Drilling tool for lifting sinus

Abstract

The invention discloses a drilling tool for maxillary sinus heightening. The drilling tool for maxillary sinus heightening according to an embodiment of the inventive concept includes: an implant drill including a drill diameter enlarging blade to prevent damage to a maxillary sinus membrane and to enlarge a diameter of a drill hole when a maxillary sinus heightening surgery is performed; and a bit housing detachably coupled to the implant drill and guiding a drilling operation of the implant drill.

Description

Technical Field

[0001] The present invention relates to a drilling tool for maxillary sinus augmentation, and more particularly, to a drilling tool for maxillary sinus augmentation that can easily enlarge the diameter of a drill hole while preventing damage to the maxillary sinus membrane during maxillary sinus augmentation surgery, thereby improving the success rate of implant surgery and patient satisfaction. Background Art

[0002] Dental implants are replacements that replace original human tissue when it is lost. However, dentistry defines implants as a series of procedures to place artificial teeth.

[0003] In other words, dental implants refer to a series of dental surgeries that involve implanting titanium root fixtures that are not rejected by the human body into the alveolar bone where teeth have fallen out to replace the lost tooth roots, and then fixing artificial teeth to restore tooth function.

[0004] For general restorations or dentures, the surrounding teeth and bones will be damaged over time, but implants will not damage the surrounding tooth tissue, and have the same function and shape as natural teeth, and will not cause tooth decay. Therefore, implants have the advantage of being able to be used semi-permanently.

[0005] Artificial tooth surgery (also called implant or implantation surgery) is performed by using a drill to make screw holes in the alveolar bone at the location where the fixture is to be implanted, implanting the fixture into the screw hole to combine with the bone to form an artificial tooth root, connecting the abutment tooth to the fixture, and then placing a crown as an artificial tooth on the abutment tooth, which is the final prosthesis.

[0006] These implants not only replace single missing teeth but also improve the function of dentures in partially or completely edentulous patients, improve the aesthetics of denture restorations, and further help to distribute excessive stress applied to the surrounding supporting bone tissue and stabilize the dentition.

[0007] Also, among implant surgeries, there's a procedure called sinus augmentation. This procedure involves raising the maxillary sinus floor, or the maxillary sinus membrane, when bone height is insufficient during maxillary implant surgery. For reference, the maxillary sinus is a cavity next to the nose, between the lower eyelid and the upper teeth. If pus accumulates there, it can lead to sinusitis. Augmentation means lifting.

[0008] When performing this type of maxillary sinus augmentation surgery, after the maxillary sinus membrane is augmented, a drill hole is formed for the implantation of the fixture. If the diameter of this drill hole is narrow, a second drilling operation must be performed to enlarge the diameter of the hole.

[0009] However, when trying Figure 2When enlarging the diameter of the drill hole for the first time, the drilling process should be performed while preventing the maxillary sinus membrane from being punctured or torn, or in other words, without damaging the maxillary sinus membrane. To achieve this, a suitable drilling tool is required. However, since such a drilling tool has not yet been proposed, a new technical concept for drilling tools for maxillary sinus augmentation is needed. Summary of the Invention

[0010] Technical issues

[0011] The present invention provides a drilling tool for maxillary sinus augmentation, which can easily enlarge the diameter of the drill hole during maxillary sinus augmentation surgery while preventing damage to the maxillary sinus membrane, thereby improving the success rate of implantation surgery and patient satisfaction.

[0012] Beneficial effects of disclosure

[0013] According to the present invention, when performing a maxillary sinus augmentation surgery, the diameter of the drill hole can be easily enlarged while preventing damage to the maxillary sinus membrane, thereby improving the success rate of the implant surgery and patient satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of a drilling tool for maxillary sinus augmentation according to an embodiment of the present inventive concept.

[0015] Figure 2 yes Figure 1 Exploded three-dimensional diagram.

[0016] Figures 3 to 5 are views showing the implantation drill at different angles.

[0017] Figure 6 It is a three-dimensional diagram of the drill housing.

[0018] Figure 7 yes Figure 6 A three-dimensional view of the lower surface.

[0019] Figures 8 to 10 It shows Figure 5 Detailed structural views of area A from different angles.

