Single-stage docking of a femtosecond laser

Patent metadata

Field	Value
Publication number	US-11311417-B2
Application number	US-201715744675-A
Country	US
Kind code	B2
Filing date	Jan 28, 2017
Priority date	Jan 28, 2017
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

The present disclosure provides a one-piece patient interface for single-stage docking of a femtosecond laser. The one-piece patient interface includes an upper circular portion, a lower conical portion integrally formed with the upper circular portion, an applanation plate in the lower conical portion, and a vacuum connection. The applanation plate may be at least partially coated with an applanation plate coating that is substantially transparent to treatment wavelengths of the femtosecond laser and substantially reflective to non-treatment wavelengths. The disclosure further provides a method for single-stage docking of a femtosecond laser and a system for cutting a flap on an eye using a femtosecond laser.

First claim

The invention claimed is:

1. A one-piece patient interface for single-stage docking of a femtosecond laser, the one-piece patient interface comprising:
an upper circular portion;
a lower conical portion integrally formed with the upper circular portion;
an applanation plate in the lower conical portion, the applanation plate including an applanation plate coating that is substantially transparent to treatment wavelengths of a femtosecond laser and substantially reflective to non-treatment wavelengths, wherein the treatment wavelengths are near-infrared wavelengths greater than 900 nanometers (nm) and the non-treatment wavelengths are ultraviolet wavelengths between 200 and 400 nm; and
a vacuum connection.

2. The one-piece patient interface of claim 1 , wherein the non-treatment wavelengths further include visible wavelengths in the range of 400-700 nm.

3. The one-piece patient interface of claim 1 , wherein the applanation plate coating is coated on an exterior side of the applanation plate.

4. The one-piece patient interface of claim 3 , wherein the applanation plate coating is biocompatible, biologically inactive, does not irritate an eye when in contact, and does not leave residue on the eye when in contact.

5. The one-piece patient interface of claim 1 , wherein the applanation plate coating is coated on an interior side of the applanation plate.

6. A method for single-stage docking of a femtosecond laser comprising:
connecting a vacuum to a vacuum connection of a one-piece patient interface, the one-piece patient interface comprising:
an upper circular portion;
a lower conical portion integrally formed with the upper circular portion;
an applanation plate in the lower conical portion, the applanation plate including an applanation plate coating that is substantially transparent to treatment wavelengths of a femtosecond laser and substantially reflective to non-treatment wavelengths, wherein the treatment wavelengths are near-infrared wavelengths greater than 900 nanometers (nm) and the non-treatment wavelengths are ultraviolet wavelengths between 200 and 400 nm; and
the vacuum connection;

connecting the femtosecond laser to the one-piece patient interface;
positioning the one-piece patient interface on an eye; and
activating the vacuum to hold the one-piece patient interface in contact with the eye and to applanate the eye.

7. The method of claim 6 , further comprising connection or activating no additional vacuum.

8. A system for cutting a flap on an eye using a femtosecond laser, the system comprising:
a femtosecond laser operable to supply a treatment wavelength;
a control device operable to adjust a position of the femtosecond laser;
a one-piece patient interface on an eye, the one-piece patient interface comprising:
an upper circular portion;
a lower conical portion integrally formed with the upper circular portion;
an applanation plate in the lower conical portion, the applanation plate coated with an applanation plate coating that is substantially transparent to treatment wavelengths of the femtosecond laser and substantially reflective to non-treatment wavelengths, wherein the treatment wavelengths are near-infrared wavelengths greater than 900 nanometers (nm) and the non-treatment wavelengths are ultraviolet wavelengths between 200 and 400 nm; and
a vacuum connection;

a detection device operable to detect reflected non-treatment wavelengths and generate data relating to the reflected non-treatment wavelengths detected; and
a processor operable to:
receive data from the detection device relating to the reflected non-treatment wavelengths detected; and
generate measurements for cutting a flap using treatment wavelengths of the femtosecond laser.

9. The system of claim 8 , wherein the non-treatment wavelengths further include visible wavelengths in the range of 400-700 nm.

10. The system of claim 8 , wherein the applanation plate coating is coated on an exterior side of the applanation plate.

11. The system of claim 8 , wherein the applanation plate coating is biocompatible, biologically inactive, does not irritate an eye when in contact, and does not leave residue on the eye when in contact.

12. The system of claim 8 , wherein the applanation plate coating is coated on an interior side of the applanation plate.

Assignees

• Alcon Inc

Inventors

• Martin Peter
• Grampp Jörg

Classifications

• A61F9/00836 Primary

  Flap cutting · CPC title

• A61F2009/00872

  Cornea · CPC title

• A61F9/009 Primary

  Auxiliary devices making contact with the eyeball and coupling in laser light, {e.g. goniolenses (apparatus for eye examination A61B3/0008)} · CPC title

• A61N5/0613

  Apparatus adapted for a specific treatment · CPC title

• A61F9/00804

  Refractive treatments · CPC title