Method and system to prevent complete obstruction in catheter in case of a kink

摘要

A medical device comprising a shaft having a kink radius; a tube disposed within the shaft; a fluid source in fluid communication with the tube; an elongate member disposed within the tube, and the elongate member imparting a kink radius on the tube, the imparted kink radius of the tube being larger than the kink radius of the shaft.

主权项

1. A medical device comprising:
a shaft having a kink radius; a tube disposed within the shaft, the tube defining a lumen having an inner surface a diameter; a fluid source in fluid communication with the tube lumen; and a coiled elongate member disposed within the tube lumen and at least a portion of the coiled elongate member being in contact with the inner surface of the tube, the coiled elongate member having an outer diameter that is less than the diameter of the tube lumen, the coiled elongate member being coaxial with the tube and imparting a kink radius on the tube, the imparted kink radius of the tube being smaller than the kink radius of the shaft.