Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2004-02-20
2009-02-03
Jiang, Shaojia Anna (Department: 1623)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
C536S123000, C514S054000
Reexamination Certificate
active
07485719
ABSTRACT:
A crosslinkable polysaccharide derivative which has in the side chain of polysaccharide at least one active ester group reactive with an active hydrogen-containing group and which forms a crosslinked product through covalent bond between the active ester group and the active hydrogen-containing group upon contact with alkaline water. A composition and a medical treatment material containing the crosslinkable polysaccharide derivative. The crosslinkable polysaccharide derivative produces a high bond strength that meets clinical requirements. It avoids the risk of infection because it is based on a material which is not derived from living organisms. It in itself and its decomposition products have a low level of toxicity because it is formed from a synthetic material. It is biodegradable and bioabsorbable. It can be prepared readily and simply without requiring special apparatus at the time of use.
REFERENCES:
patent: 5676964 (1997-10-01), Della Valle et al.
patent: 5874500 (1999-02-01), Rhee et al.
patent: 5912007 (1999-06-01), Pan et al.
patent: 6083708 (2000-07-01), Singh et al.
patent: 6312725 (2001-11-01), Wallace et al.
patent: 6323278 (2001-11-01), Rhee et al.
patent: 6770725 (2004-08-01), Santerre
patent: 2004/0091540 (2004-05-01), Desrosiers et al.
patent: 89/10941 (1989-11-01), None
patent: 2-504163 (1990-11-01), None
patent: 2002-80501 (2002-03-01), None
patent: 2002-529549 (2002-09-01), None
patent: 2002-529550 (2002-09-01), None
patent: 95/24429 (1995-09-01), None
Luo et al., “Hyaluronic acid N-Hydroxysuccinimide: A Useful Intermediate for Bioconjugation” Bioconjugate Chemistry (2001) vol. 12, pp. 1085-1088.
Machine translation of foreign application JP2002-080501 (Jinzo et al.) Translated by the Industrial Property Digital Library at http://www.ipdl.inpit.go.jp/homepg—e.ipdl.
Zumdahl, S., Chemical Principles, published 1995 by D. C. Health and Company, p. 241.
J. Milton Harris et al., “Synthesis of New Poly(Ethylene Glycol) Derivatives”, Poly(Ethylene Glycol) Chemistry, 1992, pp. 371-381, Department of Chemistry, University of Alabama, Huntsville, AL (cited in specification).
Ronald L. Schnaar et al., “Polyacrylamide Gels Copolymerized With Active Esters, A New Medium for Affinity Systems”, Biochemistry, 1975, vol. 14, No. 7, pp. 1535-1541 (cited in specification).
Abe Yoshihiko
Anzai Takao
Buchanan & Ingersoll & Rooney PC
Jiang Shaojia Anna
Olson Eric S
Terumo Kabushiki Kaisha
LandOfFree
Crosslinkable polysaccharide derivative, process for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Crosslinkable polysaccharide derivative, process for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crosslinkable polysaccharide derivative, process for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4081162