# US 11,896,522 B2 · Active magnetic prosthesis for eye-lid re-animation > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,522 B2 - Document ID: US11896522B2 - Status: Granted - Kind: B2 - Application number: 16/607,143 - Filed: 2018-04-27 - Published: 2020-12-10 - Granted: 2024-02-13 - Earliest claimed: 2017-04-28 - Assignees: The Schepens Eye Research Institute, Inc. - Applicants: The Schepens Eye Research Institute, Inc. - Inventors: Kevin Houston; Eleftherios Paschalis Ilios; Matteo Tomasi - Web page: https://patentgrep.com/patent/US11896522B2 ## CPC - A61F 9/00718: {Restoration of lid function} - A61P 27/02: Ophthalmic agents - A61N 2/006: {for magnetic stimulation of nerve tissue} - A61N 2/02: using magnetic fields produced by coils, including single turn loops or electromagnets (A61N2/12 takes precedence) - A61N 2/06: using magnetic fields produced by permanent magnets (A61N2/12 takes precedence) - G02C 11/00: Non-optical adjuncts; Attachment thereof (G02C7/16 takes precedence) - H01F 7/02: Permanent magnets {[PM]} - A61B 2017/00539: {hydraulically} - A61F 9/00: Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand (caps with means for protecting the eyes A42B1/0181; visors for helmets A42B3/22; eye baths A61H35/02; sunglasses or goggles having the same features as spectacles G02C) - A61F 9/0026: {Ophthalmic product dispenser attachments to facilitate positioning near the eye} - A61F 2210/009: magnetic - G02C 2200/02: Magnetic means - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A device includes a frame, a rotatable housing and a permanent magnet. The frame is configured to be worn adjacent an eye region of a wearer. The rotatable housing is coupled to the frame. The permanent magnet is coupled to the rotatable housing and includes a first surface having a first static magnetic polarity and a second surface having a second static magnetic polarity opposite the first static magnetic polarity. The rotatable housing is arranged to rotate the permanent magnet between a first position orienting the first surface towards the eye region of the wearer and a second position orienting the second surface towards the eye region of the wearer. Related apparatus, systems, techniques and articles are also described. ## Claims ### Claim 1 A device comprising: a frame configured to be worn adjacent an eye region of a wearer; a rotatable housing coupled to the frame; and a permanent magnet coupled to the rotatable housing and including a first surface having a first static magnetic polarity and a second surface having a second static magnetic polarity opposite the first static magnetic polarity, the rotatable housing arranged to rotate the permanent magnet between a first position orienting the first surface towards the eye region of the wearer and a second position orienting the second surface towards the eye region of the wearer. ### Claim 2 (depends on 1) The device of claim 1, wherein the device further includes a servo motor, a stepper motor, a linear motor, a micro-fluidic motor, a hydraulic motor, or a knob. ### Claim 3 (depends on 1) The device of claim 1, further including a micromagnetic array adhered to an eyelid of the wearer and surrounded by an optically clear polymer. ### Claim 4 (depends on 3) The device of claim 3, wherein the optically clear polymer includes a silicon-based organic polymer. ### Claim 5 (depends on 3) The device of claim 3, wherein the optically clear polymer includes polydimethylsiloxane (PDMS). ### Claim 6 (depends on 1) The device of claim 1, wherein the permanent magnet includes a neodymium magnet. ### Claim 7 (depends on 1) The device of claim 1, further comprising a memory controller unit coupled to a motor and including a memory and a controller, the controller configured to access a predetermined rotation schedule protocol included in the memory and to control the rotation of the permanent magnet based on the predetermined rotation schedule protocol. ### Claim 8 (depends on 7) The device of claim 7, wherein the predetermined rotation schedule protocol includes instructions to actuate the motor every 2 seconds, every 3 seconds, every 4 seconds, every 5 seconds, every 6 seconds, every 7 seconds, every 8 seconds, every 9 seconds, every 10 seconds, every 11 seconds, every 12 seconds, every 13 seconds, every 14 seconds, every 15 seconds, every 16 seconds, every 17 seconds, every 18 seconds, every 19 seconds, every 20 seconds, every 10 hours, or every 20 hours. ### Claim 9 (depends on 7) The device of claim 7, further comprising an input coupled to the rotatable housing and configured to control the rotation of the permanent magnet when the input is activated by a user. ### Claim 10 (depends on 9) The device of claim 9, wherein the input is a button, a knob, or a switch. ### Claim 11 A method comprising: providing a frame configured to be worn adjacent an eye region of a wearer, a rotatable housing coupled to the frame, and a permanent magnet coupled to the rotatable housing and including a first surface having a first static magnetic polarity and a second surface having a second static magnetic polarity opposite the first static magnetic polarity, the rotatable housing arranged to rotate the permanent magnet between a first position orienting the first surface towards the eye region of the wearer and a second position orienting the second surface towards the eye region of the wearer; and actuating a micromagnetic array adhered to an eyelid of the wearer by rotating the permanent magnet between the first position and the second position to move the eyelid. ### Claim 12 (depends on 11) The method of claim 11, further providing a servo motor, a stepper motor, a linear motor, a micro-fluidic motor, a hydraulic motor, or a knob. ### Claim 13 (depends on 11) The method of claim 11, wherein the micromagnetic array includes a magnet surrounded by an optically clear polymer. ### Claim 14 (depends on 13) The method of claim 13, wherein the permanent magnet includes a neodymium magnet. ### Claim 15 (depends on 11) The method of claim 11, further comprising providing a memory controller unit coupled to a motor and including a memory and a controller, the controller configured to access a predetermined rotation schedule protocol included in the memory and to control the rotation of the permanent magnet based on the predetermined rotation schedule protocol. ### Claim 16 (depends on 15) The method of claim 15, further comprising providing an input coupled to the rotatable housing and configured to control the rotation of the permanent magnet in response to activation of the input by a user. ### Claim 17 (depends on 15) The method of claim 15, wherein the input is a button, a knob, or a switch. ### Claim 18 (depends on 11) The method of claim 11, wherein the micromagnetic array is adhered to the eyelid of the wearer using a hydrocolloid adhesive provided over a top surface of the micromagnetic array. ### Claim 19 (depends on 11) The method of claim 11, wherein the predetermined rotation schedule protocol includes instructions to actuate the motor every 2 seconds, every 3 seconds, every 4 seconds, every 5 seconds, every 6 seconds, every 7 seconds, every 8 seconds, every 9 seconds, every 10 seconds, every 11 seconds, every 12 seconds, every 13 seconds, every 14 seconds, every 15 seconds, every 16 seconds, every 17 seconds, every 18 seconds, every 19 seconds, every 20 seconds, every 10 hours, or every 20 hours.