Abstract: A tail pressing type disposable safety lancet includes a shell, a lancet core, a spring and tail cover. The shell has an elastic arm for locking the lancet core, wherein: the tail cover has an active locking part for locking and the elastic arm has a passive locking part for locking correspondingly; the positions, the fitting time of the active locking part and the passive locking part correlate with the active and passive unlocking parts; when the tail cover is pressed during use, it forces the lancet core to unlock for ejection and puncturing, and the tail cover and elastic arm enter the locking state and cannot be used again. After use of the safety lancet, the tail cover permanently locks on the elastic arm of the shell, ensuring the safety of single use, and the user visually recognizes the tail cover is retracted at the tail of the shell.

Abstract: An electronic sphygmomanometer measuring method, comprising: acquiring a barometric pressure sequence (S110); obtaining a systolic pressure/diastolic pressure on the basis of the barometric pressure sequence (S120); extracting characteristic information of the barometric pressure sequence (S130); and correcting the systolic pressure/diastolic pressure on the basis of the characteristic information (S140). The measuring method increases the precision in calculating the systolic pressure/diastolic pressure. Also disclosed accordingly are an electronic sphygmomanometric system, an electronic sphygmomanometer, and a storage medium.