The present invention pertains to a stiffened balloon which can be used in angioplasty, endovascular, and valvuloplasty procedures or as a delivery balloon to deliver a stent or a stent-graft. Longitudinally discontinuous stiffening members connected to the expandable balloon stiffen the balloon but...http://www.google.se/patents/US6942680?utm_source=gb-gplus-sharePatent US6942680 - Stiffened balloon catheter for dilatation and stenting