ロボティクス・メカトロニクス講演会講演概要集
Online ISSN : 2424-3124
セッションID: 1P2-J08
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1P2-J08 パラレルリンク型足関節他動運動装置(PHARAD)の静脈還流促進効果に関する研究
米澤 輝野村 健太小野寺 貴之丁 明市村 志郎溝口 博竹村 裕
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This paper presents evaluation of venous return promoting effects of our developed "parallel link type human ankle rehabilitation assistive device (PHARAD)" that can measure accurately foot motions in six degrees of freedom (6-DOF) and reproduce ankle joint motions. The PHARAD performs passive exercise by controlling the foot plate in 6-DOF. The passive exercise can be performed for not only rehabilitation but also prevention of deep vein thrombosis (DVT). In this study, we measured concentration of deoxyhemoglobin (Deoxy-Hb) using multi-channel near infra-red spectroscopy (NIRS)-based tissue oximeters and calculated a gradient of Deoxy-Hb during the venous occlusion. We defined the gradient as the blood flow of vein (BF_<vein>) and evaluated venous return promoting effects of the PHARAD comparing BF_<vein> in resting with those in passive exercise. Experimental results show that there are significant differences of BF_<vein> in resting and passive exercise and this indicates PHARAD has a potential to prevent and decrease DVT.

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