KR100936292B1 - Drill tool for block bone grafting - Google Patents

Abstract

The present invention provides a drill mechanism for a block bone transplantation procedure used to collect a block bone from cartilage tissue of the body to implant the implant, and to implant the collected block bone into the alveolar bone. The drill mechanism for block bone transplantation is provided with a drill for digging a hole in the cartilage tissue of the body to a certain depth and digging a circular groove so that a circular rim is formed around the drilled hole. By being able to collect at a certain thickness, it is possible to provide a block bone in which the implant can be firmly and stably placed in the alveolar bone lacking the remaining bone. In addition, the implant inserted into the central hole of the block bone can be easily fixed at the same time the alveolar bone fixation of the block bone and the implant is simplified the implant procedure. In addition, the drill tool for block bone implantation procedure according to the present invention is to simplify the operation of collecting the block bone from the cartilage tissue of the body by providing a block bone sampling drill in which the trepin drill and the torsion drill is integrated.

The drill mechanism for the block bone implantation procedure according to the present invention includes a block bone sampling drill in which a trephine drill type rotating body and a torsional drill type rotating body are coupled to each other to form an integrated body. In such a block-bone drill, the trepin drill-like rotating body is formed of a tubular cylindrical body with teeth formed along the periphery of the open front end, and the torsion drill-shaped rotating body is formed inside the trepin drill-shaped rotating body. It passes through the center in the longitudinal direction and protrudes in front of the front portion formed with the teeth, the cutting edge is formed in a spiral along the outer peripheral surface. The block bone sampling drill as described above allows the drill pin rotator and the torsion drill rotator to rotate integrally in a state in which they are placed perpendicular to the surface of the cartilage tissue of the body to simultaneously form the edge of the block bone and the central hole.

Implant, Block Bone, Alveolar Bone, Trepin Drill, Torsion Drill

Description

Drill tool for block bone grafting

The present invention relates to a drill device for a block bone implantation procedure, and more specifically, to drill a hole to a certain depth in the cartilage tissue of the body, a drill is provided for digging a circular groove so that a circular edge is formed around the drilled hole in the center A block bone having a hole with a circular cross section having a predetermined thickness can be collected to provide a block bone in which the implant can be firmly and stably implanted in the alveolar bone lacking residual bone, while the implant inserted into the central hole of the block bone is provided. As a result, the bone bone fixation of the block bone and the implant can be easily performed at the same time, thereby simplifying the implant procedure and by using a drill in which the trepin drill and the torsion drill are integrated, simplifying the work of extracting the block bone from the cartilage tissue of the body. The present invention relates to a drill mechanism for block bone transplantation.

The implant (Dental implant) is an artificial tooth that is placed in the alveolar bone in place of the root of the damaged tooth removed from the alveolar bone, the artificial tooth (crown) is fixed to the upper side.

This implant must be stable and firmly placed in the alveolar bone so that the artificial tooth can hold its position and perform the function that the permanent tooth of the body performed. Therefore, the amount of residual bone in the alveolar bone at the implant placement site is insufficient. If the thickness or width of the alveolar bone is smaller than the thickness or width for implantation, implantation is performed.

In particular, when the posterior molar is extracted from the alveolar bone, the absorption of the alveolar bone proceeds extensively over time. Therefore, when the implant procedure is performed on the posterior part, a procedure for replenishing the insufficient alveolar bone is performed in advance. There are many cases.

As a procedure for replenishing the remaining bone shortage of the alveolar bone, a sinus lift technique, a rigid split split, a block bone graft, and the like are currently being performed.

The maxillary sinus elevation is formed on the maxillary bone where the posterior part is located, thereby elevating the lining of the maxillary sinus through which the nose and air flow, forming a space, and then implanting the bone in the secured space, and implanting the implant therein. Liquor is a method that allows the implant to be placed in the space that is open to the left and right sides of the alveolar bone and the narrowed alveolar bone after a long time lost.

In addition, the block bone graft is a method of generating alveolar bone by extracting a bone from a block of cartilage tissue of the body, such as a ramus portion of a mandibular bone or a hip bone, and fixing it to an implant placement site.

