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Description / Abstract:
This TIR is a safety case development reference for medical
device design. The TIR is intended to provide a framework within
which experience, insight, and judgment are applied systematically
to assure and document the safety of a medical device's design.
This TIR is not intended to be a prescriptive guidance for the
development and documentation of safety cases. This TIR also does
not address all necessary activities required to assure that the
device, as presented to the user / patient, is fit for use.
In order to simplify this TIR, this guidance has an assumption
that the reader is familiar with the hazards for a particular type
of product, and is not designing a new-to-world product. While the
techniques in this guidance can be used for innovative products,
this TIR is targeted at existing, well understood products.
Finally, this guidance is written with a focus on "design safety
assurance", emphasizing design inputs, design outputs,
verification, and validation. The same techniques can be used for
developing a "GMP safety assurance", which accounts for
verification and validation of the manufacturing and quality
process controls. It is suggested, though not required, that a
Safety Case include both aspects of the design and GMP elements of
the medical device in order to effectively argue that the device as
a system is safe and effective.
Purpose
The purpose of this TIR is to provide guidance on the
development of Safety Cases for the design of a medical device. It
is intended primarily for product developers, quality assurance,
regulatory reviewers and auditors – anyone who requires a clear and
complete story regarding the safety of a medical device's
design.
Even though drug delivery devices have been primarily used
within examples shown, the same definitions and approach can be
used for any medical device.