发明授权
US5965076A Method for fabricating soft tissue implants with microscopic surface
roughness
失效
用于制造具有微观表面粗糙度的软组织植入物的方法
- 专利标题: Method for fabricating soft tissue implants with microscopic surface roughness
- 专利标题(中): 用于制造具有微观表面粗糙度的软组织植入物的方法
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申请号: US936492申请日: 1997-09-22
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公开(公告)号: US5965076A公开(公告)日: 1999-10-12
- 发明人: Bruce A. Banks , Sharon K. Rutledge
- 申请人: Bruce A. Banks , Sharon K. Rutledge
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- 当前专利权人地址: DC Washington
- 主分类号: A61L27/28
- IPC分类号: A61L27/28 ; B29C33/38 ; B29C33/42 ; B29C33/40 ; B05D1/12 ; B05D1/32
摘要:
A method for fabricating soft tissue implants using a mold. The cavity surface of an initially untextured mold, made of an organic material such as epoxy, is given a thin film coating of material that has pinholes and is resistant to atomic particle bombardment. The mold cavity surface is then subjected to atomic particle bombardment, such as when placed in an isotropic atomic oxygen environment. Microscopic depressions in the mold cavity surface are created at the pinhole sites on the thin film coating. The thin film coating is removed and the mold is then used to cast the soft tissue implant. The thin film coating having pinholes may be created by chilling the mold below the dew point such that water vapor condenses upon it; distributing particles, that can partially dissolve and become attached to the mold cavity surface, onto the mold cavity surface; removing the layer of condensate, such as by evaporation; applying the thin film coating over the entire mold surface; and, finally removing the particles, such as by dissolving or brushing it off. Pinholes are created in the thin film coating at the sites previously occupied by the particles.
公开/授权文献
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