MOVABLE WIDE-ANGLE OPHTHALMIC SURGICAL SYSTEM

• US 20160008169A1
• Filed: 07/14/2014
• Published: 01/14/2016
• Est. Priority Date: 07/14/2014
• Status: Active Grant

• Current Assignee: Alcon Incorporated
• Original Assignee: Novartis Ag
• Inventors: Yu, Lingfeng
• Granted Patent: US 9,724,239 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 2090/3735 Optical coherence tomography [OCT]
• CPC Class Codes: A61B 3/102 for optical coherence tomography [OCT]
• CPC Class Codes: A61B 3/1176 for determining lens opacity, e.g. cataract
• CPC Class Codes: A61B 5/0036 including treatment, e.g., using an implantable medical device, ablating, ventilating
• CPC Class Codes: A61B 5/0095 by applying light and detecting acoustic waves, i.e. photoacoustic measurements
• CPC Class Codes: A61B 5/4836 Diagnosis combined with treatment in closed-loop systems or methods A61B5/0036 takes precedence
• CPC Class Codes: A61B 90/20 Surgical microscopes characterised by non-optical aspects
• CPC Class Codes: A61B 90/50 Supports for surgical instruments, e.g. articulated arms
• CPC Class Codes: A61F 2009/00851 Optical coherence topography [OCT]
• CPC Class Codes: A61F 2009/00874 Vitreous
• CPC Class Codes: A61F 2009/00891 Glaucoma
• CPC Class Codes: A61F 2009/00897 Scanning mechanisms or algorithms
• CPC Class Codes: A61F 9/00821 for coagulation
• CPC Class Codes: A61F 9/009 Auxiliary devices making contact with the eyeball and coupling in laser light, e.g. goniolenses apparatus for eye examination A61B3/0008
• CPC Class Codes: G02B 21/0012 Surgical microscopes counterbalanced structures for surgical microscopes G02B7/001

Abstract

A surgical imaging system can include at least one light source, configured to generate a light beam; a beam guidance system, configured to guide the light beam from the light source; a beam scanner, configured to receive the light from the beam guidance system, and to generate a scanned light beam; a beam coupler, configured to redirect the scanned light beam; and a wide field of view (WFOV) lens, configured to guide the redirected scanned light beam into a target region of a procedure eye; wherein the beam coupler is movably positioned relative to the procedure eye such that the beam coupler is selectively movable to change at least one of an incidence angle of the redirected scanned light beam into the procedure eye and the target region of the procedure eye.

Claims

1. A ophthalmic surgical system comprising:

at least one light source, configured to generate a light beam;

a beam guidance system, configured to guide the light beam from the at least one light source;

a beam scanner, configured

to receive the light from the beam guidance system, and

to generate a scanned light beam;

a beam coupler, configured to redirect the scanned light beam; and

a wide field of view (WFOV) lens, configured to guide the redirected scanned light beam into a target region of a procedure eye;

wherein the beam coupler is movably positioned relative to the procedure eye such that the beam coupler is selectively movable to change at least one of an incidence angle of the redirected scanned light beam into the procedure eye and the target region of the procedure eye.

2. The ophthalmic surgical system of claim 1, wherein:

the at least one light source is configured to generate a diagnostic light beam.

3. The ophthalmic surgical system of claim 2, wherein:

the at least one light source, the beam guidance system, and the beam scanner are part of an diagnostic imaging system; and

the WFOV lens and the beam coupler are configured to guide a returned image light from the target region back to the diagnostic imaging system.

4. The ophthalmic surgical system of claim 3, wherein the diagnostic imaging system is at least one of:

an optical coherence tomography (OCT) system, a multispectral imaging system, a fluorescence imaging system, and a photo-acoustic imaging system.

5. The ophthalmic surgical system of claim 1, wherein:

the at least one light source is configured to generate a treatment light beam.

6. The ophthalmic surgical system of claim 5, wherein:

the at least one light source, the beam guidance system, and the beam scanner are part of an treatment beam delivery system.

7. The ophthalmic surgical system of claim 5, wherein the treatment beam delivery system is a laser beam delivery system.

