WO2019164282A1 - Stopper for dental drill - Google Patents

Abstract

The present disclosure relates to a stopper for a dental drill for drilling a hole through the alveolar bone, the dental drill comprising a body including a shank disposed at one side, a drilling portion disposed at the other side opposite to the one side, and a stepped portion protruding outward and positioned between the shank and the drilling portion, wherein the stopper is coupled to the dental drill so as to adjust the drilling depth of the dental drill. The stopper comprises: a support portion which is inserted into the dental drill from the drilling portion and is fixed by being locked by the stepped portion of the body; and an extension portion extending toward the shank from the support portion.

Description

Stopper for dental drill

The present disclosure relates to a stopper for a dental drill, and more particularly, to a stopper for a dental drill that is easy to fasten to a drill but is not inconvenient to grip even with a short specification.

This section provides background information related to the present disclosure which is not necessarily prior art.

In today's tooth defects, titanium artificial teeth, which are biocompatible materials, take over. Titanium artificial teeth are called implants, and implanting artificial teeth into tooth defects is called implant treatment.

Sufficient bone mass is essential for the location of the implant for successful treatment of the implant. However, depending on the patient, the oral environment, and the location of missing teeth, bone mass is often insufficient. In particular, in the maxillary posterior part, the maxillary sinus is present, which faces a situation where there is a lack of vertical bone mass for implantation.

After elevating the maxillary sinus mucosa, a procedure for filling bone grafts into the empty space of the maxillary sinus to secure insufficient bone mass is widely performed. There are two ways of elevating the maxillary sinus mucosa: the lateral approach and the vertical approach.

In the vertical approach of the above procedure, the drill is rotated within the oral cavity to move up to the maxillary sinus mucosa, gradually eliminating alveolar bone. The procedure is performed by mounting on.

Such a safety device is called a stopper. When the stopper is used, drilling as much as desired is possible, and if the height information of the remaining bone is accurately known, the burden on the 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 into and coupled to a groove 22 provided adjacent to the stepped jaw 21 of the dental drill 20. The bottom of the stopper 10 may be in contact with the periphery of the alveolar bone to control the drilling depth (eg, US Pat. No. 4,365,958).

The stopper 10 is fitted to a drill connected to the handpiece before drilling, and drilling is performed while the stopper 10 is fitted to the drill. At this time, the operator performs drilling while holding the handpiece with one hand. When performing a drilling operation using the stopper 10 of the prior art has the following problems.

If the length of the stopper 10 is long, there is no difficulty for the operator to hold the stopper 10, but if the length of the stopper 10 becomes too short, the fastening structure can be fastened to the handpiece. If this is not implemented or the operator is uncomfortable in coupling the stopper 10 to the dental drill. That is, since the area of the outer surface of the stopper 10 that can hold the stopper 10 is narrow, it becomes difficult for the operator to hold the stopper 10.

In general, the stopper 10 has a specification in units of 1 mm so as to control various drilling depths. However, due to the difficulty in implementing the fastening structure and the inconvenience of gripping, the stopper 10 having a short specification is not manufactured.

For this reason, there is a section in which the drilling depth cannot be controlled because there is no short stopper 10. In order to solve this problem, the length of the drill is compensated for, or depending on the operator's sense without using the stopper 10. Drilling is performed.

Disclosure of Invention The present disclosure was created to solve the above-described problems, and more particularly, it is a technical object of the present invention to provide a stopper for a dental drill that can be easily fastened to a drill and easily gripped even when manufactured to a short specification.

This section provides a general summary of the disclosure and is not a comprehensive disclosure of its full scope or all, provided that this is a summary of the disclosure. of its features).

According to one aspect of the present disclosure (According to one aspect of the present disclosure), a shank on one side, a drilling portion on the other side opposite to one side, and between the shank and the drilling portion is provided with a stepped body protruding outwards And a stopper for a dental drill for adjusting a drilling depth of the dental drill, which is coupled to a dental drill that drills a hole in the alveolar bone, the stopper being inserted into the dental drill from the drilling portion side to the step of the body. Hanging fixed support; And an extension extending from the support toward the shank. A stopper for a dental drill is provided.

According to the stopper for one dental drill according to the present disclosure, there is an advantage that it is possible to drill at intervals of 1 mm at all depths.

