【摘要】 针对现有的血袋血浆乳糜指数测量均需要从血袋抽取部分血浆出来进行测量，存在着操作麻烦及对血袋血浆二次污染风险等问题，提出了一种无损式血袋血浆乳糜指数测量的方法，通过分别测量挤压成两种不同厚度的同一血袋对特定波长光源的透光特性，得到该厚度差的待测血浆导致的光衰减，并根据朗伯-比尔定律，与标定的乳糜指数已知的相同厚度差血浆的光衰减进行对比，计算得到待测血浆的乳糜指数。所提出的测量方法，无需从血袋中抽取出血浆，避免了血浆的损耗和二次污染的风险。基于LED白光光源、窄带滤光片、硅光电池传感器及Arduino UNO主控板制作的测量装置，针对乳糜指数分别为1～6的各6袋血浆样品的测试，测得的乳糜指数均与实际的乳糜指数相符合，验证了所提出的测量方法及装置的正确性。更多还原

【Abstract】 The existing blood bag plasma chyle index measurements, which need to extract some plasma from the blood bag for measurement, have problems such as troublesome operation and the risk of secondary contamination of blood bag plasma. A novel non-destructive blood bag plasma chyle index measuring method is proposed to solve these problems. By separately measuring the transmittance characteristics of blood bags squeezed into two different thicknesses to a specific wavelength light source, the light attenuation caused by the testing plasma thickness difference can be obtained. According to the Lambert-Beer’s law, the chyle index of the testing plasma can be calculated by comparing this light attenuation with the light attenuation caused by the same thickness difference of calibrated plasma with the known chyle index. This method does not need to extract plasma from the blood bag, which avoids the loss of plasma and the risk of secondary contamination. A testing device is built with LED white light source, narrow-band light filter, silicon photocell sensor, and Arduino UNO controller. 6 bags of chyle index 1～6 are measured, and the measured chyle indexes are consistent with the actual chyle indexes. Such a measurement verifies the correctness of the proposed measurement method and device.更多还原