Dialysate filter including an asymmetric microporous, hollow fiber membrane incorporating a polyimide
First Claim
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1. A filter comprising;
- an housing defining an interior chamber;
an inlet port connected to said housing;
an outlet port connected to said housing;
an access port connected to said housing; and
a bundle of asymmetric, microporous, hollow fiber membranes disposed within said interior chamber, said asymmetric, microporous, hollow fiber membranes comprising a polyimide polymer, said asymmetric, microporous, hollow fiber membranes including pores having a pore size range from about 0.005 μ
m to about 0.2 μ
m, wherein said asymmetric, microporous, hollow fiber membranes have a flux in excess of about 75×
10-5 ml/(min×
cm2 ×
mmHg); and
wherein said inlet port, said outlet port and said access port are in fluid communication with said bundle of hollow fiber membranes.
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Abstract
A dialysate filter including asymmetric, microporous, hollow fiber membranes incorporating a polyimide. The dialysate filter connects to the dialysis machine immediately before the dialyzer ensuring complete filtration of the dialysate, easy visual inspection, quick installation and removal, and easy disinfection of the filter.
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Citations
30 Claims
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1. A filter comprising;
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an housing defining an interior chamber; an inlet port connected to said housing; an outlet port connected to said housing; an access port connected to said housing; and a bundle of asymmetric, microporous, hollow fiber membranes disposed within said interior chamber, said asymmetric, microporous, hollow fiber membranes comprising a polyimide polymer, said asymmetric, microporous, hollow fiber membranes including pores having a pore size range from about 0.005 μ
m to about 0.2 μ
m, wherein said asymmetric, microporous, hollow fiber membranes have a flux in excess of about 75×
10-5 ml/(min×
cm2 ×
mmHg); andwherein said inlet port, said outlet port and said access port are in fluid communication with said bundle of hollow fiber membranes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A dialysis apparatus comprising:
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a dialysis system comprising and artificial kidney operatively connected to said dialysis system, said artificial kidney including a dialysate inlet port; a female to female connector; and a dialysate filter, said dialysate filter comprising; a bundle of asymmetric, microporous, hollow fiber membranes; a filter housing defining an interior chamber; a dialysate inlet port connected to said filter housing; a dialysate outlet port connected to said filter housing; a dialysate access port connected to said filter housing; and said bundle of asymmetric, microporous, hollow fiber membranes disposed within said interior chamber, said asymmetric microporous hollow fiber membranes comprising a polyimide polymer, said asymmetric, microporous, hollow fiber membranes including pores having a pore size range from about 0.005 μ
m to about 0.2 μ
m, and having a flux in excess of about 75×
10-5 ml/(min×
cm2 ×
mmHg);
said dialysate inlet port, said dialysate outlet port and said access port are in fluid communication with said bundle of hollow fiber membranes; andwherein the dialysate filter is located upstream of the artificial kidney and is connected through the female to female connector to the inlet port of said artificial kidney. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification