Gingiva removal device for implant surgery

Abstract

One embodiment of the present invention provides a gingiva removal device for implant surgery, the device comprising: a handle part having a mounting part coupled to a dental handpiece at the upper end thereof; a body part connected to the lower side of the handle part and having a hollow part opened downward, the body part having an external cutting part having a circular first cutting blade for separating the gingiva at an implant placement position from the surrounding gingiva along the lower end edge thereof; and an internal cutting part coupled to an inner hollow part of the body part and having a second cutting blade for removing the gingiva at the implant placement position at the lower end thereof.

Description

Gingival removal device for implant surgery

[0001] The present invention relates to a gum removal device for implant surgery.

[0002] Implant surgery is a procedure in which an implant made of titanium, which is harmless to the human body, is implanted into the alveolar bone of the extracted area to replace the lost tooth root, and then an artificial tooth is fixed to the implant to restore the function of the tooth.

[0003] In the case of general prosthetics or dentures, the surrounding teeth and bones deteriorate over time, but implants do not damage the surrounding tooth tissue, and have the same function and shape as natural teeth, but do not develop cavities, so they have the advantage of being able to be used semi-permanently.

[0004] Implant surgery varies depending on the type of implant, but for the most widely used screw-type implant, it is performed through a series of processes, including removing the gingiva above the alveolar bone where the implant will be placed, drilling the alveolar bone to form an implant bed, placing the implant in the implant bed, stabilizing the implant so that osseointegration occurs, bonding an abutment to the implant, and bonding an artificial tooth to the abutment.

[0005] As such, implant surgery involves drilling the alveolar bone to form the implant bed, and many dental drills have been developed specifically for this drilling process.

[0006] Additionally, a center for drilling is marked in advance on the alveolar bone so that a dental drill can form an implant bed at the exact implantation location, and a gingival removal device is used to remove the gingiva covering the upper part of the alveolar bone for this purpose.

[0007] However, although conventional gum removal devices can form a circular incision line in the gums of the drilling area with a circular cutting blade formed at the bottom of the main body, in reality, in order to completely remove the gums, an additional operation of removing and scraping the gums using a separate scalpel is inevitably required.

[0008] Although this gingival removal process is a simple operation, incomplete gingival removal places a considerable burden on the practitioner, as some remaining gingiva can potentially interfere with the complete fusion of the implant and alveolar bone if it flows into the implant bed.

[0009] Therefore, in actual implant surgery, even after removing the gums in advance, there are many cases where cumbersome work such as additionally removing the remaining gums is performed again during the implant placement process.

[0010] Prior art literature

[0011] Korean Patent Publication No. 10-2009-0042719 (April 30, 2009)

[0012] The present invention is intended to solve the problems of the prior art described above, and an object of the present invention is to provide a gingival removal device for implant surgery, which includes an outer circular blade for separating the gingiva at the implant placement site from the surrounding gingiva and an inner cutting blade for removing the gingiva at the implant placement site.

[0013] In order to achieve the above object, one aspect of the present invention provides a gingival removal device for implant surgery, comprising: a handle having a mounting portion formed at an upper portion thereof to be coupled to a dental handpiece; a body portion connected to a lower side of the handle portion and having a hollow portion open downwardly; the body portion having an outer cutting portion having a first circular cutting edge formed along a lower edge thereof for separating gingiva at an implant placement site from surrounding gingiva; and an inner cutting portion coupled to an inner hollow portion of the body portion and having a second cutting edge formed at a lower end thereof for removing gingiva at an implant placement site.

[0014] In one embodiment of the present invention, it may be a gingival removal device for implant surgery, characterized in that one or more discharge holes for discharge of removed gingiva are formed on a side surface of the body portion.

[0015] In one embodiment of the present invention, the at least one discharge hole may be a gingival removal device for implant surgery, characterized in that it has a square shape and includes a first discharge hole and a second discharge hole that face each other.

[0016] In one embodiment of the present invention, the hollow portion of the body portion may include a first hollow portion on the upper side, a second hollow portion connected downward from the first hollow portion and having an inner diameter larger than that of the first hollow portion, and a step portion connecting the first hollow portion and the second hollow portion, and the internal cutting portion may include a connecting portion press-fitted to the inner circumferential surface of the first hollow portion, a block portion connected downward from the connecting portion and having an outer diameter larger than that of the connecting portion and positioned and fixed to the step portion, and a plate-shaped extension portion connected downward from the block portion, and a cutting blade portion having a second cutting blade connected downward from the extension portion.

