Class III device " preventing impairment of human health"


Can someone provide an example of a class III device that is "of substantial importance in preventing impairment of human health" which is part of the class III definition found at 21 CFR 860.3. I have copied the complete definition below.

I did not find any further explanation on or elsewhere. Thanks for your help.

"Class III means the class of devices for which premarket approval is or will be required in accordance with section 515 of the Federal Food, Drug, and Cosmetic Act. A device is in class III if insufficient information exists to determine that general controls are sufficient to provide reasonable assurance of its safety and effectiveness, or that application of special controls described in the definition of "Class II" in this section in addition to general controls, would provide such assurance, and if, in addition, the device is life-supporting or life-sustaining, or for a use which is of substantial importance in preventing impairment of human health, or if the device presents a potential unreasonable risk of illness or injury."
Top Bottom