KR20100008095A - Drill for implant with stopper - Google Patents

Abstract

PURPOSE: A drill for implant operation equipped with a stopper is provided, which facilitates boring work regardless of thickness variation of the alveolar bone and reduces impact by rotation. CONSTITUTION: A drill for implant operation comprises a drill body(10) of the hollow pipe shape in which a cutting blade(12) is formed in the end part; a connector(20) which is combined to the lower part of the drill body and is mounted on the dental handpiece; a projected member(30) which is inserted into the drill body, is elastically supported, and protrudes outside; a stopper(40) of a hollow pipe shape which is installed to be replaced on the drill body outer circumference and is settled on the connector; and a contraction unit(42) which makes the stopper compressed at the constant height.

Description

Drill for implant with stopper

The present invention relates to a drill for implant surgery provided with a stopper, and more particularly, a stopper is provided in the drill used when drilling the alveolar bone for implantation of the implant fixture, and is provided with a stopper capable of drilling more than a predetermined depth. It relates to a drill for implant treatment.

Recently, implantation procedures for implanting artificial teeth are rapidly spreading.

However, many patients have oral structures that are difficult to implant, especially in the case of the alveolar bone where the maxillary sinus is located.

The maxillary sinus is one of the sinus cavities in the middle of the upper jaw (alveolar bone), a pair of (cavities) inside the inside covered with a mucous membrane of the nose, and the air inside.

For example, when the maxillary alveolar bone is usually 10 cm or more in thickness, implants can be stably placed. However, some patients have a thickness of less than 10 cm and even 4 cm or less.

Therefore, if the thickness of the alveolar bone is thin, the maxillary sinus elevation is first performed to increase the thickness of the alveolar bone in order to stably implant the implant.

Maxillary sinus elevation is to increase the thickness by implanting the alveolar bone. If there is not enough bone to implant an implant in the alveolar bone, it refers to a procedure in which the inner lining covering the inside of the maxillary sinus is lifted up and an artificial bone is implanted therein.

When performing the maxillary sinus elevation procedure, the implant drill is inserted into the alveolar bone and perforated. The structure of the drill is shown in FIG. 1.

1 is a sectional view of a conventional implant treatment drill and a perspective view of a stopper.

A drill part 1 having a hollow tube shape and a blade formed at an end thereof, a protrusion part 3 inserted into the drill part 1 to be elastically supported and squeezed outward, and coupled to a lower end of the drill part 1 to be dental It consists of a connecting portion (2) for connecting with the handpiece for the spring, and provided between the projection (3) and the connecting portion (2).

The operating method is to drive the dental handpiece to rotate the connecting portion 2, the drill unit 1 is rotated and the drill unit 1 against the gum alveolar bone to proceed the drilling. At this time, the projection 3 is pushed by the alveolar bone and the drilling proceeds in a retracted state. When the drilling part 1 penetrates the alveolar bone after the drilling is completed, the protrusion 3 is moved forward by the elastic force of the spring 4. As you move forward, the maxillary sinus lining is lifted.

Here, the length of the drill part 1 is usually determined, but the thickness of the alveolar bone is varied, so that when drilling the thin alveolar bone, the drill part 1 tears the inner membrane while penetrating the alveolar bone. In order to prevent this, a ring-shaped stopper 5 of a constant height is usually used to fit the drill portion 1, which stops the drill portion 1 from proceeding beyond the set depth in the alveolar bone. To prevent damage.

Of course, the operator grasps the thickness of the alveolar bone in advance by X-ray, selects and mounts the stopper 5 of the appropriate height in accordance with the puncture operation.

However, in the case of the stopper as described above, even if the operator selects and mounts a stopper having an appropriate height, the length of the drill part does not exactly match the thickness of the alveolar bone during actual drilling. In other words, when the drill unit does not completely puncture the alveolar bone, the stopper may not proceed any further.

This causes the hassle and delay of the procedure time to retract the drill and to replace the stopper.

In addition, the stopper is usually made of a metal material to hurt the patient by hurting the gums or impact the alveolar bone by the rotation during drilling.

In addition, disposable stoppers made of synthetic resin may be toxic and costly, and this also has the disadvantage of damaging the gums and alveolar bone.

The present invention has been made to solve the above problems and an object of the present invention is to provide a drill for the implant procedure provided with a stopper, the height of the stopper can be partially adjusted by an external force.

In addition, to provide a drill for implant treatment provided with a stopper to lessen the damage to the alveolar bone and gums.

