201235015 /pif 六、發明說明： 【相關申請案之交叉參考】 本申印案主張韓國專利申請號第1〇 2〇11〇〇14_號 之優先權及權益，其於2()11年2月17日提出申請，在此 以引用方式併人本文，其效果如同在此完整重述一般。 【發明所屬之技術領域】 本發明是有關於-種在病人口腔喊用的牙科手術 用牙鑽’且制是有關於-種牙科手姻牙鑽，其能夠於 上頜竇手術時’在不傷害上頜竇内之皮膜的情況下，快速 而安全地於上頜竇上鑽洞。 【先前技術】 ^體的頭骨内有一處空的空間，例如上頜竇、額竇、 蝶竇等，其用途為減少頭骨的重量、使聲音共鳴等。進一 步來說，皮膜存在於此空間以及頭骨之間。皮膜的存在， 在接近上頜竇以進行植入手術時，導致執行手術上的困難。 ^植入手術的問題發生於在上頜竇的空間内形成植入 月頭用的孔洞時。也就是說，當牙鑽的刀片觸碰到皮膜時， 或在上頜竇鑽洞時，操作者在牙鑽旋轉執行手術時突然施 加過多的力量，上頜竇内的皮膜可能輕易地被撕裂。當皮 祺被撕裂，可能造成例如上頜竇感染等問題。因此，操作 時都需要精確地執行他/她的手術以儘可能地不撕裂 在口腔内以旋轉牙鑽的方式執行鑽孔工作的過程期 ^操作者主要透過其指尖的感覺來決定上頜竇所要鑽的 4 201235015 41537pif 1。手*疋在參考顯示上頜f厚度的χ光或電腦斷居 (computed tomography，CT)，確認鑽洞的深度後進/， 但上頜竇内的骨頭呈現出不同形狀，如平面狀、凹狀 膜狀等。因此，由於上頜竇_部形狀有各種不同的形狀⑺ 皮膜可能睛觀孔，因而錢操作者在進行手術 擔。 貝 為了減輕操作者的負擔，相關技術使用如下的方法： 使牙鑽的末絲面（end smfaee)缝、低賴作牙鑽或 手動模式（hand mode)以降低切割力^、將細微顆粒的鑽 石妙礫附著在工具上以雜（gnawing)骨頭等，如此，即 使旋轉中牙躺刀片碰财麟，也不至於撕裂皮膜。 然而，相關技術使牙鑽的刀片鈍化或以低速進行鑽孔 工作以避免撕裂皮膜，也因此使祕功要花更長的時間 進行。 —進一步來說，切割骨碎片的排除切割可能無法順利進 行，欲切㈣雜的—個雜可因域骨頭部份的摩擦 熱而突然:變熱，或者皮膜可因為操作者過度的力量而被^ 孔。 【發明内容】 本發明的目的在於增進植入手術後的臨床成功率，同 時透過能防，上頜竇皮膜受損料_提供安全且便利的 植入手術’藉由快速而安全地去除上頜竇皮膜，即使牙鑽 直接觸碰到上頜f賴也能防止上頜寶皮膜受損，同時如 一般牙鑽在使用側面接近法（其為上頜f植入手術方法） 201235015 41537pif 時’此維持牙鑽對皮質骨（cortical bone)及海綿質骨鑽洞 或挖通（ream)的固有功能。 根據本發明的一個例示性實施例，提供牙科手術用牙 鑽，其包括連接部份，形成於主體的頂端，以和驅動裝置 連接；以及切割部份，形成於主體的底端，且具有鑽孔用 之切割刀片，其中切割部份包括多個切割刀片，呈圓形安 置以具有中空圓柱狀，藉以拾取骨圓盤（bone disk)，且 切割刀>1的末端形成有圓弧末端曲線表面，使得在鑽孔工 作時’即使_部份料部末翻目邊緣直接觸碰到皮 膜’也能避免皮膜受損。 ng portion )可有至少〆 各切割刀片的後緣部份（traili 傾斜表面。 向朝::=片有之前末 碎片口袋部份形成於所述切割刀片之間 述骨碎片’且便於排除欲切割之骨碎片。 ，用以儲存所 切割部份的關陳面具有形成於_中 具有朝向其底部誠㈣直彳f，末^ 定不變的内直徑，以便從中* 端漸增或固 f 。 份齡產生的 刀片的邊緣部份鋒利。 加的直徑，可形成於具有相 對較大的直徑的切割部份之 可磨製切割刀片以使切自】 直徑擴大部份具有逐漸増 對較小的直徑的主體與具有相 間。 6 201235015 41537pif 切割部份及主體之間可 及自階梯部分的底端更向外突突出的階梯部份’以 牙科手術用牙鑽可進止部份。 固定插入於階梯部份。7匕括制動H (stopper)，其 制動器可包括妗人邱a 直徑的内周圍直徑；二二c階梯部份之外周圍 份’具有小於階梯部份之外周圍:i^tingPreVentl〇n)部 結合部份可由垂直延』的内周圍直徑。 部份之底部具有突出部卜 /。彳部份分為多段，且階梯 與所述突出部份相符的二部^合内周圍末端具有 的結合狀態更確實地穩固。 使…σ。卩份與階梯部份 切割部份可形成具有至少— =空部份内的骨圓盤或骨碎二：：：; ^器加工傾斜表面而產生的傾斜表面之側線 線表面間形成的角度可小於或等於9〇。，且大於或 可形成末端曲絲面以使㈣㈣ 邊緣呈圓弧狀’且末端曲線表面外部周圍侧之角的Κι 秘（麵d mdms)大於或等於其内周圍側之角的曲率半獲。 梯級可形成於傾斜表面與末端曲線表面之間。 根據本發明的另-個例示性實施例，提供牙科手術用 牙鑽，包括連接部份以及切割部份，連接部份形成於主體 之頂端上’以和驅動裝置連接，切割部份形成於主體的底 201235015 /pif 部末端，且具有觀用之蝴刀片， 個切割刀片以及碎片口袋部份，多個; 間，並以切割骨二二:袋部份形成於切割刀片之 斜表面以及前緣部份，、傾钭=匕片包括至少-個傾 份沿前緣方向朝所述後緣部份’前緣部 份環=1牙鑽可進-步包括制動器，其經插入以部 本，明書包括隨附圖式以提了 施例的-部份，且與朗書、本個繪示實 【實施方式】 併做為解釋本發明原理之用途。 以下’將參照隨附圖式 性實施例的牙科手㈣=。朗根據本發明之一個例示 例，牙^手術’根據本發明的—個例示性實施 連接部份20形成於二括連接部份20以及切割部份30， 圖1所見之頂端4為圓柱型的主體1G的末端上（即 驅動設備等)連接以切H動裝置(如手旋盤(hand driver)、 上（卽：ΐΐϊ割部份3〇形成於主體1〇的另-端 之底端），並具有鑽孔用切割刀片。 結構。通' 為中空圓柱狀，具有中心帶有骨圓盤的 的洞時使用。"可於手術完成後，制合於骨頭中形成 圖2所不’切割部份3g有多個切割刀片，且多個 201235015 4ni'/pif u刀^ M C® 2中呈現為8個切割刀片）呈圓形配置。 切。彳。卩伤30的末端，即切割刀片31的末端曲線表面 32經過機器磨圓。如圖j所示，切割部份3〇的外端（― outer及内周圍邊緣呈圓弧狀，因此即使牙鑽的切割刀片 =直接觸蝴上頜竇歧，其也可被安全地去除。也就是 L、上頜竇的内部結構具不規則形狀，關此切割刀片31 二垂直方向接近上頜f皮膜。即使在這樣的情況下， 發明的例不性實施例，切割部份3㈣外端及内周圍 邊緣P弧狀的牙鑽，也能避免上頜竇皮膜受損。 3中左下方所示之切割部份的末端曲線表面 11传 ^曲線表面32的外部周圍側之角的曲率半徑 根大於其内周圍側之角的曲率半徑。然而， 部周圍側之角的㈣林絲面32可具有其外 同的雜。=與其内周圍側之角的曲率半徑相 ( 末端曲線表面的橫截面形狀可為半橢圓 (semi_〇val)形’角被磨圓的圓角形。 二= 八圖3、圖4A以及圖4B所示，每個切割刀片 具體賴，是末端鱗表面32的後緣 供牙鑽綱的力ί鑽旋轉方向為基礎_斜表面，藉此提 i、牙鑽刀。J的力篁。當切割力量 由低速變為高逮。尤1力彻、±刀。J逮度可弹性地 取骨碎片等，且,▲…疋轉時’其較佳地能輕易拾 易，速旋轉時，可縮短手術時間，且因此 知作者了 4地進行手術。圖示顯示每 兩個傾斜表面，d刀片31具有 領斜表面33&以及次傾斜表面33b。 201235015 當母個切割刀片31具有多個傾斜表面時，一部份由切割刀 片所切割的骨碎片，在透過碎片口袋部份34將其卸除時， 可提供給切割部分30末端，藉此在切割刀片間填入骨碎201235015 /pif VI. Invention Description: [Cross-Reference to Related Applications] This application claims the priority and interest of Korean Patent Application No. 1〇2〇11〇〇14_, which is 2 () 11 years 2 The application is filed on the 17th of the month, and is hereby incorporated by reference herein in its entirety herein in its entirety in its entirety herein. [Technical Field] The present invention relates to a dental drill for screaming in a patient's mouth and is related to a