Re: Production vs Reparation of Reusable Medical Devices (Class IIa)
Sorry, somehow this thread has evaded me...
You made a good delineation between regulatory and quality. I understand that you're interested mainly in regulatory so I'll skip quality assurance, although as hinted earlier there are some QA aspects that have to be sorted.
Another thing to note is that the regulatory answer will be territory-specific. Up till now the EU approach was discussed. Unfortunately the FDA approach to repairs is less clear-cut, but practically you can treat repairs on the USA market as de-facto non-regulated by FDA (it has been this way for years). Do note please that the FDA has recently started the ball rolling on tying up the loose ends regarding repair (what they call "recondition"), remanufacturing and the like.
As a general approach to EU regulation of repairs I'll second the above - as long as you're not changing the device original spec and it returns to the original owner, you're not placing a device on the market and you don't need to refresh the CE marking clearance. In that sense it's important to verify that the device spec has indeed not changed, hence the need for final inspection (apart from the QA/QC aspect).
Whether you do the repair in-house or outsource it to your CM doesn't matter from a regultory perspective, because you were, and are staying, the legal manufacturer. Of course all CM / purchasing controls that applied during initial manufacturing would still need to apply, to keep regulatory compliance watertight, if the CM conducts the actual repair. If you originally did the final inspection and release it would make the most sense (and simplify things from a regulatory perspective) that you do it after the repair as well.
HTH
Ronen.
PS Please also note that repair / service has a Post-Marketing Surveillance (PMS) aspect in the EU. It is an important collection channel of information about your device performance, reliability, safety etc. There's quite a lot of good guidance on EU PMS requirements and expectations, you will easily find it on the web if needed.