Herein, when the maxillary sinus levitation or alveolar bone is mainly formed at the localized site, crushed bone graft is mainly performed. Unlike such crushed bone graft, block bone grafting is widely horizontally remaining in the alveolar bone. The procedure is performed when there is a lack of bone, especially when there is no residual bone of the alveolar bone horizontally and the thickness of the alveolar bone where the implant can be placed is less than 5 mm. For example, if the extraction of the posterior part of the posterior side of the buccal side or the palatal side bone is absorbed, and the peripheral bone wall is intact, but there is severe alveolar bone absorption in the posterior part, the posterior bone of the posterior side is severely absorbed. Block bone graft is performed when bone regeneration is needed.

As described above, block bone graft is a method of extracting bones from the cartilage tissue of the body in the form of lumps, and the procedure is complicated and difficult. In addition, in the conventional block bone transplantation, the collected block bone was often fixed by using a separate bone screw. Therefore, fixing of the block bone was cumbersome, and the block bone was properly implanted into the alveolar bone. As the block bone is unstable in the alveolar bone, the implant placement becomes unstable and the life of the implant is shortened.

Therefore, development of a new type of block bone and a block bone transplantation procedure using the same are currently required.

In addition, since various types of drills are currently used to collect block bones from cartilage tissue of the body as described above, the construction and development of a drill mechanism for collecting block bones of a new surgical type is also required.

On the other hand, in relation to the drill used for the general implant treatment, Republic of Korea Patent Publication No. 10-0619145 "Implant Drill for Maxillary Sinus Elevation", Patent Publication No. 10-2004-0032216 "Implant Drill "Etc. is currently filed, and the applicant filed by the applicant is the Republic of Korea Patent Publication No. 10-539414" Dental drill set ".

However, as described above, conventionally applied implant-related drills are simply used to drill a hole or cut a bone surface, so that it is used specifically for the extraction of a block bone that can be stably fixed and effectively implanted into the currently required alveolar bone. There is a limit to the following, the development of a drill mechanism required for the extraction and implantation of a new type of block bone is required.

Therefore, the present invention is to improve the problems of the prior art, a hole to dig a hole in the cartilage tissue of the body to a certain depth, provided with a drill to dig a circular groove so that a circular rim is formed around the drilled hole is a circular cross section formed with a central hole By being able to collect a block bone of the bone bone at a certain thickness, a block bone is provided in which the implant can be firmly and stably placed in the alveolar bone lacking the remaining bone, while the block bone and the implant are inserted by an implant inserted into the central hole of the block bone. It is an object of the present invention to provide a new type of block bone implantation drill mechanism that can be easily fixed at the same time the alveolar bone fixation can be simplified.

In particular, it is an object of the present invention to provide a drill mechanism for a new type of block bone transplantation that can simplify the operation of collecting the block bone from the cartilage tissue of the body by using a drill in which the trepin drill and the torsion drill are integrated. It is done.

According to a feature of the present invention for achieving the above object, the present invention is a drill mechanism used to collect a block bone (bone bone) from the cartilage tissue of the body to implant the implant, and implant the collected block bone into the alveolar bone A trephine drill-shaped rotating body comprising a tubular cylindrical body and sawtooth formed around an open front end; A torsional drill-shaped rotating body which passes through the inner center of the trepin drill-like rotating body in the longitudinal direction and protrudes in front of the front portion having the teeth, and has a cutting edge spirally formed along an outer circumferential surface thereof; A block bone sampling drill is coupled to each other and is integrally formed. The drill pin rotary and the torsion drill rotary are mounted in a state where the block bone drilling is vertically placed on the surface of the cartilage tissue of the body. It is to be integrally rotated so that the edge of the block bone and the central hole is formed at the same time, the block bone extraction drill is coupled to the rotating mechanism for transmitting the torque, the connecting end is formed on the upper end; A torsional drill-shaped rotating body integrally connected with the connecting table and having a fixing hole formed on an outer circumferential surface thereof; A through hole is formed in the bottom surface and inserted into the outer circumference of the torsion drill rotary body, and the bottom surface is in close contact with the upper side of the rubber ring fixed to the upper locking end of the connecting rod, and corresponds to the fixing hole of the torsion drill rotary body. Combination hole is formed on the outer circumferential surface of the position to be fixed to the torsion drill-type rotating body by a fastening element penetrating the fixing hole and the coupling hole; consisting of the torsional drill-type rotating body and the tre It is characterized in that the pin drill-type rotating body is detachably coupled to each other.

