CN203647513U - Multi-part artificial tooth implanting member - Google Patents

Abstract

The utility model relates to a multi-part artificial tooth implanting member which consists of a tooth implant, a retention base, a retention sleeve and an extension spring, wherein the tooth implant is a porous tantalum piece with the porosity of 60-70%. A through hole which is threaded through up and down is arranged inside the tooth implant. A pipe thread with a thread angle of 55 degrees is arranged on the inner surface of the tooth implant on the middle and upper part of the through hole, and the extension spring is arranged inside the tooth implant on the lower part of the through hole. A groove communicated with the through hole is formed at the top of the tooth implant, and the retention sleeve is installed corresponding to the groove. A via hole is threaded through up and down inside the retention sleeve. A screw rod is arranged on the lower part of the retention base and penetrates through the through hole in the retention sleeve to be correspondingly matched with the pipe thread with the thread angle of 55 degrees arranged on the inner surface of the tooth implant. The lower end part of the screw rod is connected with one end of the extension spring. Guide slots communicated with the through hole are horizontally distributed on the bottom end face of the tooth implant. The multi-part artificial tooth implanting member provided by the utility model is prevented from being interfered by an alternating force, so that the member is high in strength and has good biocompatibility.

Description

A kind of multi-piece type implant 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 implant implant component.

Background technology

Canine implant is the best method of repairing at present oral cavity 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 increase the operations such as plantation again, cause significant wastage.And implant implant component of the prior art exists certain defect, it is planted between tooth body and retained abutment and usually adopts regular screw threads to be connected, and its syndeton defective tightness is easy to cause impurity to enter in screw thread, affects being fixedly connected with of the two; 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 to suffer the effect of horizontal lateral force and rupture, its reliability is lower; And simultaneously, Dental Implant can not planted 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 broken end of the flesh and blood that may exist in its structure waits material to be also difficult for discharge, poor fluidity between material.In addition, it is poor that in existing design also usually there is mechanical property and biocompatibility in implant dental structure, there will be repulsion, and affect the problems such as its service life after long-time use with tissue.

Utility model content

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

The purpose of this utility model is achieved in that

A kind of multi-piece type implant implant component, 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; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body of planting of this through hole middle and upper part, 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, with described to plant tooth form angle that the inner surface of tooth body arranges be the gas thread corresponding matching of 55 °, 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 the mechanical property requirements of tooth body in its structure, 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.In addition,, by being the gas thread Corresponding matching of 55 ° by threaded rod and the tooth form angle of planting the inner surface setting of tooth body, its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread.

Further, the above-mentioned tooth body of planting is the clava being made up of cervical region, middle part and afterbody.Further, the outer surface at above-mentioned middle part of planting tooth body is gas thread; The diameter of its afterbody is narrow compared with cervical region and 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 guaranteed 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, planting tooth body and retained abutment, to adopt tooth form angle be the gas thread Corresponding matching of 55 °, and its sealing and good stress performance, easily produce self-locking, avoided impurity to enter in screw thread;

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, guaranteed 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 guaranteed fixed effect;

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

The guiding gutter of the horizontal distribution 4, 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;

5, 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.

Accompanying drawing explanation

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

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

The specific embodiment

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 implant 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; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body 1 of planting of these through hole 3 middle and upper parts, 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, this threaded rod 5 through the perforation 10 in maintenance sleeve 9 after, be the gas thread corresponding matching of 55 ° with planting tooth form angle that the inner surface of tooth body 1 arranges, and the bottom of this threaded rod 5 is connected with one end of extension spring 4; It plants the clava of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8; The outer surface of planting the middle part 7 of tooth body 1 is gas thread; The diameter of its afterbody 8 is narrow compared with cervical region 6 and 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.

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.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, guaranteed 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 guaranteed fixed effect when use.

Claims (6)

1. a multi-piece type implant implant component, 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; To be provided with tooth form angle be the gas thread of 55 ° on the inner surface of tooth body (1) of planting of this through hole (3) middle and upper part, 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), with described to plant tooth form angle that the inner surface of tooth body (1) arranges be the gas thread corresponding matching of 55 °, 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 implant implant component according to claim 1, is characterized in that: described in plant the clava of tooth body (1) for being formed by cervical region (6), middle part (7) and afterbody (8).

3. implant implant component according to claim 2, is characterized in that: described in plant the middle part (7) of tooth body (1) outer surface be gas thread; The diameter of its afterbody (8) is narrow compared with cervical region (6) and middle part (7).

4. according to the arbitrary described multi-piece type implant implant component 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. according to the arbitrary described multi-piece type implant implant component 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 implant implant component according to claim 4, 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.

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