CN109770838B - Supporting device for dental incisor examination and treatment - Google Patents
Supporting device for dental incisor examination and treatment Download PDFInfo
- Publication number
- CN109770838B CN109770838B CN201910165596.3A CN201910165596A CN109770838B CN 109770838 B CN109770838 B CN 109770838B CN 201910165596 A CN201910165596 A CN 201910165596A CN 109770838 B CN109770838 B CN 109770838B
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- Prior art keywords
- rod
- rubber sheet
- horizontal
- dental
- horizontal rod
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Links
- 210000004283 incisor Anatomy 0.000 title claims abstract description 27
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 210000000214 mouth Anatomy 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 10
- 210000003128 head Anatomy 0.000 abstract description 2
- 208000002925 dental caries Diseases 0.000 description 5
- 208000014151 Stomatognathic disease Diseases 0.000 description 3
- 210000005036 nerve Anatomy 0.000 description 3
- 210000003464 cuspid Anatomy 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 201000001245 periodontitis Diseases 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 208000018035 Dental disease Diseases 0.000 description 1
- 206010023146 Jaw cyst Diseases 0.000 description 1
- 206010028851 Necrosis Diseases 0.000 description 1
- 206010031252 Osteomyelitis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001055 chewing effect Effects 0.000 description 1
- 208000001277 chronic periodontitis Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003074 dental pulp Anatomy 0.000 description 1
- 230000001079 digestive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001839 endoscopy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 208000007565 gingivitis Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000003254 palate Anatomy 0.000 description 1
- 208000004480 periapical periodontitis Diseases 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Images
Abstract
A supporting device for dental incisor examination and treatment relates to a tooth supporting device, wherein the middle part of an elastic rod is arranged to be of an M-shaped structure, a horizontal rod A (9) and a horizontal rod B (13) are respectively arranged outside two end heads of the elastic rod of the M-shaped structure, tooth cushion blocks (28) are respectively arranged at the outer ends, close to the outer ends, of the horizontal rod A and the horizontal rod B, the outer ends of the horizontal rod A and the horizontal rod B are respectively connected with the lower ends of an outer supporting rod A (3) and an outer supporting rod B (19), a rubber sheet A (4) is arranged outside the outer supporting rod A, and a rubber sheet B (18) is arranged outside the outer supporting rod B; the invention utilizes the elasticity of the elastic rod to be conveniently sent into the oral cavity, the teeth are prevented from being occluded in the treatment process through the tooth cushion block, and the rubber sheet can enlarge the oral cavity to reserve enough space for the treatment process.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to a tooth supporting device, in particular to a supporting device for dental front tooth examination and treatment.
[ background of the invention ]
It is known that teeth are the first process for people to put food into the abdomen, large food can be decomposed into small pieces by chewing with teeth, and the food is convenient for swallowing on one hand and the digestive difficulty of the stomach on the other hand after being decomposed into small pieces; the dental disease is a common disease, namely a disease of hard tissues of teeth, and the existing dental diseases commonly suffered by Chinese people are mainly divided into four categories, wherein the first category is dental caries, the prevalence rate is 50%, 2.5 dental caries exist in the mouth of each adult, 4.5 dental caries exist in the mouth of each child, the second category is periodontitis, the prevalence rate is 80%, the third category is malformed teeth, the prevalence rate is 50%, most of the dental caries enter and exit, the fourth category is edentulous, most of the dental caries exist in the mouth of people over 65, and the average tooth retention amount in the mouth of each person is only 8 teeth. The types of dental diseases in the medical field are mainly divided into the following types: infection of residual crown and root, dead teeth due to tooth nerve necrosis, chronic periodontitis, periapical periodontitis, gingivitis, infected jaw cyst, gap infection of oral cavity and face, osteomyelitis of jaw, etc.; when treating or checking teeth, doctors need patients to open mouths in a matching way, and then use mouth endoscopy to check; when the appliances such as the probe, the pick, the needle and the like contacting the dental nerves are used, the patient can feel sharp pain, and once the patient cannot tolerate the biting of the upper jaw and the lower jaw, the probe, the pick or the needle can be directly pricked into the dental nerves by the dental pulp of the teeth to injure the patient, so that the doctor and the patient are further involved in disputes.
[ summary of the invention ]
In order to overcome the defects in the background technology, the invention discloses a supporting device for dental incisor examination and treatment, which is convenient to feed into the oral cavity by utilizing the elasticity of an elastic rod, teeth are prevented from being occluded in the treatment process through a tooth cushion block, and a rubber sheet can expand the oral cavity to reserve enough space for the treatment process.
