专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4629464A Porous hydroxyapatite material for artificial bone substitute 失效
标题翻译：多孔羟基磷灰石材料为人造骨替代品
公开(公告)号：US4629464A
公开(公告)日：1986-12-16
申请号：US770722
申请日：1985-08-29
申请人： Susumu Takata , Shoichi Wakabayashi , Hiroyasu Noma , Tatsuya Wakatsuki
发明人： Susumu Takata , Shoichi Wakabayashi , Hiroyasu Noma , Tatsuya Wakatsuki
IPC分类号： A61F2/00 , A61F2/28 , A61F2/30 , A61L27/12 , A61L27/46 , C04B35/447 , C04B38/00 , C07C61/06
CPC分类号： C04B38/0051 , A61F2/28 , A61F2/30767 , A61L27/12 , A61L27/46 , C04B35/447 , A61F2002/30011 , A61F2002/3092 , A61F2002/30968 , A61F2250/0023 , A61F2310/00293 , C04B2111/00836
摘要： The sintered microporous hydroxyapatite material of the invention is useful as an artificial bone substitute material either in a granular and slurried from in a physiological saline solution used as a filling material for lost portions or cavities of bones or in a form of a shaped prosthetic bone substitute member. The inventive material is characteristic in the open pore structure of micropores with a pore diameter distribution in the range from 0.01 to 0.10 mm and a porosity in the range from 20 to 50%. When the material is used in the form of a granular bone filling, the particle diameter thereof should be in the range from 0.1 to 2.0 mm. When the material is used as the prosthetic bone substitute member, the shaped body should be formed of the matrix of the inventive microporous material and pores with a pore diameter distribution in the range from 0.2 to 2.0 mm. When an increased bending strength is desired, the prosthetic member should preferably have a core-and-crust structure of which the matrix of the core portion and the crust layer having a thickness of 0.1 to 2 mm are formed of the inventive microporous material, the core portion being formed of the matrix and pores of 0.2 to 2.0 mm diameter distribution throughout the matrix.
摘要翻译：本发明的烧结微孔羟基磷灰石材料可用作颗粒状并在生理盐水溶液中制成的人造骨替代材料，所述生理盐水溶液用作骨丢失部分或空腔的填充材料或成形的假体骨替代物会员。本发明的材料在孔径分布范围为0.01至0.10mm，孔隙率为20至50％的微孔的开孔结构中是特征的。当以粒状骨填充的形式使用材料时，其粒径应在0.1〜2.0mm的范围内。当该材料用作假体骨替代部件时，成形体应由本发明的微孔材料的基体和孔径分布范围为0.2至2.0mm的孔形成。当需要增加的弯曲强度时，假体构件应该优选具有芯壳结构，其中核心部分的基体和厚度为0.1至2mm的外壳层由本发明的微孔材料形成，核心部分由矩阵形成，并且整个矩阵的直径分布为0.2至2.0mm的孔。

2. 发明授权

US4846838A Prosthetic body for bone substitute and a method for the preparation thereof 失效
标题翻译：骨代用品的假体及其制备方法
公开(公告)号：US4846838A
公开(公告)日：1989-07-11
申请号：US65083
申请日：1987-06-18
申请人： Nobuharu Takai , Hiroyasu Noma , Shoichi Wakabayashi , Susumu Takata
发明人： Nobuharu Takai , Hiroyasu Noma , Shoichi Wakabayashi , Susumu Takata
IPC分类号： A61L27/00 , A61F2/00 , A61F2/28 , A61L27/12 , A61L27/56
CPC分类号： A61F2/28 , A61L27/12 , A61L27/56 , A61F2310/00293
摘要： The inventive prosthetic body for bone substitute is a sintered body of hydroxyapatite and characterized by the open pore structure with a pore diameter in a specified range forming a porosity of 20 to 40% and a bending strength of at least 100 kg/cm.sup.2. The sintered body can be prepared by blending powders of hydroxyapatite and a thermally decomposable substance, e.g. crystalline cellulose, each having a specified particle size distribution, in a specified proportion and shaping and sintering the powder blend.
摘要翻译：用于骨替代物的本发明的修复体是羟基磷灰石的烧结体，其特征在于孔径在特定范围内的开孔结构，其孔隙率为20〜40％，弯曲强度为至少100kg / cm 2。烧结体可以通过将羟基磷灰石和可热分解物质的粉末混合来制备。结晶纤维素，各自具有规定的粒度分布，以规定比例成形并烧结粉末混合物。

3. 发明授权

US5344456A Materials for living hard tissue replacements 失效
公开(公告)号：US5344456A
公开(公告)日：1994-09-06
申请号：US872950
申请日：1992-04-21
申请人： Tohru Nonami , Hiroyasu Noma , Shinya Nakajima
发明人： Tohru Nonami , Hiroyasu Noma , Shinya Nakajima
IPC分类号： A61L27/10 , C04B35/22 , A61F2/28 , A61F2/54 , C04B35/00 , C09K3/00
CPC分类号： A61L27/10 , C04B35/22 , Y10S623/901
摘要： The materials for living hard tissue replacements of the present invention comprise a ceramic material which contain Cao and SiO.sub.2 as essential components, and MgO as an optional components, are substantially free from calcium phosphate and are capable of forming a compound based on calcium phosphate by contact with an aqueous solution containing phosphorus, and show high biological affinity.

4. 发明授权

US5356436A Materials for living hard tissue replacements 失效
标题翻译：生物硬组织替代材料
公开(公告)号：US5356436A
公开(公告)日：1994-10-18
申请号：US872949
申请日：1992-04-21
申请人： Tohru Nonami , Hiroyasu Noma , Shinya Nakajima
发明人： Tohru Nonami , Hiroyasu Noma , Shinya Nakajima
IPC分类号： A61L27/10 , C04B35/22 , A61F2/28
CPC分类号： A61L27/10 , C04B35/22 , Y10S623/901
摘要： The materials for living hard tissue replacements of the present invention comprise a ceramic material which contain Cao and SiO.sub.2 as essential components, and MgO as an optional components, are substantially free from calcium phosphate and are capable of forming a compound based on calcium phosphate by contact with an aqueous solution containing phosphorus, and show high biological affinity.
摘要翻译：本发明的活体硬组织替代物的材料包括含有CaO和SiO 2作为必要组分的陶瓷材料，MgO作为任选的组分，基本上不含磷酸钙，并且能够通过接触形成基于磷酸钙的化合物含有磷的水溶液，并且显示出高生物亲和力。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式