KR102544369B1 - Sinus drilling instrument - Google Patents

Abstract

The maxillary sinus puncture tool according to the present invention receives the rotational force of the handpiece in order to place an implant fixture in the patient's maxilla, and is inserted into the patient's oral cavity to perform a flapless lift procedure on the maxilla, and then to the maxilla. When viewed from the position where the fixture is placed, a rotation induction body spaced apart from the upper jaw below the upper jaw; and a cutting performing structure positioned between the rotation inducing body and the upper jaw.

Description

Maxillary sinus drilling tool {SINUS DRILLING INSTRUMENT}

The present invention relates to a maxillary sinus puncture tool for performing a skin-free plate elevation procedure on the maxilla by receiving rotational force of a handpiece in order to place a fixture of an implant in the maxilla of a patient.

In general, when examining the oral jaw bone of a patient visiting a dentist, the oral jaw bone consists of a lower jaw (= lower jaw bone) and an upper jaw (= upper jaw bone). Here, the description of the invention is limited to a flapless lift procedure that exposes the maxillary sinus (= empty space) located next to the patient's nose to the inside of the oral cavity by perforating the upper jaw from the inside of the oral cavity.

The maxillary sinuses are located close to the roots of the upper molars. Since the loss of the upper molar accelerates the loss of the maxilla over time, the maxillary sinus descends relatively quickly from the area where the upper molar is lost compared to the area where the upper molar is present. Therefore, the missing upper molars have a smaller maxillary thickness than the existing upper molars.

In the skinless plate elevation procedure, a drill coupled with a handpiece is brought into contact with the upper jaw at the loss of the upper molar, and the rotational force of the handpiece is transmitted to the drill to rotate the drill while drilling a hole in the upper jaw to improve oral health through the hole in the upper jaw. Exposing the maxillary sinus to the inside, placing autogenous bone or artificial bone under the sinus membrane inside the maxillary sinus through the maxillary hole while elevating the maxillary sinus membrane, and filling the maxillary hole with an implant fixture on the autogenous bone or artificial bone. insert

Since the flap-less lift procedure requires one small hole in the missing upper molar, the patient's recovery speed is faster than the flap lift procedure, and it is relatively simple and inexpensive compared to the flap lift procedure. However, since the skin-free lift procedure cuts the upper jaw using a sharp or curved part at the tip of the drill, after drilling a hole in the maxilla through a drill, the sharp part of the tip of the drill or Contact the curved part.

Here, the sharp or curved portion of the tip of the drill increases the probability of tearing the maxillary sinus membrane during maxillary cutting. The tear of the maxillary sinus membrane causes secondary infection in the maxillary sinus and respiratory tract by penetrating pathogens into the maxillary sinus. In addition, since the drill does not have a concave shape at the front end while performing the skin-free lift procedure on the patient's maxilla, it has a difficult structure to secure autogenous bone from the patient's maxilla.

Therefore, the drill drills a hole in the patient's maxilla and then inserts artificial bone into the maxillary sinus instead of autogenous bone, thereby increasing the treatment cost of the flapless lift procedure. On the other hand, the drill is similarly disclosed as a prior art in Korean Patent Publication No. 10-2016-0018976 and Korean Patent Registration No. 10-0630304.

Korean Patent Publication No. 10-2016-0018976 Korean Registered Patent Publication No. 10-0630304

The present invention has been made to solve the conventional problems, and when performing a skin-free lift procedure on the missing upper molar in the patient's maxilla, while drilling a hole in the maxilla, it is easy to secure autogenous bone from the maxilla, After drilling a hole, the purpose is to provide a maxillary sinus puncture tool suitable for not damaging the maxillary sinus membrane.

The maxillary sinus puncture tool according to the present invention receives the rotational force of the handpiece to place an implant fixture in the patient's maxilla, and after being inserted into the oral cavity of the patient to perform a flapless lift procedure on the maxilla, a rotation induction body spaced apart from the upper jaw below the upper jaw when viewed from the position where the fixture is placed in the upper jaw; and a cutting structure positioned between the rotation induction body and the upper jaw, wherein the rotation induction body has a cylindrical shape, the cutting structure is integrally formed with the rotation induction body, and the rotation induction body is formed integrally with the rotation induction body. It is located on the opposite side of the body and is characterized in that it has cutting surfaces obliquely contacting the gum of the upper jaw at the upper end of the cutting structure.

The rotation induction body is rotated by receiving the rotational force of the handpiece, and the cutting structure is interlocked with the rotation of the rotation induction body to sequentially cut the gum and alveolar bone in the upper jaw.

