CN106901848B

CN106901848B - Anchorage nail

Info

Publication number: CN106901848B
Application number: CN201710256283.XA
Authority: CN
Inventors: 徐明彩; 傅国; 梁品东; 郑鹏
Original assignee: Weihai Wego Jielikang Biological Material Co ltd
Current assignee: Weihai Wego Jielikang Biological Material Co ltd
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2022-08-23
Anticipated expiration: 2037-04-19
Also published as: CN106901848A

Abstract

The invention discloses an anchorage nail, which comprises an anchorage nail head part, an anchorage nail neck part and an anchorage nail thread part, wherein a universal sleeve is sleeved on the side of the anchorage nail neck part of the anchorage nail head part, a thread hole is radially arranged on the universal sleeve, a fastening screw of the universal sleeve can fix the universal sleeve and the anchorage nail head part together, and a rotating tool receiving part for receiving a tool to rotate the anchorage nail and the fastening screw of the universal sleeve is arranged at the head parts of the anchorage nail head part and the fastening screw of the universal sleeve. According to the invention, the anchorage wires can rotate 360 degrees on the horizontal plane vertical to the axial direction of the anchorage nail by rotating the universal sleeve, the anchorage wires can be positioned in any direction by penetrating through the universal sleeve threading holes, and the anchorage wires are locked by fastening screws through the universal sleeve, so that the purpose of anchorage orthodontics is realized. The anchorage screw can be used for drawing the same anchorage wire at the same time, and the anchorage screw can be used for orthodontics through resultant force, so that the implantation of the anchorage screw can avoid the limitation of a physiological structure, the stress dispersion is uniform, and a wider application range and a better orthodontics effect are provided for orthodontics.

Description

Anchorage nail

Technical Field

The invention belongs to the field of medical appliances, particularly relates to the technical field of tooth orthodontic appliances, and particularly relates to an anchorage nail.

Background

It is known that the anchorage pin has a simple structure, a small volume, and is convenient to implant and remove, does not need an intraoral or intraoral device, does not cause unnecessary movement of other teeth while serving as an anchorage, and is widely applied to orthodontic treatment. At present, the conventional anchorage nail used clinically comprises an anchorage nail head part, an anchorage nail neck part and an anchorage nail thread part, an anchorage wire is arranged at the head part or the neck part of the anchorage nail to carry out traction orthodontics, the direction of the anchorage wire can not be flexibly adjusted when the anchorage nail is screwed into the body of a patient, the anchorage mode of the anchorage nail is a single anchorage, and the stress of the anchorage nail is relatively concentrated. In the clinical use process, the orthodontic treatment fails because the orthodontic treatment is limited by the physiological structure of a human body and the anchorage nails cannot be implanted in some positions or the orthodontic treatment effect cannot be achieved after the anchorage nails are implanted. For example, in some cases, the anchorage pins are used as fixtures for moving teeth, and when the anchorage pins are applied to correction traction in cases with deviated tooth center lines or more missing teeth, if the actual implantation positions of the anchorage pins do not accord with the designed implantation positions, the situations of poor orthodontic effect and orthodontic failure occur; in some cases, the orthodontic anchorage nail needs to be designed and implanted to a position close to the tooth root in order to meet the requirement of orthodontic traction, or the orthodontic anchorage nail cannot be implanted at all due to the limitation of physiological structures, so that the side effect of implanting the anchorage nail and the cases of fracture of the anchorage nail often occur in clinic.

Disclosure of Invention

The invention aims to overcome the technical defects and provide an anchorage nail which can be combined by two or more pieces, and can solve the problem of orthodontic failure caused by physiological structure limitation and uneven stress of the conventional anchorage nail.

In order to achieve the above purpose, the invention adopts the following measures:

an anchorage nail comprises an anchorage nail head part, an anchorage nail neck part and an anchorage nail thread part and is characterized in that a universal sleeve is sleeved on the side of the anchorage nail neck part of the anchorage nail head part, thread holes are radially formed in the universal sleeve, the universal sleeve and the anchorage nail head part can be fixed together through universal sleeve fastening screws, and a rotating tool receiving part for receiving a tool to rotate the anchorage nail and the universal sleeve fastening screws is arranged at the anchorage nail head part and the head part of the universal sleeve fastening screws.

Preferably, the turning tool receiving portion of the anchor head is a hexagonal recess into which the cylindrical tip of the universal sleeve fastening screw is inserted, and the anchor wire inserted into the threading hole is pressed against the bottom of the hexagonal recess to lock the anchor wire in a zigzag shape.

