Prepared by Dr Arthur CW Lau, ICU, Pamela Youde Nethersole Eastern Hospital, Hong Kong
What device does this Mercedes sign belong to?
A. A component of the newest 2011 models of Mercedez Benz cars
B. Rotaflow cetrifugal pump head (impeller)
C. A component for heating in a new model of active heat and moisture exchanger
D. A nipple marker in radiology
E. A pacemaker component
Hints: It contains magnets and can therefore stand up on my desk pad containing iron.