The cutting structure may include a plurality of angled cutting pillars gathered in a central axis of the rotation inducing body and positioned radially; Bone discharge grooves repeatedly positioned between the plurality of angled cutting posts in an edge region of the cutting structure; and a bone storage groove formed between the plurality of angled cutting pillars in a central region of the cutting structure, wherein the plurality of angled cutting pillars are formed along a central axis of the rotation induction body through one side of the individual angled cutting pillars. can contact each other.

When the plurality of angled cutting pillars are six on the rotation inducing body, the individual angled cutting pillars may include a first pillar surface extending from an outer circumferential surface of the rotation inducing body and having the same curvature as the outer circumferential surface; a second pillar surface extending from the first pillar surface and positioned at one side of the individual angled cutting pillar; and third and fourth pillar surfaces extending from the first pillar surface and positioned on the other side of the individual angled cutting pillar, wherein the bone discharge grooves are formed to have the same size on both sides of the individual angled cutting pillar. can

The individual angled cutting pillars further include first to third cutting surfaces located between first to fourth pillar surfaces on the opposite side of the rotation inducing body and connecting the first to fourth pillar surfaces, and The first to third cutting surfaces may form an angle with respect to each other.

The first cutting surface is located at a level higher than the second and third cutting surfaces at the upper end of the cutting structure, and is located between the second and third cutting surfaces and the second pillar surface, and the second cutting surface is positioned between the second and third cutting surfaces. A first cutting edge is provided at an edge formed with a surface of the pillar, and the first cutting edge is located for each angled cutting pillar in the plurality of angled cutting posts, and the entirety of the first cutting edges is positioned at the same level on the individual angled cutting posts. can be located.

The second cutting surface is located between the first and third cutting surfaces and the first, second, and fourth pillar faces and is directed toward the outside of the cutting structure, and is formed at an edge formed with the second pillar face. May have 2 cutting edges.

The third cutting surface is located between the first and second cutting surfaces, and the second and third pillar surfaces and is directed toward the bone storage groove, and may have a third cutting edge at an edge formed with the second pillar surface. there is.

The first pillar face and the second pillar face may have a fourth cutting edge at an edge between the first pillar face and the second pillar face.

The bone discharge groove part may communicate with the bone storage groove part along the third cutting surface and the third pillar surface of the individual angled cutting post.

When the plurality of angled cutting posts are made up of six on the rotation guide body and form a group of two each, the angled cutting posts for each group extend from the outer circumference of the rotation guide body and have the same curvature as the outer circumferential surface. a first left pillar face of the cutting post and a first right pillar face of the right angled cutting post; a second left pillar surface extending from the first left pillar surface and located on one side of the left angled cutting pillar; a second right pillar surface extending from the first right pillar surface and positioned at one side of the right angled cutting pillar; third and fourth left pillar surfaces extending from the first left pillar surface and positioned on the other side of the left angled cutting pillar; And third and fourth right pillar surfaces extending from the first right angled cutting pillar surface and located on the other side of the right angled cutting pillar, wherein the bone discharge grooves have different sizes on both sides of the left or right angled cutting pillar. can be formed as

The left angled cutting pillar further includes first to third left cutting surfaces located between the first to fourth left pillar faces on the opposite side of the rotation inducing body and connecting the first to fourth left pillar faces, , The right angled cutting pillar further includes first to third right cutting surfaces located between the first to fourth right pillar faces on the opposite side of the rotation inducing body and connecting the first to fourth right pillar faces. And, the first to third left cutting surfaces or the first to third right cutting surfaces form an angle with respect to each other, and the first to third left cutting surfaces are formed with the first to third right cutting surfaces. may have a different shape.

The first left cutting surface is located at a level higher than the second and third left cutting surfaces at the upper end of the cutting structure, and is located between the second and third left cutting surfaces and the second left pillar surface, A first left cutting edge is formed at an edge formed with the left second pillar surface, the first right cutting edge is located at a higher level than the second and third right cutting surfaces at the upper end of the cutting structure, It is located between the second and third right cutting surfaces and the second right pillar surface and has a first right cutting edge at an edge formed with the right second pillar surface, and the first left cutting edge is of the left angled cutting pillar. The apex of the first left cutting edge may be positioned at the uppermost level, and the apex of the first right cutting edge may be positioned at the uppermost level of the right angled cutting post.

The second left cutting surface is located between the first and third left cutting surfaces and the first to fourth left pillar surfaces, is directed toward the outside of the cutting structure, and forms an edge with the second left pillar surface. has a second left cutting edge, the second right cutting surface being positioned between the first and third right cutting surfaces and the first, second and fourth right pillar surfaces and directing toward the outside of the cutting performing structure; , A second right cutting edge may be formed at an edge formed with the second right pillar surface.

