SYSTEMS AND METHODS FOR TISSUE EXAMINATION, DIAGNOSTIC, TREATMENT, AND/OR MONITORING

• US 20090177094A1
• Filed: 01/08/2009
• Published: 07/09/2009
• Est. Priority Date: 01/08/2008
• Status: Abandoned Application

• Current Assignee: Oncoscope, Inc. (SpectraScience, Inc.)
• Original Assignee: Oncoscope, Inc. (SpectraScience, Inc.)
• Inventors: Wax, Adam, Brown, William J.
• Application Number:
  US12/350,689
• Publication Number:
  US 20090177094A1
• Time in Patent Office: Days
• US Class Current: 600/476
• CPC Class Codes: A61B 18/02 by cooling, e.g. cryogenic techniques devices for cooling specific reflex points of the body within cell-life limits A61H39/06
• CPC Class Codes: A61B 18/04 by heating by applying electromagnetic radiation A61B18/18; hyperthermia using electric or magnetic fields, radiation or ultrasound A61N
• CPC Class Codes: A61B 18/1492 having a flexible, catheter-like structure, e.g. for heart ablation A61B18/1477 takes precedence
• CPC Class Codes: A61B 18/24 with a catheter A61B18/26, A61B18/28 take precedence
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0075 by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy A61B5/0071 takes precedence
• CPC Class Codes: A61B 5/0086 using infrared radiation
• CPC Class Codes: A61B 5/6852 Catheters
• CPC Class Codes: A61B 5/7257 using Fourier transforms
• CPC Class Codes: A61N 5/0601 Apparatus for use inside the body
• CPC Class Codes: A61N 5/062 Photodynamic therapy, i.e. excitation of an agent

Abstract

Procedures, techniques, and systems for in vivo monitoring, diagnosis, and treatment of tissue during the same or concomitant medical procedure. In disclosed embodiments, during a same or concomitant procedure or examination, tissue can be scanned on a localized level using a real-time optical biopsy system. The real-time optical biopsy system may involve angle-resolved and/or Fourier domain low coherence interferometry (LCI). Because the scanning can be performed in real-time, diagnosis can also be performed in real-time and during the same or concomitant medical procedure. As a result, therapy, if needed, can also be administered to the tissue during the same or concomitant medical procedure. Monitoring of the tissue after therapy can be performed during the same or subsequent procedure. Thus, the procedures and techniques disclosed herein allow detection of tissue anomalies during a first procedure on the patient without waiting for untimely biopsy results, thus providing earlier anomaly detection and treatment and potentially better and timely results and at a lower cost.

Claims

1. A method for examining and monitoring tissue to determine if a therapeutic should be applied to the tissue, comprising during the same or concomitant procedure:

(a) optically examining a tissue to detect anomalies in the tissue generally not perceptible to the human eye employing a real-time f/a/LCI system;

(b) monitoring feedback information regarding the examination of the tissue from the real-time f/a/LCI system;

(c) determining if a treatment should be applied to the tissue based on the feedback information; and

(d) applying a therapy on the tissue if treatment is determined to be applied based on the feedback information.

2. The method of claim 1, wherein the real-time f/a/LCI system is a system comprised from the group consisting of a Fourier domain low coherence interferometer (LCI) (fLCI), an angle-resolved LCI (a/LCI), a Fourier domain, angled-resolved LCI (faLCI), a swept-source (SS) a/LCI (SS a/LCI), a multiple angle (MA) SS a/LCI (MA SS a/LCI), a multiple channel time domain a/LCI, and a multi-spectral a/LCI.

3. The method of claim 1, wherein an optical probe of the real-time f/a/LCI system is integrated in a channel of an endoscopic probe used to optically examine the tissue.

4. The method of claim 1, wherein the feedback information is provided by the real-time f/a/LCI system in approximately one (1) second or less after optically examining the tissue.

5. The method of claim 1, further comprising controlling the real-time f/a/LCI system during optically examining the tissue via computer control having a user interface.

6. The method of claim 1, further comprising repeating steps (a)-(c) after performing step (c).

7. The method of claim 6, wherein the repeating of steps (a)-(c) is performed during the same or concomitant procedure.

8. The method of claim 6, wherein the repeating of steps (a)-(c) is performed during a subsequent procedure.

9. The method of claim 6, further comprising repeating step (d) after the repeating of steps (a)-(c).

10. The method of claim 9, wherein the repeating of step (d) is performed during the same or concomitant procedure.

11. The method of claim 9, wherein the repeating of step (d) is performed during a subsequent procedure.

12. The method of claim 1, wherein the monitoring is performed by a computer in an automated fashion.

13. The method of claim 1, wherein the therapy applied to the tissue is a therapy comprised from the group consisting of one or more of an applied substance therapeutic, a heat application therapeutic, a cold application therapeutic, a radiation ablation therapeutic, a light ablation therapeutic, radio frequency (RF) ablation, a photodynamic therapy, and tissue removal.

