CN113750341B - Tracheal tube fixing device - Google Patents
Tracheal tube fixing device Download PDFInfo
- Publication number
- CN113750341B CN113750341B CN202111199112.0A CN202111199112A CN113750341B CN 113750341 B CN113750341 B CN 113750341B CN 202111199112 A CN202111199112 A CN 202111199112A CN 113750341 B CN113750341 B CN 113750341B
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- China
- Prior art keywords
- protrusion
- fixing
- groove
- fixing ring
- teeth
- 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.)
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Links
- 206010036790 Productive cough Diseases 0.000 claims abstract description 9
- 210000003802 sputum Anatomy 0.000 claims abstract description 9
- 208000024794 sputum Diseases 0.000 claims abstract description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000002627 tracheal intubation Methods 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000001356 surgical procedure Methods 0.000 abstract description 2
- 230000009977 dual effect Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 230000008733 trauma Effects 0.000 abstract 1
- 210000003437 trachea Anatomy 0.000 description 24
- 210000000214 mouth Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000002390 adhesive tape Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 206010002091 Anaesthesia Diseases 0.000 description 3
- 230000037005 anaesthesia Effects 0.000 description 3
- 210000004283 incisor Anatomy 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 210000004704 glottis Anatomy 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000009958 sewing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000002316 cosmetic surgery Methods 0.000 description 1
- 238000007428 craniotomy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000002695 general anesthesia Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 238000005399 mechanical ventilation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000000472 traumatic 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. ventilators; Tracheal tubes
- A61M16/04—Tracheal tubes
- A61M16/0488—Mouthpieces; Means for guiding, securing or introducing the tubes
- A61M16/0497—Tube stabilizer
-
- 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. ventilators; 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
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Emergency Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
本发明公开了一种气管插管固定装置，包括固定环，固定环中心设置有与气管插管相匹配的固定孔，固定环一侧设置有供吸痰管通过的插孔，固定环另一侧为活动端，固定环另一侧的一端设置有第一凸起，第一凸起靠近固定孔一侧设置有第一凹槽，固定环上还设置有第二凸起和第三凸起，第二凸起和第三凸起之间设置有第二凹槽，第三凸起和第一凹槽相匹配，第一凸起和第二凸起外侧设置有与牙垫相匹配的固定槽，第一凸起两侧设置有若干固定齿，第二凸起和第三凸起内侧设置有与固定齿相匹配的微齿。本发明结构简单，固定牢靠，能够实现气管插管的内外双重固定，有效解决了现有技术中固定不牢靠易脱落、妨碍手术进行产生创伤和没有活动度等问题。
The present invention discloses a tracheal cannula fixing device, comprising a fixing ring, a fixing hole matching the tracheal cannula is arranged at the center of the fixing ring, a jack for a sputum suction tube to pass through is arranged on one side of the fixing ring, a movable end is arranged on the other side of the fixing ring, a first protrusion is arranged on one end of the other side of the fixing ring, a first groove is arranged on the first protrusion near the fixing hole, a second protrusion and a third protrusion are also arranged on the fixing ring, a second groove is arranged between the second protrusion and the third protrusion, the third protrusion matches the first groove, a fixing groove matching the tooth pad is arranged on the outside of the first protrusion and the second protrusion, a plurality of fixing teeth are arranged on both sides of the first protrusion, and micro teeth matching the fixing teeth are arranged on the inside of the second protrusion and the third protrusion. The present invention has a simple structure and is firmly fixed, and can realize the internal and external dual fixation of the tracheal cannula, effectively solving the problems of unreliable fixation and easy falling off, hindering surgery to produce trauma, and lack of mobility in the prior art.
Description
Technical Field
The invention belongs to the technical field of trachea cannula fixing equipment, and particularly relates to a trachea cannula fixing device.