The third left cutting surface is located between the first and second left cutting surfaces and the second and third left pillar surfaces and is directed toward the bone storage groove, and the third left cutting surface forms an edge with the second left pillar surface. It has a cutting edge, and a third right cutting surface is located between the first and second right cutting surfaces and the second and third right pillar surfaces and is directed toward the bone storage groove, and is in contact with the second right pillar surface. It may have a third right cutting edge at the corner.

The first left pillar face and the second left pillar face have a fourth left cutting edge at an edge between the first left pillar face and the second left pillar face, and the first right pillar face and the second left pillar face The right pillar face may have a fourth right cutting edge at an edge between the first right pillar face and the second right pillar face.

The bone discharge groove, when viewed from the group-specific angled cutting post, along the third left pillar face and the third left cutting face of the left angled cutting post, and along the third right pillar face of the right angled cutting post And it may communicate with the bone storage groove along the third right cutting surface.

When the plurality of angled cutting pillars are five on the rotation induction body, the individual angled cutting pillars may include a first pillar surface extending from an outer circumferential surface of the rotation induction body and having the same curvature as the outer circumferential surface; a second pillar surface extending from the first pillar surface and positioned at one side of the individual angled cutting pillar; and third and fourth pillar surfaces extending from the first pillar surface and positioned on the other side of the individual angled cutting pillar, wherein the bone discharge grooves are formed to have the same size on both sides of the individual angled cutting pillar. can

The individual angled cutting pillars further include first to third cutting surfaces located between first to fourth pillar surfaces on the opposite side of the rotation inducing body and connecting the first to fourth pillar surfaces, and The first to third cutting surfaces may form an angle with respect to each other.

The first cutting surface is located at a level higher than the second and third cutting surfaces at the upper end of the cutting structure, and is located between the second and third cutting surfaces and the second and fourth pillar surfaces, It has a first cutting edge at an edge formed with a second pillar surface, and the first cutting edge is located for each angled cutting pillar in the plurality of angled cutting pillars, and is located at the uppermost level of the individual angled cutting pillars of the first cutting edge. The cusp can be located.

The second cutting face is located between the first cutting face and the first, second, and fourth pillar faces and is directed toward the outside of the cutting structure, and the second cutting edge forms an edge with the second pillar face. can have

The third cutting surface may be located between the first cutting surface and the second to fourth pillar surfaces, direct toward the bone storage groove, and have a third cutting edge at an edge formed with the second pillar surface.

The first pillar face and the second pillar face may have a fourth cutting edge at an edge between the first pillar face and the second pillar face.

The bone discharge groove part may communicate with the bone storage groove part along the third cutting surface of the individual angled cutting pillar and the third and fourth pillar surfaces.

When the plurality of angled cutting pillars are four on the rotation inducing body, the individual angled cutting pillars may include a first pillar surface extending from an outer circumferential surface of the rotation inducing body and having the same curvature as the outer circumferential surface; a second pillar surface extending from the first pillar surface and positioned at one side of the individual angled cutting pillar; and third and fourth pillar surfaces extending from the first pillar surface and positioned on the other side of the individual angled cutting pillar, wherein the bone discharge grooves are formed to have the same size on both sides of the individual angled cutting pillar. can

The individual angled cutting pillars further include first to third cutting surfaces located between first to fourth pillar surfaces on the opposite side of the rotation inducing body and connecting the first to fourth pillar surfaces, and The first to third cutting surfaces may form an angle with respect to each other.

The first cutting surface is located at a level higher than the second and third cutting surfaces at the upper end of the cutting structure, and is located between the second and third cutting surfaces and the second and fourth pillar surfaces, It has a first cutting edge at an edge formed with a second pillar surface, and the first cutting edge is located for each angled cutting pillar in the plurality of angled cutting pillars, and is located at the uppermost level of the individual angled cutting pillars of the first cutting edge. can be placed entirely.

The second cutting face is located between the first cutting face and the first, second, and fourth pillar faces and is directed toward the outside of the cutting structure, and the second cutting edge forms an edge with the second pillar face. can have

The third cutting surface may be located between the first cutting surface and the second to fourth pillar surfaces, direct toward the bone storage groove, and have a third cutting edge at an edge formed with the second pillar surface.

The first pillar face and the second pillar face may have a fourth cutting edge at an edge between the first pillar face and the second pillar face.

The bone discharge groove part may communicate with the bone storage groove part along the third cutting surface of the individual angled cutting pillar and the third and fourth pillar surfaces.