Preferably, the turning tool receiving portion of the head of the gimbaled fastening screw is a hexagonal recess.

As a preferable mode, the threading hole is a round hole or a square hole.

Preferably, the last 2mm thread on the neck side of the anchorage screw thread part is subjected to implant treatment, so that the anchorage screw thread part is combined with the bone.

As an optimal mode, the anchorage nail universal sleeve is cuboid or cube-shaped, and a connecting channel is formed in the center of the anchorage nail universal sleeve, the front portion of the connecting channel is matched with the neck end and the head portion of the anchorage nail, threads are arranged on the rear portion of the connecting channel and matched with universal sleeve fastening screws, threading holes are formed in thread sections of the connecting channel, and four edges of the cuboid or cube, which are parallel to the axial direction of the anchorage nail, are chamfered to form a wrench clamping portion.

The anchorage nail is additionally provided with the universal sleeve and the universal sleeve fastening screw on the conventional anchorage nail structure, the anchorage wire can rotate 360 degrees on a horizontal plane vertical to the axial direction of the anchorage nail by rotating the universal sleeve, the anchorage wire can be positioned in any direction by penetrating through the universal sleeve threading hole, and the anchorage orthodontic aim is fulfilled by locking the universal sleeve fastening screw. Because two or more anchorage nails can be simultaneously applied to draw the same anchorage wire, the anchorage wire can be orthodontic by the combined force, so that the implantation of the anchorage nail can avoid the limitation of a physiological structure, the orthodontic stress can be reasonably dispersed, and the stability is enhanced. Overcomes the defect of single anchorage nail orthodontics, and provides wider application range and better orthodontics effect for anchorage nail orthodontics.

Drawings

Fig. 1 is a schematic structural view of an anchorage nail.

Fig. 2 is a structural schematic diagram of an anchorage nail without a universal sleeve, (a) a front view, (b) a sectional view, and (c) a right side view.

Fig. 3 is a schematic structural view of the universal sleeve, (a) a front view, (b) a sectional view, and (c) a right side view.

Fig. 4 is a schematic structural view of a gimbal fastening screw, (a) a front view, (b) a sectional view, and (c) a right side view.

The symbols in the figures illustrate: 1 anchorage nail, 11 anchorage nail thread part, 12 anchorage nail neck part, 13 anchorage nail head part and 14 hexagonal concave part; 2 universal sleeve, 21 threading hole, 22 connecting channel, 23 thread section and 24 spanner clamping part; 3 universal sleeve fastening screw, 31 head of the universal sleeve fastening screw, 32 bulges, 33 external threads and 34 hexagonal concave parts.

Detailed Description

The anchorage nail is improved on the basis of the existing anchorage nail structure, and is additionally provided with a universal sleeve 2 and a universal sleeve fastening screw 3 for locking the universal sleeve 2 and the anchorage nail 1. As shown in figure 1, the anchorage nail of the invention consists of an anchorage nail 1, a universal sleeve 2 and a universal sleeve locking screw 3. The structure of the anchorage nail 1 is as shown in fig. 2, the anchorage nail 1 includes an anchorage nail head 13, an anchorage nail neck 12 and an anchorage nail thread 11, a receiving tool is disposed on the anchorage nail head 13 to rotate the anchorage nail rotating tool receiving part, in this embodiment, the rotation tool receiving part of the anchorage nail head is a hexagonal recess 14, and the hexagonal screwdriver cooperates with the hexagonal recess 14 to rotate the anchorage nail 1 to tap into the human body implantation part. Preferably, the length L of the thread part of the anchorage nail is 6-10 mm, the diameter D of the thickest part of the thread part is 1.2-2.0 mm, and the 2mm thread on the 12 side of the neck part of the anchorage nail is subjected to implant treatment to be beneficial to combination with bones. The diameter and the length of the anchorage nail 1 can be adjusted according to actual needs.

The universal sleeve structure of the embodiment is as shown in fig. 3, the anchorage nail universal sleeve 2 is in a cuboid or square shape, a connecting channel 22 is formed in the center of the universal sleeve, the front portion of the connecting channel 22 is matched with the tail end of the anchorage nail neck portion 12 and the anchorage nail head portion 13, an internal thread is arranged at the rear portion of the connecting channel 22 and matched with the universal sleeve fastening screw 3, a threading hole 21 is formed in a threaded section 23 of the connecting channel, and four edges of the cuboid or square which are parallel to the anchorage nail in the axial direction are chamfered to form a wrench clamping portion 24. The threading hole 21 is a round hole or a square hole. The shape and size of the threading hole 21 are in accordance with the type of the anchorage wire.

