M414945 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種人工椎間盤’尤指一種解剖型人工頸椎 椎間盤。 【先前技術】 近年來’臨床上治療頸椎椎間盤退化性疾病①egenerative Disc Disease)常植入人工頸椎椎間盤用以重建退化之椎間盤功 能性。而臨床上常見之人工頸椎椎間盤植入物之金屬板常為平 板具三角錐狀或山脊狀之卡合齒設計，而植入此類椎間盤時， 為使人工植入物能與椎骨更緊密貼合，常以器械或手工具修 整、挖除或磨平些許自然椎骨骨組織以使其椎骨表面外型與人 工植入物之金屬板外型吻合，以增強人工頸椎椎間盤之金屬板 與椎骨間之穩固能力。 是以，由上可知，修整椎骨表面除延長手術時間之外亦 可能因人為修整、切除椎體表面外型，導致硬質骨層破壞或變 薄’受力後恐有植人物下沉之疑慮。顏具林便與問題所 在’而可待加以改善。 緣疋本創作人有感於上述缺失之可改善潛心、研究並配 合學理之獅’終於提出—餘計合理且可有效改善上述問題 之本創作。 【新型内容】 本創作之主要目的在於提供一種減少修整脊椎椎骨外型 所需切除自然骨數量之人工頸椎椎間盤，利用其上板具一與人 體椎骨曲面近似之弧面設計與椎骨間外型貼合，藉此減少破壞 椎骨表面’維持較佳之骨與植入物間界面強度，以減少手術時 間與避免術後發生人工植人物下沉問題。 為達上述目的，本創作的解剖型人工頸椎椎間盤包括：一 上板’其外緣設有二組裝孔’其頂部設有一曲率近似脊椎椎骨 曲面之第一弧面及多個卡合齒，其底部凹設有一第二弧面及一 增加活動角度之第三弧面；—下板，其外緣設有二組裝孔，其 員又有-具5至1G錐度角的長方柱形導槽，其底部設有多 個卡合齒；以及-内墊，其頂部及底部分別設有—第四弧面及 一具5°至ΐ(Τ錐度角的長方柱形軸件分別對應於第二弧面及 長方柱形導槽’其中該内墊設置於上板與下板之間該第四弧 面與該第二狐面的配合作前後方向、左右方向與軸向轉動的滑 動接觸’職方柱雜件與該長方柱料槽的配合，使該内塾 可穩固於該下板之上，另，具有5。至1()。錐度角的長方柱形導 槽與長方_軸件的設計，賴作者方靖_墊與下板之 間。 人其中該第四弧面與該第二弧面之間可呈换形的接觸配 合。該上板的頂部表面及該下板的底部表面可分別塗覆氯氧基 鱗灰石或珠擊處理。 4 M414945 【實施方式】 以下具體實施例僅為本創作最佳實施態樣的例示，非意圖 限制本創作之範圍。所屬領域具有通常知識者可藉由本創作之 揭露’在不背離本創作精神的範圍内做出適度的變更和修正。 請參照第一圖至第五圖’本創作提供一種解剖型人工頸椎 椎間盤，用以治療椎間盤退化疾病，其可重建塌陷椎體之高 度’同時提供退化頸椎區段自然活動能力與運動範圍，如此可 消除脊髓與神經根之壓迫，並且避免傳統脊椎融合術所引起之 鄰近節椎間盤加速退化問題。所述之解剖型人工頸椎椎間盤包 括一上板10、一下板11及一内墊12。 該上板10的外緣設有二組裝孔102，該上板10的頂部設 有一曲率近似脊椎椎骨曲面之第一弧面1〇3及多個卡合齒 101，該上板10的底部凹設有一第二弧面1〇4及一增加活動角 度之第三弧面105。 該下板11的外緣設有二組裝孔112，該下板u的頂部設 有一具5°至10。錐度角的長方柱形導槽113，該下板u的底 部設有多個卡合齒111。 該内塾12的頂部設有一第四弧面mi，該内塾ο的底部 〇又有一具5至1〇。錐度角的長方柱形轴件122〇 在組合時，該内墊12設置於該上板10與該下板u之間， 該第四弧面121與該第二弧面1G4的配合，使該上板1〇在該 内塾12的頂部作前後方向、左右方向以及軸向轉動的滑動接 5 M414945 觸，如第四圖以及第五圖所示。在本實施例中，該第四弧面 121與該第二弧面104之間呈拱形弧面的接觸配合，形成本創 作之解剖型人工頸椎椎間盤的關節面，用以提供整體機構前後 屈曲、左右屈曲以及轴向轉動的活動自由度，同時透過該上板 1〇的底部凹設有一增加活動角度之第三弧面1〇5，用以增加該 上板10前後屈曲以及左右屈曲的活動範圍。而該内墊12與該 - 下板11之間透過一具5。至10。錐度角的長方柱形軸件122與 • 一具5°至10。錐度角的長方柱形導槽113的配合，使該内墊 12可穩固於該下板U之上，於整體機構活動時，該内墊 本體不會產生滑動或轉動，降低内墊12的底面承受多方向滑 移所產生的磨削量，以提昇内墊12本體的壽命，另，其中具 5至10錐度角的長方柱形導槽及長方柱形軸件的設計，使操 作者方便拆卸_ 12與下板U之間’藉以更換不同高度之内 墊12 ’以調整整體機構的高度，使本創作可符合不同脊椎椎 鲁骨間尚度使用。 在植入本創作之解剖型人工頸椎椎間盤時，利用安置本創 作的手術盗械（圖未示），插入並夾持該上板1〇外緣與該下板 11外緣的組裝孔H)2、112，並使該上板1G的頂部與該下板u 的底部與將要植入的椎間盤區域的鄰近脊椎椎骨貼合。在本實 知例中’該上板10的頂部與該下板u的底部透過突出的卡合 齒1〇卜111固定於鄰近脊椎椎骨之間，來達到機械固定的目 的。然而，此實酬料本創作之較佳實麵，所述之上板 6 10的頂部表面以及下板n的底部表面也可以塗覆氫氧基雜 石或珠擊處理。上板10的頂部表面以及下板u的底部表面透 過風氧基魏石或珠擊處理後產生的表面雜凹陷分別貼合 於鄰近脊推椎骨，來達到生物固定的目的。 上述之實施例僅用來舉例本創作之實施態樣，以及闡述本 創作之技術舰’麟时關本創狀健齡。任何熟悉 此技術者可輕易完成之改變或均等性之安排均屬於本創作所 主張之範圍，本創作之權利保護範圍應以申請專利範圍為準。 【圖式簡單說明】 第一圖係本創作之解剖型人工頸椎椎間盤之立體分解圖。 第二圖係本創作之解剖型人工頸椎椎間盤之另—角度之 分解圖。 第二圖係本創作之解剖型人工頸椎椎間盤之立體組合圖。 第四圖係本創作之解剖型人工頸椎椎間盤沿第三圖中Η剖 線之剖視圖。 第五圖係本創作之解剖型人工頸椎椎間盤沿第三圖中h剖 線之剖視圖。 【主要元件符號說明】 上板 10 卡合it 1〇1 M414945 組裝孔 102 第一弧面 103 第二旅面 104 第三弧面 105 下板 11 卡合齒 111 組裝孔 112 長方柱形導槽 113 内墊 12 第四弧面 121 長方柱形軸件 122M414945 V. New description: [New technical field] This creation is related to an artificial intervertebral disc, especially an anatomical artificial cervical intervertebral disc. [Prior Art] In recent years, the clinical treatment of cervical degenerative disc disease has been implanted into artificial cervical discs to reconstruct degenerated intervertebral disc function. The metal plate of the artificial cervical intervertebral disc implant, which is commonly used in clinical practice, is usually designed with a triangular pyramid or a ridge-shaped engaging tooth, and when the