The Avanca RPD™ Syringe offers important benefits to physicians for fine needle aspirations and biopsies, steroid epidural injections and amnio and chorionic villius fluid withdrawals. The Avanca RPD Syringe reduces unintended forward penetration and hemorrhage, and frees one hand for palpation or ultrasound transducer control. It is superior to conventional syringes, three ring control syringes and syringe pistols and guns. The Avanca RPD Syringe also reduces procedure time.