Catheter with adjustable guidewire exit position

摘要

Novel catheter systems including those having guidewire lumens that can convert from an Over-the-Wire mode to a Rapid Exchange mode are useful and effective when crafted such that this conversion happens without adjusting the position of the guidewire in a body lumen.

主权项

1. A catheter system, comprising:
a catheter comprising a guidewire lumen configured to convert from an Over-the-Wire mode to a Rapid Exchange mode, and a slit at least partially along the guidewire lumen; a guidewire configured to be inserted within the guidewire lumen of the catheter; and an ejector wire configured to push the guidewire out of the slit at least partially along the guidewire lumen without adjusting a lateral position of the guidewire in a body lumen, wherein the ejector wire and the guidewire lumen have similar noncircular cross-sectional profiles.