KR101838678B1 - Instrument for exfoliation of periodontal ligament using ultrasonics wave - Google Patents

Abstract

The present invention relates to an apparatus for exfoliation of periodontal ligament using ultrasonic waves, and more particularly, to an apparatus for exfoliation of periodontal ligament using ultrasonic waves, which is operated by ultrasonic vibration to cut the periodontal ligament during implanting after tooth extraction or general tooth extraction to exfoliate tooth from the periodontal ligament. The apparatus for exfoliation of periodontal ligament using ultrasonic waves according to the present invention comprises: a controller for generating an ultrasonic wave approval signal and controlling driving of a handpiece; a handpiece for receiving ultrasonic waves from the controller and generating micro mechanical vibrations using the ultrasonic waves; a coupling unit coupled in a thread manner to be coupled to or uncoupled from a distal end of the handpiece; and a cutting tip made of a flexible material extending from the coupling unit and inserted between alveolar bones, and approaching a root of the tooth to cut the periodontal ligament.

Description

[0001] The present invention relates to an instrument for exfoliation of periodontal ligament using ultrasound wave,

The present invention relates to a periodontal ligament dissection apparatus using ultrasound, and more particularly, to an apparatus for periodontal ligament dissection using ultrasound, which is operated by ultrasonic vibration to cut periodontal ligament during the extraction or general extraction, .

Generally, the root portion of the tooth is inserted into the alveolar bone, and the periodontal ligament between the root portion and the tooth is connected to the alveolar bone. The shape of the tooth is divided into anterior and posterior teeth irrespective of the tooth or permanent tooth.

The periodontal ligament plays a supporting role by forming a strong fibrous bond between the cementum and the alveolar bone in the primary fibers attached to the teeth and peripheral alveolar bone. Also, the tissue fluid in the periodontal ligament will buffer the pressure applied to the tooth.

On the other hand, surgery is performed according to the tooth condition such as severe dental caries, dimensional necrosis, severe periodontal disease (gum disease, taste), orthodontic treatment, cracked tooth, prosthetic treatment,

Conventionally, teeth were forcibly extracted using surgical instruments such as forceps and elevators during extraction surgery, but the periodontal ligaments around the teeth remained intact, making it difficult to perform forced extraction.

Recently, there has been developed a peeling apparatus for separating the periodontal ligament surrounding the teeth to separate the tooth and the periodontal ligament from each other to facilitate extraction.

As an example of such a technique, Patent No. 10-1490461 discloses a dental treatment tip having a cutting and cutting function.

The dental treatment tip having the cutting and cutting function is provided with a connecting portion having one end joined and detachably coupled to the procedure holder and having a sanitary water flow pipe formed therein; A blade whose other end is formed into a semicircular shape and has a blade shape; And a cutting part for cutting the alveolar bone is formed on a surface facing the alveolar bone, and a treatment part is formed on one side of the cutting part for connecting the blade to the blade. The connection part, the blade and the treatment part are integrally formed.

In the conventional technique, a periodontal ligament is cut using a dental treatment tip having a cutting and cutting function to remove a damaged tooth that can not be picked up with a forceps, and the alveolar bone near the cut periodontal ligament is polished. Then, when the periodontal ligament and the alveolar bone are cut and cut with both sides of the damaged tooth, the damaged tooth is pushed up using the elevator and forced out by the forceps.

However, since the conventional technique configured as described above is performed by cutting the periodontal ligament while striking the operation tip with the dental hammer, it can be used for the extraction operation of the anterior portion where the hammer can be hit by the dental hammer, There is a problem that it can not be used at the time of extraction surgery.

In addition, in the conventional hammer striking method, not only is it not easy to perform an extraction operation even if a professional dentist is a patient, but also a patient is discomforted due to vibration transmitted by a hammer blowing during a surgical procedure.

KR 10-1490461 B1 (Registered on January 30, 2015)

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a flexible type cutting tool capable of effectively transmitting vibrations generated by ultrasonic waves to a cutting tip of a flexible type, It is an object of the present invention to provide an apparatus for removing periodontal ligaments using an ultrasonic wave, which is capable of separating the periodontal ligaments from each other and peeling the periodontal ligaments from each other and easily realizing an extraction operation of the internal part of the tooth.

