IP Library Granted Patent US 7,515,266
Granted Patent B2
US 7,515,266 · App. 11/499,582 · Granted Apr 7, 2009

System and method for enhancing confocal reflectance images of tissue specimens

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Quick Facts
Patent No.
US 7,515,266
App. No.
11/499,582
Granted
Apr 7, 2009
Kind
B2
Abstract

A confocal scanning microscope system ( 10 ) using cross polarization effects and an enhancement agent (acetic acid) to enhance confocal microscope reflectance images of the nuclei of BCCs (basal cell carcinomas) and SCCs (squamous cell carcinomas) in the confocal reflectance images of excised tumor slices. The confocal scanning microscope system having a laser ( 11 ) for generating an illumination beam ( 12 ), a polygon mirror ( 18 ) for scanning the beam to a tissue sample ( 22 ) and for receiving a returned beam from the tissue sample and detector ( 28 ) for detecting the returned beam to form an image. The system further includes a half-wave plate ( 13 ) having a rotatable stage ( 14 ) and a quarter-wave plate ( 21 ) having a rotatable stage ( 20 ) disposed in the optical path of the illumination beam and at least a linear polarizer ( 24 ) having a rotatable stage ( 25 ) disposed in the optical path of the returned beam from the tissue sample.

Claims (18)

1. A system for providing enhanced images of tissue comprising:

means for optically forming a reflected image representing a section of tissue utilizing light of different polarization in the illumination of the tissue and in the detection of light from the tissue; and

an image enhancing agent provided to said tissue which at least changes the light scattering property of the tissue to enhance tissue structures in said image.

2. The system according to claim 1 wherein said enhancement of said image is in accordance with said light of said different polarization in the illumination of tissue and detection of light from said tissue.

3. The system according to claim 1 wherein said image enhancing agent has an acid component.

4. The system according to claim 3 wherein said acid component is one of acetic acid or vinegar.

5. The system according to claim 1 further comprising a detector which receives said reflected image representing said section of said tissue.

6. The system according to claim 1 wherein said means are part of a confocal microscope.

7. The system according to claim 1 wherein said light of different polarization in the illumination and detection operates to enhance contrast of tissue structures in said image whose light scattering property changed by said image enhancing agent.

8. An apparatus for imaging tissue comprising:

optics capable of forming a reflected image representing a section of tissue utilizing light of different polarization in the illumination of the tissue and in the detection of light from the tissue; and

an image enhancing agent provided to said tissue which at least changes the light scattering property of the tissue to enhance tissue structures in said image.

9. The apparatus according to claim 8 wherein said enhancement of said image is in accordance with said light of said different polarization in the illumination of tissue and detection of light from said tissue.

10. The apparatus according to claim 8 wherein said image enhancing agent has an acid component.

11. The apparatus according to claim 10 wherein said acid component is one of acetic acid or vinegar.

12. The apparatus according to claim 8 further comprising a detector which receives said reflected image representing said section of said tissue.

13. The apparatus according to claim 8 wherein said optics are part of a confocal microscope.

14. The apparatus according to claim 8 wherein said light of different polarization in the illumination and detection operates to enhance contrast of tissue structures in said image whose light scattering property changed by said image enhancing agent.

Assignments (9)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2025
From: MAVIG GMBH
To: AURAD GMBH
Reel/Frame 073238/0740 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2025
From: CALIBER IMAGING & DIAGNOSTICS, INC.
To: MAVIG GMBH
Reel/Frame 073184/0715 →
SECURITY INTEREST Recorded Nov 22, 2019
From: CALIBER IMAGING & DIAGNOSTICS, INC.
To: WESTERN ALLIANCE BANK
Reel/Frame 051094/0824 →
CHANGE OF NAME Recorded Mar 23, 2016
From: LUCID, INC.
To: CALIBER IMAGING & DIAGNOSTICS, INC.
Reel/Frame 038226/0225 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2016
From: ZAVISLAN, JAMES M.
To: LUCID, INC.
Reel/Frame 037905/0967 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2016
From: RAJADHYAKSHA, MILIND
To: THE GENERAL HOSPITAL CORPORATION
Reel/Frame 037905/0064 →
SECURITY AGREEMENT Recorded Jul 11, 2012
From: LUCID, INC.
To: NORTHEAST LCD CAPITAL, LLC
Reel/Frame 028533/0017 →
RELEASE OF SECURITY INTEREST Recorded May 15, 2012
From: SQUARE 1 BANK
To: LUCID, INC.
Reel/Frame 028207/0361 →
SECURITY AGREEMENT Recorded Aug 23, 2011
From: LUCID, INC.
To: SQUARE 1 BANK
Reel/Frame 026795/0600 →