CN101357080A - Screw thread planting body - Google Patents

Screw thread planting body Download PDF

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Publication number
CN101357080A
CN101357080A CNA2008101197596A CN200810119759A CN101357080A CN 101357080 A CN101357080 A CN 101357080A CN A2008101197596 A CNA2008101197596 A CN A2008101197596A CN 200810119759 A CN200810119759 A CN 200810119759A CN 101357080 A CN101357080 A CN 101357080A
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CN
China
Prior art keywords
screw thread
implant
isosceles trapezoid
thread
externally threaded
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.)
Pending
Application number
CNA2008101197596A
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Chinese (zh)
Inventor
张恩维
魏世成
郑玉峰
方竞
熊晓玲
成艳
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Peking University
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Peking University
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Peking University filed Critical Peking University
Priority to CNA2008101197596A priority Critical patent/CN101357080A/en
Publication of CN101357080A publication Critical patent/CN101357080A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a thread implant which is characterized in that the thread implant comprises a cylindrical implant; the edge of the top of the implant is provided with smooth chamfers; the upper part of the implant is provided with a fine external thread with the thread tooth profile of isosceles trapezoid; the lower part of the implant is provided with an external thread with the thread tooth profile of trapezoid; the thread depth of the trapezoid external thread is gradually shoaled from bottom to top; the bottom of the implant is a spherical surface; the lower part of the trapezoid external thread of the implant is uniformly provided with three vertical cutting trough; the center of the top of the implant is provided with a truncated cone hole below which a regular octagonal hole is arranged; an internal thread blind hole is arranged below the regular octagonal hole. The thread implant is provided with excellent initial stability effect, is beneficial for the long-term stability of the implant, has high implant structure safety coefficient, is beneficial for the combination of gum and implant, can effectively restrict the adsorption of bacilli, and can be widely applied to various restoration process of denture implant due to tooth loss.

