WO2009151276A2

WO2009151276A2 - Drill for implant operations

Info

Publication number: WO2009151276A2
Application number: PCT/KR2009/003116
Authority: WO
Inventors: 이순호
Original assignee: 주식회사 메가젠임플란트
Priority date: 2008-06-13
Filing date: 2009-06-10
Publication date: 2009-12-17
Also published as: WO2009151276A3; KR20090129672A; TW201004608A; KR100981718B1; TWI371263B

Abstract

Disclosed is a drill for implant operations. The drill for implant operations of the present invention includes a drilling body comprising a hollow cylindrical shape and having a top with a cutter, and a female screw unit arranged on an inner wall of the drilling body to catch a part of an alveolar bone separated from the latter during the drilling of the alveolar bone. The present invention enables alveolar bone drilling processes to be carried out with ease, and enables fragments of alveolar bone to be removed with ease during the drilling of the alveolar bone, thus shortening the time required for drilling the alveolar bone.

Description

Implant Drills

The present invention relates to a drill for implant surgery, and more particularly, to a drill for implant surgery that can easily and safely perform alveolar bone drilling, and can easily remove alveolar bone fragments generated during alveolar bone drilling. will be.

Implant (implant) refers to a substitute that is originally restored when human tissue is lost, but in the dentist refers to the implantation of artificial teeth. In order to replace the lost tooth root (tooth root), the tooth root made of titanium (titanium), etc., which is not rejected by the human body, is planted in the alveolar bone where the tooth falls out, and the artificial tooth is fixed to restore the function of the tooth.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged over time, but the implants do not damage the surrounding dental tissues, and they have the advantage that they can be used semi-permanently because they have the same function or shape as natural teeth and do not cause tooth decay.

Implants also enhance the function of dentures and improve the aesthetic aspects of dental prosthetic restorations, as well as in single brace restorations, as well as in partial and complete teeth. Furthermore, it disperses excessive stress on surrounding supportive bone tissue and helps stabilize teeth.

On the other hand, the implant success rate in the maxillary posterior part is known to be relatively low compared to the success rate in other parts, for example, the mandibular posterior part during such implantation procedure. This is because it is not easy to implant.

In other words, the maxillary sinus, which is located between the upper molar and, more precisely, the upper molar and the side of the nose, is a space surrounded by the mucous membrane and expands downward when the tooth is lost physiologically. As a result of the bone absorption, the amount of bone that can be implanted is insufficient due to the downward expansion, which makes it difficult to implant the implant into the maxillary posterior molar.

In this case, after forming a space by elevating the maxillary sinus lining, a bone graft material is implanted in the secured space, and implantation is implanted therein. Such methods include a vertical approach and a lateral approach.

First, the vertical approach is a method of securing a certain amount of residual bone in the implant site, and tapping the maxilla several times with a device called a chisel and hammer-shaped osteotomes to prevent damage to the maxillary sinus lining. Then, a little bit of bone graft material through the hole.

However, when using such a vertical approach, because the maxillary sinus lining cannot be seen directly during the procedure, the procedure takes a long time because the operation is performed very carefully while checking the process by X-rays.

In addition, the lateral approach is a method when the remaining bone of the implant site is very insufficient, forming a hole on the side of the maxillary sinus, elevating the lining of the maxillary sinus, and transplanting a bone graft material through the hole. By the way, this method has the advantage that the procedure can be faster than the vertical approach, there is a concern that the edema may occur in the treatment site as well as the operation itself is difficult.

Therefore, in order to solve these problems, in recent years, maxillary sinus elevation using a general implant drill has been studied, and furthermore, it is actually applied.

By the way, the maxillary sinus elevation using the general implant treatment drill has the advantage that the maxillary perforation can be easily and fast time, but when the maxillary perforation, the maxilla is not precisely cut but can be irregularly cut, and also the tip of the implant drill A problem may occur in which damage such as tearing of the maxillary sinus lining occurs in contact with the maxillary sinus lining.

Therefore, in the implant procedure including such maxillary sinus elevation, it is easy and safe to perforate the alveolar bone, and in particular, it is necessary to develop an implant procedure drill that does not damage the maxillary sinus lining when cutting the alveolar bone adjacent to the maxillary sinus lining.

An object of the present invention, it is possible to easily perform the alveolar bone drilling operation, it is also possible to easily remove the alveolar bone fragments generated during the alveolar bone drilling operation to provide a drill for implant treatment that can shorten the time required for the alveolar bone drilling will be.

Another object of the present invention is to provide an implant procedure drill that can puncture the alveolar bone until the maxillary lining of the maxillary sinus is partially exposed, and can also prevent damage to the maxillary sinus lining.

