CN203564351U - Cover screw for dental implant - Google Patents
Cover screw for dental implant Download PDFInfo
- Publication number
- CN203564351U CN203564351U CN201320591106.4U CN201320591106U CN203564351U CN 203564351 U CN203564351 U CN 203564351U CN 201320591106 U CN201320591106 U CN 201320591106U CN 203564351 U CN203564351 U CN 203564351U
- Authority
- CN
- China
- Prior art keywords
- cover screw
- main body
- tooth implant
- sealing
- degree
- 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.)
- Expired - Lifetime
Links
- 239000004053 dental implant Substances 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000007943 implant Substances 0.000 claims description 30
- 238000003754 machining Methods 0.000 claims description 5
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 208000015181 infectious disease Diseases 0.000 abstract description 3
- 241000894006 Bacteria Species 0.000 abstract 1
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 210000004195 gingiva Anatomy 0.000 description 4
- 238000002513 implantation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010018785 Gingival infections Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
Images
Landscapes
- Dental Prosthetics (AREA)
Abstract
The utility model provides a cover screw for a dental implant. The cover screw comprises a cover screw main body, wherein the cover screw main body comprises a sealing part, a connecting part and a rapid positioning guide part, which are sequentially arranged from top to bottom; the central axes of the sealing part, the connecting part and the rapid positioning guide part are overlapped; the sealing part comprises an inverted circular truncated cone; an external thread is arranged on the outer sidewall of the connecting part; the inverted circular truncated cone is connected with the connecting part; a blind hole is perpendicularly formed in the top surface of the cover screw main body. The cover screw can be matched with the inner conical surface of the dental implant in a pressing way by virtue of threaded connection pressure through the precisely-machined conical surface of the inverted circular truncated cone of the sealing part and the external thread on the connecting part to achieve an effect of sealing an inner cavity of the dental implant, effectively prevent the micro-leakage of bacteria and foreign matters, prevent infection and promote the closing of gingivae.
Description
Technical field
This utility model relates to a kind of tooth-planting medical apparatus and instruments, particularly a kind of tooth implant cover screw.
Background technology
In the tooth-implanting operation of modern dentistry, apply maximum tooth implant systems and comprise tooth implant, base station, connection screw three parts.Individual in tooth-implanting operation process, first need in tooth implant patients with implantation alveolar bone, then above tooth implant, according to patient's situation, the corresponding base station of repairing is installed, by connecting screw locking, finally on base station, assemble corona, complete operation.
But these steps complete stage by stage, wherein also need a lot of auxiliary instrument tool, for example, after tooth implant is implanted, need to use cover screw to be arranged on tooth implant, after tooth implant and top gingiva tissue are stablized, carry out again installation that second operation completes base station etc.This wherein requires cover screw close-coupled implantation body, and seals the inner chamber of implantation body, prevents that antibacterial from entering and adhering to, and causes gingival infection.
Utility model content
This utility model object is in order to overcome the deficiencies in the prior art, and a kind of tooth implant cover screw is provided, effective sealing inner chamber, micro-seepage of prevention antibacterial and foreign body.
In order to achieve the above object, this utility model is by the following technical solutions:
A kind of tooth implant cover screw, comprises cover screw main body, and described cover screw main body from top to bottom sets gradually as sealing, connecting portion and orientation direction portion fast, and described sealing, connecting portion and fast the orientation direction three's of portion axis overlap; Described sealing comprises rounding frustum, and described connecting portion lateral wall is provided with external screw thread, and described rounding frustum is connected with connecting portion; Described cover screw main body end face is vertically offered a blind hole.
As preferably, the outer surface of described rounding frustum is the Precision Machining conical surface, and its surface roughness is less than Ra3.2.
As preferably, the conical surface angle of the outer surface of described rounding frustum is 30 degree, or is 45 degree, or is 60 degree, or is 90 degree, or is 120 degree.
As preferably, described blind hole is regular hexagon hole, or is square hole, or is a word hole, or is cross bore.
As preferably, the material of described cover screw main body is medical pure titanium or titanium alloy.
As preferably, described cover screw main body outer surface is coated with wear-resistant friction layer.
Compared with prior art, the utlity model has following beneficial effect:
External screw thread on the Precision Machining conical surface and the connecting portion of the rounding frustum part of sealing, make the inner conical surface of this utility model and tooth implant can pass through the pressure compression fit of thread connection, reach the effect of sealing tooth implant inner chamber, effectively stop micro-seepage of antibacterial and foreign body, protect from infection, promote gingiva closure.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
In figure:
1-sealing; 11-rounding frustum; 2-connecting portion; The 21-the first cylinder; The 22-the second cylinder; 221-external screw thread; 3-orientation direction portion fast; 4-blind hole.
Now the utility model is described in further detail with specific embodiment by reference to the accompanying drawings.
The specific embodiment
As shown in Figure 1, for a kind of tooth implant cover screw described in the utility model, comprise cover screw main body.
Cover screw main body from top to bottom sets gradually as sealing 1, connecting portion 2 and orientation direction portion 3 fast, and sealing 1, connecting portion 2 and fast orientation direction 3 threes' of portion axis overlap.
Sealing 1 comprises rounding frustum 11; Connecting portion 2 from top to bottom comprises that the diameter of the first cylinder 21 and the second cylinder 22, the first cylinders 21 is greater than the diameter of the second cylinder 22, is provided with external screw thread 221 in the lateral wall of the second cylinder 22; Orientation direction portion 3 profiles are cylindrical fast.Rounding frustum 11 is connected with the first cylinder 21 of connecting portion 2, and orientation direction portion 3 is connected with the second cylinder 22 fast; At cover screw main body end face, vertically offer a blind hole 4.
