Catheter systems and associated methods

摘要

A catheter system includes a guide catheter defining a proximal lumen and a distal lumen. The catheter system includes an actuator positioned within the proximal lumen, and an extension member positioned within the distal lumen. The catheter system further includes a first spring positioned in the proximal lumen and in contact with the actuator, and a second spring positioned in the distal lumen and in contact with the extension member. The catheter system further includes a cable connected between the actuator and the extension member.