KR100981717B1 - Drill Tool for Lifting Sinus - Google Patents

Abstract

A maxillary sinus elevation drill tool is disclosed. The maxillary sinus elevation drill tool of the present invention is a maxillary sinus elevation drill tool for raising the maxillary sinus lining located inside the alveolar bone after perforating the alveolar bone to implant the implant, the perforation of the alveolar bone to the adjacent region of the maxillary sinus lining A drill for drilling, including a common drill, is provided in a hollow cylindrical shape and the cutter is 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. According to the present invention, the perforation of the alveolar bone for implantation proceeds sequentially by a plurality of drills to form a solid hole in the alveolar bone, and also to make the elevation of the maxillary sinus lining more stable. Damage can be prevented, which makes the implant procedure more reliable.

Implant, Drill, Maxillary Sinus, Diamond, Drilled, Cut

Description

Drill tool for lifting maxillary sinus

The present invention relates to a drill tool for maxillary sinus elevation, and more particularly, the drilling of the alveolar bone for implantation proceeds sequentially by a plurality of drills to form a solid hole in the alveolar bone, and also to the maxillary sinus lining The present invention relates to a drilling tool for the maxillary sinus, which can more stably work on the maxillary sinus and prevent the damaging of the lining of the maxillary sinus.

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 esthetic aspects of dental prosthetic restorations, as well as in single brace restorations, and in partially degenerative and complete teethless patients. 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, because the maxillary posterior part is relatively weak in bone and has the maxillary sinus inside. 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.

By the way, when using this vertical approach, because the maxillary sinus lining cannot be seen directly during the procedure, the procedure takes a long time because the procedure 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, recently, 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 drill has the advantage that the maxillary perforation can be easily and quickly timed, but the maxillary bone can be irregularly cut instead of exquisitely cutting the maxillary perforation, and the tip of the implant drill is also maxillary sinus Damage to the inner lining of the maxillary sinus may occur due to contact with the inner lining, which may cause a problem of failing to accurately elevate the lining of the maxillary sinus and not allowing sufficient space for implant implantation.

Therefore, the situation is required to develop a new drill structure for the maxillary sinus lining that can not only accurately form a hole in the alveolar bone but also to raise the maxillary sinus lining without damage.

It is an object of the present invention, the perforation of the alveolar bone for the implant procedure is progressed sequentially by a plurality of drills to form a solid hole in the alveolar bone, and also to make the elevation of the maxillary sinus lining more stable, the maxillary sinus lining This damage can be prevented, thereby providing a drill tool for the maxillary sinus, which makes the implant procedure more reliable.

According to the present invention, in the maxillary sinus elevation drill tool for raising the maxillary sinus lining located inside the alveolar bone after perforating the alveolar bone in order to implant the implant, perforating the alveolar bone to the adjacent region of the maxillary sinus lining It includes a drill for drilling, the drill for drilling, the drilling body is provided in a hollow cylindrical shape and the cutter is provided at 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 is preferably formed through the discharge hole so that a mechanism for pushing out the alveolar bone portion to be caught to the female screw portion by the drilling operation to the outside 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, according to the present invention, in the maxillary sinus elevation drill tool for elevating the maxillary sinus lining located inside the alveolar bone after drilling the alveolar bone to implant the implant, at least a portion of the upper surface is in the maxillary sinus lining And a cutting drill for cutting the alveolar bone until contact, wherein the cutting drill has a first cutting portion for cutting at least one region of the inner wall of the alveolar bone by rotation in at least one region of the outer surface. Cutting body; And is coupled to the upper end of the cutting body, it is also achieved by a maxillary sinus elevation drill tool, characterized in that it comprises an inner film contact body is 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.

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 When the alveolar bone is to be cut by the through hole is preferably formed along the axial direction to provide the saline solution to the work site.

In addition, according to the present invention, in the maxillary sinus elevation drill tool for elevating the maxillary sinus lining located inside the alveolar bone after drilling the alveolar bone to implant the implant, comprising a guide drill for drilling the alveolar bone and The guide drill comprises: a guide body having a cutter for cutting the alveolar bone at an upper end thereof; And a point that is spaced apart from the guide body and is provided to protrude upward more than an upper end of the guide body, and points a center of a portion of the implant fixture to be placed in the alveolar bone. It is also achieved by a drill tool for maxillary sinus elevation, comprising a part.