According to the present invention, the alveolar bone drilling operation can be easily performed, and the alveolar bone fragments generated during the alveolar bone drilling operation can be easily removed, thereby reducing the time required for the alveolar bone drilling.

In addition, the alveolar bone may be perforated until the maxillary sinus lining is partially exposed, and further, the maxillary sinus lining may be prevented from being damaged.

1 is a perspective view of a guide drill used in maxillary sinus elevation.

2 is a view for explaining the process of drilling the alveolar bone by the guide drill shown in FIG.

Figure 3 is a perspective view of the drill for the implant procedure according to an embodiment of the present invention.

4 is a view for explaining the process of drilling the alveolar bone by the implant treatment drill of FIG.

5 is a perspective view of a drill for implant surgery according to another embodiment of the present invention.

6 is a view for explaining the process of drilling the alveolar bone by the implant treatment drill of FIG.

Fig. 7 is a perspective view showing the maxillary sinus elevation mechanism for elevating the maxillary sinus lining.

FIG. 8 is a view for explaining a process in which the maxillary sinus lining is elevated by the maxillary sinus elevation instrument of FIG. 7.

Figure 9 is a perspective view of the pressure drill for pressing the bone graft material between the maxillary sinus lining and alveolar bone.

10 is a view for explaining the process of pressing the bone graft material by the pressure drill of FIG.

The above object, according to the present invention, is provided in a hollow cylindrical shape and a perforated body provided with a cutter on the upper end; And a female screw portion provided on the inner wall of the perforated body to catch the alveolar bone portion separated from the alveolar bone when the alveolar bone is punctured.

Here, the female screw portion is preferably provided in a ratchet type to catch the alveolar bone portion only when rotating in one direction.

The side wall of the perforated body may be formed through the discharge hole so that the mechanism for pushing out the alveolar bone portion caught by the female screw portion to the outside by the drilling operation can be drawn in or drawn out.

The side wall of the perforated body may be provided with an incision section connecting the discharge hole from the upper end of the perforated body so that the upper end of the perforated body can expand and contract in the outward and inward directions.

The lower end of the perforated body may be provided with a coupling body provided with a coupling groove that is detachably coupled to the mechanism for manually rotating the drill for drilling.

It is formed extending from the lower end of the coupling body, and further comprises a perforated rod provided with a connection groove at the end to be connectable to the handpiece for providing a rotational force, the inner side of the perforated rod as a work site during the perforation work for the alveolar bone Through holes may be formed that communicate with each other along the axial direction to provide saline.

In addition, the other object, according to the present invention, a cutting body provided with a first cutting portion for cutting at least one area of the inner wall of the alveolar bone in at least one area of the outer surface; And coupled to the upper end of the cutting body, the surface is achieved by a drill for implant treatment, characterized in that it comprises an inner film contact body coated with a diamond material.

Here, the upper end portion of the inner membrane contact body is provided in a substantially hemispherical shape, the side of the inner membrane contact body is preferably provided with a second cutting portion for performing the cutting with the first cutting portion of the cutting body.

The first cutting part and the second cutting part may be reverse cutters in which blades are formed to cut when the cutting drill is retracted.

The lower end of the intima contact body is provided with a larger diameter than the upper end of the intima contact body, and the outer periphery of the lower end of the intima contact body is rounded to prevent damage to the maxillary sinus lining when contacted with the maxillary sinus lining. rounding).

A cutting rod is formed extending from the lower end of the cutting body, the cutting rod is provided at the end so as to be connected to the handpiece for providing a rotational force, the cutting rod and the inner membrane contact body inside the cutting rod By cutting through the alveolar bone may be formed through holes penetrating along the axial direction to provide saline to the work site.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

Hereinafter, the drill for the implant procedure according to the present invention will be described, but will be described in the case where the implant treatment drill according to the present invention is applied to the maxillary sinus elevation.

Maxillary sinus elevation refers to a method of elevating the lining of the maxillary sinus located inside the alveolar bone in a direction away from the alveolar bone after perforating the alveolar bone to secure a space for implantation of the implant. Thus, a number of configurations are needed to puncture the alveolar bone and elevate the maxillary sinus lining.

