PERIGIO derived from PERIpheral anGIOgraphy is a diagnostic medical device visualizing blood vessel in extremities of the human body using ultrasound imaging widely used in clinical sites and state-of-the-art photoacoustic imaging. PERIGIO’s photoacoustic imaging provides vascular morphology (structural information) and oxygen saturation (functional) of microvessels, which conventional ultrasound imaging cannot.

To achieve those new features, PERIGO utilizes a medical-use laser source and a diagnostic ultrasound imaging device. The laser source illuminates light on the human body via an optical fiber bundle, and the ultrasound imaging device and its ultrasound probe capture the ultrasound waves generated from hemoglobin by the laser light, namely photoacoustic waves. PERIGIO’s software localizes the hemoglobins and represents blood vessels in an image format.

In addition, PERIGIO uses its specialized handheld scanner that includes the combined assembly of the ultrasound probe & optical fiber bundle and a motorized linear actuator. The handheld scanner is capable of being held with one hand and captures photoacoustic waves efficiently and extends a field of view. The built-in software automatically scans and obtains vascular images if just holding the handheld scanner and pressing a foot switch for laser output.