METHOD AND APPARATUS FOR MONITORING ANESTHESIA DRUG DOSAGES, CONCENTRATIONS, AND EFFECTS USING N-DIMENSIONAL REPRESENTATIONS OF CRITICAL FUNCTIONS

• US 20080033661A1
• Filed: 08/22/2007
• Published: 02/07/2008
• Est. Priority Date: 12/07/1999
• Status: Abandoned Application

• Current Assignee: University of Utah Research Foundation (State of Utah)
• Original Assignee: University of Utah (State of Utah)
• Inventors: Bermudez, Julio, Holmes, Michael, Prenzel, Haunke, Strayer, David, Albert, Robert, Syroid, Noah, Drews, Frank, Westenskow, Dwayne, Agutter, James
• Application Number:
  US11/843,524
• Publication Number:
  US 20080033661A1
• Time in Patent Office: Days
• US Class Current: 702/22
• CPC Class Codes: A61B 5/00 Measuring for diagnostic purposes radiation diagnosis A61B6/00; diagnosis by ultrasonic, sonic or infrasonic waves A61B8/00; Identification of persons
• CPC Class Codes: A61M 16/021 operated by electrical means A61M16/202 – A61M16/205 take precedence
• CPC Class Codes: A61M 2202/048 Anaesthetics see also A61M19/00
• CPC Class Codes: A61M 2205/3576 with non implanted data transmission devices, e.g. using external transmitter or receiver
• CPC Class Codes: A61M 2205/6072 Bar codes
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: G09B 23/28 for medicine
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

A method, system and apparatus for the monitoring, diagnosis and evaluation of the state of a dynamic system is disclosed. This method and system provides the processing means for receiving sensed and/or simulated data, converting such data into a displayable object format and displaying such objects in a manner such that the interrelationships between the respective variables can be correlated and identified by a user. This invention provides for the rapid cognitive grasp of the overall state of a critical function with respect to a dynamic system. The system provides for displayed objects, which change in real-time to show the changes of the functions of the system. It is a highly flexible system which works with a wide variety of applications, including biological systems, environmental systems, engineering systems, economic systems, mechanical systems, chemical systems and the like. In particular, this invention is directed to the processing and display of drug data for the use of doctors in the process of monitoring or administering drugs to patients.

Claims

1-14. -14. (canceled)

15. A system for visually displaying pharmacokinetic and pharmacodynamic effects as a function of time, comprising:

a drug delivery system configured to digitally record a plurality of drug delivery information data corresponding to at least drug type, initial drug dosage, and drug delivery method onto a data channel;

a data stream device in data communication with the drug delivery device, wherein the data communication includes transmission of the data channel;

a drug display monitor in data communication with the data stream device, wherein the data communication with the data stream device includes transmission of the data channel, and wherein the drug display monitor further includes;

a data decoder and a dosage calculator;

a drug modeler and normalizer configured to correlate the data channel with data corresponding to average pharmacokinetic effects to dynamically calculate a current concentration value representing the current drug concentration and a plurality of predicted values corresponding to a period of future time, and wherein the current concentration value is mathematically correlated with data corresponding to average pharmacodynamic effects to dynamically calculate a plurality of current effect values representing analgesic, anesthetic, and muscle relaxation;

a data storage device configured to digitally record the current concentration value, the plurality of current effect values, and the plurality of predicted concentration values; and

a display generator configured to visually display a drug concentration as a function of time including a visually discrete representation of a past, present, and predicted drug concentration, wherein the past and present drug concentration are visual representations of the current concentration value as a function of time and the predicted drug concentration is a visual representation of the plurality of predicted concentration values, and wherein the display generator is configured to visually display the current pharmacodynamic effects, wherein the current pharmacodynamic effects are visual representations of the plurality of effect values.

16. The system of claim 15, wherein the drug delivery system comprises at least one of an infusion pump, a gas administration machine, and one or more bolus injection apparatus.

17. The system of claim 15, wherein the drug delivery system further comprises a simulator, which simulates the present and future concentrations based on a model.

