CN1200657C - 具有带齿连接板的椎间内用假体 - Google Patents

具有带齿连接板的椎间内用假体 Download PDF

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CN1200657C
CN1200657C CNB001201492A CN00120149A CN1200657C CN 1200657 C CN1200657 C CN 1200657C CN B001201492 A CNB001201492 A CN B001201492A CN 00120149 A CN00120149 A CN 00120149A CN 1200657 C CN1200657 C CN 1200657C
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tooth
type surface
connecting plate
intervertebral
internal prosthesis
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CN1288713A (zh
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A·克勒
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Waldemar Link GmbH and Co KG
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
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    • A61F2002/30841—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes
    • A61F2002/30845—Sharp anchoring protrusions for impaction into the bone, e.g. sharp pins, spikes with cutting edges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
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    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442—Intervertebral or spinal discs, e.g. resilient
    • A61F2/4425—Intervertebral or spinal discs, e.g. resilient made of articulated components
    • A61F2002/443—Intervertebral or spinal discs, e.g. resilient made of articulated components having two transversal endplates and at least one intermediate component
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
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  • Prostheses (AREA)
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Abstract

一种***物，特别是一种椎间内用假体，其具有一个连接板(3)，它被固定在椎骨表面且沿横切其主延伸部分的作用方向接触骨表面。为了避免产生平行于其主延伸部分的剪切力，连接板(3)的齿(6)沿作用方向伸出。齿(6)由表面(11，12，13)限定组成，其中包括一主表面(11)，沿作用方向且垂直于剪切方向设置，两个齿或多组齿在剪切方向相对并朝相反方向。

Description

具有带齿连接板的椎间内用假体
技术领域
本发明涉及椎间内用假体。
背景技术
已知的椎间内用假体(EP-B-176,728)包括两个连接板，在它们之间包围有一个芯体。这些连接板将对一侧脊椎体的上皮片(plate)施加压力。为了保证假体不会因剪切力的作用失去其在脊椎体之间的预定位置，其中所述剪切力主要产生在与连接板主延展方向平行的前后方向上，该连接板必须以适宜的方式连接至脊椎体。为此，已知假体的边缘设有齿，其横向从每一连接板伸出，以便通过所述椎体之间作用的实际压力穿入脊椎体的上皮片。在这种情况下，它们将阻止连接板在相对于脊椎体上皮片以任何给定连接板和脊椎体表面方向进行位移。为了确保这种阻力足够大，在所述内用假体的特殊设计中，齿横切连接板和上皮片表面的延伸部分设置。实际上，它们通常由一对大致三角形的主表面构成，这些主表面沿其大致平行的底侧被装配至连接板且相对底侧设置的自由顶点朝向远离连接板方向。由于齿需具有足够的稳定性，因此其具有一定的厚度，该厚度对应于相互平行的三角形表面之间的距离。在底侧和顶点之间延伸的三角形表面的边缘由矩形平面连接，所述平面朝齿顶点成收敛状并形成一个脊状。
当使用假体时，将会发现在许多情况下，齿不能足够深地穿入脊椎体的上皮片。这样就存在它们不能正确完成其功能，即假体固定在预定位置上的危险性。实践已证明这必需依靠使用假体栓钉，这些栓钉被***预先在脊椎体上钻好的孔中(DE-C-3,023,353，FR-A-2,659,226)。然而，在脊椎上作这项工作是十分困难的。它将延长手术时间并削弱脊椎体的强度。使用尖锥形齿的情况将被排除，这是由于齿朝底面变厚以便使齿更稳固，且它们是由斜面限定的，如果有剪切力存在，将使齿从骨头上脱离。
发明内容
本发明的目的在于改进所述椎间内用假体，其方式是齿应充分牢固地***脊椎体的上皮片，并且克服剪切力牢固地固定在那里。
即本发明提出一椎间内用假体，其具有一个连接板，该连接板被固定在脊椎表面上且其以作用方向施加在脊椎表面，该作用方向横切于它的主延伸方向，并且为了免受平行于主延伸方向的剪切力，连接板的齿大致沿作用方向伸出，所述齿由表面限定，其中包括一沿作用方向且横切剪切方向设置的主表面，两个齿或多组齿均在剪切方向上彼此相对设置并朝向相反方向，该主表面是垂直于连接板的主延伸方向。
