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BASIC ELEMENTS OFTHEMISTAKE-PROOFING SYSTEM
through mistake proong, source inspection is carried out
by a system that signals people about mistakes and machine
errors before they become defects.
4.9 POKA-YOKE SYSTEMS CATCHERRORS
WE MIGHT HAVE MISSED
The fourth element that is unique to the mistake-proong
approach is the use of poka-yoke systems. Rather than relying
on clinicians and staff to catch their own errors or those of the
previous process, poka-yoke protocols and devices perform
source inspections and give quick feedback 100 percent of
the time. They supplement standard work, successive checks,
self-checks, and visual controls.