KR20040106155A - A Micro Implant Torque Driver for Lingual Orthodontic Treatment - Google Patents

Abstract

PURPOSE: A micro implant torque driver for dental prosthesis is provided which is capable of preventing an implant body and an implant head from breaking by allowing ratchet plates to be disengaged when an excessive force is applied. CONSTITUTION: The micro implant torque driver comprises: a wrench fixing device(3) having a wrench(10) connected thereto; a screw shaft(4) having a locking member(9a) connected to the wrench fixing device(3); a first ratchet plate(6) having a spring(23) and a groove(8a); a second ratchet plate(7) engaged with the first ratchet plate(6) and having a groove(8); a sleeve(2) having a locking member(9) engaged with the groove(8) of the second ratchet plate(7); torque adjusting devices(15,16) having a female screw and fastened with a male screw formed at a rear end of the screw shaft(4); a cap(20) fastened with the torque adjusting device(16); and a supporting device(21) having a ball receiving groove(17).

Description

A Micro Implant Torque Driver for Lingual Orthodontic Treatment}

The present invention relates to a micro-orthodontic torque driver for orthodontics, and more particularly, when the micro-implant used in orthodontics is placed in the alveolar bone, the micro-implant (screw) gives excessive force beyond the torque rotation force that the micro-implant (screw) can resist. The present invention relates to a micro-implant torque driver that rotates when more than necessary force is applied by using a pair of ratchet plates and springs rotating only in one direction to prevent the body and head constituting the micro-implant.

In dental orthodontics, micro-implants made of titanium are implanted in the alveolar bone to secure a fixed source during tooth movement, and the orthodontic elastic body is connected thereto to move the teeth. However, unlike these conventional titanium prosthetic implants (3mm or more), the orthodontic titanium micro-implants need to be planted between the teeth, so they are 1.2 ~ 1.8mm in diameter. In many cases, the body and the head that make up the head break.

As shown in FIG. 1, the handle 200 having the ball recess groove 400 is inserted into the dolly 300, and then the ball 500 and the spring 600 are screwed into the hole formed in the dolly 300. Since the general driver (100) formed by fastening the (700) is used to insert the micro-implant used for orthodontic treatment in the alveolar bone, the force to break the micro-implant by applying excessive force because it was forced to rely on the experience of the operator. There were many cases.

Therefore, when the micro-implant fracture occurs because the micro-implant fracture fails because the orthodontic micro-implant is placed on the alveolar bone by using the driver 100 as described above, it is difficult to remove the fractured micro-implant body as well as the patient. Many distresses occur, including severe pain.

The present invention has been invented to solve the above-mentioned problems, the body and the head constituting the micro-implant so that the torque driver to turn over when a force applied to the alveolar bone when the micro-implant used in orthodontics is applied to the alveolar bone The purpose is to prevent fractures and to increase the efficiency of orthodontic treatment.

1 is a cross-sectional view of a conventional orthodontic driver

2 is a cross-sectional view of the orthodontic torque driver of the present invention

Figure 3 is an exploded perspective view of the orthodontic torque driver of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

1. Torque driver 2. Sleeve

3. Twirl Fixture 4. Screw Shaft

6. 7. Ratchet Plate 8. 8a. home

9. 9a. Locking member 10. Dolly

Torque adjustment knob 20.Cap

21. Base 22. Scale

23. Spring

Hereinafter, the configuration of the orthodontic micro-implant torque driver of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, in the construction of the orthodontic micro-implant torque driver (1), by providing an elastic wire 24 in the tip end portion formed with a hexagonal micro-implant insertion groove (3) configured to prevent the micro-implant is easily pulled out Of the ball 12 and the dolly 10 supported by the spring 13 by inserting the ball 12 and the spring 13 into the holes formed in the dolly fixture 3 so as to hold the The ball recess groove 14 formed in the rear contact with each other was configured not to fall out arbitrarily.

The tumbler fixture 3 having the scale 22 formed on the outer circumference thereof is fitted with a screw shaft 4 to be fixed by a pin 5, and then interlocked with the spring 23 on the screw shaft 4 and rotated in only one direction. The ratchet plate (6) (7) is formed so as to engage the teeth, and the rear end of the ratchet (7) formed with the groove (8) is fitted with a sleeve (2) formed with a locking member (9) inwardly to the turntable fixture (3) It was configured to surround a portion of the spring 23 and the ratchet plate (6) (7).