并且彼此相对设置且指向相反方向的齿的主表面被定位成彼此相互离开。所述主表面的边是尖的。在一个平行于连接板的横截面上，齿的侧面相对于主表面包围一不大于80°的角度β。齿的主表面为不规则四边形，主表面为最大的侧面。一组齿在所有情况下均被设置在连接板的两个相对边缘区域内。每组齿的主表面分别与直径方向成一夹角α设置，其夹角α至少为±20°。
因而，所提供的椎间内用假体具有一个被固定的连接板，从而压在脊椎表面上。这一连接板沿横切其主延伸部分的作用方向接触脊椎表面。为了避免平行于其主延伸部分的剪切力，连接板的齿大致朝所述作用方向伸出。这些齿特别由主表面构成，该主表面是沿作用方向及横切剪切方向设置的。与传统的锥形齿轮结构相比，其中确定齿的面以与作用方向成相同的角度倾斜，本发明的角锥形齿相对于作用方向被设计成倾斜的，其是通过使主表面平行于作用方向且仅通过使其它表面倾斜而使齿从顶部朝其底部加宽来实现的。
非常规的髋关节内用假体由法国专利FR2,641,461 A1披露，其固定在髋骨上的半球状部分在外缘上具有一个楔形环，该环朝***方向收敛。楔形体的外表面为圆柱形表面，其圆柱轴线为作用方向。然而，并不能清楚地确定外楔形表面的圆柱外形是否能实现其技术效果。
本发明的进一步的特征在于：在所有情况下，两个齿或多组齿沿剪切方向彼此相对设置且朝向相反方向，其是指两个配套齿对的主表面彼此面对或彼此朝向远离的方向。以下的推论是在基于这样一个事实上作出的，横切作用方向且斜面穿入脊椎骨时产生的力方向相反，因而彼此抵销。因此，齿可以以预期的作用方向，即主表面方向穿入脊椎骨。
本发明的齿外形具有两个优点。第一，当产生的剪切力平行于连接板的主延伸部分时，总是至少存在这样一个齿的主表面，该主表面与剪切力的方向垂直，因此为确保克服剪切力而***的位置提供了最好的条件。从而消除了锥形齿脱离的危险性，即防止了由于沿倾斜齿表面剪切方向的移动而使***脊椎的齿从支承位置上脱离。
第二个优点在于脊椎的表面不受伤害，借助于它在穿透时与齿的主表面相互配合，且它们克服剪切力被支撑。与作用方向倾斜的齿表面具有这样的作用，当它穿入脊椎皮层时，它将使脊椎皮层逐渐断开，以便容纳不断增大的穿入齿的横截面积，这种断裂将削弱相关脊椎部分的稳定性。相反，沿作用方向延展的主齿表面上没有这种逐渐断裂发生。因此，相应的脊椎部分为因此不受伤害，可以更稳定更好地支承齿，上皮片的脊椎皮层的完整性以及其承受力的能力在齿的穿透区域被更好地维护，为此通常能省略附加固定装置，如螺栓等。
特别理想的是，如果主表面的边缘是锐利的，那么当它们穿入椎骨时，它们将切割椎骨而不会使其断开。如果主表面是平面，则主表面边缘的锐度可通过以一锐角(沿平行于连接板的主延伸部分的横截面)设置的与主表面相邻的齿表面来获得。齿的底部通常是这样的，例如是一个三角形或不规则四边形。然而，主表面也不一定非是一个平面，它也可以有两个或多个以理想钝角相互连在一起的平面，或者它也可以被设计成具有或多或少的均匀曲率。
作用方向通常为设法***脊椎骨的方向。如果连接板是平的，则它通常垂直于脊椎皮片的表面。如果连接板是弯曲的，作用方向一般为实际垂直于连接板延伸的平均方向(the average direction)。它也可以是从产品中所示的主表面相互平行延伸的方向。
剪切力通常是一组不规则定向力的分力，克服该剪切力，齿将椎间内用假体固定在脊椎上，在前后方向分力是非常大的并会对***脊椎的固定造成特殊威胁。因此，相对于脊椎骨上皮片的前后方向固定连接板是特别重要的。因此，***连接板上的齿主表面是沿A-P方向和邻接方向取向的。推荐设置两组齿，一组用于承受前后的定向力，另一组用来承受后面的定向力。这两组齿以相反的方向相对设置，这样横切作用方向且当它们***骨骼时，由其斜面产生的力就基本上相互抵销了。
在这种连接中，相对于剪切力横向延伸的对称轴的对称排布或相对于镜象对称中心点的对称排布可以是特别稳定的。然而，对称不是必须的。
下面，将参照附图对实施例进行描述来进一步说明本发明的特征，其中：
附图说明
图1为一横截面视图，它是从后侧或前侧方向进行观察的，在两个脊椎体椎间设置有一椎间内用假体；
图2为连接板带齿侧的平面图；
图3为沿图2中III-III线的横截面视图；
图4，5和6为齿的一个平面放大图和两个放大侧视图。
具体实施方式
插在两个脊椎体2之间的椎间内用假体1包括两个连接板3和一个芯4，连接板3的外侧5具有多个尖齿6，这些齿6由沿箭头7方向作用的力以及可还包括作用在脊椎体2之间的实际压力被压入外皮端片8中，从而确保所述假体处于理想的位置。
齿6在连接板3的腹侧和背侧边缘9被分为两组，且对称于沿腹侧—背侧方向延伸的一径向轴线10。每组的中间齿均相对于直径方向10定位，同时，***的齿以与直径方向成夹角α围绕，该夹角α约为30°且应大于20°。其原因在于齿克服将假体固定在脊椎体上的大致但不仅仅处于A-P方向的剪切力。
每个齿由4个表面，即通常由一主表面11，两个侧表面13和一后表面12限定。主表面11相对连接板3成90°角，更准确地说是相对于大致由连接板3的齿支承外表面的平均方向规定的平面成90°角。在所示的实施例中，垂直于连接板3的主表面11指向外侧(远离直径方向10的中心)。反之，也可以应用。
相对的后表面12的截面平行于连接板，贯穿齿的截面平行于主表面11。在垂直截面(图6所示)，它相对于连接板3倾斜，即在本实施例中以115°角延伸。该角度最好在105°和145°之间。
主表面11和后表面12的边缘14和15由侧表面13相连，这些侧表面同样为三角形，其与主表面11和后表面12汇聚于同一点。相对于主表面11，它们在一平行于连接板3的截面上以一锐角β延伸，其锐角最好小于80°，这样，主表面11和侧表面13之间的边14就成为了一种切割刀。侧表面13相对于主表面11的锐角实际上是通过使主表面11的顶角稍大于后表面12而获得的。在图5中，这些角分别被标示为55°和40°。这两个角之间的差别越大，由边14形成的切割刀就越尖。主表面11的顶角应该小于70°，最好小于60°，同时，后表面的顶角应小了10°-25°，最好小了约15°。
这样具有以下作用：如齿可以穿入脊椎体的骨质的外皮层。主表面11与穿透方向平行，齿的顶点一穿入骨质的外皮层，主表面11便能沿最初形成的剪切或穿透边前进。当穿透过程进行时，相应于主表面11增大的宽度，该边的长度也会增加。由于这种扩大发生在切割边14的作用区域内，因而其具有剪切作用而不是切断作用，因此，最终形成与主表面11配合的骨质边缘基本上避免了断裂的危险，因而可以更好地承受由主表面11传送的力。
相反，后表面12和侧表面穿透是通过骨外皮层的配合边的逐渐位移来实现的。但是，这并没有任何损坏发生，由于克服剪切力的***支承主要是由主表面11承受的。
为了确保在所有主表面方向上力的良好传递，径向彼此相对设置的齿的主表面11以相对的方向定位。
