System and method for analyzing patient information for use in automated patient care

• US 6,974,413 B2
• Filed: 05/18/2001
• Issued: 12/13/2005
• Est. Priority Date: 06/03/1999
• Status: Expired due to Term

• Current Assignee: Cardiac Intelligence Corp (Boston Scientific Corporation)
• Original Assignee: Cardiac Intelligence Corp (Boston Scientific Corporation)
• Inventors: Bardy, Gust H.
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Assistant Examiner(s): Oropeza, Frances P.
• Application Number:
  US09/860,977
• Publication Number:
  US 20010051764A1
• Time in Patent Office: 1,670 Days
• Field of Search: 128/903, 379/106.02, 600/300, 600/301, 600/509, 600/513
• US Class Current: 600/300
• CPC Class Codes: A61B 5/0002 Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network A61B5/07 takes precedence; transmission systems for measured values G08C; transmission H04B; transmission of digital information H04L; wireless communication networks H04W
• CPC Class Codes: A61B 5/0006 ECG or EEG signals
• CPC Class Codes: A61B 5/0022 Monitoring a patient using a global network, e.g. telephone networks, internet
• CPC Class Codes: A61B 5/0031 Implanted circuitry
• CPC Class Codes: A61B 5/02028 Determining haemodynamic parameters not otherwise provided for, e.g. cardiac contractility or left ventricular ejection fraction
• 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 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/0215 by means inserted into the body catheters A61M25/00
• CPC Class Codes: A61B 5/0826 Detecting or evaluating apnoea events A61B5/4818 takes precedence
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 5/333 Recording apparatus specially adapted therefor
• CPC Class Codes: A61B 5/4878 Evaluating oedema
• CPC Class Codes: A61B 5/686 Permanently implanted devices, e.g. pacemakers, other stimulators, biochips A61B5/6861 takes precedence
• CPC Class Codes: A61B 5/7246 using correlation, e.g. template matching or determination of similarity
• CPC Class Codes: A61B 5/7275 Determining trends in physiological measurement data; Predicting development of a medical condition based on physiological measurements, e.g. determining a risk factor
• 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: A61B 7/02 Stethoscopes acoustic details thereof G10K11/00
• CPC Class Codes: A61N 1/37258 Alerting the patient
• CPC Class Codes: A61N 1/37282 : characterised by communication with experts in remote locations using a network
• CPC Class Codes: A61N 1/39622 : Pacing therapy
• CPC Class Codes: G16H 10/60 : for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 15/00 : ICT specially adapted for medical reports, e.g. generation or transmission thereof
• CPC Class Codes: G16H 40/67 : for remote operation
• CPC Class Codes: G16H 50/00 : ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
• CPC Class Codes: G16H 50/20 : for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16H 50/30 : for calculating health indices; for individual health risk assessment
• CPC Class Codes: Y10S 128/92 : Computer assisted medical diagnostics

Abstract

One or more physiological measures regularly recorded by an implantable medical device and relating to individual patient information recorded on a substantially continuous basis are retrieved from a patient care record. The physiological measures retrieved from one such patient care record are analyzed to determine a patient status. Each of the physiological measures are representative of at least one of measured and derived patient information.

Claims

1. A system for analyzing patient information for use in automated patient care, comprising:

a database storing patient care records with each record containing one or more physiological measures regularly recorded by an implantable medical device and relating to individual patient information recorded on a substantially continuous basis and during an initial observation period; and

an analysis module analyzing the physiological measures, each of the physiological measures being representative of at least one of measured and derived patient information, retrieved from one such patient care record to determine a patient status and determining one or more reference measures, each of the reference measures representative of at least one of measured and derived patient information, from the physiological measures retrieved from one such patient care record and storing the reference measures into the one such patient care record indicating a reference baseline patient status.

2. A system according to claim 1, further comprising:

a medical device having a sensor for monitoring and recording the physiological measures from an anatomical site at least one of directly and derivatively.

3. A system according to claim 2, further comprising:

at least one further sensor monitoring and recording the physiological measures from an anatomical site unique from the anatomical site monitored by any other such sensor; and

the analysis module determining the patient status by comparing physiological measures retrieved from one such patient care record for a plurality of sensors.

4. A system according to claim 1, further comprising:

the database storing the patient care records with each of the patient care records containing the physiological measures from sensors monitoring the one or more anatomical sites within the individual patient; and

the analysis module analyzing the physiological measures from the one such patient care record relative to the anatomical sites.

5. A system according to claim 4, wherein the physiological measures monitor the same relative site.

6. A system according to claim 4, wherein the physiological measures monitor different relative sites.

7. A system according to claim 4, wherein the physiological measures monitor relate to the same type of patient information.

8. A system according to claim 4, wherein the physiological measures monitor relate to different types of patient information.

9. A system according to claim 1, further comprising:

the database storing the patient care records with each of the patient care records containing one or more quality of life measures relating to normalized spoken patient self-assessment indicators, each such quality of life measure recorded substantially contemporaneous to the physiological measures; and

the analysis module analyzing the physiological measures and the contemporaneously recorded quality of life measures retrieved from one such patient care record to determine the patient status.

10. A method for analyzing patient information for use in automated patient care, comprising:

retrieving from a patient care record one or more physiological measures regularly recorded by an implantable medical device and relating to individual patient information recorded on a substantially continuous basis and during an initial observation period;

analyzing the physiological measures, each of the physiological measures being representative of at least one of measured and derived patient information, retrieved from one such patient care record to determine a patient status;

determining one or more reference measures, each of the reference measures representative of at least one of measured and derived patient information, from the physiological measures retrieved from one such patient care record; and

storing the reference measures into the one such patient care record indicating a reference baseline patient status.

11. A method according to claim 10, further comprising:

obtaining the physiological measures from a medical device having a sensor for monitoring the physiological measures from an anatomical site at least one of directly and derivatively.

12. A method according to claim 11, further comprising:

obtaining the physiological measures monitored by at least one further sensor monitoring the physiological measures from an anatomical site unique from the anatomical site monitored by any other such sensor; and

determining the patient status by comparing physiological measures retrieved from one such patient care record for a plurality of sensors.

13. A method according to claim 10, further comprising:

receiving the physiological measures from sensors monitoring the one or more anatomical sites within the individual patient; and

analyzing the physiological measures from the one such patient care record relative to the anatomical sites.

14. A method according to claim 13, wherein the physiological measures monitor the same relative site.

15. A method according to claim 13, wherein the physiological measures monitor different relative sites.

16. A method according to claim 13, wherein the physiological measures monitor relate to the same type of patient information.

17. A method according to claim 13, wherein the physiological measures monitor relate to different types of patient information.

18. A method according to claim 10, further comprising:

retrieving one or more quality of life measures relating to normalized spoken patient self-assessment indicators from a patient care record, each such quality of life measure recorded substantially contemporaneous to the physiological measures; and

analyzing the physiological measures and the contemporaneously recorded quality of life measures retrieved from one such patient care record to determine the patient status.

19. A computer-readable storage medium for a device holding code for performing the method according to claims 11, 13, 18, and 10.