In order to achieve the above object, the present invention is an implant for drilling the alveolar bone for implant treatment, the drill body of the hollow tube shape with a cutting edge formed at the end; A connection body coupled to a lower portion of the drill body and mounted to a dental handpiece; A protruding member inserted into the drill body and elastically supported and protruding to the outside; A stopper of a hollow tube shape that is replaceably mounted on the outer circumferential surface of the drill body and is seated on the connecting body so that the drill body is inserted into the alveolar bone by a predetermined depth; wherein the stopper is compressed by a predetermined height in the center of the stopper It is characterized in that the shrinkage is made possible.

Preferably, the contraction portion is folded a plurality of times characterized in that the bellows corrugated shape.

Preferably, the stopper is characterized in that made of a silicon material.

Preferably, the stopper upper surface is characterized in that the projection is further provided to allow the operator to sense the moment when the stopper is in contact with the alveolar bone.

Preferably, the protruding member is characterized in that it is elastically supported by a spring.

Preferably, the protruding member and the connecting member are made of a magnetic body having the same polarity, respectively, characterized in that the mutual elastic support.

The effect of the present invention by the above-described configuration is as follows.

Since the height of the stopper with shrinkage can be reduced by the compressive force, even if the stopper is in contact with the alveolar bone and the drill body stops progressing, the drill body can be further advanced by a slight force. Can be facilitated.

In addition, the stopper is made of silicone to lessen the damage to the gums and alveolar bone, and the contraction is buffered to reduce the impact of the rotation to reduce the pain of the patient.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a drill for implant surgery provided with a stopper according to an embodiment of the present invention, and FIG. 3 is a perspective view of the stopper shown in FIG. 2.

As shown in the present invention, the drill body 10, the connecting body 20, the protruding member 30, and the stopper 40 are largely combined.

The drill body 10 has a hollow tube shape with a center penetrated in a circular shape, and a cutting edge 12 is inclined at an end thereof. As a material, steel and the like which are excellent in strength are usually used.

Next, the connecting body 20 is formed in a disc shape having a diameter larger than the diameter of the drill body 10 and is coupled to the drill body 10 and the shaft is formed on the lower surface, wherein the shaft is a dental hand. It is connected to the driving motor of the piece (not shown) to rotate.

Next, the protruding member 30 has a circular rod shape which is inserted into the drill body 10 and moves up and down. The protruding member 30 is rounded and a spring 32 is coupled to the lower end thereof. It is provided on the connecting body 20.

In addition, the protruding member 30 is formed so that each step 14 is formed inside each other so as not to be separated from the drill body 10.

That is, since the spring 32 pushes up the protruding member 30 in a compressed state, the protruding member 30 has a rounded tip portion protruded outwardly while being caught by the step 14.

Next, the stopper 40, which is the core of the present invention, has a circular hollow tube shape as shown in FIG. 3, and is mounted on the drill body 10, and a contraction portion 42 is formed in the middle.

The contraction portion 42 is made of a bellows shape folded several times and can be folded or unfolded by an external force.

Referring to the cross section shown in FIG. 2 for a more detailed description, since the contraction portion 42 has a corrugated structure both inside and outside, pressing up and down reduces the overall height of the stopper 40 slightly. In other words, height adjustment becomes flexible.

In addition, the stopper 40 is preferably made of silicon.

Because the material having a high strength is difficult to be folded even if the contraction portion 42 is formed in the center, it is difficult to compress. However, since silicone is soft, the contraction portion 42 is easily reduced by external force.

Therefore, when the drill body 10 proceeds by the depth (thickness of the alveolar bone) set when drilling the alveolar bone by rotating the drill body 10 after inserting the drill body 10 and the stopper 40. At 40, the process is stopped.

In this case, when the drill body 10 does not completely penetrate the alveolar bone due to an error in the set depth, the operator pushes the drill body 10 with a slight force, thereby contracting the 42 of the stopper 40. Since the stopper 40 is compressed while being reduced, as a result, the operator can complete the drilling operation of the alveolar bone.

In general, the shrinkage of the contraction portion 42 may vary, but is usually about 0.5 ~ 2mm is appropriate.

In addition, the contraction portion 42 is also to the buffering effect to reduce the impact on the gums or alveolar bone when the stopper 40 contacts the alveolar bone.

In addition, the stopper 40 is fitted with the drill body 10 so that replacement is possible.

On the other hand, it is preferable that one or more protrusions 44 are formed on the upper surface of the stopper 40, that is, the portion in contact with the alveolar bone.

The protrusion 44 has a convex projecting shape, and when the stopper 40 touches the alveolar bone when the stopper 40 is mounted on the drill body 10 to perform a drilling operation, the operator causes the drill body ( 10) to detect the moment that should stop the progress of.

