Re: Class for medical devices information
The EU device directive classification only applies to the final medical device - not to components of the device.
The classification criteria can be found in Annex 9 of the directive.
The classification of a pill-camera is, I think, controlled by Rule 5 - Invasive Devices.
From that it is:
Class 1 if for transient use (less than 60 minutes)
Class IIa if for short term use (less than 30 days)
Class IIb if for long term use (more than 30 days).
But if it connects to another device with a higher classification it inherits the higher class.