US 12,436,082 B2
Microchip, sample sorting kit, and microparticle sorting device
Naohisa Sakamoto, Kanagawa (JP); Tatsumi Ito, Kanagawa (JP); Shinji Tashiro, Tokyo (JP); Nobuhiko Nishiki, Kanagawa (JP); Naohide Miyamoto, Kanagawa (JP); Kentaro Kuriyama, Kanagawa (JP); Kazuya Takahashi, Kanagawa (JP); Yoichi Katsumoto, Tokyo (JP); and Atsushi Nakamura, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 17/776,983
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Nov. 13, 2020, PCT No. PCT/JP2020/042361
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/100618, PCT Pub. Date May 27, 2021.
Claims priority of application No. 2019-210029 (JP), filed on Nov. 20, 2019; and application No. 2020-139510 (JP), filed on Aug. 20, 2020.
Prior Publication US 2022/0412870 A1, Dec. 29, 2022
Int. Cl. G01N 15/1404 (2024.01); G01N 15/14 (2024.01); G01N 15/149 (2024.01)
CPC G01N 15/1404 (2013.01) [G01N 15/1484 (2013.01); G01N 2015/1415 (2013.01); G01N 15/149 (2024.01)] 17 Claims
OG exemplary drawing
 
1. A microchip having a plate shape and comprising:
a sample liquid inlet into which a sample liquid is introduced;
a main flow path through which the sample liquid introduced from the sample liquid inlet flows;
a sorting flow path into which a target sample is sorted from the sample liquid, wherein the sample liquid inlet and a terminal end of the sorting flow path are formed on a same side surface; and
an orifice part coaxial with the main flow path and connected to the sorting flow path,
wherein a cross-sectional area of the sorting flow path continuously increases along a traveling direction of a liquid flow up to a predetermined position, and
wherein a side wall of the sorting flow path on a side connected to the orifice part has two different curvatures.