dental hand-drill, which can be used to prevent injury during maxillary sinus surgery. In the case of the membrane in the maxillary sinus, a hole is drilled quickly and safely on the maxillary sinus. [Prior Art] There is an empty space in the skull of the body, such as the maxillary sinus, frontal sinus, and sphenoid sinus. The purpose is to reduce the weight of the skull and resonate the sound. Further, the membrane exists between this space and the skull. The presence of the membrane, when approaching the maxillary sinus for implantation surgery, results in operational difficulties. ^ The problem of implant surgery occurs when a hole for implanting the moon is formed in the space of the maxillary sinus. That is to say, when the blade of the dental drill touches the membrane, or when the maxillary sinus is drilled, the operator suddenly exerts excessive force when the dental drill rotates to perform the operation, and the membrane in the maxillary sinus may be easily torn. When the skin is torn, it may cause problems such as maxillary sinus infection. Therefore, in operation, it is necessary to accurately perform his/her surgery to perform the drilling process in a manner of rotating the dental drill in the oral cavity as much as possible. The operator determines the upper jaw mainly through the feeling of his fingertip. The sinus wants to drill 4 201235015 41537pif 1. The hand*疋 refers to the twilight or computed tomography (CT) showing the thickness of the maxillary f, confirming the depth of the drill hole, but the bone in the maxillary sinus has different shapes, such as a flat shape or a concave film shape. Wait. Therefore, since the shape of the maxillary sinus has various shapes (7), the film may look at the hole, so the money operator is performing the surgery. In order to reduce the burden on the operator, the related art uses the following methods: sew the end smfaee of the dental drill, lower the drill or manual mode to reduce the cutting force, and the fine diamonds. The gravel is attached to the tool to gnawing the bones, etc., so that even if the rotating razor blade hits the lining, it does not tear the film. However, the related art allows the blade of the dental drill to be passivated or drilled at a low speed to avoid tearing the film, and thus the secret work takes longer. - Further, the cutting and cutting of the cut bone fragments may not proceed smoothly, and it is necessary to cut (4) the miscellaneous - abruptly due to the frictional heat of the bone portion of the domain suddenly: heat, or the membrane may be excessively forced by the operator ^ Hole. SUMMARY OF THE INVENTION The object of the present invention is to improve the clinical success rate after implantation surgery, and to provide a safe and convenient implantation operation through prevention and prevention of maxillary sinus membrane damage by rapidly and safely removing the maxillary sinus membrane. Even if the dental drill touches the upper jaw directly, it can prevent the maxillary treasure film from being damaged. At the same time, if the general dental drill uses the lateral approach method (which is the maxillary f implant surgery method) 201235015 41537pif, this maintains the drill to the cortex. The inherent function of a cortical bone and a sponge bone hole or ream. According to an exemplary embodiment of the present invention, a dental drill is provided, including a connecting portion formed at a top end of a body to be coupled to a driving device; and a cutting portion formed at a bottom end of the body and having a drill A cutting blade for a hole, wherein the cutting portion comprises a plurality of cutting blades arranged