CN203710164U

CN203710164U - Dental implant

Info

Publication number: CN203710164U
Application number: CN201420086848.6U
Authority: CN
Inventors: 叶雷
Original assignee: Chongqing Runze Pharmaceutical Co Ltd
Current assignee: Chongqing Runze Pharmaceutical Co Ltd
Priority date: 2014-02-27
Filing date: 2014-02-27
Publication date: 2014-07-16
Anticipated expiration: 2024-02-27

Abstract

The utility model relates to a dental implant which is composed of an implant body (1), a retaining table (2), a compression spring (3) and a buffer cushion (8); the implant body (1) is a porous tantalum-made part; the porosity of the implant body (1) is 60-70%; a through hole (10) penetrating from the top to the bottom is arranged in the implant body (1); a general thread is arranged on the surface at the upper middle part of the through hole (10); axial cutting edges (4) are also symmetrically arranged on the outer surface at the lower middle part of the implant body (1); a threaded rod is arranged at the lower part of the retaining table (2); the threaded rod is matched with the general thread on the inside surface of the implant body (1); the buffer cushion (8) is arranged on the retaining table (2); and the compression spring (3) is sleeved and fixed on the outer surface (6) at the lower part of the implant body (1). The dental implant disclosed by the utility model is capable of avoiding interference of alternating force, is more reasonable in structure and convenient to implant, and has both good mechanical property and biocompatibility.

Description

A kind of tooth implant

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 tooth implant.

Background technology

The dental implant surgical of known current routine is by one, to plant tooth body to imbed in advance dental bed, after above this plants tooth body, install again the maintenance platform of a separation, finally by assemble again a corona on this maintenance platform, and realize the implantation of artificial tooth.But in clinical practice, it can be subject to the effect of alternating force for a long time, particularly when Dental Implant when mounted, if move past manyly to words lateral deviation, easily occur in a short time loosening, now it with body bone tissue between can not realize that close contact is connected, steadiness is poor, and because its structural design is unreasonable, cause this becoming flexible can not again to be tightened In the view of at present, can only again plant, thereby increased the operations such as plantation again, caused significant wastage.

In addition, existing planting in dental structure on its maintenance platform usually adopts the mode of directly installing that artificial tooth is installed, and its denture upper jaw power is difficult to adjusted distribution, and periodontal trauma easily occurs, and its canine implant load is larger, plants tooth success rate lower, and service life is shorter.And in its structural design, also there is certain defect, cause its mechanical property and biocompatibility poor, after long-time use, there will be repulsion with tissue, and affect its service life; Simultaneously the tooth body of planting of existing structure also exists resistance larger when piercing between body bone tissue, pierces process and operation is very inconvenient, and the misery that patient suffers is larger.

Utility model content

The purpose of this utility model is to provide a kind of tooth implant, and this tooth implant can be avoided the interference of alternating force preferably, more reasonable structure, and convenient implantation, has good mechanical property and biocompatibility concurrently.

The purpose of this utility model is achieved in that

A tooth implant, is characterized in that: it forms by planting tooth body, maintenance platform, Compress Spring and cushion pad; 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 surface of this through hole middle and upper part is provided with regular screw threads; Described body middle and lower part outer surface of planting tooth body is also symmetrically arranged with axial cutting edge; Described maintenance platform bottom is threaded rod, and this threaded rod coordinates with the regular screw threads of planting the inner surface of tooth body; On described maintenance platform, be provided with cushion pad; Described Compress Spring is fixed by socket in the lower surface outside of planting tooth body.

Through adopt above-mentioned porosity porous tantalum product plant tooth body, can meet the structural mechanical property requirement of this tooth implant in application, and through adopting porous tantalum structure, can also make bone grow into and the structure of growing in forming, thereby as a whole with body bone tissue combination, when greatly having improved biocompatibility, also well met its mechanical property, improved service life and implanted comfort level, having increased stability and anti-verticity after artificial prosthesis is implanted.This porous tantalum product specifically can adopt the preparations such as foam dipping method, die pressing.

