SYSTEM AND METHOD FOR PATIENT MONITORING

• US 20120184862A1
• Filed: 07/19/2010
• Published: 07/19/2012
• Est. Priority Date: 07/17/2009
• Status: Abandoned Application

• Current Assignee: Agency For Science Technology and Research
• Original Assignee: Agency For Science Technology and Research
• Inventors: Biswas, Jit, Hao, Jianzhong, Foo, Siang Fook, Maniyeri, Jayachandran, Aung Aung, Phyo Wai, Kng, Poh Leong Vincent
• Application Number:
  US13/384,412
• Publication Number:
  US 20120184862A1
• Time in Patent Office: Days
• US Class Current: 600/508
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/1102 Ballistocardiography
• CPC Class Codes: A61B 5/113 occurring during breathing
• CPC Class Codes: A61B 5/6887 mounted on external non-worn devices, e.g. non-medical devices
• CPC Class Codes: A61B 5/726 using Wavelet transforms

Abstract

A system and method for patient monitoring using an array of pressure sensors, and a computer readable data storage medium having stored thereon computer code means for instructing a computer to execute a method for monitoring a patient using an array of pressure sensors. The method comprising the steps of: determining a value of a selection parameter of each pressure sensor of the array; selecting one more of the pressure sensors based on the respective values of the selection parameter; and measuring a vital sign of the patient based on data obtained from said one or more selected pressure sensors.

Claims

1. A method for monitoring a patient using an array of pressure sensors, the method comprising the steps of:

determining a value of a selection parameter of each pressure sensor of the array;

selecting one more of the pressure sensors based on the respective values of the selection parameter; and

measuring a vital sign of the patient based on data obtained from said one or more selected pressure sensors.

2. The method as claimed in claim 1, wherein the determining a value of a selection parameter comprises:

determining a desired sensor location; and

determining a distance of each pressure sensor from the desired sensor location.

3. The method as claimed in claim 2, comprising choosing a default pressure sensor as the selected pressure sensor when a distance between the default pressure sensor and the desired sensor location is within a threshold.

4. The method as claimed in claim 2, comprising choosing another one of the pressure sensors as the selected pressure sensor when a distance between the default pressure sensor and the desired sensor location is outside a threshold

5. The method as claimed in any one of the claim 2, wherein the step of determining the desired sensor location comprises the steps of;

approximating a shape of the patient based on data from the pressure sensors; and

determining the desired sensor location based on the determined shape.

6. The method as claimed in claim 1, further comprising determining a presence of the patient based on data from the pressure sensors.

7. The method as claimed in claim 6, wherein the step of determining the presence of the patient comprises performing one or more of a group consisting of mean, histogram, and shape analysis.

8. The method as claimed in claim 1, further comprising determining a movement of the patient based on data from the pressure sensors.

9. The method as claimed in claim 8, wherein the step of determining a movement of the patient on the surface comprises one or more of a group consisting of conducting pressure point analysis using regression techniques and conducting peak detection techniques.

10. The method as claimed in claim 1, wherein the vital sign comprises heart rate or respiratory rate.

11. The method as claimed in claim 1, wherein determining the vital sign comprises one or more of a group consisting of wavelet denoising, autocorrelation and histogram techniques.

12. The method as claimed in claim 1, further comprising analyzing the vital sign result with Pearson correlation coefficients.

13. The method as claimed in claim 1, further comprising analyzing the vital sign result with integrated patient information or other contexts.

14. The method as claimed in claim 1, further comprising configuring an output response in response to the vital sign result.

20. The system as claimed in claim 1, further comprising means for determining a presence of the patient based on data from the pressure sensors.

21. The system as claimed in claim 20, wherein the means for determining the presence of the patient comprises means for performing one or more of a group consisting of mean, histogram, and shape analysis.

15. A system for monitoring a patient using an array of pressure sensors, the system comprising:

means for determining a value of a selection parameter of each pressure sensor of the array;

means for selecting one more of the pressure sensors based on the respective values of the selection parameter; and

means for measuring a vital sign of the patient based on data obtained from said one or more selected pressure sensors.

16. The system as claimed in claim 15, wherein the means for determining a value of a selection parameter comprises:

means for determining a desired sensor location; and

means for determining a distance of each pressure sensor from the desired sensor location.

17. The system as claimed in claim 16, wherein a default pressure sensor is chosen as the selected pressure sensor when a distance between the default pressure sensor and the desired sensor location is within a threshold.

18. The system as claimed in claim 16, wherein another one of the pressure sensors is chosen as the selected pressure sensor when a distance between the default pressure sensor and the desired sensor location is outside a threshold

19. The system as claimed in claim 16, wherein the means for determining the desired sensor location comprises;

means for approximating a shape of the patient based on data from the pressure sensors; and

means for determining the desired sensor location based on the determined shape.

22. The system as claimed in claim 15, further comprising means for determining a movement of the patient based on data from the pressure sensors.

23. The system as claimed in claim 22, wherein the means for determining a movement of the patient on the surface comprises one or more of a group consisting of means for conducting pressure point analysis using regression techniques and means for conducting peak detection techniques.

24. The system as claimed in claim 15, wherein the vital sign comprises heart rate or respiratory rate.

25. The system as claimed in claim 15, wherein means for determining the vital sign comprises one or more of a group consisting of mean for wavelet denoising, autocorrelation and histogram techniques.

26. The system as claimed in claim 15, further comprising means for analyzing the vital sign result with Pearson correlation coefficients.

27. The system as claimed in claim 15, further comprising means for analyzing the vital sign result with integrated patient information or other contexts.

28. The system as claimed in claim 15, further comprising means for configuring an output response in response to the vital sign result.

29. A computer readable data storage medium having stored thereon computer code means for instructing a computer to execute a method for monitoring a patient using an array of pressure sensors, the method comprising the steps of:

determining a value of a selection parameter of each pressure sensor of the array;

selecting one more of the pressure sensors based on the respective values of the selection parameter; and

measuring a vital sign of the patient based on data obtained from said one or more selected pressure sensors.