[0020] Figures 11 to 13 is a step-by-step usage diagram of a drilling tool for maxillary sinus augmentation according to an embodiment of the present inventive concept. DETAILED DESCRIPTION

[0021] Best Mode

[0022] According to the concept of the present invention, a drilling tool for maxillary sinus augmentation is provided, comprising an implant drill having a drill diameter enlarging blade, thereby preventing damage to the maxillary sinus membrane and enlarging the diameter of the drill hole during maxillary sinus augmentation surgery; and a drill bit housing, which is detachably connected to the implant drill and guides the drilling operation of the implant drill.

[0023] The drill hole diameter enlarging edge may include a forward direction cutting edge that rotates in a forward direction during rotation of the implant drill and cuts a corresponding portion to enlarge the diameter of the drill hole.

[0024] The forward-directing cutting edge may be a forward-directing rounded cutting edge having a rounded end.

[0025] The drill diameter enlarging edge may further include a material moving guide that is disposed adjacent to the forward direction cutting edge and guides bone fragments generated during the drilling operation or bone graft material input through the drill housing to be pushed upward in a direction toward the maxillary sinus.

[0026] The material moving guide may be a reverse material flute machined in a direction opposite to the forward cutting edge, whereby the reverse material flute prevents bone chips or bone graft material from accumulating in the forward cutting edge or around the forward cutting edge during the drilling operation.

[0027] In the implant drill, a drill diameter expanding blade may be provided in an end region, and the implant drill may further include a drill shaft in which a device mounting portion is formed at a side opposite to the drill diameter expanding blade.

[0028] The implant drill may further include a housing attachment / detachment coupling portion which is provided in the drill shaft region at a position where the drilling diameter enlarging blade ends and forms a position where the drill housing is detachably coupled.

[0029] The shell attachment / detachment connection part may include: a shell support boss, which is formed at the position where the drilling diameter expansion blade ends to be larger than the cross-sectional area of ​​the drill shaft and partially supports the drill bit housing; a stop flange, which has a diameter larger than the shell support boss, is formed at the end of the shell support boss and forms a connecting line along which the drill bit housing is connected.

[0030] The detachable protrusion may be provided on one of the housing support boss of the implant drill and the drill housing, and the detachable protrusion is detachably coupled to the detachable protrusion groove and may be formed on the other of the housing support boss of the implant drill and the drill housing.

[0031] The detachable protrusion may be formed to protrude radially outward from a housing support boss of the implant drill, and the detachable protrusion groove may be formed to be recessed radially inward from an inner wall of the drill housing.

[0032] The drill housing may include a hollow housing body having one end region supported to contact a region of a housing support boss of a housing attachment / detachment coupling portion and a detachable protruding groove formed on one side of an inner wall.

[0033] A plurality of elasticity-providing cutting grooves that provide elasticity may be formed in an end region of the hollow housing body where the detachable protruding groove is located.

[0034] A plurality of cutting grooves for providing elasticity may be arranged at equal intervals along the circumferential direction of the hollow shell body.

[0035] At least one through hole may be formed in a wall surface of the hollow housing body.

[0036] The through-hole may be provided as a groove, and a plurality of through-holes may be provided at equal intervals along a circumferential direction of the hollow housing body.

[0037] Disclosure method

[0038] Reference is made to the accompanying drawings for illustrating preferred embodiments of the present inventive concept in order to gain a full understanding of the present inventive concept, its advantages, and objectives achieved by implementing the present inventive concept.

[0039] Hereinafter, the inventive concept will be described in detail by explaining preferred embodiments of the inventive concept with reference to the accompanying drawings, in which the same component numbers represent the same elements.

[0040] Figure 1 is a perspective view of a drilling tool for maxillary sinus augmentation according to an embodiment of the present inventive concept. Figure 2 yes Figure 1 Exploded three-dimensional diagram. Figures 3 to 5 are views showing the implantation drill at different angles. Figure 6 It is a three-dimensional view of the drilling rig housing. Figure 7 yes Figure 6 A three-dimensional view of the lower surface. Figures 8 to 10 Show Figure 5 Detailed structural views of area A from different angles. Figures 11 to 13 is a step-by-step usage diagram of a drilling tool for maxillary sinus augmentation according to an embodiment of the present inventive concept.

