Laser speckle blood flow imaging device

The embodiment of the utility model discloses a laser speckle blood flow imaging device. The system comprises an image acquisition device, an annular light source module, a processor, a temperature measuring device, a shell, a nitrogen supply device and a liquid nitrogen supply device, in the use process, liquid nitrogen is used as a refrigerant, nitrogen is used for exhausting air in the shell, and it is avoided that white steam generated by evaporation of water vapor in air influences the image acquisition view; other objects do not need to intervene in the detected area in the process, theimage collecting device can collect images of the detected area in the whole process without shielding, medical staff can conveniently, clearly and completely check the blood flow state of the detected skin, and great convenience is brought to use of a user. 本申请实施例公开了一种激光散斑血流成像装置，包括图像采集装置、环形光源模块、处理器、测温装置、外壳、氮气提供装置和液氮提供装置，使用过程中，使用液氮作为制冷剂，使用氮气排出外壳内的空气，避免空气中水蒸气蒸发产生白汽影响图像采集视野；过程中不需要其他物体介入被检测区域，图像采集装置能够毫无遮挡的全程采集被检测区域的图像，便于医护人员