Description

A kind of screw thread planting body
Technical field
The present invention relates to a kind of stomatology apparatus, particularly about a kind of screw thread planting body that is used for oral cavity artificial growth artificial tooth.
Background technology
Oral implantology relates to interdisciplinary studies such as medical science, electronics, machinery, material, mechanics, implant denture is a medical skill interdisciplinary, implant denture is widely used in the reparation of dentition defect, Dental Implant can be recovered the function of missing tooth to greatest extent, but implant denture one big shortcoming is that healing time is long.Lot of experiments shows, keeps certain contact pressure can accelerate bone effectively between implantation body and the osseous tissue and integrates, and strengthens the speed of primary stability and osseous tissue healing.Therefore, expect that a kind of process and healing stage at the screw-in alveolar bone remains the appearance that osseous tissue is had the implantation body of certain pressure, thereby improve the success rate of implant denture.
Summary of the invention
At the problems referred to above, it is short to the purpose of this invention is to provide a kind of healing time, the high screw thread planting body of plantation success rate.
For achieving the above object, the present invention takes following technical scheme: a kind of screw thread planting body, it is characterized in that it comprises: a kind of cylindrical implant, described implantation body top is provided with smooth chamfering, it is the trickle external screw thread of isosceles trapezoid that described implantation body top is provided with thread tooth, described implantation body bottom is provided with thread tooth and is isosceles trapezoid external screw thread not, the externally threaded depth of thread of described not isosceles trapezoid shoals from bottom to top gradually, surface spherical in shape, described implantation body bottom, the described implantation body not externally threaded bottom of isosceles trapezoid circumferentially is evenly equipped with three vertical groovings, described implantation body top center is provided with a round platform hole, below, described round platform hole is provided with an octagon hole, and below, described octagon hole is provided with a blind screw hole.
Trickle externally threaded whole outline of described isosceles trapezoid and horizontal line angle are 93 °, and pitch is 0.10~0.20 millimeter.
Externally threaded whole outline of described not isosceles trapezoid and horizontal line angle are 90 °, and pitch is 0.80~1.0 millimeter.
The opening angle of three described groovings is 120 °, and the height of described grooving is 3~5 millimeters.
Described round platform hole bus and horizontal line angle are 70~80 °.
In trickle external screw thread of described isosceles trapezoid and the externally threaded groove of non-isosceles trapezoid is fillet.
The present invention is owing to take above technical scheme, and it has the following advantages: 1, the present invention is because the top thread tooth adopts the trickle external thread structure of isosceles ladder, increased the contact area with osseous tissue, therefore, helps the integration of implantation body and cortical bone.2, the present invention is because the lower thread profile of tooth adopts not isosceles trapezoid external thread structure, and the depth of thread shoals gradually from top to bottom, therefore when implantation body screws in jawbone, the depth of thread that shoals gradually from down to up can produce certain lateral compression power to the surrounding bone tissue, and slightly increase along with the increase of screw-in depth, suitable pressure helps the stability at implantation body's initial stage, and excellent initial stability helps bone and integrates.3, thread groove of the present invention is owing to adopt rounding to handle, and the stress concentration when having reduced implantation body's bearing load has improved the safety coefficient of implantation body's structure.4, the present invention has more motility because the connection of octagon hole is set below the round platform hole, is convenient to the adjusting of base station direction.Sealing function when 5, top tapered round platform of the present invention hole can be played and be combined with base station.6, the present invention can play the effect of self-locking because the bottom is provided with grooving, and it is secular stable to help implantation body, avoids loosening.7, implantation body of the present invention top is provided with the chamfering of 45 ° of smooth surfaces, helps the absorption that gingiva and implantation body's top junction merge and effectively suppress antibacterial.The present invention can be widely used in the various anodontia implant denture repair processes.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is an external screw thread shape sketch map of the present invention
Fig. 3 is the generalized section of Fig. 1 of the present invention
Fig. 4 is the various angle position views of the present invention
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes a kind of cylindrical implant 1, it is made by pure titanium material, the top of implantation body 1 is provided with 45 ° of chamferings 2, the top of implantation body 1 is provided with the trickle external screw thread 3 that thread tooth is an isosceles trapezoid, trickle external screw thread 3 can increase the contact area of implantation body 1 and osseous tissue, is beneficial to and the cortical bone organizational integration.The bottom of implantation body 1 is provided with external screw thread 4, and the profile of tooth of external screw thread 4 is isosceles trapezoid not, and the depth of thread shoals (as shown in Figure 2) from bottom to top gradually, and this exterior contour has side bone squeeze function, helps stress to the osseous tissue internal delivery.The thread groove 5 of external screw thread 4 all becomes fillet, the stress concentration during with minimizing implantation body bearing load.The bottom of implantation body 1 is spherical in shape surperficial 6, and the bottom of external screw thread 4 is provided with three with respect to the equally distributed vertical grooving 7 of centrage, and grooving 7 can make implantation body 1 play the effect of self-locking.Polished surface is adopted at the top of implantation body 1, be provided with a round platform hole 8 (as shown in Figure 3) at the center at top, sealing function when round platform hole 8 can be played and be combined with base station, be provided with octagon hole 9 below round platform hole 8, the center is provided with a standard female blind hole 10 below octagon hole 9.
In the foregoing description, the maximum gauge of implantation body 1 is 3.2~5.0 millimeters, and length is 7~15 millimeters, and trickle external screw thread 3 adopts isosceles trapezoidal structure, whole outline and horizontal line angle theta 1(as shown in Figure 4) can be 93 °, the pitch of trickle external screw thread 3 is 0.10~0.20 millimeter.External screw thread 4 adopts not isosceles trapezoidal structure, and whole outline and horizontal line angle are θ 2Be 90 °, the pitch of external screw thread 4 is 0.80~1.0 millimeter.The spherical surface 6 of bottom adopts the slick and sly shape structure of non-cutting, and to avoid the carrying stage after implantation body repairs successfully, root is to the damage of spongy bone, and slick and sly root structure more helps the stress uniform distribution.As shown in Figure 1, the height of grooving 7 is 3~5 millimeters, and the opening angle of grooving 7 is 120 °.The bus in round platform hole 8 and horizontal line angle theta 3It is 70~80 °.
The equal rounding of all thread grooves of the outside of implantation body 1 is handled in the present embodiment, and the sandblast acid etching coating of prior art is adopted on the surface of implantation body 1.
When implantation body 1 screwed in jawbone, the extruding force of 4 pairs of surrounding bone tissues of external screw thread slightly increased along with the increase of screw-in depth.The thread groove 5 that shoals gradually from down to up also can produce certain extruding force to the surrounding bone tissue, and suitable pressure helps the stability at implantation body's initial stage, and excellent initial stability helps bone and integrates.
The present invention only is illustrated with the foregoing description, and the physical dimension design of its implantation body 1 can change, and all equivalent transformations that carries out according to the principle of the invention all should not got rid of outside protection scope of the present invention.

