Patent ID: 7485150
Filing Date: 2009-02-03
Classification: A61F,A61M

Abstract:
1. A ureteral stent comprising: a distal region including an elongated member defining a longitudinal axis and at least one lumen that is configured to convey liquid; and a proximal region in fluid communication with the distal region and comprising a proximal retention structure that includes a plurality of elongated members that splay away from the longitudinal axis of the elongated member of the distal region to help prevent entry of the proximal retention structure into a ureter, at least two of the elongated members of the proximal region having a lumen extending therethrough each of which is configured to convey liquid and is in fluid communication with the at least one lumen of the elongated member of the distal region, a distal end of a first elongated member from the plurality of elongated members of the proximal retention structure being coupled to a distal end of a second elongated member from the plurality of elongated members of the proximal retention structure, a proximal end of the first elongated member from the plurality of elongated members of the proximal retention structure being coupled to a proximal end of the second elongated member from the plurality of elongated members of the proximal retention structure, a central portion of the first elongated member from the plurality of elongated members of the proximal retention structure being unattached from a central portion of the second elongated member from the plurality of elongated members of the proximal retention structure, a portion of the first elongated member of the plurality of elongated members of the proximal retention structure being configured to be disposed in a bladder, the portion of the first elongated member of the plurality of elongated members of the proximal retention structure defining an opening such that the lumen of the first elongated member is in fluid communication with the bladder.