Medical articles having regions with polyelectrolyte...

Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Drug delivery

Reexamination Certificate

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C623S023720

Reexamination Certificate

active

07744644

ABSTRACT:
The medical articles which including the following: (a) a ceramic or metallic region whose surface includes a plurality of depressions, (b) a multilayer coating region including multiple polyelectrolyte layers deposited over the surface of the ceramic or metallic region; and (c) a therapeutic agent disposed beneath or within the multilayer coating region. According to another aspect of the present invention, medical articles are provided, which include: (a) a ceramic or metallic region, (b) a multilayer coating region including multiple polyelectrolyte layers deposited over a surface of the ceramic or metallic region, the multilayer coating region including a plurality of protuberances; and (c) a therapeutic agent disposed within regions beneath the protuberances. Also described herein are methods of making such medical articles, and methods of administering a therapeutic agent to a patent using such medical articles.

REFERENCES:
patent: 5735896 (1998-04-01), Amon et al.
patent: 5837377 (1998-11-01), Sheu et al.
patent: 6120535 (2000-09-01), McDonald et al.
patent: 6240616 (2001-06-01), Yan
patent: 6245579 (2001-06-01), Wenz et al.
patent: 6254632 (2001-07-01), Wu et al.
patent: 6306422 (2001-10-01), Batich et al.
patent: 6309660 (2001-10-01), Hsu et al.
patent: 6360129 (2002-03-01), Ley et al.
patent: 6399528 (2002-06-01), Krell et al.
patent: 6506437 (2003-01-01), Harish et al.
patent: 6530951 (2003-03-01), Bates et al.
patent: 6558733 (2003-05-01), Hossainy et al.
patent: 6596699 (2003-07-01), Zamora et al.
patent: 6660034 (2003-12-01), Mandrusov et al.
patent: 6663662 (2003-12-01), Pacetti et al.
patent: 6709379 (2004-03-01), Brandau et al.
patent: 6712845 (2004-03-01), Hossainy
patent: 6753071 (2004-06-01), Pacetti
patent: 6849089 (2005-02-01), Stoll
patent: 6940580 (2005-09-01), Winterton et al.
patent: 7163555 (2007-01-01), Dinh
patent: 7179289 (2007-02-01), Shanley
patent: 2002/0037383 (2002-03-01), Spillman
patent: 2002/0061326 (2002-05-01), Li et al.
patent: 2003/0157260 (2003-08-01), Rubner et al.
patent: 2003/0175517 (2003-09-01), Voigt et al.
patent: 2003/0219909 (2003-11-01), Lally et al.
patent: 2004/0249469 (2004-12-01), Cohen et al.
patent: 2005/0172852 (2005-08-01), Anderson et al.
patent: WO 99/47252 (1999-09-01), None
patent: WO 02/32347 (2002-04-01), None
patent: WO 03/035278 (2003-05-01), None
patent: WO 2005/018501 (2005-03-01), None
Rilling, P.; Pommersheim, Walter R.; Vogt, W. “Encapsulation of cytochrome C by multilayer microcapsules. A model for improved enzyme immobilization”. Journal of Membrane Science vol. 129. 1997. pp. 283-287.
Pommersheim, Rainer; Schrezenmeir, Jurgen; Vogt, Walter. “Immobilization of enzymes by multilayer microcapsules” Macromol. Chem. Phys. vol. 195. 1994. pp. 1557-1567.
Chung, A.J. and Rubner, M.F., Methods of Loading and Releasing Low Molecular Weight Cationic Molecules in Weak Polyelectrolyte Multilayer Films, Langmuir 2002, 18, 1176-1183.
Frank Caruso et al., Microencapsulation of Uncharged Low Molecular Weight Organic Materials by Polyelectrolyte Multilayer Self-assembly,Langmuir2000, 16, 8932-8936.
Gi-Ra, Yi et al., Ordered Macroporous Particles by Colloidal Templating,Chem. Mater.2001, 13, 2613-2618.
Singh, R.S., Grimes, C.A., Dickey, E.C. Fabrication of nanoporous TiO2 films through Bernard-Marangoni convection,Materials Resources Innovations, 2002, 5:178-184.
Chan, V.Z.-H et al. Ordered Bicontinuous Nanoporous and Nanorelief Ceramic Films from Self Assembling Polymer Precursors,Science, Nov. 26, 1999, v286, i5445, p. 1716-1719.