Claims (10)

1, a kind of screw thread planting body, it is characterized in that it comprises: a kind of cylindrical implant, described implantation body top is provided with smooth chamfering, it is the trickle external screw thread of isosceles trapezoid that described implantation body top is provided with thread tooth, described implantation body bottom is provided with thread tooth and is isosceles trapezoid external screw thread not, the externally threaded depth of thread of described not isosceles trapezoid shoals from bottom to top gradually, surface spherical in shape, described implantation body bottom, the described implantation body not externally threaded bottom of isosceles trapezoid circumferentially is evenly equipped with three vertical groovings, described implantation body top center is provided with a round platform hole, below, described round platform hole is provided with an octagon hole, and below, described octagon hole is provided with a blind screw hole.
2, a kind of screw thread planting body as claimed in claim 1 is characterized in that: trickle externally threaded whole outline of described isosceles trapezoid and horizontal line angle are 93 °, and pitch is 0.10~0.20 millimeter.
3, a kind of screw thread planting body as claimed in claim 1 is characterized in that: externally threaded whole outline of described not isosceles trapezoid and horizontal line angle are 90 °, and pitch is 0.80~1.0 millimeter.
4, a kind of screw thread planting body as claimed in claim 2 is characterized in that: externally threaded whole outline of described not isosceles trapezoid and horizontal line angle are 90 °, and pitch is 0.80~1.0 millimeter.
5, as claim 1 or 2 or 3 or 4 described a kind of screw thread planting bodies, it is characterized in that: the opening angle of three described groovings is 120 °, and the height of described grooving is 3~5 millimeters.
6, as claim 1 or 2 or 3 or 4 described a kind of screw thread planting bodies, it is characterized in that: described round platform hole bus and horizontal line angle are 70~80 °.
7, a kind of screw thread planting body as claimed in claim 5 is characterized in that: described round platform hole bus and horizontal line angle are 70~80 °.
8, as claim 1 or 2 or 3 or 4 described a kind of screw thread planting bodies, it is characterized in that: be fillet in trickle external screw thread of described isosceles trapezoid and the externally threaded groove of non-isosceles trapezoid.
9, a kind of screw thread planting body as claimed in claim 5 is characterized in that: be fillet in trickle external screw thread of described isosceles trapezoid and the externally threaded groove of non-isosceles trapezoid.
10, a kind of screw thread planting body as claimed in claim 6 is characterized in that: be fillet in trickle external screw thread of described isosceles trapezoid and the externally threaded groove of non-isosceles trapezoid.
CNA2008101197596A 2008-09-08 2008-09-08 Screw thread planting body Pending CN101357080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101197596A CN101357080A (en) 2008-09-08 2008-09-08 Screw thread planting body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101197596A CN101357080A (en) 2008-09-08 2008-09-08 Screw thread planting body

