VV1

VV1 is designed and developed upon the mechanism that hemoglobin has stronger absorption of infrared light than superficial skin and other tissues. After a series of digital image processing, VV1 maps the outline of the vein. Then, the projector projects the image on the surface of human skin to restore vascular distribution. In this way, qualified medical personnel can observe the projected vein image and locate the vein for venipuncture.