FLUID CIRCUIT FOR DELIVERY OF RENAL REPLACEMENT THERAPIES
First Claim
1. A flow loop for hemodialysis, comprising:
- a controlled compliant flow path for preparing fluids required for a hemodialysis therapy session from water wherein the controlled compliant flow path modifies water into any one of a solution for priming a hemodialysis system, a physiologically compatible solution for contacting blood, a physiologically compatible solution for infusion to a subject, and a solution for blood rinse back to a subject;
said controlled compliant flow path having a means for selectively metering in and metering out fluid from the flow path.
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Accused Products
Abstract
A flow loop for hemodialysis, hemodiafiltration and hemofiltration for the treatment of pathological conditions such as End Stage Renal Disease (ESRD) that has a controlled compliant flow path for preparing fluids required for a hemodialysis therapy session from water. The controlled compliant flow path modifies water into any one of a solution for priming a hemodialysis system, a physiologically compatible solution for contacting blood, a physiologically compatible solution for infusion to a subject, and a solution for blood rinse back to a subject. The controlled compliant flow path has a means for selectively metering in and metering out fluid from the flow path.
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Citations
69 Claims
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1. A flow loop for hemodialysis, comprising:
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a controlled compliant flow path for preparing fluids required for a hemodialysis therapy session from water wherein the controlled compliant flow path modifies water into any one of a solution for priming a hemodialysis system, a physiologically compatible solution for contacting blood, a physiologically compatible solution for infusion to a subject, and a solution for blood rinse back to a subject; said controlled compliant flow path having a means for selectively metering in and metering out fluid from the flow path. - View Dependent Claims (2, 3, 4, 5, 19, 20, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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6. A flow loop for hemodiafiltration, comprising:
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a controlled compliant flow path for preparing fluids required for a hemodiafiltration therapy session from water wherein the flow path modifies water into any one of a solution for priming a hemodiafiltration system, a physiologically compatible solution for contacting blood, a physiologically compatible solution for infusion to a subject, and a solution for blood rinse back to a subject; said controlled compliant flow path having a means for selectively metering in and metering out fluid from the controlled compliant path. - View Dependent Claims (7, 8, 9, 10, 11, 21, 22)
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12. A flow loop for hemofiltration, comprising:
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a controlled compliant flow path for preparing fluids required for a hemofiltration therapy session from water wherein the controlled compliant flow path modifies water into any one of a solution for priming a hemofiltration system, a physiologically compatible solution for infusion to a subject, a physiologically compatible solution for contacting blood, and a solution for blood rinse back to a subject; said controlled compliant flow path having a means for selectively metering in and metering out fluid from the controlled compliant flow path. - View Dependent Claims (13, 14, 15, 16, 17, 18, 23, 24)
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35. A method for preparing a fluid for conducting a hemodialysis, hemofiltration or hemodiafiltration treatment, comprising the steps of:
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providing a source of water to a system, where the system has a solution conduit flow path, an extracorporeal conduit flow path and a conditioning conduit flow path wherein the extracorporeal conduit flow path is in fluid communication with the solution conduit flow path through a semi-permeable membrane and the solution conduit flow path is in fluid communication with the conditioning conduit flow path; configuring the system to bypass the extracorporeal conduit flow path, the system having a bypass conduit flow path for conveyance of fluid through a first segment of the solution conduit flow path without contacting the semi-permeable membrane; conveying water from the source through a reduced cross-sectional area conduit to separate a first portion of a dissolved gas from the water; conveying water from the source through the conditioning conduit flow path; reconstituting an electrolyte source to generate a physiologically compatible fluid; conveying the physiologically compatible fluid through the first segment of the solution conduit flow path; wherein the physiologically compatible fluid is any one of a priming fluid, a flushing fluid for a dialyzer and/or an extracorporeal flow path, dialysate, replacement fluid, a reserve for bolus infusion, or blood rinse back. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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Specification