METHOD AND DEVICE FOR FABRICATING A PATIENT-SPECIFIC IMPLANT
    71.
    发明公开
    METHOD AND DEVICE FOR FABRICATING A PATIENT-SPECIFIC IMPLANT 有权
    方法和设备为患者植入特有的生产

    公开(公告)号:EP2536361A1

    公开(公告)日:2012-12-26

    申请号:EP11721822.2

    申请日:2011-02-19

    申请人: Inspire AG IRPD

    IPC分类号: A61F2/30 A61F2/28 A61C8/00

    摘要: The present invention provides a kit, a method of fabrication of the kit and a method of use of the kit for facilitating the fabrication of a patient-specific implant such as a cranial implant. In a preferred embodiment, the kit 30 includes a thermo-formed plastic sheet 32, a portion 34 of which is formed of PP plastics to the three dimensional contour of a bone structure of a specific patient. The thermo-formed sheet 32 optionally doubles as a container 36 for the remaining elements of the kit, which include bone cement 40a, 40b (typically in two part form, each part contained in a separate container device), and, optionally, disposable forming and/or mixing aids 42 such as a spatula. A kneading recess 44 is also formed in the thermoformed sheet 32 of the kit 30. A sheet 46 is adhered via adhesive 48 and extends between flanges 50 of the thermo-formed sheet, to seal and keep sterilized the components 40a, 40b and 42 and the mould recess (shaping form) 34 of the kit 30 within the container 36.

    Improved hip-joint prosthesis
    76.
    发明公开
    Improved hip-joint prosthesis 有权
    VerbesserteHüftgelenkprothese

    公开(公告)号:EP2386273A1

    公开(公告)日:2011-11-16

    申请号:EP10162677.8

    申请日:2010-05-12

    摘要: A method of optimizing the geometry of a femoral stem (20) of a hip joint prosthesis is disclosed. The femoral stem (20) comprises a neck (21) and an anchoring blade (29) that is attached to the neck (21) and that tapers towards a distal end (23) with a lateral narrow side (28) comprising a distal straight portion (33) and a proximal arcuate portion (32) corresponding to a curve. The transition between the distal straight portion (33) and the proximal arcuate portion (32) occurs at an outer lateral point (29). The method comprises a means of optimizing the profile of the curve of said proximal arcuate portion (32) by a process of iterative modeling steps using a series of curves each defined by a path traced by the outer lateral point (29) on withdrawal of a profile of the stem (20) from a cavity (35) of complementary shape to the stem (20). Preferably, during withdrawal of the profile of the stem (20) from the cavity (35) contact between lateral-distal (36) and proximal-medial (37) stem contours and respective associated boundaries of the cavity (35) are maintained. A femoral stem of a hip joint prosthesis produced by this method and a hip joint prosthesis system for use in the implantation of said femoral stem into a femur are also disclosed.

    摘要翻译: 公开了一种优化髋关节假体的股骨柄(20)的几何形状的方法。 股骨柄(20)包括颈部(21)和固定刀片(29),该固定刀片连接到颈部(21)并且朝向远端(23)渐缩,其中侧向窄边(28)包括远侧直线 部分(33)和对应于曲线的近端弓形部分(32)。 远端直部(33)与近端弓形部(32)之间的过渡处于外侧(29)的外侧。 该方法包括通过迭代建模步骤的过程来优化所述近端弓形部分(32)的曲线的轮廓的装置,所述迭代建模步骤使用由一系列曲线确定的曲线,所述曲线在由外侧点(29) 所述杆(20)从互补形状的空腔(35)到所述杆(20)的轮廓。 优选地,在将杆(20)的轮廓从空腔(35)中取出时,保持侧向远端(36)和近侧内侧(37)杆轮廓之间的接触以及空腔(35)的各自相关联的边界。 还公开了通过该方法产生的髋关节假体的股骨柄和用于将所述股骨柄植入股骨的髋关节假体系统。