In addition, since the use of a dental hammer and an elevator used in a conventional extraction surgery is omitted, a periodontal ligament exfoliation mechanism using an ultrasonic wave can be stably received without patient inconvenience as well as improving the extraction operation procedure .

According to an aspect of the present invention, there is provided a periodontal ligament dissection apparatus using ultrasonic waves, comprising: a controller for generating an ultrasonic wave application signal and controlling driving of a handpiece; A handpiece for generating ultrasonic mechanical vibrations by receiving ultrasound signals from the controller; An engaging portion threadably engaged with and detachable from the distal end of the handpiece; And a cutting tip formed of a flexible material extending from the coupling portion and inserted between the alveolar bone and approaching the tooth root and cutting the periodontal ligament.

In addition, the handpiece may include a body to be held by a user by hand; A coupling part coupled to one side of the body and having a circular groove for insertion of an end of the coupling part and having a male thread formed inside the groove so as to be coupled with the female thread of the coupling part; And a cable connected to the other side of the body and connected to the controller, and generates ultrasonic vibration in the range of 20 to 40kHz.

In addition, the cutting tip is formed to extend linearly at an end of the coupling portion, and has a gradually thinner thickness toward a distal end, and a plurality of teeth are formed on a side surface thereof.

In addition, the cutting tip may include an extension extending linearly at an end of the coupling portion; A bent portion that is bent and extends forward at an end portion of the extended portion; And a contact portion formed at an end portion of the bent portion so as to be inclined rearwardly to be bent and gradually thinner in thickness toward the front end portion and having a plurality of teeth formed on a side thereof.

The cutting tip is characterized by containing 43.65 to 44.45% by weight of titanium, 55.45 to 56.25% by weight of nickel, 0.015 to 0.1% by weight of oxygen, 0.001 to 0.005% by weight of hydrogen and 0.001 to 0.005% by weight of carbon.

As described above, the periodontal ligament peeling mechanism using ultrasonic waves according to the present invention allows the vibrations generated by the ultrasonic waves to be efficiently transmitted to the cutting tip of the flexible type, so that the cutting tip freely bends and approaches the tooth root It is very easy to break the periodontal ligament as much as possible, and the operation of extraction of the posterior part of the tooth is easy.

In addition, the ease of use can be improved to greatly improve the extraction operation procedure, greatly shorten the operation time, and provide the patient with stable operation without inconvenience.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a periodontal ligament peeling mechanism using ultrasonic waves according to the present invention. FIG.
2 shows a handpiece according to the present invention.
3 is a perspective view showing a cutting tip according to the present invention;
4 is a perspective view showing another example of a cutting tip according to the present invention.
5 is a view showing a use state of a cutting tip according to the present invention.
6 is a view showing another example of a periodontal ligament peeling mechanism using ultrasonic waves according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a perspective view of a handpiece according to the present invention, FIG. 3 is a perspective view illustrating a cutting tip according to the present invention, and FIG. FIG. 4 is a perspective view showing another example of the cutting tip according to the present invention, FIG. 5 is a view showing the use state of the cutting tip according to the present invention, FIG. 6 is a cross- And shows another example of the peeling mechanism.

As shown in FIG. 1, the periodontal ligament exfoliation mechanism using ultrasonic waves according to the present invention is operated by ultrasonic vibration to break the periodontal ligament at the time of post-extraction or general extraction, thereby separating the tooth and periodontal ligament from each other. 10, a handpiece 20, a coupling portion 30, and a cutting tip 40.

The controller 10 generates an ultrasonic wave application signal and controls driving of the handpiece 20. [

That is, the controller 10 supplies or blocks the ultrasound application signal applied to the handpiece 20.

The controller 10 outputs digital or analog signals, supplies power to control the ON / OFF signal, and controls the intensity of ultrasound applied signals and a warning light on the controller 10.

Meanwhile, in the present invention, it is possible to automatically control the intermittence related to the supply of the ultrasonic wave application signal by the controller 10, and the controller 10 can be operated by the sound of the patient who felt uncomfortable during the extraction operation The ultrasonic wave application signal can be quickly blocked.

In other words, a sound sensor module (not shown) is mounted on one side of the handpiece 20 to detect the sound of the surroundings using a microphone and output the sound as a digital signal. The sound detection sensor module detects the sound emitted by the patient during the extraction operation, compares the sound with the reference range value, and outputs the resultant value.

