KR102198293B1 - Stopper for dental drill - Google Patents

Abstract

The present invention relates to a stopper for a dental drill, and more particularly, is coupled to a dental drill provided with a stepped jaw protruding outward and drilling a hole in the alveolar bone, and for adjusting the drilling depth of the dental drill What is claimed is: 1. A stopper for a drill, comprising: a support part that is fixed by hanging on a step of a dental drill, and extends toward a tip end of a drill part of the dental drill while covering a side of the dental drill to contact the periphery of the hole of the alveolar bone; And an extension portion extending toward the tip of the shank portion of the dental drill while at least partially surrounding the outer peripheral surface of the stepped jaw of the dental drill, and a drilling operation is performed while gripping at least one of the support portion and the extension portion. It is about a stopper for a dragon drill.

Description

Stopper for dental drill {Stopper for dental drill}

The present invention relates to a stopper for a dental drill that is easily fastened to a drill even with a short specification and is not inconvenient to grip.

In the event of a tooth defect today, an artificial titanium tooth, a biocompatible material, will take over. The titanium artificial tooth is called an implant, and implantation of the artificial tooth in the defective part is called implant treatment.

For the successful treatment of the implant, a sufficient amount of bone is essential at the location where the implant is to be placed. However, depending on the patient, the oral environment, depending on the location of the missing tooth, there are many cases of insufficient bone mass. In particular, in the case of the maxillary posterior tooth, the maxillary sinus is present and thus the vertical bone mass for implantation is insufficient.

After lifting the maxillary sinus mucosa, a procedure to secure insufficient bone mass by filling a bone graft material in the empty space of the maxillary sinus is widely practiced. There are two methods to elevate the maxillary sinus mucosa: the lateral approach and the vertical approach.

In the case of the vertical approach, the drill is rotated in the oral cavity to gradually remove the alveolar bone while moving to the maxillary sinus mucosa.At this time, the drill drills to the maxillary sinus mucosa at once to adjust the drilling depth so as to prevent tearing the maxillary sinus mucosa. It is attached to and performs the procedure.

Such a safety device is called a stopper. If such a stopper is used, drilling to a desired depth is possible, and if the height information of the remaining bone is accurately known, the burden of perforation of the maxillary sinus mucosa can be further reduced.

The conventionally known stopper 10 is formed in a ring shape as shown in FIG. 1 and is fitted and coupled to a groove 22 provided adjacent to the stepped jaw 21 of the dental drill 20. The drilling depth can be controlled while the lower end of the stopper is in contact with the hole in the alveolar bone.

This stopper is fitted to a drill connected to the handpiece before drilling, and drilling is performed while the stopper is fitted to the drill. At this time, the operator performs the drilling operation while holding the handpiece with one hand. In the case of performing a drilling operation using such a stopper of the prior art, there are the following problems.

If the length of the stopper is long, there is no difficulty in gripping the stopper, but if the length of the stopper is too short due to the deep drilling depth, the fastening structure that can be fastened to the handpiece is not implemented or the operator can not implement the stopper. It is inconvenient to attach to a dental drill. That is, the area of the outer surface of the stopper capable of holding the stopper is narrow, so that it is difficult for the operator to hold the stopper.

In general, the stopper has specifications in 1mm increments to control various drilling depths. However, due to the difficulty of implementing the fastening structure and the inconvenience of gripping, stoppers with short specifications have not been manufactured.

For this reason, there is a section where the drilling depth cannot be controlled because there is no short stopper. In order to solve this problem, the length of the drill is adjusted and supplemented, or drilling is performed depending on the sense of the operator without using a stopper.

1. Prior literature: Japanese Unexamined Patent Application Publication No. 2013-066665 (2013. 04. 18.)

The present invention has been created in order to solve the above-described problems, and more particularly, it is a technical object to provide a stopper for a dental drill that can be easily fastened to a drill even if it is manufactured with a short specification, and is easy to grip.

The stopper for a dental drill of the present invention for the above-described purpose is coupled to a dental drill provided with a stepped jaw protruding outward by drilling a hole in the alveolar bone, and a dental drill for adjusting the drilling depth of the dental drill In the stopper for,

A support part that is fixed by hanging on the step of the dental drill and extends toward the tip of the drill part of the dental drill while surrounding the side of the dental drill; And

It includes an extension portion extending toward the tip end of the shank portion of the dental drill while at least partially surrounding the outer peripheral surface of the stepped jaw of the dental drill,

It may be fastened to the dental drill while gripping at least one of the support part and the extension part.

