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    Use Specification

    Defined description of intended users, uses, use environments, and patient populations for a device.

    Reviewed by Christian Espinosa, Founder, Blue Goat CyberLast reviewed May 5, 2026

    Definition

    Per IEC 62366-1, the use specification documents the intended medical indication, patient population, intended part of the body or tissue, intended user profile, intended use environment, and operating principle.
    What the regulation says
    IEC 62366-1:2014+A1:2020 specifies the essential elements of a use specification, including the medical indication, patient population, anatomical site, user profile, use environment, and operating principle. The FDA similarly expects manufacturers to define the intended use and users as part of their human factors engineering process, as detailed in their guidance "Applying Human Factors and Usability Engineering to Medical Devices."

    What this means in practice

    Drives the use-related risk analysis and human factors validation. Discrepancies between use specification and real-world clinical use are a frequent root cause of use errors.

    Examples

    • For an insulin pump, the use specification would define the intended patient population as individuals with diabetes requiring insulin therapy, specify the self-administration by patients or caregivers, and detail the home-use environment.
    • For a surgical robot, the use specification would identify the intended users as trained surgeons and their teams, delineate the surgical procedures supported, and stipulate the operating room environment.
    • For a diagnostic software, the use specification would describe the intended medical indication, such as aiding in the detection of a specific disease, and identify the intended user as a qualified healthcare professional interpreting the results.
    Common pitfalls
    • •Failing to involve actual users in the development of the use specification can lead to an incomplete or inaccurate understanding of real-world use conditions.
    • •Not updating the use specification throughout the device lifecycle, especially after design changes or new clinical insights, can introduce significant risks.
    • •Confusing the use specification with marketing claims can result in a document that exaggerates capabilities or misrepresents the intended user base.
    • •An overly broad or vague use specification can make it difficult to conduct a thorough use-related risk analysis and human factors validation.
    • •Disregarding the influence of the use environment on user interaction and device performance is a common oversight that leads to use errors.

    Frequently asked questions

    The use specification is a detailed expansion of the intended use, providing granular information about how the device is meant to be used in practice. It translates the high-level intended use statement into concrete operational parameters.

    Cross-references

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    Primary references

    3 sources
    Link health: 3 verified· last checked 2026-06-20
    IEC·1ISO·1AAMI·1
    1. 1
      IEC 62366-1
      Verified
      IECwebstore.iec.ch
    2. 2
      ISO 13485 Standard Page
      Verified
      ISOiso.org
    3. 3
      AAMI - Quality Systems Resources
      Verified
      AAMIaami.org

    Inline markers like [1] jump to the matching reference above.