Fig. 3From: Translating patient needs into medical device development: co-design of a photoprotection visor for Xeroderma Pigmentosum using qualitative interviewsImages of prototypes. All prototype visors were designed and manufactured at Cardiff University. a Prototype 2 ‘On the face’—3D printed parts sealed together with hydrophilic film over the mouth. b Prototype 3 ‘Off the face’—rim added to increase space away from faceBack to article page