已发现，与现有技术中的齿相对，根据本发明构成的齿能更可靠地保证假体的定位，且在横切A-P方向上能呈现出大致相同的齿面尺寸(图2)。

Claims (7)

1、一椎间内用假体，其具有一个连接板(3)，该连接板(3)被固定在脊椎表面上且其以作用方向施加在脊椎表面，该作用方向横切于它的主延伸方向，并且为了免受平行于主延伸方向的剪切力，连接板(3)的齿大致沿作用方向伸出，所述齿由表面(11，12，13)限定，其中包括一沿作用方向且横切剪切方向设置的主表面(11)，两个齿(6)或多组齿均在剪切方向上彼此相对设置并朝向相反方向，该主表面(11)是垂直于连接板(3)的主延伸方向。
2、根据权利要求1所述的椎间内用假体，其特征在于：彼此相对设置且指向相反方向的齿(6)的主表面(11)被定位成彼此相互离开。
3、根据权利要求1或2所述的椎间内用假体，其特征在于：所述主表面(11)的边(14)是尖的。
4、根据权利要求3所述的椎间内用假体，其特征在于：在一个平行于连接板(3)的横截面上，齿(6)的侧面(13)相对于主表面(11)包围一不大于80°的角度β。
5、根据权利要求4所述的椎间内用假体，其特征在于：齿(6)的主表面为不规则四边形，主表面(11)为最大的侧面。
6、根据权利要求1或2所述的椎间内用假体，其特征在于：一组齿(6)在所有情况下均被设置在连接板(3)的两个相对边缘区域内。
7、根据权利要求5的椎间内用假体，其特征在于：每组齿(6)的主表面(11)分别与直径方向(10)成一夹角α设置，其夹角α至少为±20°。
CNB001201492A 1999-05-21 2000-05-21 具有带齿连接板的椎间内用假体 Expired - Fee Related CN1200657C (zh)

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Families Citing this family (157)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805985B1 (fr) * 2000-03-10 2003-02-07 Eurosurgical Prothese de disque intervertebral
US6673113B2 (en) * 2001-10-18 2004-01-06 Spinecore, Inc. Intervertebral spacer device having arch shaped spring elements
US7235081B2 (en) * 2001-07-16 2007-06-26 Spinecore, Inc. Wedge plate inserter/impactor and related methods for use in implanting an artificial intervertebral disc
US6989032B2 (en) * 2001-07-16 2006-01-24 Spinecore, Inc. Artificial intervertebral disc
US7563285B2 (en) * 2001-07-16 2009-07-21 Spinecore, Inc. Artificial intervertebral disc utilizing a ball joint coupling
US6669730B2 (en) 2001-02-15 2003-12-30 Spinecore, Inc. Intervertebral spacer device utilizing a spirally slotted belleville washer having radially extending grooves
US7169182B2 (en) 2001-07-16 2007-01-30 Spinecore, Inc. Implanting an artificial intervertebral disc
FR2824261B1 (fr) 2001-05-04 2004-05-28 Ldr Medical Prothese de disque intervertebral et procede et outils de mise en place
US6468310B1 (en) * 2001-07-16 2002-10-22 Third Millennium Engineering, Llc Intervertebral spacer device having a wave washer force restoring element
US7722675B2 (en) * 2001-07-16 2010-05-25 Spinecore, Inc. Instruments for reorienting vertebral bones for the treatment of scoliosis
DE60231718D1 (de) * 2001-07-16 2009-05-07 Spinecore Inc Künstliche bandscheibe mit einem kraft wiederherstellenden element in form einer wellenunterlegscheibe
US7160327B2 (en) 2001-07-16 2007-01-09 Spinecore, Inc. Axially compressible artificial intervertebral disc having limited rotation using a captured ball and socket joint with a solid ball and compression locking post
US7118599B2 (en) 2001-07-16 2006-10-10 Spinecore, Inc. Artificial intervertebral disc
US7713302B2 (en) 2001-10-01 2010-05-11 Spinecore, Inc. Intervertebral spacer device utilizing a spirally slotted belleville washer having radially spaced concentric grooves
US7771477B2 (en) * 2001-10-01 2010-08-10 Spinecore, Inc. Intervertebral spacer device utilizing a belleville washer having radially spaced concentric grooves