In addition, the screw shaft 4 is formed by a latching member (9a) to be inserted into the groove (8a) formed in the ratchet plate 6 by the ratchet plate rotating in engagement with the ratchet plate (7) rotated with the sleeve (2) The rotational force of (6) was configured to be transmitted to the dolly fixture 3 and the dolly 10.

A female thread is formed on the rear male screw of the screw shaft 4 to which the sleeve 2 is coupled, and the torque adjusting means 15 and 16 for adjusting the torque by loosening and tightening are fastened and formed at the rear of the adjusting member 16. In the hole, the ball 18 and the spring 19 are supported by a cap 20 which is screwed in, but the ball 18 is configured to be supported by contact with the ball recess groove 17 formed in the base 21. .

Referring to the operation of the orthodontic micro-implant torque driver of the present invention configured as described above are as follows.

First, the scale 22 stamped on the outer circumference of the twirl fixture 3 in accordance with the shearing force of the micro-implant used for orthodontic treatment, and the spring 23 mounted between the twirl fixture 3 and the ratchet plate 6 The elastic force is to be adjusted, in which case the first adjustment by turning the torque adjustment knob (15) fastened to the male screw of the screw shaft (4), and then another torque control knob (16) in contact with the torque adjustment opening (15) By fixing by rotating a double tightening action to prevent the loosening of the torque adjustment port (15).

As described above, the elasticity of the spring 23 is adjusted with the torque adjusting holes 15 and 16, and then the micro-implant is inserted into the hexagonal fitting groove formed at the distal end of the dolly 10, wherein the micro-implant is fitted. Since it is supported by the elastic wire 24, it is easily prevented from flowing down.

Insert the micro-implant into the twirl (10) and then hold the sleeve (2) of the torque driver (1) with the thumb and index finger and support the support (21) with the palm of the hand to turn the sleeve (2) of the sleeve (2) The catching member 9 formed inside the rear end rotates in contact with the groove 8 of the ratchet plate 7, at which time another ratchet plate 6 engaged with the ratchet plate 7 rotates.

When the ratchet plate 6 rotates, the screw shaft 4, the tether holder 3, and the spring () are held by the locking member 9a of the screw shaft 4 inserted into the groove 8a formed in the ratchet plate 6. 13) and the dolly 10 supported by the ball 12 rotate together to place the micro-implant into the alveolar bone. At this time, the torque adjustment holes 15 and 16 coupled to the rear end of the screw shaft 4 also rotate together, and the support hole 21 is in contact with the ball recess groove 17 to the ball 18 supported by the spring 29. Thereby acting to support the sleeve 2 and the twirl fixture 3 and the twirl 10 to rotate.

At this time, the ratchet plate (6) (7) coupled to the screw shaft (4) is used only when placing the micro implant in the alveolar bone because the tooth is configured to rotate only in one direction, the groove (8) and the locking member (9) The ratchet plate 7 which rotates together by turning the sleeve 2 by using a) has a ratchet plate (8a) inserted into the engaging member 9a of the screw shaft 4 and being pushed by the spring 23 ( 6) When rotation is engaged with the ratchet plate 6, the ratchet plate 7 engaged with the ratchet plate 6 is pushed out, and the sleeve 2 is turned over. It works.

As described above, the orthodontic micro-implant torque driver of the present invention is engaged with each other when a force greater than the torque of the micro-implant is applied when the micro-implant is placed on the alveolar bone by using a pair of ratchet plates supported by springs and interlocked with each other. There is an effect of preventing the body and the head of the micro-implant fractured by causing the ratchet plate rotating in one direction to fall apart.

Claims (1)

The screw shaft 4 with the locking member 9a is coupled to the dolly fixture 3 to which the dolly 10 is coupled and the scale 22 is marked on the outer circumference, and the spring 23 is connected to the screw shaft 4. And a latching member 6 provided with the groove 8a and another ratchet plate 7 engaged with the ratchet plate 6 and then engaging with the groove 8 of the ratchet plate 7. 9) inserts the sleeve (2) is formed, and tighten the torque adjustment holes (15, 16) formed with a female thread to the rear male screw of the screw shaft (4) and then the ball (18) to the torque adjustment holes (16) Orthodontic micro-implant torque driver, characterized in that by coupling the support hole 21 is formed with a ball indentation groove 17 by fastening the cap 20 for supporting the spring (20).