Hereinafter, a plurality of configurations applied to the maxillary sinus elevation, that is, not only to confirm the position of the implant (not shown) in the alveolar bone 5, but also to guide the drill (100, Figs. And perforating the alveolar bone 5 to a portion adjacent to the maxillary sinus lining 3 located inside the alveolar bone 5 and entering the hole of the alveolar bone 5 drilled a predetermined depth by the guide drill 100. Drill 200 for implants according to an embodiment of the present invention is provided with a female threaded portion 213 therein for catching the alveolar bone (5a, see Fig. 4) of the piece generated by the 4, hereinafter referred to as a 'drill for drilling', and the alveolar bone is inserted into the hole of the alveolar bone 5 drilled by the drill 200, and the upper surface is in contact with the maxillary sinus lining 3. Another thread of the invention for cutting the inner part of (5) Implant treatment drill according to an example (see FIGS. 5 and 6, hereinafter referred to as 'cutting drill') and the maxillary sinus lining (3) exposed by the cutting drill 300 is spaced apart from the alveolar bone Maxillary sinus elevation mechanism 400 (see FIGS. 7 and 8) that not only raises in the direction but also removes the remaining portion 5c (see FIG. 8) of the alveolar bone 5 generated by the shape of the cutting drill 300. , The pressure drill for uniformly pressing the bone graft material (8) between the maxillary sinus lining (3) and alveolar bone (5) after filling the bone graft material (see Fig. 10) in the space where the maxillary sinus lining (3) is elevated 500, 9 and 10) will be described in sequence.

1 is a perspective view of a guide drill used for maxillary sinus elevation, and FIG. 2 is a view for explaining a process in which the alveolar bone is punctured by the guide drill shown in FIG. 1.

As shown in these figures, the guide drill 100 is provided in a hollow cylindrical shape, the upper end portion is provided with a guide body 110, which is provided with a regular cutter 111, and stands in the inner center of the guide body 110 It is provided so as to protrude more than the cutter 111 of the guide body 110 is formed to extend from the lower portion of the point portion 120 and the lower end of the guide body 110 to point the center of the alveolar bone 5 to be punctured A guide rod 130 having a connection groove 131 formed at an end thereof is provided. Here, the shaft center of the point portion 120 and the virtual shaft center of the guide body 110 substantially coincide so that the tip portion of the point portion 120 may accurately point the center of the alveolar bone 5 to be drilled.

The serrated cutter 111 provided at the upper end of the guide body 110 forms a shallow hole primarily in the alveolar bone 5 in which the implant is to be placed. For example, when the length from the surface of the alveolar bone 5 to the maxillary sinus lining 3 is approximately 5 mm, the guide body 110 performs a drilling operation to a depth of about 2 mm from the surface of the alveolar bone 5. At this time, the point portion 120 provided in the inner center portion of the guide body 110 marks the center of the alveolar bone 5 to be perforated.

That is, after performing the drilling operation to the predetermined depth with the guide drill 100, the guide drill 100 is removed from the alveolar bone 5, and the center of the hole of the perforated alveolar bone 5 is indicated by the point portion 120. The points are marked. Therefore, the punched shape of the alveolar bone 5 can be clearly confirmed after the punching operation of the guide drill 100, and furthermore, the drilling drill 200 to be described later can be positioned at the correct position, and then the punching operation can be executed.

In addition, the side walls of the guide body 110, as shown in Figures 1 and 2, the discharge hole 212 is formed. By inserting a separate mechanism (not shown) into the discharge hole (212) after the drilling operation, the alveolar bone (5), etc., which may remain inside the guide body 110 during the drilling operation of the alveolar bone (5) to the outside It can be taken out easily. In addition, by providing the saline solution directly to the discharge hole 212, the drilling operation may proceed smoothly.

As shown in FIG. 1, the guide rod 130 is provided with a connecting groove 131 at the end of which a handpiece (not shown) for detachably coupling is detachably coupled to the guide rod 130. In addition, a through hole (not shown) communicating with the inner space of the guide body 110 may be formed inside the guide rod 130. When the through-hole is formed in the guide rod 130, the saline solution can be provided to the inside of the guide rod 130 can be carried out a more smooth drilling operation.

As described above, the guide drill 100 performs the drilling operation primarily on the alveolar bone 5 in which the implant is placed, while accurately displaying the center of the alveolar bone 5 to be drilled by the point portion 120 for drilling. The drill 200 allows the drilling operation to be performed at the correct position.

Figure 3 is a perspective view of an implant treatment drill according to an embodiment of the present invention, Figure 4 is a view for explaining the process of drilling the alveolar bone by the implant treatment drill of FIG.