Background
The trachea cannula is a common airway management technology for general anesthesia, and can be used for mechanical ventilation to ensure that the human body is not anoxic; the air passage can also be protected, and the oral cavity content can be prevented from flowing into the air pipe to cause aspiration. The tracheal cannula needs to be firmly fixed to prevent the insertion from being too deep or accidentally pulled out, especially the accidental pull-out can be a fatal event in many cases, such as some operations in prone position, such as posterior decompression of cervical spine, posterior craniotomy, or some cases that the trachea cannot be pulled out immediately after the operation, such as difficult airways, etc. Some of the immobilization methods currently in clinical use include: 1. after the tooth pad is placed, the tooth pad and the trachea cannula are bound together by using an adhesive tape, and then are reinforced by using a bandage or a film to be fixed on the face or the face neck; 2. binding the trachea cannula with thick thread, and tying on teeth; 3. suturing the tracheal cannula on the patient's lips with a thick thread; 4. a professional "mask type" tracheal cannula holder was used. These fixing methods are all external in nature, and have a number of disadvantages: 1. is not firm enough and has the risk of falling off; 2. the operation is complex, and the practical application is inconvenient; 3. some are traumatic, resulting in bleeding of the lips or gums; 4. the head and face parts are prevented from being disinfected during the operation; 5. the left and right mobility in the oral cavity is not generated, and the operation in the oral cavity is affected.
Disclosure of Invention
Aiming at the defects, the tracheal cannula fixing device provided by the invention is simple in structure and firm in fixation, can realize double fixation of the tracheal cannula inside and outside, and effectively solves the problems that the fixation is not firm and easy to fall off, the operation is prevented from being wounded, the activity is not available and the like in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a trachea cannula fixing device, including solid fixed ring, gu fixed ring center is provided with the fixed orifices with trachea cannula assorted, gu fixed ring one side is provided with the jack that supplies the sputum aspirator to pass through, gu fixed ring opposite side is the loose end, gu fixed ring opposite side's one end is provided with first arch, gu first arch is close to fixed orifices one side and is provided with first recess, gu fixed ring is last still to be provided with second arch and third arch, be provided with the second recess between second arch and the third arch, second recess and first protruding assorted, third arch and first recess assorted, first arch and second protruding outside are provided with bite-block assorted fixed slot, first protruding both sides are provided with a plurality of fixed teeth opposite with the closed direction, second arch and third protruding inboard are provided with fixed tooth assorted micro tooth.
The beneficial effects of the invention are as follows: when the fixing ring is used, the movable end of the fixing ring is opened and clamped on the trachea cannula, the trachea cannula passes through the fixing hole, then the first bulge is closed and inserted into the second groove along the clockwise direction, a plurality of fixing teeth on two sides of the first bulge are meshed and matched with micro teeth on the inner sides of the second bulge and the third bulge, after the first bulge is closed, the first bulge cannot be taken out from the first groove along the anticlockwise direction, the anticlockwise extraction is determined by the setting directions of the fixing teeth and the micro teeth, the anticlockwise extraction is the interference of the fixing teeth and the micro teeth, the disengaging effect cannot be achieved, the trachea cannula can be firmly fixed, a notch, namely a fixing groove, can be formed on the outer side after the first bulge is closed, and the notch can be used for the placement of a sputum aspirator tube and the fixation of a bite pad. When only the fixing ring is adopted, the sputum suction tube can enter from the jack or the fixing groove, and only the inner fixing of the trachea cannula is carried out at the moment; when the bite-block is used at the fixing groove, the fixing ring and the bite-block are simultaneously fixed, so that the internal and external double fixation is realized. The trachea cannula fixing device is firm in fixation, can adopt inner and outer fixation at the same time, is more firm than the existing adhesive tape or bandage and mask type fixation, is not easy to fall off, does not exist interference objects such as the bandage and the like, influences the operation, has certain activity degree because of not adopting the adhesive tape and the like for fixation, can be properly adjusted, has wider application scene and is convenient to popularize and apply.
Further, a marking line for positioning is arranged on the fixing ring.
The beneficial effects of adopting the further scheme are as follows: the marking line is overlapped with the cuff inflation line of the trachea cannula during fixing or is positioned right in front of a human body and used for integrally positioning and fixing the fixing device.