The result of the sound sensor module is output to the controller 10, and the controller 10 blocks the ultrasonic signal corresponding to the control signal according to the result.

Accordingly, by detecting the sound when the patient feels uncomfortable due to the pain in the extraction operation procedure, the ultrasonic vibration is quickly cut off, so that the patient can perform the extraction operation more safely.

As shown in FIG. 2, the handpiece 20 receives ultrasound application signals from the controller 10 to generate ultrasonic mechanical vibrations.

The handpiece 20 includes a body 21 to be hand-held by a user, a circular groove 221 to be inserted into one side of the body 21, and an end of the coupling portion 30 to be inserted A coupling part 22 in which a male screw 222 is formed inside the groove 221 to be coupled with a female screw 31 of the coupling part 30 and a coupling part 22 connected to the other side of the body 21, And a cable 23 connected to the cable.

Preferably, the body 21 is formed in a cylindrical shape so that the body 21 can be easily used in a state where the body 21 is grasped by a user, and the material is made of metal or synthetic resin.

A vibrating part (not shown) for ultrasonic vibration of the cutting tip 40 may be provided in the body 21. The vibrating part generates ultrasonic vibration and transmits the ultrasonic vibration to the cutting tip 40 .

Since the male screw 222 of the fastening part 22 and the female screw of the fastening part 30 are fastened to each other, various types of cutting tips 40 can be used.

On the other hand, the handpiece 20 generates vibration by using ultrasonic waves in the range of 20 to 40 kHz.

When the ultrasonic vibration frequency outputted from the handpiece 20 is less than 20 kHz, the ultrasonic vibration is too weak, so that it is difficult to cut the periodontal ligament due to the reduction of the hitting force by the cutting tip 40.

In addition, when the ultrasonic vibration frequency is more than 40 kHz, the ultrasonic vibration is too strong, so that the tissue surrounding the periodontal ligament may be damaged during the cutting process of the periodontal ligament.

As described above, since the use of the controller 10 and the handpiece 20 eliminates the use of the dental hammer and the elevator used in the conventional surgery for removing the periodontal ligament, And the patient can receive the operation stably without any inconvenience.

The engaging portion 30 is screwed to the distal end of the handpiece 20 so as to be engaged and detachable.

The cutting tip 40 is integrally formed on one side of the coupling portion 30 and is screwed to the male screw 222 formed on the fastening portion 22 of the handpiece 20 on the other side. 31 are formed.

The cutting tip 40 is formed of a flexible material so as to extend from the coupling portion 30 and inserted between the alveolar bone and approach the tooth root and cut the periodontal ligament.

That is, the cutting tip 40 is made of an alloy based on titanium and nickel so as to have flexibility. The cutting tip 40 comprises 43.65 to 44.45 wt% of titanium, 55.45 to 56.25 wt% of nickel, 0.015 to 0.1 wt% of oxygen, 0.001 to 0.005 wt %, Carbon 0.001 to 0.005% by weight.

The cutting tip 40 made of the above components can be freely bent as shown in FIG. 6, and is accessible to the root of the tooth, thus making it very easy to cut the periodontal ligament.

Meanwhile, the cutting tip 40 can be coupled to and detached from the handpiece 20 by the engaging portion 30, and thus various types of cutting tips 40 can be used.

As shown in FIG. 3, the cutting tip 40 is formed to be linearly extended at an end of the coupling portion 30, and is gradually thinner toward the distal end portion, and a plurality of teeth 41 are formed on the side surface thereof do.

The cutting tip 40 constructed as described above can be used both for an extraction operation of an anterior tooth portion and a posterior tooth portion. However, it is more preferable to use the cutting tip 40 in an extraction operation of an anterior portion in consideration of its shape.

4, the cutting tip 40 includes an extension portion 42 extending linearly at an end of the coupling portion 30, and an upper portion 42 extending forwardly from the end portion of the extension portion 42 And includes a bending portion 43 and a contact portion 44 which is formed by bending and extending rearward at an end portion of the bending portion 43 and gradually becoming thinner toward the front end portion and having a plurality of teeth 41 formed on its side surface .

The cutting tip 40 constructed as described above can be used in all operations for extraction of the anterior teeth and posterior teeth, but it is more preferable to use it in the extraction surgery of the inferior part of the tooth in consideration of the shape.