14. The method of claim 1, wherein applying the therapy on the tissue if treatment is determined to be applied based on the feedback information is applied via a therapeutic dispenser.

15. A system for examining and monitoring tissue, and applying a therapy to the tissue, if needed during the same or concomitant procedure, comprising:

a real-time f/a/LCI system adapted to optically examine tissue during the procedure, comprising;

an optical probe that receives light from the tissue in response to a sample beam directed to the tissue;

a detector that detects the received light from the tissue; and

a processor that processes the detected light in real-time to determine information about the tissue not generally perceptible to the human eye and configured to provide feedback information regarding the tissue; and

a therapeutic applicator adapted to apply a therapy to the tissue if treatment is determined to be applied based on the feedback information during the procedure.

16. The system of claim 15, further comprising a processing system adapted to receive the feedback information to determine if a treatment should be applied to the tissue during the procedure.

17. The system of claim 15, wherein the optical probe is employed in an endoscopic probe of an endoscope used to examine the tissue.

18. The system of claim 17, wherein the optical probe is integrated into the endoscopic probe.

19. The system of claim 17, wherein the endoscopic probe comprises an instrument channel configured to receive the optical probe.

20. The system of claim 19, wherein the instrument channel is configured to receive a therapeutic applicator after the tissue is examined and the optical probe is removed from the instrument channel.

21. The system of claim 19, wherein the endoscopic probe further comprises a second instrument channel configured to receive a therapeutic applicator.

22. The system of claim 19, wherein the optical probe is comprised of optical fiber.

23. The system of claim 22, wherein the optical fiber carries a light signal to the tissue for introducing light for examination of the tissue by an eyepiece of the endoscopic probe and for directing the sample beam to the tissue.

24. The system of claim 23, wherein the optical fiber is configured to provide a light therapeutic to the tissue.

25. The system of claim 17, further comprising a probe tip adapted to surround a distal end of the endoscopic probe for protecting the endoscopic probe and the optical probe during application.

26. The system of claim 15, wherein the real-time f/a/LCI system is a system comprised from the group consisting of a Fourier domain low coherence interferometer (LCI) (fLCI), an angle-resolved LCI (a/LCI), a Fourier domain, angled-resolved LCI (faLCI), a swept-source (SS) a/LCI (SS a/LCI), a multiple angle (MA) SS a/LCI (MA SS a/LCI), a multiple channel time domain a/LCI, and a multi-spectral a/LCI.

27. A method of treating a patient having precancerous, cancerous, or diseased tissue, comprising, during the same or concomitant procedure:

(a) optically examining the patient'"'"'s tissue to detect anomalies in the tissue generally not perceptible to the human eye employing a real-time f/a/LCI system;

(b) monitoring feedback information regarding the examination of the tissue from the real-time f/a/LCI system;

(c) determining if a treatment should be applied to the tissue based on the feedback information; and

(d) applying a therapy on the tissue if treatment is determined to be applied based on the feedback information.

28. The method of claim 27, wherein the real-time f/a/LCI system is a system comprised from the group consisting of a Fourier domain low coherence interferometer (LCI) (fLCI), an angle-resolved LCI (a/LCI), a Fourier domain, angled-resolved LCI (faLCI), a swept-source (SS) a/LCI (SS a/LCI), a multiple angle (MA) SS a/LCI (MA SS a/LCI), a multiple channel time domain a/LCI, and a multi-spectral a/LCI.

29. The method of claim 28, wherein the repeating of steps (a)-(c) is performed during the same or concomitant procedure.

30. The method of claim 28, wherein the repeating of steps (a)-(c) is performed during a subsequent procedure.

31. The method of claim 28, further comprising repeating step (d) after the repeating of steps (a)-(c).

32. The method of claim 31, wherein the repeating of step (d) is performed during the same or concomitant procedure.

33. The method of claim 31, wherein the repeating of step (d) is performed during a subsequent procedure.

34. The method of claim 27, wherein the therapy applied to the tissue is a therapy comprised from the group consisting of one or more of an applied substance therapeutic, a heat application therapeutic, a cold application therapeutic, a radiation ablation therapeutic, a light ablation therapeutic, radio frequency (RF) ablation, a photodynamic therapy, and tissue removal.

35. The method of claim 27, wherein applying the therapy on the tissue if treatment is determined to be applied based on the feedback information is applied via a therapeutic dispenser.

36. A method for performing and monitoring an esophageal endoscopy in a patient, comprising during the same or concomitant procedure:

(a) optically examining the esophagus to detect anomalies generally not perceptible to the human eye employing a real-time f/a/LCI system;

(b) monitoring feedback information regarding the examination of the esophagus from the real-time f/a/LCI system;

(c) determining if a treatment should be applied to the examined portion of the esophagus based on the feedback information; and

(d) applying radio frequency (RF) ablation on the examined portion of the esophagus if treatment is determined to be applied based on the feedback information.