US7208014B2 (en) * 2001-10-01 2007-04-24 Spinecore, Inc. Intervertebral spacer device utilizing a belleville washer having radially extending grooves
US20090177283A9 (en) * 2001-10-01 2009-07-09 Ralph James D Intervertebral spacer device utilizing a spirally slotted belleville washer and a rotational mounting
US20050149188A1 (en) * 2002-02-07 2005-07-07 Cook Stephen D. Anterior spinal implant
US20030176921A1 (en) * 2002-03-13 2003-09-18 Lawson Kevin Jon Two-part prosthetic nucleus replacement for surgical reconstruction of intervertebral discs
US8038713B2 (en) 2002-04-23 2011-10-18 Spinecore, Inc. Two-component artificial disc replacements
US20080027548A9 (en) 2002-04-12 2008-01-31 Ferree Bret A Spacerless artificial disc replacements
US20040093082A1 (en) * 2002-04-19 2004-05-13 Ferree Bret A. Mobile-bearing artificial disc replacement
US20040236342A1 (en) * 2002-04-23 2004-11-25 Ferree Bret A. Device to assess ADR motion
US6706068B2 (en) 2002-04-23 2004-03-16 Bret A. Ferree Artificial disc replacements with natural kinematics
US20050261773A1 (en) * 2002-05-15 2005-11-24 Ferree Bret A Lateral-approach artificial disc replacements
US20040010318A1 (en) * 2002-05-15 2004-01-15 Ferree Bret A. Conformable endplates for artificial disc replacement (ADR) devices and other applications
US6793678B2 (en) 2002-06-27 2004-09-21 Depuy Acromed, Inc. Prosthetic intervertebral motion disc having dampening
EP1542626B1 (en) 2002-08-15 2012-09-26 Synthes GmbH Controlled artificial intervertebral disc implant
JP4088495B2 (ja) * 2002-08-20 2008-05-21 昭和医科工業株式会社 椎間ケージ
WO2004026187A1 (en) * 2002-09-19 2004-04-01 Malan De Villiers Intervertebral prosthesis
US20040106998A1 (en) * 2002-10-04 2004-06-03 Ferree Bret A. Multiaxial artificial disc replacements
DE10247762A1 (de) * 2002-10-14 2004-04-22 Waldemar Link (Gmbh & Co.) Zwischenwirbelprothese
FR2846550B1 (fr) 2002-11-05 2006-01-13 Ldr Medical Prothese de disque intervertebral
WO2004054479A1 (de) * 2002-12-17 2004-07-01 Mathys Medizinaltechnik Ag Zwischenwirbelimplantat
US20040148028A1 (en) * 2002-12-19 2004-07-29 Ferree Bret A. Artificial disc replacement (ADR) extraction methods and apparatus
US20040143334A1 (en) * 2003-01-08 2004-07-22 Ferree Bret A. Artificial disc replacements (ADRS) with features to enhance longevity and prevent extrusion
GB0301085D0 (en) * 2003-01-17 2003-02-19 Krishna Manoj Articulating spinal disc prosthesis
US20040186577A1 (en) * 2003-01-29 2004-09-23 Ferree Bret A. In situ artificaial disc replacements and other prosthetic components
WO2004066865A2 (en) 2003-01-31 2004-08-12 Spinalmotion, Inc. Spinal midline indicator
ZA200506026B (en) 2003-01-31 2006-11-29 Spinalmotion Inc Intervertebral prosthesis placement instrument
MXPA05008653A (es) 2003-02-14 2006-04-27 Depuy Spine Inc Dispositivo de fusion intervertebral formado in situ.
