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AssigneeTerumo Kabushiki Kaisha
InventorsShingo Takesawa, Noriyuki Hosoya, Masatomi Sasaki
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A dialyzer provided in a cylindrical housing with a bundle of hollow fiber membranes and first flow paths and second flow paths separated from each other by said hollow fiber membranes and allowed to effect dialysis and ultrafiltration through the medium of said hollow fiber membranes between a body liquid flowing through said first flow paths and a dialyzing liquid flowing through said second flow paths, characterized in that a constricted part is formed halfway in the length of said second flow paths with a material capable of being swelled by said dialyzing liquid so as to confer a difference of pressure on said dialyzing liquid on the upstream side and the downstream side of said dialyzing liquid relative to said constricted part.
A dialyzer comprising a cylindrical housing in which is positioned a bundle of hollow fiber membranes, first flow paths and second flow paths separated from each other by said hollow fiber membranes for effecting dialysis and ultrafiltration through the medium of said hollow fiber membranes between a body liquid flowing through said first flow paths and a dialyzing liquid flowing through said second flow paths, a body liquid inlet and body liquid outlet in fluid communication with the first flow paths, a dialyzing liquid inlet and a dialyzing liquid outlet in fluid communication with the second flow paths, and a constricted part formed halfway along the length of said second flow paths with a material capable of being swelled by said dialyzing liquid so as to confer a difference of pressure on said dialyzing liquid on an upstream side and a downstream side of said dialyzing liquid relative to said constricted part.
Dependencies are inferred from the claim text.