Patents by Inventor Douglas Brent Wensrich

Douglas Brent Wensrich 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).

  • Patent number: 11116627
    Abstract: Intraocular lens injectors described herein may include a symmetrical arranged storage compartment, nozzle passage, and plunger tip in order to symmetrically fold and provide symmetrical loading to an intraocular lens during advancement and delivery so as to avoid rotation of the intraocular lens about longitudinal, vertical, and/or lateral axes during advancement and/or delivery of the intraocular lens.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: September 14, 2021
    Inventors: Yinghui Wu, Douglas Brent Wensrich, Len Takudzwa Magara
  • Patent number: 11065108
    Abstract: An ophthalmic device includes an optic including an optic axis and a closed-loop haptic structure coupled to the optic via a frame surrounding the optic, the closed-loop haptic structure including a closed loop extending from first and second attachment points to the frame. The closed loop includes a first hinge and a second hinge. The first hinge has a first section having a first component extending in a first angular direction, a second section having a second component extending in a second angular direction opposite to the first angular direction, and a first connecting section between the first section and the second section. The second hinge has a third section having a third component extending in the second angular direction, a fourth section having a fourth component extending in the first angular direction, the fourth section being connected to the second section to form the closed loop.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 20, 2021
    Assignee: Alcon Inc.
    Inventors: Sung Kyu Lee, Stephen John Collins, Ian Michael Marks, Jonathan David McCann, Jian Liu, Douglas Brent Wensrich, Stephen J. Van Noy
  • Patent number: 11000367
    Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and one or more rails may be formed on the interior surface so as to displace an optic of an intraocular lens (IOL) being advanced through the passage towards a portion of the interior surface disposed opposite the one or more rails.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: May 11, 2021
    Inventors: Yinghui Wu, Kyle Brown, Tu Cam Tran, Douglas Brent Wensrich, Todd Taber, Jyoti Bhatia
  • Publication number: 20210121286
    Abstract: An ophthalmic device includes an optic including an optic axis and a periphery and a closed-loop ring haptic structure coupled with the optic. The closed loop haptic structure includes a first ring structure having a first characteristic length, a second ring structure having a second characteristic length, and a plurality of connectors coupling the first ring structure and the second ring structure. The first ring structure is positioned adjacent to the periphery of the optic and is coupled to the entire periphery of the optic, and the first characteristic length is less than the second characteristic length.
    Type: Application
    Filed: January 5, 2021
    Publication date: April 29, 2021
    Inventors: Stephen John Collins, Jian Liu, Michael Lee Mangum, Douglas Brent Wensrich
  • Publication number: 20210052374
    Abstract: Systems, methods, and apparatuses for storing and/or shipping an intraocular lens (IOL) cartridge are provided. A system comprises a packaging comprising a passage. The IOL cartridge is removably disposed within the passage. The IOL cartridge comprises a nozzle and a compartment configured to receive an IOL. The nozzle is in fluid communication with the compartment. The IOL cartridge further comprises a dial configured to rotate upon withdrawal of the IOL cartridge from the passage, wherein an inner surface of the dial is exposed to the compartment. The dial is configured to fold the IOL and release the IOL cartridge from the packaging upon rotation of the dial.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Trevor Haney, Andrew Check, Justin Benaquisto, Joe Marietta, Jonathan Penrod, Tim LaRoy, Bryce Porter
  • Publication number: 20210052372
    Abstract: Systems, methods, and apparatuses for removably attaching a drive mechanism handpiece to an intraocular lens (IOL) cartridge that folds the IOL upon removal of a cap, are provided. The IOL cartridge comprises a nozzle and a housing comprising a slide. A compartment configured to receive an IOL is disposed within the housing. An interior portion of the slide is exposed to the compartment. The nozzle is in fluid communication with the compartment. The cap covers the nozzle and the slide. The cap is configured to expose the nozzle and advance the slide to fold the IOL upon removal of the cap.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Sam Jang, Chris Pinkham
  • Publication number: 20210052371
    Abstract: Systems, methods, and apparatuses for removably attaching a drive mechanism handpiece to an intraocular lens (IOL) cartridge that folds the IOL upon retraction of a cap, are provided. The IOL cartridge comprises a nozzle and a compartment configured to receive an IOL. The nozzle is in fluid communication with the compartment. The IOL cartridge also includes a retractable cap that covers the nozzle and the compartment. The retractable cap is configured to expose the nozzle and fold the IOL upon retraction of the retractable cap. The IOL cartridge may also include a plunger case that is in fluid communication with the compartment, wherein a plunger is movably disposed within the plunger case.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Sam Jang, Chris Pinkham
  • Publication number: 20210052373
    Abstract: Systems, methods, and apparatuses for storing and/or shipping an intraocular lens (IOL) cartridge are provided. A system comprises the IOL cartridge. The IOL cartridge comprises a nozzle and a compartment comprising an IOL. The nozzle is in fluid communication with the compartment. The IOL cartridge further comprises a dial disposed adjacent to the compartment, wherein an inner surface of the dial is exposed to the compartment. The dial is configured to fold the IOL upon rotation of the dial. The IOL cartridge further comprises a plunger case in fluid communication with the compartment, wherein a plunger is movably disposed within the plunger case. The IOL cartridge is configured to removably attach to a handpiece.
