Tissue-characterization system and method

• US 8,147,423 B2
• Filed: 03/01/2007
• Issued: 04/03/2012
• Est. Priority Date: 03/01/2007
• Status: Active Grant

• Current Assignee: Dune Medical Devices Ltd. (Dilon Technologies LLC)
• Original Assignee: Dune Medical Devices Ltd. (Dilon Technologies LLC)
• Inventors: Hashimshony, Dan, Aharonowitz, Gal, Cohen, Gil, Geltner, Iddo
• Primary Examiner(s): Hindenburg, Max
• Assistant Examiner(s): DANEGA, RENEE A
• Application Number:
  US11/712,529
• Publication Number:
  US 20080214953A1
• Time in Patent Office: 1,860 Days
• Field of Search: 600/562, 600/552
• US Class Current: 600/562
• CPC Class Codes: A61B 5/0059 using light, e.g. diagnosis by transillumination, diascopy, fluorescence A61B5/0093, A61B5/1455, A61B5/02416 and A61B5/0261 take precedence
• CPC Class Codes: A61B 5/0064 Body surface scanning
• 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 5/6834 using vacuum

Abstract

A measurement system and method are provided for use in characterizing a tissue. The system comprises a probe adapted for operating in either a scan mode or a measure mode, and a control unit for operating the probe. The probe comprises a sensing module for measuring one or more parameters indicative of one or more states of the tissue; and an attachment module configured and operable to enable selective operation of the probe in either one of the scan mode and the measure modes. The control unit is configured and operative to selectively operate the probe in either one of the scan and measure modes.

Claims

1. A measurement system for use in characterizing a tissue, the system comprising:

i. a probe adapted for operating in either a scan mode or a measure mode, said probe comprising;

a) a sensing module comprising one or more sensors and configured and operable to measure one or more parameters indicative of one or more states of the tissue; and

b) an attachment module configured and operable to provide attachment between the probe and tissue under measurements during the probe operation in the scan mode and the measure mode;

ii. a control unit configured and operative to identify a degree of attachment between the probe and the tissue and selectively operate the probe in either one of the scan and measure modes; and

iii. a vacuum system configured and operable to selectively provide a first vacuum level during the scan mode and a second vacuum level during the measure mode.

2. The system according to claim 1, wherein the attachment module is configured and operable to be shiftable between different configurations thereof corresponding to the modes of the probe.

3. The system according to claim 1, wherein the attachment module is configured and operable to be shiftable between different positions thereof corresponding to the different degrees of attachment between the probe and the tissue.

4. The system according to claim 1, configured and operable to selectively operate the probe in one of the following modes:

scan mode, measure mode, and a release mode.

5. The system according to claim 1, wherein the attachment module is configured and operable to provide an effective contact between said one or more sensors and the tissue.

6. The system according to claim 5, wherein the attachment module is configured and operable to maintain the effective contact between said one or more sensors and the tissue for a predetermined time period.

7. The system according to claim 1, wherein the attachment module is configured and operable to maintain the measure mode for a predetermined time period.

8. The system according to claim 1, wherein the control unit is configured to automatically regulate the probe from the scan mode to the measure mode.

9. The system according to claim 4, wherein the control unit is configured to regulate a vacuum system for providing suction to the probe from the measure mode to the release mode.

10. The system according to claim 1, wherein the control unit is configured to automatically regulate the probe from the scan mode to the measure mode, upon detecting existence of a required degree of attachment between said probe and the tissue.

11. The system according to claim 1, wherein the probe is configured to be manually regulated from the scan mode to the measure mode by a user.

12. The system according to claim 1, configured and operable to provide attachment of the probe to the tissue during the scan mode.

13. The system according to claim 1, wherein the attachment module comprises a mechanism configured to attach the one or more sensors to the tissue.

14. The system according to claim 13, wherein said mechanism comprises one or more orifices.

15. The system according to claim 1, wherein the attachment module comprises a mechanism enabling the measurement by the sensor.

16. The system according to claim 15, wherein said mechanism is a piston.

17. The system according to claim 1, wherein the vacuum system is connected to said probe and comprises:

a vacuum source for providing suction to the probe; and

a controller utility connectable to the vacuum source and configured and operable by a processor of the control unit to operate the attachment module during the scan mode and the measure mode.

18. The system according to claim 17, wherein the vacuum system is configured and operable to selectively provide a first vacuum level during the scan mode and a second vacuum level during the measure mode.

19. The system according to claim 17, wherein the vacuum system comprises at least one vacuum sensor configured to measure the suction level in proximity to the probe.

20. The system according to claim 17, wherein the processor is configured to regulate the vacuum system from the scan mode to a measure mode.

21. The system according to claim 17, wherein the processor is configured to regulate the vacuum system from the measure mode to a scan mode.

22. The system according to claim 17, wherein the attachment controller utility comprises one or more solenoids, one or more vacuum sensors, and one or more vacuum chambers.

23. The system according to claim 17, wherein the vacuum system comprises a regulator configured and operable to provide a substantially constant pressure level.

24. The system according to claim 17, wherein the vacuum system comprises a flow controller configured to restrict the pressure level.

25. The system according to claim 17, wherein the vacuum system comprises a fluid trap unit configured to isolate the probe from the vacuum system.

26. A control unit for use in a measurement system for tissue characterization measurements, the control unit comprising a communication utility for communicating with a probe of the measurement system, and a processor utility operable for controlling an attachment between the probe and a tissue under mcasurcmcntsmeasurement and upon identifying a desired attachment operating the probe to switch from a scan mode to a measure mode to thereby allow tissue characterization measurements.

27. A method for use in characterizing a tissue site, the method comprising:

controlling the operation of a sensing module located within a probe, to selectively shift said sensing module from a scan mode into a measure mode, upon detecting existence of a predetermined attachment condition between the sensing module and the tissue site.

28. The method according to claim 27, wherein, during said scan mode, said attachment condition is characterized by a change in a first vacuum level between the probe and the tissue site, different from a second vacuum level maintained during the measure mode.

29. The method according to claim 28, wherein said second vacuum level is lower from said first vacuum level.

30. A method for use in characterizing a tissue site, the method comprising:

providing a probe comprising a sensing module, which comprises at least one sensor configured to measure one or more parameters indicative of one or more states of the tissue;

providing a vacuum system comprising a vacuum source for providing suction to the probe, and an attachment controller utility connectable to the vacuum source, said attachment controller utility being configured and operable to be regulated by a processor to selectively operate the probe in either one of a scan mode and a measure mode in accordance with a degree of attachment between the probe and the tissue;

activating the vacuum system to operate the probe in the scan mode;

bringing the probe to the tissue site; and

placing the probe against the tissue site, thereby adjusting the probe to the measure mode to enable the measurement by the sensor of the one or more parameters indicative of one or more states of the tissue at the tissue site.

31. The method according to claim 30, wherein the vacuum system is configured to bring about, in a predetermined time, an effective contact between the sensor and the tissue.

32. The method according to claim 30, wherein the probe is configured to be operated in a release mode.

33. The method according to claim 30, wherein during said scan mode said vacuum system is producing a first vacuum level.

34. The method according to claim 30, wherein during said measure mode said vacuum system is producing a second vacuum level.

35. The method according to claim 34, wherein said second vacuum level is lower from said first vacuum level.