Methods and compositions to prevent formation of adhesions...

Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert

Reexamination Certificate

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C424S423000, C514S772100, C427S002120, C427S002240, C427S002280

Reexamination Certificate

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07029688

ABSTRACT:
The invention discloses materials that adsorb readily to the surfaces of body tissues in situ and provide a steric barrier between such tissues, so that tissue adhesions, which typically form following surgical procedures, are minimized. These materials contain a polymer of hydrophilic molecules such as polyethylene glycol (PEG) bound to a polymer that spontaneously adsorbs to biological tissue such as phenylboronic acid (PBA). The PEG-PBA co-polymer can be formed in a variety of geometries. The materials can also be used to coat prosthetics and other implants.

REFERENCES:
patent: 4111863 (1978-09-01), Wulff et al.
patent: 4409391 (1983-10-01), Broadhurst et al.
patent: 4886924 (1989-12-01), Goralski et al.
patent: 5240602 (1993-08-01), Hammen et al.
patent: 5312959 (1994-05-01), Sieja et al.
patent: 5578442 (1996-11-01), Desai et al.
patent: 5594042 (1997-01-01), Glover et al.
patent: 5624762 (1997-04-01), Glover et al.
patent: 5644019 (1997-07-01), Po′ et al.
patent: 5691292 (1997-11-01), Marshall et al.
patent: 5908624 (1999-06-01), Scott et al.
patent: 6129912 (2000-10-01), Hortin et al.
patent: 6312685 (2001-11-01), Fisher et al.
patent: WO 97/28254 (1997-08-01), None
Adamyan, et al., “Use of fibrin glue in obstetrics and gynecology: a review of the literature,” Int. J. Fertil. 36: 76-88 (1991).
Aoki, et al., “Endothelial cell differentiation into capillary structures by copolymer surfaces with phenylboronic acid groups,” J. Biomater. Sci. 7: 539-550 (1995).
Apple, et al., “Posterior capsule opacification,” Survey Ophthalmol. 37: 73-116 (1992).
Burns, et al., “A hyaluronate based gel for the prevention of postsurgical adhesions: evaluation in two animal species,” Fertility and Sterility 66(5): 814-821 (1996).
Claesson, et al., “Direct measurements of steric interactions between mica surfaces covered with electrostatically bound low-molecular-weight polyethylene oxide,” J. Colloid Interface Sci. 117: 366-374 (1986).
De Iaco, et al., “Fibrin sealant in laparoscopic adhesion prevention in the rabbit uterine horn model,” Fertility and Sterility 62: 400-404 (1994).
Desai, et al., “Tissue response to intraperitoneal implants of polyethylene oxide-modified polyethylene terephthalate,” Biomaterials 13: 505-510 (1992).
Dizerega, “Contemporary adhesion prevention” Fertility and Sterility 61: 219-235 (1994).
Dunn, et al,. “Polystyrene-poly (ethylene glycol) (PS-PEG2000) particles as model systems for site specific drug delivery. 2. The effect of PEG surface density on the in vitro cell interaction and in vitro biodistribution,” Pharm. Res. 11: 1016-1022 (1994).
Elbert, et al., “Self-assembly and steric stabilization at hetereogneous, biological surfaces using absorbing block copolymers,” Chemistry and Biology 5: 177-183 (1998).
Elbert, et al., “Reduction of fibrous adhesion formation by a copolymer possessing an affinity for anionic surfaces,” J. Biomed. Mater. Res. 42(1): 55-65 (1998).
Hanahan, “Signaling vascular morphogenesis and maintenance,” Science 277: 48-60 (1997).
Holtz, “Prevention and management of peritoneal adhesions,” Fertility and Sterility 41: 497-507 (1984).
Hubbell, et al., “Endothelial cell-selective materials for tissue engineering in the vascular graft via a new receptor” Bio/Technology 9: 568-572 (1991).
James, et al., “A saccharide ‘sponge.’ Synthesis and properties of a dendritic boronic acid,” Chem. Comm. 6: 705-706 (1996).
Kimura, et al., “Sugar-induced conformational changes in boronic acid-appended poly(L- and D-lysine)s and sugar-controlled orientation of a cyanine dye on the polymers,” J. Chem. Soc. Perkin Trans. 2 10: 1884-1894 (1995).
Liu, et al., “New ligands for boronate affinity chromatography,” J. Chromatography A 687: 61-69 (1994).
Malan, et al., “Synthesis of 4-borono-L-phenylalanine,” Synlett 2: 167-168 (1996).
Miyazaki, et al., “Boronate-containing polymer as novel mitogen for lymphocytes,” Biochem. Biophys. Res. Comm. 195: 829-836 (1993).
Ohadi, et al., “Posterior capsule opacification,” Curr. Opin. Ophthalmol. 2: 46-52 (1991).
Pale-Grosdemange, et al., “Formation of self-assembled monolayers by chemisorption of derivatives of oligo(ethylene glycol) of structure HS(CH2)11(OCH2CH2)mOH on gold,” J. Am. Chem. Soc. 113: 12-20 (1991).
Rice, et al., “A comparative evaluation of Poloxamer 407 and oxidized regenerated cellulose (Interceed [TC7]) to reduce postoperative adhesion formation in the rat uterine horn model,” Fertility and Sterility 59: 901-906 (1993).
Shiino, et al., “Amine effect on phenylboronic acid complex with glucose under physiological pH in aqueous solution,” J. Biomater. Sci. 7: 697-705 (1996).
Shiino, et al., “A self-regulated insulin delivery system using boronic acid gel,” J. Intelligent Mater. Syst. Struct. 5: 311-314 (1994).
Shiino, et al., “Preparation and characterization of a glucose—responsive insulin-releasing polymer device,” Biomaterials 15(2): 121-128 (1994).
Singhal, et al., “Boronate affinity chromatography,” in Advances in Chromatography (Giddings,et al., ed.) 31:293-335 (1992).
Singhal, et al., “New ligands for boronate affinity chromatography: synthesis and properties,” J. Chromatography 543: 17-38 (1991).
Steinleitner, et al,. “An evaluation of flowgel as an intraperitoneal barrier for prevention of postsurgical adhesion reformation,” Fertility and Sterility 57: 305-308 (1992).
West, et al., “Comparison of covalently and physically cross-linked polyethylene glycol-based hydrogels for the prevention of postoperative adhesions in a rat model,” Biomaterials 16: 1153-1156 (1995).
Wulff, “Selective binding to polymers via covalent bonds. The construction of chiral cavities as specific receptor sites” Pure and Applied Chemistry 54: 2093-2102 (1982).

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