US 12,263,284 B2
Flow path device and biological component bag system
Masatsugu Igarashi, Shizuoka (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Appl. No. 17/629,284
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
PCT Filed Jul. 17, 2020, PCT No. PCT/JP2020/027771
§ 371(c)(1), (2) Date Jan. 21, 2022,
PCT Pub. No. WO2021/015111, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 2019-134560 (JP), filed on Jul. 22, 2019.
Prior Publication US 2022/0241471 A1, Aug. 4, 2022
Int. Cl. A61M 1/02 (2006.01)
CPC A61M 1/0222 (2014.02) [A61M 1/029 (2013.01); A61M 1/0218 (2014.02); A61M 2202/0427 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A flow path device in which there are formed flow paths configured to allow at least one liquid of a biological fluid and a medicinal solution to flow therethrough, the flow path device comprising:
a device main body comprising:
a first sheet formed by a soft material; and
a second sheet formed by a soft material and that is superimposed on the first sheet, wherein the device main body comprises a first portion including:
a plurality of first flow paths;
a plurality of first ports at a first edge of the first portion and in communication with the plurality of first flow paths;
a single second flow path configured to communicate with the plurality of first flow paths; and
a second port in communication with the single second flow path and at a second edge of the first portion opposite the first edge;
a filter accommodating chamber provided in the single second flow path and in which there is accommodated a filter member configured to remove a predetermined biological component in the biological fluid; and
a third flow path through which the liquid having passed through the filter accommodating chamber flows;
wherein flow path sealed portions, which are configured to join the first sheet and the second sheet to each other in a liquid-tight manner, are provided in the device main body.