CN213156596U

CN213156596U - Orthodontic anchorage nail

Info

Publication number: CN213156596U
Application number: CN202021124416.1U
Authority: CN
Inventors: 聂志华
Original assignee: Shanghai Yinqi Dental Technology Co ltd
Current assignee: Shanghai Yinqi Dental Technology Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-05-11
Anticipated expiration: 2030-06-17

Abstract

The utility model provides an orthodontic anchorage nail, its characterized in that: including anchorage nail head, anchorage nail neck and anchorage nail portion, be equipped with the fixed orifices between anchorage nail head and the anchorage nail neck, anchorage nail portion is along anchorage nail neck direction grow gradually, anchorage nail screw thread etc. divide into three grades, and anchorage nail portion tip screw thread interval diminishes along the anchorage nail neck gradually. This anchorage nail is because nail portion most advanced screw thread interval diminishes gradually along anchorage nail neck and nail portion grow gradually along anchorage nail neck direction, the effectual stability that improves anchorage nail, and simultaneously, the convex design of anchorage nail neck has reduced soft tissue food and has remained, has reduced the risk of infecting and droing.

Description

Orthodontic anchorage nail

Technical Field

The utility model relates to an orthodontic medical instrument field of oral cavity, specifically relates to an orthodontic anchorage nail.

Background

In orthodontic treatment, coordination between facial jaw, teeth and maxillofacial nerves and muscles is often regulated by orthodontic devices. The orthodontic implant anchorage is simple in structure, small in size, convenient to implant and remove, high in comfort level of patients, low in compliance requirements on the patients, and wide in clinical application.

At present, the existing implant anchorage nail is used as a supporting point or a connecting point in clinical application, the supporting point is used for applying orthodontic force when moving a tooth to a certain specified place, and the anchorage as the supporting point can be used as a fixing source for applying force to pull the tooth to be moved to a proper position without affecting other teeth. The connection point is used for rigidly fixing the anchorage nail and the tooth, stabilizing the tooth to prevent the tooth from moving or directly applying force to a single tooth. However, the existing anchorage nail structure does not have a cross-shaped groove and a fixing hole at the same time, so that the horizontal dislocation is easy to occur when the anchorage nail structure is used for applying force to move or is rigidly fixed as a single tooth.

In order to overcome prior art not enough, the utility model provides an it is just abnormal with anchorage nail, the convenient planting, the practicality is strong, and anchorage nail neck hexagonal design and screw thread interval diminish the design gradually along the anchorage nail neck, and it is accurate to link up with bone tissue, improve the stability of planting anchorage nail, can stabilize the operation and reduce anchorage nail dropout rate.

SUMMERY OF THE UTILITY MODEL

The utility model provides a following technical scheme:

an anchorage pin for orthodontics, which is characterized in that: including anchorage nail head, anchorage nail neck and anchorage nail portion, be equipped with the fixed orifices between anchorage nail head and the anchorage nail neck, anchorage nail portion is along anchorage nail neck direction grow gradually, anchorage nail screw thread etc. divide into three grades, and anchorage nail portion tip screw thread interval diminishes along the anchorage nail neck gradually.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the top end of the head part of the anchorage nail is a cross-shaped groove.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the top end of the head part of the anchorage nail is a cross-shaped groove or a triangular groove, the width of the cross-shaped groove or the triangular groove is 0.5mm-0.6mm, and the depth of the cross-shaped groove or the triangular groove is 0.6mm-0.8 mm.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the diameter of the fixing hole between the head part of the anchorage nail and the neck part of the anchorage nail is 0.5 mm.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the position of the fixing hole is below the cross-shaped groove or below the 45-degree position of the cross-shaped groove.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that:

the neck of the anchorage nail is hexagonal.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the part of the neck of the anchorage nail connected with the anchorage nail is arc-shaped.

Further, the utility model provides a pair of just abnormal anchorage nail of using of tooth, its still characterized in that: the tail end of the anchorage nail part is reduced to form a tip, a tip undercut is arranged at the tip, the height of the tip undercut is 3.5mm, the depth of the tip undercut is 0.35mm, and the width of the tip undercut is 0.3 mm.

Drawings

Fig. 1 is a schematic perspective view of an anchorage pin for orthodontic treatment.

Fig. 2 is a top view of an orthodontic anchorage pin.

Fig. 3 is a front view of an anchorage pin for orthodontic treatment.

Fig. 4 is a front view of an anchorage pin fixing hole for orthodontic treatment, under a cross-shaped groove at 45 degrees.

