CN106073914B - The universal position indicator of micro-implant - Google Patents

Abstract

The invention belongs to the technical field of micro-implant positioning, and specifically relates to a micro-implant universal locator, which solves the problems existing in the existing micro-implant implantation auxiliary positioning methods, including angle adjustment rods, height adjustment rods, level adjustment Mechanism, plate I and plate III of the horizontal adjustment mechanism are connected through two parallel guide rods I and guide rod II, plate II is set on guide rod I and guide rod II and can slide relative to the two rods, and the screw rod passes through plate III Cooperate with the thread of plate Ⅱ, the upper part of plate Ⅰ and plate Ⅱ are respectively provided with pads, one end of the angle adjustment rod is the connecting end, and the other end is inserted into the through hole on the height adjustment rod, and the height adjustment rod has a positioning perpendicular to the angle adjustment rod. Screw Ⅰ, the other end of the height adjustment rod is inserted into the horizontal rod, and the horizontal rod has a positioning screw Ⅱ set perpendicular to the height adjustment rod, and one end of the horizontal rod is fixed on the plate Ⅰ. The beneficial effect of the present invention is that the planting direction of the micro-implant or the drilling direction of the drill rod can be quickly and accurately positioned.

Description

Micro-implant universal locator

technical field

The invention belongs to the technical field of micro-implant positioning, and in particular relates to a micro-implant universal locator.

Background technique

Micro-implant implantation is a commonly used tooth movement control technology in orthodontics. Micro-implants are implanted between the two roots of the upper and lower jaws to assist in retracting the anterior teeth, depressing the anterior teeth, and depressing the posterior teeth. However, in clinical operation, due to the very narrow interroot implantation area, it is difficult to grasp the accuracy of the micro-implant placement and the direction during the operation, which will bring the risk of damaging the root, periodontal ligament and even entering the maxillary sinus.

Previous studies have focused on how to accurately determine the implant point between the two roots, but there is no device for intraosseous implant orientation. The most primitive micro-implant positioning device is fixed on the bracket or arch wire with a ligature wire or a metal wire to take X-ray films of the root tip of the tooth for auxiliary positioning. This method is not only easy to shift during the filming process, resulting in positioning deviation and imprecise positioning, but also the important point is that the device cannot guide the implantation direction, and the clinical use rate is very low. Some scholars have successively developed positioning templates for micro-screw implantation. For example, the Chinese patent CN 201920924 U orthodontic micro-implant anchorage implantation positioning device, this method needs to make the patient's tooth model first, press the transparent braces on the model, after the position of the implant nail is designed, drill the corresponding position on the transparent braces holes to aid in positioning. This method is only suitable for patients who have not bonded to the bracket. In actual clinical work, micro-implantation screws are often used in orthodontic treatment. At this time, braces, buccal tubes and other appliances have been bonded to the tooth surface. Because the undercut around the bracket is too large, the transparent aligner cannot be fully inserted and is used to assist the implantation of implant screws. Also, the device cannot provide any guidance in the direction of implantation. This design has little effect on clinical work guidance.

In clinical work, doctors can easily determine the safe implantation point of the alveolar bone according to the CBCT image data of the patient's alveolar bone and the positioning device, but it is difficult to ensure that the implantation direction is always unbiased after entering the bone from the implantation point. Once deflected, the micro-implant can easily damage the periodontal ligament or root of the adjacent teeth, resulting in tooth loosening and other consequences. Therefore, how to ensure that the implantation direction of the micro-implant in the bone is not deflected is to ensure the stability of the micro-implant and the stability of the adjacent teeth. The first condition of weekly health.

Contents of the invention

In order to solve the problem that the existing auxiliary positioning method for micro-implant implantation cannot ensure that the implantation direction of the micro-implant is not deflected in the bone, the present invention provides a micro-implant universal locator.

