Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials
Reexamination Certificate
2007-01-16
2007-01-16
Theisen, Mary Lynn (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Of inorganic materials
C264S049000, C264S086000, C264S333000
Reexamination Certificate
active
10780728
ABSTRACT:
The present invention discloses a method for making a porous calcium phosphate article including i) preparing a shaped article from a paste containing a calcium phosphate cement, a pore-forming powder and a setting liquid; ii) immersing the shaped article in an immersing liquid for a period of time so that the pore-forming powder is dissolved in the immersing liquid, creating pores in said shaped article; and iii) removing the resulting porous shaped article from the immersing liquid, wherein the resulting porous shaped article has an improved compressive strength. The porous shaped calcium phosphate article of the present invention may be used as a tissue-engineered scaffold, medical implant or a reinforcing constituent of a composite.
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Chao Chung-Po
Chern Lin Jiin-Huey
Ju Chien-Ping
Ning Chao-Chin
Tien Yin-Chun
Calcitec, Inc.
Meyertons Eric B.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Theisen Mary Lynn
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