in a circular shape to have a hollow cylindrical shape, thereby picking up a bone disk, and the end of the cutting blade > The surface makes it possible to avoid damage to the film even when the hole is in direct contact with the film at the end of the hole. Ng portion ) may have at least the trailing edge portion of each cutting blade (traili inclined surface. The facing direction::=the piece has a piece of bone debris formed between the cutting blade before the end piece) and is convenient for cutting out The bone fragments for storing the cut portion have an inner diameter formed in the _ with a constant (four) straight 彳 toward the bottom thereof, so as to be gradually increased or fixed from the middle end. The edge portion of the blade produced by the age is sharp. The diameter of the blade can be formed on the cutting portion of the cutting portion having a relatively large diameter so that the enlarged portion has a gradually smaller diameter. The diameter of the main body and the phase. 6 201235015 41537pif between the cutting part and the main body can be extended from the bottom part of the stepped part of the stepped part of the stepped part of the dental drill can be used to enter the part. The step part. 7 includes the brake H (stopper), the brake can include the inner diameter of the diameter of the 邱人邱 a; the outer part of the second and second c steps is smaller than the step portion: i^tingPreVentl 〇n) combination The part can be vertically extended by the inner circumference diameter. The bottom of the part has a protruding part /. The 彳 portion is divided into a plurality of segments, and the bonding state of the inner peripheral ends of the two portions corresponding to the protruding portions is more surely stabilized. Make ... σ. The portion of the cutting portion and the step portion of the step may form a bone disc or a bone fragment having at least - a hollow portion: the angle formed between the surface of the side surface of the inclined surface produced by processing the inclined surface may be Less than or equal to 9 inches. And greater than or may form the end curved surface such that the (4) (four) edge is arcuate and the angle of the outer peripheral side of the end curved surface is greater than or equal to the curvature of the inner peripheral side. The step can be formed between the inclined surface and the end curved surface. According to another exemplary embodiment of the present invention, there is provided a dental drill for use in a dental drill comprising a connecting portion and a cutting portion, the connecting portion being formed on a top end of the main body to be connected to the driving device, and the cutting portion being formed on the main body The bottom of the 201235015 /pif end, and has a butterfly blade, a cutting blade and a fragment pocket part, a plurality of; and a cutting bone 22: the pocket portion is formed on the inclined surface of the cutting blade and the leading edge Part, tilting 匕 = 匕 包括 包括 包括 包括 包括 包括 包括 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 匕 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 至少 , , , The description includes the parts of the accompanying drawings, and is intended to be illustrative of the principles of the invention. The following will refer to the dental hand (four) = with the embodiment of the drawings. According to an example of the present invention, an exemplary embodiment of the connecting portion 20 according to the present invention is formed in a connecting portion 20 and a cutting portion 30. The top end 4 seen in Fig. 1 is cylindrical. The end of the main body 1G (ie, the driving device, etc.) is