Patent ID: 9259552
Filing Date: 2016-02-16
CPC Classification: A61M

Claim Text:
1. A catheter comprising: a. a first lumen for receiving a guidewire and having an exit opening at a distal tip of the catheter; b. a second lumen, adjacent the first lumen and separated from the first lumen by a common wall, the second lumen configured for receiving contrast fluid, wherein perforations are formed in the common wall, the perforations each being defined by flexible leaves which are configured to flex between a first normally open position in which the leaves extend into the first lumen to open the perforations to fluid flow, and a second position in which the leaves close the perforations to fluid flow; c. a guidewire in the first lumen, the guidewire being configured to be capable of advancement distally to extend out of the exit opening, the guidewire having two conditions: