An apparatus is described for measuring the blood flow (Vb) between the trunk and the extremities. Such an apparatus comprises a whole body plethysmograph for measuring the variations of gas volume in the lungs (ΔVL), a thoraco-abdominal plethysmograph for measuring the volume variations of the trunk (ΔVCW) and a system for processing allowing measurement of the said variations of gas volume of the lungs (ΔVL) and the volume variations of the trunk (ΔVCW) so as to compute the volume of blood shifted between the trunk and the extremities (Vb). Further a process is described for measuring the volume of blood shifted between the trunk and the extremities (Vb). Such a process comprises: a measurement of the volume variations of the trunk (ΔVCW) by means of thoraco-abdominal plethysmography, a measurement (performed at the same time as the previous measurement) of the variations of gas volume of the lungs (ΔVL) by means of whole body plethysmography; a processing of said volume variations of the trunk (ΔVCW) and of said volume variations of the lungs in order to measure the volume of blood shifted between the trunk and the extremities (Vb).
Dual body plethysmography apparatus and process for measuring blood flow between the thorax and abdomen (the trunk) and the body periphery
ALIVERTI, ANDREA;DELLACA', RAFFAELE;PEDOTTI, ANTONIO
2007-01-01
Abstract
An apparatus is described for measuring the blood flow (Vb) between the trunk and the extremities. Such an apparatus comprises a whole body plethysmograph for measuring the variations of gas volume in the lungs (ΔVL), a thoraco-abdominal plethysmograph for measuring the volume variations of the trunk (ΔVCW) and a system for processing allowing measurement of the said variations of gas volume of the lungs (ΔVL) and the volume variations of the trunk (ΔVCW) so as to compute the volume of blood shifted between the trunk and the extremities (Vb). Further a process is described for measuring the volume of blood shifted between the trunk and the extremities (Vb). Such a process comprises: a measurement of the volume variations of the trunk (ΔVCW) by means of thoraco-abdominal plethysmography, a measurement (performed at the same time as the previous measurement) of the variations of gas volume of the lungs (ΔVL) by means of whole body plethysmography; a processing of said volume variations of the trunk (ΔVCW) and of said volume variations of the lungs in order to measure the volume of blood shifted between the trunk and the extremities (Vb).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
