Bernoulli gripper for intraocular and contact lenses

Patent metadata

Field	Value
Publication number	US-11864992-B2
Application number	US-202217651493-A
Country	US
Kind code	B2
Filing date	Feb 17, 2022
Priority date	Nov 1, 2017
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

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 Bernoulli gripper for ophthalmic lenses, the Bernoulli gripper comprising:
a gripper body with a first cavity corresponding in shape to an optic zone of an ophthalmic lens;
a first channel formed within the gripper body, the first channel penetrating the first cavity at a first end of the first channel; and
a second channel formed within the gripper body, the second channel penetrating the gripper body at a first end of the second channel, wherein:
the first channel is enabled to subject the ophthalmic lens, positioned with the optic zone in proximity to the first cavity, to a first pressure force against the first cavity by a Bernoulli effect, and
the second channel is enabled to subject at least a portion of the ophthalmic lens positioned in proximity to the second channel to a second pressure force different from the first pressure force.

2. The Bernoulli gripper of claim 1 , wherein the first pressure force is sufficient to grip the ophthalmic lens at the first cavity to enable positioning of the ophthalmic lens when the gripper body is correspondingly positioned.

3. The Bernoulli gripper of claim 1 , wherein the first cavity is enabled to grip the ophthalmic lens without the optic zone contacting the first cavity when the first pressure force acts against the first cavity.

4. The Bernoulli gripper of claim 1 , wherein the first channel is enabled to supply an electrostatically charged fluid medium.

5. The Bernoulli gripper of claim 1 , wherein the first channel is enabled to supply air.

6. The Bernoulli gripper of claim 1 , wherein the ophthalmic lens is an intraocular lens comprising the optic zone and a haptic, and further comprising a mechanical stop to detain the haptic and prevent rotation of the ophthalmic lens, wherein the at least the portion of the ophthalmic lens comprises the haptic.

7. The Bernoulli gripper of claim 6 , wherein the mechanical stop further comprises a second cavity correspondingly formed to receive a distal portion of the haptic, wherein the second channel penetrates the second cavity at the first end of the second channel, wherein the second channel is enabled to supply a fluid medium to the second cavity at a velocity such that the haptic positioned in proximity to the second cavity is subject to the second pressure force against the second cavity by the Bernoulli effect.

8. The Bernoulli gripper of claim 6 , wherein:
the second channel penetrates the mechanical stop at the first end of the second channel,
the second pressure force is applied to the haptic when the haptic is detained by the mechanical stop, and
the second pressure force comprises underpressure.

9. The Bernoulli gripper of claim 1 , wherein:
the first channel penetrates the first cavity at a center portion of the first cavity, and
the second channel penetrates an edge portion of the first cavity at the first end of the second channel,
wherein the second channel is enabled to supply a fluid medium to the edge portion of the first cavity at a velocity such that the ophthalmic lens, positioned with the optic zone in proximity to the first cavity, is subject to the second pressure force laterally within the first cavity by the Bernoulli effect.

10. The Bernoulli gripper of claim 1 , wherein:
the ophthalmic lens is an intraocular lens comprising the optic zone and a haptic,
the second pressure force is applied to the haptic when the optic zone is detained in the first cavity, and
the second pressure force comprises underpressure.

11. A Bernoulli gripper for intraocular lenses, the Bernoulli gripper comprising:
a gripper body with a cavity corresponding in shape to an optic zone of an intraocular lens;
a first channel formed within the gripper body, the first channel penetrating the cavity at a first end of the first channel;
a mechanical stop enabled to detain a haptic of the intraocular lens to prevent rotation of the intraocular lens; and
a second channel formed within the gripper body, the second channel penetrating the gripper body at a first end of the second channel and penetrating the mechanical stop at second end of the second channel;
wherein:
the first channel is enabled to supply a first fluid medium to the cavity at a first velocity such that the intraocular lens positioned with the optic zone in proximity to the cavity is subject to a first pressure force against the cavity by a Bernoulli effect; and
the second channel is enabled to subject at least a portion of the intraocular lens positioned in proximity to the second channel to a second pressure force, wherein the second pressure force is applied to the haptic when the haptic is detained by the mechanical stop, and wherein the second pressure force comprises underpressure.

12. The Bernoulli gripper of claim 11 , wherein:
the mechanical stop protrudes from the gripper body, and
a side of the mechanical stop is enabled to engage a side of the haptic to detain the intraocular lens.

13. The Bernoulli gripper of claim 11 , wherein the first pressure force is sufficient to grip the intraocular lens at the cavity to enable positioning of the intraocular lens when the gripper body is correspondingly positioned.

14. The Bernoulli gripper of claim 11 , wherein the cavity is enabled to grip the intraocular lens without the optic zone contacting the cavity when the first pressure force acts against the cavity.

15. The Bernoulli gripper of claim 11 , wherein the first channel is enabled to supply the first fluid medium when the first fluid medium is electrostatically charged.

16. The Bernoulli gripper of claim 11 , wherein
the second channel is enabled to supply a second fluid medium to
the mechanical stop at a second velocity such that the haptic detained by the mechanical stop is subject to the second pressure force.

17. A method for gripping ophthalmic lenses, the method comprising:
placing a gripper body in proximity to an ophthalmic lens, the gripper body having:
a first cavity corresponding in shape to an optic zone of the ophthalmic lens;
a first channel formed within the gripper body, the first channel penetrating the first cavity at a first end of the first channel; and
a second channel formed within the gripper body, the second channel penetrating the gripper body at a first end of the second channel;

subjecting the ophthalmic lens positioned with the optic zone in proximity to the first cavity to a first pressure force against the first cavity by a Bernoulli effect through the first channel; and
subjecting at least a portion of the ophthalmic lens positioned in proximity to the second channel to a second pressure force different from the first pressure force through the second channel.

Assignees

• Alcon Inc

Inventors

• Huehn Dominik
• Koehler Jochen

Classifications

• A61F2/1664 Primary

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

• A61F2/16 Primary

  Intraocular lenses · CPC title

• A61F9/0061

  Devices for putting-in contact lenses · CPC title

• A61F2002/1681

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

• B29D11/0024

  using a vacuum suction gripper · CPC title