8. The ophthalmic surgical system of claim 1, wherein:

the at least one light source is configured to generate both a diagnostic light beam and a treatment light beam.

9. The ophthalmic surgical system of claim 1, wherein the beam scanner is configured:

to receive the diagnostic light beam from the beam guidance system;

to generate a scanned diagnostic light beam;

to receive the treatment light beam from the beam guidance system; and

to generate a scanned treatment light beam.

10. The ophthalmic surgical system of claim 1, wherein:

the ophthalmic surgical system comprises a surgical microscope; and

the beam coupler is configured to redirect the scanned light beam into an optical pathway of the surgical microscope;

wherein the beam coupler is movably positioned between the surgical microscope and the procedure eye, the beam coupler being selectively movable relative to the surgical microscope and the procedure eye.

11. The ophthalmic surgical system of claim 10, wherein:

the beam coupler comprises at least one of a dichroic mirror, a notch filter, a hot mirror, and a cold mirror in a tilted position.

12. The ophthalmic surgical system of claim 10, wherein:

the beam coupler is coupled to the surgical microscope with a defined optical/optomechanical relationship.

13. The ophthalmic surgical system of claim 12, wherein:

the beam coupler is coupled to the surgical microscope by at least one of a suspension system, a mechanical frame, a protruding arm, a conical structure, a magnetic member, an elastic member, and a plastic member.

14. The ophthalmic surgical system of claim 10, wherein:

the beam coupler is operated without a defined optical/optomechanical relationship to the surgical microscope.

15. The ophthalmic surgical system of claim 14, wherein:

the beam coupler is coupled to a support arm.

16. The ophthalmic surgical system of claim 10, wherein:

the beam scanner and the beam coupler are integrated into one optical block.

17. The ophthalmic surgical system of claim 16, wherein:

the optical block is selectively movable relative to the surgical microscope and the procedure eye.

18. The ophthalmic surgical system of claim 17, wherein:

the optical block is selectively movable with six degrees of freedom.

19. The ophthalmic surgical system of claim 16, wherein:

the beam coupler is selectively rotatable independent of movement of the optical block.

20. The ophthalmic surgical system of claim 1, wherein:

the WFOV lens is a macular lens configured to be contacted to the procedure eye.

21. The ophthalmic surgical system of claim 1, wherein:

the WFOV lens is an ocular lens configured to be spaced from the procedure eye.

22. The ophthalmic surgical system of claim 1, wherein:

the beam scanner is at least one of a pair of scanning mirrors, a micro-mirror device, a MEMS based device, a deformable platform, a galvanometer-based scanner, a polygon scanner and a resonant PZT scanner.

23. The ophthalmic surgical system of claim 1, wherein:

the beam guidance system comprises at least one of a fiber optical guide and a free space guidance system.

24. A method of operating a surgical optical coherence tomography (OCT) visualization system, the method comprising:

generating an imaging light beam using a light source;

guiding the imaging light beam from the light source to a beam scanner using a beam guidance system;

generating a scanned imaging light beam using the beam scanner;

redirecting the scanned imaging light beam using a beam coupler, including redirecting the scanned imaging light beam into the optical pathway of a surgical microscope;

guiding the redirected scanned imaging light beam into a target region of a procedure eye using a wide field of view (WFOV) lens; and

selectively moving the beam coupler to change at least one of an incidence angle of the redirected scanned imaging light beam into the procedure eye and the target location of the procedure eye.

25. The method of claim 24, wherein moving the beam coupler includes:

rotating the beam coupler.

26. The method of claim 24, wherein moving the beam coupler includes at least one of:

rotating an optical block comprising the beam coupler and the beam generator about at least one of a first axis, a second axis, and a third axis; and

translating the optical block along at least one of the first axis, the second axis, and the third axis.

27. The method of claim 24, wherein further comprising:

repeating the moving step to generate imaging information associated with at least one of different incidence angles and different target locations in the procedure eye; and

combining the imaging information associated with the at least one of the different incidence angles and the different target locations to generate combined imaging information.