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 guide wire (14). The guide wire (14) has one end occluded (24), the other end open (36), and has a balloon (20) at the occluded end (24). A core segment (30) is inserted into the open end (36) of the guide wire (14), and may be removed from the guide wire (14) when the open end (36) of the guide wire (14) is inside a basin full of normal saline mixed with non-ionic contrast media. When the core segment (30) is removed, it creates a vacuum inside the lumen (34) of the guide wire (14) which is filled immediately with the solution. Then, the core segment is gently advanced until the guide wire balloon (20) is fully distended. Through a locking mechanism the core segment is kept in position. Coaxial systems, such as balloon catheter, and stent delivery systems, can be applied over the guide wire (14) without deflating the guide wire balloon (20).