The development of instruments for minimal invasive surgery (MIS) is moving
in the direction of the miniaturization of mechanical components, a combin
ation of multiple functions in a single instrument, and the introduction of
new techniques, in particular those reducing bleeding and thermal damage w
hen cutting blood vessels. These tendencies have consequences for the repro
cessability of the instruments, usually making reprocessing more difficult.
In particular cleaning - the removal of contaminations from tiny lumina, j
oints, etc., is highly demanding. In addition, proof of successful cleaning
is difficult, and no standardised method of doing this in practice is curr
ently available. An overview of the problems associated with the reprocessi
ng of instruments for minimal invasive surgery is given, and a numbers of p
ossible solutions are discussed.