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In the drill device for a block bone implantation procedure according to the present invention, the torsion drill is spaced between the coupling hole and the rubber ring in a state in which the trepin drill-type rotating body is in close contact with the rubber ring fixed to the locking end. The fastening element penetrates the fastening element and the coupling hole corresponding to each other as the rubber ring is pressed by the trepin drill type rotating body so as to be wider than a distance between the fixed hole of the die-shaped rotating body and the rubber ring. By the restoring force of the rubber ring actuating the trepin drill-shaped rotating body to be fixed to the torsional drill-shaped rotating body, the coupling hole of the trepin drill-shaped rotating body to form a 'b' to be cut to the bottom surface The fastening element is fixed to the fixing pin of the torsional drill-type rotating body by using a fixing pin, so that the fixing pin is fixed to the drill pin After passing through the coupling hole cut the whole bottom surface is characterized in that fitted to the coupling holes horizontally formed in the outer peripheral surface of the whole of the tray pins drilled times.

In the drill device for block bone implantation procedure according to the present invention, the trepin drill-type rotating body has an open surface formed on the outer circumferential surface thereof, so that the friction area with the cartilage tissue of the body is reduced when the trepin drill-type rotating body is rotated. It is characterized in that the generation of heat is reduced.

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According to the drill device for block bone transplantation procedure according to the present invention, a drill is provided for digging a hole in the cartilage tissue of the body to a certain depth and digging a circular groove so that a circular edge is formed around the drilled hole. By being able to collect a block bone of a certain thickness, the implant is firmly and stably implanted in the alveolar bone lacking the remaining bone as a medium. The alveolar bone fixation of the block bone and the implant is easily performed by the implant inserted into the central hole of the block bone, thereby simplifying the implant procedure.

Further, according to the drill mechanism for block bone implantation procedure according to the present invention, by providing a block bone sampling drill in which a trepin drill and a torsion drill are integrally provided, the operation of collecting the block bone from the cartilage tissue of the body is simplified. The time taken is saved, and the precision of work is also increased.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 and 9. On the other hand, in the drawings and detailed description showing and referring to the construction and operation that can be easily understood by those skilled in the art from a general block bone implantation drill mechanism is briefly or omitted. In particular, in the drawings and detailed description of the drawings, detailed descriptions and illustrations of specific technical configurations and operations of elements not directly related to technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown or described. It was.

1 is a view showing a process of implanting a block bone from the cartilage tissue of the body and implanted with the implant in the alveolar bone, Figure 2 is a block bone harvesting using a block bone sampling drill according to the present invention to the alveolar bone 3 is a view illustrating a process of implanting with an implant, and FIG. 3 is an outline view of a block bone sampling drill according to a preferred embodiment of the present invention, and FIG. 4 is a block bone drilling drill according to a preferred embodiment of the present invention. 5 is a cross-sectional view of a block bone extraction drill according to a preferred embodiment of the present invention, Figure 6 (a) is the alveolar bone to be implanted block bone using the cortical bone removal drill according to the present invention Figure 6 is a view for showing the procedure to flatten, Figure 6 (b) is tapered to the groove of the alveolar bone extracted by using the groove expansion drill according to the present invention FIG. 7 is a cross-sectional view of a cortical removal drill according to a preferred embodiment of the present invention, and FIG. 8 is a front end surface of the cortical removal drill according to a preferred embodiment of the present invention. 9 is a front view of a drill for expanding a groove according to a preferred embodiment of the present invention.

The drill mechanism for block bone transplantation according to the present invention is a mechanism used to collect a block bone from cartilage tissue of the body to implant the implant, and implant the collected block bone into the alveolar bone, Take a block thickness (2) of the circular cross section formed with a predetermined thickness, and arrange the alveolar bone area to be implanted block bone (2) to be implanted in the form as described above to smoothly fix the block bone (2) It is a drill mechanism for the block bone (2) to be implanted in the alveolar bone (1).

