Patents by Inventor Fernando Erismann

Fernando Erismann 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: 12635999
    Abstract: In an example, a surgical retractor includes an elongated shaft extending from a first end to a second end, and a retractor blade extending from the second end of the elongated shaft. The elongated shaft defines an internal chamber. The elongated shaft includes a handle portion at the first end of the elongated shaft, a suction conduit in a first lateral portion of the internal chamber, and a light conduit in a second lateral portion of the internal chamber. The suction conduit extends from a suction port at the first end to a suction aperture at the second end. The light conduit extends from a light-input port at the first end to a light aperture at the second end. The suction conduit and the light conduit are substantially coplanar. The surgical retractor also includes an optical waveguide in the light conduit of the elongated shaft.
    Type: Grant
    Filed: November 11, 2024
    Date of Patent: May 26, 2026
    Assignee: Invuity, Inc.
    Inventors: Vladimir Zagatsky, Fernando Erismann
  • Publication number: 20260063830
    Abstract: A lens assembly comprising one or more lenses is provided. The one or more lenses together comprise a first surface and a second surface. An optical axis of the lens assembly extends in the z-direction. The first surface comprises a first cross-section in a y-z plane, wherein the first cross-section comprises an aspheric first curve that varies in the y-z plane, wherein the first aspheric curve is non-circular, non-elliptical, and non-conical. One surface selected from the first surface and the second surface comprises a second cross-section in a x-z plane, wherein the second cross-section comprises an aspheric second curve in the x-z plane, wherein the second first aspheric curve is non-circular, non-elliptical, and non-conical.
    Type: Application
    Filed: September 4, 2025
    Publication date: March 5, 2026
    Applicant: Stryker Corporation
    Inventors: Robert Anthony STEAD, Fernando ERISMANN
  • Publication number: 20260041480
    Abstract: In an example, an electrosurgical device includes a housing defining an interior bore, a shaft coupled to the housing, and an electrosurgical electrode coupled to the shaft. The shaft extends distally from the interior bore of the housing. The shaft is rotationally fixed relative to the housing. The shaft includes a smoke evacuation channel extending from a proximal end of the shaft to a distal end of the shaft. A distal portion of the electrosurgical electrode extends distally from the shaft, and wherein the electrosurgical electrode is rotatable relative to the housing and the shaft.
    Type: Application
    Filed: October 16, 2025
    Publication date: February 12, 2026
    Inventors: Laura Constance Frey, Scott McFarland, Paul Sheridan, Micheal Burke, Fernando Erismann
  • Publication number: 20250339016
    Abstract: An illumination element has a light input section, a light transmitting section, and a light output section. The light input section is optically coupled to a proximal section of the light transmitting section and inputs light into the illumination element. The light transmitting section transmits the light by total internal reflection or by other transmission means. The light output section is adjacent a distal section of the light transmitting section which has a light extraction area from which the light exits with an energy density. The light extraction area comprises a bore extending at least partially inward into a distal end of the light output section. A plurality of optical structures is disposed on an inner wall of the bore. The optical structures are configured to extract light from the light output section and direct it toward the surgical field.
    Type: Application
    Filed: July 12, 2025
    Publication date: November 6, 2025
    Inventors: Vladimir Zagatsky, Fernando Erismann, Alex Vayser
  • Patent number: 12446947
    Abstract: In an example, an electrosurgical device includes a housing defining an interior bore, a shaft coupled to the housing, and an electrosurgical electrode coupled to the shaft. The shaft extends distally from the interior bore of the housing. The shaft is rotationally fixed relative to the housing. The shaft includes a smoke evacuation channel extending from a proximal end of the shaft to a distal end of the shaft. A distal portion of the electrosurgical electrode extends distally from the shaft, and wherein the electrosurgical electrode is rotatable relative to the housing and the shaft.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: October 21, 2025
    Assignee: Stryker European Operations Limited
    Inventors: Laura Constance Frey, Scott McFarland, Paul Sheridan, Micheal Burke, Fernando Erismann
  • Patent number: 12376736
    Abstract: An illumination element has a light input section, a light transmitting section, and a light output section. The light input section is optically coupled to a proximal section of the light transmitting section and inputs light into the illumination element. The light transmitting section transmits the light by total internal reflection or by other transmission means. The light output section is adjacent a distal section of the light transmitting section which has a light extraction area from which the light exits with an energy density. The light extraction area comprises a bore extending at least partially inward into a distal end of the light output section. A plurality of optical structures is disposed on an inner wall of the bore. The optical structures are configured to extract light from the light output section and direct it toward the surgical field.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: August 5, 2025
    Assignee: Invuity, Inc.
    Inventors: Vladimir Zagatsky, Fernando Erismann, Alex Vayser
  • Publication number: 20250143776
    Abstract: An illuminated energy device includes a handle, an optical waveguide coupled to the handle, and an energy tip such as an electrode coupled to the optical waveguide. The optical waveguide is preferably adjustably coupled to the optical waveguide, and adjustment of the optical waveguide moves a distal end of the optical waveguide closer to or further away from a target such as tissue in a surgical field.