intervertebral disc is implanted, the artificial implant can be more closely attached to the vertebra. In addition, the instrument or hand tool is often used to trim, excavate or smooth a little of the natural vertebral bone tissue to match the appearance of the vertebral surface with the appearance of the metal plate of the artificial implant to enhance the metal plate and the vertebrae of the artificial cervical intervertebral disc. Stable ability. Therefore, it can be seen from the above that in addition to prolonging the operation time, the surface of the vertebral surface may be artificially trimmed and the surface of the vertebral body removed, resulting in the destruction or thinning of the hard bone layer. Yan Ai Lin is in trouble with the problem and can be improved. The creator of this creator feels that the above-mentioned lions who can improve their concentration, research and fit with the genius finally come up with the rest of the creations that are reasonable and can effectively improve the above problems. [New content] The main purpose of this creation is to provide an artificial cervical intervertebral disc that reduces the number of natural bones required to repair the external shape of the vertebrae. The upper plate has a curved surface design similar to the surface of the human vertebra and an intervertebral type. In order to reduce the destruction of the surface of the vertebrae, the strength of the interface between the bone and the implant is maintained to reduce the operation time and avoid the problem of artificial planting of the person after surgery. In order to achieve the above object, the anatomical artificial cervical intervertebral disc of the present invention comprises: an upper plate having a second assembly hole on its outer edge, and a first curved surface having a curvature similar to the curved surface of the vertebra and a plurality of engaging teeth at the top thereof. The bottom concave portion is provided with a second curved surface and a third curved surface for increasing the movable angle; the lower plate has a second assembly hole at the outer edge thereof, and the member has a rectangular cylindrical guide groove with a taper angle of 5 to 1G. a plurality of engaging teeth are arranged at the bottom thereof; and an inner pad is provided with a fourth arc surface and a 5° to ΐ (the rectangular columnar shaft member corresponding to the taper angle respectively) a two-arc surface and a rectangular-shaped guide groove, wherein the inner pad is disposed between the upper plate and the lower plate, and the sliding relationship between the front and rear directions, the left-right direction and the axial rotation of the fourth arc surface and the second fox surface 'The fitting of the staff column and the square column trough, so that the inner crucible can be stabilized on the lower plate, and the fifth to 1 (). The rectangular column guide and the long angle of the taper angle The design of the square_axis is based on the relationship between the author and the lower plate. The person can change between the fourth curved surface and the second curved surface. The top surface of the upper plate and the bottom surface of the lower plate may be coated with chloroaluminum titrite or bead blasting respectively. 