CN1520787A

CN1520787A - Tooth securing member driving system for teeth transplantation

Info

Publication number: CN1520787A
Application number: CNA031043658A
Authority: CN
Inventors: 崔贤珉
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-09
Filing date: 2003-02-09
Publication date: 2004-08-18

Abstract

The present invention relates to the driving system for rotating the artificial tooth pedestal as the planting fixture during transplanting artificial tooth. The driving system includes a planting fixture and a fixture driver. The planting fixture consists of outer screw and hexagonal screw nut, and the middle shaft has screw hole with outer guide hole in the upper end. The fixture driver includes hexagonal slot, support pin extending from the hexagonal slot toward the axis and elastic finger-like strip for strengthening and fastening the planting fixture. During operation, the elastic finger-like strip and the support pin are inserted into the screw hole and the driver is rotated to plant the fixture into the jawbone. The present invention completes the transplantation of the planting fixture by using the driver only and is small and suitable for operating in narrow space.

Description

The tooth fixture drive system that tooth transplantation is used

Technical field

The tooth that the present invention relates to artificial tooth implantation is used when the mandible is implanted drive system, comprises implanting the tooth fixture in patient's mandible and being used for rotating fixture and the driving arrangement that is fixed in the jawbone boring is the fixture driver.

Background technology

Now, artificial tooth implantation replaces patient's damage or damaged natural tooth, and the technology row of executing art on its position is to using widely.Make a general survey of implantation technique in the past, it is the hole that in the seat of mandible plan implantation artificial teeth, gets out suitable diameter earlier, fixture is filled in the hole, with driver it is rotated hand-hole then, fixture just is fixed in the mandible when the top layer in hole forms the helical form plating, at last artificial teeth is added the upper end that is fixed in fixture with fixed screw, the artificial tooth implantation process is just all finished.

Thomas H.Day is the 6th, 206 of the U.S. the, No. 696 patent disclosures artificial teeth implant drive system.The patent of Thomas is seen Fig. 1.As shown in FIG., for with artificial tooth implantation in mandible, the upper end of implanting fixture (100) is equipped with baroque healing abutment (HEALING ABUTMENT) (101), i.e. rotation is implanted fixture and still needed except needing driver (104) such as the auxiliary facilities of healing abutment (101).

Technology according to Thomas, fixture (100) is filled in before the hole of the suitable diameter that mandible gets out, the abutment (101) that will heal is installed in the screw hole of fixture axis, mounted fixture is filled in the boring of mandible, and then the whirler of driver is inserted in the upper end of healing abutment (101), the rotation by driver is together implanted the fixture (100) and the abutment (101) that heals in the mandible.Treating that fixture and mandible are organized fully merges (OSSEOINTEGRATION), and fixture can be removed healing abutment (101) firmly attached to behind the mandible.

About this technology, because of the revolving force of driver passes to fixture (100) by healing abutment (101), the revolving force that this intermediate link is subjected to is excessive, the abutment (101) that heals so passes to the strength of fixture will be above the strength of actual needs, so when fixture is transplanted improper needs and is extracted, just must be by boring machine instruments such as (TREPANNING).When the abutment (101) that will heal separated from fixture, owing to be subjected to the influence of contrary revolving force, fixture just might related loosening deficiency.

In sum, in the artificial tooth implantation art, used the some aids except that driver in the past, in narrow and small oral cavity again and again connection work, complicated operating process and the inefficiency between each appliances.Especially in the oral cavity, loosen the healing abutment when (101), the fixture of having transplanted already (100) is also together loosened, have and make artificial tooth be difficult to firmly be attached to the deadly defect of mandible.Whirler insertion healing abutment (101) with driver is the operating process of an arduousness simultaneously, especially the fixture because of built-in healing abutment (101) is connected driver (104) simplely, must hand-held driver fixture can be moved on to the seat of intending implantation in narrow oral cavity, difficulty is bigger.

Summary of the invention

The present invention is intended to only utilize this a kind of instrument of driver to be about to the small stationary part to move to purpose seat in the oral cavity, and by rotation it is implanted in mandible.

The present invention in order to achieve the above object, structurally by implanting fixture (1) and fixture

Driver (5) constitutes.Implant the screw (1d) of fixture (1) by the periphery, the polygonal nut (1a) of its upper end, the screw hole (1b) that extends to central axis direction from the upper end in order to fix bizet with holding screw, screw hole top diameter constitutes slightly greatly and with the co-axial entrance hole of screw hole (1c) than the minimum diameter of screw hole.The polygonal nut of fixture is clipped in the bar that possesses polygonal slot (Shank) of accommodating the lower end, extend and can insert support portion (5c) in the entrance hole of fixture from slot, extend from the support portion of driver and can be inserted into a plurality of elastic force finger-like bars (5d) formation in the screw hole of fixture for high resiliency ground supports fixture.