The technical scheme for realizing the invention is as follows:
the utility model provides a strutting arrangement is used in dentistry incisor examination treatment, includes elastic rod, tooth cushion and sheet rubber, and the middle part of elastic rod sets up to M shape structure, is equipped with horizon bar A and horizon bar B respectively in the outside of M shape structure elastic rod's both ends head, and horizon bar A and horizon bar B be close to the outer end and be equipped with the tooth cushion respectively, horizon bar A and horizon bar B outer end are connected with outer bracing piece A and outer bracing piece B's lower extreme respectively, and outer bracing piece A's outside is equipped with sheet rubber A, and outer bracing piece B's outside is equipped with sheet rubber B.
Dental department's supporting device for incisor tooth inspection treatment, the lower extreme of outer bracing piece A is connected to the horizon bar A outer end of elastic rod, horizon bar A inner is connected with outer pole setting A's lower extreme, outer pole setting A's upper end is connected and is connected interior pole setting A upper end through circular arc bending A, interior pole setting A's lower extreme is connected with middle part horizon bar one end, interior pole setting B lower extreme is connected to the other end of middle part horizon bar, interior pole setting B upper end is connected outer pole setting B upper end through circular arc bending B, outer pole setting B lower extreme is connected with horizon bar B inner, horizon bar B's outer end and outer bracing piece B lower extreme are connected.
The middle parts of the outer supporting rod A and the outer supporting rod B are respectively outwards arc-shaped and convex.
The supporting device for dental incisor examination and treatment is characterized in that the middle parts of the horizontal rod A and the horizontal rod B are respectively provided with a bend, and the middle M-shaped arc-shaped bulge facing the upper jaw of the oral cavity in the elastic rod is obtained by bending the horizontal rod A and the horizontal rod B.
Dental department's supporting device for incisor tooth inspection treatment, sheet rubber A and sheet rubber B are the same structure, sheet rubber A's medial surface is equipped with protruding cover A and protruding cover B respectively from top to bottom, is equipped with perforation A on the protruding cover A, is equipped with perforation B on the protruding cover B.
Support arrangement is used in dentistry incisor tooth inspection treatment, sheet rubber A and sheet rubber B are oval structure, are also equipped with the excessive A of circular arc respectively between sheet rubber A's both sides and the upper end promptly, are equipped with the excessive B of circular arc between sheet rubber A's both sides and the lower extreme respectively.
The supporting device for dental incisor examination and treatment is characterized in that the rubber sheet A and the rubber sheet B are made of food-grade silica gel.
The supporting device for dental incisor examination and treatment is characterized in that tooth cushion blocks arranged at the outer ends of the horizontal rod A and the horizontal rod B respectively are of the same structure, through holes are formed in the middles of two side walls of the tooth cushion blocks, protrusions A are arranged on two sides of the upper portion face of each tooth cushion block respectively, a groove A is formed between the two protrusions A, another two protrusions A are arranged on two sides of the lower portion face of each tooth cushion block respectively, and a lower portion groove A is formed between the other two protrusions A.
The supporting device for dental incisor examination and treatment is characterized in that the height of the inner surface of the tooth cushion block is two thirds of the height of the outer surface.
The supporting device for dental incisor examination and treatment is characterized in that the tooth cushion block is made of food-grade silica gel.
Through the disclosure, the beneficial effects of the invention are as follows:
according to the supporting device for examining and treating the dental incisors, the elastic rod with the M-shaped structure is arranged between the horizontal rod A and the horizontal rod B, the process of feeding the dental incisors into the oral cavity is facilitated by utilizing the compression of the elastic rod, the upper molar teeth and the lower molar teeth of the teeth bite the tooth cushion block during use, the injury of the occlusion of the teeth to a patient during the treatment process is obtained, and the two rubber sheets can expand the oral cavity to reserve a sufficient operating space for a doctor during the treatment process; the rubber sheet A, the rubber sheet B and the two tooth cushion blocks are made of silica gel materials, and can be used repeatedly after being sterilized at high temperature after being used, and the elastic rod can also be used repeatedly after being sterilized at high temperature.
