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1. 发明公开

EP3222234A1 POROUS TANTALUM METAL HOLLOW SCREW AND APPLICATIONS THEREOF 有权
标题翻译：多孔钽金属空心螺钉及其应用
公开(公告)号：EP3222234A1
公开(公告)日：2017-09-27
申请号：EP16858774.9
申请日：2016-07-26
申请人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
发明人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
IPC分类号： A61B17/86 , A61L31/08
摘要： A porous tantalum metal hollow screw comprises a screw shaft and a screw head. The screw shaft and the screw head are integrally formed. A thread is disposed on the outer surface of the front end of the screw shaft, and the ratio of the length of the thread to the length of the screw shaft is 1:1.7-2.3. The screw head is a conical screw head having a cylindrical screw top, and the included angle between the conical surface of the conical screw head and the central line of the screw shaft ranges from 44° to 46°. Grooves symmetric about the central line of the screw shaft are formed in the outer surfaces of the two sides of the cylindrical screw top; the included angle between the two inclined surfaces of each groove is 60°. A through hole is formed in the central shaft of the screw shaft. A smooth sliding shaft is disposed between the thread and the screw head. By means of the structure of the hollow screw, screwing-in and firm fixation of the hollow screw are facilitated, secondary displacement at a bone fracture part is avoided, the defect of deformation of the tail part of the screw when the screw is screwed in is overcome, and force can reach the front end uniformly, thereby reducing the possibility of deformation and cracking of the screw.
摘要翻译：多孔钽金属空心螺钉包括螺钉轴和螺钉头。螺杆和螺杆头一体成型。螺杆前端外表面设有螺纹，螺纹长度与螺杆长度的比例为1：1.7-2.3。螺钉头为圆柱形螺钉头，锥形螺钉头的圆锥面与螺钉轴中心线夹角为44°〜46°。在圆柱形螺杆顶部两侧的外表面上形成有关于螺杆轴中心线对称的槽; 每个凹槽的两个倾斜表面之间的夹角为60°。螺杆的中心轴上形成有一个通孔。在螺纹和螺钉头之间设置有光滑的滑动轴。借助于空心螺钉的结构，便于中空螺钉的拧入和牢固固定，避免了骨折部分的二次位移，螺钉旋入时螺钉尾部变形的缺陷被克服，并且力可以均匀地到达前端，从而降低了螺钉变形和开裂的可能性。

2. 发明授权

EP3222234B1 POROUS TANTALUM METAL HOLLOW SCREW 有权
公开(公告)号：EP3222234B1
公开(公告)日：2020-10-21
申请号：EP16858774.9
申请日：2016-07-26
申请人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
发明人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
IPC分类号： A61B17/86 , A61L31/08 , A61B17/74

3. 发明公开

EP3222748A1 MEDICAL POROUS TANTALUM METAL MATERIAL AND PREPARATION METHOD THEREFOR 有权转让
标题翻译：医用多孔钽金属材料及其制备方法
公开(公告)号：EP3222748A1
公开(公告)日：2017-09-27
申请号：EP16858775.6
申请日：2016-07-26
申请人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
发明人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Huang, Shibo , Yu, Xiaowei , Wang, Wei
IPC分类号： C23C16/14
CPC分类号： C23C16/14 , A61F2/30767 , A61L27/306 , A61L27/56 , A61L2430/02 , C23C16/0227 , C23C16/045 , C23C16/4481
摘要： A medical porous tantalum metal material is prepared by means of a chemical vapor deposition method, in which a tantalum metal compound is reduced to tantalum metal powder, and the tantalum metal powder is evenly deposited on the surface of a porous silicon support to form a tantalum coating, the tantalum metal compound being one of tantalum pentachloride and tantalum fluoride, the porosity of the porous silicon support being higher than 70%, the pore diameter of the porous silicon support being 100µm to 600µm, and the thickness of the tantalum coating being 10µm to 50µm. Also disclosed is a method for preparing the medical porous tantalum metal material.
摘要翻译：医用多孔钽金属材料通过化学气相沉积法制备，其中将钽金属化合物还原成钽金属粉末，并将钽金属粉末均匀沉积在多孔硅支撑物的表面上以形成钽钽金属化合物是五氯化钽和氟化钽中的一种，多孔硅载体的孔隙率大于70％，多孔硅载体的孔径为100μm至600μm，钽涂层的厚度为10μm 到50μm。还公开了用于制备医用多孔钽金属材料的方法。

4. 发明公开

EP3453351A1 POROUS TANTALUM METAL SCREW FOR FIXING BROKEN BONE, AND APPLICATION THEREOF 有权
公开(公告)号：EP3453351A1
公开(公告)日：2019-03-13
申请号：EP16900959.4
申请日：2016-07-26
申请人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Liu, Baoyi , Ma, Zhijie , Wang, Wei
发明人： Zhao, Dewei , Wang, Benjie , Xie, Hui , Liu, Baoyi , Ma, Zhijie , Wang, Wei
IPC分类号： A61B17/86 , A61L31/02 , A61L31/14
摘要： A porous tantalum metal screw for fixing a broken bone, comprising a screw body (1). The front end of the screw body (1) is provided with a front end thread section (11), the rear end of the screw body (1) is provided with a rear end thread section (12), and there is a smooth round bar (13) between the front end thread section (11) and the rear end thread section (12). The pitch of threads of the rear end thread section (12) is less than that of the front end thread section (11), and the depth of threads of the rear end thread section (12) is greater than that of the front end thread section (11). The external surfaces of two sides of the end of the rear end thread section (12) are symmetrically provided with grooves (2), with respect to the center line of the screw body (1), the angle between the two inclined planes of the groove (2) being 30 degrees. The structure of the screw is favorable for threading in and securely fixing the screw, preventing the broken bone from being displaced again, and may further prevent the tail of the screw from being deformed when the screw is threaded in, so that the force uniformly reaches the front end, reducing the possibility of the deformation or breakage of the screw.

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