Ion beam modification of bioactive ceramics to accelerate biointegration of said ceramics
    1.
    再颁专利
    Ion beam modification of bioactive ceramics to accelerate biointegration of said ceramics 失效
    离子束修饰生物活性陶瓷以加速所述陶瓷的生物整合

    公开(公告)号:USRE37718E1

    公开(公告)日:2002-05-28

    申请号:US08820813

    申请日:1997-04-02

    IPC分类号: A61F228

    摘要: The present invention provides for faster and stronger tissue-implant bonding by treating a ceramic implant with an ion beam to modify the surface of the ceramic. The surface modification can give the ceramic improved ion-exchange properties depending upon the particular ceramic and the type of ions used. In a preferred embodiment, a bioactive ceramic orthopaedic, dental, or soft tissue implant is bombarded with a beam of cations. When implanted in the body, the surface modification causes an increase in the release of critical ions, such as calcium or phosphorus, from the surface of the ceramic implant, and thereby accelerates implant-tissue bond formation.

    摘要翻译: 本发明通过用离子束处理陶瓷植入物来改变陶瓷的表面来提供更快和更强的组织植入物结合。 根据具体的陶瓷和使用的离子类型,表面改性可以提供陶瓷提高的离子交换性能。 在优选的实施方案中,用阳离子束轰击生物活性陶瓷整形外科,牙科或软组织植入物。 当植入体内时,表面改性导致从陶瓷植入物的表面释放关键离子(例如钙或磷),从而加速植入物组织结合形成。

    Nonantigenic keratinous protein material
    10.
    发明授权
    Nonantigenic keratinous protein material 失效
    非抗原性角质蛋白材料

    公开(公告)号:US5358935A

    公开(公告)日:1994-10-25

    申请号:US978768

    申请日:1992-11-19

    摘要: The present invention is a new nonantigenic keratinous protein material that may be used as a number of purposes, including correction of soft tissue deficiencies and the creation of biomedical implants and implant coatings. The present invention also includes processes for using the nonantigenic keratinous protein material for soft tissue augmentation, creating implants, and the coating of biocompatible implants. The nonantigenic keratinous protein material can be formed by obtaining nonantigenic keratinous protein and processing it to a powder form. If hair from the recipient or a compatible doner is used, it is bleached and rinsed, then dried and chopped into about 0.25 inch pieces. The keratinous protein is then homogenized in a solvent to a particular size generally in the range of about 0.1 to about 500 .mu.m. The particles are then ultrasonicated in a solvent. Afterwards, the solvent is evaporated, and the powdered protein is sterilized and suspended in a sterile bioinert solvent to create a protein colloid at a solids concentrations suitable for injection.

    摘要翻译: 本发明是一种新的非抗原性角质蛋白材料,其可用作许多目的,包括矫正软组织缺陷以及生物医学植入物和植入物涂层的产生。 本发明还包括使用非抗原角质蛋白材料用于软组织增加,产生植入物和生物相容性植入物的包衣的方法。 非抗原角化蛋白质材料可以通过获得非抗原角化蛋白质并将其加工成粉末形式来形成。 如果使用来自接收者的头发或使用相容的发丝器,则将其漂白并漂洗,然后干燥并切碎成约0.25英寸的片。 然后将角质蛋白质在溶剂中均化至一般在约0.1至约500μm范围内的特定尺寸。 然后将颗粒在溶剂中超声波处理。 然后蒸发溶剂,将粉状蛋白质灭菌并悬浮于无菌生物惰性溶剂中以产生适于注射的固体浓度的蛋白质胶体。