The present invention adopts following technical scheme to realize:

A micro-implant universal positioning instrument, characterized in that it includes an angle adjustment rod, a height adjustment rod, and a horizontal adjustment mechanism. The horizontal adjustment mechanism includes plate I, plate II, plate III, guide rod I, guide rod II, The screw and the nut matched with the screw, the plate I, the plate II and the plate III are arranged in parallel, the plate I and the plate III are connected by two parallel guide rods I and II, and the plate II is set on the guide rod I and the guide rod II Above and can slide relative to the two rods, the screw rod passes through the plate III and the plate II is threaded, and the upper parts of the plate I and the plate II are respectively provided with pads, and the two pads are arranged on the same axis;

One end of the angle adjustment rod is a connection end, and the other end is inserted into the through hole on the height adjustment rod. The height adjustment rod has a positioning screw I arranged perpendicular to the angle adjustment rod. The other end of the height adjustment rod is inserted into the horizontal rod, and the horizontal rod There is a positioning screw Ⅱ set perpendicular to the height adjustment rod, and one end of the horizontal rod is fixed on the plate Ⅰ.

The connecting end of the angle adjustment rod is connected with the drilling rod.

Or the connecting end of the angle adjustment rod is connected with the micro-implant insertion tube, and the micro-implant insertion tube is inserted into the micro-implant.

In the present invention, the device is placed in the corresponding area of the patient's alveolar bone through the horizontal adjustment mechanism, the micro-implant insertion tube is adjusted to the alveolar bone implantation site through the height adjustment rod, and the micro-implant at one end of the angle adjustment rod is adjusted by rotating the nut. The insertion nozzle of the implant is facing the implantation direction of the micro-implant. Due to the limitation of the short tube wall of the micro-implant, the implantation direction will not be deflected after the micro-implant enters the alveolar bone from the implantation point. According to the doctor's established The implantation angle is accurately implanted in the alveolar bone. In the past, after micro-implants entered from the implantation point, the implantation direction was easily deviated during the process of screwing into the bone, causing damage to the roots of adjacent teeth. Because the present invention accurately locates the implantation direction of the micro-implant in the bone through the angle adjustment rod, the height adjustment rod, and the horizontal adjustment mechanism, the occurrence of the above phenomenon is avoided, and the implantation direction of the micro-implant or the position of the drill rod can be quickly and accurately positioned. Drilling direction.

Description of drawings

Fig. 1 is a structural representation of the present invention,

Figure 2 is a side view of Figure 1,

Figure 3 is a top view of Figure 1,

In the figure: 1, plate Ⅰ, 2, plate Ⅱ, 3, plate Ⅲ, 4, guide rod Ⅰ, 5, guide rod Ⅱ, 6, screw rod, 7, nut, 8, spacer, 9, angle adjustment rod, 10. Height adjustment rod, 11. Horizontal rod, 12. Positioning screw Ⅰ, 13. Positioning screw Ⅱ, 14 Micro-implant insertion tube.

Detailed ways

The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

The micro-implant universal locator is characterized in that it includes an angle adjustment rod, a height adjustment rod, and a horizontal adjustment mechanism. The horizontal adjustment mechanism includes a plate I1, a plate II2, a plate III3, a guide rod I4, a guide rod II5, and a screw rod. 6 and the nut 7 matched with the screw rod 6, the plate Ⅰ1, the plate Ⅱ2 and the plate Ⅲ3 are arranged in parallel, the plate Ⅰ1 and the plate Ⅲ3 are connected by two parallel guide rods Ⅰ4 and Ⅱ5, and the plate Ⅱ2 is set on the guide rod Ⅰ4 and the guide rod Above Ⅱ5 and able to slide relative to the two rods, the screw 6 passes through the plate Ⅲ3 and is threadedly matched with the plate Ⅱ2, the upper part of the plate Ⅰ1 and the plate Ⅱ2 are respectively provided with pads 8, and the two pads 8 are arranged on the same axis;

One end of the angle adjustment rod 9 is a connection end, and the other end is inserted into the through hole on the height adjustment rod 10. The height adjustment rod 10 has a positioning screw I12 arranged perpendicular to the angle adjustment rod 9, and the other end of the height adjustment rod 10 is inserted into the Horizontal bar 11, the positioning screw II 13 that is arranged perpendicular to the height adjustment bar 10 is arranged on the horizontal bar 11, and one end of the horizontal bar 11 is fixed on the plate I1.

