CN204092235U - A kind of mouth cavity planting body - Google Patents

Abstract

This utility model relates to a kind of mouth cavity planting body.It is made up of implant member (1), retention means (2) and retention sleeve (3); Implant member (1) adopts porous tantalum product, and porosity is 60% ~ 70%; There is the through hole (4) of up/down perforation implant member (1) inside, and there are regular screw threads through hole (4) side; The stopper slot (5) be communicated with through hole (4) is arranged at implant member (1) top, with Matching installation retention sleeve (3); The bottom of retention means (2) is threaded rod (6), and coordinates with through hole (4) side regular screw threads through retention sleeve (3); Implant member (1) outer surface of upper is provided with the annular groove (7) of circumference distribution, and middle part appearance is with trapezoidal thread (8) or rectangular thread, and lower external is with angular thread (9); Implant member (1) lower end is also provided with axially extended chip removal flute (10).This utility model is conveniently implanted, connect closely, be beneficial to mass exchange and foreign body is discharged.

Description

A kind of mouth cavity planting body

Technical field

This utility model relates to oral cavity manual tooth planting, particularly relates to a kind of mouth cavity planting body.

Background technology

At present, be applied to the mouth cavity planting body in the manual tooth planting of oral cavity, include the compositions such as implant member, retention means and corona from bottom to top.For the existing design of mouth cavity planting body, although there is larger diversity between each design, but wherein still there are some common defects, as its structural design is mostly independently system, after implanting, be just difficult to realize that biotic factor etc. is increased the material of planting tooth steadiness be again incorporated into the sclerotin weakness such as bottom, completely cut off input or the exchange of material between extraneous and body bone tissue; Self tapping is poor, implantation is difficult, and the materials such as the soft tissue chip produced in implantation process are not easily discharged, and stays in the body to cause to addle, infect; Biocompatibility is poor, is connected defective tightness with body bone tissue, easy loose or dislocation; The support force that the retention means exposing to dental surface is subject in the horizontal direction is lower, easily suffers the effect of horizontal lateral force and ruptures, mechanical property and lower etc. the defect of reliability.

Utility model content

The purpose of this utility model is to provide a kind of mouth cavity planting body, and this mouth cavity planting body is conveniently implanted, connect closely, be beneficial to mass exchange and foreign body is discharged, and has good biocompatibility and mechanical property concurrently.

The purpose of this utility model is achieved in that

A kind of mouth cavity planting body, is characterized in that: it is made up of implant member, retention means and retention sleeve; Described implant member adopts porous tantalum product, and its porosity is 60% ~ 70%; Described implant member inside is provided with the through hole of up/down perforation, and through hole side is provided with regular screw threads; The top of described implant member is also provided with the stopper slot be communicated with described through hole, and in stopper slot, Corresponding matching installs described retention sleeve; The bottom of described retention means is threaded rod, after threaded rod passes described retention sleeve, with the regular screw threads corresponding matching of described implant member interior bone side; Described implant member outer surface of upper is provided with the annular groove of circumference distribution, and middle part appearance is with trapezoidal thread or rectangular thread, and lower external is with angular thread; Described implant member lower end is also provided with axially extended chip removal flute.

The quantity of above-mentioned annular groove is 1 to 3.Above-mentioned annular groove is more than or equal to 0.2mm apart from the distance of above-mentioned implant member upper surface, is less than or equal to 0.3mm.

The quantity of above-mentioned chip removal flute is 2 ~ 3, is uniformly distributed along implant member lower external.

The head of above-mentioned retention means and the threaded rod of its underpart one-body molded.After the head of this retention means being fixed on retention sleeve in application, namely at this retention sleeve outer Corresponding matching, corona can being installed, and then achieving artificial tooth implantation.

Stepped hole is set in above-mentioned retention sleeve, spacing with what realize retention means head, thus ensure that the two reliability connected.

The thread form angle of the trapezoidal thread in the middle part of above-mentioned implant member is more than or equal to 90 °, is less than or equal to 135 °; The thread form angle of above-mentioned implant member bottom angular thread is more than or equal to 30 °, is less than or equal to 80 °.

The axial length ratio of the trapezoidal thread on above-mentioned implant member and angular thread is more than or equal to 1.4, is less than or equal to 1.5.

This utility model has following beneficial effect:

1, in its overall structure, implantation piece is connected by threaded engagement with retention means, easily produces self-locking, sealing and good stress performance, and simplify the structure;

2, implant member is porous tantalum product, well meets mechanical property requirements, improves stress performance, considerably increase biocompatibility simultaneously, improve service life and implant comfort level, adding the stability after implantation and anti-rotation performance, substantially increase the success rate of plantation;

3, in the middle part of implant member, trapezoidal thread or rectangular thread improve the mechanical strength of structure, improve stress performance, and bottom angular thread improves self tapping, implant more efficient and convenient, substantially increase the success rate of plantation, effectively improve clinical application effect;

4, by Corresponding matching in stopper slot, retention sleeve is installed, afterwards the threaded rod of retention means bottom is connected with implant member through after retention sleeve again, thus strengthen the retention means support force be subject in the horizontal direction, and the probability greatly reducing its effect suffering horizontal lateral force and rupture;

5, the setting of through hole is convenient to that biotic factor etc. is increased the material of planting tooth steadiness and is incorporated into the sclerotin weakness such as bottom, and add the stability of connection, being convenient to external substance is added in implanting prosthetic, makes its and bony fusion faster, better;

6, implant member outer surface of upper is with circumferential annular groove, increases the contact area with human body, for osteogenesis provides certain space, be conducive to sclerotin and grow healing fast, and alleviate the deadweight of Dental Implant prosthese, be conducive to the combination of assembly and human body, promote comfort;

7, the chip removal flute set up serves foreign bodies such as removing in implantation process the soft tissue chip that produces, avoids it to stay in the body causing addling, the effect such as infection, effectively improves clinical application effect.