US6908484B2 (en) 2003-03-06 2005-06-21 Spinecore, Inc. Cervical disc replacement
US7060097B2 (en) 2003-03-31 2006-06-13 Depuy Spine, Inc. Method and apparatus for implant stability
US7291173B2 (en) 2003-05-06 2007-11-06 Aesculap Ii, Inc. Artificial intervertebral disc
US7105024B2 (en) 2003-05-06 2006-09-12 Aesculap Ii, Inc. Artificial intervertebral disc
US10052211B2 (en) 2003-05-27 2018-08-21 Simplify Medical Pty Ltd. Prosthetic disc for intervertebral insertion
US7575599B2 (en) 2004-07-30 2009-08-18 Spinalmotion, Inc. Intervertebral prosthetic disc with metallic core
ZA200509644B (en) 2003-05-27 2007-03-28 Spinalmotion Inc Prosthetic disc for intervertebral insertion
US20050033338A1 (en) * 2003-06-19 2005-02-10 Ferree Bret A. Surgical instruments particularly suited to severing ligaments and fibrous tissues
US20040267367A1 (en) 2003-06-30 2004-12-30 Depuy Acromed, Inc Intervertebral implant with conformable endplate
US7811329B2 (en) 2003-07-31 2010-10-12 Globus Medical Transforaminal prosthetic spinal disc replacement and methods thereof
US7713304B2 (en) 2003-07-31 2010-05-11 Globus Medical, Inc. Transforaminal prosthetic spinal disc replacement
US7621956B2 (en) * 2003-07-31 2009-11-24 Globus Medical, Inc. Prosthetic spinal disc replacement
US7041137B2 (en) * 2003-10-07 2006-05-09 Lanx, Llc Spinal implant
US7320707B2 (en) * 2003-11-05 2008-01-22 St. Francis Medical Technologies, Inc. Method of laterally inserting an artificial vertebral disk replacement implant with crossbar spacer
US20050187633A1 (en) * 2003-11-10 2005-08-25 Ferree Bret A. Modular artificial disc replacements (ADRS) that allow translocation and axial rotation
ATE508713T1 (de) * 2003-11-18 2011-05-15 Zimmer Gmbh Bandscheibenimplantat
US7691146B2 (en) 2003-11-21 2010-04-06 Kyphon Sarl Method of laterally inserting an artificial vertebral disk replacement implant with curved spacer
US8123757B2 (en) * 2003-12-31 2012-02-28 Depuy Spine, Inc. Inserter instrument and implant clip
PT1711133E (pt) 2004-02-04 2011-06-01 Ldr Medical Prótese de disco intervertebral
FR2865629B1 (fr) 2004-02-04 2007-01-26 Ldr Medical Prothese de disque intervertebral
US7393361B2 (en) * 2004-02-20 2008-07-01 Spinecore, Inc. Artificial intervertebral disc having a bored semispherical bearing with a compression locking post and retaining caps
CA2556486C (en) * 2004-02-20 2010-03-23 Spinecore, Inc. Artificial intervertebral disc having a universal joint
US7083651B2 (en) * 2004-03-03 2006-08-01 Joint Synergy, Llc Spinal implant
US7491239B2 (en) 2005-02-23 2009-02-17 Joint Synergy, Llc Interior insert ball and dual socket joint
US7195644B2 (en) * 2004-03-02 2007-03-27 Joint Synergy, Llc Ball and dual socket joint
US8636802B2 (en) 2004-03-06 2014-01-28 DePuy Synthes Products, LLC Dynamized interspinal implant
FR2869528B1 (fr) 2004-04-28 2007-02-02 Ldr Medical Prothese de disque intervertebral
CA2567833A1 (en) * 2004-05-27 2005-12-15 Depuy Spine, Inc. Tri-joint implant
DE202004009542U1 (de) * 2004-06-16 2004-08-12 Aesculap Ag & Co. Kg Zwischenwirbelimplantat
US9237958B2 (en) * 2004-06-30 2016-01-19 Synergy Disc Replacement Inc. Joint prostheses
US8100974B2 (en) * 2004-06-30 2012-01-24 Synergy Disc Replacement, Inc. Artificial spinal disc
US8172904B2 (en) * 2004-06-30 2012-05-08 Synergy Disc Replacement, Inc. Artificial spinal disc
US20060020342A1 (en) * 2004-07-21 2006-01-26 Ferree Bret A Facet-preserving artificial disc replacements
US20060025778A1 (en) * 2004-07-21 2006-02-02 Ferree Bret A Methods and apparatus for artificial disc replacement (ADR) insertion and other surgical procedures