The maxillary sinus puncture tool according to the present invention,

Consisting of a cylindrical rotation induction body coupled with the handpiece and sequentially positioned below the patient's upper jaw and a multi-column cutting structure,

In the multi-column shape of the cutting structure, cutting surfaces forming angles with respect to each other are provided at the tips of the individual columnar shapes,

Since the multi-column shape of the cutting structure has a bone storage groove in the central region and a bone discharge groove between two adjacent pillar shapes along the edge region of the multi-column shape,

When performing the skinless plate elevation procedure on the missing upper molar in the patient's maxilla, while drilling a hole in the maxilla, autogenous bone is easily secured from the maxilla, and after the hole is drilled in the maxilla, the maxillary sinus membrane is not damaged.

1 is a side view schematically showing a maxillary sinus puncture tool according to the present invention.
FIG. 2 is a perspective view showing the maxillary sinus puncture tool of FIG. 1 in detail.
3(a) and 3(b) are schematic views in which the maxillary sinus puncture tool of FIG. 2 is cut by region using a virtual cutting plane P.
4(a) and 4(b) are perspective views showing a first modification of the maxillary sinus puncture tool of FIG. 1 by rotating it.
5(a) and 5(b) are schematic diagrams of the maxillary sinus puncture tool of FIG. 4(a) cut by region using a virtual cutting plane P.
6 is a perspective view showing a second modified example of the maxillary sinus puncture tool of FIG. 1;
7(a) and 7(b) are schematic diagrams of the maxillary sinus puncture tool of FIG. 6 cut by region using a virtual cutting plane P.
8 is a perspective view showing a third modified example of the maxillary sinus puncture tool of FIG. 1;
9(a) and 9(b) are schematic diagrams in which the maxillary sinus puncture tool of FIG. 8 is cut by region using a virtual cutting plane (P).

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention which follows refers to the accompanying drawings which illustrate, by way of example, specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable any person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. Additionally, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Similar reference numerals in the drawings indicate the same or similar functions in various aspects, and the length, area, thickness, and the like may be exaggerated for convenience.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention.

1 is a side view schematically showing a maxillary sinus puncture tool according to the present invention, FIG. 2 is a perspective view showing the maxillary sinus puncture tool of FIG. 1 in detail, and FIGS. 3 (a) and 3 (b) are virtual cutting planes (P ) It is a schematic diagram in which the maxillary sinus puncture tool of FIG. 2 is cut by region using.

1 to 3, the maxillary sinus puncture tool 70 according to the present invention is a handpiece (not shown) to place a fixture (not shown) of an implant in the upper jaw (= upper jaw bone) of the patient. It is configured to receive the rotational force of (not shown in the drawing) and perform a skinless plate elevation procedure on the upper jaw.

The maxillary sinus puncture tool 70, when viewed schematically, is inserted into the oral cavity of the patient and then viewed from the position of the attachment position of the maxillary fixture, a rotation guide body (25 in FIG. 2) spaced apart from the maxilla below the maxilla, and a cutting performing structure 68 positioned between the rotation inducing body 25 and the upper jaw.

Here, the rotation induction body 25, as shown in Figure 2, is made of a cylindrical shape. As shown in FIG. 2, the cutting structure 68 is integrally formed with the rotation induction body, is located on the opposite side of the rotation induction body 25, and is obliquely contacted with the gum of the upper jaw at the upper end of the cutting structure 68. It has cutting faces (53, 56, 59) to be.

In detail, the maxillary sinus puncture tool 70 is integrally formed with the connection member 10 of FIG. 1 and can be connected to the handpiece through the coupling end 5 of the connection member 10. Therefore, the rotation inducing body 25 is rotated by receiving the rotational force of the handpiece (R in FIG. 3(b)). The cutting structure 68 sequentially cuts the gum and alveolar bone in the upper jaw in conjunction with the rotation of the rotation inducing body 25 .

As shown in FIG. 2 , the cutting structure includes a plurality of angular cutting posts 64 , a bone discharge groove G1 , and a bone storage groove G2 . The plurality of angled cutting pillars 64 are radially positioned at the central axis of the rotation inducing body 25 . The bone discharging groove portion G1 is repeatedly positioned between the plurality of angled cutting posts 64 in the edge region of the cutting structure 70 .

The bone storage groove G2 is formed between the plurality of angled cutting posts 64 in the central region of the cutting structure 70 . As shown in FIG. 2 , the plurality of angled cutting posts 64 contact each other along the central axis of the rotation induction body 25 through one side of the individual angled cutting posts 64 .

As shown in FIG. 2, when the plurality of angled cutting posts are six on the rotation guide body 25, the individual angled cutting posts 64 extend from the outer circumferential surface of the rotation guide body 25 and have the same curvature as the outer circumferential surface. A first pillar face 32 having a, a second pillar face 34 extending from the first pillar face 32 and located on one side of the individual angled cutting pillar 64, and from the first pillar face 32 It extends and includes third and fourth pillar faces 36 and 38 located on the other side of the individual angled cutting posts 64 .

