Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Particulate form
Reexamination Certificate
2011-07-05
2011-07-05
Azpuru, Carlos (Department: 1617)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Particulate form
C424S501000
Reexamination Certificate
active
07972628
ABSTRACT:
The invention provides porous biomaterials and methods for forming porous biomaterials. The porous biomaterials of the invention comprise a biocompatible polymer scaffold defining an array of pores, wherein substantially all the pores have a similar diameter, wherein the mean diameter of the pores is between about 20 and about 90 micrometers, wherein substantially all the pores are each connected to at least 4 other pores, and wherein the diameter of substantially all the connections between the pores is between about 15% and about 40% of the mean diameter of the pores. The invention also provides implantable devices comprising a layer of a biomaterial, and methods for promoting angiogenesis in and around an implantable biomaterial.
REFERENCES:
patent: 5410016 (1995-04-01), Hubbell
patent: 5681572 (1997-10-01), Seare, Jr.
patent: 6261585 (2001-07-01), Sefton
patent: 6471993 (2002-10-01), Shastri
patent: 6656496 (2003-12-01), Kilpadi
patent: 6702848 (2004-03-01), Zilla
patent: 6702857 (2004-03-01), Brauker
patent: 7192450 (2007-03-01), Brauker
patent: 00/34454 (2000-06-01), None
patent: 01/05333 (2001-01-01), None
“Thermoplastic polymers”, Wkikipedia.com, Aug. 11, 2010.
Borden, M., et al., “Tissue Engineered Microsphere-Based Matrices for Bone Repair: Design and Evaluation,” Biomaterials 23(2):551-559, Jan. 2002.
Brauker, J.H., et al., “Neovascularization of Synthetic Membranes Directed by Membrane Microarchitecture,” Journal of Biomedical Materials Research 29(12):1517-1524, Dec. 1995.
Supplementary International Search Report mailed Oct. 20,2009, issued in corresponding International Application No. PCT/US2004/032639, filed Oct. 1, 2004.
Sharkawy, A.A., “Engineering the Tissue Which Encapsulates Subcutaneous Implants,” Journal of Biomedical Materials Research 40(4):586-597, Jun. 1998.
Bezuidenhout, D., et al., “Effect of Well Defined Dodecahedral Porosity on Inflammation and Angiogenesis,” ASAIO (American Society for Artificial Internal Organs) Journal 48(5):465-471, Sep./Oct. 2002.
Communication Pursuant to Article 94(3) EPC mailed Feb. 15, 2011, issued in corresponding European Patent Application No. 04 794 111.7, filed Oct. 1, 2004, 5 pages.
Clubb, Jr., F.J., et al., “Surface Texturing and Coating of Biomaterial Implants: Effects on Tissue Integration and Fibrosis,” ASAIO [American Society of Artificial Internal Organs] Journal 45(4):281-287, Jul.-Aug. 1999.
Marshall Andrew
Ratner Buddy D.
Azpuru Carlos
Christensen O'Connor Johnson & Kindness PLLC
University of Washington
LandOfFree
Porous biomaterials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Porous biomaterials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porous biomaterials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2684152