FDAnews
www.fdanews.com/articles/97037-firm-cited-for-using-finger-test-on-devices

Firm Cited for Using Finger Test on Devices

August 10, 2007

Devicemaker Avazzia received a warning letter after the FDA said it used unvalidated device acceptance procedures to test its transcutaneous electro-stimulators. The firm’s final test procedure, “using the fingers to feel the device output during factory testing,” is not a validated scientific test method, the letter said.
The GMP Letter