Needle dislodgement and blood leakage detection device

A needle dislodgement and blood leakage detection device, comprising:

• a sensor assembly, which comprises a flexible sensor and a flexible substrate, the flexible sensor being provided, on an underside thereof, with a photoelectric sensor, the photoelectric sensor comprising a plurality of near infrared transmitters, which are of an array arrangement, the photoelectric sensor comprising a signal amplifier module and a signal filter module that are electrically connected;
• and
• an alarm device, which is coupled to the sensor assembly, the alarm device comprising a microprocessor unit, the microprocessor unit comprising a digital signal converter module, a signal sampling module, a signal demodulation module, a signal processing module, a time division module, a storage module, and a wireless transmission module that are connected in series, wherein the digital signal converter module is connected to the signal filter module;
• the storage module is connected to a display unit;
• and the wireless transmission module is connected to a computer.