4 M414945 [Embodiment] The following specific embodiments are only the best embodiment of the present invention. The illustrations are not intended to limit the scope of the present invention. Those of ordinary skill in the art can make appropriate changes and corrections within the scope of this creative spirit by the disclosure of the present invention. Please refer to the first to fifth figures. 'This creation provides an anatomical artificial cervical disc for the treatment of degenerative disc disease, which can reconstruct the height of the collapsed vertebral body' while providing the natural mobility and range of motion of the degenerated cervical segment, thus eliminating the compression of the spinal cord and nerve roots. And avoiding the problem of accelerated degeneration of the adjacent intervertebral disc caused by the traditional spinal fusion surgery. The anatomical artificial cervical intervertebral disc comprises an upper plate 10, a lower plate 11 and an inner pad 12. The outer edge of the upper plate 10 is provided with two assembly. a hole 102, the top of the upper plate 10 is provided with a first curved surface 1〇3 having a curvature similar to the curved surface of the vertebra, and a plurality of engaging teeth 101, the upper plate 10 The bottom surface is concavely provided with a second curved surface 1〇4 and a third curved surface 105 for increasing the movable angle. The outer edge of the lower plate 11 is provided with two assembling holes 112, and the top of the lower plate u is provided with a 5° to 10° a rectangular cylindrical guide groove 113 having a taper angle, a bottom of the lower plate u is provided with a plurality of engaging teeth 111. The top of the inner turn 12 is provided with a fourth curved surface mi, and the bottom portion of the inner bottom 塾The inner pad 12 is disposed between the upper plate 10 and the lower plate u, and the fourth arc surface 121 and the second arc are disposed when the rectangular columnar member 122 of the taper angle is combined. The matching of the surface 1G4 causes the upper plate 1 to be in the front-rear direction, the left-right direction, and the axially-sliding sliding contact 5 M414945 at the top of the inner cymbal 12, as shown in the fourth and fifth figures. The fourth arcuate surface 121 and the second arcuate surface 104 are in an arc-shaped arc-shaped contact fit to form an articular surface of the anatomical artificial cervical intervertebral disc of the present invention for providing front and rear buckling, left and right flexion, and The degree of freedom of movement of the axial rotation is simultaneously provided with a third curved surface 1〇5 which increases the movable angle through the bottom of the upper plate 1〇, To increase the buckling of the upper plate 10 and the left and right front flexion range of activities. And the inner pad 12 and the lower plate 11 pass through a single piece 5. To 10. The rectangular cylindrical member 122 of the taper angle is • 5° to 10°. The engagement of the rectangular cylindrical guide groove 113 of the taper angle enables the inner pad 12 to be stabilized on the lower