Fecha de publicación: -- Fuente: Wipo "digitalization" Methods, devices, systems and kits for obtaining blood samples are provided. Devices include a cuff, a pressure source, and a timing mechanism. The methods include placing a cuff on a digit of a subject, inflating the cuff, and obtaining a small volume blood sample. The methods further include warming a digit lancing a digit pulsing the cuff; and providing a signal indicating the end of the sample collection time period.