手指的血流循环具有某些独特的性质,全血的95％要经过其皮肤。同时手在人体热交换中亦起重要作用,它能帮助了解外周循环系统的生理和病理变化。最近,血管外科和循环系统失调药物治疗的新进展,更提出了改进手指循环评价方法的必要性。作者采用激光多普勒技术、阻抗和应变计 The blood circulation of the fingers has some unique properties, 95% of the whole blood going through the skin. At the same time, the hand also plays an important role in human body heat exchange, which helps to understand the physiological and pathological changes of the peripheral circulatory system. Recent advances in the treatment of disorders of the vascular surgery and circulatory system have also raised the need for improved finger circulation assessment methods. The author uses laser Doppler technology, impedance and strain gauge