Simulation of physiological ureteral peristalsis.
Occlusive ureteral peristalsis is simulated in an enlarged technical model of the ureter with a lobe-shaped lumen. The local pressure pulse is measured with catheters of different caliber and the influence of the catheters size and position on the uromanometrogram (UMG) is examined. The measurements are compared with UMGs at pathologically changed conditions (stagnation, residual urine depot etc.) and suggestions are given concerning size and shape of catheters to be used for urodynamic measurements.
D006801:Humans; D008961:Models, Structural; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology; D011312:Pressure; D014513:Ureter / Q000502:physiology*; D014546:Urinary Catheterization; D014554:Urination; D014563:Urodynamics