Description of drawings

Longitudinal section after the combination of the implantation fixture drive system of Fig. 1 prior art

Fig. 2 separation rear oblique view of the present invention

Fig. 3 combination of the present invention back longitudinal section

Fig. 4 other combination back longitudinal sections of the present invention

The drawing symbol description

1: implant fixture

1a: polygonal nut

1b: screw hole

1c: entrance hole

1d: screw

1e: polygonal slot

1f: polygonal spanner

5: the fixture driver

5b: slot

5c: support zone

5d: finger-like bar alligator clamp

Specific embodiments

Below implant the embodiment of fixture drive system with regard to the present invention, describe in detail according to picture.

As shown in Figure 2, the present invention implants the fixture drive system, implants fixture (1) and with fixture driver (5) formation in its rotation implant bore by being implanted to the implantation fixture (1) in the patient's mandible boring and clamping.

Above-mentioned implantation fixture (1) outside is screw (1d), and its upper end is the hexagonal (hexagon)nut (1a) in the slot (5b) that can insert fixture driver (5).As shown in Figure 3, be formed with screw hole (1b) towards central axis direction, top bizet (not having diagram) is fixed with regard to available holding screw like this.The upper end of above-mentioned screw hole (1b) have diameter than the big slightly entrance hole (1c) of the minimum diameter of screw hole (1b) and with screw hole be coaxial.

Fixture driver of the present invention (5) as shown in Figures 2 and 3, front end has slot (5b) that the hexagonal (hexagon)nut (1a) that can supply fixture (1) inserts and is coaxial and extend to the interior support portion (5c) of entrance hole (1c) that the outside can be inserted into fixture (1) with slot (5b).Support portion (5c) but front end be high-tension fix the finger-like bar alligator clamp (5d) of screw hole (1b).

Above-mentioned alligator clamp (5d) is made of a plurality of spring leafs of arranging with circumferencial direction as shown in Figure 2, and each spring leaf is its also apparent more expansion at interval more down.

The present invention the time is to possess in the screw hole (1b) that finger-like bar alligator clamp (5d) at front end is inserted into the fixture (1) that will execute art in the jawbone the patient in operation, simultaneously support portion (5c) inserted in the entrance hole (1c) of fixture (1), fixture (1) can accurately be located in the oral cavity by support portion (5c) like this, the lateral magnification power that produces when relying on alligator clamp (5d) rotation simultaneously can be firmly fixed at fixture (1) lower end of driver (5), can not break away from.

In the boring of during transplanting the fixture of front end (1) insertion jawbone having been bored, reuse throw (not having diagram) rotating driver (5), fixture (1) is just implanted in the mandible in rotation.

Fig. 4 also has other embodiments of the present invention, promptly replaces hexagonal (hexagon)nut in the upper end of fixture (1) with hexagonal slot (1e), can insert the die nut (1f) of fixture driver (5) lower end in this hexagonal slot (1e).

The present invention only depends on a fixture driver can finish whole migration process of fixture, need not to rely in the past auxiliary equipment such as healing abutment essential when doing transplant operation, complete equipment is short and pithy, in narrow space, also can easyly operate, especially can be at the direct fixing fixture of the front end of fixture driver, make the operation of fixture more conveniently, improved accuracy rate and the benefit of operation.

Claims

1. artificial teeth is implanted the fixture drive system, comprises following 1) and 2),

1) by the screw (1d) of outside and the polygonal nut (1a) of upper end thereof, the screw hole (1b) that extends to central axis direction from the upper end for bizet is fixed with holding screw, the diameter of screw hole (1b) upper end be big slightly and implantation fixture (1) that constitute with the co-axial entrance hole of screw hole (1b) (1c) than screw hole (1b) minimum diameter;

2) by the polygonal slot (5b) that can supply the hexagonal (hexagon)nut (1a) of insertion fixture (1), to extending support portion (5c) in the entrance hole (1c) to inject fixture (1), be inserted in the screw hole (1b) of fixture (1) and fix the fixture driver (5) of (5c) front end of fixture with being used for high-tension to a plurality of alligator clamps (5d) composition of coaxial direction extension from the support portion with slot (5b) coaxial direction.

2. artificial teeth is implanted the fixture drive system, comprises following 1) and 2),

1) by the screw (1d) of outside, the polygonal groove (1e) of its upper end, for bizet is fixed from the upper end screw hole (1b) that forms to central axis direction with holding screw, the upper diameter of screw hole (1b) is big slightly and implantation fixture (1) that constitute with the co-axial entrance hole of screw hole (1b) (1c) than the minimum diameter of screw hole (1b);

2) by the polygonal spanner (5f) in the polygonal groove (1a) that can insert above-mentioned fixing piece (1), from polygonal spanner (5b) thus the support portion (5c) of bottom surface in central axis direction is extended the entrance hole (1c) be inserted into fixture (1), from support portion (5c) thus front end extends the fixture driver (5) of a plurality of alligator clamps (5d) formation that is used for high-tension ground support fixture that can insert screw hole (1b) in to coaxial direction.