Here, the cutter is provided in a sawtooth shape, it is preferable that the axial center of the point portion and the virtual shaft center of the guide body provided in a hollow cylindrical shape substantially coincide.

It is formed extending from the lower end of the guide body, and further comprises a guide rod is provided with a connecting groove at the end to be connected to the handpiece for providing a rotational force, the inside of the guide rod work when marking the puncture position on the alveolar bone A through hole penetrating along the axial direction may be formed to provide saline to the site.

In addition, the above object, according to the present invention, a guide drill provided with a cutter for cutting the alveolar bone at the upper end; A drill for drilling the alveolar bone until it is adjacent to the maxillary sinus lining located inside the alveolar bone; A cutting drill inserted into a hole drilled by the drilling drill to cut a portion of the alveolar bone until at least a portion of the upper surface contacts the upper lining of the maxillary sinus; And a maxillary sinus elevation drill tool that elevates the maxillary sinus lining exposed by the cutting drill and removes the remaining portion of the alveolar bone remaining in the alveolar bone.

Here, it is preferable that the maxillary sinus lining further includes a press drill for pressing the bone graft material introduced into the inner portion of the alveolar bone.

The drilling drill is provided with a hollow cylindrical shape, the drilling body is provided with a cutter on the upper end; And a female screw portion provided on an inner wall of the perforated body to catch the alveolar bone portion separated from the alveolar bone when the alveolar bone is punctured.

The cutting drill may include: a cutting body having a first cutting part for cutting at least one area of an inner wall of the alveolar bone by rotation in at least one area of an outer surface thereof; And an inner film contact body coupled to the upper end of the cutting body and coated with a diamond material on its surface.

The guide drill, the guide body is provided with a cutter for cutting the alveolar bone at the upper end; And it is provided spaced apart from the guide body is provided to protrude further upward compared to the upper end of the guide body, it may include a point portion that points the center of the portion to be implanted implant fixture to be placed in the alveolar bone.

The maxillary sinus elevation mechanism, the handle body; And coupled to the both ends of the handle body, the end includes a pair of coarse body is provided with a coarse member for raising the maxillary sinus lining, the coarse member is the upper surface in contact with the maxillary sinus lining rounding (rounding) At least a portion of the side end portion is preferably sharply formed so as to remove the remaining portion of the alveolar bone.

The coarse body has a longitudinal direction and is formed to be bent into the hole of the alveolar bone, the coarse body adjacent to the coarse member is displayed a scale for confirming the hole depth of the alveolar bone, the sliding surface on the outer surface of the handle body It is preferable that the anti-slip portion for preventing the depression is formed regularly.

The pressing drill, the outer groove is formed with a regular groove recessed, the upper end is provided with a convex shape to press the bone graft material in the outward direction; And a pressurizing rod extending from the lower end of the pressurizing body and having a connection groove formed at an end thereof so as to be connectable with the handpiece for providing rotational force.

According to the present invention, the perforation of the alveolar bone for implantation proceeds sequentially by a plurality of drills to form a solid hole in the alveolar bone, and also to make the elevation of the maxillary sinus lining more stable. Damage can be prevented, which makes the implant procedure more reliable.

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.

1 is a perspective view of a guide drill of the maxillary sinus elevation drill tool according to an embodiment of the present invention, Figure 2 is a view for explaining the process of drilling the alveolar bone by the guide drill shown in Figure 1, Figure 3 4 is a perspective view of a drill for drilling a maxillary sinus drill drill tool according to an embodiment of the present invention, Figure 4 is a view for explaining the process of drilling the alveolar bone by the drill drill of Figure 3, Figure 5 is FIG. 6 is a perspective view illustrating a cutting drill of the maxillary sinus elevation drill tool according to an embodiment, and FIG. 6 is a view for explaining a process in which the alveolar bone is drilled by the cutting drill of FIG. 5, and FIG. 7 is an embodiment of the present invention. Fig. 8 is a view showing the maxillary sinus elevation mechanism of the maxillary sinus elevation drill tool according to the present invention. FIG. 8 is a view for explaining a process in which the maxillary sinus lining is elevated by the maxillary sinus elevation mechanism of FIG. 7, and FIG. 9 is the present invention. Is a perspective view of one embodiment for example, a drill for drilling the pressure of the maxillary sinus going commercial tool according to Fig. 10 is a view for explaining a process in which a bone graft material pressed by the pressing drill of FIG.

