Dialysis bag system
First Claim
Patent Images
1. A disposable dialysis system comprising:
- at least one fluid flow channel having an inlet port and an outlet port;
at least one semi-permeable membrane residing substantially within the at least one fluid flow channel, one end of the semi-permeable membrane having a port for providing access to an interior of the semi-permeable membrane;
a pump;
a dialysis fluid source;
a spent dialysis fluid reservoir;
inlet tubes fluidly connecting the dialysis fluid source to an inlet port of one of the at least one flow channel; and
outlet tubes fluidly connecting-an outlet port of one of the at least one flow channel to the spent dialysis fluid reservoir,wherein the pump cooperates with one of the group consisting of the inlet tubes and the outlet tubes to provide propulsion to dialysis fluid in the tubes.
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Abstract
A disposable mass transfer system includes a source of dialysis fluid, a waste fluid reservoir, at least one semi-permeable tubular membrane residing in at least one fluid flow channel carrying a flow of a dialysis fluid, and a configurable pump and tubing. The pump and tubing may be configured to pump fresh dialysis fluid into the fluid flow channel, or may be configured to re-circulate partially spent dialysis fluid through the fluid flow channel. The fluid flow channel may be the interior of a flexible sealed reservoir, or may be a semi-rigid or rigid tubular enclosure.
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Citations
12 Claims
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1. A disposable dialysis system comprising:
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at least one fluid flow channel having an inlet port and an outlet port; at least one semi-permeable membrane residing substantially within the at least one fluid flow channel, one end of the semi-permeable membrane having a port for providing access to an interior of the semi-permeable membrane; a pump; a dialysis fluid source; a spent dialysis fluid reservoir; inlet tubes fluidly connecting the dialysis fluid source to an inlet port of one of the at least one flow channel; and outlet tubes fluidly connecting-an outlet port of one of the at least one flow channel to the spent dialysis fluid reservoir, wherein the pump cooperates with one of the group consisting of the inlet tubes and the outlet tubes to provide propulsion to dialysis fluid in the tubes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A disposable dialysis system comprising:
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two sequentially connected fluid flow channels having an inlet port and an outlet port; two semi-permeable membranes, one residing substantially within each of the fluid flow channels, an exposed end of each of the semi-permeable membranes having a port for providing access to an interior of the semi-permeable membranes; a dialysis fluid source; a spent dialysis fluid reservoir; inlet tubes fluidly connecting the dialysis fluid source to the inlet port; outlet tubes fluidly connecting the outlet port and the spent dialysis fluid reservoir; a shunt tube fluidly connected between the inlet tubes and the outlet tubes by a first “
T”
residing in series with the inlet tubes and a second “
T”
residing in series with the outlet tubes.a pump residing between one of the “
T”
s and one of the inlet port and the outlet port; anda first on/off valve cooperating with the inlet tubes between the dialysis fluid source and the first “
T”
to control an inlet flow, a second on/off valve cooperating with the outlet tubes between the second “
T” and
the spent dialysis fluid reservoir to control an outlet flow, and a third on/off valve cooperating with the shunt tube between the “
T”
s to control a shunt flow,wherein the pump cooperates with one of the group consisting of the inlet tubes and the outlet tubes to provide propulsion to dialysis fluid in the tubes.
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12. A disposable dialysis system comprising:
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a fluid flow channel having an inlet port and an outlet port; a semi-permeable membrane residing substantially within the fluid flow channel, an exposed end of the semi-permeable membrane having a port for providing access to an interior of the semi-permeable membrane; a dialysis fluid source; a spent dialysis fluid reservoir; inlet tubes fluidly connecting the dialysis fluid source to the inlet port; outlet tubes fluidly connecting the outlet port and the spent dialysis fluid reservoir; a shunt tube fluidly connected between the inlet tubes and the outlet tubes by a first “
T”
residing in series with the inlet tubes and a second “
T”
residing in series with the outlet tubes.a pump residing between one of the “
T”
s and one of the inlet port and the outlet port; anda first on/off valve cooperating with the inlet tubes between the dialysis fluid source and the first “
T”
to control an inlet flow, a second on/off valve cooperating with the outlet tubes between the second “
T” and
the spent dialysis fluid reservoir to control an outlet flow, and a third on/off valve cooperating with the shunt tube between the “
T”
s to control a shunt flow,wherein the pump cooperates with one of the group consisting of the inlet tubes and the outlet tubes to provide propulsion to dialysis fluid in the tubes.
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Specification