A fully exchangeable low-profile single-lumen dual-balloon catheter for embolectomy, dilatation, occlusion, and infusion of treatment fluid, and having an integrated guide wire, includes a flexible small diameter guide wire provided with an distal end valving portion of comparatively enlarged diameter...http://www.google.com/patents/US5320604?utm_source=gb-gplus-sharePatent US5320604 - Low-profile single-lumen dual-balloon catheter with integrated guide wire for embolectomy dilatation/occlusion and delivery of treatment fluid