    Type: Application
    Filed: August 21, 2020
    Publication date: February 25, 2021
    Inventors: Sudarshan B. Singh, Todd Taber, Douglas Brent Wensrich, Yinghui Wu, Trevor Haney, Andrew Check, Justin Benacquisto, Joe Marietta, Jonathan Penrod, Tim LaRoy, Bryce Porter
  • Publication number: 20210038372
    Abstract: Systems, methods, and devices for inserting an intraocular lens (IOL) assembly into an eye may be provided. An apparatus for delivery of a lens component into an eye, including: a nozzle; a housing, wherein the nozzle is operatively coupled to the housing; a first lever; a second lever; and a linkage assembly. The linkage assembly may be disposed within the housing between and adjacent to the first and second levers. The linkage assembly may include a plurality of linkages pivotably coupled to each other, wherein the linkage assembly is collapsible.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 11, 2021
    Inventors: Victoria Holderby, Douglas Brent Wensrich
  • Patent number: 10905544
    Abstract: An ophthalmic device includes an optic including an optic axis and a periphery and a closed-loop ring haptic structure coupled with the optic. The closed loop haptic structure includes a first ring structure having a first characteristic length, a second ring structure having a second characteristic length, and a plurality of connectors coupling the first ring structure and the second ring structure. The first ring structure is positioned adjacent to the periphery of the optic and is coupled to the entire periphery of the optic, and the first characteristic length is less than the second characteristic length.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: February 2, 2021
    Assignee: Alcon Inc.
    Inventors: Stephen John Collins, Jian Liu, Michael Lee Mangum, Douglas Brent Wensrich
  • Publication number: 20200197167
    Abstract: An IOL injector having a collapsible mechanism and/or a lever-driven rack and pinion is described.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 25, 2020
    Inventors: Douglas Brent Wensrich, Len Takudzwa Magara, Jian Liu, Anubhav Chauhan
  • Publication number: 20200197168
    Abstract: An intraocular lens (IOL) folding device is described.
    Type: Application
    Filed: June 27, 2019
    Publication date: June 25, 2020
    Inventors: Yinghui Wu, Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara
  • Publication number: 20200197162
    Abstract: Systems, methods, and devices, for delivery of a lens portion of a modular intraocular lens into an eye, may be provided. A device may include a housing; a nozzle positioned at an end of the housing, wherein an interior of the nozzle comprises a floor, the floor including an aperture; and a cam-actuated mechanism positioned within the housing, comprising: a lens stop comprising a base and a post, wherein the post is movably disposed within the aperture; and a slider configured to move in a direction toward the lens stop, wherein the lens stop is positioned at a distal end of the slider, the slider comprising a slot that is aligned with a portion of the base of the lens stop and configured to receive the portion of the base as the slider moves.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 25, 2020
    Inventors: Yinghui Wu, Len Takudzwa Magara, Douglas Brent Wensrich
  • Publication number: 20200197160
    Abstract: Systems, methods, and devices for inserting an intraocular lens (IOL) assembly into an eye may be provided. A device for delivery of the IOL into the eye may include a nozzle; a bay adjacent to the nozzle, wherein the bay is configured to contain the lens component and comprises a recess in a shape of a haptic extension; and a cam-actuated mechanism comprising a slider configured to move in a direction toward the nozzle; a side arm moveably disposed within the bay, wherein the side arm is positioned at an end of the slider, the end of the slider comprising a groove aligned with the side arm, wherein the groove extends from an outer edge of the slider into an interior portion of the slider, wherein the groove is angled to receive the side arm as the slider moves.
