US 12,472,376 B2
Devices and methods for stimulating tear secretion
Ronen Shavit, Tel Aviv-Jaffa (IL)
Assigned to Demaod LTD, Tel Aviv Yafo (IL)
Filed by Demaod LTD, Tel Aviv-Jaffa (IL)
Filed on Jan. 26, 2023, as Appl. No. 18/159,978.
Claims priority of application No. 290389 (IL), filed on Feb. 6, 2022; and application No. 294455 (IL), filed on Jun. 30, 2022.
Prior Publication US 2023/0248994 A1, Aug. 10, 2023
Int. Cl. A61N 5/06 (2006.01); A61H 23/02 (2006.01)
CPC A61N 5/0622 (2013.01) [A61H 23/02 (2013.01); A61H 2201/10 (2013.01); A61H 2201/1604 (2013.01); A61H 2201/165 (2013.01); A61H 2201/5048 (2013.01); A61H 2201/5092 (2013.01); A61H 2205/022 (2013.01); A61N 2005/0626 (2013.01); A61N 2005/0648 (2013.01); A61N 2005/0661 (2013.01); A61N 2005/0663 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A device for stimulating the lacrimal gland and optionally the meibomian gland of an eye of a user by emitting light on the retina, said device comprising:
a control unit;
an optical system connected to said control unit and arranged in the viewing direction of the user, said optical system includes at least one light source, and is configured for providing light stimulation pulses to an eye of the user by said at least one light source; and
a power supply unit for supplying power to said control unit and/or optical system;
wherein said light stimulation pulses activate the pupillary light reflex and one or more reflexes selected from:
blink reflex;
corneal reflex;
menace reflex; and
lacrimal reflex,
wherein when said device is in operation mode a light intensity gradient between the light pulses emitted by said at least one light source and light around the eye is maintained at least 2 lumens, and wherein said light stimulation pulses induce blinking of the eye of said user.