Bernoulli gripper for intraocular and contact lenses

Patent metadata

Field	Value
Publication number	US-12440326-B2
Application number	US-202318517788-A
Country	US
Kind code	B2
Filing date	Nov 22, 2023
Priority date	Nov 1, 2017
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

A Bernoulli gripper for ophthalmic lenses includes a gripper body with a first cavity corresponding in shape to an optic zone of an ophthalmic lens and a first channel formed within the gripper body. The first channel penetrates the first cavity at one end and includes a first port in the gripper body at another end of the first channel. The first channel is enabled to supply a fluid medium from the first port to the first cavity at a first velocity such that the ophthalmic lens positioned with the optic zone in proximity to the first cavity is subject to a first pressure force against the first cavity by the Bernoulli effect.

First claim

The invention claimed is:

1. A method for gripping an ophthalmic lens, the method comprising:
placing a gripping portion of a gripper body in proximity to an optic zone of an ophthalmic lens, wherein:
the ophthalmic lens comprises:
the optic zone, the optic zone having a curvature; and
one or more haptics coupled to the optic zone;

the gripper body comprises:
the gripping portion, the gripping portion having a concave surface or convex surface corresponding to the curvature of the optic zone;
a channel formed within the gripper body and penetrating the gripping portion at a first end of the channel; and
one or more mechanical stops disposed around a perimeter of the gripping portion;

subjecting the ophthalmic lens to a pressure force against the gripping portion by a Bernoulli effect through the channel; and
engaging the one or more haptics of the ophthalmic lens with the one or more mechanical stops to laterally align the ophthalmic lens and control rotation of the ophthalmic lens.

2. The method of claim 1 , wherein the pressure force is sufficient to grip the ophthalmic lens against the gripping portion to enable positioning of the ophthalmic lens when the gripper body is correspondingly positioned.

3. The method of claim 1 , wherein the gripping portion is configured to grip the ophthalmic lens without the optic zone contacting the gripping portion when the ophthalmic lens is subjected to the pressure force.

4. The method of claim 1 , wherein the channel penetrates the gripping portion at a center portion of the gripping portion.

5. The method of claim 1 , wherein the one or more mechanical stops comprise mechanical protrusions extending from the gripper body, the mechanical stops dimensioned in length to correspond to a thickness of the one or more haptics of the ophthalmic lens.

6. The method of claim 1 , wherein the one or more mechanical stops comprise four mechanical stops disposed around the perimeter of the gripping portion.

7. The method of claim 1 , wherein the pressure force comprises pressurized air, ionized air, or another gas.

8. The method of claim 1 , wherein the channel is enabled to supply an electrostatically charged fluid medium.

9. The method of claim 1 , wherein:
the ophthalmic lens comprises an intraocular lens; and
the gripping portion of the gripper body comprises the concave surface, the concave surface forming a cavity corresponding in shape to the optic zone of the intraocular lens.

10. A Bernoulli gripper for ophthalmic lenses, the Bernoulli gripper comprising:
a gripper body comprising:
a gripping portion, the gripping portion having a concave surface or convex surface corresponding to a curvature of an optic zone of an ophthalmic lens;
a channel formed within the gripper body and penetrating the gripping portion at a first end of the channel, the channel configured to subject the ophthalmic lens, positioned in proximity to the gripping portion, to a pressure force against the gripping portion by a Bernoulli effect through the channel; and
one or more mechanical stops formed around a perimeter of the gripping portion, the mechanical stops configured to engage one or more haptics of the ophthalmic lens to laterally align the ophthalmic lens and control rotation of the ophthalmic lens.

11. The Bernoulli gripper of claim 10 , wherein the pressure force is sufficient to grip the ophthalmic lens against the gripping portion to enable positioning of the ophthalmic lens when the gripper body is correspondingly positioned.

12. The Bernoulli gripper of claim 10 , wherein the gripping portion is configured to grip the ophthalmic lens without the optic zone contacting the gripping portion when the ophthalmic lens is subjected to the pressure force.

13. The Bernoulli gripper of claim 10 , wherein the pressure force comprises pressurized air, ionized air, or another gas.

14. The Bernoulli gripper of claim 10 , wherein the channel penetrates the gripping portion at a center portion of the gripping portion.

15. The Bernoulli gripper of claim 10 , wherein the one or more mechanical stops comprise mechanical protrusions extending from the gripper body, the mechanical stops dimensioned in length to correspond to a thickness of the one or more haptics of the ophthalmic lens.

16. The Bernoulli gripper of claim 10 , wherein the one or more mechanical stops comprise four mechanical stops disposed around the perimeter of the gripping portion.

17. The Bernoulli gripper of claim 10 , wherein the channel is enabled to supply an electrostatically charged fluid medium.

18. The Bernoulli gripper of claim 10 , wherein:
the ophthalmic lens comprises an intraocular lens; and
the gripping portion of the gripper body comprises the concave surface, the concave surface forming a cavity corresponding in shape to the optic zone of the intraocular lens.

Assignees

• Alcon Inc

Inventors

• Huehn Dominik
• Koehler Jochen

Classifications

• A61F9/0061

  Devices for putting-in contact lenses · CPC title

• A61F2002/1681

  having supporting structure for lens, e.g. haptics · CPC title

• A61F2/1664

  for manual insertion during surgery, e.g. forceps-like instruments · CPC title

• A61F2240/001

  Designing or manufacturing processes · CPC title

• B65G47/911

  with air blasts producing partial vacuum · CPC title