As shown in these drawings, the implant drill, that is, the drill drill 200 according to an embodiment of the present invention, is inserted into the hole of the alveolar bone 5 primarily drilled by the guide drill 100 A drill for drilling the alveolar bone (5) to a portion adjacent to the maxillary sinus lining (3), which is provided in a hollow cylindrical shape and has a cutter 211 substantially similar to the cutter 111 of the guide drill 100 described above at the upper end. The female body 213 and the inner threaded portion (213) for catching the alveolar bone (5a) of the pieces generated during the drilling operation for the alveolar bone (5) provided in the inner side of the perforated body (210), and the perforated body (210) A coupling body 220 provided with a coupling groove 221 which is provided at a lower end and a mechanism for manually rotating the drill 200 for drilling is formed, and extends from a lower end of the coupling body 220 and is connected to an end of the coupling groove ( 231 has perforated rod 230 formed therein do.

As shown in FIG. 3, the drilling body 210 has a sawtooth cutter 211 formed at the upper end thereof so as to perform a drilling operation on the alveolar bone 5, and an internal thread part 213 is formed inside the drilling body 210. Formed. The perforated body 210 serves to cut the inner portion of the alveolar bone 5 adjacent to the maxillary sinus lining 3. That is, as described above, when the thickness of the alveolar bone 5 is 5 mm, the alveolar bone 5 is drilled by about 2 mm by the cutter 111 of the guide drill 100, and the cutter of the drill 200 for drilling. By 211, it is perforated to the point which is about 1 mm from the maxillary sinus lining 3, ie, the part which is 4 mm from the surface of the alveolar bone 5.

Therefore, the perforated body 210 is preferably provided longer than the guide body 110, the female screw portion on the inner side of the perforated body 210 to be drawn out in a state of catching the carving alveolar bone (5a) generated during the drilling operation 213 is formed.

The female screw part 213 of this embodiment is provided regularly from the upper end of the inner wall of the perforated body 210 to a lower end direction. The female screw portion 213 is provided in a ratchet type to be able to move and catch inside the alveolar bone 5 only when the perforated body 210 rotates in one direction. That is, when the perforated body 210 rotates in one direction toward the inner side of the alveolar bone 5 and moves forward, the perforated alveolar bone 5a is inserted into the female screw part 213 and caught, and the perforated body after the work is completed. When the alveolar bone 5a of the piece caught in the female threaded portion 213 is maintained as it is when the 210 is rotated in the opposite direction and removed from the alveolar bone 5, the alveolar bone 5a of the piece is perforated with the perforated body 210. It can be discharged to the outside together. Therefore, it is not necessary to remove the alveolar bone (5a) of the perforated piece from the alveolar bone (5) by dedicating a separate time after the drilling operation can shorten the time required for the drilling operation.

In addition, the side wall of the perforated body 210 is formed through the discharge hole 212 substantially similar to the entrance hole 112 of the above-described guide body 110 (see FIG. 2). As described above, during the drilling operation for the alveolar bone 5, the alveolar bone 5a of the piece remains inside the perforated body 210. This piece of alveolar bone 5a should be removed from the female threaded portion 213. A device (not shown) for removing the alveolar bone 5a of the piece is introduced into the discharge hole 212, thereby bringing the alveolar bone 5a of the piece outward. By pushing, the alveolar bone 5a of the piece can be easily removed.

However, at this time, since the alveolar bone 5a of the pieces remain in a state sandwiched in the female threaded portion 213 formed regularly, it may not be easily removed in some cases. Therefore, for this purpose, as shown in FIG. 4, the perforated body 210 is provided with an incision section 215. The incision section 215 is formed by cutting in an upward direction from the upper end of the perforation body 210 to the discharge hole 212, due to the incision section 215, the perforation body 210 expands outward or contracts inwardly. Can be. Therefore, for example, when the alveolar bone 5a of the piece is to be removed from the female screw part 213, the alveolar bone 5a of the piece can be easily removed by expanding the perforated body 210 by the incision section 215.

On the other hand, when the accurate drilling operation is executed by the drilling drill 200 to perform X-ray (X-ray) during the operation for a more precise drilling operation. At this time, if the drilling drill 200 to the desired depth of the alveolar bone 5 does not puncture, the drilling work should be further performed by the drilling drill 200, in which case the drilling drill 200 by the handpiece Rather than rotating it, a separate mechanism (not shown) is mounted in the coupling groove 221 of the coupling body 220 provided at the lower end of the perforated body 210 and rotates as desired.

Here, if the alveolar bone 5 is drilled after installing a separate mechanism in the coupling groove 221, the degree of advancement of the drilling drill 200 can be accurately controlled, that is, the degree of advancement can be calculated according to the number of revolutions. The operator can perform the drilling operation precisely to the desired depth.

In addition, the coupling groove 221 may be detachably coupled with a buffer member (not shown) having a cushioning property. Therefore, when the separate mechanism is mounted in the coupling groove 221 and then the drill drill 200 is rotated using the separate mechanism, the separate mechanism is more tightly bound to the coupling groove 221 for drilling. The rotation of the drill 200 can be facilitated.