connected to cut the H moving device (such as a hand driver, the upper part (卽: the cutting part 3〇 is formed at the bottom end of the other end of the main body 1〇), And it has a cutting blade for drilling. Structure. It is used for hollow cylindrical shape with a hole with a bone disc in the center. " can be formed in the bone after the operation is completed, forming a cut in Figure 2 Some 3g have multiple cutting blades, and multiple 201235015 4ni'/pif u knives ^ MC® 2 are presented as 8 cutting blades) in a circular configuration. cut. Hey. The end of the bruise 30, i.e., the end curved surface 32 of the cutting blade 31, is rounded by a machine. As shown in Fig. j, the outer end of the cut portion 3〇 (the outer and inner peripheral edges are arc-shaped, so even if the cutting blade of the dental drill = direct contact with the maxillary sinus, it can be safely removed. That is, L, the internal structure of the maxillary sinus has an irregular shape, and the cutting blade 31 is perpendicular to the upper jaw f film. Even in such a case, the exemplary embodiment of the invention, the outer portion and the inner periphery of the cutting portion 3 (four) The edge P arc-shaped dental drill can also avoid damage to the maxillary sinus membrane. The end curve surface 11 of the cut portion shown in the lower left of the middle portion of the curved surface of the curve surface 32 has a larger radius of curvature than the inner peripheral side of the curved surface 32. The radius of curvature of the corner of the surrounding side. However, the (four) Liner surface 32 of the angle around the circumference of the portion may have its outer same impurity. = the radius of curvature of the angle with the inner peripheral side (the cross-sectional shape of the end curved surface may be Semi-ellipse (semi_〇val) shaped 'corner rounded rounded corners. II=8, Fig. 4A and Fig. 4B, each cutting blade specifically depends on the trailing edge of the end scale surface 32 for the dental drill The force of the drill is based on the direction of rotation _ oblique surface, thereby I, the dental drill. J's force. When the cutting force changes from low speed to high. Especially 1 force, ± knife. J arrest can elastically take bone fragments, etc., and ▲... Preferably, the operation can be easily picked up, and the operation time can be shortened when the rotation is fast, and therefore the author has performed the surgery. The figure shows that each of the two inclined surfaces, the d-blade 31 has a collar inclined surface 33 & and a secondary inclined surface 33b. 201235015 When the female cutting blade 31 has a plurality of inclined surfaces, a portion of the bone fragments cut by the cutting blade can be supplied to the end of the cutting portion 30 when the cutting debris is removed through the debris pocket portion 34. Filling the bone between the cutting blades
片31末端彎 因此，前緣部份35之末端部份 ook shaoe ) 〇 此外，參考圖4A及圖4B，根據本發明的例示性實施 例，牙科手術用的牙鑽中，切割刀片31的主傾斜表面33a 是從末端曲線表面32傾斜。如圖所示，梯級（step)形成 於主傾斜表面33a及接在主傾斜表面33續的末端曲線表 面32間（即末端表面32位於主傾斜表面33&的後緣方 向）。當梯級增加，易於切魏行，藉此改善切割效率。 然而’當切#j刀片觸碰到賴時，歧受漏風險也隨之The end portion of the sheet 31 is bent so that the end portion of the leading edge portion 35 is ook shaoe). Further, referring to FIGS. 4A and 4B, in the dental drill for dental surgery, the main portion of the cutting blade 31 is used according to an exemplary embodiment of the present invention. The inclined surface 33a is inclined from the end curved surface 32. As shown, a step is formed between the main inclined surface 33a and the end curved surface 32 continued from the main inclined surface 33 (i.e., the end surface 32 is located in the trailing edge direction of the main inclined surface 33 & When the steps are increased, it is easy to cut the line, thereby improving the cutting efficiency. However, when the cut #j blade touches Lai, the risk of leakage is also followed.
