Chemistry: molecular biology and microbiology – Differentiated tissue or organ other than blood – per se – or...
Reexamination Certificate
2011-06-07
2011-06-07
Davis, Ruth A (Department: 1651)
Chemistry: molecular biology and microbiology
Differentiated tissue or organ other than blood, per se, or...
C424S423000
Reexamination Certificate
active
07955789
ABSTRACT:
An object of the present invention is to provide an adhesion-preventing material which is capable of effectively preventing the surfaces of organs from adhesion, and which can be absorbed in the body with high safety and produced with ease and has high practical utility, as well as to a process for preventing adhesion by using the adhesion-preventing material.The present invention provides (1) an adhesion-preventing material comprising a crosslinked water absorbent poly-γ-glutamic acid as an effective ingredient; (2) the adhesion-preventing material described above, wherein the crosslinked water absorbent poly-γ-glutamic acid is in the form of powder having a water absorption coefficient in the range of 800-2000; (3) a process for preventing organ from adhesion, comprising a step of bringing the adhesion-preventing material described above into contact with the surface of a local organ; and (4) the process for preventing adhesion described above, wherein the surface of the local organ is in wet state.
REFERENCES:
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patent: 5854381 (1998-12-01), Jürgens et al.
patent: 2002/0197296 (2002-12-01), Gen
patent: 2003/0091646 (2003-05-01), Gen
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U.S. Appl. No. 12/227,379.
English translation of JP 6-322358 (corresponds to reference “AM” on Information Disclosure Statement filed Apr. 26, 2007).
English translation of JP 11-276572 (corresponds to reference “AI” on Information Disclosure Statement filed Apr. 26, 2007).
Izumi Yotaro
Kawamura Masafumi
Kobayashi Koichi
Davis Ruth A
Keio University
Meiji Seika Kaisha Ltd.
Wenderoth , Lind & Ponack, L.L.P.
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