Rapid exchange dilator for sheathless catheter insertion

摘要

A dilator 10 for sheathless access to a patient's blood vessel having a tubular distal member 14 with a scraping portion 24 at the proximal end and a proximal member 16 with a scraping portion 26 at the distal end. . The scraping portions overlap at the transition area 18 to form a rapid exchange port in communication with the lumen 22 of the distal member. The proximal and distal members can be secured to one another by a transition tube 28, which is coaxially disposed on the distal end of the proximal member and the projected circumference of the distal member It extends over the scraping portion of the distal member.