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17 条记录 (耗时 0.011 秒)

    Composite artificial socket and hip joint prosthesis
    1.
    发明授权
    Composite artificial socket and hip joint prosthesis 失效
    复合人工插座和髋关节假体

    公开(公告)号：US5549695A

    公开(公告)日：1996-08-27

    申请号：US291384

    申请日：1994-08-16

    申请人： Lorenzo Spotorno ,  Roland Willi

    发明人： Lorenzo Spotorno ,  Roland Willi

    IPC分类号： A61F2/00 ,  A61F2/30 ,  A61F2/34

    CPC分类号： A61F2/34 ,  A61F2002/30367 ,  A61F2002/3038 ,  A61F2002/30433 ,  A61F2002/30904 ,  A61F2002/3414 ,  A61F2002/3424 ,  A61F2002/3448 ,  A61F2002/345 ,  A61F2002/3456 ,  A61F2002/3461 ,  A61F2002/3474 ,  A61F2002/3482 ,  A61F2220/0033 ,  A61F2220/0041 ,  A61F2310/00011

    摘要： The socket (2) comprises a metallic outer shell (4), an intermediate shell (5) of plastics and a metallic inner shell (6), which may be inserted into the latter using a connection by shape. The outer shell (4) is divided into segments (4a, 4b, 4c, 4d, 4e) by recesses (9) open towards its equatorial marginal region. The outer shell (4) and the inner shell (6) are rigidly supported against each other in the direction of a common main axis (A) by a contact portion (8), and are non-rotatably connected by an attachment element (15) eccentrically offset with respect to the main axis (A). The intermediate shell (5) has an aperture (20), which receives the contact portion (8), and an outer surface (21), which has a supporting portion (21a) for bearing onto a portion of the inner surface (18) of the outer shell (4), and outside this supporting portion (21a) delimits with the remaining portion of the inner surface (18) a spacing (S), which allows corresponding relative movement of the intermediate shell (5), which contains the inner shell (6), and at least one of the segments (4a, 4b, 4c, 4d, 4e) of the outer shell (4) transversely to the main axis (A). The implanted outer shell (4) may, under load, elastically deform with the part of the bone by which it is surrounded, while the spherical shape of the inner shell (6) remains undisturbed.

    摘要翻译： 插座（2）包括金属外壳（4），塑料的中间壳（5）和金属内壳（6），其可以通过形状的连接插入其中。 外壳（4）通过向其赤道边缘区域敞开的凹槽（9）分成段（4a，4b，4c，4d，4e）。 外壳（4）和内壳（6）通过接触部分（8）在公共主轴线（A）的方向上彼此刚性地支撑，并且通过附接元件（15）不可旋转地连接 ）相对于主轴（A）偏心偏移。 中间壳体（5）具有容纳接触部分（8）的孔（20）和具有用于承载在内表面（18）的一部分上的支撑部分（21a）的外表面（21） 的外壳（4）的外部，并且在该支撑部分（21a）的外部与内表面（18）的剩余部分限定间隔（S），其允许中间壳体（5）的相应的相对运动，其包含 内壳（6）和外壳（4）横向于主轴线（A）的段（4a，4b，4c，4d，4e）中的至少一个。 植入的外壳（4）可以在负载下与其被包围的骨的部分弹性变形，同时内壳（6）的球形保持不受干扰。

    Implantable metallic open-celled lattice/polyethylene composite material and devices
    3.
    发明授权
    Implantable metallic open-celled lattice/polyethylene composite material and devices 失效
    可植入金属开孔晶格/聚乙烯复合材料和器件

    公开(公告)号：US6087553A

    公开(公告)日：2000-07-11

    申请号：US968917

    申请日：1997-11-06

    申请人： Robert C. Cohen ,  Makoto Takeuchi

    发明人： Robert C. Cohen ,  Makoto Takeuchi

    IPC分类号： A61F2/00 ,  A61F2/30 ,  A61F2/32 ,  A61F2/34 ,  A61F2/36 ,  A61F2/46 ,  A61L27/40 ,  A61F2/28

    CPC分类号： A61F2/34 ,  A61L27/40 ,  A61F2/30767 ,  A61F2/32 ,  A61F2/3662 ,  A61F2002/30004 ,  A61F2002/30199 ,  A61F2002/30685 ,  A61F2002/30894 ,  A61F2002/3092 ,  A61F2002/30957 ,  A61F2002/30971 ,  A61F2002/3412 ,  A61F2002/3443 ,  A61F2002/3448 ,  A61F2002/3456 ,  A61F2002/3611 ,  A61F2002/3625 ,  A61F2002/365 ,  A61F2002/4631 ,  A61F2230/0063 ,  A61F2240/001 ,  A61F2250/0014 ,  A61F2310/00023 ,  A61F2310/00029 ,  A61F2310/00161 ,  A61F2310/00544

    摘要： A method for making a composite material for implantation in the body which is able to act as a matrix for the biological ingrowth of bone and is suitable as a bearing surface. The method consists of compression molding the implant by forming to net shape the first material to its desired end device and inserting it into a mold cavity. Polyethylene in is then placed onto the first material, and the mold is subjected to heat and pressure for specific time durations. The end result is polyethylene which is fully interdigitated into the first material to a desired depth which is controlled by temperature, pressure and time constraints. The present method creates an interface between the first material and the polyethylene which is securely fixed and does not allow micro and macro motion between the two materials. The compression molding process optimizes the mechanical and wear properties of the polyethylene, and enables the new material to provide a smooth and frictionless bearing surface on one side of the composite material. The opposite side of the composite material is porous and thus allows for biological ingrowth of new bone or cement interdigitation. The first material provides structural stability, yet allows flexibility and load transfer to improve biological interface characteristics and a more normal bony remodeling that are lacking in other acetabular cups. An acetabular cup constructed with the composite material is also disclosed.

