Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Implant or insert
Reexamination Certificate
2006-04-18
2006-04-18
Webman, Edward J. (Department: 1616)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Implant or insert
C424S423000, C514S772100, C427S002120, C427S002240, C427S002280
Reexamination Certificate
active
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).
Elbert Donald L.
Hubbell Jeffrey A.
Winblade Natalie D.
California Institute of Technology
Pabst Patent Group LLP
Webman Edward J.
LandOfFree
Methods and compositions to prevent formation of adhesions... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and compositions to prevent formation of adhesions..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and compositions to prevent formation of adhesions... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3526861