CN203647508U

CN203647508U - Combined tooth implantation component

Info

Publication number: CN203647508U
Application number: CN201320880435.0U
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 combined tooth implantation component which comprises a tooth implantation body, a fixing base, a fixing sleeve and an extension spring, wherein 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 at the middle upper part of the through hole; the extension spring is arranged inside the tooth implantation body at 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; another 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 the threaded rod penetrates 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; the tooth implantation body is a cylinder composed of a neck part, a middle part and a tail part; the neck part and the tail part are porous tantalum pieces of which the porosity is 60-70 percent; guide grooves communicated with the through hole are horizontally distributed in the end face of the tail of the tooth implantation body. The combined tooth implantation component can be used for avoiding the interference of alternating force in real time, and is good in biocompatibility.

Description

Implant component is planted in a kind of combination

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 combination and plants implant component.

Background technology

Dental 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 the effect of planting tooth body and in use can be subject to for a long time alternating force in implant component, 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 there is certain defect in the tooth body of planting of the prior art on structure arranges, cause it to be combined defective tightness with human body alveolar bone reliable, easily produce the problems such as loosening, simultaneously, it is planted between tooth body and retained abutment and usually adopts regular screw threads to be connected, 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; And Dental Implant can not planted the sclerotin weakness such as tooth body tip 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 discharging, poor fluidity between material.In addition, in existing design, plant implant component and also usually exist mechanical property and biocompatibility also 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 combination to plant implant component, this combination is planted implant component and can be in real time will be planted tooth body with alveolar bone, be closely connected with retained abutment, can avoid preferably it to be subject to the interference of alternating force, and being convenient to material imports or discharges, there is intensity higher, have the characteristics such as good biocompatibility concurrently.

The purpose of this utility model is achieved in that

Implant component is planted in a kind of combination, it is characterized in that: it forms by planting tooth body, retained abutment, maintenance sleeve and extension spring; The described tooth body inside of planting 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; This plants tooth body is the cylinder being made up of cervical region, middle part and afterbody, and its cervical region and afterbody all adopt porous tantalum product, and its porosity is 60% ~ 70%; Described tail end face of planting tooth body also horizontal distribution has the guiding gutter being communicated with described through hole.

Adopt the cervical region of planting tooth body and the afterbody of the porous tantalum product of above-mentioned porosity, can meet it and plant the mechanical property requirements in implant component in this combination, be 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: the cervical region of planting tooth body and the afterbody that adopt porous tantalum product, can make bone grow 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, 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 afterbody by setting up guiding gutter, 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.

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.

Further, above-mentioned cervical region and afterbody of planting tooth body, realizes and being fixedly connected with of above-mentioned middle part of planting tooth body through bonding or welding respectively.Its connected mode is solid and reliable.

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.

Further, above-mentioned guiding gutter can be set to multiple.

The utlity model has following beneficial effect:

1, 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;

The guiding gutter of the horizontal distribution 2, being communicated with through hole by increase at the tail end face of planting tooth body, realize sclerotin weakness such as planting tooth body afterbody 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;

3, as cervical region and the afterbody of planting the non-stress position in tooth body structure, all adopt porous tantalum product, well meet and guaranteed its mechanical property, also greatly increase this combination simultaneously and planted the biocompatibility of implant component entirety, improve service life and implanted comfort level, having 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;

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

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram that described in this utility model embodiment 1, implant component is planted in combination.

Fig. 2 is the structural representation that described in Fig. 1, the integrated connection of implant component is planted in combination.

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: implant component is planted in a kind of combination, and it forms by planting tooth body 1, retained abutment 2, maintenance sleeve 9 and extension spring 4; It 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 also provided with regular screw threads, and tooth body 1 inside of planting of these through hole 3 bottoms is also 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, and after the perforation 10 that this threaded rod 5 passes in maintenance sleeve 9, with the regular screw threads corresponding matching of planting tooth body 1 inner surface setting, and the bottom of this threaded rod 5 is connected with one end of extension spring 4; It plants the cylinder of tooth body 1 for being made up of cervical region 6, middle part 7 and afterbody 8, its middle part 7 adopts medical titanium alloy product, cervical region 6 and afterbody 8 all adopt porous tantalum product, its porosity is 60% ~ 70%, and cervical region 6 and afterbody 8 are specifically realized and to be fixedly connected with this middle part 7 of planting tooth body 1 through laser weld respectively; 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 afterbody 8 end faces 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 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.In addition, at the end face of afterbody 8 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 tail end face 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. an implant component is planted in combination, it is characterized in that: it forms by planting tooth body (1), retained abutment (2), maintenance sleeve (9) and extension spring (4); Described tooth body (1) inside of planting 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); The described tooth body (1) of planting is for the cylinder that is made up of cervical region (6), middle part (7) and afterbody (8), and its cervical region (6) and afterbody (8) all adopt porous tantalum product, and its porosity is 60% ~ 70%; Described afterbody (8) end face of planting tooth body (1) also horizontal distribution has the guiding gutter (12) being communicated with described through hole (3).

2. implant component is planted in combination according to claim 1, 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).

3. plant implant component according to combination described in claim 1 or 2, 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.

4. plant implant component according to combination described in claim 1 or 2, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realization with described in plant being fixedly connected with of middle part (7) of tooth body (1); Described guiding gutter (12) is set to multiple.

5. implant component is planted in combination according to claim 3, it is characterized in that: described in plant cervical region (6) and the afterbody (8) of tooth body (1), respectively through bonding or welding realization with described in plant being fixedly connected with of middle part (7) of tooth body (1); Described guiding gutter (12) is set to multiple.

6. plant implant component according to combination described in claim 1 or 2, 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).

7. implant component is planted in combination according to claim 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).

8. implant component is planted in combination 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).

9. implant component is planted in combination according to claim 5, 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).