公开(公告)号：US20240090799A1

公开(公告)日：2024-03-21

申请号：US18267243

申请日：2021-12-09

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： MARK THOMAS JOHNSON ,  RON MARTINUS LAURENTIUS LIESHOUT ,  LUTZ CHRISTIAN GERHARDT ,  EDUARD GERARD MARIE PELSSERS

IPC: A61B5/145 ,  A61B5/1477

CPC classification number: A61B5/14517 ,  A61B5/14546 ,  A61B5/1477

Abstract: A device (1) for determining sweat parameters of a user is provided, which device comprises a microfluidic structure (10) having a collection chamber (16) configured to collect sweat from a first skin area (i), and a sensor (12) configured to determine a sweat parameter from sweat from the first skin area (i). The device also comprises an evaporation control chamber (14), which is connected to the microfluidic structure (10), configured to utilize fluid collected at a second area (ii) to moisten the microfluidic structure (10). The moistening of the microfluidic structure (10) aims to increase the available sweat for the sensor to determine a sweat parameter, by increasing the humidity inside the microfluidic structure (10) and thus, decreasing the evaporation of sweat. A method for determining sweat parameters of a user is also provided.