# US 11,298,221 B2 · Three-lens intraocular lens system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,221 B2 - Document ID: US11298221B2 - Status: Granted - Kind: B2 - Application number: 16/716,111 - Filed: 2019-12-16 - Published: 2020-06-25 - Granted: 2022-04-12 - Earliest claimed: 2018-12-20 - Assignees: Alcon Inc. - Applicants: Alcon Inc. - Inventors: Philip Matthew McCulloch - Web page: https://patentgrep.com/patent/US11298221B2 ## CPC - A61F 2/1651: {Multipart lenses comprising a telescope} - A61F 2/1629: {for changing longitudinal position, i.e. along the visual axis when implanted} - A61F 2002/1682: {having mechanical force transfer mechanism to the lens, e.g. for accommodating lenses} - A61F 2002/16901: {Supporting structure conforms to shape of capsular bag} - 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) ## Abstract The present disclosure provides a three-lens IOL system including a first, anterior lens, a second, posterior lens rigidly connected to the first lens by at least one rigid member such that the second lens is a fixed distance from the first lens along an axis, a third, center, moveable lens positioned between the first lens and the second lens and adapted to move linearly along the axis anteriorly in a direction of the first lens or posteriorly in a direction of the second lens to change an optical power of the system, and an articulating actuator that contacts the moveable lens and a capsular bag of an eye when the IOL system is implanted in the capsular bag, the articulating actuator adapted to move the moveable lens linearly along the axis. ## Claims ### Claim 1 A three-lens intraocular lens (IOL) system comprising: a first, anterior lens; a second, posterior lens rigidly connected to the first lens by at least one rigid member such that the second lens is a fixed distance, d from the first lens along an axis; a third, center, moveable lens positioned between the first lens and the second lens and adapted to move linearly along the axis anteriorly in a direction of the first lens or posteriorly in a direction of the second lens to change an optical power of the system; and an articulating actuator that contacts the moveable lens and a capsular bag of an eye when the IOL system is implanted in the capsular bag, the articulating actuator adapted to move the moveable lens linearly along the axis, the articulating actuator comprising: a lever point; a first arm located between the lever point and the moveable lens and adapted to contact the moveable lens; a contact adapted to contact an interior surface of the capsular bag when the IOL system is implanted in the eye; and a second arm located between the contact and the lever point; wherein the first and second arms form an angle θ; and wherein the articulating actuator is adapted such that the first arm pivots around the lever point to form a more obtuse angle with the second arm when the capsular bag relaxes and to move the moveable lens anteriorly towards the first lens as a result. ### Claim 2 (depends on 1) The IOL system of claim 1, wherein: the first lens has a positive focal length; the second lens has a negative focal length; and the moveable lens has a positive focal length. ### Claim 3 (depends on 2) The IOL system of claim 2, wherein the first lens has a first focal length, the second lens has a second focal length, and the moveable lens has a third focal length; wherein the optical power of the system is a function of the first focal length, the second focal length, and the third focal length; a nominal system optical power; and a nominal distance t1 between a center of the moveable lens and the first lens along the axis. ### Claim 4 (depends on 3) The IOL system of claim 3, wherein the first focal length is between 18 mm and 28 mm, inclusive, the second focal length is between −4.5 mm and −8.5 mm, inclusive, and the third focal length is between 5 mm and 15 mm, inclusive. ### Claim 5 (depends on 1) The IOL system of claim 1, wherein the distance d is between 3.00 mm and 6.00 mm, inclusive. ### Claim 6 (depends on 1) The IOL system of claim 1, wherein the optical power of the IOL system has a range of between 6 diopters and 34 diopters, inclusive. ### Claim 7 (depends on 1) The IOL system of claim 1, wherein a distance t1 between the center of the moveable lens and the first lens along the axis changes by between 0.1 mm and 0.3 mm, inclusive, in response to a movement of the articulating actuator. ### Claim 8 (depends on 1) The IOL system of claim 1, wherein the articulating actuator is adapted to move the moveable lens posteriorly toward the second lens when the capsular bag contracts. ### Claim 9 A three-lens intraocular lens (IOL) system, comprising: a first, anterior lens; a second, posterior lens rigidly connected to the first lens by at least one rigid member such that the second lens is a fixed distance, d from the first lens along an axis; a third, center, moveable lens positioned between the first lens and the second lens and adapted to move linearly along the axis anteriorly in a direction of the first lens or posteriorly in a direction of the second lens to change an optical power of the system; and an articulating actuator that contacts the moveable lens and a capsular bag of an eye when the IOL system is implanted in the capsular bag, the articulating actuator adapted to move the moveable lens linearly along the axis; wherein a distance t1 between the center of the moveable lens and the first lens along the axis changes by between 0.1 mm and 0.3 mm, inclusive, in response to a movement of the articulating actuator. ### Claim 10 (depends on 9) The IOL system of claim 9, wherein: the first lens has a positive focal length; the second lens has a negative focal length; and the moveable lens has a positive focal length. ### Claim 11 (depends on 9) The IOL system of claim 9, wherein the distance d is between 3.00 mm and 6.00 mm, inclusive. ### Claim 12 (depends on 9) The IOL system of claim 9, wherein the optical power of the IOL system has a range of between 6 diopters and 34 diopters, inclusive. ### Claim 13 (depends on 9) The IOL system of claim 9, wherein the articulating actuator comprises: a lever point; a first arm located between the lever point and the moveable lens and adapted to contact the moveable lens; a contact adapted to contact an interior surface of the capsular bag when the IOL system is implanted in the eye; a second arm located between the contact and the lever point, wherein the first and second arm form an angle θ. ### Claim 14 A three-lens intraocular lens (IOL) system, comprising: a first, anterior lens; a second, posterior lens rigidly connected to the first lens by at least one rigid member such that the second lens is a fixed distance, d from the first lens along an axis; a third, center, moveable lens positioned between the first lens and the second lens and adapted to move linearly along the axis anteriorly in a direction of the first lens or posteriorly in a direction of the second lens to change an optical power of the system; and an articulating actuator that contacts the moveable lens and a capsular bag of an eye when the IOL system is implanted in the capsular bag, the articulating actuator adapted to move the moveable lens linearly along the axis, the articulating actuator comprising: a lever point; a first arm located between the lever point and the moveable lens and adapted to contact the moveable lens; a contact adapted to contact an interior surface of the capsular bag when the IOL system is implanted in the eye; and a second arm located between the contact and the lever point; wherein the first and second arm form an angle θ; and wherein the articulating actuator is adapted such that the first arm pivots around the lever point to form a more acute angle with the second arm when the capsular bag tightens and to move the moveable lens posteriorly towards the second lens as a result. ### Claim 15 (depends on 14) The IOL system of claim 14, wherein the articulating actuator is further adapted such that the first arm pivots around the lever to form a more obtuse angle with the second arm when the capsular bag relaxes and to move the moveable lens anteriorly towards the first lens as a result. ### Claim 16 (depends on 14) The IOL system of claim 14, wherein the distance d is between 3.00 mm and 6.00 mm, inclusive.