[0017] In one embodiment of the present invention, the second hollow portion is divided into a first space portion and a second space portion by the cutting edge portion crossing the center of the second hollow portion, the first space portion is communicated with the first discharge hole, and the second space portion is communicated with the second discharge hole, which may be a gingival removal device for implant surgery.

[0018] In one embodiment of the present invention, the lower surface of the block portion may be a gingival removal device for implant surgery, characterized in that it is coincident with the upper edge of the discharge hole or protrudes downward from the upper edge of the discharge hole.

[0019] In one embodiment of the present invention, the cutting blade portion may be a gingival removal device for implant surgery, characterized in that it further includes a cutting portion extending upwardly in an inclined manner from the second cutting blade in a straight line across the center of the second hollow portion.

[0020] In one embodiment of the present invention, the device may be a gum removal device for implant surgery, characterized in that the width (L1) of the second cutting edge is more than half of the inner diameter (D1) of the second hollow portion.

[0021] In one embodiment of the present invention, the diameter (L3) of the block portion is equal to the width (L2) of the extension portion, but is formed to correspond to the inner diameter (D1) of the second hollow portion or to a size that forms a predetermined tolerance with the inner diameter (D1) of the second hollow portion, which may be a gingival removal device for implant surgery.

[0022] According to one aspect of the present invention, the gingival removal device for implant surgery of the present invention can improve user convenience by including a structure that can efficiently cut the gingiva at the implant placement site through an internal cutting portion and smoothly discharge the cutting material.

[0023] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0024] FIG. 1 is a perspective view of a gum removal device for implant surgery according to one embodiment of the present invention.

[0025] Figures 2 (a) and (b) are a front view and a side view, respectively, of a gum removal device for implant surgery according to one embodiment of the present invention.

[0026] Figure 3 is a bottom view of a gingival removal device for implant surgery according to one embodiment of the present invention.

[0027] Figure 4 is an exploded view of a gingival removal device for implant surgery according to another embodiment of the present invention.

[0028] Figures 5 (a) and (b) are a perspective view and a bottom perspective view, respectively, of an internal cutting portion according to one embodiment of the present invention.

[0029] Figure 6 is a partial cross-sectional view of a gingival removal device for implant surgery according to one embodiment of the present invention.

[0030] Figure 7 is a partial projection side view of a gingival removal device for implant surgery according to one embodiment of the present invention.

[0031] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0032] Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that the other components may be included, unless otherwise specifically stated.

[0033] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0034] FIG. 1 is a perspective view of a gingival removal device for implant surgery according to an embodiment of the present invention, (a) and (b) of FIG. 2 are a front view and a side view, respectively, of a gingival removal device for implant surgery according to an embodiment of the present invention, FIG. 3 is a bottom view of a gingival removal device for implant surgery according to an embodiment of the present invention, FIG. 4 is an exploded view of a gingival removal device for implant surgery according to an embodiment of the present invention, and (a) and (b) of FIG. 5 are a perspective view and a bottom perspective view, respectively, of an internal cutting part according to an embodiment of the present invention, FIG. 6 is a partial cross-sectional view of a gingival removal device for implant surgery according to an embodiment of the present invention, and FIG. 7 is a partial projection side view of a gingival removal device for implant surgery according to an embodiment of the present invention.

[0035] Referring to FIGS. 1 to 7, a gum removal device (1000) for implant surgery according to one embodiment of the present invention includes a handle (100), a body (200), and an internal cutting portion (300).

[0036] More specifically, a gingival removal device (1000) for implant surgery is configured to include a shaft (100) having a mounting portion (110) formed at the upper end to be coupled to a dental handpiece (not shown), a body (200) connected to the lower side of the shaft (100) and having a downwardly open hollow portion (230), the body (200) having an outer cutting portion (220) having a first circular cutting edge (221) formed along the lower edge to separate the gingiva at the implant placement site from the surrounding gingiva, and an inner cutting portion (300) coupled to the inner hollow portion (230) of the body (200) and having a second cutting edge (312) formed at the lower end to remove the gingiva at the implant placement site.

[0037] This gingival removal device (1000) for implant surgery is used in a preliminary step of the drilling step for forming an implant bed, and is a device that removes the gingiva so that the alveolar bone at the implant placement location in the oral cavity is exposed to the outside.

[0038] The shaft (100) is engaged with a tool for rotation and extends in the same direction as the central axis. Specifically, the shaft (100) is composed of a mounting portion (110) that is coupled with a tool for rotation, for example, a dental handpiece, and a pillar portion (120) that extends from the mounting portion (110).

