Automated peritoneal dialysis cycler and methods of use
First Claim
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1. A method of performing a dialysis treatment comprising:
- infusing an infusion volume of dialysis solution into a patient;
draining fluid from a patient;
identifying an indicator that the draining may be complete;
measuring the volume of drained fluid;
calculating a minimum drain volume, wherein the minimum drain volume is a predetermined percentage of an expected drain volume, wherein the expected drain volume comprises the infusion volume and an estimated residual patient volume; and
determining, using one or more computing devices, if the measured volume of drained fluid is less than the minimum drain volume.
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Abstract
Automated peritoneal dialysis (APD) cycler systems and methods are disclosed. The APD cycler can include a heater tray with load cells configured to measure the weight of fluid contained within a heater bag and/or a drain bag. The load cells can be toggleable between enabled and disabled configurations. The APD cycler can include a pressure-based volume measurement system, which can be used to confirm measurements made by the load cells. In some embodiments, the APD cycler can have algorithms for tracking an estimated patient volume to prevent overfilling the patient.
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Citations
20 Claims
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1. A method of performing a dialysis treatment comprising:
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infusing an infusion volume of dialysis solution into a patient; draining fluid from a patient; identifying an indicator that the draining may be complete; measuring the volume of drained fluid; calculating a minimum drain volume, wherein the minimum drain volume is a predetermined percentage of an expected drain volume, wherein the expected drain volume comprises the infusion volume and an estimated residual patient volume; and determining, using one or more computing devices, if the measured volume of drained fluid is less than the minimum drain volume. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A dialysis system comprising:
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an infusion system configured to infuse an infusion volume of dialysis solution into a patient; a drainage system configured to drain fluid from the patient into a drain container; a controller configured to; identify an indicator that a drain may be complete; determine a drain volume of the fluid in the drain container; determine a minimum drain volume, wherein the minimum drain volume is a predetermined percentage of an expected drain volume, wherein the expected drain volume comprises the infusion volume and an estimated residual patient volume; and determine if the drain volume is less than the minimum drain volume. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification