Method and apparatus for monitoring dynamic cardiovascular function using n-dimensional representatives of critical functions

• US 7,654,966 B2
• Filed: 10/11/2002
• Issued: 02/02/2010
• Est. Priority Date: 12/07/1999
• Status: Expired due to Fees

• Current Assignee: University of Utah Research Foundation (State of Utah)
• Original Assignee: University of Utah Research Foundation (State of Utah)
• Inventors: Strayer, David, Albert, Robert, Wachter, S. Blake, Syroid, Noah, Westinskow, Dwayne, Drews, Frank, Agutter, James
• Primary Examiner(s): Marmor, II; Charles A
• Assistant Examiner(s): Natnithithadha; Navin
• Application Number:
  US10/269,423
• Publication Number:
  US 20030227472A1
• Time in Patent Office: 2,671 Days
• Field of Search: 600/485, 600529-543, 434262-275
• US Class Current: 600/532
• 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: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

A method, system, apparatus and device for the monitoring, diagnosis and evaluation of the state of a dynamic pulmonary 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 pulmonary critical function with respect to a dynamic system.

Claims

1. A medical display method for using a data processor to provide an integrated representation of a patient'"'"'s pulmonary system for diagnostic purposes and display to a user, comprising:

displaying an inspired gas object on a display, wherein the inspired gas object is configured to depict a patient'"'"'s inspired gas volume as measured by a first sensor configured to detect inspired gas;

displaying a lung object on the display, the lung object being associated with the inspired gas object and configured to represent a patients'"'"' lung condition as sensed by a second sensor configured to detect a lung condition;

displaying an expired gas object on the display, the expired gas object being configured to represent a patient'"'"'s expiration volume as measured by third sensor configured to detect expired gas, and the expiration object being displayed in combination with the lung object and inspired gas object to exhibit interaction between objects to display pulmonary states of the patient; and

displaying a normal reference frame on the display, the normal reference frame representing expected normal pulmonary values for inspired gas, lungs and expired gas.

2. A medical diagnostic display method as in claim 1, further comprising:

displaying an airway object representing a constriction state of a patient'"'"'s airway;

displaying a ventilation object in communication with the airway object representing tidal volume of the patient'"'"'s pulmonary system.

3. A medical diagnostic display method as in claim 2, wherein a ventilation object is configured in a symbolic lung shape.

4. A medical diagnostic display method as in claim 1, wherein the lung object represents alveoli or a site of gas interchange.

5. A medical diagnostic display method as in claim 1, further comprising displaying a lung reference frame having lung reference frame thickness mapped inversely to lung compliance, wherein a thicker lung reference frame represents increased lung stiffness.

6. A medical diagnostic display method as in claim 5, wherein the lung object is mapped to Positive End Expiratory Pressure (PEEP).

7. A medical diagnostic display method as in claim 5, wherein the lung object can expand in width past the lung reference frame to represent high internal lung pressure or volume.

8. A medical diagnostic display method as in claim 1, wherein changes on an x-axis of the airway object represent Positive Inspiratory Pressure (PIP).

9. A medical diagnostic display method as in claim 1, wherein the inspired gas object is configured to represent fractional inspired oxygen concentration (FIO2).

10. A medical diagnostic display method as in claim 1, wherein the expired gas object is configured to represent end tidal carbon dioxide concentration (ETCO2).

11. A medical diagnostic display method as in claim 1, wherein the normal reference frame and object within the reference frame are configured to show positive increases past normalization by expanding outside the reference frame and negative decreases from normalization by shrinking within the reference frame.

12. A medical diagnostic display method for using a data processor to provide an integrated view of a patient'"'"'s pulmonary system for display to a user, comprising:

displaying an inspired gas object configured to depict a patient'"'"'s inspired gas volume as measured by a first sensor configured to detect inspired gas;

displaying a lung object associated with the inspired gas object, the lung object configured to represent a patients'"'"' lung status as sensed by a second sensor configured to detect a lung status;

displaying an expired gas object configured to display a patient'"'"'s respiration volume as measured by a third sensor configured to detect expired gas, the expiration object being associated with the lung object;

displaying an airway object extending from the lung object and representing a constriction state of a patient'"'"'s airway as sensed by a fourth sensor configured to detect airway constriction;

displaying a ventilation object coupled to the airway object, the ventilation object representing tidal volume of the patient'"'"'s pulmonary system, wherein the tidal volume of the patient'"'"'s pulmonary system is sensed using a fifth sensor configured to detect pulmonary system tidal volume, and wherein pulmonary objects are displayed in combination to exhibit interaction between objects to display pulmonary states of the patient; and

displaying a normal reference frame surrounding each of the pulmonary objects, wherein the normal reference frame represents expected normal pulmonary values.

13. A medical diagnostic display method as in claim 12, wherein the inspired gas object, lung object, expired gas object, airway object, and ventilation object are organized in a order that represents the pulmonary system as compared to timing of the pulmonary processes.

14. A medical diagnostic display method as in claim 12, wherein each pulmonary object can expand past the normal reference frame or contract within the normal reference frame to show an abnormal pulmonary state.

15. A method for displaying diagnostic patient pulmonary data in a three-dimensional display on a display screen, comprising the steps of:

measuring a patient'"'"'s inspired gas volume using a first sensor configured to detect inspired gas volume and representing the inspired gas volume as an inspired gas object;

displaying a lung object associated with the inspired gas object, the lung object being configured to represent a patients'"'"' lung condition as sensed by a second sensor configured to detect a lung condition;

displaying an expired gas object configured to display the patient'"'"'s respiration volume as measured by a third sensor configured to detect respiration, wherein the expired gas object is associated with the lung object;

representing a constriction state of an airway using an airway object extending from the lung object, wherein the constriction state of the airway is sensed using a fourth sensor configured to detect airway constriction;

representing tidal volume of a patient'"'"'s pulmonary system using a ventilation object coupled to the airway object, wherein the tidal volume of the patient'"'"'s pulmonary system is sensed using a fifth sensor configured to detect pulmonary system tidal volume, and wherein pulmonary objects are displayed in combination to exhibit interaction between objects to display pulmonary states of the patient; and

providing a normalization frame surrounding each of the pulmonary objects, wherein the normal reference frame represents expected normal pulmonary values.

16. A method as in claim 15, wherein each pulmonary object can expand past the reference frame or contract within the reference frame to show an abnormal pulmonary state.