SYSTEM AND METHOD FOR OPTIMIZING CONTROL OF PCA AND PCEA SYSTEM

• US 20070299389A1
• Filed: 06/13/2007
• Published: 12/27/2007
• Est. Priority Date: 06/13/2006
• Status: Active Grant

• Current Assignee: Carefusion 303 Incorporated (Becton, Dickinson & Co)
• Original Assignee: Cardinal Health 303 Incorporated (Cardinal Health, Inc.)
• Inventors: Halbert, Donald, Bollish, Stephen, Fisher, Monte, Butterfield, Robert
• Granted Patent: US 7,871,394 B2
• Time in Patent Office: Days
• US Class Current: 604/65
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/411 Detecting or monitoring allergy or intolerance reactions to an allergenic agent or substance
• CPC Class Codes: A61B 5/746 Alarms related to a physiological condition, e.g. details of setting alarm thresholds or avoiding false alarms alarms per se G08B
• CPC Class Codes: A61M 2005/1405 Patient controlled analgesia [PCA]
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 5/1413 Modular systems comprising interconnecting elements
• CPC Class Codes: A61M 5/1456 with a replaceable reservoir comprising a piston rod to be moved into the reservoir, e.g. the piston rod is part of the removable reservoir
• CPC Class Codes: A61M 5/1723 using feedback of body parameters, e.g. blood-sugar, pressure measurement of body parameters A61B5/00
• CPC Class Codes: G06Q 40/08 Insurance
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/63 for local operation

Abstract

In a patient controlled analgesia (PCA) system, physiological data is processed and alarms are provided by the controller of the physiological module sensing the data according to a first rule. The physiological data is also processed by a second, separate controller according to a second rule independent from the first controller. According to the second rule, the physiological data may be filtered, processed with physiological data and non-physiological data obtained from another source, such as a remote server, and the PCA delivery device controlled to prevent delivery of medication accordingly. The provided system of multiple processors and rules enables normal alarming by physiological sensor modules while the pausing or prevention of the PCA delivery is controlled by a separate controller. Through this means, not only are false pauses and alarms for PCA delivery reduced, but the normal alarms of the monitors are permitted to function normally.

Claims

1. A system for optimizing control over a PCA device configured to deliver medication, comprising:

a medication delivery request device with which a request signal for delivery of the medication is provided;

a physiological device configured to provide a physiological signal representative of physiological data;

a first controller that receives the physiological signal, processes the physiological signal and provides a first alarm signal according to a first rule;

a first alarm device that communicates the first alarm signal; and

a second controller, separate from the first controller, that receives the request signal, receives the physiological signal, processes the request signal and the physiological signal and controls the operation of the PCA device according to the processing to deliver medication in accordance with a second rule, wherein the second rule is different from the first rule.

2. The system for optimizing control of claim 1 wherein the second controller controls the PCA device according to the processing to a non-delivery mode in which the PCA device does not deliver medication.

3. The system for optimizing control of claim 2 further comprising a second alarm device that communicates a second alarm in response to a second alarm signal, wherein the second controller provides the second alarm signal according to the processing under the second rule.

4. The system for optimizing control of claim 1 wherein the physiological data device comprises a physiological monitor that measures a physiological parameter and provides the physiological signal representative of the measured parameter.

5. The system for optimizing control of claim 4 wherein the second controller controls the PCA device according to the processing to a non-delivery mode in which the PCA device does not deliver medication.

6. The system for optimizing control of claim 5 wherein the second controller provides a second alarm signal according to the second rule, and a second alarm device that communicates the second alarm signal.

7. The system for optimizing control of claim 1 further comprising a physiological parameter data base of previously-determined patient-specific data related to a physiological parameters, wherein:

the data base provides a data signal representative of data related to a previously-determined patient-specific physiological parameter;

the second controller receives the request signal, receives the physiological signal, receives the data signal, and processes the request signal, the physiological signal, and the data signal, and controls the operation of the PCA device in response to the processing to deliver medication in accordance with the second rule.

8. The system for optimizing control of claim 7 wherein:

the physiological data device further comprises a physiological monitor that measures a physiological parameter and provides the physiological signal representative of the measured parameter.

9. The system for optimizing control of claim 1 further comprising an input device with which to modify the second rule.

10. The system for optimizing control of claim 1 further comprising a remote server connected with the second controller, wherein the second controller receives a modification to the second rule from the server and processes in accordance with the modified second rule.

11. The system for optimizing control of claim 10 wherein the second controller receives further patient-specific data from the second server and processes the patient-specific data, the request signal, the physiological signal, and controls the operation of the PCA device in accordance with the processing to deliver medication in accordance with the modified second rule.

12. The system for optimizing control of claim 11 wherein the second controller controls the PCA device according to the processing to a non-delivery mode in which the PCA device does not deliver medication.

13. The system for optimizing control of claim 1 wherein the second controller filters the physiological signal according to one or more of an moving average filter, a rate of change filter and cumulative average, an impulse response filter, a statistical filter, an adaptive filter, and a pharmacokinetic model.

14. The system for optimizing control of claim 13 wherein a parameter of a filter is adapted in accordance with historical data related to a physiological parameter.

15. The system for optimizing control of claim 14 wherein a parameter of a filter is adapted in accordance with concomitant data related to medication infusion.

16. A method for optimizing control over a PCA device configured to deliver medication, comprising:

receiving a medication request signal for delivery of the medication;

receiving a physiological signal representative of physiological data;

processing the physiological signal with a first controller and providing a first alarm signal according to a first rule;

communicating the first alarm signal; and

processing the request signal and the physiological signal with a second controller separately from the first controller and controlling the operation of the PCA device according to the processing to deliver medication in accordance with a second rule, wherein the second rule is different from the first rule.

17. The method for optimizing control of claim 16 wherein the step of controlling the operation of the PCA device comprises controlling the PCA device according to the processing to a non-delivery mode in which the PCA device does not deliver medication.

18. The method for optimizing control of claim 16 further comprising providing a second alarm signal according to the processing under the second rule.

19. The method for optimizing control of claim 16 wherein the step of receiving a physiological signal representative of physiological data comprises measuring a physiological parameter and providing a physiological signal representative of the measured parameter.

20. The method for optimizing control of claim 16 wherein the step of controlling the operation of the PCA device comprises controlling the PCA device to a non-delivery mode in which the PCA device does not deliver medication.

21. The method for optimizing control of claim 16 further comprising providing a second alarm signal according to the second rule to a second alarm device that communicates the second alarm signal.

22. The method for optimizing control of claim 16 further comprising receiving a physiological data signal by the second controller representative of physiological data from a physiological parameter data base of previously-determined patient-specific data related to a physiological parameter;

and

processing the data signal, the request signal, the physiological signal by the second controller, and controlling the operation of the PCA device in response to the processing in accordance with the second rule.

23. The method for optimizing control of claim 22 wherein the step of receiving a physiological signal representative of physiological data comprises measuring a physiological parameter and providing a physiological signal representative of the measured parameter.

24. The method for optimizing control of claim 16 further comprising modifying the second rule by use of an input device connected with the second controller.

25. The method for optimizing control of claim 24 wherein:

the step of modifying the second rule comprises modifying the second rule by a remote server; and

processing by the second controller comprises processing in accordance with the modified second rule.

26. The method for optimizing control of claim 25 further comprising receiving further patient-specific data from the second server and processing the patient-specific data, the request signal, the physiological signal by the second controller and controlling the operation of the PCA device in accordance with the processing to deliver medication in accordance with the modified second rule.

27. The method for optimizing control of claim 26 wherein the step of controlling the PCA device comprises controlling the PCA device according to the processing to a non-delivery mode in which the PCA device does not deliver medication.