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091568A1 (en) * 2009-02-13 2010-08-19 威海威高生物技术有限公司 Cylindrical dental implant device with flange and complex circular arc teeth
WO2012027879A1 (en) * 2010-08-30 2012-03-08 百丹特生医股份有限公司 Dental implant
CN102525671A (en) * 2010-12-29 2012-07-04 北京汇福康医疗技术有限公司 Dental implant
CN102599982A (en) * 2012-04-01 2012-07-25 安敬滨 Oral cavity implant and module thereof
CN101889904B (en) * 2009-05-21 2012-12-12 兴达生技有限公司 Dental implant
CN102824220A (en) * 2012-09-06 2012-12-19 哈尔滨工程大学 Self-expansion type shape memory alloy medicine-carrying implant
CN103476356A (en) * 2011-04-14 2013-12-25 登士伯Ih有限公司 Fixture
CN105283147A (en) * 2013-06-10 2016-01-27 施特劳曼控股股份公司 Dental implant socket arrangement
CN106491226A (en) * 2016-12-23 2017-03-15 大连三生科技发展有限公司 A kind of implant system with straight base station
CN107374761A (en) * 2017-08-14 2017-11-24 武汉大学 A kind of minor diameter combination planting body and the Dental implantion method using its progress
CN108144125A (en) * 2017-12-25 2018-06-12 大连三生科技发展有限公司 A kind of planting body with surface active coating
CN108392280A (en) * 2018-04-20 2018-08-14 烟台毓璜顶医院 A kind of mouth cavity planting body having suitable for initial stage load stimulation
CN108742900A (en) * 2018-06-20 2018-11-06 江苏创英医疗器械有限公司 A kind of anti-bone information planting body
CN109009506A (en) * 2018-06-20 2018-12-18 江苏创英医疗器械有限公司 A kind of taper padlock planting body implant system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010091568A1 (en) * 2009-02-13 2010-08-19 威海威高生物技术有限公司 Cylindrical dental implant device with flange and complex circular arc teeth
CN101889904B (en) * 2009-05-21 2012-12-12 兴达生技有限公司 Dental implant
WO2012027879A1 (en) * 2010-08-30 2012-03-08 百丹特生医股份有限公司 Dental implant
CN102525671B (en) * 2010-12-29 2015-02-25 北京汇福康医疗技术有限公司 Dental implant
CN102525671A (en) * 2010-12-29 2012-07-04 北京汇福康医疗技术有限公司 Dental implant
CN103476356B (en) * 2011-04-14 2015-10-21 登士伯Ih有限公司 Holder
CN103476356A (en) * 2011-04-14 2013-12-25 登士伯Ih有限公司 Fixture
CN102599982A (en) * 2012-04-01 2012-07-25 安敬滨 Oral cavity implant and module thereof
CN102824220A (en) * 2012-09-06 2012-12-19 哈尔滨工程大学 Self-expansion type shape memory alloy medicine-carrying implant
CN105283147A (en) * 2013-06-10 2016-01-27 施特劳曼控股股份公司 Dental implant socket arrangement
CN106491226A (en) * 2016-12-23 2017-03-15 大连三生科技发展有限公司 A kind of implant system with straight base station
CN107374761A (en) * 2017-08-14 2017-11-24 武汉大学 A kind of minor diameter combination planting body and the Dental implantion method using its progress
CN108144125A (en) * 2017-12-25 2018-06-12 大连三生科技发展有限公司 A kind of planting body with surface active coating
CN108392280A (en) * 2018-04-20 2018-08-14 烟台毓璜顶医院 A kind of mouth cavity planting body having suitable for initial stage load stimulation
CN108742900A (en) * 2018-06-20 2018-11-06 江苏创英医疗器械有限公司 A kind of anti-bone information planting body
CN109009506A (en) * 2018-06-20 2018-12-18 江苏创英医疗器械有限公司 A kind of taper padlock planting body implant system
CN108742900B (en) * 2018-06-20 2020-09-18 江苏创英医疗器械有限公司 Bone-absorption-resistant implant

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Open date: 20090204