Shchukin, D.G. et al., Micron-Scale Hollow Polyelectrolyte Capsules with Nanosized Magnetic Fe3O4 Inside, Materials Letters 57, 1743-1747, 2003.
Radtchenko, I.L. et al., A Novel Method for Encapsulation of Poorly Water-soluble Drugs: Precipitation in Polyelectrolyte Multilayer Shells, International Journal of Pharmaceutics, 242, 219-223 (2002).
Radtchenko, I.L. et al, .Assembly of Alternated Multivalent Ion/Polyelectrolyte Layers on Colloidal Particles. Stability of the Multilayers and Encapsulation of Macromolecules into Polyelectrolyte Capsules, Journal of Colloid and Interface Science, 230, 272-280 (2000).
Whau, Winky L. et al., Surface-chemistry technology for microfluidics,J. Micromech. Microeng. 13 (2003) 272-278.
Radtchenko et al., Incorporation of macromolecules into polyelectrolyte micro and nanocapsules via surface controlled precipitation on colloidal particles,Colloids and Surfaces A: Physicochemical and Engineering Aspects202 (2002) 127-133.
Moya, S. et al., Polyelectrolyte multilayer capsules templated on biological cells: core oxidation influences layer chemistry,Colloids and Surfaces A: Physicochemical and Engineering Aspects183-185 (2001) 27-40.
Antipov, Alexei A. et al., Polyelectrolyte multilayer capsule permeability control,Colloids and Surfaces A: Physicochemical and Engineering Aspects198-200 (2002) 535-541.
Qiu, Xingping et al.,Studies on the Drug Release Properites of Polysaccharide Multilayers Encapsulated Ibuprofen Microparticles,Langmuir2001, 17, 5375-5380.
Antipov, Alexei A. et al., Sustained Release Properties of Polyelectrolyte Multilayer Capsules,J. Phys. Chem. B2001, 105; 2281-2284, Oct. 27, 2000.
http://www.bmed.mcgill.ca/tabrizian/People—pages/Benjamin2.htm™cOMMUNICATIONS, Thierry, Benjamin, Development of new strategies for endovascular revascularization procedures, 1-7, date unknown but before the filing of this application.
http://people.ccmr.cornell.edu/˜uli/Pages/meso-syn.html, Wiesner Research Group, Synthesis of Mesoporous Materials, 1-2, date unknown but before the filing of this application.
https://engineering.purdue.edu/BME/Seminars/2003/july—14—html, Graduate Seminar, Stent coating for drug delivery: Coating polymeric micelles using polyelectrolytes Purdue University Biomedical Engineering Seminar, 2003, 1-2, Jul. 14, 2003.
http://www.ccmr.cornell.edu/—uli/Pages/mesoporous.html, Wiesner Research Group, Mesoporous Materials Through Self-Esteem, 1-2, date unknown but before the filing of this application.
http://www.hmi.de/people/chemseddine/group.htm, 1-3, date unknown but before the filing of this application.
http://web.mit.edu
ewsoffice
r/1999/gyroid.htm, MIT researcher's intricate ceramic nanostructures have many potential uses, MIT News, 1-3, Nov. 25, 1999.
https://engineering.purdue.edu/ChE/Nano/NanoChmE/NSE—Topical—2001/SynthesisandCharacterizationofNovelNanoporousMaterials2.htm,2001, pp. 1-8.
Dinh, Nam et al., University of Santa Barbara, Magnetic Drug Targeting: A novel use of magnetic fields and magnetic particles to deliver therapeutic drugs at the desired time in the correct dosage to the correct site in the human body, pp. 1-9, date unknown but before the filing of this application.
Berry, Catherine C. et al., Potential Drug-Cell Delivery Routes Using Magnetic Nanoparticles, Centre for Cell Engineering, Glasgow University, European Cells and Materials vol. 6 Suppl. 2, 2003 p. 29.
http://www2.latech.edu/˜ylvov/research/research.htm, Lvov, Yuri M., Nanofabrication of ordered multilayers by alternate absorption of polyions, nanoparticles and proteins: From planar films to microtemplates, Institute for Micromanufacturing, LaTech, Ruston, LA 71272, pp. 1-13, date unknown but before the filing of this application.
B. Thierry, et al., “Bioactive coatings of endovascular stents based on polyelectrolyte multilayers,”Biomacromolecules. Nov.-Dec. 2003;4(6):1564-71.

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