Figure 7-11 Mistake-Proofing the Design of Health Care Processes - Figure 7.11. This scale with a child's seat, which prevents injuries during weighing Return to Document Current as of May 2007 Internet Citation: Figure 7-11: Mistake-Proofing the Design of Health Care Processes -. May 2007. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patient-safety-resources/resources/mistakeproof/mistakefig7-11.html