600 / | HD | SURGERY |
184 | DF | SPECULA {2} |
201 | DF | .~ Retractor {12} |
206 | .~.~ Having flexible, malleable or shape memory material {3} | |
207 | DF | .~.~.~> Inflatable |
208 | DF | .~.~.~> Circular or eliptically shaped retracting surface |
209 | DF | .~.~.~> Unitary wire construction |