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EXAMPLES OF POKA-YOKE APPLICATIONS
6.4.5 Pulse Oximeter
Fixed-value or number poka-yoke can also detect whether
a number falls within a normal range. For example, a pulse
oximeter, as shown in Figure 6.17, monitors a patient’s
oxygen saturation level using a photodetector to analyze
blood oxygen levels. If the level falls below a certain value,
an alarm will sound.
TAKE FIVE
Take a few minutes to think about these questions and to write
down your answers:
◾ Can you think of situations in your workplace where
fixed-value or number poka-yoke devices could be
useful in preventing mistakes?
◾ How would you describe the causes of problems
that ...