In one embodiment of the present invention, the maxillary sinus levitation drill tool, the guide drill 100 and the guide drill 100, which not only checks the position of the implant (not shown) to be placed in the alveolar bone 5 but primarily executes a drilling operation. The alveolar bone of the piece generated by the puncture by further drilling the alveolar bone 5 to a portion adjacent to the maxillary sinus lining 3 located inside the alveolar bone 5 by being inserted into the hole of the alveolar bone 5 drilled a predetermined depth ( 5a, see FIG. 4) to drill into the hole of the drilling drill 200 having a female threaded portion 213 therein and the alveolar bone 5 drilled by the drilling drill 200 therein. And the maxillary sinus lining 3 exposed by the cutting drill 300 and the maxillary sinus lining 3 exposed by the cutting drill 300 until the upper surface is in contact with the maxillary sinus lining 3. Not only to raise in a direction to be spaced apart by the shape of the cutting drill 300 The bone graft material (see 8, FIG. 10) is placed in the space where the maxillary sinus elevation mechanism 400 and the maxillary sinus lining 3 are elevated by removing the remaining portion 5c (see FIG. 8) of the generated alveolar bone 5. After filling the bone graft material (8) comprises a pressure drill (500) to uniformly press between the maxillary sinus lining (3) and alveolar bone (5).

Firstly drill the alveolar bone 5 shallowly using the guide drill 100 to indicate the center of the portion to be drilled (see FIG. 2), and then to the portion adjacent to the maxillary sinus lining 3 by the drilling drill 200. After drilling (5) (see FIG. 4), drilling the alveolar bone 5 (see FIG. 6) until it comes into contact with the maxillary sinus lining 3 by the cutting drill 300, and then the maxillary sinus elevation mechanism. After using the 400 to elevate the maxillary sinus lining 3 (see FIG. 8), the bone graft material 8 is introduced into the space formed by the maxillary sinus lining operation, and then the bone is pressurized using the drill 500. The implant 8 is pressed between the alveolar bone 5 and the maxillary sinus lining 3 (see FIG. 10).

Hereinafter, each configuration will be described in detail.

First, the guide drill 100 of the maxillary sinus levitation drill tool according to an embodiment of the present invention, as shown in Figures 1 and 2, is provided in a hollow cylindrical shape and a regular cutter 111 at the upper end The guide body 120 and the guide body 120, which is provided to stand in the inner center of the guide body 110 is provided to protrude more than the cutter 111 of the guide body 110 to point the center of the alveolar bone 5 to be punctured (point) The point portion 120 and the guide rod 130 is formed extending from the lower end of the guide body 110 and the connection groove 131 is formed at the end. 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 the drilling operation to the predetermined depth with the guide drill 100, the guide drill 100 is removed from the alveolar bone 5 by the point portion 120 at the center of the hole of the perforated alveolar bone 5. The marked 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 of the present embodiment is described later by accurately displaying the center of the alveolar bone 5 to be punctured by the point portion 120 while performing the drilling operation on the alveolar bone 5 having the implant placed therein. To be drilled for drilling 200 to execute the drilling operation at the correct position.

On the other hand, the drilling drill 200 of the maxillary sinus elevation drill tool according to an embodiment of the present invention is inserted into the hole of the alveolar bone (5) that is primarily punched by the guide drill 100, the maxillary sinus lining (3) A drill for drilling the alveolar bone 5 to a portion adjacent to the drill, which is provided in a hollow cylindrical shape and substantially similar to the cutter 111 of the guide drill 100 described above at the upper end, as shown in FIGS. 3 and 4. A female thread part 213 provided with a cutter body 211 and a female thread part 213 provided inside the drilling body 210 to catch the alveolar bone 5a of a piece generated during a drilling operation on the alveolar bone 5; A coupling body 220 provided at a lower end of the drilling body 210 and provided with a coupling groove 221 to which a mechanism for manually rotating the drilling drill 200 is coupled, and extending from a lower end of the coupling body 220. And the drilling rod 230 having a connection groove 231 formed at an end thereof. It is provided.

