Patent ID: 7682401

Claim:
A ureteral stent, comprising: an elongate member having a distal end portion for placement within a kidney of a patient and a proximal end portion for placement in at least one of a ureter of the patient and a bladder of the patient, the distal end portion having a retention portion configured to help retain at least a portion of the elongate member in the kidney of the patient, the retention portion defines an axis transverse to an axis defined by the elongate member, the retention member including a first curved portion curving in a first direction away from the axis of the retention member and a second portion curving in a second direction opposite the first direction, the elongate member being configured to be passed through the ureter of the patient from the kidney to the bladder to remove the elongate member from the patient, the distal end portion being configured such that a distal tip of the distal end portion is spaced from a sidewall of the ureter when the elongate member is passed through the ureter of the patient to remove the elongate member from the patient.