The stopper for the dental drill,

It may be inserted from the drill portion of the dental drill and coupled while moving toward the shank portion of the dental drill.

The stopper for the dental drill,

The inner diameter of the extension part may be larger than the inner diameter of the support part.

The stopper for the dental drill,

The inner surface of the extension part is provided with a concave recessed part to prevent separation from the dental drill in the direction of the drill part when it comes into contact with the stepped jaw of the dental drill, and the stepped part is seated and fitted in the recessed part. I can.

In the stopper for the dental drill,

The extension portion is provided with a coupling means for inducing elastic deformation of the extension portion in the process of being coupled to the dental drill, the coupling means may be disposed adjacent to the concave portion.

In the stopper for the dental drill,

The coupling means may be a coupling protrusion protruding inward to have an inner diameter smaller than the diameter of the stepped jaw of the dental drill.

In the stopper for the dental drill,

The extension part is provided with a cutout extending from the end toward the support part, and while the cutout is opened, the stepped jaw of the dental drill passes through the coupling protrusion and may be seated in the concave part.

In the stopper for the dental drill,

Since the support has a predetermined length in the axial direction of the dental drill, the drilling depth can be easily adjusted.

In the stopper for the dental drill,

A stopping part may be provided on an inner surface to which the support part and the extension part are connected to be caught by the stepped jaws of the dental drill and stop the entry.

The stopper for a dental drill of the present invention has the advantage that drilling is possible at 1mm intervals at all depths.

In addition, the stopper for a dental drill of the present invention has the advantage of solving the problem that the specification of the drill increases as much as the specification of the stopper, which cannot be manufactured.

In addition, the stopper for a dental drill of the present invention is a stopper having a short specification, but it is easily fastened to the drill and there is no inconvenience in gripping the stopper.

1 is a view showing a state in which a stopper of the prior art is coupled to a dental drill.
2 is a perspective view showing a state in which a stopper according to an embodiment of the present invention is coupled to a dental drill, and FIG. 3 is a front view of FIG. 2.
Figure 4 is a perspective view of the stopper of Figure 2;
Figure 5 is a front view of Figure 4;
6 is a VI-VI cross-sectional view of FIG. 5.
7 is a partial cross-sectional view showing a state when the stopper of FIG. 2 is coupled to a dental drill.
8 is a view showing a comparison of a stopper according to an embodiment of the present invention compared to a conventional stopper.

Hereinafter, a stopper for a dental drill according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The stopper 100 of the present invention is used in combination with the dental drill 200 to adjust the drill depth. Specifically, the dental drill 200 to which the stopper 100 is coupled includes a shank portion 210, a body portion 220, and a drill portion 230, and the stopper 100 includes a body portion 220 ) Is configured to be combined.

The shank portion 210 of the dental drill 200 has a shape of a circular rod as a whole, and a tool coupling portion is provided at the tip so that the rotary tool is coupled.

The body portion 220 is integrally coupled to the shank portion 210 and has a cylindrical shape having a diameter larger than that of the shank portion 210. The body part 220 is provided with a ring-shaped stepped 221 protruding outward. An intermediate plate portion 222 having an outer diameter smaller than that of the stepped step 221 is provided on the rear side of the stepped step 221.

The drill part 230 extends in one direction from the body part 220, and a plurality of drill blades for removing alveolar bone are formed in a spiral shape around the outer periphery.

The stopper 100 is configured to include a support portion 110 and an extension portion 120, and has a cylindrical shape with an empty inside as a whole.

The support portion 110 is formed in an approximately ring shape so as to surround the side of the dental drill 200 and has an outer diameter that is equal to the outer diameter of the body portion 220 and smaller than the outer diameter of the stepped jaw 221. This support 110 is fixed in position by being hooked on the stepped jaw 221 of the dental drill 200. The support part 110 extends toward the tip of the drill part 230 of the dental drill 200 to control the drilling depth of the dental drill 200. Specifically, the support part 110 may adjust the drilling depth of the drill by contacting the guide for implant treatment (not shown). However, the present invention is not limited thereto, and it is possible to adjust the drilling depth of the drill while contacting other components other than the implant procedure guide.

This support portion 110 has a predetermined length in the axial direction of the dental drill 200 (the length from the portion in contact with the end of the dental drill 200 to the end of the support portion 110) to facilitate drilling depth Can be adjusted. Specifically, the support 110 may have all specifications at 1mm intervals, so that it is applicable to all drilling depths.

