CN215458817U

CN215458817U - Anchorage nail assembly draw hook

Info

Publication number: CN215458817U
Application number: CN202121556792.2U
Authority: CN
Inventors: 胡毅; 王建均; 董小娟
Original assignee: ZHEJIANG PROTECT MEDICAL EQUIPMENT CO Ltd
Current assignee: Zhejiang Pute Medical Instrument Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2022-01-11
Anticipated expiration: 2031-07-08

Abstract

The utility model belongs to the technical field of appliances for orthodontics, and particularly relates to an anchorage nail assembly traction hook. The utility model provides an anchorage nail assembly towing hook, includes the towing hook body, still including connecting at the terminal connecting rod of towing hook body, the connecting rod end still is connected with a gag lever post, the gag lever post can buckle with the connecting rod junction. The anchorage nail assembly traction hook can be firmly and flexibly assembled on the head part of the anchorage nail, and the anchorage nail traction problem under various conditions is conveniently realized.

Description

Anchorage nail assembly draw hook

Technical Field

The utility model belongs to the technical field of appliances for orthodontics, and particularly relates to an anchorage nail assembly traction hook.

Background

The anchorage nail is called bone nail for short, and is a temporary mini implant implanted into an alveolar bone. Because of its superior function and ease of implantation, it has become an increasingly popular aid in orthopedic treatment in recent years.

The anchorage pin functions to provide a fixed source of force to assist in pulling the teeth. The novel orthodontic appliance has good curative effect in the treatment of correcting the conditions of bruxism, gingival exposure smile, deep bite, excessive eruption of molar teeth, dentition needing to retreat and the like, can achieve the effect which is difficult to achieve by the traditional correction, and can also accelerate the moving speed of teeth.

However, in some cases, after the anchorage nail is implanted into the alveolar bone, the neck portion of the fixing hole or the anchorage nail is easily covered by the gum, and it is difficult for a doctor to perform traction.

Disclosure of Invention

The utility model aims to solve the problems and provides an anchorage nail assembly towing hook which can solve the technical problems. The anchorage nail assembly traction hook can be firmly and flexibly assembled on the head part of the anchorage nail, and the anchorage nail traction problem under various conditions is conveniently realized.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an anchorage nail assembly towing hook, includes the towing hook body, still including connecting at the terminal connecting rod of towing hook body, the connecting rod end still is connected with a gag lever post, the gag lever post can buckle with the connecting rod junction.

Above-mentioned anchorage nail assembles towing hook, connecting rod and towing hook body end connection department are provided with towards at least one centre gripping arm of connecting rod circumference extension, and centre gripping arm and connecting rod are acute angle contained angle.

Above-mentioned anchorage nail assembles towing pintle, the centre gripping arm is two centre gripping arms along connecting rod circumference extension.

The anchorage nail is assembled with the towing hook, the clamping arm comprises a clamping arm body, a first limiting surface is arranged on the clamping arm body, and the first limiting surface is matched with a clamped surface of the anchorage nail head.

The anchorage nail is assembled with the towing hook, and the tail end of the clamping arm body is also provided with a clamping convex block.

The anchorage nail is assembled with the towing hook, and a groove is formed in the intersection of the clamping convex block and the clamping arm body.

Above-mentioned anchorage nail assembly towing hook, two centre gripping arms and connecting rod junction are provided with a dog, the dog is horizontal on the connecting rod cross section of connecting rod and two centre gripping arm junctions, and two centre gripping arms extend to the both ends that the connecting rod was kept away from to the dog respectively.

The anchorage nail is assembled with the towing hook, and the stop block is positioned at the tail end of the towing hook body.

According to the anchorage nail assembling traction hook, the end face of the stop block connected with the connecting rod is a second limiting face, and the second limiting face is matched with the first limiting face for limiting.

Compared with the prior art, the utility model has the advantages that: the traction hook can be conveniently assembled on the head of the anchorage nail, is very convenient to disassemble, and can be flexibly disassembled according to requirements in clinical application.

The anchorage nail traction hook provided by the utility model has the advantages that the assembly structure is firm due to the fact that the anchorage nail traction hook is provided with the plurality of limiting structures, namely the limiting rods, the limiting surfaces and the like are matched in structure.

The anchorage nail traction hook can be arranged by matching with through holes at different positions of the head part of the anchorage nail. Therefore, the hook head of the traction hook can be properly adjusted in angle according to clinical practical conditions, and the traction requirement is met.

Drawings

FIG. 1 is a schematic view of the structure of an anchorage nail assembled towing hook provided by the utility model.

FIG. 2 is a schematic view of an assembly structure of the anchorage nail assembly towing hook and the anchorage nail provided by the utility model.

FIG. 3 is a schematic view of the FIG. 2 anchorage pin after the assembly of the towing hook and anchorage pin.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a sectional view of fig. 3.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in figure 1, the anchorage nail assembly draw hook comprises a draw hook body 1, a connecting rod 2 and a limiting rod 3, wherein the draw hook body 1 is provided with a hook head 11 and a hook head tail end 12, and the hook head tail end 12 is provided with a stop 4. Of course, in specific implementation, the stop 4 may not be provided, and the hook end 12 may be directly connected to the connecting rod 2. Only after the stop block 4 is arranged, the shape of the stop block can be set to be matched with the shape of the neck of the anchorage nail, and the limit is facilitated. The present embodiment is described in detail with a structure in which the stopper 4 is provided.

