Drug delivery collagen-impregnated synthetic vascular graft
Patent 5197977 Issued on March 30, 1993. Estimated Expiration Date: 
April 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 30, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3272204 3425418 3928653 Double-velour synthetic vascular graft Blood vessel prosthesis Method for forming impregnated synthetic vascular grafts Patent #: 4842575 InventorsAssigneeApplicationNo. 877344 filed on 04/30/1992US Classes:623/1.45, Impregnation427/2.25, Liquid conveying (e.g., vascular, arterial, bile duct, urethra)623/1.39, Having pores623/1.42, Drug delivery623/1.47, Collagen623/1.5, Knitted623/1.52Velour surfaceExaminersPrimary: Isabella, David J.Attorney, Agent or FirmForeign Patent References
International ClassB61F 002/06AbstractA collagen impregnated vascular graft including drug materials complexed with the collagen to be released slowly from the graft following implant. The graft is a porous synthetic vascular graft substrate having collagen fixed to the graft substrate and cross-linking the collagen in situ to render the porous substrate blood-tight. The drug materials complexed with the collagen fibrils may include antithrombic agents, antibacterial, antimicrobial agents, antifungal agents and the like. | |