The extension part 120 extends toward the tip end of the shank part 210 of the dental drill 200 while at least partially surrounding the outer circumferential surface of the stepped jaw 221 of the dental drill 200. These extensions 120 form a gripping surface that the operator can grip together with the support part 110 so that the operator can grip it over a sufficiently wide area compared to the stopper 100 in which only the conventional support part 110 exists. do.

The extension part 120 is integrally connected with the support part 110 and has a ring shape. The outer diameter of the extension part 120 is the same as the outer diameter of the support part 110, and the inner diameter of the extension part 120 has a diameter larger than that of the support part 110, so that the stepped part 221 can be accommodated therein. .

On the inner surface of the extension portion 120, a concave portion 121 and a coupling protrusion 122 are provided. The concave portion 121 is disposed adjacent to the support portion 110 and when contacting the stepped jaw 221 of the dental drill 200, the stopper 100 from the dental drill 200 is the drill portion 230 It is to prevent deviation in the direction of the tip of. The concave portion 121 is a portion that is dug to an extent equal to the outer diameter of the stepped jaw 221 so that the stepped portion 221 can be accommodated therein, so that the stepped portion 221 is seated and fitted to the concave portion 121. .

The coupling protrusion 122 is a portion disposed adjacent to the concave portion 121 and protrudes inwardly and has an inner diameter slightly smaller than that of the dental drill 200. This coupling protrusion 122 is a component of a coupling means for inducing the elastic deformation of the extension in the process of being combined with the dental drill, the stepped 221 of the dental drill 200 accommodated in the concave portion 121 It passes through the concave portion 121 and performs a function of preventing separation to the outside. In this embodiment, the coupling protrusion is illustrated as the coupling means, but the coupling means may be a coupling groove by changing the male and female of the drill and the stopper.

On the other hand, in the extension part 120, cutouts 123 are provided at equal intervals along the circumferential direction. Specifically, the extension part 120 is provided with a cutout 123 extending from the end toward the support part 110 so that the stepped jaw 221 of the dental drill 200 enters the concave part 121 As 123 is opened, the stepped jaw 221 of the dental drill 200 can pass through the coupling protrusion 122. After the stepped jaw 221 of the dental drill 200 passes through the coupling protrusion 122 and is seated in the concave portion 121, the incision 123 is restored to its original state, and the dental drill 200 It prevents the stepped 221 from being separated.

A stopping part 130 is provided between the support part 110 and the extension part 120 so that the stepped jaw 221 of the dental drill 200 is caught and stops entering the inner surface. After the stepped jaw 221 of the dental drill 200 enters through the opened portion of the extension part 120, the entry is stopped while contacting the stop 130.

The stopper 100 according to the present invention is inserted from the drill part 230 of the dental drill 200 and moves toward the shank part 210 of the dental drill 200 while the stopper 130 is a stepped jaw ( 221 and the stepped jaw 221 is accommodated in the concave portion 121 of the extension portion 120, the stopper 100 is coupled to the drill.

At this time, the end portion of the extension part 120 is placed at a position spaced apart from the stepped jaw 221 by a predetermined distance while covering the stepped part 221 to have a sufficient area for the operator to grip.

The effect of the stopper 100 for the dental drill 200 according to an embodiment of the present invention is as follows.

First, before the operator performs the procedure, the stopper 100 is coupled to the dental drill 200. Specifically, the operator inserts the drill part 230 of the dental drill 200 into the central hole of the extension part 120 of the stopper 100 while holding at least one of the extension part and the support part, and the stopper (100) is moved to face the shank portion 210 of the dental drill 200.

In this process, while the coupling protrusion 122 of the extension part 120 contacts the stepped jaw 221 of the dental drill 200, the incision part 123 opens, and accordingly, the stopper 100 is allowed to enter. After the stepped jaw 221 of the dental drill 200 is seated in the concave portion 121, the open incision 123 is restored to its original state so that the stopper 100 is coupled to the dental drill 200. At this time, the entrance to the stepped jaw 221 of the dental drill 200 is restricted by the stop 130 to prevent the movement of the additional stopper 100.

Thereafter, the operator holds the handpiece with one hand and performs a predetermined drilling operation. At this time, the stopper can adjust the drilling depth of the drill by contacting the implant guide.

The stopper 100 of the present invention will be described in comparison with the conventional stopper 10 with reference to FIG. 8.

In FIG. 8, (a), (b), (c), and (d) illustrate that the support 110 has various axial lengths. In the case of FIG. 8(d) where the axial length of the support part 110 is the shortest in FIG. 8, the extension part 120 extends toward the shank part 210 past the stepped jaw 221, so that the stopper is drilled for dentistry. It can be seen that a sufficient gripping area is provided to the operator in the process of fastening to.