18. The system of claim 17, wherein the simulator simulates bolus drugs.

19. The system of claim 15, wherein the simulator simulates infusion drugs.

20. The system of claim 15, wherein the drug modeler and normalizer are configured to calculate corresponding current drug concentration values and current effect values for multiple injected drug types.

21. The system of claim 15, wherein the visual display of the drug concentration as a function of time includes a real time display, wherein the real time display includes a pharmacokinetic display and a pharmacodynamic display.

22. The system of claim 21, wherein the pharmacokinetic display includes a graph of a particular drugs concentration including visual representations of a drug input time, a drug type, a total drug dosage, a drug delivery method, a plurality of past time concentration values, a current concentration value, and a plurality of predicted concentration values.

23. The system of claim 22, wherein the pharmacokinetic display further includes an EC95 value at which 95% percent of the population is completely affected by the anesthetic drug.

24. The system of claim 21, wherein the display includes a plurality of pharmacokinetic displays representing independent drugs currently affecting the system.

25. The system of claim 21, wherein the pharmacodynamic display includes a sedation display, an analgesia display, and a muscle relaxation display, and wherein each of the displays visually illustrates a current state of the system as a function of total pharmacodynamic effect.

26. A system for visually displaying pharmacokinetic and pharmacodynamic effects as a function of time, comprising:

a processing element programmed to record a plurality of drug delivery information data corresponding to at least drug type, initial drug dosage, and drug delivery method onto a data channel, wherein the processing element is further programmed to correlate the data channel with data corresponding to average pharmacokinetic effects to dynamically calculate a current concentration value representing the current drug concentration and a plurality of predicted values corresponding to a period of future time, and wherein the current concentration value is mathematically correlated with data corresponding to average pharmacodynamic effects to dynamically calculate a plurality of current effect values representing analgesic, anesthetic, and muscle relaxation; and

an output element configured to visually display the drug concentration as a function of time including a visually discrete representation of a past, present, and predicted drug concentration, wherein the past and present drug concentration are visual representations of the current concentration value as a function of time and the predicted drug concentration is a visual representation of the plurality of predicted concentration values, and wherein the display generator is configured to visually display the current pharmacodynamic effects, wherein the current pharmacodynamic effects are visual representations of the plurality of effect values.

27. The system of claim 26, wherein the visual display of the drug concentration as a function of time includes a real time display, wherein the real time display includes a pharmacokinetic display and a pharmacodynamic display.

28. The system of claim 27, wherein the pharmacokinetic display includes a graph of a particular drugs concentration including visual representations of a drug input time, a drug type, a total drug dosage, a drug delivery method, a plurality of past time concentration values, a current concentration value, and a plurality of predicted concentration values.

29. The system of claim 27, wherein the pharmacodynamic display includes a sedation display, an analgesia display, and a muscle relaxation display, and wherein each of the displays visually illustrates a current state of the system as a function of total pharmacodynamic effect.

30. A system for visually displaying pharmacokinetic and pharmacodynamic effects as a function of time, comprising:

a processing module programmed to record a plurality of drug delivery information data corresponding to at least drug type, initial drug dosage, and drug delivery method onto a data channel, wherein the processing element is further programmed to correlate the data channel with data corresponding to average pharmacokinetic effects to dynamically calculate a current concentration value representing the current drug concentration and a plurality of predicted values corresponding to a period of future time, and wherein the current concentration value is mathematically correlated with data corresponding to average pharmacodynamic effects to dynamically calculate a plurality of current effect values representing analgesic, anesthetic, and muscle relaxation; and

an output module configured to graphically display the drug concentration as a function of time including a visually discrete representation of a past, present, and predicted drug concentration, wherein the past and present drug concentration are visual representations of the current concentration value as a function of time and the predicted drug concentration is a visual representation of the plurality of predicted concentration values, and wherein the display generator is configured to visually display the current pharmacodynamic effects, wherein the current pharmacodynamic effects are visual representations of the plurality of effect values.