US7585326B2 (en) 2004-08-06 2009-09-08 Spinalmotion, Inc. Methods and apparatus for intervertebral disc prosthesis insertion
US20060052870A1 (en) * 2004-09-09 2006-03-09 Ferree Bret A Methods and apparatus to prevent movement through artificial disc replacements
US20060085077A1 (en) * 2004-10-18 2006-04-20 Ebi, L.P. Intervertebral implant and associated method
US8721722B2 (en) 2004-10-18 2014-05-13 Ebi, Llc Intervertebral implant and associated method
DE202004019044U1 (de) * 2004-12-09 2005-02-17 Aesculap Ag & Co. Kg Bausatz für ein Zwischenwirbelimplantat und Zwischenwirbelimplantat
FR2879436B1 (fr) 2004-12-22 2007-03-09 Ldr Medical Prothese de disque intervertebral
US20060247778A1 (en) * 2005-01-26 2006-11-02 Ferree Bret A Intradiscal devices including spacers facilitating posterior-lateral and other insertion approaches
US8083797B2 (en) 2005-02-04 2011-12-27 Spinalmotion, Inc. Intervertebral prosthetic disc with shock absorption
US8911498B2 (en) * 2005-02-10 2014-12-16 DePuy Synthes Products, LLC Intervertebral prosthetic disc
US8777959B2 (en) 2005-05-27 2014-07-15 Spinecore, Inc. Intervertebral disc and insertion methods therefor
TWI400066B (zh) * 2005-06-22 2013-07-01 Cervitech Inc 具自攻式固定凸體之椎間假體
EP1736120A1 (de) 2005-06-22 2006-12-27 Cervitech, Inc. Zwischenwirbelprothese mit selbstschneidenden Fixiervorsprüngen
FR2887762B1 (fr) 2005-06-29 2007-10-12 Ldr Medical Soc Par Actions Si Instrumentation d'insertion de prothese de disque intervertebral entre des vertebres
FR2891135B1 (fr) 2005-09-23 2008-09-12 Ldr Medical Sarl Prothese de disque intervertebral
US7927373B2 (en) * 2005-10-31 2011-04-19 Depuy Spine, Inc. Intervertebral disc prosthesis
US8202320B2 (en) * 2005-10-31 2012-06-19 Depuy Spine, Inc. Intervertebral disc prosthesis
KR101360188B1 (ko) * 2005-11-04 2014-02-11 너바시브 인코퍼레이티드 보철물 구성요소의 장착 결함 저감방법
FR2893838B1 (fr) * 2005-11-30 2008-08-08 Ldr Medical Soc Par Actions Si Prothese de disque intervertebral et instrumentation d'insertion de la prothese entre les vertebres
US7867279B2 (en) * 2006-01-23 2011-01-11 Depuy Spine, Inc. Intervertebral disc prosthesis
US7615077B2 (en) * 2006-03-31 2009-11-10 Warsaw Orthopedic, Inc. Intervertebral implants with radial teeth and methods of use
KR20090007418A (ko) 2006-04-12 2009-01-16 스피날모우션, 인코포레이티드 후방 척추 장치 및 방법
US7780676B2 (en) 2006-07-11 2010-08-24 Ebi, Llc Intervertebral implantation apparatus
US20080051900A1 (en) * 2006-07-28 2008-02-28 Spinalmotion, Inc. Spinal Prosthesis with Offset Anchors
US20080051901A1 (en) * 2006-07-28 2008-02-28 Spinalmotion, Inc. Spinal Prosthesis with Multiple Pillar Anchors
US8105382B2 (en) 2006-12-07 2012-01-31 Interventional Spine, Inc. Intervertebral implant
US8465546B2 (en) 2007-02-16 2013-06-18 Ldr Medical Intervertebral disc prosthesis insertion assemblies
US8579910B2 (en) * 2007-05-18 2013-11-12 DePuy Synthes Products, LLC Insertion blade assembly and method of use
FR2916956B1 (fr) 2007-06-08 2012-12-14 Ldr Medical Cage intersomatique,prothese intervertebrale,dispositif d'ancrage et instrumentation d'implantation
US8900307B2 (en) 2007-06-26 2014-12-02 DePuy Synthes Products, LLC Highly lordosed fusion cage
US20090030421A1 (en) * 2007-07-23 2009-01-29 Depuy Spine, Inc. Implant engagement method and device
US20090043391A1 (en) 2007-08-09 2009-02-12 Spinalmotion, Inc. Customized Intervertebral Prosthetic Disc with Shock Absorption
US20100292798A1 (en) * 2007-10-19 2010-11-18 Gianluca Maestretti Hemi-prosthesis