As described above, the block bone 2 collected by the drill mechanism for block bone transplantation according to the present invention has an implant 6 to be implanted in the alveolar bone 1 as the central hole 4 is formed. As shown in (f) or (e) of FIG. 2, the block is inserted into the central hole 4 of the block bone 2 and integrally combined with the block bone 2, and then (g) or (f) of FIG. As it is placed in the alveolar bone (1), the implantation of the alveolar bone (1) of the implant (6) and the implantation of the alveolar bone (1) of the block bone (2) can proceed simultaneously in one operation, thereby simplifying the implant procedure, While the alveolar bone 1 is protected by the use of the block bone 2 of a circular cross section having a predetermined thickness, the implantation of the implant 6 can be made firm and stable.

In order to collect the block bone 2 of the circular cross section in which the central hole 4 is formed as shown in (e) of FIG. 1 from the cartilage tissue of the body at a predetermined thickness, a point drill is used as shown in FIG. In the cartilage tissue of the center hole (3) is sold.

And, as shown in (b) of Figure 1 to place the tip of the torsion drill in the center hole (3) to rotate the torsion drill to dig a hole (4) in the cartilage tissue of the body, to increase the size of the hole (4) In this case, the hole 4 is expanded while gradually changing the torsion drill from the torsional drill with the smaller diameter to the torsional drill with the larger diameter.

Then, as shown in (c) of Figure 1 using a trephine (trephine) drill to form a circular groove (5) to form a circular rim around the hole drilled in the cartilage tissue of the body, then (d) of Figure 1 As shown in the drawing, a circular groove is picked up and removed using a tool such as tweezers.

In order to collect the block bone (2) from the cartilage tissue of the body as described above in the drill device for block bone transplantation procedure according to the present invention to use the block 100 for drilling the bone.

The block bone extraction drill 100 according to the present invention is a central hole (4) and a circular groove in the cartilage structure of the body according to the rotation of the block bone extraction drill 100 is made of a drill drill and a torsion drill integrally It is a technical feature that (5) is formed simultaneously. Accordingly, when the block 100 collecting drill 100 according to the present invention is used, the work performed in (b) and (c) of FIG. 1 is simplified to one operation as shown in FIG.

Block 100 drill according to the present invention 100 is a trepin (trephine) drill-like rotating body 20 and the torsional drill-type rotating body 40 is coupled to each other as shown in Figures 3 to 5 , The drill 100 for block bone extraction according to the preferred embodiment of the present invention, as shown in Figs. 4 and 5, the drill pin rotating body 20 and the torsion drill rotating body 40 are separately manufactured to be removable Although combined to form an integral, alternatively, the trepin drill type rotating body 20 and the torsional drill type rotating body 40 may be integrally formed in the manufacturing process to form a single block bone cutting drill 100. have.

The trepin drill-like rotating body 20 is formed around the outer periphery of the block bone extraction drill 100 and consists of a tubular cylindrical body 22, which protrudes forward along the periphery of the open front end 24. As the teeth 26 are formed, the circular groove 5 is formed in the cartilage tissue of the body at the time of rotation of the block 100 for drilling drill 100.

Here, the trepin drill-type rotating body 20 according to the preferred embodiment of the present invention is such that the open surface 222 is formed on the outer circumferential surface of the cylindrical body 22, accordingly the rotation of the drill 100 for block bone extraction When the trepin drill type rotating body 20 rotates, the friction area with cartilage tissue of the body is reduced, and when the trepin drill type rotating body 20 rotates due to the rotation of the block 100 drilling drill 100. As the amount of air flowing between the open surfaces 222 increases and the flow flow of air increases, the heat generated by friction with the cartilage tissue of the body smoothly and quickly as the block bone drilling drill 100 rotates. Will be done.

In addition, when the block bone 2 is collected from the cartilage tissue of the body using the block bone extraction drill 100 without tweezers, the block bone 2 may be smoothly collected.

The torsion drill-type rotating body 40 is formed to protrude forward in the inner central portion of the block bone extraction drill 100 and passes through the inner center of the trepin drill-type rotating body 20 in the longitudinal direction to form a drill pin. It further protrudes forward from the teeth 26 formed in the front portion 24 of the rotating body 20. The center of gravity of the cartilage tissue of the body is first drilled while the center of rotation of the block 100 for drilling the bone 100 according to the present invention by the torsional drill-type rotating body 40 placed in the central hole (4) While the central hole 4 is drilled deeper in the cartilage tissue of the body than the circular groove 5 formed by the trepin drill-like rotating body 20, the bone bone 2 from the cartilage tissue of the body This is to be formed through the central portion of the block bone 2 of the central hole (4) when removing the.