The outer surface of rounding frustum 11 is the Precision Machining conical surface, and its surface roughness is less than Ra3.2; The conical surface angle of the outer surface of rounding frustum 11 is 30 degree, or is 45 degree, or is 60 degree, or is 90 degree, or is 120 degree.
Described cover screw main body adopts medical pure titanium or titanium alloy manufacture, and cover screw main body outer surface is coated with wear-resistant friction layer.
This utility model is used mainly for the tooth implant with the interior connection conical surface and female thread connection.The interior conical surface and the screw-internal thread fit of connecting of the external screw thread on the Precision Machining conical surface and the connecting portion of the rounding frustum part of sealing of the present utility model and tooth implant, reach the effect of sealing tooth implant inner chamber, effectively stop micro-seepage of antibacterial and foreign body, protect from infection, promote gingiva closure.
Part-structure effect
Orientation direction portion fast: quick orientation direction portion's insertion tooth implant inner chamber (being internal thread hole) of cylindrical shape, Primary Location axle center rapidly, guides whole cover screw to screw in along tooth implant axial direction.
The rounding frustum of sealing: conical surface angle is consistent with the inner conical surface angle of tooth implant, can fit tightly after compression, prevents infiltration.
The blind hole at top is as insertion, to get the tooling hole of the instrument of holding.
The application of cover screw when operation:
During operation, after tooth implant is implanted, from vacuum packaging, take out cover screw; By hand-operated tools insertion tool hole, then by hand-operated tools, take out cover screw and cover screw is stretched into tooth implant inner chamber, by quick orientation direction portion, find rapidly the position of implantation body's female thread accurately, by screwing into of connecting portion, until the rounding frustum lateral surface of sealing compresses tooth implant.After completing, gingiva is sewed up, and carries out 2 operations after tooth implant stability increases, and screws out cover screw and is replaced with gingival former, reparation base station attractive in appearance etc.
This utility model is not limited to above-mentioned embodiment, if various changes of the present utility model or modification are not departed to spirit and scope of the present utility model, if within these changes and modification belong to claim of the present utility model and equivalent technologies scope, this utility model is also intended to comprise these changes and variation.
Claims (6)
1. a tooth implant cover screw, comprise cover screw main body, it is characterized in that, described cover screw main body from top to bottom sets gradually as sealing, connecting portion and orientation direction portion fast, and described sealing, connecting portion and fast the orientation direction three's of portion axis overlap; Described sealing comprises rounding frustum, and described connecting portion lateral wall is provided with external screw thread, and described rounding frustum is connected with connecting portion; Described cover screw main body end face is vertically offered a blind hole.
2. tooth implant cover screw according to claim 1, is characterized in that, the outer surface of described rounding frustum is the Precision Machining conical surface, and its surface roughness is less than Ra3.2.
3. tooth implant cover screw according to claim 1 and 2, is characterized in that, the conical surface angle of the outer surface of described rounding frustum is 30 degree, or is 45 degree, or is 60 degree, or is 90 degree, or is 120 degree.
4. tooth implant cover screw according to claim 3, is characterized in that, described blind hole is regular hexagon hole, or is square hole, or is a word hole, or is cross bore.
5. tooth implant cover screw according to claim 1, is characterized in that, the material of described cover screw main body is medical pure titanium or titanium alloy.
6. tooth implant cover screw according to claim 1, is characterized in that, described cover screw main body outer surface is coated with wear-resistant friction layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591106.4U CN203564351U (en) | 2013-09-24 | 2013-09-24 | Cover screw for dental implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320591106.4U CN203564351U (en) | 2013-09-24 | 2013-09-24 | Cover screw for dental implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203564351U true CN203564351U (en) | 2014-04-30 |
Family
ID=50532121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320591106.4U Expired - Lifetime CN203564351U (en) | 2013-09-24 | 2013-09-24 | Cover screw for dental implant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203564351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184536A1 (en) * | 2018-03-26 | 2019-10-03 | 林振义 | Screw structure |
-
2013
- 2013-09-24 CN CN201320591106.4U patent/CN203564351U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184536A1 (en) * | 2018-03-26 | 2019-10-03 | 林振义 | Screw structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHEN XIANSHUAI Free format text: FORMER OWNER: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES Effective date: 20150112 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150112 Address after: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee after: Chen Xianshuai Address before: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee before: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINES Free format text: FORMER OWNER: CHEN XIANSHUAI Effective date: 20150130 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150130 Address after: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee after: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES Address before: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee before: Chen Xianshuai |
|
| ASS | Succession or assignment of patent right |
Owner name: CHEN XIANSHUAI Free format text: FORMER OWNER: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES Effective date: 20150407 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150407 Address after: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee after: Chen Xianshuai Address before: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee before: GUANGZHOU INSTITUTE OF ADVANCED TECHNOLOGY, CHINESE ACADEMY OF SCIENCES |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160119 Address after: 511458, Guangzhou, Guangdong province Nansha District Haibin Road, No. 1121, C building, first floor Patentee after: GUANGZHOU JIANCHI BIOTECHNOLOGY Co.,Ltd. Address before: 511458 Nansha District Haibin Road, Guangdong, China, No. 1121, No. Patentee before: Chen Xianshuai |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 511457 room 101-103, No. 37, Jinlong Road, Nansha street, Nansha District, Guangzhou City, Guangdong Province (can not be used as a workshop) Patentee after: Guangdong Jianchi Biotechnology Co.,Ltd. Address before: 511458 1st floor, building C, 1121 Haibin Road, Nansha District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU JIANCHI BIOTECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |