CN204581557U

CN204581557U - Mouth cavity planting body

Info

Publication number: CN204581557U
Application number: CN201420849768.1U
Authority: CN
Inventors: 姜笃兵; 黄远亮
Original assignee: SHANGHAI NEW CENTURY DENTAL MATERIAL Co Ltd
Current assignee: SHANGHAI NEW CENTURY DENTAL MATERIAL Co Ltd
Priority date: 2014-12-29
Filing date: 2014-12-29
Publication date: 2015-08-26
Anticipated expiration: 2024-12-29

Abstract

A kind of mouth cavity planting body used for oral cavity Anodontia repair.Be screwed into process for existing implantation body in plantation to be not in good state to synosteosis face squeezing action, the osseous tissue of extruding flows to unreasonable, and the stress surface of formation is not very perfect problem.Devising small end end face is plane, the angle (α) of its back to back arc camber line string and implantation body's axis is less than the acute angle of 45 degree, screw thread in implantation body is not equal angular T-shaped screw thread, the angle (β) of its little side is less than the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread (7,8) is tooth bottom width degree (1) simultaneously that shoals gradually from small end to large end widens so a kind of implantation body gradually.Reach plantation be screwed into process to synosteosis face extruding more rational, plantation after steadiness better, for having good self tapping during lower jaw, when the plantation for palate, the upper jaw draws castering action, also well can complete the effect of plantation when Bone mineral change simultaneously.

Description

Mouth cavity planting body

Technical field:

This utility model belongs to the mouth cavity planting body that in medical apparatus and instruments classification, oral cavity Anodontia repair uses.

Background technology:

Mouth cavity planting body has been applied to human body nearly 20 years, summary profile along with Clinical Experience progressively develops into cylindricality and root shape two class, cylindricality profile up and down equally thick, I am semi-circular in end, generally be applied to the occasion that alveolus position is wider, Gen Xing implantation body upper end is large, lower end is little, profile is coniform, is generally applied to the occasion that alveolus position is narrower.Most surfaces has screw-like, thread surface is based on triangle thread, there is the not enough problem in synosteosis face, some thread surfaces are trapezoidal shape, but the equidistant trapezoidal thread of isosceles is screwed into process in plantation and is not in good state to synosteosis face squeezing action, the osseous tissue of extruding flows to unreasonable, and the stress surface of formation is not very perfect.Some Species implant has cutting edge, in suitable implant axis line parallel direction.

Summary of the invention:

The purpose of this utility model provides a class imp lants thread grooved to be more suitable for being screwed into palatine bone exactly on existing implantation body basis, be screwed into process in plantation and more rational, the rear better implantation body of steadiness of plantation is extruded to synosteosis face, for having good self tapping during lower jaw, when the plantation for palate, the upper jaw draws castering action, also well can complete so a kind of implantation body of plantation when Bone mineral change simultaneously.

This utility model reaches above object by following measure, implantation body's profile has column section (2) and taper section (3), arc (4) forms, on have screw thread (7, 8), the conical surface is had in the large end of implantation body (1) is porose, interior hexagonal and internal thread hole, very low power (9) is had outside large end (1) place, there is cutting edge (6) in shape, implantation body's small end end face (5) is plane, the angle (α) of its back to back arc (4) camber line string and implantation body's axis is less than the acute angle of 45 degree, screw thread (7 in implantation body, 8) be not equal angular T-shaped screw thread, the angle (β) of its little side is less than the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread (7, 8) be that tooth bottom width degree (1) simultaneously that shoals gradually is widened gradually from small end to large end.The radius of implantation body's small end end face (5) plane is greater than 1/8 of implantation body's column section (2) radius or is less than 1/2 of implantation body's column section (2) radius.The angle (β) of the little side of T-shaped screw thread is 5 ~ 15 degree, and the angle (γ) of large side is 25 ~ 35 degree, and exact value is the angle (β) of little side is 10 degree, and the angle (γ) of large side is 30 degree.Arc (4) is 1 or 2 section of circular arc composition.

Mouth cavity planting body of the present utility model, it is steady that large newel post shape section or inverted cone segment remain former cylindricality implantation body upper end, the advantage of good seal, in stage casing to small end design not angularly, the T-shaped screw thread of width and change in depth ensure that implantation body is screwed into process and extrudes more rational to synosteosis face more, after implantation body, steadiness strengthens, the ability that implantation body's process tackles various complex strengthens, embodiment during embodiment and the Bone mineral change of different small end shape is adopted for the sclerotin that human body palate is different with lower jaw, the probability of planting when guaranteeing the reasonability of planting in different sclerotin situation and Bone mineral change.

