METHODS AND DEVICE FOR INCREASING OXYGEN CONCENTRATION FOR IMPROVED OPHTHALMIC DEVICES Russian patent published in 2018 - IPC G02C7/00 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine. Contact lens contains: hydrogel skirt, wherein the hydrogel skirt is cast in the form of a contact lens and comprises an arcuate rear surface, located near the cornea of the user during use of the contact lens; an insert, the insert comprising one or more components mounted thereon, wherein the insert is gas-tight and impermeable to flow through its housing; the first region of the hydrogel skirt, wherein the first region of the hydrogel skirt is that portion of the hydrogel skirt that is between the insert surface and the cornea of the user during use of the contact lens; and means in a contact lens for increasing oxygen levels in a fluid in contact with the first region, said means comprising at least one cut-through pore, continuing through the insert and positioned so as to be in fluid contact with the first region. Insert contains a two-chamber structure with dividers that determine the height of each chamber in a two-chamber structure. Separating elements are 20 mcm or less. Insert is sealed inside the hydrogel skirt. Method for increasing oxygen levels on a user's cornea, when a user wears a contact lens, according to which: which passes through the insert of the contact lens, by means of a laser radiation source, the pore having a diameter between 10 and 20 mcm, to be in fluid contact with the region between the insert surface and the cornea of the wearer during the use of the lens; fill the pore with a silicone-containing polymer and obtain a contact lens, comprising an insert for contact lenses in which, during the use of the contact lens, oxygen diffuses through the pore with the silicone-containing polymer into the region of the tear fluid under the contact lens.

EFFECT: application of these inventions will increase the transfer of oxygen into the region close to the surface of the eye.

28 cl, 5 dwg