As shown in fig. 1, the end of the connecting rod 2 is further connected with a limiting rod 3, and the joint a of the limiting rod 3 and the connecting rod 2 can be bent to realize limiting. In specific implementation, the whole limiting rod 3 can be made of a flexible material, so that no matter how the anchorage nail is, the limiting rod 3 is bent after the connecting rod 2 enters the through hole of the head of the anchorage nail, as shown in fig. 3 and 4.

As shown in fig. 1, two clamping arms 5 extending circumferentially towards the connecting rod 2 are provided at the joint of the connecting rod 2 and the hook head end 12, but in specific implementation, only one clamping arm 5 may be provided, but the relative clamping force is weaker, but clamping can also be achieved. The clamp arm 5 includes a clamp arm body 51 and a clamp projection 52: the clamping lug 52 is positioned at the tail end of the clamping arm body 51, and the edge of the clamping lug 52 is arc-shaped; the clamping arm body 51 is provided with a first limiting surface 53, and the first limiting surface 53 is matched with a clamped surface B of the head part of the anchorage. The stop blocks 4 are positioned at the connecting positions of the two clamping arm bodies 51 and the connecting rod 2. As shown in fig. 1, the stopper 4 is connected to the hook tip 12 and spans the cross section of the connecting rod 2 where the connecting rod 2 is connected to the two clamp arm bodies 51. Which is equivalent to two clamping arms respectively extending at two ends of the block 4 far away from the connecting rod 2. The end face of the stop block 4 connected with the connecting rod 2 is a second limiting face, and the second limiting face is matched with a C face of the anchorage nail head, which is provided with a through hole 63. As shown in fig. 3 and 4, the two clamping arm bodies 51 are respectively provided with a first limiting surface 53, meanwhile, the end surface of the stop 4 connected with the connecting rod 2 is a second limiting surface, and the two first limiting surfaces 53 are combined with the second limiting surface to be respectively matched with the two clamped surfaces B of the anchorage nail head and the clamped surface C with the through hole one by one to realize further limiting and fixing. Meanwhile, the clamping projection 52 at the end of the clamping arm body 51 is further pressed on the surface connected with the clamped surface B after the limiting and fixing of the limiting surface. As shown in fig. 4, since the intersection of the clamped surface B and the adjacent surface has a convex included angle, the shape of the clamping protrusion 52 is just matched with the included angle, and the convex included angle is just clamped in the groove between the clamping protrusion 52 and the clamping arm body 51, so as to achieve further limiting.

When in use, the operation process is as follows: as shown in fig. 2, an anchorage pin 6 is taken, and the anchorage pin 6 has a head cap 62 and a head 61, and the anchorage pin head 61 is hexagonal. Of course, other shapes are possible in the specific implementation. If the hook is in other shapes, the included angle between the two clamping arm bodies of the towing hook and the connecting rod can be adjusted adaptively. Because the head part 61 of the anchorage nail is provided with a through hole 63, the connecting rod 2 of the anchorage nail assembly towing hook is inserted into the through hole 63 until the clamped surface C at the entrance of the through hole 63 and the second limiting surface are mutually abutted. Meanwhile, after the two clamping arm bodies 5 slide in along the clamped surface B and are completely matched with the clamped surface B, the corresponding two clamping lugs 52 are buckled at the intersection of the clamped surface B and the adjacent surface. Therefore, the anchorage nail assembly traction hook is assembled in place, and finally, the limiting rod 3 is bent for final limiting, so that the assembly is completed. The structure of the assembled structure is shown in fig. 4 and 5. When the anchorage nail assembled in this way is implanted, the neck of the anchorage nail can be conveniently pulled next step no matter whether the neck is covered.

When the anchorage nail is used specifically, through holes can be arranged at different positions of the head of the anchorage nail, and the anchorage nail assembling and pulling hook can be arranged at different angles of the anchorage nail through different through holes, so that the requirements of different angles in clinical application are met.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. The utility model provides an anchorage nail assembly towing hook, includes the towing hook body, its characterized in that still includes and connects at the terminal connecting rod of towing hook body, and the connecting rod end still is connected with a gag lever post, the gag lever post can buckle with the connecting rod junction.

2. The anchorage nail assembly towing hook according to claim 1, wherein at least one clamping arm extending towards the circumferential direction of the connecting rod is arranged at the joint of the connecting rod and the tail end of the towing hook body, and the clamping arm and the connecting rod form an acute included angle.

3. The anchorage pin-fitting towing hook according to claim 2, wherein the clamp arm is two clamp arms extending circumferentially along the connecting rod.

4. The anchorage pin assembly draw hook of claim 3, wherein the clamping arm comprises a clamping arm body having a first limiting surface thereon, the first limiting surface cooperating with a clamped surface of the anchorage pin head.

5. The anchorage nail assembly towing hook of claim 4, wherein the clamping arm body is further provided with a clamping lug at the distal end.

6. The anchorage nail assembly towing hook of claim 5, wherein a groove is provided at the intersection of the clamping lug and the clamping arm body.

7. The anchorage nail assembly towing hook of claim 4, wherein a stop is arranged at the connection part of the two clamping arms and the connecting rod, the stop is transversely arranged on the cross section of the connecting rod at the connection part of the connecting rod and the two clamping arms, and the two clamping arms respectively extend towards two ends of the stop far away from the connecting rod.

8. The anchorage nail assembly towing hook of claim 7, wherein the stop is located at a distal end of the towing hook body.

9. The anchorage nail assembly towing hook of claim 7 or 8, wherein the end surface of the stop block connected with the connecting rod is a second limiting surface.

10. The anchorage pin assembly towing hook according to claim 3, further comprising an anchorage pin, wherein the head of the anchorage pin is provided with a through hole, and the connecting rod is disposed in the through hole.