的末端部 ’因此， 實施例’前緣部份35的末端部 且具有大約平滑的鉤狀 201235015 415i/pif 相較於前緣部份35的末端呈直線或沿著與前緣方向相反 的方向（即後緣方向）彎曲的情況，可顯著改善切割力量。 參照圖4B，其放大顯示切割部分的主要部份，可得 知藉由在主傾斜表面33a及次傾斜表面33b上進行機器切 割而產生的側線（sideline) 33c大約沿垂直方向延伸，而 末端曲線表面32大約沿水平方向延伸。因此，末端曲線表 面U及侧、線33c之間的角度A大約為9〇。。根據本發明的 例示性實施例，在形成主傾斜表面33a以及次傾斜表面现 時，形成向前緣部份35之末端部份35a傾斜的側線33c， 前緣部份35的切割力量。藉由此結構，形成於末端 曲線表面32以及側線33c之間的角度A，可形成為小於 。角度A可小於或等於9〇。，或可大於或等於i。。同 二末:i二可形成為小於或等於9〇。’且大於或等於形成 声面32和前緣部份35之末端部份故間的角 f本發明的例示性實施例，形成於末端曲線表面32 的之切線 可據本發明的例示性實施例，末端曲線表面32 方方向延伸，且由圖4Β中看來，可形成為向右上 存骨碎片，31之間形成碎片口袋部份34，以儲 形成於欲切割之骨碎片。碎片口袋部们4 表面間的側邊，且形成於切割部份3〇的末端 就疋說，—切割刀片31的末端曲線表面32相 201235015 3 j /pif 鄰於另=割刀片 如圖2及圖5中所干山 30之内。切割部份之内 空部份地形成於切割部份 圖5所見之上方部份）^ ® 部處（即 (即圖5所見之下方部H位減少，且在朝向其末端處 由切割工作所產生之骨；$半徑增加。因此，可得到 效果，且可易於執行骨碎片 被2到中空部份3〇a之外側的 周圍表面36可具有固月定内片的分離。或者’切割部份的内 面在底料末端周圍表 可有固定外直徑。 少成傾斜表面，或 同時，切割部份30可至 rp除所移除的_或可能插入= 進一步來說，根據本發明的例示 ，於切割部份30的表面上後，切 != ，外磨製切割刀片使其料卜在本發明的 製的部份為切割刀片末端之圓弧狀末端= 2此改善切割表現。當切割力量改善，切割速度可彈 速變為高速。尤其在低速旋轉時，其較佳地能輕 ^取骨碎片等’且在高速旋轉時，可縮短手術時間，且 因此操作者可容易地進行手術。 在本說明書中’為切割刀片進行機器磨製（抛光）， 且 也就是說’主要切割刀片及次要切割刀片可在用以形成牙 鑽的切割刀片之機械切割磨製後，額外進行機器磨製，__ 12 201235015 4l537pif ¥僅藉由機器磨製形成切割刀片時， 執行磨製。 進仃機器磨製以便 2製整體末端曲線表面32,且 同時’形成於切割刀片間的碎片 ：°圍側。 割骨碎片填充。隨著骨碎片填充於切割刀my被切 寶皮膜’也能防止其受損。因片觸 使切割刀片鋒利，_也能防止皮膜受損。切割刀片， 根據本發明之例示性實施例的牙科 直徑擴大部份Η，#有 用牙鑽，形成 相對較小直㈣域;)徑’抑彡成於具有 之間，如此牙鑽可保持適當的力量。 此外，Ρ皆梯部份13向外突出，而停止部 =階梯:份13的底端向外突出，階梯部份13與= 。刀5兩者可形成於_部份％及紐擴大部份^ P:梯^圖二所示，制動器4G可固錢人於階梯部份13。 U可具有適合制動器4Q的大小，且停止部份μ 3〇的底m於其巾。階梯部份13形成於切割部份 之上，而停止部份15形成於直徑擴大部份u。 可提供多個具有不同高度的制動器40’而操作者可使 =具有適當大小的制動器40，根據牙鑽所欲形成之洞的深 又，選擇性地插入階梯部份13。鑽孔的深度可受制動器4〇 的限制’操作者可更容易地執行手術。此外，即使在使用 牙鑽時發生例如牙鑽在骨頭表面上滑動的意外，制動器可 13 201235015 /pif 避免牙齦受傷。 參照圖7，制叙恐μ 括結合部份41叫防卩份關繞_部份3G，且包 圍直徑大約等於或大於^部份45，結合部份41的内周 止接合部份45的^=卩份13外卵直㈣尺寸，防 F。 °圍直授小於階梯部分13之外周圍直 割部份42 m/ 結合部份41可獅直延伸的切 ii产（二二段。由切割部份分割及形成之結合部份， ^度（或者切割部份的寬度）可為固定或可為不固定。 it夕切縣42可以相等距離形成或可以不相等距離形 成。 為使結合部份41與階梯部分13的結合狀態更穩固， 凸出f突出部份14形成於階梯部份13之底部的表面上， 也就是說，階梯部份的停止部份15 Μ及結合部份Μ的内 周圍末可裝與突出部份14相符的凹狀部份43。 此外’如上所述’為避免操作者誤把制動器40反向 、、’σ 〇防止接合部份45的内周圍直徑小於階梯部份13的 =周圍直徑，如此便不可能將制動器40反向地插入階梯部 伤内。因此，便可能事先預防在誤將制動器4〇反向與階梯 部份13結合的情況下，在使用時制動器4〇掉入病人口腔 内的意外。 制動器40的末端表面形成有多個溝槽，且其末端表 面可用機器處理以使其不平滑。使用牙科手術用牙鑽時， 插入階梯部份130的制動器40與階梯部分13 一起旋轉， 201235015 41537pif 但如果制動器40在切割的過程中碰到骨頭表面，制動器的 旋轉可停止。可了解，操作者可透過他/她本身的眼睛確認 制動器的停止，以及確認切割部份30到達預定深度。、 如前所述，本發明的例示性實施例可提供牙科手術用 牙鑽’其透過快速而安全地去除上頜竇皮膜，故即使在牙 鑽直接觸碰到上頜竇皮膜時，也能夠防止上頜竇皮膜受 損，同時維持如一般牙鑽在使用侧面接近法（其為上頜竇 植入手術方法）時，對皮質骨（corticalb〇ne)盥 鑽洞及挖通的固有功能。 進一步來說，根據本發明之例示性實施例的牙科手術 用牙鑽，透過具有牙鑽前端可形成骨圓盤的結構，可易於 分離骨頭。 、 此外，根據本發明之例示性實施例的牙科手術用牙 鑽，骨碎片可易於填充在形成於牙鑽前端上的刀片之間， 因而，即使在牙鑽的刀片直接觸碰到上頜竇皮膜時，也能 安全地去除上頜竇皮膜。 並且，本發明的例示性實施例可藉由在上頜竇手術 時’、更快速地靠近上頜竇皮膜，而能安全地將其去除，藉 此減少手術部份，抑制手術後浮腫的發生，且減少骨頭植 入材料的使用。 如上所述，雖然參照繪示圖式描述了根據本發明之例 示性貫施例的牙科手術用牙鑽，本發明不受前述例示性實 施例及圖式的限制，因此，本發明所屬領域_具有通常知 識者’在申請專利範圍之範疇内可做不同的修改及變化。 15 201235015 41^3/pif 【圖式簡單說明】 個例示性實施例的牙料手術用 圖1為依照本發明之一 牙鑽之前視圖。 圖2為依照本發明之一個例示性實施例的牙科手術用 牙鑽之切割部份平面視圖。 圖3疋依照本發明之一個例示性實施例的牙科手術用 牙鑽之切割部份透視圖。 圖4A是依照本發明之例示性實施例的牙科手術用牙 鑽之切割部份前視圖。 圖4B是依照本發明之例示性實施例的牙科手術用牙 鑽之切割部份的主要部份放大圖。 圖5是依照本發明之例示性實施例的牙科手術用牙鐵 之橫截面圖。 圖6是依照本發明之例示性實施例，裝有制 科手術用牙鑽之前視圖。 σ 圖7是依照本發明之例示性實施例的牙科手術用牙鑽 之制動Is的橫截面圖。 