In addition, according to the stopper for another dental drill according to the present disclosure, there is an advantage to solve the problem that the specification of the drill is increased by the specification of the stopper that cannot be manufactured conventionally.

In addition, according to the stopper for another dental drill according to the present disclosure, the stopper has the advantage of being a stopper of a short specification, but is easily fastened to the drill and has 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 illustrating a stopper coupled to a dental drill according to an embodiment of the present disclosure;

3 is a front view of FIG. 2;

4 is a perspective view of the stopper of FIG.

5 is a front view of FIG. 4;

6 is a cross-sectional view of VI-VI 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 disclosure compared with a conventional stopper.

The present disclosure will now be described in detail with reference to the accompanying drawing (s).

As shown in Figures 2 and 3, the stopper 100 of the present disclosure is used to adjust the drilling depth by being used in conjunction with the dental drill (200). Specifically, the dental drill 200 to which the stopper 100 is coupled includes a shank 210, a body 220, and a drilling unit 230, and the stopper 100 is coupled to the body 220. It is composed.

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

The body 220 is integrally coupled to the shank 210 and has a cylindrical shape larger in diameter than the shank 210. The body 220 is provided with a stepped ring shape 221 (see FIG. 7) protruding outward. The rear side of the step 221 is provided with an intermediate plate 222 (see FIG. 7) having an outer diameter smaller than the step 221.

Drilling unit 230 is to extend in one direction from the body 220, the drill blade for removing the alveolar bone on the outer periphery is formed in a plurality of spiral.

The stopper 100 is configured to include a support 110 and an extension 120, and is formed in a cylindrical shape with an empty inside.

The support 110 is formed in a substantially ring shape to surround the side of the dental drill 200 and has an outer diameter equal to the outer diameter of the body 220 and smaller than the outer diameter of the step 221. The support 110 is fixed to a position caught on the step 221 of the dental drill 200. The support 110 extends toward the tip of the drilling unit 230 of the dental drill 200 to control the drilling depth of the dental drill 200. Specifically, the support 110 may be in contact with the implant guide (not shown) to adjust the drilling depth of the drill. However, the present invention is not limited thereto, and the drilling depth of the drill may be adjusted while being in contact with other components other than the implant guide.

The support 110 has a predetermined length (length from the portion in contact with the end of the dental drill 200 to the end of the support 110) in the axial direction of the dental drill 200 to facilitate the drilling depth. I can regulate it. Specifically, the support 110 may have all specifications at intervals of 1 mm, and thus may be applicable to all drilling depths.

The extension part 120 extends toward the tip of the shank 210 of the dental drill 200 while at least partially wrapping the outer circumferential surface of the step 221 of the dental drill 200. The extension part 120 together with the support part 110 forms a gripping surface that can be gripped by the operator, thereby allowing the operator to grip a large enough area over the stopper 100 having only the conventional support part 110. .

The extension part 120 is integrally connected with the support part 110 and is formed in 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 larger diameter than the support part 110 to accommodate the step 221 therein.

4 to 6, a recess 121 and a coupling protrusion 122 are provided on an inner side surface of the extension part 120. The recess 121 is disposed adjacent to the support 110 and the stopper 100 is distal to the drilling part 230 from the dental drill 200 when the recess 121 is in contact with the step 221 of the dental drill 200. This is to prevent the departure from. The concave portion 121 is a portion which is dug to the same as the outer diameter of the step 221 to accommodate the step 221 therein so that the step 221 is seated on the concave portion 121 and fitted.

Coupling protrusion 122 is a portion disposed adjacent to the concave portion 121 is a portion having an inner diameter slightly protruded inwardly than the dental drill (200). Coupling protrusion 122 is a configuration of the coupling means for inducing elastic deformation of the extension portion 120 in the process of being coupled to the dental drill, step 221 of the dental drill 200 accommodated in the recess 121. Passes through the recess 121 to prevent the departure from the outside. Although the engaging projection is illustrated as the engaging means in this embodiment, it is also possible to change the male and female of the drill and the stopper so that the engaging means is the engaging groove.

