DEVICE AND METHOD OF GUIDE WIRE BALLOON INFLATION AND DEFLATION TO PREVENT CEREBRAL EMBOLIZATION DURING CAROTID STENTING

摘要

The device comprises a guide wire (14) having a lumen (34) inside the guidewire (14). The guide wire (14) has oneend occluded (24), the other end open (36), and has a balloon (20) at theoccluded end (24). A core segment (30) is inserted intothe open end (36) of the guide wire (14), and may be removed from the guidewire (14) when the open end (36) of the guide wire(14) is inside a basin full of normal saline mixed with non-ionic contrastmedia. When the core segment (30) is removed, it creates avacuum inside the lumen (34) of the guide wire (14) which is filledimmediately with the solution. Then, the core segment is gentlyadvanced until the guide wire balloon (20) is fully distended. Through alocking mechanism the core segment is kept in position.Coaxial systems, such as balloon catheter, and stent delivery systems, can beapplied over the guide wire (14) without deflating theguide wire balloon (20).