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).

  • Publication number: 20240148494
    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: January 18, 2024
    Publication date: May 9, 2024
    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
  • Patent number: 11957570
    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: June 18, 2021
    Date of Patent: April 16, 2024
    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: 11931247
    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: Grant
    Filed: August 21, 2020
    Date of Patent: March 19, 2024
    Assignee: Alcon Inc.
    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
  • Patent number: 11911263
    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: Grant
    Filed: August 21, 2020
    Date of Patent: February 27, 2024
    Assignee: Alcon Inc.
    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: 20240033074
    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: October 12, 2023
    Publication date: February 1, 2024
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Sam Jang, Chris Pinkham
  • Patent number: 11833032
    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: Grant
    Filed: August 21, 2020
    Date of Patent: December 5, 2023
    Assignee: Alcon Inc.
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Sam Jang, Chris Pinkham
  • Publication number: 20230240837
    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: April 4, 2023
    Publication date: August 3, 2023
    Inventors: Sudarshan B. SINGH, Todd TABER, Yinghui WU, Douglas Brent WENSRICH, Sam JANG, Chris PINKHAM
  • Publication number: 20230218388
    Abstract: An intraocular lens (IOL) folding device is described.
    Type: Application
    Filed: March 14, 2023
    Publication date: July 13, 2023
    Inventors: Yinghui WU, Douglas Brent WENSRICH, Todd TABER, Len Takudzwa MAGARA
  • Publication number: 20230149155
    Abstract: An apparatus for eye surgery may comprise a nozzle having a delivery lumen, an implant bay coupled to the nozzle, an implant disposed in the implant bay, and an actuator coupled to the implant bay. The actuator may comprise a housing; a bore through the housing; a plunger disposed within the bore; and a compression ring. The plunger can be configured to advance within the bore, thereby advancing the implant from the implant bay through the delivery lumen, and the bore can be configured to compress the compression ring as the plunger moves through the bore. In some embodiments, the bore can be configured to increase compression on the compression ring as the first end of the plunger moves through the bore.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 18, 2023
    Inventors: Harlen Hoang, Yinghui Hu, R. Mitchell Sherry, Douglas Brent Wensrich, Tuoqi Li
  • Patent number: 11642219
    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: Grant
    Filed: August 21, 2020
    Date of Patent: May 9, 2023
    Assignee: Alcon Inc.
    Inventors: Sudarshan B. Singh, Todd Taber, Yinghui Wu, Douglas Brent Wensrich, Sam Jang, Chris Pinkham
  • Patent number: 11633276
    Abstract: An intraocular lens (IOL) folding device is described.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: April 25, 2023
    Assignee: Alcon Inc.
    Inventors: Yinghui Wu, Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara
  • Publication number: 20220370196
    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: August 8, 2022
    Publication date: November 24, 2022
    Inventors: Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara, Jian Liu
  • Patent number: 11439499
    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: Grant
    Filed: July 10, 2019
    Date of Patent: September 13, 2022
    Assignee: Alcon Inc.
    Inventors: Douglas Brent Wensrich, Todd Taber, Len Takudzwa Magara, Jian Liu
  • Patent number: 11413137
    Abstract: An IOL injector having a collapsible mechanism and/or a lever-driven rack and pinion is described.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: August 16, 2022
    Assignee: Alcon Inc.
    Inventors: Douglas Brent Wensrich, Len Takudzwa Magara, Jian Liu, Anubhav Chauhan
  • Patent number: 11357621
    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: Grant
    Filed: July 28, 2020
    Date of Patent: June 14, 2022
    Assignee: Alcon Inc.
    Inventors: Victoria Holderby, Douglas Brent Wensrich
  • Patent number: 11344406
    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: Grant
    Filed: December 12, 2019
    Date of Patent: May 31, 2022
    Assignee: Alcon Inc.
    Inventors: Yinghui Wu, Len Takudzwa Magara, Douglas Brent Wensrich
  • Patent number: 11337797
    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: Grant
    Filed: August 6, 2019
    Date of Patent: May 24, 2022
    Assignee: Alcon Inc.
    Inventors: Len Takudzwa Magara, Douglas Brent Wensrich, Yinghui Wu, Rudolph F. Zacher, Todd Taber
  • Patent number: 11324589
    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: Grant
    Filed: July 10, 2019
    Date of Patent: May 10, 2022
    Assignee: Alcon Inc.
    Inventor: Douglas Brent Wensrich
  • Patent number: 11324590
    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: Grant
    Filed: December 12, 2019
    Date of Patent: May 10, 2022
    Assignee: Alcon Inc.
    Inventors: Yinghui Wu, Len Takudzwa Magara, Sudarshan B. Singh, Douglas Brent Wensrich, Todd Taber
  • Publication number: 20210307896
    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: June 18, 2021
    Publication date: October 7, 2021
    Inventors: SUNG KYU LEE, STEPHEN JOHN COLLINS, IAN MICHAEL MARKS, JONATHAN DAVID MCCANN, JIAN LIU, DOUGLAS BRENT WENSRICH, STEPHEN J. VAN NOY