As shown in FIG. 3, the drilling rod 230 is provided at its end with a connection groove 231 to which a handpiece (not shown) for providing rotational force is coupled. In addition, a through hole (not shown) communicating with an inner space of the punching body 210 may be formed inside the punching rod 230. When the through-hole is formed, the saline solution can be provided to the inside thereof, and thus a smoother drilling operation can be executed. On the other hand, the saline solution may be provided through the through hole of the drilling rod 230, it may be provided through the discharge hole 212 of the drilling body 210 during the drilling operation.

As such, according to the drill 200 for drilling according to an embodiment of the present invention, not only can the perforated alveolar bone 5 to a portion adjacent to the maxillary sinus lining 3, but also a female screw provided inside the perforated body 210. Part 213 can catch the piece alveolar bone 5 generated during the drilling operation has the advantage that it does not take a separate time for removing the piece alveolar bone (5).

5 is a perspective view of an implant treatment drill according to another embodiment of the present invention, Figure 6 is a view for explaining the process of drilling the alveolar bone by the implant treatment drill of FIG.

As shown in these figures, the implant for drill operation, that is, the cutting drill 300 according to another embodiment of the present invention, the inner portion of the alveolar bone 5 until the upper surface is in contact with the maxillary sinus lining 3. As a drill for cutting, that is, a cutting body 310 in which the reverse cutter 311 of the present embodiment is formed, protrudes from an upper surface of the cutting body 310, and has an outer surface on at least one surface of the maxillary sinus lining 3. The inner body contact body 320 for cutting the alveolar bone 5 between the hole of the alveolar bone 5 and the maxillary sinus lining 3 until it is folded, and is formed to extend from the lower end of the cutting body 310 to provide rotational force. It includes a cutting rod 330 is formed with a connection groove 331 detachably coupled to an external device, that is, a handpiece (not shown). Here, the inner film contact body 320 and the cutting rod 330 provided at the upper and lower portions of the cutting body 310 are provided integrally with the cutting body 310.

First, as shown in FIG. 5, the cutting body 310 is provided in a tapered shape in which the diameter gradually decreases from the upper end to the lower direction, and the first body for cutting the alveolar bone 5 along the circumferential direction thereof. The cutting portion 311, that is, the reverse cutter 311 of the present embodiment is formed regularly.

The cutting body 310 having such a structure is a hole of the alveolar bone 5 drilled to a predetermined depth, for example, about 1 mm from the maxillary sinus lining 3 by the drilling drill 200 described above. The inner portion of the hole of the alveolar bone 5 is cut until the inner membrane contact body 320 provided at the upper end of the cutting body 310 contacts the maxillary sinus lining 3.

The inner membrane contact body 320 is a portion protruding from the upper surface of the cutting body 310 and is an inner portion 5b of the alveolar bone 5 between the bottom face of the hole formed by the drilling drill 200 and the maxillary sinus lining 3. 4) to serve as cutting.

The intimate contact body 320 is the cutting body 310 described above on the outer surface of the intima contact body 320 to cut the inner portion 5b of the alveolar bone 5 until it contacts the maxillary sinus lining 3. The second cutting portion 321 extending from the first cutting portion 311 of the, i.e., the reverse cutter 321 of the present embodiment is formed.

Therefore, when cutting the inner portion 5b of the alveolar bone 5 using the reverse cutter 311 of the cutting body 310 and the reverse cutter 321 of the inner membrane contact body 320, the reverse cutter 311, By the structure of the 321, the alveolar bone 5 can be prevented from being excessively cut. That is, since the reverse cutter 311 of the cutting body 310 and the reverse cutter 321 of the inner membrane contact body 320 are provided so that the tip thereof has a direction opposite to the rotational direction of the cutting body 310, that is, Since the

cutters

311 and 321 are arranged such that the cutting body 310 is cut by the blade when the cutting body 310 is retracted, the cutting body 310 and the inner membrane contact body 320 rotate in contact with the alveolar bone 5 to move forward. When cutting the inner portion (5b) of the alveolar bone (5) to be cut when cutting with a sharp blade can be cut through one surface of the blade is provided relatively smoothly.

In particular, in the case of the second cutting part 321, the inner side portion 5b of the alveolar bone 5 adjacent to the maxillary sinus lining 3 may be precisely provided in a straight section of the side portion rather than the curved surface of the inner membrane contact body 320.

