CN201719395U

CN201719395U - Free-hook clamp

Info

Publication number: CN201719395U
Application number: CN2010202715203U
Authority: CN
Inventors: 张正朴; 杨一民; 石玉珠; 李共娥
Original assignee: Hangzhou Orj Medical Instrument & Material Co Ltd
Current assignee: Hangzhou Orj Medical Instrument & Material Co Ltd
Priority date: 2010-07-26
Filing date: 2010-07-26
Publication date: 2011-01-26
Anticipated expiration: 2020-07-26

Abstract

The utility model discloses a free-hook clamp, comprising a first clamp body and a second clamp body which are articulated with each other, wherein two pressing platforms are arranged on the first clamp body; a concave groove of a hook part, which is capable of containing a free hook, is formed between the two pressing platforms; two tip convexes clamped with the pressing platforms in matching manner is arranged on the second clamp body, and two tip convexes correspond to the positions of the two pressing platforms of the first clamp body one to one. The technical proposal in the utility model adopts four-point clamping manner (clamping action points are actually in the line shape). As the upper and lower parts of the clamp part of the free hook have supports, an orthodontic arch wire cannot produce bending deformation, thereby the reliable clamping and fixing and normal traction use of the fee hook is ensured, the deformation of the orthodontic arch wire caused by the original three-point malposed clamp manner is also avoided, so as to avoid affecting the orthodontic effect.

Description

A kind of free hook clamping clip

Technical field

This utility model relates to a kind of tooth section orthodontic therapy technology, relates in particular to a kind of being exclusively used in be fixedly clamped free hook clamping clip on arch wire of free hook.

Background technology

Free hook (claiming free drag hook, free hook again) is a kind of adnexa that tooth section orthodontic therapy is used that is specifically designed to, as shown in Figure 1 and Figure 2, it comprises that a hook portion 51 that is used to connect traction apparatus and one can the clamping section 52 of clamping and positioning on the orthodontic therapy arch wire, and this clamping section 52 has one and can be complementary with the arch wire cross section when clamping and the clip slot 53 of clamping and positioning.During use, by free hook clamping clip it is fixedly clamped on the orthodontic therapy arch wire, and extension elastic ring or other elastic traction device in its drag hook portion, the other end of elastic component lies on other just abnormal parts, on bracket or buccal tube drag hook, perhaps just abnormal anchorage nails on etc., thereby reaches that tooth moves or orthodontic therapy purpose such as intermaxillary traction.

In the prior art, free hook clamping clip as shown in Figure 3, Figure 4, comprise first caliper 1 and second caliper 2 that are hinged by jointed shaft 3, the head end of first caliper 1 is provided with two and presents a theatrical performance as the last item on a programme 13, present a theatrical performance as the last item on a programme for two and form the groove 12 of the hook portion 51 that can hold free hook 5 between 13, the tail end of first caliper 1 connects handle 11, the head end of second caliper 2 is provided with and can 13 cooperates a point protruding 22 that clamps with described presenting a theatrical performance as the last item on a programme, this point protruding 22 is corresponding with groove 12 positions of first caliper 1, and the tail end of second caliper 2 connects handle 21.It clamps principle as shown in Figure 5, but, because what adopt is the clamping mode that misplaces up and down, so when clamping, can make orthodontic therapy arch wire 4 clamp position formation bending distortion to a certain degree in dislocation, and the orthodontic therapy arch wire is to finalize the design according to the needs of rescuing, in case when being fixedly clamped free hook, produce the change that the bending distortion can cause the traction angle and the pull strength of arch wire, influence the orthodontic therapy effect.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this utility model provides a kind of free hook clamping clip, adopt 4 clamping modes, fixing and the normal traction of reliable grip that has not only guaranteed free hook uses, thereby and the arch wire bending distortion of rescuing of having avoided 3 dislocation clamping modes to cause influence the orthodontic therapy effect.

To achieve the above object, this utility model has adopted following technical scheme:

A kind of free hook clamping clip, comprise first caliper and second caliper that are hinged, first caliper is provided with two and presents a theatrical performance as the last item on a programme, two grooves that form the hook portion to hold free hook between presenting a theatrical performance as the last item on a programme, described second caliper is provided with and can cooperates two points that clamp protruding with described presenting a theatrical performance as the last item on a programme, and protruding two positions of presenting a theatrical performance as the last item on a programme with first caliper of these two points are corresponding one by one.

As preferably, described present a theatrical performance as the last item on a programme and groove is arranged on the head end of first caliper, the tail end of first caliper connects handle, the protruding head end that is arranged on second caliper of described point, the tail end of second caliper connects handle.

