DENTAL TRACTION DEVICE

A dental traction device comprises an extension main-body, a tractive-body, a blocking-stopping-body, and a seat-body. When using, the dental orthotics are firstly set and the dental correction archwire connection is set, and the bone nail is set at the gum; then, the seat-body is fixed on the dental correction archwire; one end of the elastic element is bypass the blocking-stopping-body to stick and engage on the tractive-body and the other end is stuck and engaged on the bone nail; then the blocking-stopping-body is cooperated with the tractive-body to fix the elastic element to avoid falling-off; and the contraction elastic force of the elastic element generates the pulling force to the dental correction archwire and the teeth by using the extension main-body as the force moment to produce the traction correction effect; and so as to achieve the practicality and progressiveness which is convenient in use and avoids falling-off.

(A) TECHNICAL FIELD OF THE INVENTION

The present invention provides a dental traction device, and especially relates to a dental traction device which is convenient in use and avoids falling-off.

(B) DESCRIPTION OF THE PRIOR ART

Generally, teeth can be regarded as a person's facade; when everyone talks to each other, if they see a pair of disorganized teeth, they will have an impact on people's first impression, and the first impression between people will often determine many key points. Therefore, modern people care about the care and cleanliness of their teeth.

The most common way to adjust the position and shape of teeth is to wear braces; where the braces are also divided into many kinds, and the more popular way is to use the traditional orthotic cooperating with the rope body to pull to gradually change the position of the teeth.

However, sometimes the teeth may be skewed or the spacing is too large, so that just using the traditional orthotic cooperating with the rope body to pull is not enough to correct; therefore the traditional tractor cooperating with the rubber band is added to adjust; but the traditional tractor has the defect which the rope body is easy to be loosen; therefore the industry has improved to develop the conventional tractor.

The conventional tractor includes a columnar-body, a base at the end of the columnar-body, and a round-hook-body at the other end of the columnar-body; which the rubber-band is hung on the round-hook-body to produce a traction effect;

However, the round-hook-body needs to be set in parallel with the teeth, and the opening needs to face away from the side of the rubber band to keep the rubber band from falling off; if the round-hook-body forms an angle with the teeth or the opening faces the rubber band, the rubber band is likely to fall off; therefore, it is necessary to make two styles, the left-hook and the right-hook; in addition to being more expensive, it is more troublesome to use.

SUMMARY OF THE INVENTION

The main purpose of the present invention is for convenient use.

The other main purpose of the present invention is for preventing from being slipped, loosen, and falling-off.

In order to achieve the above-mentioned objectives, the present invention comprises: at least one extension main-body; wherein at least one seat-body is defined at one end of the extension main-body, and at least one tractive-body is defined at the end of the extension main-body facing away from the seat-body; wherein the tractive-body and the extension main-body form at least one angle, and the end of the tractive-body facing away from the extension main-body defines at least one blocking-stopping-body; wherein the cross-sectional area of the blocking-stopping-body is larger than the cross-sectional area of tractive-body.

When the present invention is used, at least one dental orthotic is respectively set on the different teeth; and at least one dental correction archwire is fixed through the dental orthotic and at least one bone nail is set on the gum; then, the dental traction device is taken and the seat-body is fixed on the dental correction archwire; and the elastic element is taken to respectively fix its two ends on the bone nail and then is bypass the blocking-stopping-body to stick and engage on the tractive-body; at this time, since the tractive-body forms an angle with the extension main-body and the blocking-stopping-body has no directivity, the elastic element can be more easily and rapidly stuck and engaged; wherein the blocking-stopping-body can be cooperated with the tractive-body to block, stop the and fix elastic element to prevent from being slipped, loosen, and falling-off; and the elastic element will generate a pulling force through the elastic contraction to the tractive-body, which the pulling force is towards the bone nail, and the extension main-body is used as the force moment to apply the pulling force to the dental correction archwire, each dental orthotic, and each tooth to produce the traction correction effect. With the above-mentioned technology, the present invention can break through the problems of expensive cost and troublesome use of the conventional tractor, and so as to achieve the practicality and progressiveness which is convenient in use and avoids falling-off.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The foregoing and other aspects, features, and utilities of the present invention will be best understood from the following detailed description of the preferred embodiments when read in conjunction with the accompanying drawings.

Please refer toFIG. 1andFIG. 2, which are the stereoscopic schematic diagram and the side-view schematic diagram of the preferred embodiment of the present invention; it can be clearly seen from the figures that the dental traction device1of the present invention comprises: at least one extension main-body11, at least one tractive-body12, at least one blocking-stopping-body13, and at least one seat-body14; wherein the material of the dental traction device1comprises one of metal, ceramic, or plastic, and the tractive-body12is defined at one end of the extension main-body11; wherein the extended center-line of the tractive-body12and the extended center-line of the extension main-body11form at least one angle θ; in the figure, the angle θ is 90 degrees as an example to explain, and the extension main-body11adjacent to the end of the tractive-body12defines at least one guiding-portion111.

