Artificial tubular organ
Patent 5236447 Issued on August 17, 1993. Estimated Expiration Date: 
June 28, 2011. 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.
June 28, 2011. 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 ReferencesDevice for application in blood vessels or other difficultly accessible locations and its use Arterial graft prosthesis Endoprosthesis for repairing a damaged vessel Synthetic semiabsorbable tubular prosthesis Patent #: 4990158 InventorsAssigneeApplicationNo. 723251 filed on 06/28/1991US Classes:623/1.13, Stent in combination with graft623/1.38, Absorbable in natural tissue623/1.39, Having pores623/1.48ProteinExaminersPrimary: Isabella, David J.Assistant: Brittingham, Debra S. Attorney, Agent or FirmForeign Patent References
International ClassA61F 002/06Foreign Application Priority Data1990-06-29 JPAbstractAn artificial tubular organ composed of a tubular supporting frame made of a plastic material which is provided on at least one surface therefore with a medical prosthetic material. The supporting frame is composed of a plurality of ring portions arranged on an axis, and a plurality of pairs of connecting portions extending between adjacent two ring portions so as to connect them to each other, every other pair of the connecting portions being diametrically arranged on the ring portions, the remaining pairs of the connecting portions being arranged such that a plane containing their center lines is perpendicular to a plane containing the center lines of pairs of diametrically arranged connecting portions. The medical prosthetic material may be a woven fabric, a knitted fabric, a nonwoven fabric, or a combination thereof. Preferred fabric includes absorbable macromolecular yarns and nonabsorbable macromolecular yarns.Other References
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