WO2009055477A1 (en) 2007-10-22 2009-04-30 Spinalmotion, Inc. Method and spacer device for spanning a space formed upon removal of an intervertebral disc
AU2008316600B2 (en) 2007-10-25 2014-09-18 Jeffery D. Arnett Systems and methods for vertebral disc replacement
JP5441922B2 (ja) 2008-01-17 2014-03-12 ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング 膨張可能な椎間インプラント及び関連するその製造方法
JP5409653B2 (ja) 2008-01-18 2014-02-05 スパインコア，インコーポレイテッド 人工椎間板移植片を挿入するための器具および方法
US8088163B1 (en) 2008-02-06 2012-01-03 Kleiner Jeffrey B Tools and methods for spinal fusion
US8764833B2 (en) 2008-03-11 2014-07-01 Spinalmotion, Inc. Artificial intervertebral disc with lower height
US8936641B2 (en) 2008-04-05 2015-01-20 DePuy Synthes Products, LLC Expandable intervertebral implant
US9034038B2 (en) 2008-04-11 2015-05-19 Spinalmotion, Inc. Motion limiting insert for an artificial intervertebral disc
US20090276051A1 (en) 2008-05-05 2009-11-05 Spinalmotion, Inc. Polyaryletherketone Artificial Intervertebral Disc
US9220603B2 (en) 2008-07-02 2015-12-29 Simplify Medical, Inc. Limited motion prosthetic intervertebral disc
EP2299944A4 (en) 2008-07-17 2013-07-31 Spinalmotion Inc SYSTEM FOR INSTALLING ARTIFICIAL INTERVERTEBRAL DISCS
EP2299941A1 (en) 2008-07-18 2011-03-30 Spinalmotion Inc. Posterior prosthetic intervertebral disc
FR2934771B1 (fr) * 2008-08-07 2011-11-18 Jean Philippe Lemaire Prothese de disque intervertebral auto-adaptative et autostable.
US8366748B2 (en) 2008-12-05 2013-02-05 Kleiner Jeffrey Apparatus and method of spinal implant and fusion
US9247943B1 (en) * 2009-02-06 2016-02-02 Kleiner Intellectual Property, Llc Devices and methods for preparing an intervertebral workspace
US8906033B2 (en) * 2009-03-30 2014-12-09 DePuy Synthes Products, LLC Cervical motion disc inserter
US9526620B2 (en) 2009-03-30 2016-12-27 DePuy Synthes Products, Inc. Zero profile spinal fusion cage
US20170238984A1 (en) 2009-09-18 2017-08-24 Spinal Surgical Strategies, Llc Bone graft delivery device with positioning handle
US8906028B2 (en) 2009-09-18 2014-12-09 Spinal Surgical Strategies, Llc Bone graft delivery device and method of using the same
US10245159B1 (en) 2009-09-18 2019-04-02 Spinal Surgical Strategies, Llc Bone graft delivery system and method for using same
US9629729B2 (en) 2009-09-18 2017-04-25 Spinal Surgical Strategies, Llc Biological delivery system with adaptable fusion cage interface
US10973656B2 (en) 2009-09-18 2021-04-13 Spinal Surgical Strategies, Inc. Bone graft delivery system and method for using same
PL215752B1 (pl) * 2009-09-28 2014-01-31 Lfc Spolka Z Ograniczona Odpowiedzialnoscia Urzadzenie do chirurgicznego przemieszczania kregów
US8277509B2 (en) 2009-12-07 2012-10-02 Globus Medical, Inc. Transforaminal prosthetic spinal disc apparatus
US9393129B2 (en) 2009-12-10 2016-07-19 DePuy Synthes Products, Inc. Bellows-like expandable interbody fusion cage
US8858636B2 (en) 2010-04-09 2014-10-14 DePuy Synthes Products, LLC Intervertebral implant
US9301853B2 (en) 2010-04-09 2016-04-05 DePuy Synthes Products, Inc. Holder for implantation and extraction of prosthesis
US9907560B2 (en) 2010-06-24 2018-03-06 DePuy Synthes Products, Inc. Flexible vertebral body shavers
US8979860B2 (en) 2010-06-24 2015-03-17 DePuy Synthes Products. LLC Enhanced cage insertion device
EP2588034B1 (en) 2010-06-29 2018-01-03 Synthes GmbH Distractible intervertebral implant
US8900309B2 (en) * 2010-08-31 2014-12-02 Meditech Spine, Llc Spinal implants
US9402732B2 (en) 2010-10-11 2016-08-02 DePuy Synthes Products, Inc. Expandable interspinous process spacer implant
