PORTABLE MEDICAL DEVICE FOR AUTOMATIC ELECTRICAL COHERENCE ANALYSIS INSIDE A PATIENT

• US 20080033259A1
• Filed: 12/08/2006
• Published: 02/07/2008
• Est. Priority Date: 06/09/2004
• Status: Abandoned Application

• Current Assignee: CSIC - Instituto de Automatica Industrial, Universite libre de Bruxelles
• Original Assignee: CSIC - Instituto de Automatica Industrial, Universite libre de Bruxelles
• Inventors: Pons Rovira, Jose, Brunetti, Fernando, Ceres Ruiz, Ramon, Manto, Mario
• Application Number:
  US11/608,772
• Publication Number:
  US 20080033259A1
• Time in Patent Office: Days
• US Class Current: 600/301
• CPC Class Codes: A61B 5/1101 Detecting tremor
• CPC Class Codes: A61B 5/1107 Measuring contraction of parts of the body, e.g. organ, muscle apparatus for measuring work or force in general G01L
• CPC Class Codes: A61B 5/389 Electromyography [EMG]
• CPC Class Codes: A61B 5/4082 Diagnosing or monitoring movement diseases, e.g. Parkinson, Huntington or Tourette
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses
• CPC Class Codes: A61B 5/6848 Needles

Abstract

A portable medical device for automatically monitoring of electrical activity of target areas inside a patient is described. The medical device is based on a wireless communication network and includes a measuring unit that measures electrical signals at the surface of two target areas and a processing unit connected to the measuring unit. The processing unit includes a slave unit and a master unit for collecting and analyzing the measured electrical signals and presenting the result of the analysis for a clinician. The processing unit also includes a visualization unit connected to the master unit and an optional basic unit for at least presenting the result of the electrical signals and analysis, where the master unit and the basic unit perform an analysis of the electrical signals including an analysis of the coherence between the first and second sets of electrical signals as a function of the monitoring frequency.

Claims

1. A portable medical device for automatic monitoring of electrical activity of target areas inside a patient, the medical device comprising:

a measuring unit comprising at least a first sensor and a second sensor configured to measure, as a function of a monitoring frequency, a first set of electrical signals at the surface of a first patient target area, and a second set of electrical signals at the surface of a second patient target area, respectively; and

a processing unit connected to the measuring unit, the processing unit comprising;

(i) a slave unit configured to collect the first set of electrical signals measured by the measuring unit;

(ii) a master unit connected to the slave unit and configured to receive the first set of electrical signals collected by the slave unit, to collect the second set of electrical signals measured by the second sensor, and to perform analysis of the first and second sets of electrical signals;

(iii) a visualisation unit connected to the master unit and configured to at least present the result of the electrical signals analysis performed by the master unit; and

(iv) a basic unit connected to the master unit and configured to receive and record the first set and the second set of electrical signals collected by the master unit, to analyze the first and second sets of electrical signals and to present the result of the analysis under appropriate form for a clinician,

wherein the master unit and the basic unit are configured to analyze the electrical signals, comprising an analysis of coherence between the first and second sets of electrical signals as a function of the monitoring frequency, and wherein the device further comprises a wireless communication unit to provide a wireless communication connection between the different units of the device.

2. The medical device according to claim 1, wherein the electrical signals correspond to tremor signals.

3. The medical device according to claim 1, wherein the sensors are selected from the group consisting of electromyography sensors, electro-encephalography sensors and cortical sensors.

4. The medical device according to claim 1, wherein the sensors are biomechanical sensor electrodes.

5. The medical device according to claim 1, wherein the medical device performs inter-muscular tremor coherence analysis.

6. The medical device according to claim 1, wherein the medical device operates at monitoring frequencies between about 0.1 Hz and about 30 Hz.

7. The medical device according to claim 1, wherein the basic unit comprises a configuration tool to set up the configuration parameters of the device in operating conditions, the configuration parameters comprising the sampling frequency at which the master and slave units operate and the monitoring frequencies.

8. The medical device according to claim 1, wherein the wireless communication unit uses Bluetooth technology.

9. The medical device according to claim 1, wherein the visualisation unit is a LCD display.

10. The medical device according to claim 4, wherein the electrodes are selected from the group consisting of surface electrodes, needle electrodes and micro-electrodes.

11. The medical device according to claim 6, wherein the medical device operates at monitoring frequencies between about 3 Hz and about 12 Hz.

12. A portable medical device for automatic monitoring of electrical activity of target areas inside a patient, the medical device comprising:

a measuring unit comprising at least a first sensor and a second sensor configured to measure a first set of electrical signals at the surface of a first patient target area, and a second set of electrical signals at the surface of a second patient target area, respectively; and

a processing unit connected to the measuring unit, the processing unit comprising subunits configured to collect the first set of electrical signals measured by the first sensor and the second set of electrical signals measured by the second sensor, to record the first set and the second set of electrical signals, to analyze the first and second sets of electrical signals and to present the result of the analysis under appropriate form for a clinician,

wherein the analysis comprises analyzing coherence between the first and second sets of electrical signals as a function of monitoring frequency, and wherein the medical device further comprises a wireless communication unit to provide a wireless communication connection between the different units of the medical device.

13. The medical device according to claim 12, wherein the processing unit additionally comprises a visualisation subunit configured to at least present the result of the electrical signals analysis.

14. The medical device according to claim 12, wherein the electrical signals correspond to tremor signals.

15. The medical device according to claim 12, wherein the sensors are selected from the group consisting of electromyography sensors, electro-encephalography sensors and cortical sensors.

16. The medical device according to claim 12, wherein the sensors are biomechanical sensor electrodes.

17. The medical device according to claim 12, wherein the medical device performs inter-muscular tremor coherence analysis.

18. The medical device according to claim 12, wherein the medical device operates at monitoring frequencies between about 0.1 Hz and about 30 Hz.

19. The medical device according to claim 12, wherein the processing unit comprises a configuration tool to set up the configuration parameters of the medical device in operating conditions, the configuration parameters comprising the sampling frequency at which at least a portion of the subunits operate and the monitoring frequencies.

20. The medical device according to claim 16, wherein the electrodes are selected from the group consisting of surface electrodes, needle electrodes and micro-electrodes.