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 the perforated piece alveolar bone 5 is inserted into the female screw part 213 and is caught, and after completion of the work, the perforated body ( 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 is removed from the alveolar bone 5, the alveolar bone 5a of the piece together with the perforated body 210. It can be discharged to the outside. 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 has a connection groove 231 to which a hand piece (not shown) for providing rotational force is coupled at an end thereof. 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.

Thus, according to the drilling drill 200 of the present embodiment, not only can the perforated alveolar bone 5 to the portion adjacent to the maxillary sinus lining 3, but also the female screw portion 213 provided inside the perforated body 210 is provided. Engraving alveolar bone (5) generated during the drilling operation can be caught, there is an advantage that does not take a separate time for removing the alveolar bone (5).

On the other hand, the cutting drill 300 of the maxillary sinus elevation drill tool according to an embodiment of the present invention, a drill for cutting the inner portion of the alveolar bone (5) until the upper surface is in contact with the maxillary sinus lining (3) 5 and 6, the cutting body 310 and the upper surface of the cutting body 310, the first cutting portion 311, that is, the reverse cutter 311 of the present embodiment is formed on the outer wall An inner membrane contact body 320 which protrudes from and cuts the alveolar bone 5 between the hole of the alveolar bone 5 and the maxillary sinus lining 3 until its outer surface is folded to at least one surface of the maxillary sinus lining 3. The cutting rod 330 is formed to extend from the lower end of the body 310 and is provided with a connection groove 331 detachably coupled to an external device for providing rotational force, 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 integrally formed 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 reverse cutters 311 and 321 are arranged so 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 are rotated in contact with the alveolar bone 5. Instead of cutting the inner portion 5b of the alveolar bone 5 to be cut when moving forward with a sharp blade, it can be cut through one surface of a blade that is relatively smooth.

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.

 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 above-described 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.

As such, according to the cutting drill 300 of the present embodiment, the inner portion 5b of the alveolar bone 5 may be cut until at least one surface of the inner membrane contact body 320 contacts the maxillary sinus inner membrane 3. Diamond particles 325 are evenly coated on the outer surface of the inner membrane contact body 320 so that the maxillary sinus lining 3 is damaged even when the maxillary sinus lining 3 and the inner membrane contact body 320 rotate in contact with each other. There is a deterrent effect.

Meanwhile, the maxillary sinus elevation mechanism 400 of the maxillary sinus elevation drill tool according to an embodiment of the present invention is not only elevated by the maxillary sinus lining 3 partially exposed by the cutting drill 300, but also a cutting drill. A mechanism for removing the remaining alveolar bone 5 remaining portion 5c (see FIG. 8) by the shape of 300, as shown in FIG. 7, the handle body 410 and both ends of the handle body 410. It is provided in the end is provided with a pair of coarse body 420 is provided with an elevating member 421 for elevating the maxillary sinus lining (3).

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 lengthwise direction substantially the same as that of the handle body 410, and is bent at a central portion so that the coarse member provided at the end of the coarse body 420 can be easily inserted into or withdrawn from the hole of the alveolar bone 5. Is formed.

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 are located on the upper part of the coarse body 420 provided with the coarse member 421 so as to confirm the degree of elevation of the maxillary sinus lining 3. 423 is displayed.

As described above, according to the maxillary sinus elevation mechanism 400 of the present embodiment, not only the maxillary sinus lining 3 can be elevated without damage, but the residual bone 5 remaining portions 5c due to the shape of the cutting drill 300 remain. ), So that you can make space for implant placement.

On the other hand, the pressure drill 500 of the maxillary sinus elevation drill tool according to an embodiment of the present invention, bone graft material (8) introduced into the space (3s, see Fig. 8) generated by raising the maxillary sinus lining (3) 9 and 10, a pressurizing body 510 for pressing the bone graft material 8 and a handpiece extending from a lower end of the pressing body 510 and providing a rotational force as shown in FIGS. 9 and 10. (Not shown) is provided with a pressing rod 530 is formed with a connecting groove 531 detachably coupled.

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 drilling 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 of the present embodiment, 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. Since the pressure can be uniformly and densely, there is an effect that the fixture (not shown) of the implant to be placed thereafter can be firmly supported.

Hereinafter, the drilling operation of the alveolar bone 5 and the elevation operation of the maxillary sinus lining using the maxillary sinus elevation drill tool having such a configuration will be described.