    摘要翻译： 一种用于制造用于植入体内的复合材料的方法，其能够用作骨的生物向内生长的基质并且适合作为支承表面。 该方法包括通过将第一材料形成网状并将其插入到模具腔中来压缩植入物。 然后将聚乙烯放置在第一材料上，并将模具经受加热和压力达特定的时间。 最终的结果是将由第一种材料完全交叉到达到所需深度的聚乙烯，该深度由温度，压力和时间限制来控制。 本方法在第一材料和聚乙烯之间产生牢固固定的界面，并且不允许两种材料之间的微观和微观运动。 压缩成型工艺优化了聚乙烯的机械和磨损性能，并且使新材料能够在复合材料的一侧上提供光滑且无摩擦的支承表面。 复合材料的相对侧是多孔的，因此允许新骨或水泥交叉生物的生物向内生长。 第一种材料提供结构稳定性，但允许灵活性和负载转移以改善其他髋臼杯中缺乏的生物界面特征和更正常的骨重建。 还公开了由复合材料构成的髋臼杯。

    Elliptic acetabular component for a hip prothesis
    7.
    发明授权
    Elliptic acetabular component for a hip prothesis 失效
    用于髋关节假体的椭圆髋臼部件

    公开(公告)号：US6059833A

    公开(公告)日：2000-05-09

    申请号：US652568

    申请日：1996-09-18

    申请人： Hendrik Cornelis Doets

    发明人： Hendrik Cornelis Doets

    IPC分类号： A61F2/00 ,  A61F2/02 ,  A61F2/30 ,  A61F2/34 ,  A61F2/46 ,  A61F2/32 ,  A61F2/36

    CPC分类号： A61F2/4609 ,  A61F2/34 ,  A61F2/30767 ,  A61F2002/30367 ,  A61F2002/30403 ,  A61F2002/30405 ,  A61F2002/30538 ,  A61F2002/30841 ,  A61F2002/3401 ,  A61F2002/3404 ,  A61F2002/3417 ,  A61F2002/3443 ,  A61F2002/3451 ,  A61F2002/3456 ,  A61F2002/4629 ,  A61F2220/0025 ,  A61F2220/0033 ,  A61F2250/0006 ,  A61F2310/00023 ,  A61F2310/00796

    摘要： A hip cup for use as an acetabular component in a hip prosthesis including a shell part having a partially convex outer surface. The shell part is insertable in a cavity having an inner surface that is substantially defined by the outer surface of a segment of a sphere. The outer surface of the shell part substantially corresponds to the outer surface of a part of an ellipsoid and has an apex. During positioning of the shell part in the cavity, the shell part has a circumferential edge contacting the longitudinal edge of the cavity, with a space formed between the inner surface of the cavity and the apex of the shell part. A tool has an end releasably attachable to the shell part and a striking end. A handle on the tool permits positioning the tool and shell part to the cavity and striking the end to enact the shell in the part in a selected position.

    摘要翻译： PCT No.PCT / EP94 / 04193 Sec。 371日期1996年9月18日 102（e）1996年9月18日PCT 1994年12月16日PCT PCT。 公开号WO95 / 16413 日期：1995年6月22日在髋关节假体中用作髋臼部件的髋部杯，其包括具有部分凸起的外表面的外壳部分。 外壳部分可插入具有基本上由球体的段的外表面限定的内表面的空腔中。 外壳部分的外表面基本上对应于椭圆体的一部分的外表面并且具有顶点。 在外壳部分定位在空腔中时，外壳部分具有与空腔的纵向边缘接触的圆周边缘，并且在空腔的内表面和外壳部分的顶点之间形成空间。 工具具有可释放地附接到壳部分和打击端的端部。 工具上的手柄允许将工具和壳体部分定位到腔体并且撞击端部以将壳体在部件中选定位置。

    Hip joint socket for cement-free anchoring in the pelvis
    9.
    发明授权
    Hip joint socket for cement-free anchoring in the pelvis 失效
    髋关节插槽，用于骨盆无水泥锚固

    公开(公告)号：US4666448A

    公开(公告)日：1987-05-19

    申请号：US672289

    申请日：1984-11-16

    申请人： Reinhold Ganz

    发明人： Reinhold Ganz

    IPC分类号： A61F2/30 ,  A61F2/34

    CPC分类号： A61F2/34 ,  A61F2002/30662 ,  A61F2002/30879 ,  A61F2002/3456 ,  A61F2002/3461

    摘要： A hip joint socket for cement-free anchoring in the pelvis includes a socket member with a hemispherical exterior surface which is flattened at its apex region and a socket which is spherical-symmetrical relative to the rotational axis of symmetry of the exterior surface.The exterior surface of the socket member projects rimless above the equatorial plane of the socket and has the form of a regular cylinder beyond the equatorial plane.

    摘要翻译： 用于骨盆中无水泥锚固的髋关节插座包括具有半球形外表面的插座构件，其在其顶点区域处被压扁，并且相对于外表面的旋转对称轴线是球形对称的插座。 插座构件的外表面在插座的赤道平面上方无凸起，并且具有超出赤道面的规则气缸的形式。