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肢端光电容积脉波图是一种观察末梢循环状态的方法,它具有无创性,测试快速,能反映循环系统多种功能变化的特点。可以用来作为观察神经血管性改变的指标。如振动所致的白指病等。本课题的目的是探索此法在医学诊断中其他应用的可能性。材料和方法实验选用硅光电池作光电传感器,面积为平方厘米,3V电珠作光源。光电输出与心电机一导联电极相联接,走纸速度25毫米/秒。光电池和电池装蔽光匣上下两壁,待测指端置二者之间,记录脉波图5～10秒。有脉波节律异常者适当延长。测试对象为左手
Limb photoplethysmography is a method of observing the circulatory status of the distal end. It has the characteristics of being noninvasive, testing fast, and reflecting changes in various functions of the circulatory system. Can be used as an indicator of neurovascular changes. Such as vibration caused by white finger disease. The purpose of this topic is to explore the possibility of this method for other applications in medical diagnosis. MATERIALS AND METHODS Experiments using silicon photovoltaic cells for photoelectric sensors, an area of square centimeters, 3V beads for the light source. The photoelectric output is connected with a lead electrode of a cardiac motor, and the paper feeding speed is 25 millimeters / second. Photocell and battery cartridge box up and down the wall, the finger to be measured between the two, record pulse Figure 5 to 10 seconds. A pulse rhythm abnormalities were appropriately extended. The test object is the left hand