In contrast, the conventional stopper 10 is shown in (e), (f), (g), and (h) of Fig. 8, and as shown in the figure, the conventional stopper 10 has an axial length In the case of the short Fig. 8(h), the length at which the operator can grip the stopper 10 is very short, so it is not actually implemented as a product.

8(d) and 8(h) are both stoppers capable of controlling the same drilling depth, but in this embodiment, the extension part 120 is provided, so that the length corresponding to the extension part 120 is sufficient. While providing the gripping area, it can be seen from FIG. 8(h) that the gripping area is relatively very narrow.

As a result, in the case of the conventional stopper 10, the position at which the stopper is fastened to the drill is formed on the outside and has a length limit, whereas in the case of the present invention, the position at which the stopper 100 is fastened to the drill and stopped is formed inward. There is an advantage in that a sufficient space to be gripped outside can be secured.

In addition, the stopper 100 of the present invention has the advantage of enabling drilling at 1mm intervals at all drilling depths. On the other hand, in the case of the conventional stopper 10 (shown in FIG. 8(h)), there is a problem in that the gripping area is small and thus cannot be mass-produced into an actual product.

In addition, although the number of drill specifications increases as much as the specifications of the stopper 10, which cannot be manufactured in the prior art, the stopper 100 of the present invention has the advantage of reducing the number of drill specifications because all sizes can be manufactured.

In addition, the stopper 100 of the present invention is a stopper 100 having a short specification, but can be easily fastened to a drill, and gripping is not inconvenient.

In the above, the stopper for the dental drill of the present invention has been described with reference to various embodiments, but it is not limited thereto, and whatever can be reasonably interpreted from the scope of the present invention, it is natural to fall within the scope of the present invention. .

100...stopper 110...support
120...extension 121...concave
122...combination protrusion 123...incision
130...stop
200...dental drill 210...shank part
220...Body part 221...Step chin
222...Middle plate part 230...Drill part

Claims (9)

In the stopper for a dental drill for drilling a hole in the alveolar bone and being coupled to a dental drill provided with a stepped protruding outward, the drill depth of the dental drill,
It is fixed by hanging on the step of the dental drill, and it extends toward the tip of the drill part of the dental drill while covering the side of the dental drill, and the inner diameter is equal to the outer diameter of the cylindrical body part and contacts the body part of the dental drill. A support that can be supported; And
It includes an extension portion extending toward the tip end of the shank portion of the dental drill while at least partially surrounding the outer peripheral surface of the stepped jaw of the dental drill,
It is fastened to the dental drill while gripping at least one of the support part and the extension part, is inserted from the drill part of the dental drill and moved toward the shank part of the dental drill, between the drill part and the shank part Is coupled to the body of the
The body portion has an outer diameter larger than that of the drill portion and has a cylindrical shape in which a drill blade is not formed on the outer surface, and the axial length of the body portion is longer than the axial length of the support portion, so that the body portion passes through the support portion and from the shank portion. Stopper for a dental drill, characterized in that protruding in a direction away. delete The method of claim 1,
The stopper for a dental drill, characterized in that the inner diameter of the extension is larger than the inner diameter of the support. The method of claim 1,
The inner side of the extension part is provided with a concave recessed part to prevent separation from the dental drill in the direction of the drill part when it comes into contact with the stepped part of the dental drill, and the stepped part is seated and fitted in the concave part. Stopper for a dental drill, characterized in that. The method of claim 4,
A stopper for a dental drill, characterized in that the extension part is provided with a coupling means for inducing the elastic deformation of the extension part during the process of being combined with the dental drill, and the coupling means is disposed adjacent to the recess. The method of claim 5,
The coupling means is a stopper for a dental drill, characterized in that the coupling protruding inward to have an inner diameter smaller than the diameter of the stepped jaw of the dental drill. The method of claim 6,
A dental drill, characterized in that the extension part is provided with a cutout extending from the end toward the support part, and the stepped jaw of the dental drill passes through the coupling protrusion to be seated in the concave part while the cutout is opened. Stopper for. The method of claim 1,
The support portion has a predetermined length in the axial direction of the dental drill, so that the drilling depth is easily adjustable. The method of claim 1,
A stopper of a dental drill, characterized in that a stopper is provided on an inner surface of the support part and the extension part to be connected to the stepped jaw of the dental drill.

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