AU2012326198B2 (en) * 2011-10-18 2014-12-11 Luminex Corporation Methods and systems for image data processing
US9017410B2 (en) 2011-10-26 2015-04-28 Globus Medical, Inc. Artificial discs
US9717601B2 (en) 2013-02-28 2017-08-01 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
US9522070B2 (en) 2013-03-07 2016-12-20 Interventional Spine, Inc. Intervertebral implant
US9198770B2 (en) 2013-07-31 2015-12-01 Globus Medical, Inc. Artificial disc devices and related methods of use
US11426290B2 (en) 2015-03-06 2022-08-30 DePuy Synthes Products, Inc. Expandable intervertebral implant, system, kit and method
USD797290S1 (en) 2015-10-19 2017-09-12 Spinal Surgical Strategies, Llc Bone graft delivery tool
WO2018002715A2 (en) 2016-06-28 2018-01-04 Eit Emerging Implant Technologies Gmbh Expandable and angularly adjustable articulating intervertebral cages
EP3474783B1 (en) 2016-06-28 2023-05-03 Eit Emerging Implant Technologies GmbH Expandable, angularly adjustable intervertebral cages
US10888433B2 (en) 2016-12-14 2021-01-12 DePuy Synthes Products, Inc. Intervertebral implant inserter and related methods
US10398563B2 (en) 2017-05-08 2019-09-03 Medos International Sarl Expandable cage
US11344424B2 (en) 2017-06-14 2022-05-31 Medos International Sarl Expandable intervertebral implant and related methods
US10940016B2 (en) 2017-07-05 2021-03-09 Medos International Sarl Expandable intervertebral fusion cage
WO2019123281A1 (en) * 2017-12-18 2019-06-27 G & G S.R.L. Improved partial endoprosthesis device for a vertebral joint
US11446156B2 (en) 2018-10-25 2022-09-20 Medos International Sarl Expandable intervertebral implant, inserter instrument, and related methods
US11426286B2 (en) 2020-03-06 2022-08-30 Eit Emerging Implant Technologies Gmbh Expandable intervertebral implant
US11850160B2 (en) 2021-03-26 2023-12-26 Medos International Sarl Expandable lordotic intervertebral fusion cage
US11752009B2 (en) 2021-04-06 2023-09-12 Medos International Sarl Expandable intervertebral fusion cage

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3840904A (en) * 1973-04-30 1974-10-15 R Tronzo Acetabular cup prosthesis
CH640131A5 (en) 1979-10-03 1983-12-30 Sulzer Ag Complete intervertebral prosthesis
ATE44871T1 (de) 1984-09-04 1989-08-15 Univ Berlin Humboldt Bandscheibenendoprothese.
CH675826A5 (zh) * 1988-08-24 1990-11-15 Sulzer Ag
IT1228221B (it) * 1989-01-11 1991-06-05 Cremascoli Spa G Protesi acetabolare, applicabile senza cemento, con ancoraggio a corona.
FR2659226B1 (fr) 1990-03-07 1992-05-29 Jbs Sa Prothese pour disques intervertebraux et ses instruments d'implantation.
CH685369A5 (de) * 1991-07-05 1995-06-30 Sulzer Ag Patella-Prothese.
DE4208116C2 (de) * 1992-03-13 1995-08-03 Link Waldemar Gmbh Co Bandscheibenendoprothese
FR2707480B1 (fr) * 1993-06-28 1995-10-20 Bisserie Michel Prothèse discale intervertébrale.
US6251140B1 (en) * 1998-05-27 2001-06-26 Nuvasive, Inc. Interlocking spinal inserts
US6231609B1 (en) * 1998-07-09 2001-05-15 Hamid M. Mehdizadeh Disc replacement prosthesis
ATE263526T1 (de) * 1998-08-03 2004-04-15 Synthes Ag Zwischenwirbel-allotransplantat-distanzstück

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CN1288713A (zh) 2001-03-28
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US6416551B1 (en) 2002-07-09
DE59904848D1 (de) 2003-05-08
AU770122B2 (en) 2004-02-12
EP1057462A1 (de) 2000-12-06
BR0002436A (pt) 2001-01-02
AU3540500A (en) 2000-11-30
MXPA00004876A (es) 2002-03-08
ATE235863T1 (de) 2003-04-15

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