US 12,332,274 B2
Disposable flow velocity measuring device having predetermined sensitivity to pressure change by using various types of ultra-thin films, and microfluidic device capable of removing micro bubbles inside channel by using support patterns protruding from porous ultra-thin film and manufacturing method therefor
Ki-Ho Han, Busan (KR); Hyung-Seok Cho, Busan (KR); and Jin-Ho Kim, Busan (KR)
Assigned to INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Gimhae-si (KR)
Filed by INJE UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION, Gimhae-si (KR)
Filed on Apr. 29, 2024, as Appl. No. 18/649,988.
Application 18/649,988 is a division of application No. 17/144,301, filed on Jan. 8, 2021, granted, now 12,105,116.
Application 17/144,301 is a continuation of application No. PCT/KR2019/011810, filed on Sep. 11, 2019.
Claims priority of application No. 10-2018-0109380 (KR), filed on Sep. 13, 2018; and application No. 10-2019-0000378 (KR), filed on Jan. 2, 2019.
Prior Publication US 2024/0280604 A1, Aug. 22, 2024
Int. Cl. G01P 5/12 (2006.01); B01L 3/00 (2006.01); G01F 1/692 (2006.01)
CPC G01P 5/12 (2013.01) [B01L 3/502707 (2013.01); B01L 3/502746 (2013.01); G01F 1/692 (2013.01); B01L 3/502723 (2013.01); B01L 2200/0684 (2013.01); B01L 2200/12 (2013.01); B01L 2300/0645 (2013.01); B01L 2300/0681 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0887 (2013.01); B01L 2300/123 (2013.01); B01L 2300/165 (2013.01); B01L 2300/1827 (2013.01); B01L 2400/049 (2013.01); B01L 2400/086 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A microfluidic device, comprising:
an upper panel including a microfluidic channel through which fluid passes;
a porous ultra-thin film which is attached on a lower surface of the microfluidic channel to be integrated with the upper panel and includes a support pattern protruding to remove micro bubbles included in fluid passing through the microfluidic channel in real time;
a lower panel which is in contact with lower surfaces of the upper panel and the porous ultra-thin film; and
a negative pressure forming unit which forms a negative pressure between the microfluidic channel to which the porous ultra-thin film is attached and the lower panel.