On the other hand, the extension portion 120 is provided with a plurality of cutouts (123; cut-out) along the circumferential direction, preferably at equal intervals. In detail, the extension part 120 is provided with an incision part 123 extending from the end toward the support part 110 so that the stepped part 221 of the dental drill 200 enters the concave part 121. As the 123 is opened, the step 221 of the dental drill 200 may pass through the coupling protrusion 122. After the step 221 of the dental drill 200 passes through the coupling protrusion 122 and is seated in the recess 121, the step 123 of the dental drill 200 is restored to its original state and the step of the dental drill 200 is performed. 221 prevents the departure.

As shown in FIG. 7, a stop 130 is provided between the support 110 and the extension 120 so as to stop the entry of the stepped jaw 221 of the dental drill 200. . After the step 221 of the dental drill 200 enters through the opened portion of the extension part 120, the entry stops while contacting the stop part 130.

The stopper 100 according to the present disclosure is inserted from the drilling unit 230 of the dental drill 200 and moves toward the shank 210 of the dental drill 200 while the stop 130 is stepped 221. ) And the stopper 100 is coupled to the drill while the step 221 is accommodated in the recess 121 of the extension part 120.

In this case, the end portion of the extension part 120 may cover the step 221 and be positioned at a position spaced apart from the step 221 by a predetermined distance to have a sufficient area for the operator to grip. For example, the extension 120 may be formed to a length of 2.5mm, the support 110 may be formed of 1mm ~ 9mm depending on the drilling depth.

Effects of the stopper 100 for the dental drill 200 according to an embodiment of the present disclosure are as follows.

First, the operator combines the stopper 100 with the dental drill 200 before the procedure. Specifically, the operator inserts the drilling part 230 of the dental drill 200 into the center hole of the extension part 120 of the stopper 100 while holding at least one part of the extension part and the support part and stopper ( 100 is moved toward the shank 210 of the dental drill 200.

In this process, as the coupling protrusion 122 of the extension 120 contacts the step 221 of the dental drill 200, the cutout 123 is opened, thereby allowing the stopper 100 to enter. After the step 221 of the dental drill 200 is seated in the recess 121, the cutout 123 is restored to its original state so that the stopper 100 is coupled to the dental drill 200. At this time, the step 221 of the dental drill 200 is controlled by the stop 130 to prevent the movement of the additional stopper 100.

The operator then holds the handpiece with one hand and performs a predetermined drilling operation. At this time, the stopper is able to adjust the drilling depth of the drill in contact with the implant guide.

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

(A), (b), (c) and (d) in FIG. 8 illustrate that the support 110 has various axial lengths. In the case of FIG. 8 (d), which has the shortest axial length of the support 110, the extension part 120 extends toward the shank 210 beyond the step 221 so that the stopper 100 can be inserted into the dental drill. It can be seen that the tightening area is provided to the operator during the fastening process.

In contrast, the conventional stopper 10 is illustrated in FIGS. 8E, 8F, 8H, and in the case of the conventional stopper 10, FIG. 8H having a short axial length. In the case of), the length that the operator can hold the stopper 10 is very short so that it is not actually implemented as a product.

Comparing Fig. 8 (d) and Fig. 8 (h) is both a stopper that can control the same drilling depth, but in this embodiment is provided with an extension 120 is sufficient to the length corresponding to the extension 120 While providing the gripping area, it can be seen from FIG. 8 (h) that the gripping area is relatively very narrow.

In the case of the conventional stopper 10 has a length limit by forming a position on the outside (top surface of the stopper 10) is fastened to the drill, in the case of the present disclosure, the stopper 100 is fastened to the drill to stop There is an advantage in that the position to be formed on the inner side (stopper 130 of the stopper 100) to ensure a sufficient space to be gripped to the outside.

In addition, the stopper 100 of the present disclosure has the advantage that can be drilled at intervals of 1mm at all drilling depths. On the other hand, in the case of the conventional stopper 10 (as shown in Fig. 8 (h)), there is a problem in that the gripping area is small so that it cannot be mass produced as an actual product.

In addition, although the number of drill specifications increases as much as the specification of the stopper 10 which cannot be manufactured by the conventional technique, the stopper 100 of this indication can manufacture all size, and there exists an advantage which can reduce the number of drill specifications.

