一般血压计均测定肱动脉血压,测得的是较大口径的动脉血压值。然而,全身广泛分布的小动脉却是调节体内循环系统的关键。因此,皮肤浅表处微血管血压的测定对临床和病理生理的研究,如高血压、休克等具有特殊的意义。皮肤微血管血压测定通常采用直接法,即用显微套管插入皮肤小动脉内进行测压。此法虽准确可靠,但技术要求高且有损伤, Brachial artery blood pressure is measured in general sphygmomanometer, the measured diameter of arterial blood pressure value. However, the wide distribution of arterioles throughout the body is the key to regulating the circulatory system in the body. Therefore, the determination of microvascular pressure in superficial skin has clinical and pathophysiological significance, such as hypertension and shock. Skin capillaries blood pressure measurement is usually direct method, that is, using a micro-cannula inserted into the skin arteries to measure pressure. Although this method is accurate and reliable, but high technical requirements and damage,