US 11,911,150 B2
Component concentration measurement device
Katsuhiro Ajito, Tokyo (JP); Michiko Seyama, Tokyo (JP); Daichi Matsunaga, Tokyo (JP); Masahito Nakamura, Tokyo (JP); and Yujiro Tanaka, Tokyo (JP)
Assigned to Nippon Telegraph and Telephone Corporation, Tokyo (JP)
Appl. No. 17/047,609
Filed by Nippon Telegraph and Telephone Corporation, Tokyo (JP)
PCT Filed Apr. 5, 2019, PCT No. PCT/JP2019/015141
§ 371(c)(1), (2) Date Oct. 14, 2020,
PCT Pub. No. WO2019/203029, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 2018-078215 (JP), filed on Apr. 16, 2018.
Prior Publication US 2021/0121105 A1, Apr. 29, 2021
Int. Cl. A61B 5/145 (2006.01); A61B 5/00 (2006.01)
CPC A61B 5/14532 (2013.01) [A61B 5/0095 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A component concentration measurement device comprising:
a light irradiator configured to irradiate a measurement part with a light beam, the light beam having a wavelength absorbed by glucose, wherein the light irradiator irradiates the measurement part by scanning the light beam 2-dimensionally, wherein the light irradiator moves the light beam to a new location of the measurement part from each location of the measurement part before the light beam increases a temperature of tissues of the measurement part; and
a detector configured to detect a photoacoustic signal generated from the measurement part in response to being irradiated with the light beam.