Page 333 - Control Theory in Biomedical Engineering
P. 333

Initial  15least,  (with  risk  105most)  and Verification  and  controls  Risk  Risk  Severity Likelihood  validation  measures mitigation  required  force  the  Test  a  of Benchmarking  4  4  2  the  detach  to  device  current  camera/tip  F2942-13  ASTM  D6412/  ASTM  D6412M-99(2012)  bending Three-point  acrylic  the  that



                      tip               a  in           a  in  (unable  the
                      flexible  is trapped in a  patient’s  of  endoscope  trapped  patient’s  of  endoscope  trapped  patient’s  retract  endoscope)  body  response,  inflammation


                   Harm  The  body  Part     body   Part     body  to   Foreign





                   failure  bending  tip  principal  the  tensile  the  of  coated  wire  biocompatibility  material

                   of   the         Exceeding  of  material  Exceeding  strength  enamel  copper  Inadequate  the
                   Cause  Repeated  of  stress                               of


          analysis      tip         main


          mode     mode  of  endoscope  endoscopy  of  design  breakage  endoscopy  Biocompatibility  materials  (surface

          Failure  Failure  Breakage  during  Breakage  body  Wire  during  of  used
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