The torsion drill-like rotating body 40 is a cutting edge 42 is formed spirally along the outer circumferential surface to be able to dig a hole in the cartilage tissue of the body to a certain depth.

Here, the block bone extraction drill 100 according to a preferred embodiment of the present invention is a trepin drill type rotating body 20 and the torsional drill type rotating body 40 is detachably coupled to each other, for this purpose, of the present invention Block 100 drill according to the preferred embodiment 100 is coupled to the mechanism for transmitting torque, such as a handpiece, electric motor, such that the connecting rod 30 and the torsional drill-type rotating body 40 to rotate to form a unit. In addition, a through hole 28 is formed in the bottom surface of the trepin drill-like rotating body 20 such that the trepin drill-like rotating body 20 is inserted into the outer circumference of the torsion drill-shaped rotating body 40.

Here, in order to allow the drill pin rotating body 20 to be detachably fixed to the torsion drill type rotating body 40, the connecting rod 30 and the torsion drill type rotating body 40 is caught in a portion connected to each other. End 50 is formed, the locking end 50 is formed such that the recessed groove 52 is formed so that the rubber ring 60 is locked. Accordingly, the trepin drill-like rotating body 20 inserted into the torsion drill-like rotating body 40 is in close contact with the rubber ring 60 that is fixed to the locking end 50.

A fixing hole 44 is formed below the outer circumferential surface of the torsion drill rotator 40, and the fixing hole 44 of the torsion drill rotator 40 is formed on the outer circumferential surface of the throttle drill rotator 20. A coupling hole 224 is formed at a corresponding position. Accordingly, the coupling hole 224 passes through the fixing hole 44 of the torsion drill rotary body 40 and the coupling hole 224 of the trepin drill type rotary body 20 at the same time. The trepin drill type rotor 20 is fixed to the torsion drill type rotor 40 by the element.

Here, although the fixing pin 70 is used in the preferred embodiment of the present invention as a fastening element for fixing the trepin drill-type rotating body 20 to the torsion drill-type rotating body 40, it is fixed in a female thread type. Various types of fastening elements such as bolts bolted to the hole 44 and the coupling hole 224 may be used.

As described above, the fixing pin 44 of the torsion drill type rotating body 40 is inserted into the torsion drill type rotating body 40 in close contact with the rubber ring 60. The fixing pin 70 passes through the coupling hole 224 of the torsional drill-type rotating body 40. The trepin-drilling rotating body 20 presses the rubber ring 60 so that the rubber ring 60 is pressed. Force in the forward direction acts on the trepin drill-like rotating body 20 by the elasticity of the, so that the fixing pin 70 is between the torsion drill-shaped rotating body 40 and the trepin drill-shaped rotating body 20 The locking is fixed so that the drill pin rotating body 20 is fixed to the torsion drill rotating body 40.

That is, in the block 100 for drilling the bone-bone collecting according to the preferred embodiment of the present invention, the drill pin rotating body 20 is in close contact with the rubber ring 60 fixed to the locking end 50 in the coupling hole The spacing between the 224 and the rubber ring 60 is wider than the spacing between the fixing hole 44 and the rubber ring 60 of the torsion drill rotary body 40, accordingly, the trepin drill-shaped rotating body 20 When the rubber ring 60 is pressed by), the fixing hole 44 of the torsion drill-type rotating body 40 and the coupling hole 224 of the trepin drill-type rotating body 20 coincide with each other, and thus coincide with each other. As the fixing pin 70 penetrates the fixing hole 44 and the coupling hole 224, the trepin drill type rotating body 20 is twist-drilled by the restoring force of the rubber ring 60 acting on the fixing pin 70. It is firmly and stably fixed to the rotor 40.

In addition, in the block 100 extraction drill 100 according to a preferred embodiment of the present invention, the trepin drill-type rotating body 20 is to make the coupling hole 224 to form a 'b' shape to be cut to the bottom surface, accordingly After the fixing pin 70 inserted into the fixing hole 44 of the torsion drill-type rotating body 20 passes through the coupling hole 224 cut into the bottom of the trepin drill-type rotating body 20, the drill pin is drilled. It is fitted into the coupling hole 224 formed horizontally on the outer peripheral surface of the mold rotating body (20).

