Methods and systems for enhanced medical procedure visualization

• US 8,050,745 B2
• Filed: 08/22/2006
• Issued: 11/01/2011
• Est. Priority Date: 02/22/2004
• Status: Expired due to Fees

• Current Assignee: Doheny Eye Institute
• Original Assignee: Doheny Eye Institute
• Inventors: Humayun, Mark, Caffey, Sean
• Primary Examiner(s): Casler; Brian
• Assistant Examiner(s): Lamprecht; Joel
• Application Number:
  US11/508,734
• Publication Number:
  US 20070244367A1
• Time in Patent Office: 1,897 Days
• Field of Search: 600/407, 600/473, 600/475, 436/164, 436/171, 436/63, 436/169, 436/172, 606 4- 6, 606/10, 606/15, 424/9.6
• US Class Current: 600/473
• CPC Class Codes: A61B 90/20 Surgical microscopes characterised by non-optical aspects
• CPC Class Codes: A61B 90/30 Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for
• CPC Class Codes: A61B 90/361 Image-producing devices, e.g. surgical cameras
• CPC Class Codes: A61F 9/007 Methods or devices for eye surgery
• CPC Class Codes: G02B 21/0012 Surgical microscopes counterbalanced structures for surgical microscopes G02B7/001
• CPC Class Codes: G02B 23/12 with means for image conversion or intensification

Abstract

The present invention employs image intensification for medical procedures within the human body. Methods and systems of the invention utilize infrared radiation (e.g. greater than about 750 nm) illumination and visualization of a surgical treatment area. Preferred methods and systems of the invention incorporate use of an infrared radiation visualization system which may be known as “night vision” systems.

Claims

1. A method for viewing an ophthalmic surgical area in a human eye on which surgery is or will be performed, or for viewing the ophthalmic surgical area otherwise being examined by a medical professional, comprising:

directing, using a radiation source apparatus, infrared radiation having wavelength(s) of about 750 nm or greater into the ophthalmic surgical area;

visualizing the ophthalmic surgical area in the substantial absence of visible light having a wavelength of less than about 750 nm, through using an imaging apparatus capable of generating an anatomical tissue surface image of the ophthalmic surgical area under such light conditions by only detecting the infrared radiation that is directed into the ophthalmic surgical area and that is naturally reflected from the ophthalmic surgical area; and

performing an ophthalmic procedure on the ophthalmic surgical area or examining the ophthalmic surgical area using the visualizing of the ophthalmic surgical area in the substantial absence of visible light,

wherein the imaging apparatus is a night vision viewing apparatus comprising an image intensifier tube.

2. The method of claim 1, wherein the radiation source apparatus and the imaging apparatus are part of a single device.

3. The method of claim 1, wherein the directing comprises directing infrared radiation having wavelength(s) of from about 800 nm to 850 nm.

4. The method of claim 1, wherein the imaging apparatus employed to view the ophthalmic surgical area is an image intensification apparatus.

5. The method of claim 1, wherein the night vision viewing apparatus further comprises a microscope for magnifying the ophthalmic surgical area.

6. The method of claim 1, wherein the performing comprises performing an ophthalmic procedure.

14. The method of claim 1, wherein the ophthalmic surgical area is a contoured area comprising structures of the body.

15. The method of claim 1, wherein the ophthalmic procedure is a diagnostic procedure.

16. The method of claim 1, wherein the ophthalmic procedure is a surgical procedure.

17. The method of claim 1, wherein the ophthalmic procedure is a neuro procedure.

18. The method of claim 1, wherein the using the visualizing of the ophthalmic surgical area comprises using the visualizing of the ophthalmic surgical area in real-time.

19. The method of claim 1, wherein the visualizing the ophthalmic surgical area occurs without applying a compound to induce pupil dilation.

20. The method of claim 1, wherein the visualizing the ophthalmic surgical area occurs without the use of a dye compound.

7. A method for viewing an ophthalmic surgical area in a human eye on which surgery is or will be performed, comprising:

directing, using a radiation source apparatus, infrared radiation having wavelength(s) of about 750 nm or greater into the ophthalmic surgical area;

visualizing the ophthalmic surgical area in the substantial absence of visible light having a wavelength of less than about 750 nm, through using an imaging apparatus capable of generating a visual anatomical tissue surface image of the ophthalmic surgical area under such light conditions by detecting only the infrared radiation directed into ophthalmic surgical area by the radiation source apparatus that is reflected from the ophthalmic surgical area; and

performing an ophthalmic procedure within the viewed ophthalmic surgical area in the substantial absence of visible light,

wherein the imaging apparatus is a night vision viewing apparatus comprising an image intensifier tube.

8. The method of claim 7 wherein one or more dye compounds that are visible in radiation having wavelength(s) of 750 nm or greater are applied to the ophthalmic surgical area.

9. A system for viewing an ophthalmic surgical area in a human eye on which surgery is or will be performed, or for viewing the ophthalmic surgical area otherwise being examined by a medical professional, comprising:

an infrared radiation source apparatus to direct infrared radiation at the ophthalmic surgical area-having wavelength(s) of about 750 nm or greater and in the substantial absence of visible light having a wavelength of less than about 750 nm;

a night vision viewing apparatus comprising an image intensifier tube and a detector apparatus receiving infrared radiation generated by the infrared radiation source apparatus that is reflected from the ophthalmic surgical area; and

a display apparatus configured to display an anatomical tissue surface image of the ophthalmic surgical area using only the infrared radiation generated by the infrared radiation source apparatus that is reflected from the ophthalmic surgical area to view the ophthalmic surgical area at about 750 nm or greater while performing an ophthalmic procedure.

10. The system of claim 9 further comprising one or more dyes that are visible at 750 nm or greater.

11. The system of claim 10 wherein the one or more dyes are formulated for application to the ophthalmic surgical area.

12. A computer-implemented method for visualizing an ophthalmic surgical area comprising:

transmitting infrared radiation from a visualization device into the ophthalmic surgical area;

detecting reflected infrared radiation from the ophthalmic surgical area using a night vision viewing apparatus comprising an image intensifier tube and a detector;

displaying an anatomical tissue surface image of the ophthalmic surgical area using only the transmitted infrared radiation that is reflected from the ophthalmic surgical area;

wherein visible light is substantially absent at the ophthalmic surgical area.

13. A computer-implemented method of claim 12, wherein a surgical procedure is performed using the displaying of the anatomical tissue surface image of the ophthalmic surgical area.