Here, the bone discharge grooves (G1) are formed in the same size on both sides of the individual angled cutting posts (64). As shown in FIG. 2, the individual angled cutting pillars 64 are located between the first to fourth pillar faces 32, 34, 36, and 38 on the opposite side of the rotation induction body 25 to the first to fourth pillars. It further includes first to third cutting surfaces 53, 56, and 59 connecting the surfaces 32, 34, 36, and 38. The first to third cutting surfaces 53, 56 and 59 form an angle with respect to each other.

The first cutting surface 53 is located at a higher level than the second and third cutting surfaces at the upper end of the cutting structure when considering FIGS. 2 and 3(a), and FIGS. 2 and 3(a) ) and FIG. 3 (b), the second and third cutting surfaces 56 and 59, and the second pillar surface 34 are located between the first pillar surface 34 and the corner forming the first It has a cutting edge (52).

Considering FIGS. 2 and 3(a), the first cutting edge 52 is positioned for each angled cutting post 64 in the plurality of angled cutting posts 64 and is identical to each angled cutting post 64. Place the entirety of the first cutting edge 52 on a level. The second cutting surface 56 is located between the first and third cutting surfaces 53 and 59 and the first, second and fourth pillar surfaces 32, 34 and 38, as shown in FIG. It is directed toward the outside of the cutting performing structure 70 and has a second cutting edge (not shown in the drawing) at an edge forming with the second pillar face 34 .

As shown in FIG. 2, the third cutting surface 59 is located between the first and second cutting surfaces 53 and 56 and the second and third pillar surfaces 34 and 36, and the bone storage groove portion G2 ), and has a third cutting edge (not shown in the drawing) at the corner formed with the second pillar surface 34. As shown in FIG. 2, the first pillar face 32 and the second pillar face 34 have a fourth cutting edge 45 at the corner between the first pillar face 32 and the second pillar face 34. have

As shown in FIG. 2 , the bone discharge groove G1 communicates with the bone storage groove G2 along the third cutting surface 59 of the individual angled cutting pillar 64 and the third pillar surface 36 .

4(a) and 4(b) are perspective views showing a first modification of the maxillary sinus puncture tool of FIG. 1 by rotating (R), and FIGS. 5(a) and 5(b) are virtual cutting planes P ) is a schematic diagram of the maxillary sinus puncture tool of FIG. 4 (a) cut by region.

4 and 5, the maxillary sinus drilling tool 160 has a structure similar to the maxillary sinus drilling tool 70 of FIGS. 1 to 3, but a plurality of angled cutting posts 158 in the cutting structure 158 , has a structure different from the plurality of angled cutting posts 64 in the cutting structure 68 .

Looking in more detail, when the plurality of angled cutting posts 158 are composed of 6 pieces on the rotation induction body 85 and form a group of 2 pieces each, the angled cutting posts 154 for each group are shown in FIG. 4 (a) ) and FIG. 4 (b), the first left pillar surface of the left angled cutting pillar (118 in FIG. 92) and the first right pillar surface 122 of the right angled cutting pillar (148 in FIG. 4(b)).

In addition, the group-wise angled cutting posts 154 are located on one side of the left angled cutting posts 118 extending from the first left pillar face 92, considering FIGS. 4(a) and 4(b) It includes a second left pillar face 94, and a second right pillar face 124 extending from the first right pillar face 122 and located on one side of the right angled cutting pillar 148.

In addition, when considering FIGS. 4 (a) and 4 (b), the group-specific angled cutting posts 154 extend from the first left pillar face 92 and are located on the other side of the left angled cutting posts 118. The third and fourth left pillar surfaces 96 and 98, and the third and fourth right pillar surfaces 126 and 128 extending from the first right pillar face 122 and located on the other side of the right angled cutting pillar 148 includes

Here, the bone discharge grooves G1 are formed in different sizes on both sides of the left or right angled cutting posts 118 or 148. As shown in FIG. 4(a), the left angled cutting post 118 is located between the first to fourth left pillar faces 92, 94, 96, and 98 on the opposite side of the rotation induction body 85 to form a first The first to third left cutting surfaces 103, 106, and 109 connecting the to fourth left pillar surfaces 92, 94, 96, and 98 are further included.

As shown in FIG. 4(b), the right angled cutting pillar 148 is located between the first to fourth right pillar faces 122, 124, 126, and 128 on the opposite side of the rotation induction body 85, and the first The first to third right cutting surfaces 133, 136, and 139 connecting the to fourth right pillar surfaces 122, 124, 126, and 128 are further included.

