The medical device nomenclature and the five-digit number associated with each medical device, that are incorporated into the Medical Product Guide are a part of ECRI Institute’s proprietary Universal Medical Device Nomenclature System (UMDNS), a widely employed international classification system for medical device information indexing and retrieval. The five digit number is the authorized ECRI Universal Medical Device Code (UMDC). This information is time sensitive and may not be accurate at a future date. For more information on ECRI Institute, and the UMDNS system, please click here.