On the other hand, the inner membrane contact body 320, as shown in Figures 5 and 6, the upper end portion in contact with the maxillary sinus lining (3) is provided in a hemispherical shape, diamond particles 325 is evenly distributed over the entire surface of the portion. Coated. Even when the hemispherical shape of the inner membrane contact body 320 and the coating of the diamond particles 325 are in contact with the outer surface of the maxillary sinus inner membrane 3 and the inner membrane contact body 320, damage to the maxillary sinus inner membrane 3 does not occur.

In addition, since the diamond particles 325 are uniformly coated on the outer surface of the inner membrane contact body 320, even when the maxillary sinus lining 3 and the inner membrane contact body 320 are in contact with each other, the pressure can be uniformly distributed, thereby causing the maxillary sinus lining Damage to (3) can be prevented. In more detail, the alveolar bone particles cut from the alveolar bone 5 are disposed between the diamond particles 325 when the drilling operation is performed using the drilling drill 300. Such diamond particles 325 and the alveolar bone particles Even if the uniformly placed inner membrane contact body 320 is rotated in contact with and in contact with the maxillary sinus lining 3, the diamond particles 325 and alveolar bone particles support the balanced maxillary lining without damaging the maxillary sinus lining 3. It is possible to prevent the maxillary sinus lining 3 from being damaged by the lining contact body 320.

On the other hand, the lower end of the inner membrane contact body 320 is provided with a larger diameter than the upper end, the outer periphery of the lower end is rounded (rouding) process. This serves to limit the advancing of the intima contact body 320 in the direction of the maxillary sinus lining 3 to some extent, thereby preventing the maxillary sinus lining 3 from being damaged. In addition, since the rounding process may prevent the maxillary sinus lining 3 from being damaged even when the lower end portion of the inner membrane contact body 320 contacts the maxillary sinus lining 3.

Meanwhile, as described above, the first cutting portion 311 of the cutting body 310 and the second cutting portion 321 of the inner film contacting body 320 are extended. The first cutting unit 311 and the second cutting unit 321 may be applied as a reverse cutter, but may also be used as a saline solution path as needed. That is, during the drilling operation, by providing the saline solution along the reverse cutter (311, 321), the drilling operation by the cutting drill 300 can be performed more smoothly. However, in the present exemplary embodiment, the first cutting part 311 and the second cutting part 321 are provided as reverse cutters, but may be provided as grooves instead of reverse cutters.

As shown in FIG. 5, the cutting rod 330 extends from the lower end of the cutting body 310 and is connected to a handpiece (not shown) that provides rotational force. Since the cutting rod 330 of the cutting drill 300 is substantially the same as the guide rod 130 of the guide drill 100 and the drilling rod 230 of the drilling drill 200, a description thereof will be omitted. Shall be.

Thus, according to the cutting drill 300 according to another embodiment of the present invention, the inner portion 5b of the alveolar bone 5 until at least one surface of the inner membrane contact body 320 is in contact with the maxillary sinus lining 3. Can be cut, evenly coated with the diamond particles 325 on the outer surface of the inner membrane contact body 320, the maxillary sinus lining (3) and the inner membrane contact body 320, even if rotated in contact with the maxillary sinus lining (3) There is an effect that can prevent this damage.

FIG. 7 is a perspective view illustrating a maxillary sinus elevation mechanism for elevating the maxillary sinus lining, and FIG. 8 is a view for explaining a process in which the maxillary sinus lining is elevated by the maxillary sinus elevation instrument of FIG. 7.

As shown in these figures, the maxillary sinus elevation mechanism 400 not only rises to the maxillary sinus lining 3 which is partially exposed by the cutting drill 300 but also remains due to the shape of the cutting drill 300. As a mechanism for removing the alveolar bone remaining portion (5c, see Fig. 8), the handle body 410, and is provided at both ends of the handle body 410, the end of the coarse for raising the maxillary sinus lining (3) The pair of coarse bodies 420 provided with the member 421 is provided.

In the handle body 410, in order to prevent the operator's hand from slipping from the handle body 410 when gripping, a non-slip portion 411 is formed regularly.

The coarse body 420 has a longitudinal direction substantially the same as that of the handle body 410, but the center of the coarse member 421 provided at the end of the coarse body 420 can be easily introduced into or withdrawn from the hole of the alveolar bone 5. Is formed in the bending portion.

The upper member 421 has a rounded upper surface in contact with the maxillary sinus lining 3 to prevent damage to the maxillary sinus lining 3 when the maxillary sinus lining 3 is elevated in contact with the maxillary sinus lining 3. rounding). In addition, after raising the maxillary sinus lining 3, at least a portion of the side end of the elevation member 421 is used to cut the remaining portion 5c of the alveolar bone 5 remaining by the shape of the cutting drill 300. It is sharply formed. That is, the coarse member 421 may be provided in the shape of a hemispherical shape.

