CN2237745Y - Sharped groove column and conical titanium screws - Google Patents
Sharped groove column and conical titanium screws Download PDFInfo
- Publication number
- CN2237745Y CN2237745Y CN 94248061 CN94248061U CN2237745Y CN 2237745 Y CN2237745 Y CN 2237745Y CN 94248061 CN94248061 CN 94248061 CN 94248061 U CN94248061 U CN 94248061U CN 2237745 Y CN2237745 Y CN 2237745Y
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- screw
- titanium screws
- screws
- implanted
- utility
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Abstract
The utility model belongs to a column and conical titanium screws which are used in the implanted bodies of the artificial implanted denture of the oral cavity department. The column and the conical titanium screws are provided respectively with four sharp-edge grooves at the thread-length direction, and two through holes are drilled on the position which keeps definite distance with the end parts of the screws; about 120 countries around the world make the research for the implanted bodies of the artificial implanted denture. At present, the screw implanted bodies are used widely in the countries, such as America, Germany, Sweden, etc. and is one of the projects which ministry of health in China popularizes to the whole country actively. The utility model is helpful for the correction and screwing in the clinical operation and avoids the accidental phenomenon caused by the fact that a force-added-rod spanner is used for screwing arbitrarily, because of incorrect position of the titanium screws. The utility model is easy to assemble and screw, shortens the operation time, enhances the stable positions when the titanium screws are used for conducting the occlusal force, and improves the firmness of the titanium screws on the alveolar bone.
Description
The utility model belongs to the improvement of cylinder, conical titanium screw.The implant that is used for department of stomatology canine implant.
At present, the titanium screw implantation back wound healing after the titanizing is fast, can strengthen the area of contact of implant and bone tissue greatly, is the widest implanies of countries use such as present U.S., moral, Sweden.But owing to inanimate object hole, poor effect in the implant.
The purpose of this utility model is to improve existing titanium screw, increases biological hole in implant, makes tissue fluid obtain passage immediately and discharges.
The technical solution of the utility model is: the screw thread position of conical titanium screw, mill the semicircle sword groove of 1.2mm-1.5mm according to diameter, apart from the hole of screw thread top 3mm-2 diameter 1.2mm-1.5mm of 6mm place sword groove bottom center drill, be biological hole (by dimensioned shown in Figure 1) then; The screw thread position of conical titanium screw, mill the semicircle sword groove of 1mm-1.3mm according to diameter, apart from the hole of 2 diameter 1mm-1.3mm of semicircle sword groove bottom center drill of screw thread top 4.5mm-7.5mm, be biological hole (by dimensioned shown in Figure 2) then.After all finishing, the conical titanium screw gold machining of sword groove cylinder carries out vacuum titanizing (medical science is in spraying titanium slurry).
The utility model be referring to the Germany professor at the anatomical physiology of Chengdu Huaxi Medical Univ teaching clinical operation video tape, oral implantology, bone, the three elements of thread implant design, and long-term investigation clinical operation timeliness.The implant that biological hole has been arranged makes tissue fluid obtain passage immediately and discharges, and obviously is better than inanimate object hole person.From scholar's experimental research, bone tissue has piezoelectricity.Produce current potential under external force, current potential is to have collagen to produce, and be collagenous fibres main the composition in the bone matrix, and collagen produced electrical signal when external force was added on the bone.In the process of the moulding one-tenth of bone, the reflection of current potential pair cell produces specific effect, and negative potential causes that bone forms, and positive potential causes that bone absorbs.The regeneration of bone tissue is mainly by periosteum, and when bone sustained damage, film inner layer cell division hyperplasia was filled in the wound, forms granulation tissue, then calcification and osteogenic tissue.The utility model not only simple interest is twisted in the clinical operation dress, shorten operating time, main is to meet the anatomical physiology of bone and the three elements of thread implant design, it is the wound healing piece after planting, implant and bone tissue area of contact increase and strengthen, the mechanicalness lock is tied, and has strengthened steady position and the soundness of implant on alveolar bone.
The utility model has following advantage than present Germany and homemade cylinder, conical titanium screw: because of there has been the sword groove at the screw thread position, as the screw tap that mechanic uses, clinical operation is easily proofreaied and correct, and easily dress is twisted and shortened operating time.Can not occur twisting not in placely, twist firmly to be difficult for supportting with the extension lever spanner and hold and Bin go occurs because of implant.The utility model has had biological hole, makes tissue fluid obtain passage immediately and discharges, and wound healing is accelerated.Sword groove and biological hole have been arranged, strengthened the area of contact of bone tissue and implant, the mechanical property lock is tied, and strengthens conductive tooth and makes a concerted effort, and the steady position and the soundness of titanium screw implant have more been strengthened.
Be specifically described by most preferred embodiment and accompanying drawing thereof below, its accompanying drawing has four:
Fig. 1 is the front view of cylinder titanium screw.
Fig. 2 is the sectional elevation of titanium screw shown in Figure 1.
Fig. 3 is conical titanium screw front view.
Fig. 4 is a titanium screw sectional elevation shown in Figure 3.
In Fig. 1-2,1 cylindrical titanium screw, 2 screw threads, 3 sword grooves, 4 biological holes or open-work, 5 conical titanium screws, 6 screw threads, 7 sword grooves, 8 biological hole or open-works.
Embodiment:
Shown in Fig. 1-2, screw thread 2 is arranged on titanium screw 1, cut open sword groove 3 equably in the screw length direction, and be drilled with the hole 4 of two diameter 1.2mm at distance threaded end 4-6mm place respectively.
Claims (2)
1, a kind of cylindrical titanium screw, it is characterized in that the equal office of 90 degree at its screw thread position, be milled with the semicircle sword groove of 4 roads, 1.2-1.5mm according to the diameter of titanium screw, and, be biological hole at the open-work of threaded tip apart from 3mm-2 diameter 1.2mm-1.5mm of 6mm place sword groove bottom center drill.
2, a kind of conical titanium screw, it is characterized in that the equal office of 90 degree at the screw thread position, mill the semicircle sword groove of 4 roads, 1-1.3mm according to the diameter of titanium screw, at the open-work of threaded tip, be biological hole then apart from 4.5mm-2 diameter 1mm-1.3mm of 7.5mm place sword groove bottom center drill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94248061 CN2237745Y (en) | 1994-12-27 | 1994-12-27 | Sharped groove column and conical titanium screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94248061 CN2237745Y (en) | 1994-12-27 | 1994-12-27 | Sharped groove column and conical titanium screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2237745Y true CN2237745Y (en) | 1996-10-16 |
Family
ID=33853106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94248061 Expired - Fee Related CN2237745Y (en) | 1994-12-27 | 1994-12-27 | Sharped groove column and conical titanium screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2237745Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575721C (en) * | 2004-11-08 | 2009-12-30 | 希尔蒂股份公司 | The bolt of thread-rolling screw and production method thereof |
-
1994
- 1994-12-27 CN CN 94248061 patent/CN2237745Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100575721C (en) * | 2004-11-08 | 2009-12-30 | 希尔蒂股份公司 | The bolt of thread-rolling screw and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Co-applicant after: Tian Shulin Co-applicant after: Hou Weiming Co-applicant after: Hou Weiyan Co-applicant before: Tian Shulin Co-applicant before: Hou Weiming Co-applicant before: Hou Weiyan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-APPLICANT; FROM: TIAN SHULIN HOU WEIMING; HOU WEIYAN TO: NONE |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |