Wearable cardiac ultrasound patch, cardiovascular disease identification system, and method thereof

A wearable cardiac ultrasound patch for installing on the skin of the cardiac region to obtain cardiac images, the wearable cardiac ultrasound patch comprising:

• an encapsulation body, one side of which is equipped with an adhesive layer for attaching to the skin of the cardiac region;
• an optical fiber micro-sensor housed within the encapsulation body, the optical fiber micro-sensor comprising a silicon photonic integrated circuit layer with a plurality of silicon photonic elements arranged in a two-dimensional array and a microelectromechanical integrated circuit layer with multiple piezoelectric elements arranged in a two-dimensional array, and the silicon photonic integrated circuit layer and the microelectromechanical integrated circuit layer are vertically stacked, with each of the silicon photonic elements respectively corresponding to each of the piezoelectric elements, and the silicon photonic integrated circuit layer is arranged facing the adhesive layer, and the microelectromechanical integrated circuit layer is used to emit ultrasonic waves and propagate them to the cardiac region, when ultrasonic echoes act on each of the piezoelectric elements and cause material deformation, the material deformation is captured by the silicon photonic elements and converted into phase changes of optical signal, and the silicon photonic integrated circuit layer then outputs the electrical signal converted from the optical signal;
• and
• a computing chip housed within the encapsulation body, vertically stacked with the optical fiber micro-sensor, wherein the computing chip employs 3D beamforming technology to drive the each of the piezoelectric elements to emit ultrasound, digitizes the electrical signal output by the silicon photonic integrated circuit layer, and performs AI-based data analysis, allowing ultrasound beams to focus on different angles and depths of the heart, thereby obtaining multi-angle ultrasound data and generating raw data of the cardiac ultrasound image.