First-in-Human Evaluation of the Safety and Efficacy of a Novel Stent Positioning Assistance System for Precise Positioning of Coronary Stents

Figure 2

SPAS usability. SPAS support all coronary stent delivery systems. By introducing the stent from the back of the SPAS through the central main tunnel before the rapid exchange system is advanced over the coronary wire and the stent is introduced to the lesion in the coronary artery. While fixating the SPAS and the guide wire (with the thumb and index finger on the “fixator”, the “locker” is rotated until a click is felt), in order to tightly secure the SPAS on to the stent delivery system. Rather than pushing and pulling the stent inside the artery, the stent can be moved forward and backward to the accurate location by rotation of the “rotator”; clockwise drives the stent forward, and counterclockwise retracts the stent. At any point in which the operator does not feel comfortable or needs to proceed in the classic way, the “locker” is released and manual positioning can take place within seconds.