Radiation stress non-invasive blood pressure method

• US 7,654,962 B2
• Filed: 06/28/2004
• Issued: 02/02/2010
• Est. Priority Date: 06/26/2003
• Status: Expired due to Fees

• Current Assignee: Hoana Medical, Inc.
• Original Assignee: Hoana Medical, Inc.
• Inventors: Sullivan, Patrick K.
• Primary Examiner(s): Marmor, II; Charles A
• Assistant Examiner(s): Natnithithadha; Navin
• Application Number:
  US10/562,416
• Publication Number:
  US 20070265535A1
• Time in Patent Office: 2,045 Days
• Field of Search: 600/300, 600/481, 600/483, 600/484, 600/485, 600/488, 600500-503, 600508-526
• US Class Current: 600/481
• CPC Class Codes: A61B 2562/0204 Acoustic sensors
• CPC Class Codes: A61B 2562/0247 Pressure sensors
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/021 Measuring pressure in heart or blood vessels A61B5/0205 takes precedence
• CPC Class Codes: A61B 5/11 Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb for measuring pulse A61B5/02 ;A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721
• CPC Class Codes: A61B 5/6892 Mats
• CPC Class Codes: A61B 7/00 Instruments for auscultation

Abstract

The invention determines the energy dispersion via acoustic, electromechanical or other related physiological signals collected from a patient that lies down or otherwise engages a discritized sensing array. Signals are monitored over a range of frequencies and collected in the time domain or frequency domain. A computing machine determines the energy from the signal measured over various elements of the array and calculates the momentum flux. Blood pressure is determined directly from the momentum flux calculation.

Claims

1. A radiation stress, non-invasive vital sign monitoring method comprising:

providing one or more discretized sensor arrays,

engaging the one or more discretized sensor arrays,

measuring and collecting discretized acoustic or electromechanical or physiological signals with the discretized sensor arrays,

transmitting discretized signals to a receiving and computer device,

the receiving and computer device

produces time series data from various discretized sensor array signals,

calculates energy spectrum from the time series data,

determines variance of each discretized sensor array, and

calculates a value for vital signs of a patient.

2. The method of claim 1, wherein the vital signs are average, mean, systolic and diastolic arterial blood pressure.

3. The method of claim 1, wherein the vital signs are hypertension.

4. The method of claim 1, further comprising lying on, standing on, or otherwise contacting the discretized sensor arrays.

5. The method of claim 1, wherein the collecting the discretized acoustic or electromechanical physiological signals is performed over a range of frequencies.

6. The method of claim 1, wherein the collecting the discretized acoustic or electromechanical physiological signals is performed over a single frequency.

7. The method of claim 1, wherein the collecting acoustic or electromechanical physiological signals further comprises collecting data in a time domain or frequency domain.

8. The method of claim 1, wherein the calculating a value for vital signs is performed with non-time series methods for determining energy at various array points or a combination of array points.

9. The method of claim 1, wherein the transmitting of discretized signals comprises transmitting discretized signals via wire, fiber optics or wirelessly.

10. The method of claim 1, further comprising providing continuous, real-time monitoring of a patient'"'"'s vital signs.

11. The method of claim 1, further comprising calculating the momentum flux from data gathered from the discretized sensor arrays.

12. The method of claim 11, further comprising calculating a patient'"'"'s vital signs from the momentum flux.

13. The method of claim 1, wherein the one or more discretized sensor arrays are not attached to the patient.

14. A radiation stress, non-invasive vital sign monitoring device comprising:

one or more discretized sensor arrays for measuring and collecting discretized acoustic or electromechanical signals from a patient,

a surface on the one or more discretized sensor arrays for engaging a patient,

a transmission system for transmitting data collected by the one or more discretized sensor arrays,

a receiving device for receiving the transmitted data from the one or more discretized sensor arrays, and

a computing device connected to the receiving device for calculating values of vital signs of the patient by

producing time series data from various discretized sensor array signals,

calculating energy spectrum from the time series data, and

determining variance of each discretized sensor array.

15. The device of claim 14, wherein the vital signs are average, mean, systolic and diastolic arterial blood pressure.

16. The device of claim 14, wherein the vital signs are hypertension.

17. The device of claim 14, wherein the patient lies on, stands on, or otherwise contacts the discretized sensor arrays.

18. The device of claim 14, wherein the discretized sensor arrays collect the discretized acoustic or electromechanical signals over a range of frequencies.

19. The device of claim 14, wherein the discretized sensor arrays collect the discretized acoustic or electromechanical signals over a single frequency.

20. The device of claim 14, wherein the discretized sensor arrays collect the discretized acoustic or electromechanical signals in a time domain or frequency domain.

21. The device of claim 14, wherein the computing device calculates a value for vital signs with non-time series methods for determining energy at various array points or a combination of array points.

22. The device of claim 14, wherein the transmission system transmits discretized signals via wire, fiber optics or wirelessly.

23. The device of claim 14, wherein the discretized sensor arrays provide continuous, real-time monitoring of a patient'"'"'s vital signs.

24. The device of claim 14, wherein the computing device computes the momentum flux from data gathered from the discretized sensor arrays.

25. The device of claim 24, wherein the computing device further computes a patient'"'"'s vital signs from the momentum flux.

26. The device of claim 14, wherein the one or more discretized sensor arrays are not attached to the patient.