    Type: Application
    Filed: August 6, 2019
    Publication date: June 25, 2020
    Inventors: Len Takudzwa Magara, Douglas Brent Wensrich, Yinghui Wu, Rudolph F. Zacher, Todd Taber
  • Publication number: 20200197166
    Abstract: Systems, methods, and devices for inserting an intraocular lens (IOL) assembly into an eye may be provided. A device for delivery of the IOL into the eye may include a housing; a nozzle operatively coupled to the housing; a first cylinder movably disposed within the housing; a second cylinder movably disposed within the housing, wherein the second cylinder is in fluid communication with the first cylinder; a plunger at least partially and movably disposed within the first cylinder; and a shaft movably disposed within the second cylinder, wherein the shaft is configured to move toward the lens component.
    Type: Application
    Filed: December 12, 2019
    Publication date: June 25, 2020
    Inventors: Yinghui Wu, Len Takudzwa Magara, Sudarshan B. Singh, Douglas Brent Wensrich, Todd Taber
  • Publication number: 20200015956
    Abstract: Intraocular lens injectors described herein may include a symmetrical arranged storage compartment, nozzle passage, and plunger tip in order to symmetrically fold and provide symmetrical loading to an intraocular lens during advancement and delivery so as to avoid rotation of the intraocular lens about longitudinal, vertical, and/or lateral axes during advancement and/or delivery of the intraocular lens.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Yinghui Wu, Douglas Brent Wensrich, Len Takudzwa Magara
  • Publication number: 20200015957
    Abstract: IOL injectors and associated methods are described. An IOL injector may include a collapsible portion configured to reduce the length of the IOL injector when the collapsible portion is altered from an uncollapsed configuration to a collapsed configuration. In some instances, an IOL may be advanced from a storage location to a dwell location when the collapsible portion is altered from the uncollapsed configuration to the collapsed configuration. An IOL injector may include one or more of a hydraulic damper and a ribbed damper.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventor: Douglas Brent Wensrich
  • Publication number: 20200015959
    Abstract: An intraocular lens (IOL) injectors and associated methods are described. The IOL injectors may include a collapsible portion configured to reduce the length of the IOL injector when the collapsible portion is altered from an uncollapsed configuration to a collapsed configuration. In some instances, an IOL may be advanced from a storage location to a dwell location when the collapsible portion is altered from the uncollapsed configuration to the collapsed configuration. The IOL injectors may also include a combination push and screw drive.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara, Jian Liu
  • Publication number: 20190125522
    Abstract: An ophthalmic device includes an optic including an optic axis and a closed-loop haptic structure coupled to the optic via a frame surrounding the optic, the closed-loop haptic structure including a closed loop extending from first and second attachment points to the frame. The closed loop includes a first hinge and a second hinge. The first hinge has a first section having a first component extending in a first angular direction, a second section having a second component extending in a second angular direction opposite to the first angular direction, and a first connecting section between the first section and the second section. The second hinge has a third section having a third component extending in the second angular direction, a fourth section having a fourth component extending in the first angular direction, the fourth section being connected to the second section to form the closed loop.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 2, 2019
    Inventors: SUNG KYU LEE, STEPHEN JOHN COLLINS, IAN MICHAEL MARKS, JONATHAN DAVID MCCANN, JIAN LIU, DOUGLAS BRENT WENSRICH, STEPHEN J. VAN NOY
  • Publication number: 20190091010
    Abstract: An ophthalmic device includes an optic including an optic axis and a periphery and a closed-loop ring haptic structure coupled with the optic. The closed loop haptic structure includes a first ring structure having a first characteristic length, a second ring structure having a second characteristic length, and a plurality of connectors coupling the first ring structure and the second ring structure. The first ring structure is positioned adjacent to the periphery of the optic and is coupled to the entire periphery of the optic, and the first characteristic length is less than the second characteristic length.
    Type: Application
    Filed: September 27, 2018
    Publication date: March 28, 2019
    Inventors: Stephen John Collins, Jian Liu, Michael Lee Mangum, Douglas Brent Wensrich