As a board certified practicing internist, Dr. Lopez started ICU Medical after he lost a patient due to an accidental IV disconnect. He invented a product known as the ClickLock, which provided a locking mechanism for these IV systems. The ClickLock consisted of a protected needle and locking housing that prevented health care workers from being accidentally stuck by the IV needles. The ClickLock was the first of several clinical innovations Dr. Lopez developed for ICU Medical that focused on enhancing safety at the point of care, including the Clave family of needlefree vascular access devices and the Neutron Catheter Patency Device.