Catheter with distal diffuser

摘要

A catheter configured with an elongate tube and a diffuser is disclosed. The diffuser may be configured to facilitate high flow rates through the catheter and to resist blockage of openings disposed within the body. Further, the catheter may be comprised of flexible materials to facilitate delivery into and removal from the body. In some embodiments the diffuser may be generally disc shaped.

主权项

1. A catheter comprising:
an elongate lumen extending between a proximal end and a distal end, and a diffuser coupled to the distal end of the lumen, the diffuser comprising:
a flexible upper surface extending radially from the distal end of the lumen when the catheter is in a deployed configuration,a flexible lower surface, wherein the lower surface forms a conical shape,an interior portion disposed between the upper and lower surfaces, anda plurality of walls disposed between and coupled to the upper and lower surfaces, wherein the walls are thicker adjacent a center of the diffuser in relation to the thickness of the walls adjacent a circumference of the diffuser, such that the walls conform to the conical shape of the lower surface, wherein the interior portion is in fluid communication with the lumen.