Abstract
Local volume changes of the artery segment under the cuff are caluculated using a static model in which assumed external pressure distributions along the artery and four arterial tube laws are used. Local volume changes of brachial arteries deviled into four sections are measured experimentally using impedance plethysmography. From comparison of analytical and experimental results, individual volume change characteristics in proximal half of the artery under the cuff have been known to be well represented by the static model, if tube law is appropriately selected. Furthermore, validity of the static model, including the tube laws, is shown by compering analytical results with experimental results of Herscovici et al. From the analytical results, it has been known that arterial volume change profiles are strongly affected by arterial tube laws. Therefore, tube laws have to be taken into algorithm determining blood pressure in blood pressure measurement technique using informations about the volume changes.