[ description of the drawings ]
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the resilient lever structure of the present invention;
FIG. 3 is a view from the direction A of FIG. 2;
FIG. 4 is a schematic view of the inner side surface of the rubber sheet A of the present invention;
FIG. 5 is a schematic perspective view of a bite block of the present invention;
FIG. 6 is a schematic view of the distribution of teeth within the oral cavity;
in the figure: 1. bending an arc A; 2. a convex sleeve A; 3. an outer support rod A; 4. a rubber sheet A; 5. an outer upright rod A; 6. a groove A; 7. a convex sleeve B; 8. a protrusion A; 9. a horizontal rod A; 10. an inner vertical rod A; 11. a middle horizontal bar; 12. an inner vertical rod B; 13. a horizontal bar B; 14. a protrusion B; 15. a convex sleeve C; 16. a groove B; 17. an outer upright rod B; 18. a rubber sheet B; 19. an outer support rod B; 20. a convex sleeve D; 21. bending the arc B; 22. arc transition A; 23. punching a hole A; 24. punching a hole B; 25. arc transition B; 26. a through hole; 27. an inner face; 28. a tooth cushion block; 29. putting the lips on; 30. upper incisors; 31. upper molar; 32. a tongue; 33. lower molars; 34. canine teeth; 35. lower incisors; 36. the lower lip.
[ detailed description ] embodiments
The present invention will be further illustrated with reference to the following examples; the following examples are not intended to limit the present invention, and are only used as a support for the implementation of the present invention, and any equivalent structure replacement within the technical framework of the present invention is included in the protection scope of the present invention;
the supporting device for dental incisor examination and treatment described in conjunction with fig. 1 to 5 comprises an elastic rod, a tooth cushion block 28 and a rubber sheet, wherein the middle of the elastic rod is of an M-shaped structure, a horizontal rod a9 and a horizontal rod B13 are respectively arranged outside two ends of the elastic rod of the M-shaped structure, the tooth cushion block 28 is respectively arranged near the outer ends of the horizontal rod a9 and the horizontal rod B13, the outer ends of the horizontal rod a9 and the horizontal rod B13 are respectively connected with the lower ends of an outer supporting rod A3 and an outer supporting rod B19, the rubber sheet a4 is arranged outside the outer supporting rod A3, and the rubber sheet B18 is arranged outside the outer supporting rod B19.
With reference to fig. 1 or 2, the outer end of a horizontal rod a9 of the elastic rod is connected to the lower end of an outer support rod A3, the inner end of a horizontal rod a9 is connected to the lower end of an outer vertical rod A5, the upper end of an outer vertical rod A5 is connected to the upper end of an inner vertical rod a10 through an arc bend a1, the lower end of the inner vertical rod a10 is connected to one end of a middle horizontal rod 11, the other end of the middle horizontal rod 11 is connected to the lower end of an inner vertical rod B12, the upper end of an inner vertical rod B12 is connected to the upper end of an outer vertical rod B17 through an arc bend B21, the lower end of the outer vertical rod B17 is connected to the inner end of a horizontal rod B13, and the outer end of the horizontal rod B13 is connected to the lower end of an outer support rod B19; the middle parts of the outer supporting rod A3 and the outer supporting rod B19 are respectively outwards arched and convex.
With reference to fig. 1, 2 or 3, the middle portions of the horizontal bar a9 and the horizontal bar B13 are respectively provided with a bend, and the bend of the horizontal bar a9 and the horizontal bar B13 obtains an M-shaped arc-shaped bulge of the middle portion of the elastic bar towards the upper palate of the oral cavity.
With reference to fig. 1 or 4, the rubber sheet a4 and the rubber sheet B18 have the same structure, that is, the upper and lower inner side surfaces of the rubber sheet a4 are respectively provided with a protrusion sleeve a2 and a protrusion sleeve B7, the protrusion sleeve a2 is provided with a through hole a23, and the protrusion sleeve B7 is provided with a through hole B24; the medial surface of sheet rubber B18 is equipped with protruding cover B20 and protruding cover C15 respectively from top to bottom, is equipped with perforation B24 on protruding cover B20 and the protruding cover C15 respectively, sheet rubber A4 and sheet rubber B18 are oval-shaped structure, are namely equipped with the excessive A22 of circular arc respectively between sheet rubber A4's both sides and the upper end, are equipped with the excessive B25 of circular arc respectively between sheet rubber A4's both sides and the lower extreme.
With reference to fig. 1, 2, 3 or 5, the dental pad blocks 28 respectively disposed at the outer ends of the horizontal rod a9 and the horizontal rod B13 have the same structure, through holes 26 are disposed in the middle of the two side walls of the dental pad block 28 on the horizontal rod a9, protrusions A8 are respectively disposed on the two sides of the upper surface of the dental pad block 28, a groove a6 is formed between the two protrusions A8, another two protrusions A8 are respectively disposed on the two sides of the lower surface of the dental pad block 28, and a lower groove a6 is formed between the another two protrusions A8; the middle parts of two side walls of the other dental pad block 28 on the horizontal rod B13 are provided with through holes, two sides of the upper surface of the other dental pad block 28 are respectively provided with a protrusion B14, a groove B16 is formed between the two protrusions B14, two sides of the lower surface of the dental pad block 28 are respectively provided with the other two protrusions, a lower groove is formed between the other two protrusions, and the height of the inner surface 27 of the dental pad block 28 is two thirds of the height of the outer surface.
