IP Library Granted Patent US 12,508,192
Granted Patent B2
US 12,508,192 · App. 17/402,539 · Granted Dec 30, 2025

Device and method for dry eye treatment

Inventor: Aizhong Zhang (Rochester, NY)
A61H15/02A61H7/004A61H15/0078A61H2015/0014A61H2015/0071A61H2201/0119A61H2201/0207A61H2201/0228A61H2201/0285A61H2201/1207A61H2201/1463A61H2201/1604A61H2201/165A61H2201/1692A61H2201/5007A61H2201/5082A61H2205/024
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Quick Facts
Patent No.
US 12,508,192
App. No.
17/402,539
Granted
Dec 30, 2025
Kind
B2
Abstract

A dry eye treatment device, having a roller, a holder, wherein the roller contacts and rolls over an eyelid in a plurality of directions in a treatment; a heating element to generate heat, wherein at least a portion of the heat is transferred to the roller; a temperature monitoring system, which has a thermal sensor and a temperature control circuit; and an electric power source. The roller is of a convex cylindrical or concave cylindrical shape. A method for dry eye treatment, of cleaning an eyelid with a first cleansing wipe; heating a roller to a predetermined temperature; applying thermally conductive gel between the roller and the eyelid; rolling the roller over the eyelid in a plurality of directions; and removing the thermally conductive gel and expressed debris with a second cleansing wipe; and further, increasing the temperature by an increment and repeating the treatment method.

Claims (45)

1 . A dry eye treatment device, comprising:

a roller, wherein said roller is connected to a holder, wherein said roller is adapted to contact and roll over an eyelid in a plurality of directions in a treatment, wherein said plurality of directions include a direction along a margin of said eyelid and a direction perpendicular to said margin of said eyelid;

a heating element to generate heat, wherein said heating element is outside said roller, wherein at least a portion of said heat is transferred from said heating element to said roller by a heat transfer element with thermal conduction, wherein said heat transfer element passes through a central bore of a shaft of said roller, wherein at least a portion of said heat transfer element is thermally conductive and electrically insulating;

a temperature monitoring system, wherein said temperature monitoring system comprises a thermal sensor and a temperature control circuit;

an electric power source to electrically heat said heating element; and

further comprising

a thermally insulating element adapted to be placed in between a palpebral conjunctiva and a cornea to limit heating to said eyelid.

2 . The device of claim 1 , wherein said roller is of a convex cylindrical shape or a concave cylindrical shape.

3 . The device of claim 1 , wherein said thermal sensor measures a temperature of a surface of said roller or a temperature of an element thermally connected with a surface of said roller, wherein said temperature control circuit ensures said temperature of said surface of said roller is within a predetermined temperature range, wherein said predetermined temperature range is a temperature range within 40 to 60° C.

4 . The device of claim 1 , further comprising:

a thermally conductive gel to be applied to adapt to said roller and said eyelid in said treatment.

5 . The device of claim 1 , wherein said roller comprises a thermally conductive coating layer.

6 . The device of claim 1 , wherein said roller comprises a roller surface having protrusions for massaging.

7 . The device of claim 1 , wherein said heating element is a resistance heating element outside said roller.

8 . The device of claim 1 , wherein said heating element is a thermoelectric heating unit outside said roller.

9 . The device of claim 1 , wherein said heating element is an induction heating unit outside said roller.

10 . The device of claim 1 , wherein said heat transfer element comprises a contact element, wherein said contact element rubs a surface of said roller when said roller is rolling.

11 . The device of claim 1 , wherein said roller is motorized and has a speed of rotation of said roller which is adjustable.

12 . The device of claim 1 , wherein said dry eye treatment device is a head-worn device, wherein said head-worn device comprises a case and a strap to fixate on a head of a subject, wherein said roller is motorized and heated, wherein said roller and said holder are located inside an eye chamber of said head-worn device.

13 . A method for dry eye treatment using the dry eye treatment device according to claim 1 , comprising:

cleaning the eyelid with a first cleansing wipe;

heating the roller to a predetermined temperature;

applying thermally conductive gel between said roller and said eyelid;

rolling said roller over said eyelid in a plurality of directions; and

removing said thermally conductive gel and expressed debris with a second cleansing wipe.

14 . The method of claim 13 , further comprising increasing said predetermined temperature by an increment, and repeating said method for dry eye treatment.

15 . The device of claim 1 , wherein said thermally insulating element is a contact lens.

16 . The device of claim 1 , wherein said thermally insulating element is a scleral lens.

17 . A dry eye treatment device, comprising:

a roller, wherein said roller is connected to a holder, wherein said roller is adapted to contact and roll over an eyelid in a plurality of directions in a treatment, wherein said plurality of directions include a direction along a margin of said eyelid and a direction perpendicular to said margin of said eyelid;

a heating element to generate heat, wherein said heating element is inside said roller, wherein at least a portion of said heat is transferred from said heating element to said roller, wherein at least a portion of said heating element is thermally conductive and electrically insulating;

a temperature monitoring system, wherein said temperature monitoring system is outside said roller, wherein said temperature monitoring system comprises a thermal sensor and a temperature control circuit;

an electric power source to electrically heat said heating element.; and

further comprising

a thermally insulating element adapted to be placed in between a palpebral conjunctiva and a cornea to limit heating to said eyelid.

18 . The device of claim 17 , wherein said heating element is a roller surface of said roller heated by eddy currents of induction heating.

19 . A dry eye treatment device, comprising:

a robotic arm, wherein said robotic arm comprises an end effector, wherein said end effector is a member selected from the group consisting of a spinning pinhead, a vibrating pinhead, and a heating plate, wherein said end effector moves in a plurality of directions to adapt to an eyelid in a treatment, wherein said plurality of directions include a direction along a margin of said eyelid and a direction perpendicular to said margin of said eyelid;

a computer to control a motion of said robotic arm;

a heating element to generate heat, wherein said heating element is outside said end effector, wherein at least a portion of said heat is transferred from said heating element to said end effector by a heat transfer element with thermal conduction, wherein at least a portion of said heat transfer element is thermally conductive and electrically insulating;

a temperature monitoring system, wherein said temperature monitoring system comprises a thermal sensor and a temperature control circuit;

an electric power source to electrically heat said heating element.; and

further comprising

a thermally insulating element adapted to be placed in between a palpebral conjunctiva and a cornea to limit heating to said eyelid.

20 . The device of claim 19 , wherein said robotic arm and said computer are trained with machine learning.

Continuity (2)
Provisional Application 63066312 · Aug 16, 2020
Related Publication 20220047449A1 · Feb 17, 2022
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