Referring to the assembly process of the block bone extraction drill 100 according to a preferred embodiment of the present invention in more detail, first, the rubber ring on the engaging end 50 between the connecting rod 30 and the torsion drill-type rotating body 40 After locking 60, the fixing pin 70 is inserted and fixed into the fixing hole 44 of the torsion drill-shaped rotating body 40. Then, the trepin drill-type rotating body 20 is inserted into the torsion drill-type rotating body 40, the coupling hole 224 to the bottom surface of the trepin drill-type rotating body 20 is cut open and open The fixing pin 70 inserted and fixed in the torsion drill-type rotating body 40 passes through the coupling hole 224 of the trepin drill-type rotating body 20 at the bottom thereof and is caught by the upper end of the coupling hole 224. Next, the fixing pin 70 is positioned at the end of the coupling hole 224 cut in the horizontal direction by rotating the trepin drill-type rotating body 20 at a predetermined angle. The torsion drill-type rotating body 40 has a rubber ring. As the elastic restoring force by 60 is fixed, the fixing pin 70 is fixed to the coupling hole 224 so that the trepin drill type rotating body 20 is firmly fixed to the torsional drill type rotating body 40. .

Herein, in the preferred embodiment of the present invention, the rubber ring 60 is used to impart elasticity to the fixing pin 70. In contrast, elastic bodies of various forms that can impart elasticity to the fixing pin 70, including springs, are provided. Of course, can be used.

As the block 100 collecting drill 100 according to the present invention as described above is a configuration that can be easily detached and coupled to the repair and replacement work according to the damage of the trepin drill-type rotating body 20 and the torsional drill-type rotating body 40 This can be done easily, and also maintenance work can be done easily.

And, according to the size of the block bone (2) and the size of the central hole (4) it is possible to easily replace the drill pin rotating body 20 or torsional drill rotating body 40.

On the other hand, the block bone (2) collected by the block bone extraction drill 100 according to the present invention is to be implanted in the alveolar bone (1), the block bone implantation procedure drill mechanism according to the present invention is a block bone (2) Cortical bone removal drill 200 and groove expansion drill 300 for arranging the alveolar bone to be transplanted so that the block bone 2 can be smoothly fixed so that the bone bone 2 is implanted with the alveolar bone 1. To provide.

Cortical bone removal drill 200 according to the present invention is to flatten the alveolar bone portion as shown in Figure 6 (a), a connecting table 220 and a connecting table 220 connected to the mechanism for transmitting torque as shown in FIG. The cutting tool 240 is coupled to the cutting edge 242 is formed on the front end surface.

Here, the guide pin 244 is coupled to the center of rotation of the cutting section 240, the guide pin 244 is rotated to the alveolar bone when the drill cortical bone removal drill 200 is placed vertically on the surface of the alveolar bone. Insertion and fixation in the pre-punched center hole is maintained by the center of rotation of the cortical bone removal drill 200, so that the cortical bone removal drill 200 can continue to maintain the correct position cortical bone removal by the cortical bone removal drill 200 While the operation is performed smoothly, the body part during the cortical bone removal operation of the alveolar bone by the cortical bone removal drill 200 is protected.

The groove expansion drill 300 is to taperly expand the recess groove so that the block bone 2 can be smoothly inserted into the recess groove formed in the alveolar bone extracted as shown in FIG. 6 (b). The same groove expansion drill 300 is connected to the connecting rod 320 and the mechanism for transmitting torque as shown in Figure 9, the tapered cylindrical shape coupled to the connecting rod 320 and the cutting edge 342 is formed on the outer peripheral surface of the screw It consists of a cutting tool 340.

When using the groove expansion drill 300 as described above it is easy to cut the side of the recess groove formed in the extracted alveolar bone.

Although the drill mechanism for block bone implantation procedure according to the embodiment of the present invention as described above has been shown in accordance with the above description and drawings, this is merely described for example and various within the scope without departing from the spirit of the present invention. It will be understood by those skilled in the art that changes and modifications are possible.

