CN203634319U

CN203634319U - Combined tooth implant component for tooth implanting

Info

Publication number: CN203634319U
Application number: CN201320883578.7U
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: 2014-06-11
Anticipated expiration: 2023-12-30

Abstract

The utility model relates to a combined tooth implant component for tooth implanting. The component comprises an implant body, a retention pedestal, a retention sleeve and an extension spring, wherein a through hole of which the upper part and the lower part are cur through is formed inside the implant body; a pipe thread with a thread angle of 55 degrees is formed in the middle upper surface of the through hole, and a tension spring is arranged on the lower part of the through hole; a groove communicated with the through hole is formed in the top of the implant body, and the retention sleeve is correspondingly matched with the groove; a perforating hole of which the upper part and the lower part are cut through is formed in the retention sleeve; a screw rod is arranged on the lower part of the retention pedestal, and is matched with the pipe thread with the thread angle of 55 degrees in the implant body correspondingly after passing through the perforating hole in the retention sleeve; the lower end part of the screw rod is connected with one end of the tension spring; the implant body is a bar-shaped body consisting of a neck part, a middle part and a tail part, the neck part and the tail part are made of porous tantalum parts, and the porosity of the porous tantalum part is between 60 and 70 percent; diversion grooves communicated with the through hole are horizontally distributed in the end face of the tail part of the implant body. The combined tooth implant component is prevented from being disturbed by alternating force, and has an excellent biocompatibility.

Description

Implant component is planted in a kind of combination of Dental Implant

Technical field

This utility model relates to Medical oral cavity manual tooth planting's medical apparatus and instruments, and implant component is planted in the combination that relates in particular to a kind of Dental Implant.

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.There is certain defect in known implant implant component of the prior art: it is planted between tooth body and retained abutment and usually adopts regular screw threads to be connected, and this 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 its plant between tooth body and tissue, also exist in conjunction with defective tightness reliable, easily produce the problems such as loosening, Dental Implant can not planted the most advanced and sophisticated sclerotin weakness that waits of tooth body after implantation simultaneously, 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.In addition, it is poor that in existing design also usually there is mechanical property and biocompatibility in implant implant component, 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 combination of Dental Implant to plant implant component, the combination of this Dental Implant is planted implant component and can be closely 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, 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

An implant component is planted in the combination of Dental Implant, 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; 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; This plants tooth body is the clava 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 its mechanical property requirements in overall structure, 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.Simultaneously, 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.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 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.

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, 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 increased the biocompatibility that this plants implant component entirety simultaneously, improve service life and implanted comfort level, having increased stability and anti-verticity after this artificial prosthesis is implanted;

The guiding gutter of the horizontal distribution 2, 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;

3, 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;

4, 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;

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 decomposition texture schematic diagram that implant component is planted in the combination of Dental Implant described in this utility model embodiment 1.

Fig. 2 is the schematic diagram that the Integral connection structure of implant component is planted in the combination of Dental Implant described in Fig. 1.

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 of Dental Implant, 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; 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, 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 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 afterbody 8 end faces 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.

As cervical region 6 and the afterbody 8 of planting the non-stress position in tooth body 1 structure, all adopt porous tantalum product, well meet and guaranteed its mechanical property, also greatly increased the biocompatibility of this member integrated simultaneously, improve service life and implanted comfort level, having increased stability and anti-verticity after this artificial prosthesis is implanted; 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 its be partly 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 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

1. an implant component is planted in the combination of Dental Implant, 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; 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); The described tooth body (1) of planting is for the clava 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 the combination of Dental Implant according to claim 1, it 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).

3. plant implant component according to the combination of Dental Implant 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 the combination of Dental Implant 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 realize 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 the combination of Dental Implant 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 realize 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 the combination of Dental Implant 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 the combination of Dental Implant 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 the combination of Dental Implant 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 the combination of Dental Implant 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).