Icon: 10-anchorage nail head; 20-anchorage nail neck; 30-anchorage nail portion; 40-cross-shaped grooves; 50-fixation hole, 60-tip undercut.

Detailed Description

As shown in fig. 1 and fig. 2, the embodiment provides an anchorage screw for orthodontics, including an anchorage screw head 10, an anchorage screw neck 20 and an anchorage screw head 30, a fixing hole 50 is provided between the anchorage screw head 10 and the anchorage screw neck 20, the anchorage screw head 30 gradually increases along the direction of the anchorage screw neck 20, the anchorage screw thread is equally divided into three stages, and the pitch of the tip thread of the anchorage screw head 30 gradually decreases along the anchorage screw neck 20.

In this embodiment, the pitch of the screw thread at the tip of the anchorage pin part 30 becomes smaller gradually along the anchorage pin neck part 20, the pitch of the screw thread of the anchorage pin part 30 becomes larger gradually along the direction of the anchorage pin neck part 20, and the pitch of the screw thread becomes smaller gradually and the pitch of the anchorage pin part 30 becomes larger gradually along the direction of the anchorage pin neck part 20, so that the anchorage pin becomes tighter when being implanted into the alveolar bone.

In this embodiment, the top end of the anchorage nail head 10 is a cross-shaped groove 40; the width of the cross-shaped groove 40 is 0.5mm-0.6mm, and the depth is 0.6mm-0.8 mm. The cross-shaped groove 40 can accommodate the size of a conventional bracket steel wire, and the steel wire can be arranged in the cross-shaped groove 40 by matching the angle or bending radian, so that the vertical stress application and rigid fixation between the anchorage nail and the tooth are realized.

The diameter of the fixing hole 50 between the anchorage nail head 10 and the anchorage nail neck 20 is 0.5mm, and a steel wire can penetrate into the fixing hole 50 to be ligated, so that the steel wire can be prevented from horizontal dislocation.

As shown in fig. 3 and 4, the position of the fixing hole is below the cross-shaped groove 40 or below the 45-degree position of the cross-shaped groove 40.

The neck 20 of the anchorage nail is hexagonal, so that better stress is facilitated during operation.

The connection part of the anchorage pin neck part 20 and the anchorage pin part 30 is arc-shaped, when the anchorage pin part 20 is implanted into the alveolar bone, the arc-shaped design of the smooth anchorage pin neck part 20 can reduce food residue at soft tissues, and avoid inflammation caused by infection and anchorage pin falling off.

The terminal formation pointed end that reduces of anchorage nail portion, and pointed end department is equipped with sharp end undercut 60, and sharp end undercut 60 is highly for 3.5mm, and the degree of depth is 0.35mm, and the width is 0.3mm, and when anchorage nail operation was implanted, anchorage nail pointed end passed through top layer cortex lycii or cortex lycii and soft tissue entering cancellous bone, and the chip removal can be carried out when anchorage nail is implanted to sharp end undercut 60, avoids the bone bits to pile up.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims

1. An anchorage pin for orthodontics, which is characterized in that: including anchorage nail head, anchorage nail neck and anchorage nail portion, be equipped with the fixed orifices between anchorage nail head and the anchorage nail neck, anchorage nail portion is along anchorage nail neck direction grow gradually, anchorage nail screw thread etc. divide into three grades, and anchorage nail portion tip screw thread interval diminishes along the anchorage nail neck gradually.

2. The orthodontic anchorage pin according to claim 1, wherein:

the top end of the head part of the anchorage nail is a cross-shaped groove.

3. The orthodontic anchorage pin according to claim 1, wherein:

the top end of the head part of the anchorage nail is a cross-shaped groove with the width of 0.5mm-0.6mm and the depth of 0.6mm-0.8 mm.

4. The orthodontic anchorage pin according to claim 1, wherein:

the diameter of the fixing hole between the head part of the anchorage nail and the neck part of the anchorage nail is 0.5 mm.

5. The orthodontic anchorage pin according to claim 1, wherein:

the position of the fixing hole is below the cross-shaped groove or below the 45-degree position of the cross-shaped groove.

6. The orthodontic anchorage pin according to claim 1, wherein:

the neck of the anchorage nail is hexagonal.

7. The orthodontic anchorage pin according to claim 1, wherein:

the part of the neck of the anchorage nail connected with the anchorage nail is arc-shaped.

8. The orthodontic anchorage pin according to claim 1, wherein:

the tail end of the anchorage nail part is reduced to form a tip, a tip undercut is arranged at the tip, the height of the tip undercut is 3.5mm, the depth of the tip undercut is 0.35mm, and the width of the tip undercut is 0.3 mm.