IP Library › Granted Patent US 12,295,886
Granted Patent B2
US 12,295,886 · App. 17/273,323 · Granted May 13, 2025

Protection for direct selective laser trabeculoplasty

Inventors: Zachary Sacks (Modiin, IL); Daria Lemann-Blumenthal (Bitzaron, IL)
Assignee: Belkin Vision Ltd.
A61F9/0084A61F9/009A61F2009/00846A61F2009/00868A61F2009/00891
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Quick Facts
Patent No.
US 12,295,886
App. No.
17/273,323
Granted
May 13, 2025
Kind
B2
Abstract

An apparatus includes an optical unit ( 30 ), including a light source ( 66 ), one or more beam-directing elements ( 50, 56 ), and a radiation source ( 48 ). The radiation source is configured to irradiate an eye ( 25 ) of a patient ( 22 ) with one or more treatment beams ( 52 ) by emitting the treatment beams toward the beam-directing elements, while the eye fixates on the light source by virtue of the light source transmitting visible light ( 68 ). The apparatus further includes an optical filter ( 70 ) configured to inhibit passage of the treatment beams, but not the visible light, therethrough, while interposing between the beam-directing elements and a pupil ( 104 ) of the eye. Other embodiments are also described.

Claims (81)

1. Apparatus, comprising:

an optical unit, comprising:

a light source configured to transmit visible fixation light;

one or more beam-directing elements; and

a radiation source, configured to irradiate an eye of a patient with one or more treatment beams having a wavelength between 500 and 850 nm by emitting the treatment beams toward the beam-directing elements, which direct the one or more treatment beams toward the eye, while the eye fixates on the light source by virtue of the light source transmitting the visible fixation light, which has another wavelength different from the wavelength of the treatment beams; and

an optic, comprising:

an optical filter configured to inhibit passage of the treatment beams, but not the visible fixation light, therethrough, while interposing between the beam-directing elements and a pupil of the eye; and

a transparent portion that surrounds the optical filter and is transparent to the treatment beams.

2. The apparatus according to claim 1 , further comprising an eye-stabilizing structure, wherein the radiation source is configured to irradiate the eye by emitting the treatment beams through the structure, and wherein the optic is coupled to the structure.

3. The apparatus according to claim 2 , wherein a proximal end of the structure is configured to couple to the optical unit.

4. The apparatus according to claim 2 , wherein the optic is coupled to a distal end of the structure.

5. The apparatus according to claim 4 , wherein the optic is configured to contact the eye.

6. The apparatus according to claim 2 , wherein a distal end of the structure is configured to contact the eye, and wherein the optic is mounted to an inner wall of the structure.

7. The apparatus according to claim 6 , wherein the optic is mounted between 0.5 and 20 mm from the distal end of the structure.

8. The apparatus according to claim 6 , wherein the distal end of the structure comprises a contact optic configured to contact the eye.

9. The apparatus according to claim 6 , wherein the distal end of the structure comprises a contact ring configured to contact the eye.

10. The apparatus according to claim 6 , further comprising one or more longitudinal elements extending between the inner wall of the structure and the optic, the optic being mounted to the inner wall via the longitudinal elements.

11. The apparatus according to claim 2 , wherein an inner wall of the structure is configured to absorb the treatment beams.

12. The apparatus according to claim 1 , wherein the optical filter is configured to inhibit the passage of the treatment beams by absorbing the treatment beams.

13. The apparatus according to claim 1 , wherein the optical filter is configured to inhibit the passage of the treatment beams by reflecting the treatment beams.

14. The apparatus according to claim 1 , wherein the optical filter comprises an anti-reflective surface configured to reduce reflection of the treatment beams.

15. The apparatus according to claim 1 ,

wherein the optical filter is a first optical filter, and

wherein the optic further comprises a second optical filter that surrounds the transparent portion and is configured to inhibit the passage of the treatment beams.

16. The apparatus according to claim 1 , wherein the optic is configured to contact the eye.

17. The apparatus according to claim 16 , wherein a thickness of the optic is less than 2 mm.

18. The apparatus according to claim 16 , wherein a diameter of the optic is less than 10 mm.

19. The apparatus according to claim 1 ,

wherein the optical unit comprises a front face, which faces toward the eye of the patient, and

wherein the optic is coupled to the front face.

20. The apparatus according to claim 19 ,

wherein the front face comprises an exit window,

wherein the light source is configured to transmit the visible fixation light, and the radiation source is configured to emit the treatment beams, through the exit window, and

wherein the optic overlays the exit window.

