Guidewire with shaped intermediate portion

摘要

A guidewire for advancing a medical device such as a catheter through a patient's body lumen which has an elongated core with proximal and distal core sections, a flexible tubular member such as a coil on the distal end and an intermediate portion, preferably formed at least in part by a polymeric sheath proximal to the coil having contact regions and recessed non-contact regions.