Hemodialysis patient data acquisition, management and analysis system

摘要

A hemodialysis patient data acquisition and management system resides on a host computer which receives information from one or more non-invasive, optical blood monitors associated with a hemodialysis system. When a patient is undergoing hemodialysis treatment, a sensor assembly monitors the patient's blood flowing through the hemodialysis system and a controller for the blood monitor generates data which includes at least an identification code for the patient undergoing the treatment on the respective system, and non-invasively determined blood data taken at the onset of the scheduled treatment, such as initial Hgb, HCT, and SAT values. A host computer communicates with the one or more optical blood monitors, preferably via a wireless network, and the patient's session commencement data is downloaded to the host computer. The host computer includes a patient database containing historical session commencement data for a plurality of patients, as well as screen displays for displaying historical data for individual patients, such as Hgb trends. The system also preferably provides a predictive algorithm for the patient's Hgb at the patient's next scheduled hemodialysis treatment session. The preferred system also includes software that provides a recommended dose of the anemia management drug for the patient.

主权项

1. An anemia management system for hemodialysis patients comprising:
at least one hemodialysis system for drawing blood from a patient, passing the drawn blood through extracorporeal tubing and through a dialyzer, and returning the dialyzed blood through extracorporeal tubing to the patient, the hemodialysis system comprising:
a blood chamber having an inlet and an outlet which are connected in line with the extracorporeal tubing of the hemodialysis system and a fluid passageway through which the drawn blood flows;a first photo emitter for emitting light at a first wavelength through the blood chamber and the drawn blood flowing through the blood chamber;a second photo emitter for emitting light at a second wavelength through the blood chamber and the drawn blood flowing through the blood chamber; andat least one photo detector for detecting the intensity of light at the first and second wavelength after it passes through the blood chamber and the drawn blood flowing through the blood chamber; a computing system, connected to the at least one hemodialysis system, the computing system comprising processor-executable instructions, stored on one or more non-transitory processor-readable media, and one or more processors for executing the processor-executable instructions, wherein the processor-executable instructions include instructions for:
receiving a signal representing the detected light intensity levels from the at least one hemodialysis system;determining a value representing the patient's hemoglobin level based on the received signal;storing the determined value in a patient database of the computing system;determining, based on information stored in the patient database, a predicted value for the patient's hemoglobin level at the onset of a next treatment session by applying a statistical model to stored patient data, where the predicted value is based on multiple instances of the patient's previous hemoglobin levels corresponding to measurements taken at the onset of a series of treatment sessions, multiple coefficients determined based on the statistical model with each coefficient corresponding to one of the multiple instances of the patient's previous hemoglobin levels, and at least one previously administered dosage of an erythropoiesis stimulating agent (ESA); determining a recommended ESA dosage for the patient based on the predicted value; and outputting the recommended ESA dosage via an output interface of the computing system.