What is disclosed is a stent delivery system comprising an inflation shaft having an expandable balloon sealingly mounted at the distal end thereof and a tubular sheath having the inflation shaft longitudinally running therethrough. The tubular sheath has an expandable sheath at the distal end thereof...http://www.google.fr/patents/US5951569?utm_source=gb-gplus-shareBrevet US5951569 - Stent delivery system
