Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2004-07-14
2009-02-10
Yoon, Tae H (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S205000
Reexamination Certificate
active
07488761
ABSTRACT:
An implant composition having controlled resorption rate in vivo for stimulating bone growth, a method of making the implant composition, and a kit of implant materials are disclosed. The implant composition includes a calcium sulfate compound, polymer containing particles, and a setting agent. The polymer is one or more poly(desaminotyrosyl-tyrosine alkyl ester carbonate). Upon setting, the calcium sulfate compound forms a matrix and the polymer containing particles settled within the matrix. The resorption rate of the implant composition in vivo can be controlled of between eight and twenty-four weeks, which substantially matches the rate of bone growth. The implant composition of the present invention can be used for the repair, augmentation, and other treatment of bone.
REFERENCES:
patent: 5085861 (1992-02-01), Gerhart et al.
patent: 5188654 (1993-02-01), Manalastas et al.
patent: 5747390 (1998-05-01), Cooper et al.
patent: 6224635 (2001-05-01), Ricci et al.
patent: 6500223 (2002-12-01), Sakai et al.
patent: 6770695 (2004-08-01), Ricci et al.
patent: 2006/0204586 (2006-09-01), Alexander et al.
patent: 03816138 (1989-11-01), None
patent: 29809124 (1999-09-01), None
Tangpasuthadol et al. Hydrolytic degradation of Tyrosine-derived polycarbonates, a class of new biomaterials. Biomaterials vol. 21, Issue 23, Dec. 1, 2000.
Bourke, et al. Polymers derived from the amino acid tyrosine: polycarbonates, polyarylates and copolymers with poly(ethylene glycol). Advanced Drug Delivery Reviews, vol. 55, Issue 4, Apr. 25, 2003.
Choueka, et al. Canine bone response to tyrosine-derived polycarbonates and poly (L-lactic acid). 1:J Biomed Mater Res. May 1996; 31 (1):35-41.
James et al. Small changes in polymer chemistry have a large effect on the bone-implant interface: Evaluation of a series of degradable tyrosine-derived polycarbonates in bone defects. 1: Biomaterials. 1999; Dec;20(23-24) 2203-12.
Alexander Harold
Hollander Bruce
Ricci John L.
Li Yi
Orthogen LLC
Silverman Melvin K.
Yoon Tae H
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