[0041] Referring to these drawings, the drilling tool 100 for maxillary sinus augmentation according to this embodiment can easily enlarge the diameter of the drill hole 5 while preventing damage to the membrane 3 of the maxillary sinus 1 during maxillary sinus augmentation, thereby improving the success rate of the implantation surgery and patient satisfaction, and may include two parts that can be disassembled and assembled with each other, namely, the implantation drill 110 and the drill bit housing 150.

[0042] The implant drill 110 and the drill housing 150 are independent structures and are located in a Figure 1 The connection and assembly status shown. Figures 11 to 13 As shown, they are arranged around the upper jaw and are rotated by a separate electric drilling device (not shown) to perform a drilling operation, that is, a drilling operation to enlarge the diameter of the borehole 5.

[0043] First, the implant drill 110 is described. The implant drill 110 is an important device and structure for enlarging the diameter of the borehole 5. Figure 11 As shown, when a bore hole 5 is formed in the upper jaw in which a fixture is to be placed, the implant drill 110 can be used to enlarge the diameter of the bore hole 5 .

[0044] When coupled to the drill housing 150 , the implant drill 110 rotates together with the drill housing 150 to perform a drilling operation.

[0045] The implant drill 110 may include a drill shaft 120 and a drill diameter enlarging blade 130 provided in a one side end region of the drill shaft 120 .

[0046] The drill shaft 120 has a long rod type structure, and a drill diameter enlarging blade 130 is provided in one end region thereof.

[0047] The device mounting portion 121 is provided at the end of the drill shaft 120 opposite to the drill diameter enlarging blade 130. The device mounting portion 121 can be used to mount the drilling tool 100 for maxillary sinus augmentation according to this embodiment on a separate electric drill device.

[0048] The housing attachment / detachment coupling portion 140 is provided in the central area of ​​the drill shaft 120. The housing attachment / detachment coupling portion 140 is provided in the area of ​​the drill shaft 120 where the drilling diameter enlarging blade 130 ends, and forms a position where the drill housing 150 is detachably coupled.

[0049] The case attaching / detaching coupling portion 140 may include a case supporting boss 141 and a stopping flange 142 .

[0050] The housing support boss 141 is formed at a position where the drilling diameter expanding blade 130 ends and is formed to be larger than the cross-sectional area of ​​the drill shaft 120. The housing support boss 141 supports an area of ​​the hollow housing body 151 of the drill housing 150 in which the cutting groove 153 providing elasticity is located.

[0051] A stopper flange 142 is formed at the end of the housing support boss 141. The diameter of the stopper flange 142 is larger than the diameter of the housing support boss 141. Therefore, when the end of the drill housing 150 is supported on the stopper flange 142, the drill housing 150 can be coupled to the housing attachment / detachment coupling portion 140.

[0052] The detachable protrusion 143 and the detachable protrusion groove 152 are formed so that the drill housing 150 is detachably coupled to the implant drill 110 .

[0053] The detachable protrusion 143 is provided at one of the housing support boss 141 of the implant drill 110 and the drill housing 150 , and the detachable protrusion groove 152 is provided at the other of the housing support boss 141 and the drill housing 150 .

[0054] In the case of the present embodiment, the detachable protrusion 143 is formed to protrude radially outward from the housing support boss 141 of the implant drill 110, and the detachable protruding groove 152 is formed to be recessed radially inward from the inner wall of the drill housing 150. Therefore, when the drill housing 150 is inserted around the implant drill 110, the detachable protruding groove 152 of the drill housing 150 is inserted into the detachable protrusion 143 provided on the housing support boss 141 of the implant drill 110, so as to be easily coupled to the drill housing 150.

[0055] Different from the drawings, the detachable protrusion 143 may be formed in the drill housing 150, and the detachable protrusion groove 152 may be formed in the implant drill 110. All of these matters should be understood to fall within the scope of the present inventive concept.

