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Re: EN 980:2008(E)-Graphical symbols for use in the labeling of medical devices
I regard that particular NB-MED document as one of their weaker efforts.
The definition of scope
is both inconsistent with this requirement
and also, by implicitly restricting the use of the hourglass symbol to "period before first use" only, leaves the implementor with no way to communicate the product's lifetime after product is opened.
The company for which I work believes that we better provide for product safety and effectiveness by using the hourglass symbol for both "period before first use" and "lifetime after product is opened", with appropriate, prominent text under the symbol in each case to communicate to the user which concept is intended by that use.
We don't regard that as an ideal solution, but in our view it's better than anything else supported by currently available standardized symbology.
I regard that particular NB-MED document as one of their weaker efforts.
The definition of scope
The ”use-by” time limit relates to the period before the first use of the device. It does not relate to the number or period of subsequent uses (the ”lifetime” of the device).
The risk analysis and measures taken to manage risk will also identify the period over which the relevant performance or characteristic would be expected to be maintained for safe use, including the shelflife and intended period of use.
The company for which I work believes that we better provide for product safety and effectiveness by using the hourglass symbol for both "period before first use" and "lifetime after product is opened", with appropriate, prominent text under the symbol in each case to communicate to the user which concept is intended by that use.
We don't regard that as an ideal solution, but in our view it's better than anything else supported by currently available standardized symbology.
again