Spectrally-encoded endoscopy techniques and methods

• US 9,791,317 B2
• Filed: 12/12/2016
• Issued: 10/17/2017
• Est. Priority Date: 01/19/2006
• Status: Active Grant

• Current Assignee: The General Hospital Corporation (Mass General Brigham, Inc.)
• Original Assignee: The General Hospital Corporation (Mass General Brigham, Inc.)
• Inventors: Shishkov, Milen, Tearney, Guillermo J., Bouma, Brett Eugene, Yelin, Dvir, Iftimia, Nicusor
• Primary Examiner(s): LEPISTO, RYAN A
• Application Number:
  US15/376,144
• Publication Number:
  US 20170160132A1
• Time in Patent Office: 309 Days
• CPC Class Codes: A61B 1/00096 Optical elements
• CPC Class Codes: A61B 1/00167 Details of optical fibre bundles, e.g. shape or fibre distribution
• CPC Class Codes: A61B 1/00172 with means for scanning
• CPC Class Codes: A61B 1/00188 with focusing or zooming features
• CPC Class Codes: A61B 1/002 having rod-lens arrangements A61B1/055 takes precedence
• CPC Class Codes: A61B 1/0638 providing two or more wavelengths
• CPC Class Codes: A61B 5/0062 Arrangements for scanning
• CPC Class Codes: A61B 5/0066 Optical coherence imaging
• CPC Class Codes: A61B 5/0068 Confocal scanning
• CPC Class Codes: A61B 5/0084 for introduction into the body, e.g. by catheters A61B5/1459 takes precedence
• CPC Class Codes: A61B 5/0086 using infrared radiation
• CPC Class Codes: B24B 9/14 of optical work, e.g. lenses, prisms control of the position of the tool for bevelling optical work B24B47/225
• CPC Class Codes: G01J 3/02 Details
• CPC Class Codes: G01J 3/0205 Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
• CPC Class Codes: G01J 3/0208 using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
• CPC Class Codes: G01J 3/0218 using optical fibers
• CPC Class Codes: G01J 3/0256 Compact construction
• CPC Class Codes: G01J 3/18 using diffraction elements, e.g. grating gratings per se G02B
• CPC Class Codes: G02B 23/2453 of the proximal end
• CPC Class Codes: G02B 23/2469 using optical fibres
• CPC Class Codes: G02B 23/26 : using light guides for illumination G02B23/2469
• CPC Class Codes: G02B 5/18 : Diffraction gratings holographic optical elements G02B5/32, G03H; integrally combined with optical fibres G02B6/02057; for coupling light guides G02B6/34; integrally combined with optical integrated light guides G02B6/12; grating systems G02B27/44

Abstract

Exemplary apparatus for method for forming at least one spectral encoding endoscopy configuration. For example, it is possible to modify a spacer configuration and an lens optics configuration to have respective predetermined lengths, and also to modify a dispersive optics configuration to have a further predetermined length. Further, the modified spacer and modified lens optics configurations can be attached to one another to form a combined spacer-lens optics configuration. The modified dispersive optics configuration can be attached to a substrate to form to form a grating substrate configuration. Additionally, the combined spacer-lens optics configuration can be connected to an optical fiber, and the modified attached dispersed optics configuration can be connected to the modified attached lens optics configuration to form the spectral encoding endoscopy configuration(s) which can extends along a particular axis. The dispersive optics configuration can be modified to be at a predetermined angle with respect to the particular axis.

Claims

1. A method for forming at least one spectral encoding endoscopy configuration, comprising:

a) changing respective predetermined lengths of a spacer configuration and an lens optics configuration by altering respective physical aspects thereof;

b) modifying a dispersive optics configuration to have a further predetermined length;

c) attaching the changed spacer and changed lens optics configurations to one another to form a combined spacer-lens optics configuration;

d) attaching the modified dispersive optics configuration to a substrate to form a grating substrate configuration; and

e) connecting the combined spacer-lens optics configuration to an optical fiber, and the modified attached dispersed optics configuration to the changed attached lens optics configuration to form the at least one spectral encoding endoscopy configuration which extends along a particular axis,

wherein the dispersive optics configuration is modified to be at a predetermined angle with respect to the particular axis.

2. The method according to claim 1, wherein the lens optics configuration includes a GRIN lens.

3. The method according to claim 1, wherein the dispersive optics configuration including a grating, and wherein the substrate is a grating substrate.

4. The method according to claim 1, wherein at least one of steps (a) or (b) includes polishing at least one of the spacer configuration, the lens optics configuration, or the dispersive optics configuration.

5. The method according to claim 1, wherein step (c) includes gluing the changed spacer and changed lens optics configurations to one another.

6. The method according to claim 1, wherein step (d) includes gluing the modified dispersive optics configuration to the substrate.

7. The method according to claim 1, wherein step (e) includes gluing the combined spacer-lens optics configuration to the optical fiber.

8. The method according to claim 1, further comprising, prior to step (e), cleaving the optical fiber.

9. The method according to claim 1, further comprising providing the at least one spectral encoding endoscopy configuration into a sheath.

10. The method according to claim 1, wherein the predetermined lengths of the spacer configuration and the lens optics configuration are reduced by polishing the spacer configuration and the lens optics configuration.

11. The method according to claim 1, wherein the further predetermined length is reduced by polishing the dispersive optics configuration.

12. A method for forming at least one spectral encoding endoscopy configuration, comprising:

a) modifying a spacer configuration and an lens optics configuration to have respective predetermined lengths;

b) modifying a dispersive optics configuration to have a further predetermined length;

c) attaching the modified spacer and modified lens optics configurations to one another to form a combined spacer-lens optics configuration;

d) attaching the modified dispersive optics configuration to a substrate to form a grating substrate configuration; and

e) connecting the combined spacer-lens optics configuration to an optical fiber, and the modified attached dispersed optics configuration to the modified attached lens optics configuration to form the at least one spectral encoding endoscopy configuration which extends along a particular axis,

wherein the dispersive optics configuration is modified to be at a predetermined angle with respect to the particular axis, wherein step (b) includes stacking and mounting a plurality of glass rods with different diameters in a mount at a particular location.

13. The method according to claim 12, wherein the glass rods are separated from one another by a lead foil.

14. The method according to claim 12, wherein step (b) further includes polishing the stacked and mounted glass rods at the predetermined angle and at a particular end inside the mount.

15. The method according to claim 14, wherein step (b) further includes cleaning a polished surface of at least one of the polished glass rods thereby providing the dispersive optics configuration.

16. The method according to claims 14, wherein, after the polishing substep, step (b) includes further polishing the glass rods at a further end thereof that is different from the particular end.