Patents by Inventor Xiugao Liao
Xiugao Liao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240335277Abstract: A full-visual range intraocular lens includes an optical body, a first supporting loop and a second supporting loop, where the optical body, the first supporting loop and the second supporting loop are of integral structure and are integrally formed from the same material, and the optical body is positioned between the first supporting loop and the second supporting loop; the optical body includes two optical surfaces, which being spherical or aspherical, and one of the optical surfaces has a diffraction structure for modulating incident optical-field distribution. The full-visual range intraocular lens adjusts the incident optical-field distribution by means of a diffraction structure, reducing sharp points on the whole optical surface, effectively reducing glare, reducing chromatic aberration, and enabling to see more clearly on the visual range between focal points, so as to bring better visual experience to patients.Type: ApplicationFiled: June 18, 2024Publication date: October 10, 2024Applicant: WUXI VISION PRO LTD.Inventors: Shasha LI, Xiugao LIAO, Zhenyu FENG
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Publication number: 20240335278Abstract: An expanded focal depth type implantable contact lens and a preparation method thereof are provided. The expanded focal depth type implantable contact lens includes an optical body, a first supporting loop and a second supporting loop, where the optical body, the first supporting loop and the second supporting loop are of an integrated structure, are made of the same material and are integrally formed, and the optical body is located between the first supporting loop and the second supporting loop; and the optical body is composed of two optical surfaces, one optical surface is a plane, and the other optical surface is a free-form surface with a focal depth expanding function. In the expanded focal depth type implantable contact lens, a focal depth expansion technology is applied to a lens intraocular lens; a focal depth is expanded; and certain adjusting capacity is provided while myopia is corrected.Type: ApplicationFiled: June 18, 2024Publication date: October 10, 2024Applicant: WUXI VISION PRO LTD.Inventors: Shasha LI, Xiugao LIAO, Zhenyu FENG
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Patent number: 10663763Abstract: The present invention is a multifocal intraocular lens including an optical body, a first support loop and a second support loop, wherein, the optical body is composed of a substrate layer and a coating layer; the substrate layer, the first support loop and the second support loop have a one-piece structure and are formed integrally with the same material; the coating layer is cemented on the substrate layer by means of injection-compression molding; the substrate layer and the coating layer are made of different materials. The optical body of the present invention is a multifocal optical zone with a double-cemented structure. The optical zone includes a plurality of binary surfaces and an aspheric surface, effectively correcting chromatic aberration of the secondary spectrum, improving image quality, expanding the range of additional optical power, and achieving a full range of vision.Type: GrantFiled: July 30, 2018Date of Patent: May 26, 2020Assignee: VISION PRO (WUXI) LTDInventors: Xiugao Liao, Zhenyu Feng, Jinghui Cao, Qin Yang
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Publication number: 20190004334Abstract: The present invention is a multifocal intraocular lens including an optical body, a first support loop and a second support loop, wherein, the optical body is composed of a substrate layer and a coating layer; the substrate layer, the first support loop and the second support loop have a one-piece structure and are formed integrally with the same material; the coating layer is cemented on the substrate layer by means of injection-compression molding; the substrate layer and the coating layer are made of different materials. The optical body of the present invention is a multifocal optical zone with a double-cemented structure. The optical zone includes a plurality of binary surfaces and an aspheric surface, effectively correcting chromatic aberration of the secondary spectrum, improving image quality, expanding the range of additional optical power, and achieving a full range of vision.Type: ApplicationFiled: July 30, 2018Publication date: January 3, 2019Applicant: VISION PRO (WUXI) LTDInventors: Xiugao LIAO, Zhenyu FENG, Jinghui CAO, Qin YANG
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Publication number: 20180344452Abstract: The present invention is an accommodative multifocal intraocular lens including an optical body, a haptic and a silicone connecting member, wherein the silicone connecting member is located between the optical body and the haptic, and combines the optical body and the haptic in an inserted manner through concave and convex grooves; two ends of the optical body are provided with concave grooves; an end, joined to the optical body, of the haptic is provided with a concave groove; two ends, along the width direction, of the silicone connecting member are provided with convex grooves, respectively, that is, a convex groove and a convex groove, respectively. The optical body in the present invention is a multi-focal optical zone, and the back-and-forth movement of the optical zone can effectively increase the change of the focal power of the multifocal lens.Type: ApplicationFiled: July 30, 2018Publication date: December 6, 2018Applicant: VISION PRO (WUXI) LTDInventors: Xiugao LIAO, Zhenyu FENG, Qin YANG