5, when the vibration generated by the ultrasonic waves is transmitted to the cutting tip 40 of the flexible type, the cutting tip 40 can be freely bent and can be accessed to the root of the tooth, The tooth is separated from the periodontal ligament.

Accordingly, it is possible to easily perform the extraction operation of the anterior teeth of the teeth, as well as the posterior teeth of the inner teeth, to greatly shorten the operation time, and to securely receive the operation without inconvenience of the patient.

As shown in FIG. 6, the periodontal ligament dissection apparatus using ultrasonic waves according to the present invention can prevent the gingival tissue from being damaged by cooling the heat generated by the friction of the cutting tip 40 during the extraction operation procedure.

In order to achieve the above object, according to the present invention, an air flow path (45) is formed inside the cutting tip (40), and a connection channel And a thermoelectric element 50 for absorbing heat generated by the cutting tip 40 is provided.

The thermoelectric element 50 functions to absorb and cool the heat conducted by the thermally conductive material, and the N-type or P-type thermoelectric semiconductor having the Peltier effect is formed into a compact ring shape as a sintered body of powder metallurgy .

An air inlet 25 is formed at one end of the handpiece 20 to cool the thermoelectric element 50 with external air.

Therefore, the heat of the cutting tip 40 is absorbed by the thermoelectric element 50 provided inside the tip of the handpiece 20, and the heat of the cutting tip 40 is absorbed by one side of the tip of the handpiece 20 provided with the thermoelectric element 50 The external air is introduced through the air inlet 25 formed in the thermoelectric element 50 to cool the thermoelectric element 50.

With this configuration, the heat generated by the friction of the cutting tip 40 is quickly absorbed by the thermoelectric element 50, and the thermoelectric element 50 is cooled by the external air, whereby the damage of the gum tissue due to heat . ≪ / RTI >

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope of the present invention. The scope of the invention should therefore be construed in light of the claims set forth to cover many of such variations.

10: Controller 20: Handpiece
21: body 22:
221: groove 222: male thread
23: cable 24: connection channel
25: air inlet 30:
31: Female thread 40: Cutting tip
41: tooth 42: extension part
43: bent portion 44: contact portion
45: air flow path 50: thermoelectric element

Claims (5)

A controller (10) for generating an ultrasonic wave application signal and controlling driving of the handpiece (20);
A handpiece (20) for generating ultrasonic mechanical vibration by receiving ultrasonic wave applied to the controller (10);
An engaging portion (30) threadably engaged with and detachable from the distal end of the handpiece (20); And
A cutting tip 40 formed of a flexible material extending from the joining portion 30 and inserted between the alveolar bone and approaching the tooth root and cutting the periodontal ligament;
/ RTI >
The cutting tip (40)
Wherein the periodontal ligament peeling mechanism comprises 43.65 to 44.45 wt% of titanium, 55.45 to 56.25 wt% of nickel, 0.015 to 0.1 wt% of oxygen, 0.001 to 0.005 wt% of hydrogen, and 0.001 to 0.005 wt% of carbon.
The method according to claim 1,
The handpiece (20)
A body 21 to be grasped by a user by hand;
A circular groove 221 is formed in the body 21 so that the end of the coupling part 30 is inserted and the groove 221 is formed in the groove 221 to be fastened to the female thread 31 of the coupling part 30. [ (22) in which a male screw (222) is formed in the inside of the cylinder; And
A cable 23 connected to the other side of the body 21 and connected to the controller 10;
/ RTI >
And the ultrasonic vibration in the range of 20 to 40 kHz is generated.
The method according to claim 1,
The cutting tip (40)
And a plurality of teeth (41) are formed on a side surface of the periodic structure, wherein the teeth are formed in a straight line at an end of the coupling part (30) and gradually thinner toward a distal end.
The method according to claim 1,
The cutting tip (40)
An extension portion 42 extending linearly at an end of the coupling portion 30;
A bent portion 43 that is bent and extended forward at an end portion of the extending portion 42; And
A contact portion 44 which is formed by bending and extending obliquely rearward at the end of the bent portion 43 and gradually becoming thinner toward the front end portion and having a plurality of teeth 41 formed on the side thereof;
Wherein the periodontal ligament exfoliation mechanism using ultrasonic waves is used.
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