Accompanying drawing explanation

Fig. 1 is the STRUCTURE DECOMPOSITION schematic diagram of mouth cavity planting body described in this utility model embodiment 1.

Fig. 2 is the structural representation of the integrated connection of mouth cavity planting body described in Fig. 1.

Fig. 3 is the front view of the external structure of mouth cavity planting body described in Fig. 1.

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 Figures 1 to 3: a kind of mouth cavity planting body, it is made up of implant member 1, retention means 2 and retention sleeve 3; Its implant member 1 adopts porous tantalum product, and its porosity is 60% ~ 70%, and this porous tantalum product specifically can adopt method preparation as described in patent 201110296515.7; This implant member 1 inside is provided with the through hole 4 of up/down perforation, and through hole 4 side is provided with regular screw threads; The top of this implant member 1 is also provided with the stopper slot 5 be communicated with through hole 4, and in this stopper slot 5, Corresponding matching installs retention sleeve 3, is set to stepped hole in this retention sleeve 3; The bottom of its retention means 2 is threaded rod 6, after this threaded rod 6 passes retention sleeve 3, with the regular screw threads corresponding matching of implant member 1 interior bone 4 side; Its implant member 1 outer surface of upper is provided with the annular groove 7 of two circumference distributions, and these two annular grooves 7 equal 0.25mm apart from the maximum distance of implant member 1 upper surface; In the middle part of implant member 1, appearance equals the trapezoidal thread 8 of 105 ° with thread form angle, and lower external equals the angular thread 9 of 55 ° with thread form angle, and the axial length ratio of trapezoidal thread 8 and angular thread 9 equals 1.45; Its implant member 1 lower end is also provided with an axially extended chip removal flute 10; The head of its retention means 2 and the threaded rod 6 of its underpart adopt medical titanium alloy one-body molded, and after the head of retention means 2 is seated in retention sleeve 3, then at this retention sleeve 3 outer Corresponding matching, corona is installed, and then achieve artificial tooth implantation.

In clinical practice, after implant member 1 is implanted, by through hole 4, biotic factor etc. is increased the material of planting tooth steadiness and be incorporated into the sclerotin weakness such as bottom, add the stability of connection, being convenient to external substance is added in implanting prosthetic, makes itself and bony fusion faster, better; In addition, cannelure 7 has the effect starting the growth of bone bed, hold area of new bone, and due to its loop configuration, the area of new bone of shaping can also play snap action to this complex implanted false teeth prosthese, makes its maintenance more stable, not easily occurs to loosen.

Claims (7)

1. a mouth cavity planting body, is characterized in that: it is made up of implant member (1), retention means (2) and retention sleeve (3); Described implant member (1) adopts porous tantalum product, and porosity is 60% ~ 70%; Described implant member (1) inside is provided with the through hole (4) of up/down perforation, and through hole (4) side is provided with regular screw threads; The top of described implant member (1) is also provided with the stopper slot (5) be communicated with described through hole (4), and stopper slot (5) interior Corresponding matching installs described retention sleeve (3); The bottom of described retention means (2) is threaded rod (6), threaded rod (6) through after described retention sleeve (3), with the regular screw threads corresponding matching of described implant member (1) interior bone (4) side; Described implant member (1) outer surface of upper is provided with the annular groove (7) of circumference distribution, and middle part appearance is with trapezoidal thread (8) or rectangular thread, and lower external is with angular thread (9); Described implant member (1) lower end is also provided with axially extended chip removal flute (10).

2. mouth cavity planting body according to claim 1, is characterized in that: the quantity of described annular groove (7) is 1 to 3; Described annular groove (7) is more than or equal to 0.2mm apart from the distance of described implant member (1) upper surface, is less than or equal to 0.3mm.

3. mouth cavity planting body according to claim 1 or 2, is characterized in that: the quantity of described chip removal flute (10) is 2 ~ 3, is uniformly distributed along implant member (1) lower external; The head of described retention means (2) and the threaded rod (6) of its underpart one-body molded; Described retention sleeve is set to stepped hole in (3).

4. mouth cavity planting body according to claim 1 or 2, is characterized in that: the thread form angle of the trapezoidal thread (8) at described implant member (1) middle part is more than or equal to 90 °, is less than or equal to 135 °; The thread form angle of described implant member (1) bottom angular thread (9) is more than or equal to 30 °, is less than or equal to 80 °.

5. mouth cavity planting body according to claim 3, is characterized in that: the thread form angle of the trapezoidal thread (8) at described implant member (1) middle part is more than or equal to 90 °, is less than or equal to 135 °; The thread form angle of described implant member (1) bottom angular thread (9) is more than or equal to 30 °, is less than or equal to 80 °.

6. mouth cavity planting body according to claim 4, is characterized in that: the trapezoidal thread (8) on described implant member (1) and the axial length ratio of angular thread (9) are more than or equal to 1.4, are less than or equal to 1.5.

7. mouth cavity planting body according to claim 5, is characterized in that: the trapezoidal thread (8) on described implant member (1) and the axial length ratio of angular thread (9) are more than or equal to 1.4, are less than or equal to 1.5.