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Publication number: 20160143727Abstract: The invention discloses an implantable myopia lens, comprising a lens body and a plurality of sheet-shaped support arms, cut and formed along the edge of the lens body. The angle between the plane of the support arms and the plane of the lens body is between 10 and 20 degrees, making the whole of the lens a spheroid. A transparent light guide zone is arranged on the lens body. The lens body and the support arms are all made of a same hydrophilic polyacrylate material. The invention also discloses a preparation method of the implantable myopia lens. The support arms of this invention are bendable, and the bending angle thereof is automatically adjusted according to the contour of a human eye when the lens is implanted therein. The lens of the same model can be implanted into human eyes of different sizes.Type: ApplicationFiled: June 9, 2014Publication date: May 26, 2016Inventor: Xiugao Liao
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Patent number: 8680172Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: GrantFiled: April 23, 2013Date of Patent: March 25, 2014Assignee: Visiogen, Inc.Inventor: Xiugao Liao
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Publication number: 20130245756Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: ApplicationFiled: April 23, 2013Publication date: September 19, 2013Inventor: Xiugao Liao
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Patent number: 8430928Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: GrantFiled: June 6, 2012Date of Patent: April 30, 2013Assignee: Visiogen, Inc.Inventor: Xiugao Liao
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Publication number: 20120245684Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: ApplicationFiled: June 6, 2012Publication date: September 27, 2012Applicant: Visiogen, Inc.Inventor: Xiugao Liao
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Patent number: 8222360Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: GrantFiled: October 6, 2009Date of Patent: July 17, 2012Assignee: Visiogen, Inc.Inventor: Xiugao Liao
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Publication number: 20100211170Abstract: Some embodiments provide a copolymer comprising: an acrylate recurring unit and an optionally substituted vinylaryl recurring unit, wherein a portion of at least one of the recurring units comprises a vinyldialkylsiloxy pendant group. The copolymers may be useful as soft acrylic haptics for intraocular lenses. Some embodiments further relate to intraocular lenses having a hydrophobic soft acrylic optic and a silicone haptic, such as a dual optic accommodative lens a having hydrophobic soft acrylic anterior and posterior optic bodies and a silicone haptic. Related copolymeric composite materials as well as additional embodiments of intraocular lenses, are also described herein.Type: ApplicationFiled: October 6, 2009Publication date: August 19, 2010Applicant: VISIOGEN, INC.Inventor: Xiugao Liao
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Patent number: 7407992Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.Type: GrantFiled: June 30, 2006Date of Patent: August 5, 2008Assignee: STAAR Surgical CompanyInventor: Xiugao Liao
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Publication number: 20060252902Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.Type: ApplicationFiled: June 30, 2006Publication date: November 9, 2006Inventor: Xiugao Liao
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Patent number: 7071244Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.Type: GrantFiled: December 3, 2002Date of Patent: July 4, 2006Assignee: STAAR Surgical CompanyInventor: Xiugao Liao
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Patent number: 7071279Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.Type: GrantFiled: April 16, 2004Date of Patent: July 4, 2006Assignee: STAAR Surgical CompanyInventor: Xiugao Liao
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Publication number: 20050021140Abstract: An accommodating intraocular lens for implantation within the capsular bag of a human eye from which the natural lens matrix has been removed. The intraocular lens includes an optic portion for providing vision corrective power and a pair of haptics having relatively flexible portions and relatively inflexible portions reinforced with a mesh-like material such that additional stiffness is imparted to the haptic material without increasing the thickness of the haptic or changing its shape.Type: ApplicationFiled: August 13, 2004Publication date: January 27, 2005Inventor: Xiugao Liao
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Publication number: 20040198865Abstract: High refractive index and optically clear copoly(carbosilane and siloxane) elastomers and ophthalmic lenses made therefrom are provided. The elastomers are comprised of copolymers having carbosilane repeat units and siloxane repeat units. The copolymers and ophthalmic lenses of the present invention have a high refractive index and excellent folding recoverability.Type: ApplicationFiled: April 16, 2004Publication date: October 7, 2004Inventor: Xiugao Liao
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Patent number: 6780899Abstract: Ocular implants composed of homopolymers containing stable elasticity inducing crosslinkers which contain rigid chemical groups disposed between at least two polymerizable ethyleneically unsaturated chemical groups are disclosed. These ocular implants are stable, elastic, soft, optically clear, have high refractive index and low-tack surfaces.Type: GrantFiled: October 24, 2002Date of Patent: August 24, 2004Assignee: Medennium, Inc.Inventors: Xiugao Liao, Vijay Gulati
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Patent number: RE38935Abstract: Ophthalmic lenses, such as intraocular lenses, include crosslinked polymeric materials having a first constituent derived from a first monomeric component selected from the group consisting of 2-phenylpropyl acrylate or methacrylate and mixtures thereof, and a second constituent derived from a second component in an amount effective as a crosslinker in the crosslinked polymeric material. The crosslinked polymeric material has branched chain alkyl groups, in an amount effective to reduce the tackiness of the crosslinked polymeric material relative to a substantially identical crosslinked polymeric material without branched chain alkyl groups.Type: GrantFiled: June 4, 2002Date of Patent: January 10, 2006Assignee: Advanced Medical Optics, Inc.Inventors: Harish C. Makker, Xiugao Liao, Joseph I. Weinschenk, III