Becton, Dickinson and Company
CONCENTRIC CATHETERS AND RELATED SYSTEMS AND METHODS

Abstract:

A catheter system may include an outer catheter adapter, an outer catheter having an outer catheter lumen extending through the outer catheter, and an inner surface forming the outer catheter lumen. The catheter system may further include an inner catheter adapter, an inner catheter lumen extending through the inner catheter adapter and an inner catheter extending distally from the inner catheter adapter such that the inner catheter is disposed within the outer catheter lumen and the inner catheter and the inner catheter adapter are configured to move with respect to the outer catheter and the outer catheter adapter between a proximal position and a distal position.