[0056] Meanwhile, the drill hole diameter enlarging blade 130 is a portion formed in the end region of the drill shaft 120 and is a device that basically performs the drilling operation. In other words, the drill hole diameter enlarging blade 130 can prevent the membrane 3 of the maxillary sinus 1 from being damaged during the maxillary sinus augmentation surgery 1 and can also enlarge the diameter of the drill hole 5.

[0057] The drill diameter expanding edge 130 may include a forward direction cutting edge 131 and a material moving guide 132 .

[0058] The forward direction cutting edge 131 is a device for cutting a corresponding portion while rotating in the forward direction during the rotation of the implant drill 110 to expand the diameter of the drill hole 5 .

[0059] In this embodiment, the forward cutting edge 131 is a forward circular cutting edge 131 having a rounded end, and a plurality of forward cutting edges are provided in the end region of the drill shaft 120 as the forward cutting edge 131. The forward circular cutting edge 131 is concentrically arranged with respect to the center point.

[0060] The material moving guide 132 is provided adjacent to the forward direction cutting edge 131 and guides bone chips generated during the drilling operation or bone graft material that may be input through the drill housing 150 to be pushed upward in a direction toward the maxillary sinus 1 .

[0061] In this embodiment, a reverse material groove edge 132 processed in a direction opposite to the direction of the forward direction cutting edge 131 is used as the material moving guide 132. The reverse material groove edge 132 is arranged around the forward direction cutting edge 131 in a twisted form.

[0062] Thus, due to Figures 11 to 13 During the drilling operation, the drilling diameter expanding edge 130 is configured as a forward circular cutting edge 131 and a reverse material groove edge 132, which can prevent bone fragments or bone graft material from accumulating in or around the forward circular cutting edge 131.

[0063] Next, the drill housing 150 is detachably coupled to the implant drill 110 , and is a device for guiding the implant drill 110 to perform a drilling operation.

[0064] Specifically, the drill housing 150 is a device that is used to collect bone fragments generated during the drilling operation and is also used to inject bone graft material.

[0065] The drill housing 150 includes a hollow housing body 151 and a detachable protruding groove 152 formed on one side of the inner wall, and one end region of the hollow housing body 151 is supported to contact a region of the housing support boss 141 of the housing attachment / detachment coupling portion 140. Since the hollow housing body 151 has a hollow tube structure, the drill housing 150 is easy to attach / detach.

[0066] A plurality of elasticity providing cutting grooves 153 for providing elasticity are formed in an end region of the housing body 151 , wherein the interior where the detachable protruding groove 152 is located is hollow.

[0067] The plurality of cutting grooves 153 for providing elasticity are arranged at equal intervals along the circumferential direction of the hollow shell body 151. Thus, since the plurality of cutting grooves 153 for providing elasticity are formed in the end region of the hollow shell body 151, the end region of the hollow shell body 151 can maintain a certain elastic force, unlike an integral structure.

[0068] Therefore, when the drill housing 150 is inserted around the implant drill 110, since the elastic area providing the cutting groove 153 slightly opens and then elastically closes, the detachable protrusion groove 152 can be coupled to the detachable protrusion 143 of the implant drill 110, thereby preventing the drill housing 150 from being accidentally disassembled.

[0069] Furthermore, through holes 154 are formed in the wall surface of the hollow housing body 151. In this embodiment, the through holes 154 are configured as slots, and a plurality of through holes may be arranged at equal intervals along the circumference of the hollow housing body 151. The through holes 154 form a space for inputting bone graft material.

[0070] According to the above structure, when performing maxillary sinus augmentation surgery, if it is necessary to enlarge the diameter of the previously drilled small drill hole 5, the drilling tool 100 for maxillary sinus augmentation according to this embodiment is as follows: Figure 11 As shown, it is positioned and inserted into the borehole 5, as shown Figure 12 and 13 This prevents bone fragments or bone graft material from accumulating in or around the forward circular cutting edge 131 and pushes them upward toward the maxillary sinus 1, prevents the membrane 3 of the maxillary sinus 1 from being damaged, and expands the diameter of the drill hole 5.

[0071] According to this embodiment using the above structure, when performing an augmentation operation on the maxillary sinus 1, the diameter of the drill hole 5 can be easily enlarged while preventing damage to the membrane 3 of the maxillary sinus 1, thereby improving the success rate of the implantation operation and patient satisfaction.

