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US 4,231,877 AGranted
Blood dialyzer
AssigneeKuraray Co., Ltd.
InventorsKazuhisa Yamauchi, Taku Tanaka, Syuji Kawai, Hirokuni Tanii
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Abstract
The invention relates to a blood dialyzing apparatus comprising at least one bundle of semi-permeable hollow filaments and a cylindrical housing positioning said bundle of filaments and having a large length to inside diameter ratio of 7 to 10.
Claims4
An improved blood dialyzing apparatus comprising the combination of a cylindrical housing and at least one bundle of semi-permeable hollow filaments positioned in said housing, a blood inlet and outlet in respective ends of said housing, and a dialysate inlet and outlet in the side wall of said housing, the improvement wherein:
- said housing has an inside diameter in the range of 20 to 50 mm, and an effective length in the range of 200 to 350 mm, the ratio of the effective length of said housing to the inside diameter thereof being within the range of 7 to 10.
Dependencies are inferred from the claim text.