Patent ID: 6764519
Filing Date: 2004-07-20
Classification: A61M

Abstract:
A ureteral stent for facilitating drainage from the kidney to the bladder of a patient, comprising:(a) an elongated portion defining a lumen extending therethrough and including a length sufficient to extend substantially within the ureter from the kidney to the bladder; (b) a retention portion extending from one end of the elongated portion, defining an interior space in communication with the lumen, and defining at least one opening in communication with the interior space, the retention portion for placement substantially within the kidney and configured to retain position substantially within the kidney; and (c) a flared portion curving outward while extending from the other end of the elongated portion, the flared portion for placement substantially within the bladder and being collapsible to allow entry into the bladder through the urethra, the flared portion comprising a wall and an elastic member, the elastic member having an undulating shapes undulating between a proximal transverse plane and a distal transverse plane, and being embedded within or attached to the wall for maintaining the shape of the flared portion in an expanded state when located substantially within the bladder.