Multiple beam laser treatment device

• US 10,130,424 B2
• Filed: 01/30/2015
• Issued: 11/20/2018
• Est. Priority Date: 01/31/2014
• Status: Active Grant

• Current Assignee: Biolase Incorporated
• Original Assignee: Biolase Incorporated
• Inventors: Boutoussov, Dmitri, Netchitailo, Vladimir, Carino, Amado
• Primary Examiner(s): Roane, Aaron
• Application Number:
  US14/610,650
• Publication Number:
  US 20150216597A1
• Time in Patent Office: 1,390 Days
• Field of Search: 606 13
• CPC Class Codes: A61B 18/20 using laser
• CPC Class Codes: A61B 2018/00577 Ablation
• CPC Class Codes: A61B 2018/00601 Cutting
• CPC Class Codes: A61B 2018/2065 Multiwave; Wavelength mixing, e.g. using four or more wavelengths pilot laser A61B2018/2025
• CPC Class Codes: A61B 2018/208 with multiple treatment beams not sharing a common path, e.g. non-axial or parallel
• CPC Class Codes: A61N 5/0624 for eliminating microbes, germs, bacteria on or in the body
• CPC Class Codes: A61N 5/067 using laser light

Abstract

Embodiments of the invention include a treatment device and corresponding treatment method for laser wound healing, the device and method making use of the simultaneous action of multiple laser types and laser wavelengths which are applied at human tissue. The treatment device generally includes a laser system and a hand-piece which is coupled to the laser system. The hand-piece is designed so that one or multiple laser beams are applied at relatively small spot and at a relatively high power level, and are surrounded by a relatively large spot of another laser beam with a relatively low power level. In a preferred implementation, the hand-piece is adapted to facilitate the emission of first and second laser beams together with a third laser beam which is delivered at a different spatial profile in comparison to the first and second laser beams.

Claims

1. A multi-wavelength laser treatment device comprising a handpiece configured to couple to a plurality of laser sources, the handpiece including three laser sources and comprising:

a main body comprising an emission end including an output end;

at least one waveguide positioned at least partially within the main body, the at least one wave guide including at least one output emission surface and configured to emit a plurality of laser beams generated by the plurality of laser sources; and

wherein the handpiece is configured to emit a central collective emission region with a first diameter comprising a first laser beam and a second laser beam, and a peripheral area or region having a second diameter defined by the emission of a third laser beam, and wherein the each of the first, second, and third laser beams being emitted from separate laser sources of the three laser sources,

the second diameter being greater than the first diameter and the central collective emission region is encircled by the peripheral area or region.

2. The device of claim 1, wherein the emission end comprises a generally cylindrical configuration.

3. The device of claim 1, wherein the at least one waveguide includes a distal end portion protruding from the emission end and extending away from the main body.

4. The device of claim 3, wherein the at least one waveguide comprises a central waveguide with a generally circular cross-section and the distal end portion is coincident with an axis a defined by a central portion of the emission end.

5. The device of claim 4, wherein the at least one waveguide comprises at least one peripheral waveguide positioned in the main body at least partially encircling the central waveguide.

6. The device of claim 5, wherein the at least one peripheral waveguide is positioned in the main body between the outer edge of the central waveguide and the outer surface of the main body.

7. The device of claim 5, wherein the handpiece is configured to emit at least the third laser beam from the at least one peripheral waveguide.

8. The device of claim 4, wherein the at least one waveguide comprises a plurality of peripheral waveguides and the central waveguide is concentrically positioned with the plurality of peripheral waveguides.

9. The device of claim 8, wherein the plurality of peripheral waveguides are substantially evenly spaced.

10. The device of claim 8, wherein at least some of the plurality of peripheral waveguides are unevenly spaced with respect to each other.

11. The device of claim 1, wherein the handpiece is configured to emit at least the first and second laser beams from an outer emission surface of the output end.

12. The device of claim 1, wherein the at least one waveguide comprises an optical window.

13. The device of claim 12, wherein the optical window is positioned within a recess of the main body.

14. The device of claim 12, wherein the optical window is adapted to enable the delivery of the first, second, and third laser beams.

15. The device of claim 1, wherein the outer emission surface is substantially flush or continuous with emission end.

16. A multi-wavelength laser treatment device comprising a handpiece configured to couple to a plurality of laser sources, the handpiece including three laser sources comprising:

a main body comprising an emission end including an output end;

at least one waveguide positioned at least partially within the main body, the at least one wave guide including at least one output emission surface and configured to emit a plurality of laser beams generated by the plurality of laser sources; and

wherein the handpiece is configured to emit a collective emission comprising a first laser beam and a second laser beam; and

wherein the handpiece is configured to project the collective emission as a first spot on a surface, the first spot at least partially overlapping a second spot formed from a third laser beam emitted from the handpiece, and wherein the each of the first, second, and third laser beams are emitted from separate laser sources of the three laser sources; and

an optical window integrated into the main body, the optical window comprising an outer surface of a generally circular configuration forming the output end, and wherein the optical window is adapted to facilitate the delivery of the first, second, and third laser beams.

17. The multi-wavelength laser treatment device of claim 16, wherein the delivery of the first, second, and third laser beams includes a central collective emission region with a first diameter comprising the first and second laser beams, and a peripheral area or region having a second diameter defined by the emission of the third laser beam, the second diameter being greater than the first diameter and the central collective emission region is encircled by the peripheral area or region.

18. The multi-wavelength laser treatment device of claim 16, wherein the outer diameter of the optical window is smaller than the outer diameter of the main body.

19. The multi-wavelength laser treatment device of claim 16, wherein the main body includes a recess into which the optical window is positioned.