A manufacturer is only liable for failure or deterioration of safe operation.
A manufacturer is only liable for failure or deterioration of safe operation, operational safety and performance if the rigid endoscopes have been used in accordance with the operating instructions at all times.
However, just following these procedures does not necessarily prove that everything has been performed in accordance with these specifications, because proof can't be shown.
With our products, proof can be collected to show that testing is in compliance with the operating instructions and that the optic is in conformity with manufacturer provided specifications.