Ureteral stent

Abstract

The subject of the invention is a ureteral stent. The invention discloses a ureteral stent that includes a tubular member and a retaining end adapted to be placed inside a kidney or a bladder of a patient. The retaining end includes a plurality of loops. Each of the loops is centered about a loop axis, and two or more of the loop axes extend in different directions relative to other loop axes.

Description

technical field [0001] These teachings relate to medical devices, and more specifically, to ureteral stents. Background technique [0002] A ureteral stent may be placed in the patient to help drain urine from the kidney to the bladder. For example, after some ureteral stone procedures, fragments or fragments of the stone or tumor can fall down into the ureter, which can interrupt or block the flow of urine from the kidney to the bladder. A ureteral stent works by allowing the ureter to dilate, passing stones or stone fragments through, and allowing urine to flow from the kidney to the bladder. [0003] Ureteral stents generally include a tubular member terminating at two opposite ends. One of these ends may be referred to as the upper or renal end, which, as the name implies, is placed in the kidney, and the other end may be the lower or bladder end, which is placed in the bladder. A tubular member is positioned in the urethra between the kidney and bladder. One or both...

AI Technical Summary

Problems solved by technology

However, one or both of these retention features can have adverse effects or patient discomfort, including: bleeding, persistent urge to urinate, and irritation of the trigone

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