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Updated: Aug 13, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
[Urodynamics rationale. The flow curve]
J Benítez Navio1, T Casanueva Delgado, P Caballero Gómez
1Servicio de Urología, Complejo Hospitalario de Ciudad Real, España.
Objective:
To describe the mathematical representation of a common phenomenon: the urinary flow curve.
Methods:
The statistical adjustment for minimum squares was the method employed in the study.
Results:
A mathematical expression was obtained with a goodness of fit for each flow curve and an acceptable margin of error.
Conclusions:
The model which considers the flow curve as a parabola is not useful since this is an expression of a statistical phenomenon that varies from case to case. We utilized the minimum squares fit to obtain a regression curve that provides the nearest possible representation of urinary flow. Furthermore, we consider the flow curve to be the result of forces that develop in the detrusor, which produces the complex phenomenon of voiding. This study is the first step toward the development of a mathematical representation of the urinary flow mechanics.
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