Further, the diameter of the fixing hole is 9-10.5mm.
Further, the thickness of the fixing ring is 5-8mm.
Further, the diameter of the insertion hole is 4-6mm.
Further, baffles are arranged on two sides of the first groove and the second groove.
The beneficial effects of adopting the further scheme are as follows: the baffle is used for preventing the first bulge and the like from falling off from the corresponding groove, so that the first bulge and the like cannot be pulled out in the opposite direction after being inserted, cannot slip off from the side surface, and is more firm and compact in fixation.
Further, the outer layer of the fixing ring is made of silica gel, rubber or cotton cloth.
The beneficial effects of adopting the further scheme are as follows: the inner layer is made of plastic, the outer layer and the inner layer are tightly connected through a hot melting or sewing method, the inner layer is required to be nontoxic and antigen-free, does not change after meeting water, does not deform after being needled, and has certain plasticity.
Drawings
FIG. 1 is a schematic view of an endotracheal tube fixing device with open;
FIG. 2 is a schematic view of the endotracheal tube fixing device closed;
wherein, 1, fixing ring; 2. a fixing hole; 3. a jack; 4. a marking line; 5. a first protrusion; 6. a second protrusion; 7. a third protrusion; 8. a first groove; 9. a fixing groove.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
In one embodiment of the invention, as shown in fig. 1-2, there is provided an endotracheal intubation fixing device, which comprises a fixing ring 1, a fixing hole 2 matched with the endotracheal intubation is arranged in the center of the fixing ring 1, a jack 3 for a sputum suction tube to pass through is arranged on one side of the fixing ring 1, a movable end is arranged on the other side of the fixing ring 1, a first bulge 5 is arranged on one end of the other side of the fixing ring 1, a first groove 8 is arranged on one side of the first bulge 5 close to the fixing hole 2, a second bulge 6 and a third bulge 7 are further arranged on the fixing ring 1, a second groove is arranged between the second bulge 6 and the third bulge 7, the second groove is matched with the first bulge 5, a fixing groove 9 matched with a tooth pad is arranged on the outer side of the first bulge 5 and the second bulge 6, a plurality of fixing teeth opposite to the closing direction are arranged on two sides of the first bulge 5, and micro teeth matched with the fixing teeth are arranged on the inner sides of the second bulge 6 and the third bulge 7. When the fixing ring is used, the movable end of the fixing ring 1 is opened and clamped on the trachea cannula, the trachea cannula passes through the fixing hole 2, then the first bulge 5 is closed and inserted into the second groove along the clockwise direction, a plurality of fixing teeth on two sides of the first bulge 5 are meshed and matched with micro teeth on the inner sides of the second bulge 6 and the third bulge 7, after the first bulge 5 is closed, the first bulge 5 cannot be taken out from the first groove 8 along the anticlockwise direction, the anticlockwise extraction is determined by the setting directions of the fixing teeth and the micro teeth, the anticlockwise extraction is that the fixing teeth and the micro teeth interfere, the effect of disengagement cannot be achieved, the trachea cannula can be firmly fixed, a notch, namely a fixing groove 9, is formed on the outer side after the first bulge 5 is closed, and the notch can be used for the placement of a sputum aspirator tube and the fixation of a tooth pad. When only the fixing ring 1 is adopted, the sputum suction tube can enter from the jack 3 or the fixing groove 9, and only the inner fixing of the trachea cannula is carried out at the moment; when the bite-block is used at the fixing groove 9, the fixing ring 1 and the bite-block are simultaneously fixed, so that the internal and external double fixation is realized. The trachea cannula fixing device is firm in fixation, can adopt inner and outer fixation at the same time, is more firm than the existing adhesive tape or bandage and mask type fixation, is not easy to fall off, does not exist interference objects such as the bandage and the like, influences the operation, has certain activity degree because of not adopting the adhesive tape and the like for fixation, can be properly adjusted, has wider application scene and is convenient to popularize and apply.
