US 12,226,716 B2
Target cell capture filter and target cell capture method
Yuta Nakashima, Kumamoto (JP); Yusuke Kitamura, Kumamoto (JP); and Keiichiro Yasuda, Kumamoto (JP)
Assigned to Ogic Technologies Co., Ltd., Kumamoto (JP)
Appl. No. 17/612,133
Filed by Ogic Technologies Co., Ltd., Kumamoto (JP)
PCT Filed May 19, 2020, PCT No. PCT/JP2020/019715
§ 371(c)(1), (2) Date Nov. 17, 2021,
PCT Pub. No. WO2020/241365, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 2019-098037 (JP), filed on May 24, 2019.
Prior Publication US 2022/0226754 A1, Jul. 21, 2022
Int. Cl. B01D 29/01 (2006.01); G01N 1/10 (2006.01); G01N 1/40 (2006.01)
CPC B01D 29/012 (2013.01) [G01N 1/10 (2013.01); G01N 1/4077 (2013.01); B01D 2201/282 (2013.01); G01N 2001/1056 (2013.01); G01N 2001/4088 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A target cell capture filter that has a capture face for capturing target cells in a liquid, the target cell capture filter comprising a plurality of notches that allow a part of the capture face to be elastically deformed in a direction that is orthogonal to the capture face, thereby providing gaps,
wherein the plurality of notches are arranged so as to form a part of a concentric circle group including a plurality of circles having different radii and a shared center,
wherein the plurality of circles comprise at least a first circle having a first radius a second circle having a second radius larger than the first radius, and a third circle having a third radius larger than the second radius,
wherein a difference in length between the second radius and the first radius is greater than a difference in length between the third radius and the second radius, and
wherein each one of the plurality of notches has the same longitudinal length and the same width.