Further, the tooth cushion block 28 is made of food-grade silica gel; the rubber sheet A4 and the rubber sheet B18 are made of food-grade silica gel.
The invention relates to a supporting device for dental incisor examination and treatment, which is combined with the accompanying drawings 1 to 6, and the assembling process is as follows:
after being sleeved on the upper ends of an outer support rod A3 and an outer support rod B19, through holes 26 of two tooth cushion blocks 28 are pulled down to the positions, close to the outer ends, of a horizontal rod A9 and a horizontal rod B13, then a protruding sleeve B7 through hole B24 on the inner face of a rubber sheet A4 is sleeved on the outer support rod A3 and pulled down, and when the protruding sleeve A2 reaches the upper end of the outer support rod A3, a through hole A23 of the protruding sleeve A2 is sleeved on the outer support rod A3 and pulled down; then, mounting a convex sleeve C15 and a convex sleeve D20 on the inner surface of the rubber sheet B18 on an outer support rod B19 for standby according to the method of the rubber sheet A4;
when the mouth-opening rubber cushion is used, the thumb and the forefinger are used for pressing the outer sides of the outer vertical rod A5 and the outer vertical rod B17 respectively, the rubber sheet A4 and the rubber sheet B18 contract inwards, the upper lip 29 and the upper jaw face upwards after a patient opens, the lower lip 36 and the lower jaw face downwards, the tongue 32 is tightly attached to the lower portion of the mouth to form the structure shown in the drawing 6, then the mouth-opening rubber cushion is fed into the mouth, when the two tooth cushion blocks 28 reach the positions of the upper molar 31 and the lower molar 33 in the mouth, the outer vertical rod A5 and the outer vertical rod B17 are slowly loosened, the rubber sheet A4 is subjected to the outer elasticity of the outer supporting rod A3 and the rubber sheet B18 is respectively supported on the cheek upper side of the outer side of the teeth by the outer supporting rod B19, the upper molar 31 and the lower molar 33 on the two sides of the upper and the lower jaw respectively bite the grooves of the two tooth cushion blocks 28, and a doctor can inspect or treat the upper incisors 30, the canine teeth 34 or the lower teeth 35.
The present invention is not described in detail in the prior art.
Claims (7)
1. The utility model provides a strutting arrangement is used in inspection treatment of dentistry incisor, includes elastic rod, tooth cushion (28) and sheet rubber, characterized by: the middle part of the elastic rod is arranged to be of an M-shaped structure, a horizontal rod A (9) and a horizontal rod B (13) are respectively arranged outside two end heads of the elastic rod of the M-shaped structure, tooth cushion blocks (28) are respectively arranged at the outer ends, close to the horizontal rod A (9) and the horizontal rod B (13), of the horizontal rod A (9) and the horizontal rod B (13), the outer ends of the horizontal rod A (9) and the horizontal rod B (13) are respectively connected with the lower ends of an outer supporting rod A (3) and an outer supporting rod B (19), a rubber sheet A (4) is arranged outside the outer supporting rod A (3), and a rubber sheet B (18) is arranged outside the outer supporting rod B (19);
the outer end of a horizontal rod A (9) of the elastic rod is connected with the lower end of an outer supporting rod A (3), the inner end of the horizontal rod A (9) is connected with the lower end of an outer vertical rod A (5), the upper end of the outer vertical rod A (5) is connected with the upper end of an inner vertical rod A (10) through an arc bending A (1), the lower end of the inner vertical rod A (10) is connected with one end of a middle horizontal rod (11), the other end of the middle horizontal rod (11) is connected with the lower end of an inner vertical rod B (12), the upper end of the inner vertical rod B (12) is connected with the upper end of an outer vertical rod B (17) through an arc bending B (21), the lower end of the outer vertical rod B (17) is connected with the inner end of a horizontal rod B (13), and the outer end of the horizontal rod B (13) is connected with the lower end of an outer supporting rod B (19);
the middle parts of the outer supporting rod A (3) and the outer supporting rod B (19) are respectively outwards arched and convex.
