physical restraint handcuff restraint http://purl.bioontology.org/ontology/SNOMEDCT/22679001 https://en.wikipedia.org/wiki/Handcuffs https://www.wikidata.org/wiki/Q15808 Any of various restraint devices designed to secure an individual's wrists in proximity to each other. They comprise two parts, linked together by a chain, a hinge, or rigid bar. Each cuff has a rotating arm which engages with a ratchet that prevents it from being opened once closed around a person's wrist. cuff restraint handcuff handcuff restraints