[0039] The mounting portion (110) may be formed in an asymmetrical shape, rather than symmetrical, with respect to the central axis so as to be easily attached to a tool for rotation. Furthermore, the mounting portion may include a section having a hexagonal or polygonal cross-section. By having such a shape, the mounting portion (110) can rotate together with the tool when attached to the tool for rotation.

[0040] The pillar portion (120) extends in the same direction as the central axis, which is the axis of rotation, and is formed in a cylindrical shape. This pillar portion (120) is integrally connected to the mounting portion (110) and is also integrally connected to the body portion (200) described below. Therefore, the pillar portion (120) can transmit the rotational force transmitted from the tool for rotation to the body portion (200).

[0041] The shaft (100) can be formed regardless of the diameter of the body (200), but it is preferable to have a diameter smaller than the diameter of the body (200).

[0042] The body part (200) is connected to the lower side of the handle part (100) and rotates integrally with the handle part (100), and includes a cylindrical part (210), an external cutting part (220), and a hollow part (230). At this time, it is preferable that the cylindrical part (210) and the external cutting part (220) are provided integrally.

[0043] For example, the cylindrical portion (210) may be inserted into a guide hole of a guide device (not shown) that guides the implant placement position and may have an outer diameter corresponding to the inner diameter of the guide hole so as to be rotationally supported, or may have an outer diameter slightly smaller than the inner diameter of the guide hole.

[0044] The external cutting portion (220) is connected to the lower end of the cylindrical portion (210) at an angle so that the outer diameter becomes smaller as it goes downward, but an opening is formed at the lower end to communicate with the hollow portion (230), and a circular first cutting edge (221) is formed on the lower edge of the opening portion to separate the gingiva at the implant placement site from the surrounding gingiva.

[0045] The circular first cutting blade (221) directly contacts the gingiva at the implant placement site and cuts the gingiva when rotated. At this time, the gingiva at the implant placement site is cut into a circular shape and flows into the hollow portion (230).

[0046] The circular first cutting edge (221) cuts the gingiva at the implant placement site and separates it from the surrounding gingiva. At this time, the outer diameter of the outer cutting portion (220) increases as it goes upward, so that when the circular first cutting edge (221) is inserted into the gingiva at the implant placement site, the surrounding gingiva is pushed outward, and the outer surface comes into close contact with the surrounding gingiva.

[0047] Meanwhile, one or more discharge holes (222) may be formed on the side of the body portion (200), preferably on the side of the outer cutting portion (220), for discharging the cutting material generated by the first cutting edge (221) and the second cutting edge (312).

[0048] At this time, it is desirable to understand that the cutting material means the gum removed from the implant placement site, and the cutting material can flow out through one or more discharge holes (222) connected to the hollow portion (230).

[0049] In one example, one or more exhaust holes (222) may be formed in a square shape and include a first exhaust hole and a second exhaust hole facing each other.

[0050] Meanwhile, a hollow portion (230) open downward is formed inside the body portion (200). This hollow portion (230) includes, from the upper side, a first hollow portion (231), a step portion (233), and a second hollow portion (232).

[0051] More specifically, the hollow portion (230) is configured to include a first hollow portion (231) on the upper side, a second hollow portion (232) connected downward from the first hollow portion (231) and having an inner diameter larger than that of the first hollow portion (231), and a step portion (233) connecting the first hollow portion (231) and the second hollow portion (232).

[0052] The first hollow portion (231) having a relatively small inner diameter is the portion where the joining portion (320) of the internal cutting portion (300) described later is press-fitted, and the second hollow portion (232) having a relatively large inner diameter is the portion where the cutting materials generated by the first cutting edge (221) and the second cutting edge (312) are introduced.

[0053] In addition, the block portion (330) of the internal cutting portion (300) described later is in contact with the step portion (233) between the first hollow portion (231) and the second hollow portion (232) and is fixed in position.

[0054] The central axis of the hollow portion (230) may coincide with the rotation axis of the gum removal device (1000) for implant surgery.

[0055] Referring to FIGS. 4 to 6, an internal cutting portion (300) is provided on the inside of the body portion (200), and a second cutting edge (312) is formed on the inside of a circular first cutting edge (221) at the bottom.

[0056] At this time, the internal cutting portion (300) serves to cut the gingiva at the implant placement site separated from the surrounding gingiva through the circular first cutting blade (221). The cutting material flows out through the second hollow portion (232) and one or more discharge holes (222) connected to the second hollow portion (232).

[0057] This internal cutting portion (300) may include a joining portion (320), a block portion (330), and a cutting edge portion (310) from the upper side.