Further, the body middle part outer surface of planting tooth body between above-mentioned axial cutting edge is also provided with discontinuity screw thread.The tooth body of planting of this structure setting has been realized with alveolar bone and being firmly connected, and has and further prevent from and the effect such as rotation.

Further, above-mentioned bottom end face of planting tooth body also horizontal distribution have the guiding gutter being communicated with above-mentioned through hole.By increasing guiding gutter in this bottom, can improve greatly the mobility at the broken end of flesh and blood, make itself and porous material better compatible.

Further, the top of above-mentioned maintenance platform is Rotary-table or cylinder, and one-body molded with the threaded rod of above-mentioned maintenance platform bottom.The maintenance platform of this Rotary-table shape or cylindrical shape, can install cushion pad in order to Corresponding matching, and then again corona is installed on cushion pad, has realized the implantation of artificial tooth.

Further, also arrange porosely in the top of above-mentioned maintenance platform, on above-mentioned cushion pad, also correspondence arranges porose.By being respectively arranged with hole in the top at maintenance platform He on cushion pad, can in application, adopt the modes such as inserted link by the two fixing interlocking together, prevent from coming off.

The utlity model has following beneficial effect:

1, plant tooth body with maintenance platform by being threaded, easily produce self-locking, good stress performance;

2, by axial cutting edge is set, when it is pierced, resistance is less, pierces process convenient, and the misery that patient suffers will reduce greatly;

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

4, at the bottom end face of planting tooth body by increasing the guiding gutter of the horizontal distribution being communicated with through hole, greatly improved the mobility of the materials such as flesh and blood broken end, make it and be set to porous tantalum product to plant tooth body better compatible;

5, the discontinuity screw thread that its outer surface of planting tooth body body arranges, has realized with alveolar bone and being firmly connected, and further had the effects such as the sinking of preventing and rotation, has strengthened and has been connected with the firm of alveolar bone;

6, the bottom that employing is fixed on alveolar bone by Compress Spring one end, to continue applying active force to planting tooth body, is fixed on alveolar bone, has guaranteed the close contact all the time of the two; In use, if because external force makes to plant tooth body to be become flexible, Compress Spring makes it again keep close contact by elastic force, and then has guaranteed fixed effect;

7, by add cushion pad between artificial tooth and maintenance platform, scalable denture upper jaw power is distributed, and has avoided periodontal trauma, has alleviated the load of canine implant, has improved canine implant success rate, and has increased its service life; And further at it, on the two, offer respectively porosely, make both interlockings together, prevent from coming off.

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram of tooth implant described in embodiment 1.

Fig. 2 is the Integral connection structure schematic diagram of tooth implant described in Fig. 1.

Fig. 3 is that the axle of tooth implant described in Fig. 1 is surveyed view.

Fig. 4 is the decomposition texture schematic diagram of tooth implant described in embodiment 2.

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 Figures 1 to 3: a kind of tooth implant, it forms by planting tooth body 1, maintenance platform 2, Compress Spring 3 and cushion pad 8; It is planted tooth body 1 and adopts porous tantalum product, and its porosity is 60% ~ 70%, and this porous tantalum product specifically can adopt method preparation described in patent 201110296515.7; This is planted tooth body 1 inside and is provided with the through hole 10 running through up and down; The surface of these through hole 10 middle and upper parts is provided with regular screw threads; The body middle and lower part outer surface of planting tooth body 1 is also symmetrically arranged with axial cutting edge 4; The body middle part outer surface of planting tooth body 1 that its axial cutting edge is 4 is also provided with discontinuity screw thread; The bottom end face of planting tooth body 1 also horizontal distribution has the guiding gutter 5 being communicated with through hole 10; Maintenance platform 2 bottoms are threaded rod, and this threaded rod coordinates with the regular screw threads of planting tooth body 1 inner surface; Compress Spring 3 is fixed by socket at 6 places, lower surface outside of planting tooth body 1; The top of maintenance platform 2 is Rotary-table, and adopts medical titanium alloy one-body molded with the threaded rod of maintenance platform 2 bottoms, and on maintenance platform 2, is provided with cushion pad 8; In the top of maintenance platform 2, also arrange porose 7, on cushion pad 8 also correspondence arrange porose 7, by these correspondence two interior inserted links that arrange in hole 7, and by the two fixing interlocking together; The maintenance platform 2 of this Rotary-table shape, Corresponding matching is installed cushion pad 8, after corona 9 is installed on cushion pad 8 again, realized the implantation of artificial tooth.

