| umls-concept:C0183016 | skos:definition | UMD: A frame-like mechanism to which retractor blades designed to hold the anatomic structures of the urinary bladder are mounted. The retractors are either blunt or hook-like (sometimes multiple hooks). The retractors are used to hold back the borders of an incision, an organ or tissue, etc., during a surgical intervention. | lld:umls |