plate U. When the overall mechanism is active, the inner pad body does not slip or rotate, and the inner pad 12 is lowered. The bottom surface is subjected to the amount of grinding generated by multi-directional sliding to improve the life of the inner pad 12 body. In addition, the rectangular cylindrical guide groove with a 5 to 10 taper angle and the rectangular cylindrical shaft member are designed to operate. It is convenient to disassemble _ 12 between the lower plate U and 'by replacing the inner pad 12' of different heights to adjust the height of the whole mechanism, so that the creation can conform to the use of different vertebrae and bones. When the anatomical artificial cervical intervertebral disc of the present invention is implanted, the surgical thief (not shown) of the present invention is inserted, and the assembly hole H of the outer edge of the upper plate and the outer edge of the lower plate 11 is inserted and clamped. 2, 112, and the top of the upper plate 1G and the bottom of the lower plate u are attached to the adjacent vertebrae of the intervertebral disc region to be implanted. In the present embodiment, the top portion of the upper plate 10 and the bottom portion of the lower plate u are fixed between adjacent vertebrae through the protruding engaging teeth 1 to be mechanically fixed. However, in the preferred embodiment of the present invention, the top surface of the upper plate 6 10 and the bottom surface of the lower plate n may also be coated with a oxyhydrocarbon or bead blasting treatment. The surface of the top surface of the upper plate 10 and the bottom surface of the lower plate u are treated by wind-oxygenite or bead blasting, and the surface dents are respectively attached to the adjacent vertebrae to achieve the purpose of biological fixation. The above embodiments are only used to exemplify the implementation of the present invention, as well as to illustrate the technical ship of the present invention. Any change or equivalence that can be easily accomplished by those skilled in the art is within the scope of this creative claim. The scope of protection of this creation shall be subject to the scope of the patent application. [Simple illustration of the diagram] The first picture is a three-dimensional exploded view of the anatomical artificial cervical disc. The second figure is an exploded view of the other angle of the anatomical artificial cervical disc. The second picture is a three-dimensional combination of the anatomical artificial cervical intervertebral disc of the present creation. The fourth figure is a cross-sectional view of the anatomical artificial cervical intervertebral disc of the present invention along the Η line in the third figure. The fifth figure is a cross-sectional view of the anatomical artificial cervical intervertebral disc of the present invention taken along the line h in the third figure. [Main component symbol description] Upper plate 10 snaps it 1〇1 M414945 Assembly hole 102 First curved surface 103 Second travel surface 104 Third curved surface 105 Lower plate 11 Engagement tooth 111 Assembly hole 112 Rectangular guide groove 113 inner pad 12 fourth arc surface 121 rectangular column shaft member 122