[0058] More specifically, the inner cutting part (300) is configured to include a joining part (320) that is press-fitted to the inner surface of the first hollow part (231), a block part (330) that is connected downward from the joining part (320), has an outer diameter larger than the joining part (320), and is positionally fixed to the step part (233), and a cutting blade part (310) that is provided with a plate-shaped extension part (311) that is connected downward from the block part (330) and a second cutting blade (312) that is connected downward from the extension part (311).

[0059] Referring to FIG. 3, the second hollow portion (232) is divided into a first space portion (232a) and a second space portion (232b) by a cutting edge portion (310) crossing the center of the second hollow portion (232), and the first space portion (232a) is connected to the first discharge hole of the external cutting portion (220), and the second space portion (232b) is connected to the second discharge hole of the external cutting portion (220), thereby facilitating discharge of the cutting material.

[0060] The extension (311) of the cutting blade (310) has a constant width and is formed in a plate shape and can extend to the lower side of the block (320). The width of this extension (311) can be the same as the diameter of the block (330).

[0061] The second cutting edge (312) of the cutting edge portion (310) is connected downward from the extension portion (311) and may be formed in a straight shape along the lower portion. However, the shape of the second cutting edge (312) is not limited thereto, and various shapes that can facilitate gingival cutting, such as a sawtooth shape or a wave shape, may be applied.

[0062] Meanwhile, the second cutting edge (312) is preferably placed on the inside of the circular first cutting edge (221), but is preferably placed at a predetermined distance from the lower end of the circular first cutting edge (221) upward.

[0063] That is, the second cutting edge (312) is not exposed to the lower end of the circular first cutting edge (221), and when the lower end of the circular first cutting edge (221) touches the alveolar bone, the second cutting edge (312) may not touch the alveolar bone.

[0064] The first circular cutting edge (221) is inserted toward the alveolar bone and separates and cuts the gingiva at the implant placement location from the surrounding gingiva, and the second cutting edge (312) is spaced upward from the lower end of the first circular cutting edge (221) to prevent damage to the alveolar bone.

[0065] Meanwhile, the cutting edge portion (310) may further include a cutting portion (313) extending upwardly and slantingly from the second cutting edge (312) in the shape of a straight line crossing the center of the second hollow portion (232).

[0066] That is, the cutting portion (313) can form a slope extending from one side of the second cutting edge (312) to the extension portion (311), whereby the width (L1) of the second cutting edge (312) can be formed to be smaller than the width (L2) of the extension portion (311).

[0067] Preferably, as shown in FIG. 6, the width (L1) of the second cutting edge (312) can be formed to be more than half of the inner diameter (D1) of the second hollow portion (232).

[0068] As this cutting portion (313) is formed, the gingival cutting efficiency by the second cutting blade (312) can be improved, and the first space portion (232a) and the second space portion (232b) of the second hollow portion (232) can be connected to further promote the flow and discharge of the cutting material.

[0069] Meanwhile, the connecting portion (320) is a portion that is connected to the first hollow portion (231) of the body portion (200), and may include an insertion portion (321) that enters the inside of the first hollow portion (231) and a press-fit portion (322) that is connected by press-fitting to the inner surface of the first hollow portion (231).

[0070] For example, the insertion portion (321) may be formed in a frustum shape with an outer diameter that becomes smaller as it goes upward, and may be connected to the upper end of the press-in portion (322) at an angle, and the press-in portion (322) may be formed in a cylindrical shape with a diameter corresponding to the inner diameter of the first hollow portion (231).

[0071] In this way, as the insertion portion (321) is entirely press-fitted onto the inner surface of the first hollow portion (231), the bonding strength of the body portion (200) and the inner cutting portion (300) and the overall durability of the gingival removal device (1000) for implant surgery can be improved.

[0072] The block portion (330) is positioned between the cutting edge portion (310) and the connecting portion (320), and may be formed in the shape of a circular block having a diameter larger than that of the connecting portion (320). The position of the block portion (330) may be fixed by contacting the step portion (233) of the hollow portion (230).

[0073] As illustrated in FIG. 6, according to an example, the diameter (L3) of the block portion (330) may be the same as the width (L2) of the extension portion (311), but may be made to correspond to the inner diameter (D1) of the second hollow portion (232) or have a size that forms a predetermined tolerance with the inner diameter (D1) of the second hollow portion (232).

[0074] Referring to FIG. 7, the lower surface (331) of the block portion (330) can be formed to coincide with the upper edge (222a) of the discharge hole (222).

