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    • 3. 发明申请
    • FURTHER IMPROVED METHOD AND APPARATUS FOR REMOVING PROSTHETIC CEMENT
    • 进一步改进的方法和装置去除浮选水泥
    • WO1990001299A1
    • 1990-02-22
    • PCT/AU1989000319
    • 1989-07-28
    • ROGER, Gregory, James
    • A61B17/22
    • A61B17/1659A61B17/1668A61B2090/062A61F2/3662A61F2002/30952
    • A process is described for the removal of prosthetic cement from the medullary canal (11) of a patient's long bone comprising: (a) determining the profile of a line of intersection of a plane, and a cement/bone interface intersected by that plane; (b) determining the thickness of the prosthetic cement in the said plane; (c) forming or selecting a substantially planar cutting blade (17) with a cutting edge having a profile (18) substantially corresponding to the profile of the line; (d) inserting the cutting blade (17) into the prosthetic cavity with the blade lying in the said plane, the cutting edge directed towards the cement/bone interface, and to a depth such that corresponding points of the cutting edge are adjacent corresponding points on the said line; (e) causing the cutting blade to reciprocate; (f) inserting into the prosthetic cavity between a non-cutting edge of the blade and a wall of the prosthetic cavity spaced from the said cement/bone interface a guide member (30) adapted to urge the cutting edge of the blade into the prosthetic cement towards the said cement/bone interface but substantially not beyond it; (g) repeating steps (e) to (f); (h) removing the segments of prosthetic cement so formed from the medullary canal (11).
    • 描述了用于从患者长骨的髓管(11)去除假体水泥的方法,其包括:(a)确定平面与由该平面相交的水泥/骨界面的交叉线的轮廓; (b)确定所述平面中假体水泥的厚度; (c)形成或选择具有基本对应于所述线的轮廓的轮廓(18)的切割刃的基本上平面的切割刀片(17) (d)刀片位于所述平面内,将切割刀片(17)插入假肢腔中,切割边缘朝向水泥/骨界面,并且使切削刃的对应点相邻于相应点 在上述线上 (e)使切割刀片往复运动; (f)在所述刀片的非切割边缘与所述水泥/骨界面间隔开的所述假体腔的壁之间插入所述假体腔中,所述引导构件适于将所述刀片的切割边缘推入所述假体 水泥朝向所述水泥/骨界面但基本上不超过它; (g)重复步骤(e)至(f); (h)从髓质管(11)上去除如此形成的假体水泥段。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR REMOVING PROSTHETIC CEMENT
    • 去除水泥的方法和装置
    • WO1987002571A1
    • 1987-05-07
    • PCT/AU1986000321
    • 1986-10-28
    • ROGER, Gregory, James
    • A61B17/22
    • A61B17/15A61B17/144A61B17/8847A61F2/3662A61F2/4684A61F2002/30581A61F2002/30952A61F2002/3631
    • A device, and method of producing and using same, for use in removing the prosthetic cement from a bone in which an artificial joint (such as hip joint) is to be replaced. The device cuts the prosthetic cement in a longitudinal plane of the prosthetic cavity to the complete depth or the cement but without substantially cutting into the bone. The device includes a reciprocating saw head (8) which is advanced longitudinally of the cavity and maintained within the preselected longitudinal plane of the cavity by a guide (1) while it cuts through the cement (10). The saw head (8) is transversely biased towards the cement so that it cuts only to a depth defined by the profile of a template (6). The profile of the template (6) is obtained from X-ray information obtained before commencement of the operation.
    • 用于从人造关节(例如髋关节)被替换的骨中去除假体水泥的装置及其制造和使用方法。 该装置将假体水泥在假体腔的纵向平面中切割成完整的深度或水泥,但基本上不切入骨中。 该装置包括往复式锯头(8),该往复锯头(8)在空腔的纵向延伸并且当其穿过水泥(10)时通过导向件(1)保持在空腔的预选的纵向平面内。 锯头(8)横向偏向水泥,使其仅切割由模板(6)的轮廓限定的深度。 模板(6)的轮廓是从在操作开始之前获得的X射线信息获得的。