Patent ID: 8323351
Filing Date: 2012-12-04
Classification: A61F,A61L

Abstract:
1. A self-expanding plastic esophageal stent, consisting of a heat treated plastic monofilament braided into a tubular body forming an esophageal stent, the tubular body having a length of about 60 mm, a diameter of about 16 mm, and a flared end having a diameter of about 25 mm, the tubular body being resilient, the plastic monofilament has a diameter between 0.2 mm and 0.7 mm, whereby the stent is compressible for insertion by a delivery system into a tubular body structure and expands to prevent constriction of the tubular body structure after implantation, wherein the plastic monofilament comprises: a monofilament made from at least one resin selected from the group consisting of polyetheretherketone (PEEK), polyetherketone (PEK), polyetherketoneketone (PEKK), polyaryletherketone (PAEK), polyetherketoneether-ketoneketone (PEKEKK); and a polymer film at least partially covering the monofilament, the polymer film being a biodegradable polymer.