Here, considering the first to third left cutting surfaces 103, 106, and 109, FIGS. 4(a) and 4(b), or the first to third right cutting surfaces 133, 136, and 139 ) form an angle with respect to each other. The first to third left cutting surfaces 103, 106, and 109 are the first to third right cutting surfaces 133, 136, and 139 when considering FIGS. 4(a) and 4(b). have a different shape.

Considering FIGS. 5(a) and 5(b), the first left cutting surface 103 is lower than the second and third left cutting surfaces 106 and 109 at the upper end of the cutting structure 160. It is located at a higher level, and is located between the second and third left cutting surfaces 106 and 109 and the second left pillar surface 94, considering FIGS. 4 (a) and 5 (b) It has a first left cutting edge 102 at the corner formed with the left second pillar face 94.

Considering FIGS. 5 (a) and 5 (b), the first right cutting surface 133 is larger than the second and third right cutting surfaces 136 and 139 at the upper end of the cutting structure 160. It is located at a higher level, and is located between the second and third right cutting surfaces 136 and 139 and the second right pillar surface 124, considering FIGS. 4(b) and 5(b) It has a first right cutting edge 132 at the corner formed with the right second pillar face 124.

Here, the first left cutting edge 102 is, considering FIGS. 5 (a) and 5 (b), the apex of the first left cutting edge 102 at the uppermost level of the left angled cutting post 118 Position (C1). The first right cutting edge 132, considering FIGS. 5 (a) and 5 (b), has a cusp C2 of the first right cutting edge 132 at the uppermost level of the right angled cutting post 148. ) is placed.

As shown in FIG. 4(a), the second left cutting surface 102 includes the first and third left cutting surfaces 103 and 106 and the first to fourth left pillar surfaces 92, 94, 96, and 98 ) and is directed toward the outside of the cutting performing structure 160, and has a second left cutting edge (not shown in the drawing) at an edge forming with the second left pillar face 94.

As shown in FIG. 4(b), the second right cutting surface 136 includes the first and third right cutting surfaces 133 and 139, and the first, second and fourth right pillar surfaces 122, 124, 128) and directs toward the outside of the cutting structure 160, and has a second right cutting edge (not shown in the figure) at an edge forming with the second right pillar face 124.

The third left cutting surface 109 is located between the first and second left cutting surfaces 103 and 106 and the second and third left pillar surfaces 94 and 96, as shown in FIG. 4(a). It is directed toward the bone storage groove G4, and has a third left cutting edge (not shown in the drawing) at the corner formed with the second left pillar surface 94.

The third right cutting surface 139 is located between the first and second right cutting surfaces 133 and 1360 and the second and third right pillar surfaces 124 and 126, as shown in FIG. It is directed toward the bone storage groove G4 and has a third right cutting edge (not shown in the drawing) at an edge formed with the second right pillar surface 124.

The first left pillar face 92 and the second left pillar face 94 are located at the corners between the first left pillar face 92 and the second left pillar face 94, as shown in FIG. 4(a). It has 4 left cutting edges (114). The first right pillar face 122 and the second right pillar face 124 are located at the corners between the first right pillar face 122 and the second right pillar face 124, as shown in FIG. 4(b). It has 4 right cutting edges (144).

As shown in FIGS. 4(a) and 4(b), the bone discharge groove G3 is the third left pillar surface 96 of the left angled cutting pillar 118 when viewed from the angled cutting pillar 154 for each group. And along the third left cutting surface 109, and along the third right pillar surface 126 and the third right cutting surface 139 of the right angled cutting post 148, it communicates with the bone storage groove portion G4.

6 is a perspective view showing a second modified example of the maxillary sinus puncture tool of FIG. 1, and FIGS. 7 (a) and 7 (b) cut the maxillary sinus puncture tool of FIG. 6 by region using a virtual cutting plane (P). It is a schematic diagram.

6 and 7, the maxillary sinus drilling tool 220 has a structure similar to the maxillary sinus drilling tool 70 of FIGS. 1 to 3, but a plurality of angled cutting posts 214 in the cutting structure 218 , has a structure different from the plurality of angled cutting posts 64 in the cutting structure 68 .

More specifically, when the plurality of angled cutting posts 214 are five on the rotation induction body 205, as shown in FIG. 6, the individual angled cutting posts 214 are It extends from the outer circumferential surface of and includes a first pillar surface 182 having the same curvature as the outer circumferential surface.

In addition, the individual angled cutting pillars 214, as shown in FIG. 6, extend from the first pillar surface 182 and are located on one side of the individual angled cutting pillars 214, the second pillar surface 184, and the first It includes third and fourth pillar faces 186 and 188 extending from the pillar face 182 and located on the other side of the individual angled cutting pillar 214 .

