首页> 外国专利> Manufacturing bone prosthesis for filling gaps of all/part of bone of patient, comprises digitalizing patient using three-dimensional medical acquisition device by magnetic resonance, defining prosthesis, and manufacturing the prosthesis

Manufacturing bone prosthesis for filling gaps of all/part of bone of patient, comprises digitalizing patient using three-dimensional medical acquisition device by magnetic resonance, defining prosthesis, and manufacturing the prosthesis

机译：制造用于填充患者的全部/部分骨骼的间隙的骨假体，包括使用三维医学采集设备通过磁共振对患者进行数字化，定义假体并制造假体

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摘要

The method comprises digitalizing the patient using a three-dimensional medical acquisition device such as a scanner or an imagery device by magnetic resonance during establishing a file such as osseous representative of remaining osseous volumes of the patient, defining the prosthesis during defining a file such as prosthesis, representative of the shape of the final prosthesis, according to which the final prosthesis comprises a part of replacement of the bone gaps of the patient, and manufacturing the prosthesis during transfer of the prosthesis file towards the rapid prototyping machine. The method comprises digitalizing the patient using a three-dimensional medical acquisition device such as a scanner or an imagery device by magnetic resonance during establishing a file such as osseous representative of remaining osseous volumes of the patient, defining the prosthesis during defining a file such as prosthesis, representative of the shape of the final prosthesis, according to which the final prosthesis comprises a part of replacement of the bone gaps of the patient, manufacturing the prosthesis during transfer of the prosthesis file towards the rapid prototyping machine comprising a laser gun that is guided in response to information of the prosthesis file in a prototype powder layer to operate a fusion with the selective laser part of each layer so as to manufacture a section of a support and/or a section of prosthesis, and performing finishing step. The part is obtained from the bone file of the patient by symmetry of bone parts corresponding to the patient and/or from the bone file of an intact model by transposition of the bone parts of the models. The file comprises a support for manufacturing the prosthesis to realize a succession of the cross-sections thickness whose stack determines the shape of the prosthesis, and instructions series for a laser beam of rapid prototyping machine intended to allow the manufacturing of the support and prosthesis. In the manufacturing step, synthetic prototyping powder is used and has an increased rigidity. Recesses are filled by a three-dimensional grid forming an alveolate structure intended to allow colonization of the grid by bone cells of the patient. An independent claim is included for a bone prosthesis.

机译：该方法包括在建立诸如骨的文件（例如代表患者的剩余骨体积）的过程中通过磁共振使用三维扫描仪（诸如扫描仪或成像设备）对患者进行数字化，在定义诸如以下的文件期间限定假体。假体，代表最终假体的形状，根据该假体，最终假体包括替换患者骨间隙的一部分，并在将假体锉朝快速成型机转移的过程中制造假体。该方法包括在建立诸如骨的文件（例如代表患者的剩余骨体积）的过程中通过磁共振使用三维扫描仪（诸如扫描仪或成像设备）对患者进行数字化，在定义诸如以下的文件期间限定假体。假体，代表最终假体的形状，根据该假体，最终假体包括替换患者骨间隙的一部分，在将假体锉朝包括激光枪的快速成型机转移的过程中制造假体响应于原型粉末层中的假体文件的信息而引导，以与每个层的选择性激光部分进行融合，从而制造支撑物的一部分和/或假体的一部分，并执行精加工步骤。该部分是通过对应于患者的骨骼部分的对称性从患者的骨骼文件中获得的，和/或通过换位模型的骨骼部分而从完整模型的骨骼文件中获得的。该锉刀包括用于制造假体以实现一系列横截面厚度的支撑件，其堆叠确定假体的形状，以及用于快速成型机的激光束的指令系列，其旨在允许制造该假体和假体。在制造步骤中，使用了合成原型粉末并具有更高的刚性。凹槽由形成网格结构的三维网格填充，该网格结构旨在允许患者的骨细胞在网格上定植。骨骼假体包括独立索赔。

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公开/公告号FR2979817A1

专利类型
公开/公告日2013-03-15

原文格式PDF
申请/专利权人 BERTIN JEAN-MICHEL;
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申请/专利号FR20110058117
发明设计人 BERTIN JEAN-MICHEL;
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申请日2011-09-13
分类号A61F2/28;B22F3/105;B29C67;
国家 FR
入库时间 2022-08-21 16:21:03

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