Wearable blood pressure measuring device

A wearable blood pressure measuring device comprising:

• a strap structure adapted to be worn by a user and having an outer surface and an inner surface;
• a micro gas pump embedded within the strap structure;
• and
• a pressure sensor combined with the micro gas pump through an elastic medium, wherein the elastic medium is sandwiched between the micro gas pump and the pressure sensor and has a first surface and a second surface, and the first surface has an opening communicating with a gas-collecting perforation of the micro gas pump, whereby gas is guided into the elastic medium from the micro gas pump, and the pressure sensor is disposed on the second surface opposite to the first surface and configured to be in contact with skin of the user for monitoring blood pressure;
• wherein the micro gas pump is operated to drive gas to be transported into the elastic medium, whereby the elastic medium is inflated with the gas, so the pressure sensor is configured to push against the skin of the user, and to measure a blood pressure of a target artery by a flattening and scanning operation.