A sterile, pre-filled syringe is unwrapped and immediately ready for use in contrast echocardiography procedures in multiple in-patient and out-patient settings. The novel, patent-protected composition of suspended Oxygen micro-bubbles ensures complete safety in all anatomies, at very low cost, addressing a market exceeding $ 200 MM. The Company is approaching high volume manufacturers / distributors of pre-filled saline syringes as Partners.