【主要元件符號說明】 10 :主體 11 :直徑擴大部份 13 :階梯部份 14 :突出部份 15 :停止部份 20 :連接部份 201235015 41537pif 30 :切割部份 30a :中空部份 31 :切割刀片 32 :末端曲線表面 33a :主傾斜表面 33b :次傾斜表面 33c :側線 34 :碎片口袋部份 35 :前緣部份 35a :末端部份 36 :内周圍表面 37 :開口部份 40 :制動器 41 :結合部份 42 :切割部份 43 :凹狀部份 45 :防止接合部份The end portion of the embodiment 'the leading edge portion 35 has an approximately smooth hook shape 201235015 415i/pif which is straight or opposite to the leading edge portion 35 in the opposite direction to the leading edge portion 35. The bending condition (ie, the trailing edge direction) can significantly improve the cutting force. Referring to Fig. 4B, which shows an enlarged main portion of the cut portion, it can be seen that the side line 33c which is produced by machine cutting on the main inclined surface 33a and the second inclined surface 33b extends approximately in the vertical direction, and the end curve Surface 32 extends approximately horizontally. Therefore, the angle A between the end curve surface U and the side and line 33c is about 9 〇. . According to an exemplary embodiment of the present invention, at the time of forming the main inclined surface 33a and the sub-inclined surface, the side line 33c of the front end portion 35a of the front edge portion 35 is formed, and the cutting force of the leading edge portion 35 is formed. With this configuration, the angle A formed between the end curved surface 32 and the side line 33c can be formed to be smaller than . Angle A can be less than or equal to 9 〇. , or may be greater than or equal to i. . The same end: i can be formed to be less than or equal to 9 〇. 'and greater than or equal to the angle f between the end portions of the acoustic surface 32 and the leading edge portion 35. In an exemplary embodiment of the present invention, the tangent formed on the end curved surface 32 may be in accordance with an exemplary embodiment of the present invention. The end curve surface extends in the direction of 32, and as seen in FIG. 4A, it can be formed as a right upper bone fragment, and a debris pocket portion 34 is formed between 31 to be stored in the bone fragments to be cut. The side between the surface of the chip pockets 4, and formed at the end of the cutting portion 3〇, that is, the end curve surface 32 of the cutting blade 31 is 201235015 3 j /pif adjacent to the other cutting blade as shown in Fig. 2 Within the dry mountain 30 of Figure 5. The inner portion of the cut portion is partially formed in the upper portion of the cut portion as seen in Fig. 5) (ie, the lower portion of the H-position as seen in Fig. 5 is reduced, and the cutting work is performed toward the end thereof. The resulting bone; the radius is increased. Therefore, the effect can be obtained, and the peripheral surface 36 of the outer side of the hollow portion 3〇a can be easily performed, and the separation of the solid inner sheet can be obtained. The inner surface may have a fixed outer diameter around the end of the primer. The inclined surface may be reduced, or at the same time, the cutting portion 30 may be removed to the rp or may be inserted. Further, according to the illustration of the present invention, After cutting the surface of the portion 30, cut! =, the outer grinding of the cutting blade to make the material in the portion of the invention is the arcuate end of the cutting blade end = 2 this improves the cutting performance. When the cutting force is improved The cutting speed can be changed to a high speed at a high speed. Especially at a low speed rotation, it is preferable to be able to take bone fragments and the like, and when rotating at a high speed, the operation time can be shortened, and thus the operator can easily perform the surgery. In this manual 'for cutting knives Machine grinding (polishing), and that is, 'the main cutting blade and the secondary cutting blade can be machined and ground after the mechanical cutting of the cutting blade used to form the dental drill, __ 12 201235015 4l537pif ¥only When the cutting blade is formed by machine grinding, grinding is performed. The machine is ground to make the entire end curved surface 