Here, as shown in FIG. 6 , the bone discharge grooves G5 are formed in the same size on both sides of the individual angled cutting pillars 214 . As shown in FIG. 6, the individual angled cutting pillars 214 are located between the first to fourth pillar faces 182, 184, 186, and 188 on the opposite side of the rotation induction body 205 to the first to fourth pillars. First to third cutting surfaces 193, 196, and 199 connecting the surfaces 182, 184, 186, and 188 are further included.

Here, the first to third cutting surfaces 193, 196, and 199 form an angle with respect to each other, as shown in FIG. The first cutting surface 193 is higher than the second and third cutting surfaces 196 and 199 at the top of the cutting structure 218, considering FIGS. 7(a) and 7(b). level, and is located between the second and third cutting surfaces 196 and 199 and the second and fourth pillar surfaces 184 and 188, considering FIGS. 7(a) and 7(b) It has a first cutting edge 192 at the corner formed with the second pillar face 184.

Here, the first cutting blade 192 is positioned for each angular cutting beam 214 in the plurality of angular cutting beams 214, considering FIG. Place the apical point (C) of the first cutting edge 192 on. As shown in FIG. 6 , the second cutting surface 196 is positioned between the first cutting surface 193 and the first, second, and fourth pillar surfaces 182, 184, and 188 to perform the cutting structure 218. ), and has a second cutting edge (not shown in the figure) at the corner formed with the second pillar face 184.

As shown in FIG. 6, the third cutting surface 199 is located between the first cutting surface 193 and the second to fourth pillar surfaces 184, 186, and 188 toward the bone storage groove G6. oriented, and has a third cutting edge (not shown in the drawing) at the corner formed with the second pillar surface 184. As shown in FIG. 6, the first pillar face 182 and the second pillar face 184 have a fourth cutting edge 105 at an edge between the first pillar face 182 and the second pillar face 184. have

As shown in FIG. 6, the bone discharge groove G5 is formed along the third cutting surface 199 of the individual angled cutting pillar 214 and along the third and fourth pillar surfaces 186 and 188. communicate with

8 is a perspective view showing a third modified example of the maxillary sinus puncture tool of FIG. 1, and FIGS. 9(a) and 9(b) cut the maxillary sinus puncture tool of FIG. 8 by region using a virtual cutting plane P. It is a schematic diagram.

8 and 9, the maxillary sinus drilling tool 280 has a structure similar to the maxillary sinus drilling tool 70 of FIGS. 1 to 3, but a plurality of angled cutting posts 274 in the cutting structure 278 , has a structure different from the plurality of angled cutting posts 64 in the cutting structure 68 .

More specifically, when the plurality of angled cutting pillars 274 are formed of four on the rotation induction body 235, the individual angled cutting pillars 274 are, as shown in FIG. 8, of the rotation induction body 235 It includes a first pillar face 242 extending from the outer circumferential surface and having the same curvature as the outer circumferential surface.

In addition, the individual angled cutting pillars 274, as shown in FIG. 8, extend from the first pillar surface 242 and are located on one side of the individual angled cutting pillars 274, the second pillar surface 244, and the first It includes third and fourth pillar faces 246 and 248 extending from the pillar face 242 and located on the other side of the individual angled cutting posts 274 .

Here, as shown in FIG. 8 , the bone discharge grooves G7 are formed in the same size on both sides of the individual angled cutting posts 274 . As shown in FIG. 8, the individual angled cutting pillars 274 are located between the first to fourth pillar faces 242, 244, 246, and 248 on the opposite side of the rotation inducing body 235 to the first to fourth pillars. First to third cutting surfaces 253, 256, and 259 connecting the surfaces 242, 244, 246, and 248 are further included.

Here, the first to third cutting surfaces 253, 256, and 259 form an angle with respect to each other. The first cutting surface 253 is higher than the second and third cutting surfaces 256, 259 at the top of the cutting structure 278, considering FIGS. 9(a) and 9(b). It is located on the level, and considering FIG. 9 (b), it is located between the second and third cutting surfaces 256 and 259, and the second and fourth pillar surfaces 244 and 248, and the second pillar surface ( 244) and has a first cutting edge 252 at the corner.

Here, the first cutting edge 252 is positioned for each angular cutting pillar 274 in the plurality of angular cutting pillars 274, considering FIGS. 9(a) and 9(b), and Position the entirety of the first cutting edge 252 at the top level of (274).