In addition, when raising the maxillary sinus lining 3 with the coarse member 421, a plurality of scales may be provided on the upper portion of the coarse body 420 provided with the coarse member 421 to check the degree of elevation of the maxillary sinus lining 3. 423 is indicated.

As described above, according to the maxillary sinus elevation mechanism 400, the maxillary sinus lining 3 can be elevated without damage, and the remaining alveolar bone 5 remaining portion 5c is cut by the shape of the cutting drill 300. This allows for a space for implant placement.

Figure 9 is a perspective view of the pressure drill for pressing the bone graft material between the maxillary sinus lining and alveolar bone, Figure 10 is a view for explaining the process of pressing the bone graft material by the pressure drill of FIG.

As shown in these figures, the pressure drill 500 is a drill for pressing the bone graft material 8 introduced into the space (3s, see Fig. 8) generated by raising the maxillary sinus lining 3, the bone graft material (8) and a pressing body 510 for pressurizing, and a connecting groove 531 is formed extending from the lower end of the pressing body 510 and detachably coupled with a handpiece (not shown) for providing rotational force is formed. The pressing rod 530 is provided.

The pressing body 510 is formed with a regular groove 511 on the outer side, the upper end is provided in a convex shape for pressing the bone graft material (8) in the outward direction. Therefore, when the pressurized body 510 rotates and is pulled in the direction of the maxillary sinus lining 3, the bone graft material 8 filled in the space 3s formed by the elevation of the maxillary sinus lining 3 is the maxillary sinus lining 3 and the alveolar bone 5. It can be pressurized evenly and densely.

As shown in FIG. 9, the pressure rod 530 extends from the lower end of the pressure body 510 to be connected to the handpiece providing rotational force. The pressure rod 530 of the pressure drill 500 is substantially similar to the above-described guide rod 130, the punching rod 230 and the cutting rod 330, the through hole for the saline movement is not formed. Description thereof will be omitted.

As described above, according to the pressure drill 500, the bone graft material 8 filled in the space 3s formed by the maxillary sinus lining 3 is elevated between the maxillary sinus lining 3 and the alveolar bone 5 while being uniform. It can be pressurized so that there is an effect that the fixture (not shown) of the implant to be later placed is firmly supported.

Hereinafter, a method of using an implant drill according to the present invention will be described with reference to maxillary sinus elevation, which is one of the implant procedures.

First, a shallow hole is formed using a guide drill 100 at a position where an implant is to be placed, for example, the alveolar bone 5 of the maxillary posterior molar, and the center of the formed hole is indicated. In other words, using the guide drill 100 to form a shallow hole from the maxillary sinus lining (3) to a position adjacent to approximately 3mm, at this time, the alveolar bone (5) in which the point portion 120 protruding from the guide body 110 is drilled. Mark the position in the center of the hole.

Subsequently, holes are formed from the maxillary sinus lining 3 to a position adjacent to the maxillary sinus lining 3 using the drilling drill 200, which is a drill 200 for implant surgery according to an embodiment of the present invention. In this case, the center of the drilling drill 200 should be aligned with the center of the hole indicated by the guide drill 100. On the other hand, when the drilling drill 200 forms a hole of the alveolar bone 5 to a position approximately 2 mm adjacent to the maxillary sinus lining 3, a hole is formed by using the rotational force of the handpiece, and then the operator has a position up to approximately 1 mm adjacent. Directly rotating the drilling drill 200 to execute the drilling operation.

That is, when rotating the drilling drill 200 with the handpiece can not accurately control the drilling operation of the drilling drill 200, but if the operator directly rotates the drilling drill 200 to work the alveolar bone to the desired depth The hole of (5) can be formed. To this end, the drilling drill 200 is provided with a coupling groove 221 for rotating the drilling drill 200 by the number of revolutions desired by the operator, and the operator has a separate mechanism (not shown) in the coupling groove 221. After mounting, rotate the desired number of revolutions and execute the drilling operation. At this time, the hole depth of the perforated alveolar bone 5 can be confirmed through X-ray photographing or the like.

After drilling to a certain depth with the drilling drill 200, the drilling drill 200 is removed from the alveolar bone 5, and then the alveolar bone 5a of the piece inserted into the drilling body 210 of the drilling drill 200. Remove it. Here, the ratchet type female threaded portion 213 is provided inside the perforated body 210 so that the alveolar bone 5a of the perforated piece can be easily taken out to the outside.

