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公开(公告)号：US20110103556A1
公开(公告)日：2011-05-05
申请号：US12906394
申请日：2010-10-18
申请人： Ronald M. Carn
发明人： Ronald M. Carn
IPC分类号： A61B6/08
摘要： An alignment fixture for taking X-ray images of a patient, such as an image of the patient's hip region preparatory to hip arthroplasty. The alignment fixture comprises multiple support legs for resting on the patient at known positions, such as upon known bony prominences, in combination with aiming marks used for anatomically aligning the patent's pelvis under an X-ray beam. A ruled grid plate on the fixture is adjustably positioned between an image beam source and the patient, as a function of patient thickness in the pelvic region, so that a ruled grid overlays the anatomical region of interest and exhibits an apparent parallax image magnification corresponding with the parallax image magnification of a centerline of the anatomical region, such as the hip joint. X-ray images taken by use of the alignment fixture can be viewed and/or scaled to select a properly sized prosthesis for the specific patient.
摘要翻译： 用于拍摄患者的X射线图像的对准夹具，例如准备髋关节置换术的患者髋部区域的图像。 对准夹具包括多个支撑腿，用于在已知位置（例如已知的骨突出处）与用于在X射线束下解剖学对准专利骨盆的瞄准标记的已知位置处放置在患者身上。 固定装置上的格栅格板可调节地位于图像光束源和患者之间，作为骨盆区域中患者厚度的函数，使得格格网覆盖感兴趣的解剖区域，并且呈现与 解剖区域的中心线的视差图像放大率，例如髋关节。 可以观察和/或缩放通过使用对准夹具拍摄的X射线图像，以为特定患者选择合适尺寸的假体。
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公开(公告)号：US5662657A
公开(公告)日：1997-09-02
申请号：US587491
申请日：1996-01-17
申请人： Ronald M. Carn
发明人： Ronald M. Carn
CPC分类号： A61F2/4614 , A61F2/30723 , A61B17/8808 , A61F2/3676 , A61F2002/30113 , A61F2002/30166 , A61F2002/30225 , A61F2002/30324 , A61F2002/30797 , A61F2002/30884 , A61F2002/30892 , A61F2002/4627 , A61F2002/4631 , A61F2230/0006 , A61F2230/0028 , A61F2230/0069 , A61F2250/0036 , A61L2430/02
摘要： A bone plug is provided for insertion into the medullary canal of a patient bone during orthopedic surgery, wherein the bone plug restricts or prevents passage of bone cement introduced under pressure into the medullary canal. The bone plug comprises a generally cylindrical member formed from a biocompatible material such as polyethylene and having sets of distal and proximal fins formed thereon. The bone plug is installed with an insertion tool that can be readily manipulated to orient the distal fins to define distally presented outer edges to anchor the bone plug by biting into patient bone, whereas the proximal fins are oriented to define proximally presented outer edges to seal against bypass flow of bone cement past the bone plug.
摘要翻译： 提供骨插塞用于在整形外科手术期间插入到患者骨髓的髓管中，其中骨塞限制或阻止在压力下引入骨髓通道进入髓管。 骨塞包括由诸如聚乙烯的生物相容性材料形成的大致圆柱形的构件，并且具有在其上形成的一组远侧和近侧翅片。 骨插塞安装有插入工具，其可以容易地被操纵以使远侧翅片定向以限定向远侧呈现的外边缘，以通过咬入患者骨头来锚固骨栓，而近侧翼片被定向成限定近端呈现的外边缘以密封 防止骨水泥绕过骨塞。
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