2. The supporting device for dental incisor examination and treatment according to claim 1, wherein: the rubber sheet A (4) and the rubber sheet B (18) are of the same structure, the inner side face of the rubber sheet A (4) is provided with a protruding sleeve A (2) and a protruding sleeve B (7) from top to bottom respectively, the protruding sleeve A (2) is provided with a through hole A (23), and the protruding sleeve B (7) is provided with a through hole B (24).
3. The supporting device for dental incisor examination and treatment according to claim 2, wherein: the rubber sheet A (4) and the rubber sheet B (18) are of oval structures, namely arc transition A (22) are arranged between the two sides and the upper end of the rubber sheet A (4) respectively, and arc transition B (25) are arranged between the two sides and the lower end of the rubber sheet A (4) respectively.
4. The supporting device for dental incisor examination and treatment according to claim 1 or 2, wherein: the rubber sheet A (4) and the rubber sheet B (18) are made of food-grade silica gel.
5. The supporting device for dental incisor examination and treatment according to claim 1, wherein: the tooth cushion blocks (28) arranged at the outer ends of the horizontal rods A (9) and the horizontal rods B (13) are of the same structure, through holes (26) which are communicated are formed in the middles of the two side walls of the tooth cushion blocks (28), protrusions A (8) are arranged on the two sides of the upper portion face of each tooth cushion block (28), a groove A (6) is formed between the two protrusions A (8), another two protrusions A (8) are arranged on the two sides of the lower portion face of each tooth cushion block (28), and a lower groove A (6) is formed between the other two protrusions A (8).
6. The dental incisor examination and treatment support device according to claim 5, wherein: the height of the inner face (27) of the tooth pad (28) is two thirds of the height of the outer face.
7. The supporting device for dental incisor examination and treatment according to claim 1 or 5, wherein: the tooth cushion block (28) is made of food-grade silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165596.3A CN109770838B (en) | 2019-03-06 | 2019-03-06 | Supporting device for dental incisor examination and treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165596.3A CN109770838B (en) | 2019-03-06 | 2019-03-06 | Supporting device for dental incisor examination and treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109770838A CN109770838A (en) | 2019-05-21 |
| CN109770838B true CN109770838B (en) | 2022-03-04 |
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ID=66487328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910165596.3A Expired - Fee Related CN109770838B (en) | 2019-03-06 | 2019-03-06 | Supporting device for dental incisor examination and treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109770838B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112754714A (en) * | 2021-01-16 | 2021-05-07 | 区树坚 | Oral cavity expander for assisting tooth cleaning and self-checking of cleaning conditions of deep teeth |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916880A (en) * | 1974-06-14 | 1975-11-04 | Wolfgang Schroer | Device for holding open the mouth |
| CN2164790Y (en) * | 1992-12-26 | 1994-05-18 | 李承圜 | Mouth opener |
| CN206896323U (en) * | 2016-10-09 | 2018-01-19 | 廊坊新超医疗器械有限公司 | A kind of opener |
| CN107713973A (en) * | 2017-11-22 | 2018-02-23 | 郭英娜 | A kind of special mouth mirror of oral restoration |
| CN108888305A (en) * | 2013-03-15 | 2018-11-27 | 厄耳他拉登脱产品股份有限公司 | Cheek pull device and method |
-
2019
- 2019-03-06 CN CN201910165596.3A patent/CN109770838B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916880A (en) * | 1974-06-14 | 1975-11-04 | Wolfgang Schroer | Device for holding open the mouth |
| CN2164790Y (en) * | 1992-12-26 | 1994-05-18 | 李承圜 | Mouth opener |
| CN108888305A (en) * | 2013-03-15 | 2018-11-27 | 厄耳他拉登脱产品股份有限公司 | Cheek pull device and method |
| CN206896323U (en) * | 2016-10-09 | 2018-01-19 | 廊坊新超医疗器械有限公司 | A kind of opener |
| CN107713973A (en) * | 2017-11-22 | 2018-02-23 | 郭英娜 | A kind of special mouth mirror of oral restoration |
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| CN109770838A (en) | 2019-05-21 |
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Inventor after: Cao Ting Inventor after: Ren Rui Inventor after: Zheng Binbin Inventor before: Zheng Binbin |
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Effective date of registration: 20220216 Address after: 272000 Jining stomatological hospital, No. 64, gongqingtuan Road, Rencheng District, Jining City, Shandong Province Applicant after: Cao Ting Address before: 315456 No. 110, Zhangfang, moushan village, moushan Town, Yuyao City, Ningbo City, Zhejiang Province Applicant before: Zheng Binbin |
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