Title:
HOLLOW FIBER MEMBRANE TYPE DIALYSER
Document Type and Number:
Japanese Patent JP3257998
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To allow blood dialysis of large amount liquid displacement without requiring any dedicated device by setting an average value of pressure difference of dialyzing fluid between upstream and downstream of a second flow passage where the dialyzing fluid flows.
SOLUTION: Second flow passage 7 where the dialyzing fluid flows are formed in clearances between bundles 4 of hollow fiber membranes 41 and inner peripheral surface of a cylindrical body 31 and clearances between adjacent hollow fiber membranes 41 in a space surrounded with the cylindrical body 31 of a housing 3 and bulkheads 51, 52. The upstream of these second flow passages 7 is communicated with an inlet 36 of dialyzing fluid, and the downstream is communicated with an outlet 37 of the dialyzing fluid. Pressure of the dialyzing fluid flowing in these second flow passage 7 is higher than pressure of blood at a corresponding portion of first flow passages 6 on the upstream side 71 of a bottleneck portion 8, and is lower on the downstream side 72. An average value of pressure difference between the upstream side 71 and the downstream side 72 of these second flow passages 7 is 10-100 mmHg. Thus, blood dialysis of large amount liquid displacement can be performed without requiring any dedicated device.
Inventors:
Shingo Takezawa
Noriyuki Hosoya
Masatomi Sasaki
Noriyuki Hosoya
Masatomi Sasaki
Application Number:
JP26641799A
Publication Date:
February 18, 2002
Filing Date:
September 04, 1995
Export Citation:
Assignee:
Terumo Corporation
International Classes:
A61M1/14; A61M1/18; A61M1/34; (IPC1-7): A61M1/14; A61M1/18; A61M1/34
Domestic Patent References:
| JP759849A | ||||
| JP7163659A | ||||
| JP175440U | ||||
| JP548705B2 | ||||
| JP5622911Y1 |