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 approximately 1 mm adjacent using the drilling drill 200. 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 cutting drill 300 is introduced into the hole of the alveolar bone 5, and the drilling operation is performed until the inner membrane contact body 320 of the cutting drill 300 contacts the maxillary sinus lining 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.

Thus, according to the drill tool for maxillary sinus elevation according to an embodiment of the present invention, the hole of the alveolar bone 5 implanted by the guide drill 100, drilling drill 200 and cutting drill 300 Can be accurately perforated, and after elevating the maxillary sinus lining (3) without damaging the maxillary sinus lining (3), the bone graft material (8) can be uniformly filled in the space formed by the maxillary sinus lining (3). There is an effect that can be firmly placed.

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. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

1 is a perspective view of a guide drill of the maxillary sinus elevation drill tool according to an embodiment of the present invention.

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 drilling drill of the maxillary sinus elevation drill tool according to an embodiment of the present invention.

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

5 is a perspective view of a cutting drill of the maxillary sinus elevation drill tool according to an embodiment of the present invention.

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

7 is a view showing the maxillary sinus elevation mechanism of the maxillary sinus elevation drill tool according to an embodiment of the present invention.

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.

9 is a perspective view of a drill for pressurization of the maxillary sinus elevation drill tool according to an embodiment of the present invention.

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

* Explanation of symbols for the main parts of the drawings

3: maxillary sinus lining 5: alveolar bone

100: guide drill 110: guide body

120: point portion 130: guide rod

200: drilling drill 210: drilling body

213: female thread 300: cutting drill

310: cutting body 320: inner body contact body

400: maxillary sinus cavities 420: colossus

500: press drill 510: pressurized body

Claims (21)

delete delete delete delete delete delete delete delete delete delete delete delete delete A guide drill having a cutter for cutting the alveolar bone at an upper end thereof; A drill for drilling the alveolar bone until it is adjacent to the maxillary sinus lining located inside the alveolar bone; A cutting drill inserted into a hole drilled by the drilling drill to cut a portion of the alveolar bone until at least a portion of the upper surface contacts the upper lining of the maxillary sinus; And A maxillary sinus elevation drill tool for elevating the maxillary sinus lining exposed by the cutting drill and removing the remaining portion of the alveolar bone remaining in the alveolar bone. The method of claim 14, The maxillary sinus elevation drill tool further comprises a pressing drill for pressing the bone graft material introduced into the inner portion of the alveolar bone where the maxillary sinus lining is elevated. The method of claim 15, The drill for drilling, A perforated body provided in a hollow cylindrical shape and provided with a cutter at its upper end; And Maxillary sinus drill tool is provided on the inner wall of the perforated body comprising a female thread for catching (catching) the alveolar bone portion separated from the alveolar bone when the alveolar bone is punctured. The method of claim 15, The cutting drill, 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 The maxillary sinus elevation drill tool coupled to the upper end of the cutting body, characterized in that it comprises an inner film contact body surface is coated with a diamond material. The method of claim 15, The guide drill, A guide body having a cutter for cutting the alveolar bone at its upper end; And It is provided spaced apart from the guide body is provided to protrude upward more than the upper end of the guide body, characterized in that the maxillary sinus movement characterized in that it comprises a point portion that points to the center of the portion of the implant implant to be implanted in the alveolar bone Commercial drill tool. The method of claim 15, The maxillary sinus elevation mechanism, Handle body; And It is coupled to both ends of the handle body, the end includes a pair of coarse body is provided with a coarse member for raising the maxillary sinus lining, The upper surface member is the upper surface in contact with the inner maxillary sinus lining is rounded (rounding), at least a portion of the side end is formed to be sharp to remove the remaining portion of the alveolar bone. The method of claim 19, The coarse body has a longitudinal direction and is formed to be bent into the hole of the alveolar bone, On the coarse body adjacent to the coarse member is displayed a scale to check the hole depth of the alveolar bone, The upper surface of the handle body is a sinusoidal elevation drill tool, characterized in that the non-slip to prevent slipping is formed regularly. The method of claim 15, The press drill is, Regular grooves are formed in the outer surface is recessed, the upper end is provided with a convex shape to press the bone graft material in the outward direction; And It is formed from the lower end of the pressing body, the upper jaw drilling tool for maxillary sinus, characterized in that it comprises a pressurizing rod is provided at the end to be connected to the handpiece for providing rotational force.

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