CRUSH RECOVERABLE POLYMER SCAFFOLDS

摘要

PROBLEM TO BE SOLVED: To develop a prosthesis sufficiently resilient to recover from a pinching or crushing load in a peripheral blood vessel, in addition to other loading events expected within a peripheral blood vessel, the events being not experienced by a coronary scaffold.SOLUTION: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold is deployed by the balloon and provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.