US 12,329,929 B2
Filtration device
Mitsuru Jokaji, Minami-Alps (JP); and Takeshi Toyama, Minami-Alps (JP)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 9, 2021, as Appl. No. 17/471,065.
Application 17/471,065 is a continuation of application No. PCT/JP2020/002943, filed on Jan. 28, 2020.
Claims priority of application No. 2019-045139 (JP), filed on Mar. 12, 2019.
Prior Publication US 2021/0402086 A1, Dec. 30, 2021
Int. Cl. A61M 5/165 (2006.01); A61M 5/38 (2006.01)
CPC A61M 5/165 (2013.01) [A61M 5/38 (2013.01); A61M 2005/1652 (2013.01); A61M 2207/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A filtration device comprising:
a housing that defines a liquid flow path, the housing comprising:
a first housing member comprising:
a top plate portion,
an annular protruding portion protruding from the top plate portion, and
an inflow port portion protruding radially outward from the annular protruding portion and defining a liquid inflow port of the liquid flow path, wherein the top plate portion includes a top plate central portion located inward of the annular protruding portion, and a top plate outer edge portion located outward of the annular protruding portion;
a second housing member comprising:
a main body plate portion, and
an outflow port portion protruding from the main body plate portion and defining a liquid outflow port of the liquid flow path, wherein the main body plate portion includes a main body plate central portion that faces the top plate central portion, and a main body plate outer edge portion located outward of the main body plate central portion, and
a joining member that is located in a gap between the top plate outer edge portion and the main body plate outer edge portion, wherein the joining member joins the first housing member and the second housing member; wherein the joining member is in direct contact with the top plate outer edge portion and the joining member is in direct contact the main body plate outer edge portion; and
a filtration sheet that separates the liquid flow path into a flow path upstream side and a flow path downstream side, wherein the filtration sheet is sandwiched by a surface of the annular protruding portion of the first housing member and a surface of the outer edge portion of the second housing member.