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Generated: July 23, 2019

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Patent: 5,851,833

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Summary for Patent: 5,851,833
Title: Neomorphogenesis of urological structures in vivo from cell culture
Abstract:Methods and artificial matrices for the growth and implantation of urological structures and surfaces are disclosed in which urothelial cells are grown in culture on biodegradable, biocompatible, fibrous matrices formed of polymers, such as polyglycolic acid, polylactic acid, or other polymers which degrade over time. The cells can be cultured in vitro until an adequate cell volume and density has developed for the cells to survive and proliferate in vivo. Alternatively, when adequate cell numbers for implantation are available, the cells can be attached to the matrix and implanted directly, without proliferation in vitro. The implants approximate the desired urological structure to be replaced or repaired, such as the kidney, urether, bladder, urethra, and the like. Implantation is followed by remodeling through cell growth and proliferation in vivo. In another aspect of the invention, techniques are disclosed for selectively extracting or harvesting urothelial cells either from excised urological tissue in vitro or from intact urological tissue in vivo by treating the tissue with a digestive enzyme, such as collagenase.
Inventor(s): Atala; Anthony (Newton, MA)
Assignee: Children\'s Medical Center Corp. (Boston, MA)
Application Number:08/692,243
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 5,851,833
Patent Claims:see list of patent claims

Details for Patent 5,851,833

Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Patent Expiration Status Orphan Source
Advance Biofactures SANTYL collagenase VIAL 101995 001 1965-06-04 ➤ Sign Up Children\'s Medical Center Corp. (Boston, MA) ➤ Sign Up RX search
Applicant Tradename Biologic Ingredient Dosage Form BLA Number Approval Date Patent No. Assignee Patent Expiration Status Orphan Source

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International Patent Family for US Patent 5,851,833

Country Patent Number Publication Date
World Intellectual Property Organization (WIPO) 8803785 Jun 02, 1988
World Intellectual Property Organization (WIPO) 9012603 Nov 01, 1990
World Intellectual Property Organization (WIPO) 9012604 Nov 01, 1990
World Intellectual Property Organization (WIPO) 9307913 Apr 29, 1993
World Intellectual Property Organization (WIPO) 9308850 May 13, 1993
Country Patent Number Publication Date

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