[0072] While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. Therefore, the scope of the present invention is defined not by the detailed description of the present invention but by the appended claims, and all differences within the scope will be construed as being included in the present invention.

[0073] Industrial Applications

[0074] The concepts of the present invention may be used in dental surgery.

Claims

1. A drilling tool for maxillary sinus augmentation, characterized in that include: An implant drill including a drill hole diameter enlarging blade to prevent damage to the maxillary sinus membrane and to enlarge the diameter of the drill hole during maxillary sinus augmentation surgery; as well as A drill housing is detachably coupled to the implant drill and guides the drilling operation of the implant drill.

2. The drilling tool for maxillary sinus augmentation according to claim 1, wherein: The drill hole diameter enlarging edge includes a forward direction cutting edge, which rotates in the forward direction during the rotation of the implant drill bit and cuts a corresponding portion to enlarge the diameter of the drill hole.

3. The drilling tool for maxillary sinus augmentation according to claim 2, wherein: The forward-direction cutting edge is a forward-direction circular cutting edge having a rounded end.

4. The drilling tool for maxillary sinus augmentation according to claim 2, wherein: The drill diameter enlarging edge further includes a material moving guide disposed adjacent to the forward direction cutting edge and guiding bone chips generated during the drilling operation or bone graft material input through the drill housing to be pushed upward in a direction toward the maxillary sinus.

5. The drilling tool for maxillary sinus augmentation according to claim 4, wherein: The material moving guide is a reverse material flute machined in a direction opposite to the forward cutting edge, whereby the reverse material flute prevents bone chips or bone graft material from accumulating in or around the forward cutting edge during the drilling operation.

6. The drilling tool for maxillary sinus augmentation according to claim 1, wherein: The implant drill further includes a drill diameter enlarging blade provided in an end region, and the implant drill further includes a drill shaft, wherein the device mounting portion is formed on a side opposite to the drill diameter enlarging blade.

7. The drilling tool for maxillary sinus augmentation according to claim 6, wherein: The implant drill further includes a housing attachment / detachment coupling portion provided in the drill shaft region at a position where the drilling diameter enlarging blade ends and forming a position where the drill housing is detachably coupled.

8. The drilling tool for maxillary sinus augmentation according to claim 7, wherein: The housing attachment / detachment coupling portion includes a housing support boss formed at a position where the drilling diameter enlarging blade terminates and larger than a cross-sectional area of ​​the drill shaft and partially supporting the drill housing; as well as A stop flange, which has a larger diameter than the housing support boss, is formed in an end portion of the housing support boss and forms a coupling line along which the drill housing is coupled.

9. The drilling tool for maxillary sinus augmentation according to claim 8, wherein: The detachable protrusion is provided on one of the housing support boss of the implant drill and the drill housing, and a detachable protrusion groove detachably coupled to the detachable protrusion is formed on the other of the housing support boss of the implant drill and the drill housing.

10. The drilling tool for maxillary sinus augmentation according to claim 9, wherein: The detachable protrusion is formed to protrude radially outward from the housing support boss of the implant drill, and the detachable protrusion groove is formed to be recessed radially inward from the inner wall of the drill housing.

11. The drilling tool for maxillary sinus augmentation according to claim 10, wherein: The drill housing includes a hollow housing body having one end region supported in contact with a region of a housing support boss of a housing attachment / detachment coupling portion and a detachable protruding groove formed on one side of an inner wall.

12. The drilling tool for maxillary sinus augmentation according to claim 11, wherein: A plurality of elasticity-providing cutting grooves that provide elasticity are formed in an end region of the hollow housing where the detachable protruding groove is located.

13. The drilling tool for maxillary sinus augmentation according to claim 12, wherein: A plurality of cutting grooves for providing elasticity are arranged at equal intervals along the circumference of the hollow shell.

14. The drilling tool for maxillary sinus augmentation according to claim 11, wherein: At least one through hole is formed on the wall surface of the hollow shell.

15. The drilling tool for maxillary sinus augmentation according to claim 14, wherein: The through holes are arranged as grooves, and a plurality of through holes are arranged at equal intervals along the circumference of the hollow shell.

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