As shown in FIG. 8 , the second cutting surface 256 is positioned between the first cutting surface 253 and the first, second, and fourth pillar surfaces 242, 244, and 248 to perform the cutting structure 278. ), and has a second cutting edge (not shown in the drawing) at the corner formed with the second pillar face 244.

As shown in FIG. 8, the third cutting surface 259 is located between the first cutting surface 253 and the second to fourth pillar surfaces 244, 246, and 248 toward the bone storage groove G8. oriented, and has a third cutting edge (not shown in the drawing) at the corner formed with the second pillar surface 244. As shown in FIG. 8, the first pillar face 242 and the second pillar face 244 have a fourth cutting edge 265 at an edge between the first pillar face 242 and the second pillar face 244. have

As shown in FIG. 8, the bone discharge groove G7 is formed along the third cutting surface 259 of the individual angled cutting pillar 274 and along the third and fourth pillar surfaces 246 and 248. communicate with

25; rotation induction body, 32-38; 1st to 4th pillar faces
45; Cutting Edge, 53-59; First to third cutting surfaces
64; angled cutting posts, 68; Cutting performance structure
G1; Bone drainage groove, G2; bone storage groove
70; maxillary sinus puncture tool

Claims (31)

In the maxillary sinus puncture tool for performing a skin-free plate elevation procedure on the maxilla by receiving the rotational force of the handpiece to place a fixture of the implant in the maxilla of the patient,
When viewed from the placement position of the fixture in the upper jaw after being inserted into the oral cavity of the patient,
a rotation induction body spaced apart from the upper jaw below the upper jaw; and
And a cutting performing structure positioned between the rotation induction body and the upper jaw,
The rotation induction body,
It is made in the shape of a cylinder,
The cutting performance structure,
It is integrally formed with the rotation induction body,
It has cutting surfaces located on the opposite side of the rotation induction body and inclinedly contacting the upper gum of the upper jaw at the upper end of the cutting structure,
The cutting performance structure,
a plurality of angled cutting pillars gathered in a central axis of the rotation induction body and positioned radially;
Bone discharge grooves repeatedly positioned between the plurality of angled cutting posts in an edge region of the cutting structure; and
And a bone storage groove formed between the plurality of angled cutting pillars in the central region of the cutting structure,
The plurality of angled cutting pillars,
Contact each other along the central axis of the rotation inducing body through one side of the individual angled cutting pillars,
When the plurality of angled cutting pillars are made of six on the rotation induction body,
The individual angled cutting pillars,
a first pillar surface extending from an outer circumferential surface of the rotation inducing body and having the same curvature as the outer circumferential surface;
a second pillar surface extending from the first pillar surface and positioned at one side of the individual angled cutting pillar; and
And third and fourth pillar faces extending from the first pillar face and located on the other side of the individual angled cutting pillar,
The bone discharge groove,
It is formed in the same size on both sides of the individual angled cutting pillars,
The individual angled cutting pillars,
Further comprising first to third cutting surfaces located between the first to fourth pillar surfaces on the opposite side of the rotation inducing body and connecting the first to fourth pillar surfaces,
The first to third cutting surfaces,
Maxillary sinus perforation tools, angled relative to each other.
According to claim 1,
The rotation induction body,
It is rotated by receiving the rotational force of the handpiece,
The cutting performance structure,
A maxillary sinus drilling tool that is interlocked with the rotation of the rotation induction body to sequentially cut the gum and alveolar bone in the upper jaw.
delete delete delete According to claim 1,
The first cutting surface is
Located at a level higher than the second and third cutting surfaces at the upper end of the cutting performing structure,
It is located between the second and third cutting surfaces and the second pillar surface and has a first cutting edge at an edge formed with the second pillar surface,
The first cutting edge,
The maxillary sinus drilling tool, which is positioned for each angled cutting post in the plurality of angled cutting posts to position the entirety of the first cutting edge at the same level on the individual angled cutting posts.
According to claim 1,
The second cutting surface is
located between the first and third cutting faces and the first, second and fourth pillar faces and directed towards the exterior of the cutting performing structure;
A maxillary sinus drilling tool having a second cutting edge at an edge formed with the second column surface.
According to claim 1,
The third cutting surface,
Located between the first and second cutting surfaces and the second and third pillar surfaces and directed toward the bone storage groove;
Having a third cutting edge at the corner formed with the second pillar surface, maxillary sinus drilling tool.
According to claim 1,
The first pillar surface and the second pillar surface,
The maxillary sinus drilling tool having a fourth cutting edge at the corner between the first pillar face and the second pillar face.
According to claim 1,
The bone discharge groove,
The maxillary sinus drilling tool communicating with the bone storage groove along the third cutting surface and the third pillar surface of the individual angled cutting pillar.
delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete

Images