32, and at the same time 'fragment formed between the cutting blades: the circumference side. The bone fragments are filled. The filling of the bone fragments with the cutting blade my is also prevented from being damaged. The cutting blade is sharpened by the sheet contact, and the film is also prevented from being damaged. The cutting blade, the dental diameter is expanded according to an exemplary embodiment of the present invention. Part of the Η, #用牙钻, forming a relatively small straight (four) domain;) the diameter 'suppressed between the two, so that the drill can maintain the proper strength. In addition, the stile part 13 protrudes outward, and Stop part = step: the bottom end of the part 13 protrudes outward, the step part 13 and the = step 5. Both of the knife 5 can be formed in the _ part % and the enlarged part of the button ^ P: ladder ^ Figure 2, the brake 4G can Solid money in the ladder part 13. U can have It is suitable for the size of the brake 4Q, and the bottom portion of the stop portion μ 3 is in the towel. The step portion 13 is formed on the cut portion, and the stop portion 15 is formed on the enlarged diameter portion u. The brakes 40' of different heights and the operator can make the brake 40 of an appropriate size, selectively inserted into the stepped portion 13 according to the depth of the hole to be formed by the drill. The depth of the borehole can be affected by the brake Limiting 'Operator can perform the operation more easily. In addition, even if an accident such as a squeegee slides on the surface of the bone occurs when using a dental drill, the brake can avoid the gum injury by referring to Figure 7. The joint portion 41 is called the tamper-proof portion _ part 3G, and the surrounding diameter is approximately equal to or larger than the portion 45, and the inner circumference of the joint portion 41 is closed to the joint portion 45. , anti-F. °The circumference is directly less than the stepped portion 13 and the surrounding straight cut portion 42 m / the joint portion 41 can be extended by the lion's straight cut (two or two sections. The divided portion formed by the cut portion and the formed portion, ^ degrees ( Alternatively, the width of the cut portion may be fixed or may not be fixed. It may be formed at equal distances or may be formed at unequal distances. To make the joint state of the joint portion 41 and the step portion 13 more stable, the protrusion The protruding portion 14 is formed on the surface of the bottom portion of the step portion 13, that is, the stop portion 15 of the step portion and the inner periphery of the joint portion can be fitted with the concave portion corresponding to the protruding portion 14. Part 43. Further, as described above, in order to prevent the operator from mistakenly inverting the brake 40, the 'σ 〇 preventing the inner circumference diameter of the engaging portion 45 from being smaller than the surrounding diameter of the step portion 13 makes it impossible to apply the brake. 40 is inserted into the stepped portion in the reverse direction. Therefore, it is possible to prevent the accident that the brake 4 is dropped into the patient's mouth in use in the case where the brake 4〇 is reversely coupled with the stepped portion 13 in advance. a plurality of grooves formed on the end surface The groove, and its end surface can be machined to make it unsmooth. When the dental drill is used, the brake 40 inserted into the stepped portion 130 rotates together with the stepped portion 13, 201235015 41537pif but if the brake 40 is touched during the cutting process At the bone surface, the rotation of the brake can be stopped. It