▎ 摘　　要

NOVELTY - Micro-nano array based radial artery puncture guide device comprises visual puncture guide module for radial artery detection and a puncture assistant module for supporting and immobilizing the upper limb. The visual puncture guide module includes an array support layer (1), a mechanochromic layer (2) and a signal amplification layer (3). The array support layer is a colorless and transparent flexible material, comprising a fixed surface and an action surface respectively located on both sides. Multiple circular cone-shaped protrusions with small ends facing upward are evenly arranged on the working surface, and all the protrusions together constitute a contact base. The surface of the contact substrate is uniformly covered with a mechanochromic layer capable of being discolored by force. The surface of the mechanochromic layer is uniformly covered with a signal amplification layer capable of amplifying the radial artery pulse signal. USE - Micro-nano array based radial artery puncture guide device. ADVANTAGE - The micro-nano array based radial artery puncture guide device has high sensitivity, good arterial visualization effect, simple operation, simple structure and easy preparation, realizes rapid and accurate positioning and range determination of the radial artery and provides the physician with the best puncture field and maximizes the comfort of the patient while improving the efficiency of the operation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for performing radial artery puncture and guidance using the radial artery puncture and guidance device, which involves placing the patient's arm on the support body, and fixing the visualized puncture guide module inside the first fixing strap, adjusting the winding position of the first fixing strap on the arm, observing the discoloration of the mechanochromic layer in real time, when the signal amplifying layer is in contact with the radial artery of the arm, the pulsating signal of the radial artery can be amplified by the signal amplifying layer and then transmitted to the mechanochromic layer, mechanochromic layer will change color under the action of force after receiving the pulsating signal, to determine the position of the radial artery of the patient's arm, determining the position of the radial artery, where radial artery puncture operation is performed, and then the visual puncture guide module is removed. DESCRIPTION OF DRAWING(S) - The drawing shows a front view of the visual puncture guide module. 1Array support layer 2Mechanochromic layer 3Signal amplification layer 4Pre-fracture