth mobility caused by common bite-block, come off, gum damage
Wound, and tracheal catheter displacement etc., unnecessary iatrogenic injury and life danger are brought to patient.
The content of the invention
It is an object of the invention to provide the gum protection type bite-block used in a kind of endotracheal intubation, solves common bite-block
The organ conduit that brings fixes insecure, the problems such as easily bringing injury to gum.
The purpose of the present invention is achieved by the following technical solution：A kind of tooth used in endotracheal intubation
Gum protection type bite-block, it includes the bite-block wing on the outside of bite-block main body, oral cavity, the oral cavity inner side bite-block wing, described gum protection type tooth
Pad can agree with completely with upper and lower alveolus, and almost the whole teeth space up and down of closing, can prevent tongue from deviating from and biting well, make bite-block
Stress surface is diffused into whole alveolus, it is therefore prevented that single or several teeth solve agomphosis because of the generation that stress is big and loosens, comes off
（It is more common in gerontal patient）Or anodontia（It is more common in infant）Bite-block fixes difficult problem；The center setting of the bite-block main body
There is tracheal catheter fixed card slot, the middle of the bite-block wing and oral cavity inner side pad wing phase the same side is provided with tracheae on the outside of oral cavity
Duct entry；The tracheal catheter fixed card slot communicates with tracheal catheter entrance, before using the bite-block, by matched gas
Pipe conduit is snapped onto in fixed card slot from tracheal catheter entrance, it is possible to is played fixed tracheal catheter, is prevented tracheal catheter dystopy
Effect.Using using, it is necessary to allow tooth to bite bite-block main body, and allowing gum or tooth during the bite-block in endotracheal intubation
Tooth is on the outside of oral cavity between the bite-block wing and the oral cavity inner side bite-block wing, is thus enclosed oral cavity, is prevented tongue from deviating from and being snapped
Hinder or weigh wounded.
The bite-block wing on the outside of the bite-block main body, oral cavity, the oral cavity inner side bite-block wing all use medical flexible material, can be any
Flexural deformation can be damaged with meeting the shape of gum caused by being rubbed with gum or oral cavity to it.Conduit fixing card
Medical elastic material layer is provided with the inwall of groove, after tracheal catheter is fixed into fixed card slot, because elastomeric layer occurs
Elastic deformation, can thus increase the pressure to tracheal catheter, and the medical flexible material is selected from medical silica-gel, natural rubber
Glue, polyurethane, thermoplastic elastomer (TPE), haloflex, preferential medical silica-gel；The material of the medical elastic material layer is selected from doctor
With silica gel, natural rubber, polyurethane, polyvinyl chloride, polyethylene, polypropylene, polystyrene, makrolon, ABS, polyamide, poly-
Sulfone, preferably polyvinyl chloride.
On the outside of the oral cavity elastic protective layer is provided with the madial wall of the bite-block wing.On the inside of the oral cavity on bite-block wing inwall
Air bag is provided with, inflating catheter is connected with the air bag, the inflating catheter passes through bite-block main body, led to outside the oral cavity of bite-block
Side.During by the bite-block fixed between tooth, inflated by inflating catheter to air bag power, the bite-block wing and mouth on the outside of such oral cavity
The intracavitary side bite-block wing will tightly clamp tooth or gum so that and facing will not slide in oral cavity, simultaneously as air bag
Cushioning effect, allows whole alveolus stress, scatters one's forces, mitigates the drawing to single tooth, can take care of one's teeth well and gum,
To gingival atrophy, tooth mobility patient advantageously.
Patient bites bite-block for a long time, and the secretion in oral cavity will increase, and patient will feel to be difficult by curing from property just
It can reduce, particularly with the patient of abundant expectoration.Sputum aspirator tube jack is provided with bite-block main body, is convenient for siphoning away oral cavity with sputum aspirator tube
The operation of secretion.
The bite-block main body both sides are provided with Handheld Division, are easy to one hand to hold and the bite-block is implanted into oral cavity or taking-up.
The beneficial effects of the invention are as follows：
1st, prevent tongue from biting：Oral cavity can be closed, prevents tongue from deviating from and being bitten or weighed wounded, especially to prone patient.
2nd, tooth mobility is prevented：Allow whole alveolus stress, scatter one's forces, mitigate the drawing to single tooth；Gum is withered
Contracting, tooth mobility patient advantageously.
3rd, tracheal catheter dystopy is prevented：Bite-block fixation, more preferable A/C, it is particularly advantageous to agomphosis, anodontia patient
Gum protection and tracheal catheter fix.
4th, gum is protected：Designed using air bag and soft silica gel, can coincide with patient's alveolus, will not weigh wounded again；Edge is all
A property processing has been carried out, has prevented from damaging.