The fixed ring 1 is provided with a marking line 4 for positioning; the marking line 4 is overlapped with the cuff inflation line of the trachea cannula during fixing or is positioned right in front of a human body and used for integrally positioning and fixing the fixing device. The diameter of the fixing hole 2 is 9-10.5mm, the thickness of the fixing ring 1 is 5-8mm, the diameter of the insertion hole 3 is 4-6mm, and the diameter of the fixing ring 1 can be 25mm, 27mm or 29mm. Baffles are arranged on two sides of the first groove 8 and the second groove; the baffle is used for preventing the first bulge 5 and the like from falling off from the corresponding groove, so that the first bulge 5 and the like cannot be pulled out in the opposite direction after being inserted, cannot slip off from the side surface, and is more firm and compact in fixation. The outer layer of the fixing ring 1 is made of silica gel, rubber or cotton cloth; the inner layer is made of plastic, the outer layer and the inner layer are tightly connected through a hot melting or sewing method, the inner layer is required to be nontoxic and antigen-free, does not change after meeting water, does not deform after being needled, and has certain plasticity.
Taking adult female hump nose operation as an example, selecting a proper model according to the opening degree of a patient and the operation requirement, selecting a tracheal cannula fixing device with the diameter of 2.7 # according to the invention, selecting a 6.5 # reinforced tracheal cannula, putting on sterile gloves after opening the package, taking out the fixing ring 1, aligning the marking line 4 with the cuff inflation line of the tracheal catheter or with the front middle line of a human body after the cannula, breaking off after using, and then clamping at the position of 20cm of the tracheal cannula (can be adjusted by referring to the neck length of the patient), so as to ensure clamping and not to slide left and right and up and down. After anesthesia induction, the laryngoscope exposes the glottis, the trachea cannula is inserted, the cuff is passed through the glottis, the fixing ring 1 is withdrawn from the laryngoscope when being outside the incisors, the mouth of a patient is separated by a back biting method, and the fixing ring 1 is inserted into the mouth after being inclined and is clamped by the upper incisors and the lower incisors. The intraoperative needs to maintain a certain anesthesia depth, so long as a patient does not actively open a large mouth, the tracheal cannula can not be taken off, and after facial disinfection, the mouth can be sealed by the sterile film to ensure sterility by isolating the intraoral cavity from the operation area, so that the patient is prevented from accidentally opening the mouth. After the operation is finished, under the anesthesia state, the oral cavity is thoroughly cleaned by the sputum suction tube through the left and right openings of the fixed ring 1, and then the bite-block is placed through the right opening, so that the trachea cannula is prevented from being bitten when a patient wakes up. And after the patient is completely awakened, ordering the patient to open the large mouth, loosening the tracheal tube and then pulling out the tracheal tube.
Taking the posterior decompression of cervical vertebra as an example, the internal and external double fixation method is taught, the internal fixation method is the same as the previous method, then the dental pad is put into the right side fixing groove 9, the dental pad is adhered to the face of a patient by using adhesive tape and a sticking film, and after the internal and external double fixation, the internal and external double fixation is more reliable than the pure external fixation. The trachea cannula fixing device has the characteristics of reliability, simplicity, convenience, no damage, time saving and the like, is suitable for various scenes, and is particularly suitable for cosmetic surgery and cervical vertebra surgery.
Although specific embodiments of the invention have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (5)
1. The tracheal intubation fixing device is characterized by comprising a fixing ring, wherein a fixing hole matched with the tracheal intubation is formed in the center of the fixing ring, an insertion hole for a sputum suction tube to pass through is formed in one side of the fixing ring, a movable end is arranged on the other side of the fixing ring, a first protrusion is arranged at one end of the other side of the fixing ring, a first groove is formed in one side, close to the fixing hole, of the first protrusion, a second protrusion and a third protrusion are further formed in the fixing ring, a second groove is formed between the second protrusion and the third protrusion, the second groove is matched with the first protrusion, the third protrusion is matched with the first groove, a fixing groove matched with a tooth pad is formed in the outer side of the first protrusion, a plurality of fixing teeth opposite to the closing direction are formed in the two sides of the first protrusion, and micro teeth matched with the fixing teeth are formed in the inner sides of the second protrusion and the third protrusion; baffles are arranged on two sides of the first groove and the second groove; the outer layer of the fixing ring is made of silica gel, rubber or cotton cloth, and the inner layer is made of plastic.
