Method for making a molded calcium phosphate article
AssigneeCalcitec, Inc.
InventorsJiin-Huey Chern Lin, Chien-Ping Ju, Chih-Hung Tsai
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Abstract
The present invention discloses a method for making a molded calcium phosphate article including impregnating a rigid shaped article of calcium phosphate in an impregnating liquid for a period of time so that a compressive strength of the resulting impregnated article removed from the impregnating liquid is increased compared to that of the rigid shaped article. The molded calcium phosphate article made according to the present invention may be used as a medical implant or a reinforcing constituent of a composite.
Claims32
A method for making a molded calcium phosphate article comprising impregnating a rigid shaped article of calcium phosphate with an impregnating liquid for a period of time so that a compressive strength of the resulting impregnated article removed from the impregnating liquid is increased compared to that of said rigid shaped article without said impregnating treatment, wherein the rigid shaped article of calcium phosphate is a molded article from a paste of calcium phosphate cement.
A method for making a molded calcium phosphate article comprising the following steps:
- (a) preparing a powder comprising at least one Ca source and at least one P source, or at least one calcium phosphate source;
- (b) mixing said powder with a setting liquid to form a paste, wherein said paste undergoes a hardening reaction;
- (c) molding said paste into an article in a mold of a desired shape and size before said hardening reaction is complete;
- (d) impregnating the resulting hardened article from step (c) with an impregnating liquid to allow strength of said article to increase;
- and
- (e) removing said article from said impregnating liquid.
Dependencies are inferred from the claim text.