Abstract: Method and device for using energy transduction for novel use in locating an underlying artery, particularly a more superficial artery like the radial artery. The method includes Placing or scanning the device containing an electrical system, which comprises of an arterial pressure or motion transducer converted to visible light energy on the overlying skin in the region of the vessel. Then, observing for visibly emitted light to indicate the presence of an underlying artery, and localizing artery with a device, and then stabilizing the underlying blood vessel with the device placed on the overlying skin prior to introduction of arterial line or syringe. The device may include an automated sampling compartment for syringe introduction in the case of arterial blood gas collection.