Intersession monitoring for blood fluid removal therapy
First Claim
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1. A method of using a blood fluid removal system for tracking one or more physiological parameters of a patient, wherein the blood fluid removal system comprises:
- (a) a blood fluid removal medium configured to remove blood from the patient, wherein the blood enters the medium, a fluid contained in the blood is removed from the blood, and the blood exits the medium;
(b) one or more control elements configured to control (i) a rate at which the medium removes fluid from the blood or (ii) concentration of electrolytes or pH in the blood that exits the medium;
(c) one or more sensors configured to monitor the one or more physiological parameters of the patient wherein the physiological parameters are one or more selected from the group consisting of blood pressure, heart rate, pH and electrolyte concentration, the one or more sensors sensing signals from one or more of the blood and a tissue of the patient; and
(d) control electronics comprising memory and a processor, wherein the control electronics are in operable communication with the one or more sensors and are operably coupled to the one or more control elements, wherein the control electronics are programmed to carry out the method of or for tracking the one or more physiological parameters of the patient, comprising;
storing system parameters from a first blood fluid removal session in memory;
acquiring a first set of data regarding the one or more physiological parameters of the patient following the first session but before a second blood fluid removal session;
storing the first data set in a most effective to date data set in memory;
associating the first system parameters in an increased effectiveness lookup table with the first data set;
storing system parameters from the second blood fluid removal session in memory;
acquiring a second set of data regarding the one or more physiological parameters of the patient following the second blood fluid removal session; and
if at least one value of the second data set from the second blood fluid removal session is closer to a target value than a corresponding at least one value of the first data set from the first blood fluid removal session;
replacing the first data set in the most effective to date data set in memory with the second data set;
storing in the increased effectiveness lookup table data regarding the second data set; and
associating data regarding the second system parameters with the second data set.
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Abstract
Methods for monitoring patient parameters and blood fluid removal system parameters include identifying those system parameters that result in improved patient parameters or in worsened patent parameters. By comparing the patient'"'"'s current parameters to past parameters in response to system parameters or changes in system parameters, a blood fluid removal system may be able to avoid future use of parameters that may harm the patient and may be able to learn which parameters are likely to be most effective in treating the patient in a blood fluid removal session.
21 Citations
13 Claims
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1. A method of using a blood fluid removal system for tracking one or more physiological parameters of a patient, wherein the blood fluid removal system comprises:
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(a) a blood fluid removal medium configured to remove blood from the patient, wherein the blood enters the medium, a fluid contained in the blood is removed from the blood, and the blood exits the medium; (b) one or more control elements configured to control (i) a rate at which the medium removes fluid from the blood or (ii) concentration of electrolytes or pH in the blood that exits the medium; (c) one or more sensors configured to monitor the one or more physiological parameters of the patient wherein the physiological parameters are one or more selected from the group consisting of blood pressure, heart rate, pH and electrolyte concentration, the one or more sensors sensing signals from one or more of the blood and a tissue of the patient; and (d) control electronics comprising memory and a processor, wherein the control electronics are in operable communication with the one or more sensors and are operably coupled to the one or more control elements, wherein the control electronics are programmed to carry out the method of or for tracking the one or more physiological parameters of the patient, comprising; storing system parameters from a first blood fluid removal session in memory; acquiring a first set of data regarding the one or more physiological parameters of the patient following the first session but before a second blood fluid removal session; storing the first data set in a most effective to date data set in memory; associating the first system parameters in an increased effectiveness lookup table with the first data set; storing system parameters from the second blood fluid removal session in memory; acquiring a second set of data regarding the one or more physiological parameters of the patient following the second blood fluid removal session; and if at least one value of the second data set from the second blood fluid removal session is closer to a target value than a corresponding at least one value of the first data set from the first blood fluid removal session;
replacing the first data set in the most effective to date data set in memory with the second data set;
storing in the increased effectiveness lookup table data regarding the second data set; andassociating data regarding the second system parameters with the second data set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A blood fluid removal system, comprising:
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a blood fluid removal medium configured to remove blood from a patient, wherein the blood enters the medium, a fluid contained in the blood is removed from the blood, and the blood exits the medium; one or more control elements configured to control (i) a rate at which the medium removes fluid from the blood or (ii) concentration of electrolytes or pH in the blood that exits the medium; one or more sensors configured to monitor one or more physiological parameters of the patient wherein the physiological parameters are one or more selected from the group consisting of blood pressure, heart rate, pH and electrolyte concentration, the one or more sensors sensing signals from one or more of the blood and a tissue of the patient; and control electronics comprising memory and a processor, wherein the control electronics are in operable communication with the one or more sensors and are operably coupled to the one or more control elements, wherein the control electronics are programmed to carry out a first method of tracking the one or more physiological parameters of the patient comprising steps of; storing system parameters from a first blood fluid removal session in memory; acquiring a first set of data regarding the one or more physiological parameters of the patient following the first session but before a second blood fluid removal session;
storing the first data set in a most effective to date data set in memory;associating the first system parameters in an increased effectiveness lookup table with the first data set;
storing system parameters from the second blood fluid removal session in memory;
acquiring a second set of data regarding the one or more physiological parameters of the patient following the second blood fluid removal session; andif at least one value of the second data set from the second blood fluid removal session is closer to a target value than a corresponding at least one value of the first data set from the first blood fluid removal session, replacing the first data set in the most effective to date data set in memory with the second data set, storing in the increased effectiveness lookup table data regarding the second data set, and associating data regarding the second system parameters with the second data set. - View Dependent Claims (10, 11, 13)
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12. A blood fluid removal system comprising:
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a blood fluid removal medium configured to remove blood from a patient, wherein the blood enters the medium, a fluid contained in the blood is removed from the blood, and the blood exits the medium; one or more control elements configured to control (i) a rate at which the medium removes fluid from the blood or (ii) concentration of electrolytes or pH in the blood that exits the medium; one or more sensors configured to monitor one or more physiological parameters of the patient, wherein the one or more sensors sense signals from one or more of the blood or a tissue of the patient; and control electronics comprising memory and a processor, wherein the control electronics are in operable communication with the one or more sensors and are operably coupled to the one or more control elements, wherein the control electronics are programmed to track the one or more physiological parameters of the patient to (i) store system parameters from a first blood fluid removal session in the memory;
(ii) acquire a first set of data regarding the one or more physiological parameters of the patient following the first blood fluid removal session but before a second blood fluid removal session;
(iii) store the first data set in a most effective to date data set in memory;
(iv) associate the first system parameters in an increased effectiveness lookup table with the first data set;
(v) store system parameters from the second blood fluid removal session in memory;
(vi) acquire a second set of data regarding the one or more physiological parameters of the patient following the second blood fluid removal session; and
(vii) if at least one value of the second data set from the second blood fluid removal session is closer to a target value than a corresponding at least one value of the first data set from the first blood fluid removal session, replace the first data set in the most effective to date data set in memory with the second data set, store in the increased effectiveness lookup table data regarding the second data set, and associate data regarding the second system parameters with the second data set.
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Specification