The connecting end of the angle adjustment rod is connected with the drilling rod. The connecting end of the angle adjustment rod is connected with the micro implant insertion tube, and the nozzle of the micro implant insertion tube is inserted into the micro implant.

In clinical use: the first step is to place a section of the device with an angle adjustment rod on the buccal side of the alveolar bone, and by rotating the nut, the plate II slides along the guide rod I and the guide rod II, and together with the plate I, the present invention is placed Around the alveolar base bone of the desired implant site, tighten the nut at this time to fix the invention at this position (the pads in the plate II and plate I avoid the discomfort caused by pressing the gums).

The second step is to adjust the height of the height adjustment rod 10. Rotate the nut 13 to position the height adjustment rod 10. At the same time, the angle adjustment rod can rotate horizontally around the height adjustment rod, so that the micro-implant insertion tube 14 is aligned with the pre-designed specific implant. In this step, the implantation point of the pre-set micro-implant is accurately positioned. (The micro-implant insertion point can be pre-determined based on the patient's CBCT image data).

The third step is the key to the operation. Determine the implantation direction of the micro-implant in the bone, rotate the angle adjustment rod 9 to make it rotate vertically around the height adjustment rod, and perform positioning by rotating the nut 12, so that it can be arbitrarily adjusted according to clinical needs. Adjust the direction of the micro-implant insertion tube to accurately orient the implantation direction. Due to the limitation of the insertion tube, it is ensured that the implantation direction of the micro-implant is not deflected after entering the alveolar bone from the implantation point, and the micro-implant is prevented from being It is difficult for the operator to control the deviation of the implantation direction, which can cause root damage to adjacent teeth.

Step 4 Insert the micro-implant from the micro-implant insertion nozzle toward the alveolar bone, and use the micro-implant implant handle to accurately implant the micro-implant along the direction of the insertion tube.

The angle adjustment rod can also be directly connected to the drill pipe.

Claims (3)

1. A micro-implant universal positioning instrument, characterized in that it includes an angle adjustment rod, a height adjustment rod, and a horizontal adjustment mechanism. The horizontal adjustment mechanism includes plate I (1), plate II (2), plate III ( 3), guide rod I (4), guide rod II (5), screw rod (6) and nut (7) matched with the screw rod (6), plate I (1), plate II (2) and plate III (3) Arranged in parallel, plate I (1) and plate III (3) are connected by two parallel guide rods I (4) and guide rod II (5), and plate II (2) is set on guide rod I (4) and The guide rod II (5) is above and can slide relative to the two rods, the screw rod (6) passes through the plate III (3) and is screwed with the plate II (2), and the upper parts of the plate I (1) and the plate II (2) are respectively set Pad block (8), two pads (8) are coaxially arranged; One end of the angle adjustment rod (9) is a connection end, and the other end is inserted into the through hole on the height adjustment rod (10). (12), the other end of the height adjustment rod (10) is inserted into the horizontal rod (11), and the horizontal rod (11) has a positioning screw II (13) set perpendicular to the height adjustment rod (10), and one end of the horizontal rod (11) is fixed On plate I (1). 2. The micro-implant universal locator according to claim 1, characterized in that the connecting end of the angle adjustment rod is connected to the drill rod. 3. micro-implant universal locator according to claim 1, is characterized in that the connecting end of angle adjustment rod connects micro-implant insertion tube (14), and micro-implant insertion tube (14) orifice inserts micro-implant .