Extracorporeal renal replacement modeling system
First Claim
1. An extracorporeal renal replacement system for fluid removal from the blood of a patient, comprising:
- a pump capable of pumping a liquid selected from the group consisting of infusate, drained fluid, and blood in the extracorporeal renal replacement system;
a flow rate sensor for measuring the flow rate of fluid in the system generated by the pump, the flow rate sensor providing flow rate data signals correlated to the fluid flow rate;
a patient sensor for measuring a physiological condition of the patient, the patient sensor providing patient sensor data signals correlated to the physiological condition; and
a controller in communication with the pump, the flow rate sensor and the patient sensor, the controller configured to receive the flow rate data signals and the patient sensor data signals and analyze the flow rate data signals and the patient parameter data signals using a model, and then to initiate generation an output signal for the pump to adjust the flow rate of liquid generated by the pump for regulating fluid removal from the patient'"'"'s blood.
1 Assignment
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Accused Products
Abstract
A system, program product and method continuously optimize an ultrafiltration rate during an extracorporeal renal replacement process by modeling physiological and actual rate data. The system maps the sensed, physiological data to a mathematical model to assess the data in terms of the ultrafiltration rate. The model provides parameters used to predict where the treatment is headed based on current conditions. The system processes the parameters in terms of preset criteria to generate the optimized ultrafiltration rate. Where the system is networked, communication of the data may be accomplished using remote and online communication techniques.
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Citations
20 Claims
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1. An extracorporeal renal replacement system for fluid removal from the blood of a patient, comprising:
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a pump capable of pumping a liquid selected from the group consisting of infusate, drained fluid, and blood in the extracorporeal renal replacement system;
a flow rate sensor for measuring the flow rate of fluid in the system generated by the pump, the flow rate sensor providing flow rate data signals correlated to the fluid flow rate;
a patient sensor for measuring a physiological condition of the patient, the patient sensor providing patient sensor data signals correlated to the physiological condition; and
a controller in communication with the pump, the flow rate sensor and the patient sensor, the controller configured to receive the flow rate data signals and the patient sensor data signals and analyze the flow rate data signals and the patient parameter data signals using a model, and then to initiate generation an output signal for the pump to adjust the flow rate of liquid generated by the pump for regulating fluid removal from the patient'"'"'s blood. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of regulating fluid removal from a patient'"'"'s blood during an extracorporeal renal replacement process, the method comprising:
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receiving flow rate data from a flow rate sensor;
receiving physiological condition data from a patient sensor;
using a model to process the flow rate data and the physiological condition data to determine a model parameter;
using the model parameter to generate an output signal configured to adjust the flow rate realized by a pump; and
pumping according to the adjusted flow rate. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A program product, comprising:
program code for use with a controller configured to regulate fluid removal from a patient'"'"'s blood during an extracorporeal renal replacement process, the program code configured to cause the controller to receive flow rate data from a flow rate sensor;
receive physiological condition data from a patient sensor;
use a model to process the flow rate data and the physiological condition data to determine a model parameter; and
use the model parameter to generate an output signal configured to adjust the flow rate realized by a pump; and
a signal bearing medium bearing the program code. - View Dependent Claims (20)
Specification