    Type: Application
    Filed: January 13, 2025
    Publication date: May 8, 2025
    Inventors: Alex Vayser, Fernando Erismann, Scott Taylor, Jason Hegener
  • Patent number: 12251273
    Abstract: An illuminated suction apparatus including a hand-held surgical device combining a high-performance illumination waveguide with suction. This device would be useful in a wide array of various surgical procedures including open and minimally invasive orthopedics.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: March 18, 2025
    Assignee: Invuity, Inc.
    Inventors: Alex Vayser, Fernando Erismann, Kenneth B. Trauner, Jonathan G. Gasson, Derrick Richardson
  • Publication number: 20250064441
    Abstract: In an example, a surgical retractor includes an elongated shaft extending from a first end to a second end, and a retractor blade extending from the second end of the elongated shaft. The elongated shaft defines an internal chamber. The elongated shaft includes a handle portion at the first end of the elongated shaft, a suction conduit in a first lateral portion of the internal chamber, and a light conduit in a second lateral portion of the internal chamber. The suction conduit extends from a suction port at the first end to a suction aperture at the second end. The light conduit extends from a light-input port at the first end to a light aperture at the second end. The suction conduit and the light conduit are substantially coplanar. The surgical retractor also includes an optical waveguide in the light conduit of the elongated shaft.
    Type: Application
    Filed: November 11, 2024
    Publication date: February 27, 2025
    Inventors: Vladimir Zagatsky, Fernando Erismann
  • Patent number: 12193722
    Abstract: An illuminated energy device includes a handle, an optical waveguide coupled to the handle, and an energy tip such as an electrode coupled to the optical waveguide. The optical waveguide is preferably adjustably coupled to the optical waveguide, and adjustment of the optical waveguide moves a distal end of the optical waveguide closer to or further away from a target such as tissue in a surgical field.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: January 14, 2025
    Assignee: Invuity, Inc.
    Inventors: Alex Vayser, Fernando Erismann, Scott Taylor, Jason Hegener
  • Patent number: 12137890
    Abstract: In an example, a surgical retractor includes an elongated shaft extending from a first end to a second end, and a retractor blade extending from the second end of the elongated shaft. The elongated shaft defines an internal chamber. The elongated shaft includes a handle portion at the first end of the elongated shaft, a suction conduit in a first lateral portion of the internal chamber, and a light conduit in a second lateral portion of the internal chamber. The suction conduit extends from a suction port at the first end to a suction aperture at the second end. The light conduit extends from a light-input port at the first end to a light aperture at the second end. The suction conduit and the light conduit are substantially coplanar. The surgical retractor also includes an optical waveguide in the light conduit of the elongated shaft.
    Type: Grant
    Filed: September 18, 2020
    Date of Patent: November 12, 2024
    Assignee: Invuity, Inc.
    Inventors: Vladimir Zagatsky, Fernando Erismann
  • Patent number: 11819368
    Abstract: A surgical illumination apparatus comprises a fiber optic input, and illuminated surgical instrument, and an optical coupling bracket for coupling the fiber optic input to the illuminated surgical instrument. The coupling bracket comprises an elongate frame having a proximal end, a distal end, and a central channel extending therebetween, wherein the central channel is sized to receive and support optical fibers of the fiber optic input. The proximal end of the bracket is coupled to the fiber optic input, and the distal end of the bracket is coupled to an illumination element of the illuminated surgical instrument. The apparatus may further comprise a shroud disposed around the illumination element that is coupled to the bracket.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: November 21, 2023
    Assignee: Invuity, Inc.
    Inventors: David Wayne, Alex Vayser, Douglas Rimer, Fernando Erismann, Gaston Tudury, Michael Boutillette, Aaron Weiss, Vladimir Zagatsky
  • Publication number: 20230346503
    Abstract: In an example, an electrosurgical device includes a housing having a proximal end and a distal end, an electrosurgical electrode extending in a distal direction from the distal end of the housing, a plurality of light sources in the housing, and an optical lens assembly including a plurality of optical components that are (i) coupled to each other at a distal end of the optical lens assembly and (ii) separated from each other at a proximal end of the optical lens assembly. Each optical component includes a proximal reflector surface and a distal transmission surface. Each proximal reflector surface extends distally from a respective light source and has an aspheric shape that is configured to substantially collimate the light reflected by the proximal reflector surface. Each distal transmission surface is configured to output the light from the optical component in the distal direction.
    Type: Application
    Filed: September 9, 2021
    Publication date: November 2, 2023
    Inventors: Laura Constance Frey, Scott McFarland, Paul Sheridan, Micheal Burke, Fernando Erismann
  • Publication number: 20230320775
    Abstract: In an example, an electrosurgical device includes a housing defining an interior bore, a shaft coupled to the housing, and an electrosurgical electrode coupled to the shaft. The shaft extends distally from the interior bore of the housing. The shaft is rotationally fixed relative to the housing. The shaft includes a smoke evacuation channel extending from a proximal end of the shaft to a distal end of the shaft. A distal portion of the electrosurgical electrode extends distally from the shaft, and wherein the electrosurgical electrode is rotatable relative to the housing and the shaft.
    Type: Application
    Filed: September 9, 2021
    Publication date: October 12, 2023
    Inventors: Laura Constance Frey, Scott McFarland, Paul Sheridan, Micheal Burke, Fernando Erismann
  • Publication number: 20230255718
    Abstract: A surgical illumination apparatus comprises a fiber optic input, and illuminated surgical instrument, and an optical coupling bracket for coupling the fiber optic input to the illuminated surgical instrument. The coupling bracket comprises an elongate frame having a proximal end, a distal end, and a central channel extending therebetween, wherein the central channel is sized to receive and support optical fibers of the fiber optic input. The proximal end of the bracket is coupled to the fiber optic input, and the distal end of the bracket is coupled to an illumination element of the illuminated surgical instrument. The apparatus may further comprise a shroud disposed around the illumination element that is coupled to the bracket.
    Type: Application
    Filed: January 27, 2023
    Publication date: August 17, 2023
    Inventors: David Wayne, Alex Vayser, Douglas Rimer, Fernando Erismann, Gaston Tudury, Michael Boutillette, Aaron Weiss, Vladimir Zagatsky
  • Patent number: 11589947
    Abstract: A surgical illumination apparatus comprises a fiber optic input, and illuminated surgical instrument, and an optical coupling bracket for coupling the fiber optic input to the illuminated surgical instrument. The coupling bracket comprises an elongate frame having a proximal end, a distal end, and a central channel extending therebetween, wherein the central channel is sized to receive and support optical fibers of the fiber optic input. The proximal end of the bracket is coupled to the fiber optic input, and the distal end of the bracket is coupled to an illumination element of the illuminated surgical instrument. The apparatus may further comprise a shroud disposed around the illumination element that is coupled to the bracket.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: February 28, 2023
    Assignee: Invuity, Inc.
    Inventors: David Wayne, Alex Vayser, Douglas Rimer, Fernando Erismann, Gaston Tudury, Michael Boutillette, Aaron Weiss, Vladimir Zagatsky
  • Publication number: 20220401094
    Abstract: In an example, a surgical retractor includes an elongated shaft extending from a first end to a second end, and a retractor blade extending from the second end of the elongated shaft. The elongated shaft defines an internal chamber. The elongated shaft includes a handle portion at the first end of the elongated shaft, a suction conduit in a first lateral portion of the internal chamber, and a light conduit in a second lateral portion of the internal chamber. The suction conduit extends from a suction port at the first end to a suction aperture at the second end. The light conduit extends from a light-input port at the first end to a light aperture at the second end. The suction conduit and the light conduit are substantially coplanar. The surgical retractor also includes an optical waveguide in the light conduit of the elongated shaft.
    Type: Application
    Filed: September 18, 2020
    Publication date: December 22, 2022
    Inventors: Vladimir Zagatsky, Fernando Erismann
  • Publication number: 20220296331
    Abstract: An illuminated suction apparatus including a hand-held surgical device combining a high-performance illumination waveguide with suction. This device would be useful in a wide array of various surgical procedures including open and minimally invasive orthopedics.
    Type: Application
    Filed: May 31, 2022
    Publication date: September 22, 2022
    Inventors: Alex Vayser, Fernando Erismann, Kenneth B. Trauner, Jonathan G. Gasson, Derrick Richardson
  • Publication number: 20220249192
    Abstract: A surgical illumination apparatus comprises a fiber optic input, and illuminated surgical instrument, and an optical coupling bracket for coupling the fiber optic input to the illuminated surgical instrument. The coupling bracket comprises an elongate frame having a proximal end, a distal end, and a central channel extending therebetween, wherein the central channel is sized to receive and support optical fibers of the fiber optic input. The proximal end of the bracket is coupled to the fiber optic input, and the distal end of the bracket is coupled to an illumination element of the illuminated surgical instrument. The apparatus may further comprise a shroud disposed around the illumination element that is coupled to the bracket.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Inventors: David Wayne, Alex Vayser, Douglas Rimer, Fernando Erismann, Gaston Tudury, Michael Boutillette, Aaron Weiss, Vladimir Zagatsky
  • Patent number: 11382711
    Abstract: An illuminated medical system comprises a medical instrument and a light transmitting waveguide. The waveguide projects lights from a distal portion of the waveguide toward a target area. The waveguide is formed primarily of a cyclic olefin copolymer or a cyclic olefin polymer.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: July 12, 2022
    Assignee: Invuity, Inc.
    Inventors: Thomas L. Grey, Fernando Erismann, Alex Vayser