PLATFORM FOR DETECTION OF TISSUE STRUCTURE CHANGE

• US 20080039718A1
• Filed: 08/10/2007
• Published: 02/14/2008
• Est. Priority Date: 08/12/2006
• Status: Abandoned Application

• Current Assignee: PhiloMetron Inc.
• Original Assignee: PhiloMetron Inc.
• Inventors: Bhavaraju, Naresh, Drinan, Darrel, Edman, Carl
• Application Number:
  US11/837,357
• Publication Number:
  US 20080039718A1
• Time in Patent Office: Days
• US Class Current: 600/427
• 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 5/05 Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves impedance plethysmography A61B5/0295; measuring movement of the entire body or parts thereof A61B5/11; detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof A61B5/24
• CPC Class Codes: A61B 5/0507 using microwaves or terahertz waves
• CPC Class Codes: A61B 5/1075 for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer A61B8/0858 takes precedence
• CPC Class Codes: A61B 5/413 Monitoring transplanted tissue or organ, e.g. for possible rejection reactions after a transplant
• CPC Class Codes: A61B 8/08 Detecting organic movements or changes, e.g. tumours, cysts, swellings A61B8/02 - A61B8/06 take precedence

Abstract

Aspects include methods and apparatuses for determining change over time in one or more measured regions of a body using a plurality of data sets obtained by analysis of applied signals to said region. The method may include transmitting and receiving one or more of electromagnetic wave signals, applied acoustic wave signals and electrical signals transmitted through or reflected off of a portion of the measured body region.

Claims

1. A method of detecting a physiological condition in a portion of a subject;

the method comprising;

applying electromagnetic waves having frequencies within a range of about 1 GHz to about 100 GHz to a region of the subject at a plurality of points in time;

deriving a plurality of data sets from measured parameters of interaction between the region of the subject and the electromagnetic waves at the plurality of points in time, wherein the content of the data sets is dependent at least in part on tissue structure in the region at the plurality of points in time;

comparing the plurality of data sets to detect a change over time in the interaction between the region of the subject and the electromagnetic waves; and

detecting a change in tissue structure in the region of the subject based at least in part on the comparing.

2. The method of claim 1, wherein the electromagnetic waves comprise ultra wideband radio signals.

3. The method of claim 1 wherein the electromagnetic waves comprise signals of frequency bands other than ultra wideband radio signals.

4. The method of claim 1, wherein detecting the change in tissue structure comprises detecting one or more of scar tissue growth, tumors, and fractures.

5. The method of claim 1, wherein said detected change is associated with a healing wound.

6. The method of claim 1, where said detected change is associated with compartment syndrome.

7. The method of claim 1, wherein said detected change is a change in transplant organ status.

8. The method of claim 1, wherein said detected change is change in ovary dimension.

9. The method of claim 1, further comprising employing fiducial points or alignment aids.

19. The system of claim 18, wherein the common structure comprises a patch.

10. A method of determining detecting a physiological condition in a portion of a subject;

the method comprising;

applying electromagnetic waves residing within a frequency range from about 1 GHz to about 100 GHz to a region of the subject at a plurality of points in time;

applying a different form of energy to the region of the subject at a plurality of points in time;

deriving a first plurality of data sets from measured parameters of interaction between the region of the subject and the electromagnetic waves at the plurality of points in time;

deriving a second plurality of data sets from measured parameters of interaction between the region of the subject and the different form of energy at the plurality of points in time;

comparing the first plurality of data sets to detect a change over time in the interaction between the region of the subject and the electromagnetic waves;

comparing the second plurality of data sets to detect a change over time in the interaction between the region of the subject and the different form of energy; and

detecting a change in tissue structure in the region of the subject based at least in part on the comparing.

11. The method of claim 10, wherein the other form of energy is acoustic energy.

12. The method of claim 10, wherein the other form of energy is electrical energy.

13. The method of claim 10, wherein the other form of energy is sensitive to chemical content of the region.

14. The method of claim 13, wherein the other form of energy is sensitive to hydration of the region.

16. The system of claim 13, wherein said comparator is located in a separate data collection unit in wireless communication with said antenna and circuitry.

17. The system in claim 13, wherein the antenna and circuitry for measurement of tissue changes is also configured for data communication to remote data collection units.

15. A system for measuring change over time in tissue structure in a body region, the system comprising:

at least one antenna and circuitry coupled thereto configured to transmit and receive electromagnetic wave signals;

circuitry configured to convert said signals into one or more data sets; and

a comparator subsystem for performing mathematical calculations on at least two data sets for the determination of change in the tissue structure of the measured body region.

18. A system for measuring change over time in tissue structure in a body region, the system comprising:

an applicator of about 1 GHz to about 100 GHz electromagnetic energy;

a detector configured to detect parameters of interaction between the tissue and the electromagnetic energy;

an applicator of another form of energy;

a detector configured to detect parameters of interaction between the tissue and the other form of energy;

wherein the applicators are housed or supported by a common structure.

20. The system of claim 18, wherein the common structure comprises a handheld unit.