Biodegradable porous devices for tissue engineering
    1.
    发明申请
    Biodegradable porous devices for tissue engineering 审中-公开
    用于组织工程的生物可降解多孔装置

    公开(公告)号:US20030072790A1

    公开(公告)日:2003-04-17

    申请号:US09982565

    申请日:2001-10-16

    Abstract: A biodegradable porous device for tissue engineering is disclosed, which comprises (A) a porous polymeric scaffold comprising a co-continuous phase of a first biodegradable polymer and a second biodegradable polymer which are incompatible with each other, wherein the first biodegradable polymer contains a continuous network of large, interconnected pores, and the second biodegradable polymer contains small, partially interconnected pores; (B) a biodegradable polymer fiber dispersed in, and compatible with the matrix of the first biodegradable polymer; and optionally (C) an active ingredient provided in the polymeric scaffold.

    Abstract translation: 公开了用于组织工程的可生物降解的多孔装置,其包括(A)包含彼此不相容的第一可生物降解聚合物和第二可生物降解聚合物的共连续相的多孔聚合物支架,其中所述第一可生物降解聚合物包含连续 大的相互连通的孔的网络,第二可生物降解的聚合物包含小的部分互连的孔; (B)分散在第一可生物降解的聚合物基质中并与其相容的可生物降解的聚合物纤维; 和任选地(C)在聚合物支架中提供的活性成分。

    Method of making porous biodegradable polymers
    3.
    发明申请
    Method of making porous biodegradable polymers 失效
    制造多孔生物可降解聚合物的方法

    公开(公告)号:US20030064156A1

    公开(公告)日:2003-04-03

    申请号:US09947182

    申请日:2001-09-04

    Abstract: A method of making a porous biodegradable polymer is disclosed, which comprises (a) placing a biodegradable polymer and a solvent in a chamber; (b) adding a supercritical fluid to the chamber and maintaining the chamber at a predetermined temperature for a sufficient period of time to allow the supercritical fluid to dissolve into the biodegradable polymer with the help of the solvent; and (c) venting the supercritical fluid and the solvent by reducing the pressure in the chamber, thereby obtaining a porous biodegradable polymer.

    Abstract translation: 公开了制备多孔生物可降解聚合物的方法,其包括(a)将可生物降解的聚合物和溶剂置于室中; (b)将超临界流体加入到室中并将室维持在预定温度足够的时间以允许超临界流体借助溶剂溶解到可生物降解的聚合物中; 和(c)通过降低室中的压力来排出超临界流体和溶剂,从而获得多孔生物可降解聚合物。

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