Assuntos
Dispneia/diagnóstico por imagem , Intoxicação do Sistema Nervoso por Mercúrio/complicações , Embolia Pulmonar/diagnóstico por imagem , Radiografia Torácica , Tentativa de Suicídio , Adulto , Diagnóstico Diferencial , Dispneia/etiologia , Dispneia/fisiopatologia , Humanos , Masculino , Intoxicação do Sistema Nervoso por Mercúrio/diagnóstico por imagem , Intoxicação do Sistema Nervoso por Mercúrio/fisiopatologia , Embolia Pulmonar/induzido quimicamente , Embolia Pulmonar/fisiopatologiaRESUMO
The influence of an eccentrically inserted catheter on the peristaltic pumping in a tube is investigated under long wavelength, low Reynolds number assumptions. The radially asymmetric deformation of the wall arising through an eccentrically inserted catheter is taken into consideration by choosing an appropriate bipolar coordinate system. The effect of the position and size of the catheter on pumping characteristics is studied. The best performance of pumping is noticed at a certain position of the catheter. The size of the catheter, when placed eccentrically, alters the pressure signature significantly inside the bolus, unlike the concentric case discussed by Lykoudis and Roos (1971). Further, the maximum pressure rise in one period of the peristaltic wave is observed to decrease with an increase in the eccentricity.