21. The apparatus according to claim 19 ,

wherein the front face comprises an exit window,

wherein the light source is configured to transmit the visible fixation light, and the radiation source is configured to emit the treatment beams, through the exit window, and

wherein the optic is embedded within the exit window.

22. The apparatus according to claim 19 , further comprising a longitudinal element extending between the front face and the optic, the optic being coupled to the front face via the longitudinal element.

23. The apparatus according to claim 22 ,

wherein the front face comprises an exit window,

wherein the light source is configured to transmit the visible fixation light, and the radiation source is configured to emit the treatment beams, through the exit window, and

wherein the longitudinal element extends between the exit window and the optic.

24. A method, comprising:

interposing an optic, which includes an optical filter and a transparent portion that surrounds the optical filter, between one or more beam-directing elements and a pupil of an eye of a patient; and

while the optic interposes between the beam-directing elements and the pupil:

using a light source, transmitting visible fixation light through the optical filter; and

while the eye fixates on the light source by virtue of the light source transmitting the visible fixation light, irradiating the eye with one or more treatment beams having a wavelength between 500 and 850 nm by emitting the treatment beams toward the beam-directing elements, which direct the one or more treatment beams toward the eye and through the transparent portion of the optic, which is transparent to the treatment beams,

the optical filter being configured to inhibit passage of the treatment beams but not the visible fixation light, which has another wavelength different from the wavelength of the treatment beams, therethrough.

25. The method according to claim 24 , wherein the optic is coupled to an eye-stabilizing structure, and wherein irradiating the eye comprises irradiating the eye by emitting the treatment beams through the structure.

26. The method according to claim 25 , wherein the light source and the beam-directing elements belong to an optical unit, and wherein emitting the treatment beams through the structure comprises emitting the treatment beams through the structure while a proximal end of the structure is coupled to the optical unit.

27. The method according to claim 25 , wherein the optic is coupled to a distal end of the structure.

28. The method according to claim 27 , wherein interposing the optic comprises interposing the optic by contacting the eye with the optic.

29. The method according to claim 25 , wherein the optic is mounted to an inner wall of the structure, and wherein emitting the treatment beams through the structure comprises emitting the treatment beams through the structure while a distal end of the structure contacts the eye.

30. The method according to claim 29 , wherein the optic is mounted between 0.5 and 20 mm from the distal end of the structure.

31. The method according to claim 29 , wherein the optic is mounted to the inner wall via one or more longitudinal elements extending between the inner wall and the optic.

32. The method according to claim 24 ,

wherein the optical filter is a first optical filter, and

wherein the optic further includes a second optical filter that surrounds the transparent portion and is configured to inhibit the passage of the treatment beams.

33. The method according to claim 24 , wherein interposing the optic comprises interposing the optic by contacting the eye with the optic.

34. The method according to claim 33 , wherein a thickness of the optic is less than 2 mm.

35. The method according to claim 33 , wherein a diameter of the optic is less than 10 mm.

36. The method according to claim 24 ,

wherein the light source and the beam-directing elements belong to an optical unit that includes a front face, which faces toward the eye of the patient, and

wherein the optic is coupled to the front face.

37. The method according to claim 36 ,

wherein the front face includes an exit window,

wherein transmitting the visible fixation light comprises transmitting the visible fixation light through the exit window,

wherein emitting the treatment beams comprises emitting the treatment beams through the exit window, and

wherein the optic overlays the exit window.

38. The method according to claim 36 ,

wherein the front face includes an exit window,

wherein transmitting the visible fixation light comprises transmitting the visible fixation light through the exit window,

wherein emitting the treatment beams comprises emitting the treatment beams through the exit window, and

wherein the optic is embedded within the exit window.

39. The method according to claim 36 , wherein the optic is coupled to the front face via a longitudinal element extending between the front face and the optic.

40. The method according to claim 39 ,

wherein the front face includes an exit window,

wherein transmitting the visible fixation light comprises transmitting the visible fixation light through the exit window,

wherein emitting the treatment beams comprises emitting the treatment beams through the exit window, and

wherein the longitudinal element extends between the exit window and the optic.

Assignments (2)
CHANGE OF NAME Recorded Dec 28, 2021
From: BELKIN LASER LTD.
To: BELKIN VISION LTD.
Reel/Frame 058594/0380 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2021
From: SACKS, ZACHARY; LEMANN-BLUMENTHAL, DARIA
To: BELKIN LASER LTD.
Reel/Frame 055486/0940 →
Continuity (2)
Provisional Application 62751629 · Oct 28, 2018
Related Publication 20210322214A1 · Oct 21, 2021
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