In addition, the stopper 100 of the present disclosure is a stopper 100 of a short specification, but can be easily fastened to the drill, there is an advantage that the grip is not inconvenient.

In the following, various examples of stoppers for a drill for a dental drill according to the present disclosure will be described.

(1) having a shank on one side, a drilling portion on the other side opposite to one side, and a body provided with a stepped protrusion between the shank and the drilling portion and projecting outward, and coupled to a dental drill for drilling holes in the alveolar bone, A stopper for a dental drill for adjusting a drilling depth of a dental drill, comprising: a support portion inserted into a dental drill toward a drilling portion and fixed to a step of a body; And an extension extending from the support toward the shank.

(2) The stopper for the dental drill, characterized in that the extension is formed with an incision to induce elastic deformation of the extension in the process of coupling with the dental drill.

(3) The stopper for the dental drill, characterized in that the inner diameter of the extension is larger than the inner diameter of the support.

(4) The stopper for the dental drill, characterized in that one of the engaging projection and the coupling groove is formed on the inner side of the extension to prevent the stopper from being separated in the direction of the drilling portion.

(5) The stopper for the dental drill, characterized in that one of the engaging projection and the coupling groove is formed on the inner side of the extension to prevent the stopper from being separated in the direction of the drilling portion.

(6) A stopper for a dental drill, characterized in that a recess is formed on the inner side of the extension to receive the step of the body between one of the convex protrusions and the coupling groove and the support.

(7) A stopper for a dental drill, characterized in that the support portion extends from the step of the body toward the drilling portion and has a length adapted to the drilling depth of the dental drill.

(8) A stopper for a dental drill, characterized in that the support portion has a stopper at its upper portion that comes into contact with the step of the body.

(9) The inner side of the extension is formed with engaging projections to prevent the stopper from escaping in the direction of the drilling portion, the inner side of the extension is formed with a recess for accommodating the step of the body between the binding protrusion and the support, And a stopper of the dental drill characterized in that the stepped portion of the body is received and fixed by the coupling protrusion.

The stopper for the dental drill of the present disclosure has been described above with reference to various embodiments, but it is not limited thereto, and anything that can be reasonably interpreted from the scope of the present disclosure is naturally within the scope of the present disclosure. .

Claims (10)

It has a shank on one side, a drilling part on the other side opposite to one side, and a body provided with a stepped protrusion located between the shank and the drilling part, and coupled to a dental drill that drills a hole in the alveolar bone. A stopper for a dental drill for adjusting the drilling depth of A support part inserted into the dental drill toward the drilling part and fixed to a step of the body; And A stopper for a dental drill, comprising: an extension extending from the support toward the shank. The method of claim 1, Extension portion is a stopper for a dental drill, characterized in that the incision is formed to induce the elastic deformation of the extension in the process of coupling with the dental drill. The method of claim 1, A stopper for a dental drill, characterized in that the inner diameter of the extension is greater than the inner diameter of the support. The method of claim 1, Stopper for the dental drill, characterized in that one of the engaging projection and the coupling groove is formed on the inner side of the extension to prevent the stopper from being separated in the direction of the drilling. The method of claim 2, Stopper for the dental drill, characterized in that one of the engaging projection and the coupling groove is formed on the inner side of the extension to prevent the stopper from being separated in the direction of the drilling. The method of claim 4, wherein Stopper for a dental drill, characterized in that the inner side of the extension is formed with a recess for receiving the step of the body between the support and one of the binding protrusion and the coupling groove. The method of claim 5, Stopper for a dental drill, characterized in that the inner side of the extension is formed with a recess for receiving the step of the body between the support and one of the binding protrusion and the coupling groove. The method of claim 1, The support portion extends from the step of the body toward the drilling portion, the stopper for the dental drill, characterized in that it has a length adapted to the drilling depth of the dental drill. The method of claim 1, The support portion has a stopper for a dental drill, characterized in that the upper portion has a stop in contact with the step of the body. The method of claim 8, Engaging projections are formed on the inner side of the extension to prevent the stopper from escaping in the direction of the drilling portion. On the inner side of the extension is formed a recess for receiving the step of the body between the binding protrusion and the support, The stopper of the dental drill, characterized in that the stepped portion of the body is received and fixed by the stopper and the engaging projection.

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