5th, it is easy to insert and take out：Bite-block main body both sides are provided with Handheld Division, are easy to one hand to hold；Bite-block main body and bite-block
The wing uses flexible material, can deform, and is easy to insert and takes out.
Brief description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is Fig. 1 side view.
Fig. 3 is Fig. 1 top view.
Fig. 4 is the top view after present invention deformation.
In figure：1st, bite-block main body, 2, the bite-block wing on the outside of oral cavity, 3, Handheld Division, 4, sputum aspirator tube jack, 5, fixed card slot, 6,
Inflating catheter, 7, air bag, 8, the bite-block wing on the inside of oral cavity, 9, medical elastic material layer, 10, tracheal catheter entrance, 21, resilient protection
Layer.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
Embodiment 1：
The gum protection type bite-block used in a kind of endotracheal intubation as shown in Fig. 1 ~ Fig. 4, it includes bite-block main body 1, mouth
The bite-block wing 2 on the outside of chamber, the oral cavity inner side bite-block wing 8, the center of bite-block main body 1 is provided with tracheal catheter fixed card slot 5, outside oral cavity
The middle of the pad wing 8 phase the same side is provided with tracheal catheter entrance 10, tracheal catheter fixed card slot on the inside of the side bite-block wing 2 and oral cavity
5 communicate with tracheal catheter entrance 10.The bite-block wing 2 on the outside of bite-block main body 1, oral cavity, the oral cavity inner side bite-block wing 8 all use medical silicon
Glue, medical elastic material layer 9 is provided with the inwall of conduit fixed card slot 5, the material of medical elastic material layer 9 is medical polychlorostyrene
Ethene.Elastic protective layer 21 is provided with the outside of oral cavity on the madial wall of the bite-block wing 2.Set on the inside of the oral cavity on the inwall of the bite-block wing 8
Air bag 7 is equipped with, inflating catheter 6 is connected with the air bag 7, the inflating catheter 6 passes through bite-block main body 1, leads to the mouth of bite-block
On the outside of chamber.Sputum aspirator tube jack 4 is provided with bite-block main body 1.The both sides of bite-block main body 1 are provided with Handheld Division 3.
Embodiment 2：
The gum protection type bite-block used in a kind of endotracheal intubation as shown in Fig. 1 ~ Fig. 4, it includes bite-block main body 1, mouth
The bite-block wing 2 on the outside of chamber, the oral cavity inner side bite-block wing 8, the center of bite-block main body 1 is provided with tracheal catheter fixed card slot 5, outside oral cavity
The middle of the pad wing 8 phase the same side is provided with tracheal catheter entrance 10, tracheal catheter fixed card slot on the inside of the side bite-block wing 2 and oral cavity
5 communicate with tracheal catheter entrance 10.The bite-block wing 2 on the outside of bite-block main body 1, oral cavity, the oral cavity inner side bite-block wing 8 all use natural rubber
Glue, medical elastic material layer 9 is provided with the inwall of conduit fixed card slot 5, the material of medical elastic material layer 9 is medical poly- ammonia
Ester.Elastic protective layer 21 is provided with the outside of oral cavity on the madial wall of the bite-block wing 2.Set on the inside of the oral cavity on the inwall of the bite-block wing 8
There is air bag 7, inflating catheter 6 is connected with the air bag 7, the inflating catheter wears 6 and crosses bite-block main body 1, leads to the oral cavity of bite-block
Outside.Sputum aspirator tube jack 4 is provided with bite-block main body 1.The both sides of bite-block main body 1 are provided with Handheld Division 3.
Claims (8)
1. the gum protection type bite-block used in a kind of endotracheal intubation, including the bite-block wing on the outside of bite-block main body, oral cavity, oral cavity
The inner side bite-block wing, it is characterised in that：Described gum protection type bite-block can agree with completely with upper and lower alveolus, the bite-block main body
Center is provided with tracheal catheter fixed card slot, and the middle of the bite-block wing and oral cavity inner side pad wing phase the same side is set on the outside of oral cavity
Tracheal catheter entrance is equipped with, the tracheal catheter fixed card slot communicates with tracheal catheter entrance, described bite-block main body and bite-block
The wing arbitrarily amplitude can be bent.
2. the gum protection type bite-block used in endotracheal intubation according to claim 1, it is characterised in that：The tooth
The bite-block wing on the outside of pad main body, oral cavity, the oral cavity inner side bite-block wing all use medical flexible material, the inwall of the conduit fixed card slot
On be provided with medical elastic material layer.
