Patent ID: 7041139
Filing Date: 2006-05-09
Classification: A61F,A61M

Abstract:
1. A ureteral stent for placement in a ureter comprising: an elongated body portion defining a lumen, said body portion comprising a proximal end for placement within one of a ureter and a bladder of a patient, a distal end for placement within a kidney of the patient, a proximal portion, and a distal portion; and a retention module disposed proximal to said proximal end of said elongated body portion for retaining a portion of the stent in the bladder, said retention module comprising at least one bead having a diameter between 3 and 10 millimeters, the at least one bead being attached to the elongated body portion by at least one tether connector, wherein the at least one bead is substantially buoyant relative to urine.