... of catheter to distal end target location foreign body locates, encircle, string and grasp foreign body, then move or take out it ... .2.Tungsten snare loop provides excellent radiopacity, allows for flexible exchange. Basic product structureConsisted of shaft, guide wire, protective sleeve ... 3)Snare can be circle to 90°, easy to grasp foreign body and excellent to develop. Applied scopeSnare can be used ...