[0075] That is, since the block portion (330) is formed to fit snugly into the upper portion of the second hollow portion (232) and the lower surface (331) of the block portion (330) is formed to coincide with the upper edge of the discharge hole (222) or protrude downward from the upper edge of the discharge hole (222), the block portion (330) can prevent the cutting material flowing into the second hollow portion (232) from entering the upper portion of the second hollow portion (232) or the first hollow portion (231) and promote discharge to the discharge hole (222).

[0076] In other words, referring to FIGS. 3 and 7, the cutting material introduced into the first space portion (232a) and the second space portion (232b) by the circular first cutting edge (221) and the second cutting edge (312) is configured to be blocked from further entry by the block portion (330) and immediately discharged through the first discharge hole connected to the first space portion (232a) and the second discharge hole connected to the second space portion (232b).

[0077] At this time, since the cutting edge portion (310) is formed to cross the center of the second hollow portion (232), the cutting material can be discharged evenly to both sides without being discharged biased toward either the first discharge hole or the second discharge hole.

[0078] In this way, the gum removal device (1000) for implant surgery of the present invention can improve user convenience by including a structure that can efficiently cut the gum at the implant placement site through an internal cutting portion and smoothly discharge the cutting material.

[0079] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0080] The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

[0081] Description of the symbol

[0082] 1000 Gingival Removal Device for Implant Surgery

[0083] 100 bags

[0084] 110 mounting part

[0085] 120 pillars

[0086] 200 body part

[0087] 210 cylinder

[0088] 220 External cutting section

[0089] 221 First cutting edge

[0090] 222 exhaust hole

[0091] 222a top border

[0092] 230 Division

[0093] 230a 1st space section

[0094] 230b Second Space Section

[0095] 231st Division 1

[0096] 232 Second Princess

[0097] 233 single-jaw section

[0098] 300 internal cutting section

[0099] 310 cutting edge

[0100] 311 extension

[0101] 312 Second cutting edge

[0102] 313 cutting section

[0103] 320 joint

[0104] 321 Insert

[0105] 322 press-fit section

[0106] Block 330

[0107] Lower surface of block 331

Claims

1. A shaft portion having a mounting portion formed on the upper portion to be coupled to a tool for rotation; A body part connected to the lower side of the above-mentioned shaft part and having a hollow part formed therein and open downward, and having an external cutting part having a first circular cutting edge formed thereon for separating the gingiva at the implant placement site from the surrounding gingiva along the lower edge; and A gingival removal device for implant surgery, comprising an internal cutting part coupled to the inner hollow part of the above body part and having a second cutting edge formed at the bottom for removing gingiva at the implant placement location.

2. In paragraph 1, A gingival removal device for implant surgery, characterized in that one or more discharge holes for discharge of removed gingiva are formed on the side of the body portion.

3. In paragraph 2, A gingival removal device for implant surgery, characterized in that the at least one discharge hole has a square shape and includes a first discharge hole and a second discharge hole that face each other.

4. In paragraph 3, The hollow part of the above body part is, First hollow part on the upper side; A second hollow portion connected downward from the first hollow portion and having an inner diameter larger than that of the first hollow portion; and Including a step portion connecting the first hollow portion and the second hollow portion, The above internal cutting part is, A joint part that is press-fitted and joined to the inner surface of the first hollow part; A block portion connected downward from the above-mentioned joint portion, having an outer diameter larger than the above-mentioned joint portion, and positioned and fixed to the step portion; and A gingival removal device for implant surgery, characterized in that it includes a cutting blade portion having a plate-shaped extension portion connected downward from the block portion and a second cutting blade connected downward from the extension portion.

5. In paragraph 4, A gingival removal device for implant surgery, characterized in that the second hollow portion is divided into a first space portion and a second space portion by the cutting edge portion crossing the center of the second hollow portion, the first space portion is communicated with the first discharge hole, and the second space portion is communicated with the second discharge hole.

6. In paragraph 4, A gingival removal device for implant surgery, characterized in that the lower surface of the block portion is aligned with the upper edge of the discharge hole or protrudes downward from the upper edge of the discharge hole.

7. In paragraph 4, The above cutting edge part, A gingival removal device for implant surgery, characterized in that it further includes a cutting portion extending upwardly in an inclined manner from the second cutting edge in a straight line across the center of the second hollow portion.

8. In paragraph 7, A gum removal device for implant surgery, characterized in that the width (L1) of the second cutting edge is more than half the inner diameter (D1) of the second hollow portion.

9. In paragraph 4, A gum removal device for implant surgery, characterized in that the diameter (L3) of the block portion is the same as the width (L2) of the extension portion, but is formed to a size corresponding to the inner diameter (D1) of the second hollow portion or having a predetermined tolerance with the inner diameter (D1) of the second hollow portion.

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