These Disposable Biopsy Needles are uniquely designed to provide a safe and efficient method for automatically obtaining specimens and maintaining their integrity. Designed for one hand operation, the needle's lightweight and compact spring-activated design utilizes technology based on the TRU-CUT Principle. Sharp beveled points allow penetration into the specimen with less trauma to the surrounding tissue. Manual advancement of the stylet then allows for imaging of the tissue in the notch prior to activation. Etched depth marks, along with a depth marker, provide easy visualization of the correct depth, and disrupted metal at the tip allows for visualization enhancement during ultrasound procedures. Ranfac's single-use needles are currently available with specimen notches measuring 10 mm or 20 mm.