3. the gum protection type bite-block used in endotracheal intubation according to claim 2, it is characterised in that：The doctor
Medical silica-gel, natural rubber, polyurethane, thermoplastic elastomer (TPE), haloflex, the medical elastic material are selected from flexible material
The material of the bed of material is selected from medical silica-gel, natural rubber, polyurethane, polyvinyl chloride, polyethylene, polypropylene, polystyrene, poly- carbonic acid
Ester, ABS, polyamide, polysulfones.
4. the gum protection type bite-block used in endotracheal intubation according to claim 2, it is characterised in that：The doctor
It is medical silica-gel with flexible material, the material of the medical elastic material layer is polyvinyl chloride.
5. the gum protection type bite-block used in endotracheal intubation according to claim 1, it is characterised in that：The mouth
Air bag is provided with the bite-block wing inwall of intracavitary side, inflating catheter is connected with the air bag, the inflating catheter passes through bite-block master
Body, lead on the outside of the oral cavity of bite-block.
6. the gum protection type bite-block used in endotracheal intubation according to claim 1, it is characterised in that：The mouth
On the outside of chamber elastic protective layer is provided with the madial wall of the bite-block wing.
7. the gum protection type bite-block used in endotracheal intubation according to claim 1, it is characterised in that：The tooth
Sputum aspirator tube jack is provided with pad main body.
8. the gum protection type bite-block used in endotracheal intubation according to claim 1, it is characterised in that：The tooth
Pad main body both sides are provided with Handheld Division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307445.4A CN107823769B (en) | 2017-12-11 | 2017-12-11 | Gum protection type bite-block used in endotracheal intubation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307445.4A CN107823769B (en) | 2017-12-11 | 2017-12-11 | Gum protection type bite-block used in endotracheal intubation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107823769A true CN107823769A (en) | 2018-03-23 |
| CN107823769B CN107823769B (en) | 2024-01-30 |
Family
ID=61642857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711307445.4A Active CN107823769B (en) | 2017-12-11 | 2017-12-11 | Gum protection type bite-block used in endotracheal intubation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107823769B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771779A (en) * | 2019-03-08 | 2019-05-21 | 四川大学华西医院 | A kind of tongue body protector and its application method |
| CN110215589A (en) * | 2019-07-15 | 2019-09-10 | 王薇薇 | Tracheal catheter oral cavity internal fixation device |
| CN110652275A (en) * | 2019-09-29 | 2020-01-07 | 华中科技大学鄂州工业技术研究院 | Endoscope |
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| CN203989415U (en) * | 2014-08-21 | 2014-12-10 | 南阳医学高等专科学校第一附属医院 | A kind of Digestive System Department intubate fixture |
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| CN206434681U (en) * | 2016-10-12 | 2017-08-25 | 上海交通大学医学院附属上海儿童医学中心 | A kind of disposable teeth pad for tracheal cannula |
| CN208176721U (en) * | 2017-12-11 | 2018-12-04 | 重庆奥基医药科技有限公司 | Gum protection type bite-block used in a kind of endotracheal intubation |
-
2017
- 2017-12-11 CN CN201711307445.4A patent/CN107823769B/en active Active
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| GB699950A (en) * | 1952-06-18 | 1953-11-18 | Victor Howard Carpenter | Teeth protector |
| US20020189613A1 (en) * | 2001-06-14 | 2002-12-19 | Fitton Russell P. | Anatomical mouthpiece with retaining wings and method of use |
| CN102357272A (en) * | 2011-09-13 | 2012-02-22 | 王秋筠 | Safe teeth cushion for endotracheal intubation |
| CN202236756U (en) * | 2011-09-13 | 2012-05-30 | 王秋筠 | Safe tooth pad used in endotracheal intubation |
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| CN203710507U (en) * | 2014-01-21 | 2014-07-16 | 王守福 | Novel oropharyngeal airway |
| CN203989415U (en) * | 2014-08-21 | 2014-12-10 | 南阳医学高等专科学校第一附属医院 | A kind of Digestive System Department intubate fixture |
| WO2016077153A2 (en) * | 2014-11-12 | 2016-05-19 | Haider Biologics LLC | Bite block |
| CN205287163U (en) * | 2015-12-20 | 2016-06-08 | 董补怀 | Tracheal catheter fixation ware with safety protection function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771779A (en) * | 2019-03-08 | 2019-05-21 | 四川大学华西医院 | A kind of tongue body protector and its application method |
| CN110215589A (en) * | 2019-07-15 | 2019-09-10 | 王薇薇 | Tracheal catheter oral cavity internal fixation device |
| CN110652275A (en) * | 2019-09-29 | 2020-01-07 | 华中科技大学鄂州工业技术研究院 | Endoscope |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107823769B (en) | 2024-01-30 |
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