2. The endotracheal tube fixing device of claim 1 wherein said fixing ring is provided with a marking line for positioning.
3. The endotracheal tube fixing device of claim 1 wherein said fixing hole has a diameter of 9-10.5mm.
4. The endotracheal tube fixing device of claim 1 wherein said fixing ring has a thickness of 5-8mm.
5. The endotracheal tube fixing device of claim 1 wherein said receptacle has a diameter of 4-6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199112.0A CN113750341B (en) | 2021-10-14 | 2021-10-14 | Tracheal tube fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111199112.0A CN113750341B (en) | 2021-10-14 | 2021-10-14 | Tracheal tube fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113750341A CN113750341A (en) | 2021-12-07 |
| CN113750341B true CN113750341B (en) | 2024-11-22 |
Family
ID=78799512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111199112.0A Active CN113750341B (en) | 2021-10-14 | 2021-10-14 | Tracheal tube fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113750341B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114042219A (en) * | 2021-12-17 | 2022-02-15 | 严波 | A side opening sealing painless gastroscope anesthesia mask |
| CN114082066A (en) * | 2021-12-17 | 2022-02-25 | 严波 | A wrap-around anesthesia mask for laryngeal blades |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203816021U (en) * | 2014-04-30 | 2014-09-10 | 青岛大学医学院附属医院 | Fixer for oral trachea cannula |
| CN212593390U (en) * | 2020-02-20 | 2021-02-26 | 成都市第一人民医院 | Trachea cannula fixing device |
| CN216022566U (en) * | 2021-10-14 | 2022-03-15 | 严波 | Trachea cannula fixing device |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069206A (en) * | 1990-06-11 | 1991-12-03 | Crosbie David B | Endotracheal tube clutch |
| US6408850B1 (en) * | 1993-02-09 | 2002-06-25 | Michael Sudge | Medical tube holder apparatus |
| US6634359B1 (en) * | 2000-11-14 | 2003-10-21 | Insight Medical Design, Inc. | Tracheal tube holding device |
| US20160095995A1 (en) * | 2013-05-13 | 2016-04-07 | Haider Biologics LLC | Bite block |
| CN203539831U (en) * | 2013-11-18 | 2014-04-16 | 屈琳林 | Trachea cannula fixing device |
| CN204637217U (en) * | 2015-02-02 | 2015-09-16 | 中国人民解放军第三军医大学第三附属医院 | Tracheal intubation |
| CN205515886U (en) * | 2016-03-10 | 2016-08-31 | 胡安民 | Fixed practical bite -block through mouthful endotracheal tube |
| CN210355594U (en) * | 2018-11-30 | 2020-04-21 | 泰州市人民医院 | A new type of tracheal intubation fixator |
| CN210106757U (en) * | 2019-05-09 | 2020-02-21 | 泰铂（上海）环保科技股份有限公司 | A new type of quick-release pipe clamp |
| CN110215589A (en) * | 2019-07-15 | 2019-09-10 | 王薇薇 | Tracheal catheter oral cavity internal fixation device |
| CN213911853U (en) * | 2020-07-15 | 2021-08-10 | 杭州市第一人民医院 | Multifunctional oral intubation fixer |
-
2021
- 2021-10-14 CN CN202111199112.0A patent/CN113750341B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203816021U (en) * | 2014-04-30 | 2014-09-10 | 青岛大学医学院附属医院 | Fixer for oral trachea cannula |
| CN212593390U (en) * | 2020-02-20 | 2021-02-26 | 成都市第一人民医院 | Trachea cannula fixing device |
| CN216022566U (en) * | 2021-10-14 | 2022-03-15 | 严波 | Trachea cannula fixing device |
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| CN113750341A (en) | 2021-12-07 |
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