Carbon dioxide gas removal from a fluid circuit of a dialysis device
First Claim
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1. A degassing device comprising:
- a. a first housing having an inlet, a first length and an inner wall having an upper end, defining a first inner chamber;
b. a second housing positioned within said first inner chamber in an annular, concentric relation to the first housing wherein the second housing has an outer wall, an outlet, a second length and an inner wall defining a second inner chamber, wherein the second length is less than the first length, and wherein a space between the first length and second length defines a gap;
c. a flowpath through said degassing device wherein said flowpath is defined by the inlet, the gap, and the outlet; and
d. a hydrophobic membrane positioned proximate to said gap and over the upper end of the first housing.
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Abstract
The present invention is directed to degassing devices for dialysate circuits. One embodiment has a first housing and a second housing positioned within the first housing in an annular relationship. A second embodiment comprises a dialysate regeneration system with urease, a dialyzer, and a housing with an external wall, where the external wall is exposed to atmosphere and comprises a material that passes gas but does not pass liquid and where the housing is positioned between the urease and dialyzer.
134 Citations
11 Claims
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1. A degassing device comprising:
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a. a first housing having an inlet, a first length and an inner wall having an upper end, defining a first inner chamber; b. a second housing positioned within said first inner chamber in an annular, concentric relation to the first housing wherein the second housing has an outer wall, an outlet, a second length and an inner wall defining a second inner chamber, wherein the second length is less than the first length, and wherein a space between the first length and second length defines a gap; c. a flowpath through said degassing device wherein said flowpath is defined by the inlet, the gap, and the outlet; and d. a hydrophobic membrane positioned proximate to said gap and over the upper end of the first housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification