CN203647510U

CN203647510U - Multiple-piece type tooth implantation component

Info

Publication number: CN203647510U
Application number: CN201320880508.6U
Authority: CN
Inventors: 叶雷
Original assignee: Chongqing Runze Pharmaceutical Co Ltd
Current assignee: Chongqing Runze Pharmaceutical Co Ltd
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2014-06-18
Anticipated expiration: 2023-12-30

Abstract

The utility model relates to a multiple-piece type tooth implantation component which comprises a tooth implantation body, a fixing base, a fixing sleeve and an extension spring, wherein the tooth implantation body is a porous tantalum piece of which the porosity is 60-70 percent; a through hole penetrating up and down is formed inside the tooth implantation body; general screw threads are arranged on the internal surface of the tooth implantation body on the middle upper part of the through hole; the extension spring is arranged inside tooth implantation body on the lower part of the through hole; a groove communicated with the through hole is further formed in the top of the tooth implantation body; a fixing sleeve is correspondingly mounted inside the groove; a through hole penetrating up and down is further formed inside the fixing sleeve; the lower part of the fixing base is provided with a threaded rod; the threaded rod is matched with the general screw threads on the internal surface of the tooth implantation body after penetrating through the through hole inside the fixing sleeve; the lower end part of the threaded rod and one end of the extension spring are connected; guide grooves communicated with the through holes are horizontally distributed in the end face of the bottom of the tooth implantation body. The multiple-piece type tooth implantation component can be used for well avoiding the interference of alternating force, and is high in strength and good in biocompatibility.

Description

A kind of multi-piece type is planted implant component

Technical field

This utility model relates to Medical oral cavity manual tooth planting's medical apparatus and instruments, relates in particular to a kind of multi-piece type and plants implant component.

Background technology

Oral cavity implanting tooth is to repair at present a mouthful best method for inner teeth gear disappearance.Dental implant surgical of the prior art, normally plants tooth body by one and directly imbeds in advance dental bed, after above planting tooth body, install a retained abutment separation and that expose to dental bed surface, a corona is finally installed in this retained abutment again again, to realize the implantation of artificial tooth.

But, plant tooth body and in use can be subject to for a long time the effect of alternating force, particularly work as Dental Implant when mounted, if move past manyly to words lateral deviation, easily occur in a short time looseningly, and to plant the design of tooth body structure unreasonable due to existing, cause this becoming flexible can not again tighten at present, can only again plant, thereby can increase the operations such as plantation again, cause significant wastage.On structure arranges, also there is certain defect in the existing implant component of planting, cause Dental Implant can not plant the most advanced and sophisticated sclerotin weakness that waits of tooth body after implantation, add again that other plant the material of tooth steadiness to increase as bone grafting material, biotic factor etc., and the materials such as the broken end of the flesh and blood that may exist in its structure are also difficult for discharging, poor fluidity between material.Simultaneously, existing planting in dental structure, its retained abutment usually adopts single being threaded with planting between tooth body, and after adopting this structure to connect, the support force that its retained abutment that exposes to dental bed surface is subject to is in the horizontal direction lower, easily suffer the effect of horizontal lateral force and rupture, its reliability is lower.In addition, in existing design implant dental structure also exist mechanical property and biocompatibility poor, after long-time use, there will be repulsion with tissue, and affect the problems such as its service life.

Utility model content

The purpose of this utility model is to provide a kind of multi-piece type to plant implant component, this multi-piece type is planted implant component and can be closely connected with alveolar bone planting tooth body in real time, can also avoid preferably it to be subject to the interference of alternating force, also being convenient to material imports or discharges, have simple in structure, intensity is higher, has the characteristics such as good biocompatibility concurrently.

The purpose of this utility model is achieved in that

A kind of multi-piece type is planted implant component, it is characterized in that: it forms by planting tooth body, retained abutment, maintenance sleeve and extension spring; The described tooth body of planting adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body inside and is provided with the through hole running through up and down; The inner surface of tooth body of planting of this through hole middle and upper part is provided with regular screw threads, and the tooth body inside of planting of this through hole bottom is provided with extension spring; Described top of planting tooth body is also provided with the groove being communicated with described through hole, and in this groove, Corresponding matching is installed described maintenance sleeve; Described maintenance sleeve inner has a perforation running through up and down; Described retained abutment bottom is threaded rod, this threaded rod through the perforation in described maintenance sleeve after, plant the regular screw threads that the inner surface of tooth body arranges and coordinate with described, and the bottom of this threaded rod and one end of described extension spring are connected; Described bottom end face of planting tooth body also horizontal distribution has the guiding gutter being communicated with described through hole.

The porous tantalum product of above-mentioned porosity, can meet this and plant tooth body and plant the mechanical property requirements in implant component at this multi-piece type, is closely connected reliably with alveolar bone to realize it.This porous tantalum product can adopt the preparations such as foam dipping method, die pressing.Through the discovery that studies for a long period of time: adopt the tooth physical ability of planting of porous tantalum product that bone is grown into and the structure of growing in forming, thereby organically combine as a whole with body bone tissue, in greatly having improved biocompatibility, also well meet its mechanical property, improve service life and implanted comfort level, having increased stability and anti-verticity after artificial prosthesis is implanted.

Further, the above-mentioned tooth body of planting is the cylinder being made up of cervical region, middle part and afterbody.

Further, above-mentionedly plant the cervical region of tooth body and the diameter at middle part is consistent, and the outer surface at middle part is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody is narrow compared with cervical region or middle part.The tooth body of planting of this structure setting has been realized with alveolar bone and being firmly connected, and has the effects such as the sinking of further preventing.

The top of above-mentioned retained abutment is Rotary-table, and one-body molded with the threaded rod of above-mentioned retained abutment bottom.The Rotary-table on its top is fixed on after maintenance sleeve, can outside this maintenance sleeve, Corresponding matching be installed by corona, thereby realize the firm implantation of artificial tooth.

Above-mentioned maintenance sleeve is torus, and the diameter of the perforation on its body top is greater than the diameter of its body underpunch.By the setting of this structure, the retained abutment top that can be further Rotary-table by its structure is fixedly limited in this maintenance sleeve, thereby has ensured the reliability of the two connection.

Above-mentioned guiding gutter can be set to multiple.Setting up guiding gutter can realize other materials of planting tooth steadiness to increase such as bone grafting material, biotic factor are introduced, are evenly distributed on sclerotin weakness such as planting tooth body bottom, and the stability that increase is connected with sclerotin, and can greatly improve the mobility of the materials such as the broken end of flesh and blood, make it and be set to porous tantalum product to plant tooth body better compatible.

The utlity model has following beneficial effect:

1, plant tooth body and adopt regular screw threads to be connected with retained abutment, easily produce self-locking, good stress performance;

2, adopt the bottom that extension spring one end is fixed on to alveolar bone to continue that retained abutment is applied to elastic force, be fixed in the through hole of planting tooth body inside, ensured retained abutment all the time with plant tooth body close contact, itself apply the effect of power simultaneously by retained abutment to planting tooth body, make to plant the bottom close contact all the time of tooth body and alveolar bone; In use, if because external force makes to plant tooth body or retained abutment is loosening, extension spring makes it again keep close contact by elastic force, and then has ensured fixed effect;

3, plant tooth body itself and adopt porous tantalum product, well meet its mechanical property, also greatly increase the biocompatibility that this plants implant component simultaneously, improved service life and implanted comfort level, increased stability and anti-verticity after this artificial prosthesis is implanted;

4, by groove being set at the top of planting tooth body, and Corresponding matching is installed maintenance sleeve in this groove, afterwards by the threaded rod of retained abutment bottom through after this maintenance sleeve again with plant tooth body and be connected, thereby strengthen the retained abutment support force being subject in the horizontal direction, suffered the effect of horizontal lateral force and the probability that ruptures and greatly reduce it;

The guiding gutter of the horizontal distribution 5, being communicated with through hole by increase at the bottom end face of planting tooth body, realize sclerotin weakness such as planting tooth body bottom has been introduced, has been evenly distributed on to other materials of planting tooth steadiness to increase such as bone grafting material, biotic factor, and the stability that increase is connected with sclerotin, and can greatly improve the mobility of the materials such as the broken end of flesh and blood, make it and be set to porous tantalum product to plant tooth body better compatible.

Brief description of the drawings

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram that multi-piece type described in this utility model embodiment 1 is planted implant component.

Fig. 2 is the structural representation that described in Fig. 1, multi-piece type is planted implant component integrated connection.

Detailed description of the invention

Be below this utility model preferred embodiment, and be not intended to limit protection domain of the present utility model.