Thereafter, the drill 300 for cutting according to the implant 300 is inserted into the hole of the alveolar bone 5 according to another embodiment of the present invention, and the inner membrane contact body 320 of the cutting drill 300 is the maxillary sinus. The punching operation is performed until it contacts the inner film 3. The inner portion 5b of the alveolar bone 5 by the first cutting portion 311 of the cutting body 310 and the second cutting portion 321 of the inner membrane contact body 320 during the drilling operation by the cutting drill 300. ) Can be evenly cut, and the diamond particles 325 are evenly coated on the upper surface of the intima contact body 320 so that the intima contact body 320 does not damage the maxillary sinus lining 3 and the maxillary sinus lining 3. The contact state can be maintained. At this time, the maxillary sinus lining 3 may be slightly elevated by the lining contact body 320.

Next, the maxillary sinus elevation mechanism 400 is introduced into the hole of the alveolar bone 5 to elevate the partially exposed maxillary sinus lining 3. Furthermore, after raising the maxillary sinus lining 3, the remaining portion 5c of the alveolar bone 5 remaining by the shape of the cutting drill 300 is removed using the maxillary sinus elevation mechanism 400.

Then, after filling the bone graft material (8) in the space (3s) formed by the maxillary sinus lining (3) elevation operation, the bone graft material (8) using the pressure drill 500 to the maxillary sinus lining (3) and alveolar bone (5) Press evenly and uniformly between the layers.

As such, according to the drill 200 for drilling according to an embodiment of the present invention, it is possible to easily execute the alveolar bone drilling operation, it is also possible to easily remove the alveolar bone fragments generated during the alveolar bone drilling work required for alveolar bone drilling This can shorten the time it takes.

In addition, according to the drill 300 for cutting according to another embodiment of the present invention, the alveolar bone can be perforated until the maxillary sinus lining is partially exposed, and there is an effect of preventing the maxillary sinus lining from being damaged.

On the other hand, the present invention is not limited to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

Claims

A perforated body provided in a hollow cylindrical shape and provided with a cutter at its upper end; And

And a female screw provided on the inner wall of the perforated body to catch the alveolar bone portion separated from the alveolar bone when the alveolar bone is punctured.
The method of claim 1,

The female screw portion, the implant treatment drill, characterized in that provided in a ratchet (ratchet) type to catch the alveolar bone portion only when rotated in one direction.
The method of claim 1,

The side wall of the drilling body is drilled for implant treatment, characterized in that the discharge hole is formed so that the mechanism for pushing out or withdraw the alveolar bone portion caught to the female screw portion by the drilling operation to the outside.
The method of claim 3,

The side wall of the perforated body, the implant section drill is provided with an incision section connecting the discharge hole from the upper end of the perforated body so that the upper end of the perforated body can expand and contract in the outward and inward direction.
The method of claim 1,

The lower end of the drilling body is implant drill, characterized in that the coupling body is provided with a coupling groove that is detachably coupled to the mechanism for manually rotating the drilling drill.
The method of claim 5,

It is formed extending from the lower end of the coupling body, and further comprises a punching rod provided with a connection groove at the end to be connectable with the handpiece for providing rotational force,

The inner side of the perforated rod is implant drill, characterized in that the through-hole is formed in communication with each other along the axial direction to provide the saline to the work site during the drilling operation for the alveolar bone.
A cutting body provided with at least one region of the outer surface a first cutting portion for cutting at least one region of the inner wall of the alveolar bone by rotation; And

It is coupled to the upper end of the cutting body, the drill for implant treatment, characterized in that it comprises an inner film contact body is coated with a diamond material surface.
The method of claim 7, wherein

The upper end of the inner membrane contact body is provided in a substantially hemispherical shape,

And a second cutting portion for cutting together with the first cutting portion of the cutting body on a side portion of the inner film contact body.
The method of claim 8,

The first cutting portion and the second cutting portion, the drill for implant treatment, characterized in that the cutting cutter is a reverse cutter is formed so that the cutting is made when retreating.
The method of claim 8,

The lower end of the intima contact body is provided with a larger diameter than the upper end of the intima contact body, and the outer periphery of the lower end of the intima contact body is rounded to prevent damage to the maxillary sinus lining when contacted with the maxillary sinus lining. rounding) drill for implant treatment, characterized in that the treatment.
The method of claim 8,

It is formed extending from the lower end of the cutting body, and further comprises a cutting rod is provided with a connection groove at the end to be connectable to the handpiece for providing a rotational force,

Implant treatment, characterized in that the through-hole is formed through the axial direction in order to provide saline to the work site when cutting the alveolar bone by the rotation of the cutting body and the inner membrane contact body inside the cutting rod Drill.