can be understood that the operator can confirm the stop of the brake through his/her own eyes and confirm that the cutting portion 30 reaches the predetermined depth. As previously described, an exemplary implementation of the present invention For example, dental drills can be provided to remove the maxillary sinus membrane quickly and safely, so that even when the dental drill directly touches the maxillary sinus membrane, the maxillary sinus membrane can be prevented from being damaged, while maintaining the dental drill as usual. When the lateral approach method (which is a maxillary sinus implantation method) is used, the inherent function of the cortical bone and the hole is drilled. Further, the dental surgery according to an exemplary embodiment of the present invention The dental drill can easily separate the bone through a structure having a bone disc at the front end of the dental drill. Further, according to an illustration of the present invention In the dental drill of the embodiment, the bone fragments can be easily filled between the blades formed on the front end of the dental drill, thereby safely removing the maxillary sinus even when the blade of the dental drill directly contacts the maxillary sinus membrane. Moreover, the exemplary embodiment of the present invention can be safely removed by maximally approaching the maxillary sinus membrane during maxillary sinus surgery, thereby reducing the surgical portion and inhibiting the occurrence of post-operative edema. And reducing the use of the bone implant material. As described above, although the dental drill according to an exemplary embodiment of the present invention has been described with reference to the drawings, the present invention is not limited to the foregoing exemplary embodiments and drawings. The scope of the invention is therefore subject to various modifications and changes within the scope of the patent application. 15 201235015 41^3/pif [Simultaneous Description of the Drawings] Dental Operation of an Exemplary Embodiment FIG. 1 is a front view of a dental drill according to the present invention. 2 is a plan view showing a cut portion of a dental drill for use in accordance with an exemplary embodiment of the present invention. Figure 3 is a perspective view of a cut portion of a dental drill for use in accordance with an exemplary embodiment of the present invention. 4A is a front elevational view of a cut portion of a dental drill for use in accordance with an exemplary embodiment of the present invention. Fig. 4B is an enlarged view of a main portion of a cut portion of a dental surgical drill according to an exemplary embodiment of the present invention. Figure 5 is a cross-sectional view of dental iron for dental surgery in accordance with an exemplary embodiment of the present invention. Figure 6 is a front elevational view of a dental drill with a surgical procedure in accordance with an exemplary embodiment of the present invention. σ Figure 7 is a cross-sectional view of a brake Is of a dental drill for use in accordance with an exemplary embodiment of the present invention. [Main component symbol description] 10: Main body 11: Diameter enlarged portion 13: Stepped portion 14: Projection portion 15: Stop portion 20: Connection portion 201235015 41537pif 30: Cutting portion 30a: Hollow portion 31: Cutting Blade 32: end curved surface 33a: main inclined surface 33b: secondary inclined surface 33c: side line 34: chip pocket portion 35: leading edge portion 35a: end portion 36: inner peripheral surface 37: opening portion 40: stopper 41 : Bonding portion 42: Cutting portion 43: concave portion 45: preventing joint portion