The structure of the case fastening screw 3 of the present embodiment is shown in fig. 4, and the head 31 of the case fastening screw has a turning tool receiving portion for receiving a tool to turn the case fastening screw, the turning tool receiving portion being a hexagonal recess 34. The head 31 of the universal sleeve fastening screw is provided with a cylindrical or other protrusion 32 which can be inserted into the hexagonal recess 14 of the anchorage head, and the head 31 of the universal sleeve fastening screw is externally provided with an external thread 33 which is matched with the internal thread of the universal sleeve 2.

The anchorage nail is of a combined structure and consists of an anchorage nail 1, a universal sleeve 2 and a universal anchorage sleeve fastening screw 3, wherein the universal sleeve 2 is sleeved on the anchorage nail 1 in the implantation process, and the universal sleeve fastening screw 3 is separated from the anchorage nail 1 and the universal sleeve 2 for later use. The hexagonal screwdriver is inserted into the hexagonal concave part 14 of the anchorage nail head part and screwed into the oral cavity frontal alveolar bone in a conventional anchorage nail mode, and the anchorage wire has no anchorage stress limitation and only needs to consider implantation stability and avoid physiological structure limitation. The direction of the universal sleeve 2 is adjusted at any time as required in the process of screwing in the anchorage nail 1, so that the direction of the threading hole 21 is consistent with the preset position. When the anchorage nail 1 is screwed in and approaches to the anchorage nail neck 12, the rotation of the universal sleeve 2 is limited due to the action of human tissues and the anchorage nail head 13, and the wrench clamping part 24 of the universal sleeve can be clamped by a wrench to fix and finely adjust the direction of the universal sleeve 2. When the anchorage screw is implanted in place, the universal sleeve fastening screw 3 is inserted into the universal sleeve connecting channel 22, the hexagonal screwdriver is inserted into the hexagonal concave part 34 at the head of the universal sleeve fastening screw, the universal sleeve fastening screw 3 is rotated to move towards the head of the anchorage screw, the bulge 32 at the front end of the universal sleeve fastening screw is inserted into the hexagonal concave part 14 of the anchorage screw, and the anchorage screw penetrating into the wire penetrating hole 21 is extruded towards the bottom of the hexagonal concave part 14, so that the anchorage screw is locked in a zigzag manner, and the firmness of anchorage screw fixation is improved. Therefore, two or more anchorage nails are implanted according to the requirement, the anchorage wires are connected, the wire-hanging orthodontic treatment can be carried out at a proper position, the stress is dispersed, and the anchorage stability is increased by more than two times. The invention can meet the function that the existing single anchorage nail can not be realized clinically, and can also remove the universal sleeve 2 and the universal sleeve fastening screw 3 to apply the anchorage nail 1 by a single routine.

Claims

1. An anchorage nail comprises an anchorage nail head part, an anchorage nail neck part and an anchorage nail thread part, and is characterized in that a universal sleeve is sleeved on the side of the anchorage nail neck part of the anchorage nail head part, a thread hole is radially arranged on the universal sleeve, a connecting channel is formed in the center of the universal sleeve, the front part of the connecting channel is matched with the tail end of the anchorage nail neck part and the anchorage nail head part, threads are arranged on the rear part of the connecting channel and matched with a universal sleeve fastening screw, the universal sleeve fastening screw can fix the universal sleeve and the anchorage nail head part together, and a rotating tool receiving part for receiving a tool to rotate the anchorage nail and the universal sleeve fastening screw is arranged at the anchorage nail head part and the head part of the universal sleeve fastening screw; the rotating tool receiving part of the anchorage nail head part is a hexagonal concave part, the front end of the universal sleeve fastening screw is inserted into the hexagonal concave part, and the anchorage wire penetrating through the wire penetrating hole is extruded towards the bottom of the hexagonal concave part to lock the anchorage wire in a zigzag manner; the wire penetrating hole is a round hole or a square hole; the length L of the thread part of the anchorage screw is 6-10 mm, and the diameter D of the thickest part of the thread part is 1.2-2.0 mm.

2. The anchorage nail according to claim 1, wherein the turning tool receiving portion of the head of the universal sleeve fastening screw is a hexagonal recess.

3. The anchorage nail according to claim 1, wherein 2mm threads on the neck side of the anchorage nail thread portion are processed by an implant to facilitate bonding with bone.

4. The anchorage nail according to claim 1, wherein the universal sleeve is a rectangular or square body, the threading hole is provided in the threaded section of the connection channel, and four edges of the rectangular or square body axially parallel to the anchorage nail are chamfered to form a wrench holding portion.