The characteristics and performance of a device shall not be adversely affected to such a degree that the health or safety of the patient or the user and, where applicable, of other persons are compromised during the lifetime of the device, as indicated by the manufacturer, when the device is subjected to the stresses which can occur during normal conditions of use and has been properly maintained in accordance with the manufacturer's instructions.
Ní dhéanfar dochar do thréithe ná d'fheidhmíocht feiste a mhéid a chuirfí isteach ar shláinte ná ar shábháilteacht an othair nó an úsáideora ná, i gcás inarb infheidhme, ar shláinte ná ar shábháilteacht daoine eile le linn shaolré na feiste, mar atá sonraithe ag an monaróir, nuair a imrítear ar an bhfeiste an gnáthstrus a fhéadann teacht as gnáthdhálaí úsáide agus nuair a bheidh sí á cothabháil de réir mar atá sonraithe ag an monaróir.