The blocking-stopping-body13is one of a circular type, an elliptical type, a semi-circular type, a long-strip type, or a polygonal type; in the embodiment, the blocking-stopping-body13is a circular type as an example to explain; wherein the blocking-stopping-body13is defined at the end of the tractive-body12facing away from the extension main-body11; wherein the cross-sectional area of the blocking-stopping-body13is larger than the cross-sectional area of the tractive-body12, so the tractive-body12and the blocking-stopping-body13have no directivity problem; and in the present embodiment, at least one plane-portion131is defined at the side of the blocking-stopping-body13adjacent to the tractive-body12.

The seat-body14is defined at the end of the extension main-body11facing away from the tractive-body12, and the seat-body14defines at least one accommodation-portion141; wherein the above-mentioned is only one implementation type of the present invention, and the type thereof is not limited thereto.

Please simultaneously refer toFIG. 1toFIG. 6, which are the stereoscopic schematic diagram, side-view schematic diagram, setting schematic diagram, sticking-engaging schematic diagram, traction schematic diagram, and correction schematic diagram of the preferred embodiment of the present invention; and please refer toFIG. 3, it can be clearly seen from the figure that when the present invention is to be used; at least one bone nail5is first placed on the gum, and at least one dental orthotic4is respectively set on different tooth; and at least one dental correction archwire3is connected with each dental orthotic4, and at least one dental traction device1is set on the dental correction archwire3; in the figure, the upper and lower rows of teeth are respectively set with a plurality of dental orthotics4, a dental correction archwire3, a bone nail5, and a dental traction device1as an example to explain; because the bone nail5, the dental orthotics4, and the dental correction archwire3are well-known technologies in the industry, so they will not be further described here.

At this time, the dental traction device1will accommodate the dental correction archwire3through the accommodation-portion141of the seat-body14to achieve the indirect connection with the tooth as shown inFIG. 4; then, at least one elastic element2is taken, which the elastic element2is one of an elastic rubber ring or a spring, and the elastic rubber ring is used as an example to explain in the figure; which the two ends of the elastic element2are respectively stuck and engaged on the bone nail5, and it can be stuck and engaged on the tractive-body12after bypassing the blocking-stopping-body13, so the use is quite fast and convenient.

At this time, the effect of guiding the elastic member2is generated by the structural design of the guiding-portion111, which makes the sticking-engaging more easy and convenient; since the extending center-line of the tractive-body12forms at least one angle θ with the extended center-line of the extension main-body11and the cross-sectional area of the blocking-stopping-body13is larger than which of the tractive-body12, the tractive-body12and the blocking-stopping-body13have no directivity problem; the dental traction device1can be freely placed on the left or right side of the bone nail5; which the blocking-stopping-body13can avoid the teeth by the bending concept of the angle θ of the tractive-body12; and the blocking-stopping-body13can cooperate with the tractive-body12to block and stop the elastic element2through the large-area blocking-stopping concept; thereby generating a fixing effect to avoid being loosen and fallen off; and the plane-portion131is used to block and stop the elastic element2to reduce the loosen and fallen-off probability.

Please simultaneously refer toFIG. 5andFIG. 6; since the bone nail5is fixed to the gum, the elastic force caused by the contraction of the elastic element2will apply force to the dental correction archwire3through the tractive-body12, the extension main-body11, and the seat-body14; and is transmitted to each of the teeth via each of the dental orthotic4to generate a pulling force to the teeth toward the direction of the bone nail5; and at the same time, since the elastic element2is stuck and engaged on the guiding-portion111; when the elastic element2transmits the pulling force, the seat-body14is as the circle-center and the extension main-body11is as the axis to generate a status of force moment to improve the traction effect and correction effect of the tooth, which the tooth is displaced and closed to each other.

Please simultaneously refer toFIG. 7, which is the implementation schematic diagram of another preferred embodiment of the present invention; it can be clearly seen from the figure that this embodiment is almost the same with the above embodiment; the difference is that in the present embodiment, the blocking-stopping-body13ais embodied in a polygonal type (quadrilateral type) to explain the freedom and variety of the present invention.

Therefore, the key of the dental traction device of the present invention to improve the conventional technology is lied in that:1. Through the cooperation of the extension main-body11, the tractive-body12, the blocking-stopping-body13, and the seat-body14; the present invention achieves the practicality and progressiveness which is convenient in use and avoids falling-off.2. Through the cooperation of the extension main-body11, the tractive-body12, the blocking-stopping-body13, and the seat-body14; the present invention achieves the practicality and progressiveness which generates a force moment to improve the effect of the tooth displacement, which the tooth is closed to each other.