Because the stopper 40 is made of silicon, the operator may not recognize the stopper 40 even when the stopper 40 touches the alveolar bone when the drill body 10 proceeds. Therefore, when the protrusion 44 rotates and contacts the gum or alveolar bone, the operator may detect this by a slight vibration and stop the drilling operation. The protrusion 44 is also made of silicon in the same way.

The contraction portion 42 may have another shape, for example, a plurality of small springs may be disposed therein, such that the contraction portion 42 may be contracted by a pressing force. That is, a small spring is built in the contraction portion in the longitudinal direction of the stopper.

For reference, the stopper 40 may be operated after being selected and fitted to fit the thickness of the alveolar bone measured by the operator among a plurality of having different heights.

Next, another embodiment of the present invention will be described.

While the protruding member 30 is elastically supported by the spring 32, the protruding member 30 may be elastically supported by magnetic force. That is, when the lower end of the protruding member 30 and the upper surface of the connecting body 20 are made of a magnetic material having the same polarity, they are elastically supported by mutual repulsive force, thereby enabling the same function as the spring.

Hereinafter will be described the use state of the present invention.

Figure 4 is a use state diagram showing a state of puncturing the alveolar bone using the present invention.

As shown in FIG. 4 (a), the operator inserts the stopper 40 into the drill body 10 and gives a force in the advancing direction in the state where the tip of the protruding member 30 contacts the alveolar bone. As the 32 is compressed, the protruding member 30 retreats.

When the handpiece is driven, the drill body 10 is rotated and the drill body 10 proceeds while cutting the alveolar bone when the operator performs the punching operation while continuing to apply the force.

Figure 4 (b) shows the state in which the stopper 40 is in contact with the alveolar bone just before the completion of drilling by the drill body 10 almost passes through the alveolar bone.

At this time, the protrusion 44 first touches the alveolar bone so that the operator detects that the stopper 40 has touched the alveolar bone and stops the progress of the drill body 10 first.

Usually, the stopper 40 is selected to fit the thickness of the alveolar bone, so that the perforation is completed while the protrusion 44 is in contact with the alveolar bone.

However, when an error occurs in the thickness of the alveolar bone determined by X-ray and the length from the upper surface of the stopper 40 to the cutting edge 12 is slightly smaller than the thickness of the alveolar bone, the puncture is not completed even if the stopper 40 contacts the alveolar bone. In this case, the operator may advance the drill body 10 while applying more force.

4 (c) shows a state in which the stopper 40 is compressed by the operator's external force and the perforation is completed.

As described above, since the height of the stopper 40 decreases as the contraction portion 42 is folded, the drill body 10 may be slightly more advanced and complete perforation of the alveolar bone. You can do it.

As described above, the present invention has a basic technical idea of mounting a compressible stopper to an implant treatment drill, and since the above description is merely an embodiment of the present invention, the true scope of the present invention is determined by the claims. Should be.

Figure 1 is a perspective view of a cross-sectional view and a stopper showing a conventional implant treatment drill.

Figure 2 is a cross-sectional view showing a drill for implant treatment provided with a stopper according to an embodiment of the present invention.

3 is a perspective view of the stopper shown in FIG.

Figure 4 is a use state showing the state of puncturing the alveolar bone using the present invention.

<< Explanation of symbols for main part of drawing >>

10: drill body 12: cutting edge

14: step 20: connector

30: protruding member 32: spring

40: stopper 42: contraction

44: turning

Claims (6)

In the implant for drilling the alveolar bone for implant treatment, A hollow tubular drill body 10 having a cutting edge 12 formed at an end thereof; A coupling body 20 coupled to a lower portion of the drill body 10 and mounted to a dental handpiece; A protruding member 30 inserted into the drill body 10 to elastically support and protrude outwardly; The drill body (10) is inserted into the alveolar bone to a certain depth so that the drill body (10) is mounted on the outer peripheral surface of the hollow tube-shaped stopper 40 is seated on the connecting body; The stopper is equipped with a stopper for implant treatment, characterized in that the center portion of the stopper 40, the stopper 40 is formed to be compressed by a predetermined height. The method of claim 1, The contraction portion 42 is a drill for implant treatment provided with a stopper, characterized in that the bellows bellows shape folded many times. The method of claim 2, The stopper 40 is a drill for implant operation provided with a stopper, characterized in that made of a silicon material. The method according to any one of claims 1 to 3, The stopper is provided on the upper surface of the stopper is provided with a stopper, characterized in that the projection 44 is further provided to detect the moment when the stopper 40 is in contact with the alveolar bone. The method of claim 1, The protruding member 30 is a drill for implant operation provided with a stopper, characterized in that the spring 32 is elastically supported. The method of claim 1, The protruding member 30 and the connecting body 20 is a drill for implant treatment provided with a stopper, characterized in that each of the magnetic body having the same polarity is supported elastically.

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