Accompanying drawing illustrates:

Fig. 1 is the front view of the first embodiment of this utility model implantation body;

Fig. 2 is the sectional view of the first embodiment of this utility model implantation body;

Fig. 3 is the axonometric drawing of the first embodiment of this utility model implantation body;

Fig. 4 is the front view of this utility model implantation body the second embodiment;

Fig. 5 is the sectional view of this utility model implantation body the second embodiment;

Fig. 6 is the axonometric drawing of this utility model implantation body the second embodiment;

Fig. 7 is the sectional view of the third embodiment of this utility model implantation body;

Fig. 8 is the front view of the third embodiment of this utility model implantation body;

Fig. 9 is the axonometric drawing of the third embodiment of this utility model implantation body.

Detailed description of the invention:

The first embodiment of this utility model implantation body provided by Fig. 1 to Fig. 3, this enforcement is characterized as from holding greatly the surface topography be made up of column section, taper section, arc to small end, the angle (β) with little side is less than the T-shaped screw thread of the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread is tooth bottom width degree (1) simultaneously that shoals gradually from small end to large end widens gradually.Small end is plane but less, and arc is immediately less than the acute angle of 45 degree, defines the shape that small end is comparatively sharp-pointed, have certain self tapping in planting process.This embodiment compares the plantation being applicable to lower jaw, because human oral cavity lower jaw sclerotin is harder, the small end of band self tapping can reach good planting effect.

This utility model implantation body the second embodiment provided by Fig. 4 to Fig. 6, this enforcement is characterized as from holding greatly the surface topography be also made up of column section, taper section, arc to small end, the angle (β) with little side is less than the T-shaped screw thread of the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread is tooth bottom width degree (1) simultaneously that shoals gradually from small end to large end widens gradually.But small end is that plane is larger.This embodiment implantation body compares the plantation being applicable to palate, because human oral cavity maxillary is soft bone, comparatively loose, adopts this embodiment implantation body to draw castering action to the upper jaw, can produce good planting effect.

The third embodiment of this utility model implantation body provided by Fig. 7 to Fig. 9, its surface configuration is from holding greatly the surface topography be made up of inverted cone segment, column section, arc to small end, the angle (β) equally with little side is less than the T-shaped screw thread of the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread is tooth bottom width degree (1) simultaneously that shoals gradually from small end to large end widens gradually, small end is that plane is larger.This embodiment diameter is comparatively large, and length is less, and such implantation body is relatively applicable to being applied to the less patient of bone amount, largely remove or reduces the process of bone grafting after adopting this implantation body.

Claims

1. the mouth cavity planting body for human mouth missing tooth, implantation body's profile has column section (2) and taper section (3), arc (4) forms, on have screw thread (7, 8), the conical surface is had in the large end of implantation body (1) is porose, interior hexagonal and internal thread hole, very low power (9) is had outside large end (1) place, there is cutting edge (6) in shape, it is characterized in that implantation body's small end end face (5) is plane, the angle (α) of its back to back arc (4) camber line string and implantation body's axis is less than the acute angle of 45 degree, screw thread (7 in implantation body, 8) be not equal angular T-shaped screw thread, the angle (β) of its little side is less than the angle (γ) of large side, this Bottom of Thread width (1) is greater than cusp width (m), and this screw thread (7, 8) be that tooth bottom width degree (1) simultaneously that shoals gradually is widened gradually from small end to large end.

2. mouth cavity planting body according to claim 1, is characterized in that the radius of implantation body's small end end face (5) plane is greater than 1/8 of implantation body's column section (2) radius or is less than 1/2 of implantation body's column section (2) radius.

3. mouth cavity planting body according to claim 1, it is characterized in that the angle (β) of the little side of T-shaped screw thread is 5 ~ 15 degree, the angle (γ) of large side is 25 ~ 35 degree.

4. the mouth cavity planting body according to claim 1 or 3, it is characterized in that the angle (β) of the little side of T-shaped screw thread is 10 degree, the angle (γ) of large side is 30 degree.

5. mouth cavity planting body according to claim 1, is characterized in that arc (4) is 1 or 2 section of circular arc composition.