4About UMDNSThe 2011 UMDNS contains more than 26,000 medical device terms9,110 preferred termsMore than 17,000 entry terms2,340 licensees in more than 100 countries (many more individual users)These are some current statistics for UMDNS. As you can see from the slide, as of 2009, UMDNS contains more than twenty-three thousand terms – this number has almost doubled in the past ten years. We also have a wide international user base – the number of licenses underestimates the total number of users – many hospitals and other organizations hold a single license for the entire institution.
5ECRI’s UMDNS: Current Users 2340 Licensees in 100 countries: actual number of individual hospital and organizational end users much larger (e.g., 1 license to the Malaysian MOH covers 150 hospitals)Regulatory agencies - post market surveillance, vigilance reporting, product registration, data storage and retrievalOther govt.agencies (ministries of health, US DOD, VA, NLM)Private health systems, healthcare facilities, NGO’s: for inventory control, hazard and recall tracking, equipment planning, procurement, technology management, monitoring emerging technology, emergency preparedness (in conjunction with ECRI’s data)IT software vendors of hospital equipment computerized maintenance management systemsConsulting firms and Websites for procurement and tradeEg, Use of UMDNS is extremely wide ranging. It includes disaster planning and recovery: UMDNS was used to account for necessary equipment and supplies during recovery from Hurricane Katrina and by the Ministry of Health of the state of Tabasco in Mexico to inventory equipment lost during floods
7ECRI’s Technical Approach to UMDNS: Formal, hierarchical system for organizing device-related informationNot simply a list of products: a databaseDynamic: maintained and updated continuously to reflect advances in medical technology (eg, in 2010, 558 preferred terms added/modified, including 220 for medical software, 1847 new/modified entry terms)constant monitoring to maintain and improve qualityWorldwide user feedback a critical input for UMDNSAs both a user and nomenclature developer, ECRI understands user perspectives and priorities
8UMDNS Content: Preferred terms and codes Entry terms Hierarchy Parent-child as well as sibling relationships (Cross references)AttributesDefinitionsMappings and linkages
9UMDNS Scope:Covers all medical devices and supplies, clinical laboratory equipment and reagents, selected hospital furniture, systems and test equipmentSince 2001, thousands of new terms developed by ECRI for disposables, molecular diagnostic tests, emergency preparedness, medical software and emerging technologiesRelated dataset includes 30,000 device manufacturer/supplier/servicer company names and their associated 6-digit codes
10UMDNS Organization:Unique 5-digit numeric code/identifier corresponding to each preferred termAssigned randomly and sequentiallyCodes intentionally do not carry inherent meaning
12Entry Terms: User-friendly entry points to UMDNS Entry terms include synonyms, quasi-synonyms, lexical variants, initialisms, or acronymsAlso may include imprecise and/or extremely broad or extremely narrow/specific concepts not appropriate for preferred termseg, Ophthalmic lasers, MRI units, Bovies, PRN Adapters, Q-Tips
13Concept Definitions:Formal definition for each preferred term/coded conceptConstructed in a standardized wayDescribe the device and its intended purposeHelp to prevent ambiguity, redundancy or overlapping of concepts for similar devices
14Concept PermanenceConcepts are never removed, but may become obsolete or retired (their status changes)Codes for retired concepts and terms are never re-used for new conceptsIn most cases, a retired preferred term becomes an entry term pointing to the new preferred term or termsArchival list of retired preferred terms is retained in the master database
15Attributes: Characteristics of particular UMDNS concepts Each preferred term may be linked to different attributes in the UMDNS databaseeg, Implantable device, capital equipment, one or more clinical specialties, price, FDA regulatory class, useful life, “used with”, “part of” etc.
16Hierarchical Structure of UMDNS: Powerful tool for representing devices used in healthcareDifferentiates nomenclature from a flat dictionary or glossary listMultiple levels of categories broader than the level represented by the preferred terms/device groups in UMDNSDefinitions for uppermost levels inclusive of all devices grouped under each levelUMDNS utilizes multi or polyhierarchy
21UMDNS Licensing and Distribution: Licensed from ECRI (basic version free of charge to government agencies, individual hospitals, manufacturers, fees for eCommerce sites and commercial software companies; fees for additional data, special formats, other IT services)Free version available electronically as an ASCII or Excel download from UMDNS Web page, updated monthlyUser support by fax, , telephoneSpecial arrangements for supporting translation efforts
22UMDNS Licensing and Distribution: Commercial license fee based on level of support and data (eg, Web services, specialized formats, monthly updates, usually with data on suppliers and their product lines)Commercial licensees do not pay a per-user fee, but per institution (for unlimited use within the institution)eg, application developer loads UMDNS into the software application