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    Apparatus, method and article for direct slicing of step based nurbs models for solid freeform fabrication
    1.
    发明申请
    Apparatus, method and article for direct slicing of step based nurbs models for solid freeform fabrication 审中-公开
    用于固体自由形成制造的基于步骤的nurbs模型的直接切片的装置，方法和制品

    公开(公告)号：US20060155418A1

    公开(公告)日：2006-07-13

    申请号：US10823095

    申请日：2004-04-12

    申请人： Thomas Bradbury ,  Binil Starly ,  Wing Lau ,  Wei Sun ,  Alan Lau ,  Adolphe Youssef ,  Christopher Gaylo

    发明人： Thomas Bradbury ,  Binil Starly ,  Wing Lau ,  Wei Sun ,  Alan Lau ,  Adolphe Youssef ,  Christopher Gaylo

    IPC分类号： G06F19/00

    CPC分类号： G05B19/4099 ,  G05B2219/35133 ,  G05B2219/49013 ,  G05B2219/49014 ,  G06T17/30 ,  Y02P90/265

    摘要： Direct slicing of CAD models to generate process planning instructions for solid freeform fabrication may overcome inherent disadvantages of using STL format in terms of the process accuracy, ease of file management, and incorporation of multiple materials. This paper will present the results of our development of a direct slicing algorithm for layered freeform fabrication. The direct slicing algorithm was based on a neutral, international standard (ISO 10303) STEP-formatted NURBS geometric representation and is intended to be independent of any commercial CAD software. The following aspects of the development effort will be presented: 1) Determination of optimal build direction based upon STEP-based NURBS models; 2) Adaptive subdivision of NURBS data for geometric refinement; and 3) Ray-casting slice generation into sets of raster patterns. Feasibility studies applying the direct slicing algorithm to example models and the generation of fabrication planning instructions involving multi-material structures will also be presented.

    摘要翻译： CAD模型的直接切片生成用于实体自由形状制作的过程规划说明可以克服在过程准确性，文件管理的便利性以及多种材料的结合方面使用STL格式的固有缺点。 本文将介绍我们开发用于分层自由形状制造的直接切片算法的结果。 直接切片算法基于中立的国际标准（ISO 10303）STEP格式的NURBS几何表示，旨在独立于任何商业CAD软件。 将介绍以下方面的开发工作：1）基于STEP的NURBS模型确定最优构建方向; 2）自适应细分NURBS数据进行几何细化; 和3）将射线切片生成成光栅图案集合。 还将介绍将直接切片算法应用到示例模型和涉及多材料结构的制造计划指令的生成的可行性研究。

    Bone putty composition that maintains granule suspension at reduced temperatures
    3.
    发明申请
    Bone putty composition that maintains granule suspension at reduced temperatures 审中-公开
    在降低温度下保持颗粒悬浮的骨腻子组合物

    公开(公告)号：US20060110357A1

    公开(公告)日：2006-05-25

    申请号：US11004878

    申请日：2004-12-07

    申请人： Peter Materna ,  Thomas West ,  Thomas Bradbury

    发明人： Peter Materna ,  Thomas West ,  Thomas Bradbury

    IPC分类号： A61K31/765 ,  A61K33/42

    CPC分类号： A61K31/765 ,  A61L24/0031 ,  A61L24/0084 ,  A61L24/02 ,  A61L27/12 ,  A61L27/46 ,  A61L27/52 ,  A61L2430/02

    摘要： The invention is directed to a bone putty composition comprising a carrier formulation comprising water and a carrier substance, and granules wherein said bone putty composition exhibits gel-like Theological properties throughout the temperature range between about body temperature and temperatures approaching about 0° C. The bone putty composition further exhibits reverse phase Theological behavior in at least a portion of the same temperature range. The granules may comprise tricalcium phosphate (hereinafter “TCP”) or other calcium phosphates, they may be porous, and they are suspended in the carrier formulation. In one embodiment of the invention, the bone putty composition withstands exposure to certain temperatures below about room temperature without precipitation of the granules from suspension.

    摘要翻译： 本发明涉及包含含有水和载体物质的载体制剂和颗粒的骨腻子组合物，其中所述骨腻子组合物在约体温和接近约0℃的温度范围内表现出凝胶状神经学性质。 骨腻子组合物在相同温度范围的至少一部分中进一步显示反相的神学行为。 颗粒可以包括磷酸三钙（以下称为“TCP”）或其它磷酸钙，它们可以是多孔的，并且它们悬浮在载体制剂中。 在本发明的一个实施方案中，骨腻子组合物经受暴露于低于约室温的某些温度，而不会使颗粒从悬浮液中沉淀。

    Method and system for repairing endosseous implants, such as with a bone graft implant
    8.
    发明申请
    Method and system for repairing endosseous implants, such as with a bone graft implant 审中-公开
    用于修复骨内植入物的方法和系统，例如用骨移植物植入物

    公开(公告)号：US20050008990A1

    公开(公告)日：2005-01-13

    申请号：US10789439

    申请日：2004-02-26

    申请人： Scott Ganz ,  Peter Materna ,  Roger Stikeleather ,  Thomas Bradbury

    发明人： Scott Ganz ,  Peter Materna ,  Roger Stikeleather ,  Thomas Bradbury

    IPC分类号： A61C8/00 ,  A61C5/00

    CPC分类号： A61C8/0006 ,  A61C8/00

    摘要： A bone graft that is made at least partially of synthetic material and is of a suitable shape to fill a recess around the base of an ailing/failing endosseous implant. The bone graft may be pre-manufactured in the suitable shape. The invention also comprises a method of installing either such a bone graft or any other type of filler. The invention also comprises various types of bone graft profiler tools suitable for preparing the recess, and optionally an alignment post to assist in the use of the bone graft profiler tool(s). The dimensions of the bone graft profiler tool(s) and the dimensions of the bone graft and the dimensions of the alignment post may be chosen to have defined geometric relationships with respect to each other, with respect to the dimensions of the existing implant base, and with respect to the extent of bone deterioration at a particular implant site in a particular patient.

    摘要翻译： 至少部分由合成材料制成并具有合适形状的骨移植物，以填充围绕/失败的内骨植入物的基部周围的凹陷。 骨移植物可以以合适的形状预先制造。 本发明还包括安装这种骨移植物或任何其它类型的填充物的方法。 本发明还包括适合于制备凹部的各种类型的骨移植物分析器工具，以及可选的辅助使用骨移植物轮廓仪工具的对准柱。 骨移植物轮廓仪工具的尺寸和骨移植物的尺寸以及对准柱的尺寸可以被选择为相对于现有植入物基座的尺寸而相对于彼此具有限定的几何关系， 以及特定患者的特定植入部位的骨质退化程度。