A HUMAN NECESSITIES
A61 MEDICAL OR VETERINARY SCIENCE; HYGIENE
A61B DIAGNOSIS; SURGERY; IDENTIFICATION
A61B5/00 Measuring for diagnostic purposes; Identification of persons
A61B5/68 Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
A61B5/6801 specially adapted to be attached to or worn on the body surface
A61B5/6802 Sensor mounted on worn items
A61B5/681 Wristwatch-type devices