In clinical practice, Compress Spring 3 one end are fixed on to the bottom of alveolar bone, the other end is fixed on 6 places, lower surface outside of planting tooth body 1, to continue applying active force to planting tooth body 1, is fixed on alveolar bone, has guaranteed the close contact all the time of the two; In use, if because external force makes to plant tooth body 1 to be become flexible, Compress Spring 3 makes it again keep close contact by elastic force, and then has guaranteed fixed effect.

Embodiment 2

As shown in Figure 4: a kind of tooth implant, it forms by planting tooth body 1, maintenance platform 2, Compress Spring 3 and cushion pad 8; It is planted tooth body 1 and adopts porous tantalum product, and its porosity is 60% ~ 70%, and this porous tantalum product specifically can adopt method preparation described in patent 201110296515.7; This is planted tooth body 1 inside and is provided with the through hole 10 running through up and down; The surface of these through hole 10 middle and upper parts is provided with regular screw threads; The body middle and lower part outer surface of planting tooth body 1 is also symmetrically arranged with axial cutting edge 4; The body middle part outer surface of planting tooth body 1 that its axial cutting edge is 4 is also provided with discontinuity screw thread; Maintenance platform 2 bottoms are threaded rod, and this threaded rod coordinates with the regular screw threads of planting tooth body 1 inner surface; Compress Spring 3 is fixed by socket at 6 places, lower surface outside of planting tooth body 1; The top of maintenance platform 2 is Rotary-table, and adopts medical titanium alloy one-body molded with the threaded rod of maintenance platform 2 bottoms, and on maintenance platform 2, is provided with cushion pad 8; In the top of maintenance platform 2, also arrange porose 7, on cushion pad 8 also correspondence arrange porose 7, by these correspondence two interior inserted links that arrange in hole 7, and by the two fixing interlocking together; The maintenance platform 2 of this Rotary-table shape, Corresponding matching is installed cushion pad 8, after corona 9 is installed on cushion pad 8 again, realized the implantation of artificial tooth.

Claims

1. a tooth implant, is characterized in that: it forms by planting tooth body (1), maintenance platform (2), Compress Spring (3) and cushion pad (8); 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 (10) running through up and down; The surface of this through hole (10) middle and upper part is provided with regular screw threads; Described body middle and lower part outer surface of planting tooth body (1) is also symmetrically arranged with axial cutting edge (4); Described maintenance platform (2) bottom is threaded rod, and this threaded rod coordinates with the regular screw threads of planting the inner surface of tooth body (1); On described maintenance platform (2), be provided with cushion pad (8); Described Compress Spring (3) is fixed by socket in the lower surface outside (6) of planting tooth body (1) and locates.

2. tooth implant according to claim 1, is characterized in that: the body middle part outer surface of planting tooth body (1) between described axial cutting edge (4) is also provided with discontinuity screw thread.

3. according to tooth implant described in claim 1 or 2, it is characterized in that: described in plant tooth body (1) bottom end face also horizontal distribution have the guiding gutter (5) being communicated with described through hole (10).

4. according to tooth implant described in claim 1 or 2, it is characterized in that: the top of described maintenance platform (2) is Rotary-table or cylinder, and one-body molded with the threaded rod of described maintenance platform (2) bottom.

5. tooth implant according to claim 3, is characterized in that: the top of described maintenance platform (2) is Rotary-table or cylinder, and one-body molded with the threaded rod of described maintenance platform (2) bottom.

6. tooth implant according to claim 4, is characterized in that: porose (7) are also set in the top of described maintenance platform (2), and on described cushion pad (8), also correspondence arranges porose (7).

7. tooth implant according to claim 5, is characterized in that: porose (7) are also set in the top of described maintenance platform (2), and on described cushion pad (8), also correspondence arranges porose (7).