Embodiment 1

As shown in Fig. 1～2: a kind of multi-piece type is planted implant component, it forms by planting tooth body 1, retained abutment 2, maintenance sleeve 9 and extension spring 4; It is planted tooth body 1 and adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body 1 inside and is provided with the through hole 3 running through up and down; The inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts is provided with regular screw threads, and tooth body 1 inside of planting of these through hole 3 bottoms is provided with extension spring 4; The top of planting tooth body 1 is also provided with the groove 11 being communicated with through hole 3, and the interior Corresponding matching of this groove 11 is installed maintenance sleeve 9; These maintenance sleeve 9 inside have a perforation running through up and down 10, and this maintenance sleeve 9 is torus shape, and the diameter of the perforation 10 on its body top is greater than the diameter of its body underpunch 10; Its retained abutment 2 bottoms are threaded rod 5, after the perforation 10 that this threaded rod 5 passes in maintenance sleeve 9, coordinate, and the bottom of this threaded rod 5 are connected with one end of extension spring 4 with the regular screw threads of planting tooth body 1 inner surface setting; It plants the cylinder of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8; The cervical region 6 of planting tooth body 1 is consistent with the diameter at middle part 7, and the outer surface at middle part 7 is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody 8 is narrow compared with cervical region 6 or middle part 7, and the bottom end face of planting tooth body 1 also horizontal distribution have a guiding gutter 12 being communicated with through hole 3; The top of retained abutment 2 is Rotary-table, and adopts medical titanium alloy through one-body molded with the threaded rod 5 of its underpart; After the maintenance sleeve 9 of the torus shape that the outside of retained abutment 2 connects, then in these maintenance sleeve 9 outside Corresponding matchings, coronas are installed, so the implantation that has realized artificial tooth be firmly connected.

In clinical practice, extension spring 4 one end are fixed on to the bottom of alveolar bone, the other end is fixed on the bottom of threaded rod 5 of retained abutment 2 bottoms to continue that retained abutment 2 is applied to elastic force, be fixed in the through hole 3 of planting tooth body 1 inside, ensured retained abutment 2 all the time with plant tooth body 1 close contact, itself apply the effect of power simultaneously by retained abutment 2 to planting tooth body 1, make to plant the bottom close contact all the time of tooth body 1 and alveolar bone; If, because external force makes to plant tooth body 1 or retained abutment 2 is loosening, extension spring 4 makes it again keep close contact by elastic force, and then has ensured fixed effect when use.At the bottom end face of planting tooth body 1 by increasing the guiding gutter 12 of a horizontal distribution being communicated with through hole 3, realize sclerotin weakness such as planting tooth body 1 bottom has been introduced, has been evenly distributed on to other materials of planting tooth steadiness to increase such as bone grafting material, biotic factor, and the stability that increase is connected with sclerotin, and can greatly improve the mobility of the materials such as the broken end of flesh and blood, make it and be set to porous tantalum product to plant tooth body 1 better compatible.

Claims

1. multi-piece type is planted an implant component, it is characterized in that: it forms by planting tooth body (1), retained abutment (2), maintenance sleeve (9) and extension spring (4); The described tooth body (1) of planting adopts porous tantalum product, and its porosity is 60% ~ 70%; This is planted tooth body (1) inside and is provided with the through hole (3) running through up and down; The inner surface of tooth body (1) of planting of this through hole (3) middle and upper part is provided with regular screw threads, and tooth body (1) inside of planting of this through hole (3) bottom is provided with extension spring (4); Described top of planting tooth body (1) is also provided with the groove (11) being communicated with described through hole (3), and the interior Corresponding matching of this groove (11) is installed described maintenance sleeve (9); Described maintenance sleeve (9) inside has a perforation running through up and down (10); Described retained abutment (2) bottom is threaded rod (5), this threaded rod (5) passes after the perforation (10) in described maintenance sleeve (9), coordinate with described regular screw threads of planting tooth body (1) inner surface setting, and the bottom of this threaded rod (5) is connected with one end of described extension spring (4); Described bottom end face of planting tooth body (1) also horizontal distribution has the guiding gutter (12) being communicated with described through hole (3).

2. multi-piece type is planted implant component according to claim 1, it is characterized in that: described in plant tooth body (1) for the cylinder that formed by cervical region (6), middle part (7) and afterbody (8).

3. multi-piece type is planted implant component according to claim 2, it is characterized in that: described in to plant the cervical region (6) of tooth body (1) consistent with the diameter of middle part (7), and the outer surface of middle part (7) is that tooth form angle is the regular screw threads of 60 °; The diameter of its afterbody (8) is narrow compared with cervical region (6) or middle part (7).

4. plant implant component according to the arbitrary described multi-piece type of claim 1-3, it is characterized in that: the top of described retained abutment (2) is Rotary-table, and one-body molded with the threaded rod (5) of described retained abutment (2) bottom.

5. plant implant component according to the arbitrary described multi-piece type of claim 1-3, it is characterized in that: described maintenance sleeve (9) is torus, and the diameter of the perforation on its body top (10) is greater than the diameter of its body underpunch (10); Described guiding gutter (12) is set to multiple.

6. multi-piece type is planted implant component according to claim 4, it is characterized in that: described maintenance sleeve (9) is torus, and the diameter of the perforation on its body top (10) is greater than the diameter of its body underpunch (10); Described guiding gutter (12) is set to multiple.