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).

  • Publication number: 20240335277
    Abstract: 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: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Applicant: WUXI VISION PRO LTD.
    Inventors: Shasha LI, Xiugao LIAO, Zhenyu FENG
  • Publication number: 20240335278
    Abstract: 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: Application
    Filed: June 18, 2024
    Publication date: October 10, 2024
    Applicant: WUXI VISION PRO LTD.
    Inventors: Shasha LI, Xiugao LIAO, Zhenyu FENG
  • Patent number: 10663763
    Abstract: 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: Grant
    Filed: July 30, 2018
    Date of Patent: May 26, 2020
    Assignee: VISION PRO (WUXI) LTD
    Inventors: Xiugao Liao, Zhenyu Feng, Jinghui Cao, Qin Yang
  • Publication number: 20190004334
    Abstract: 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: Application
    Filed: July 30, 2018
    Publication date: January 3, 2019
    Applicant: VISION PRO (WUXI) LTD
    Inventors: Xiugao LIAO, Zhenyu FENG, Jinghui CAO, Qin YANG
  • Publication number: 20180344452
    Abstract: 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: Application
    Filed: July 30, 2018
    Publication date: December 6, 2018
    Applicant: VISION PRO (WUXI) LTD
    Inventors: Xiugao LIAO, Zhenyu FENG, Qin YANG
  • Publication number: 20160143727
    Abstract: 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: Application
    Filed: June 9, 2014
    Publication date: May 26, 2016
    Inventor: Xiugao Liao
  • Patent number: 8680172
    Abstract: 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: Grant
    Filed: April 23, 2013
    Date of Patent: March 25, 2014
    Assignee: Visiogen, Inc.
    Inventor: Xiugao Liao
  • Publication number: 20130245756
    Abstract: 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: Application
    Filed: April 23, 2013
    Publication date: September 19, 2013
    Inventor: Xiugao Liao
  • Patent number: 8430928
    Abstract: 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: Grant
    Filed: June 6, 2012
    Date of Patent: April 30, 2013
    Assignee: Visiogen, Inc.
    Inventor: Xiugao Liao
  • Publication number: 20120245684
    Abstract: 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: Application
    Filed: June 6, 2012
    Publication date: September 27, 2012
    Applicant: Visiogen, Inc.
    Inventor: Xiugao Liao
  • Patent number: 8222360
    Abstract: 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: Grant
    Filed: October 6, 2009
    Date of Patent: July 17, 2012
    Assignee: Visiogen, Inc.
    Inventor: Xiugao Liao
  • Publication number: 20100211170
    Abstract: 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: Application
    Filed: October 6, 2009
    Publication date: August 19, 2010
    Applicant: VISIOGEN, INC.
    Inventor: Xiugao Liao
  • Patent number: 7407992
    Abstract: 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: Grant
    Filed: June 30, 2006
    Date of Patent: August 5, 2008
    Assignee: STAAR Surgical Company
    Inventor: Xiugao Liao
  • Publication number: 20060252902
    Abstract: 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: Application
    Filed: June 30, 2006
    Publication date: November 9, 2006
    Inventor: Xiugao Liao
  • Patent number: 7071244
    Abstract: 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: Grant
    Filed: December 3, 2002
    Date of Patent: July 4, 2006
    Assignee: STAAR Surgical Company
    Inventor: Xiugao Liao
  • Patent number: 7071279
    Abstract: 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: Grant
    Filed: April 16, 2004
    Date of Patent: July 4, 2006
    Assignee: STAAR Surgical Company
    Inventor: Xiugao Liao
  • Publication number: 20050021140
    Abstract: 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: Application
    Filed: August 13, 2004
    Publication date: January 27, 2005
    Inventor: Xiugao Liao
  • Publication number: 20040198865
    Abstract: 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: Application
    Filed: April 16, 2004
    Publication date: October 7, 2004
    Inventor: Xiugao Liao
  • Patent number: 6780899
    Abstract: 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: Grant
    Filed: October 24, 2002
    Date of Patent: August 24, 2004
    Assignee: Medennium, Inc.
    Inventors: Xiugao Liao, Vijay Gulati
  • Patent number: RE38935
    Abstract: 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: Grant
    Filed: June 4, 2002
    Date of Patent: January 10, 2006
    Assignee: Advanced Medical Optics, Inc.
    Inventors: Harish C. Makker, Xiugao Liao, Joseph I. Weinschenk, III