1 is a view showing a process of taking a block bone from the cartilage tissue of the body and implanting it with the implant in the alveolar bone;

Figure 2 is a view for showing the process of implantation with the implant in the alveolar bone by using a block bone harvesting drill according to the present invention;

3 is an external view of a block bone extraction drill according to a preferred embodiment of the present invention;

Figure 4 is an exploded perspective view of a drill for block bone extraction according to a preferred embodiment of the present invention;

Figure 5 (a) and (b) is a cross-sectional view of a block bone sampling drill according to a preferred embodiment of the present invention;

Figure 6 (a) is a view for showing a procedure to flatten the alveolar bone area to be implanted block bone using the cortical bone removal drill according to the present invention;

Figure 6 (b) is a view for showing a procedure to taperly expand the indentation groove of the alveolar bone extracted by using the groove expansion drill according to the present invention;

7 is a cross-sectional view of the removal drill for cortex according to a preferred embodiment of the present invention;

8 is a view showing a cutting edge formed on the front end surface of the removal drill for cortex according to a preferred embodiment of the present invention;

9 is a front view of the groove-drilling drill according to a preferred embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

1: Alveolar bone 2: Block bone

3: center hole 4: central hole, hole

5: round groove 6: implant

7: cartilage tissue 20: trepin drill type rotating body

22: cylindrical body 222: open surface

224: coupling hole 24: front

26: tooth 28: through hole

30, 220, 320: connecting rod 40: torsion drill type rotating body

42, 242, 342: cutting edge 44: fixed hole

50: locking step 52: recessed groove

60: rubber ring 70: fixing pin

100: block bone extraction drill 200: drill for cortical bone removal

240, 340: cutting hole 244: guide pin

300: drill for expanding the groove

Claims (6)

delete In the drill mechanism used to collect a block bone (bone bone) from the cartilage tissue of the body for implantation, and implant the collected block bone into the alveolar bone, A trephine drill-shaped rotating body formed of a tubular cylindrical body with teeth formed around an open front end; A torsional drill-shaped rotating body which passes through the inner center of the trepin drill-like rotating body in the longitudinal direction and protrudes in front of the front portion having the teeth, and has a cutting edge spirally formed along an outer circumferential surface thereof; It is provided with a drill for the block bone harvesting united with each other, In the state where the block bone extracting drill is placed vertically on the surface of the cartilage tissue of the body, the trepin drill type rotating body and the torsional drill type rotating body are integrally rotated so that the edge of the block bone and the central hole are formed at the same time. But The block bone sampling drill is coupled to the rotating mechanism for transmitting the torque, the connecting rod is formed on the upper end; A torsional drill-shaped rotating body integrally connected with the connecting table and having a fixing hole formed on an outer circumferential surface thereof; A through hole is formed in the bottom surface and inserted into the outer circumference of the torsion drill rotary body, and the bottom surface is in close contact with the upper side of the rubber ring fixed to the upper locking end of the connecting rod, and corresponds to the fixing hole of the torsion drill rotary body. Combination hole is formed on the outer circumferential surface of the position is a trepin drill-like rotating body fixed to the torsional drill-type rotating body by a fastening element penetrating the fixing hole and the coupling hole; The drill mechanism for block bone transplantation, characterized in that the torsion drill-type rotating body and the trepin drill-type rotating body to be detachably coupled to each other. The method of claim 2, In the state where the trepin drill-type rotating body is in close contact with the rubber ring fixed to the locking end, the distance between the coupling hole and the rubber ring is wider than the gap between the fixing hole of the torsional drill-type rotating body and the rubber ring. The trepin drill type by the restoring force of the rubber ring acting on the fastening element through the fastening element through the fixing hole and the coupling hole matched with each other while the rubber ring is pressed by the trepin drill-like rotating body While the rotating body is fixed to the torsional drill type rotating body, The coupling pin of the trepin drill-shaped rotating body is formed in a 'b' shape to be cut into the bottom surface, and the fastening element is fixed to the fixing pin inserted into the fixing hole of the torsional drill-shaped rotating body by using the fixing pin. After passing through the coupling hole cut into the bottom surface of the trepin drill-type rotary body, the drill mechanism for block bone implantation procedure characterized in that the fitting is coupled to the coupling hole formed horizontally on the outer peripheral surface of the trepin drill-type rotary body. The method of claim 2 or 3, The trepin drill type rotating body has an open surface formed on an outer circumferential surface thereof so as to reduce the friction area with cartilage tissue of the body when the trepin drill type rotating body is rotated so that the generation of heat is reduced. Drill mechanism for. delete delete

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