As preferably, after described first caliper and second caliper close up, corresponding present a theatrical performance as the last item on a programme and still there is the gap in point between protruding.Can guarantee like this to present a theatrical performance as the last item on a programme and protruding each position of point can both stepless action in the clamping section of free hook clamping clip, make it closely contact strong bonded with the orthodontic therapy arch wire.

As preferably, described gap is 1 to 3 times of arch wire line footpath.

As preferably, described point is protruding to be triangle rib shape projection, and two sides of this triangle rib shape projection are 40 °～120 ° angle.Can guarantee like this to clamp firmly effectively.

This utility model is owing to adopted above technical scheme, adopt 4 clamping modes (the clamping action point is actually wire), because support all arranged up and down in the clamping section of free hook, so the orthodontic therapy arch wire can not produce the bending distortion, fixing and the normal traction of reliable grip that has so not only guaranteed free hook is used, thereby and the arch wire distortion of rescuing of having avoided original 3 dislocation clamping modes to cause influence the orthodontic therapy effect.

Description of drawings

Fig. 1 is the structural representation of free hook;

Fig. 2 is the right view of Fig. 1;

Fig. 3 is the structural representation of free hook clamping clip of the prior art;

Fig. 4 is the A portion enlarged drawing among Fig. 3;

Fig. 5 is the clamping schematic diagram of free hook clamping clip of the prior art;

Fig. 6 is a clamping schematic diagram of the present utility model;

Fig. 7 is a structural representation of the present utility model;

Fig. 8 is the B portion enlarged drawing among Fig. 7.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.

Embodiment 1:

As Fig. 7, a kind of free hook clamping clip shown in Figure 8, comprise first caliper 1 and second caliper 2 that are hinged by jointed shaft 3, the head end of first caliper 1 is provided with two and presents a theatrical performance as the last item on a programme 13, present a theatrical performance as the last item on a programme for two and form the groove 12 of the hook portion 51 that can hold free hook 5 between 13, the tail end of first caliper 1 connects handle 11, the head end of described second caliper 2 is provided with and can 13 cooperates two points protruding 22 that clamp with described presenting a theatrical performance as the last item on a programme, these two points protruding 22 are corresponding one by one with 13 positions of presenting a theatrical performance as the last item on a programme of first caliper 1, and the tail end of second caliper 2 connects handle 21.After described first caliper 1 and second caliper 2 closed up, still there was the gap in corresponding presenting a theatrical performance as the last item on a programme between 13 and sharp protruding 22, and this gap and arch wire line footpath are similar.Described point protruding 22 is a triangle rib shape projection, and two sides of this triangle rib shape projection are 80 ° angle, is triangle rib shape projection.

Be fixedly clamped as described in Figure 6, arch wire 4 passes the clip slot 53 of free hook 5, after free hook 5 determined in the position on the arch wire 4, put it in the jaw of this utility model head end, the hook portion 51 of free hook 5 is put into

groove

12,13 and corresponding with it sharp protruding 22 clamping sections 52 that clamp the hook 5 that dissociates of presenting a theatrical performance as the last item on a programme make clip slot 53 close up and the arch wire clamping and positioning that is complementary.

Claims

1. free hook clamping clip, comprise first caliper (1) and second caliper (2) that are hinged, first caliper (1) is provided with two present a theatrical performance as the last item on a programme (13), present a theatrical performance as the last item on a programme for two and form the groove (12) of the hook portion (51) that can hold free hook (5) between (13), it is characterized in that, described second caliper (2) is provided with and can cooperates two points protruding (22) that clamp with described presenting a theatrical performance as the last item on a programme (13), and these two points protruding (22) are corresponding one by one with two (13) positions of presenting a theatrical performance as the last item on a programme of first caliper (1).

2. a kind of free hook clamping clip according to claim 1, it is characterized in that, described presenting a theatrical performance as the last item on a programme (13) and groove (12) are arranged on the head end of first caliper (1), the tail end of first caliper (1) is connected with handle, described point protruding (22) is arranged on the head end of second caliper (2), and the tail end of second caliper (2) is connected with handle.

3. a kind of free hook clamping clip according to claim 1 and 2 is characterized in that, after described first caliper (1) and second caliper (2) close up, still has the gap between corresponding presenting a theatrical performance as the last item on a programme (13) and the point protruding (22).

4. a kind of free hook clamping clip according to claim 3 is characterized in that, described gap is 1 to 3 times of arch wire line footpath.

5. a kind of free hook clamping clip according to claim 4 is characterized in that, described point protruding (22) is a triangle rib shape projection, and two sides of this triangle rib shape projection are 40 °～120 ° angle.