Patents by Inventor Dan E. Andersen

Dan E. Andersen 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: 11937990
    Abstract: Rotating dental systems and related guards and methods are disclosed. In some instances a guard may be configured to prevent material from building up on at least a portion of the dental system. The guard may be configured to prevent materials from being discharged from the dental system. In some embodiments, the guard may also be configured to direct the flow of material along a portion of the dental system. Some guards within the scope of this disclosure comprise bristles.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: March 26, 2024
    Assignee: ULTRADENT PRODUCTS, INC.
    Inventors: Bruce S. McLean, Scot N. Andersen, Dan E. Fischer
  • Patent number: 11896283
    Abstract: An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 ?m to 20 ?m diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: February 13, 2024
    Assignee: INSIGHTFUL INSTRUMENTS, INC.
    Inventors: Michael W. Wiltberger, Phillip Gooding, Dan E. Andersen
  • Publication number: 20230074204
    Abstract: An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 ?m to 20 ?m diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 9, 2023
    Applicant: INSIGHTFUL INSTRUMENTS, INC.
    Inventors: Michael W. WILTBERGER, Phillip GOODING, Dan E. ANDERSEN
  • Patent number: 11554043
    Abstract: Methods and systems for performing laser-assisted surgery on an eye form one or more small anchoring capsulotomies in the lens capsule of the eye. The one or more anchoring capsulotomies are configured to accommodate corresponding anchoring features of an intraocular lens and/or to accommodate one or more drug-eluting members. A method for performing laser-assisted eye surgery on an eye having a lens capsule includes forming an anchoring capsulotomy in the lens capsule and coupling an anchoring feature of the intraocular lens with the anchoring capsulotomy. The anchoring capsulotomy is formed by using a laser to incise the lens capsule. The anchoring feature can protrude transverse to a surface of the intraocular lens that interfaces with the lens capsule adjacent to the anchoring capsulotomy.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 17, 2023
    Assignee: AMO Development, LLC
    Inventors: Georg Schuele, Julian Stevens, Dan E. Andersen
  • Patent number: 11490948
    Abstract: An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 ?m to 20 ?m diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 8, 2022
    Assignee: INSIGHTFUL INSTRUMENTS, INC.
    Inventors: Michael W. Wiltberger, Phillip Gooding, Dan E. Andersen
  • Publication number: 20220304854
    Abstract: A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three dimensions in one or more floaters in the posterior pole. The system also includes one or more controllers programmed to automatically scan tissues of the patient's eye with the imaging assembly; identify one or more boundaries of the one or more floaters based at least in part on the image data; iii. identify one or more treatment regions based upon the boundaries; and operate the optical scanning system with the pulsed laser to produce a treatment beam directed in a pattern based on the one or more treatment regions.
    Type: Application
    Filed: June 13, 2022
    Publication date: September 29, 2022
    Inventors: Daniel V. Palanker, Mark S. Blumenkranz, David H. Mordaunt, Dan E. Andersen
  • Patent number: 11406263
    Abstract: A photomedical system and method for treating and/or diagnosing a patient's eye that includes a first light source for producing light, a scanning device for deflecting the light to produce a pattern of the light on the eye, a viewing element positioned to view the eye by a user or physician, and an alignment element aligned to the viewing element and the scanning device for optically indicating through the viewing element a location on the eye on which the pattern of the light will be located, but without projecting any alignment light onto the eye.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: August 9, 2022
    Assignee: IRIDEX Corporation
    Inventors: Michael W. Wiltberger, Dan E. Andersen, David H. Mordaunt
  • Patent number: 11364147
    Abstract: A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three dimensions in one or more floaters in the posterior pole. The system also includes one or more controllers programmed to automatically scan tissues of the patient's eye with the imaging assembly; identify one or more boundaries of the one or more floaters based at least in part on the image data; iii. identify one or more treatment regions based upon the boundaries; and operate the optical scanning system with the pulsed laser to produce a treatment beam directed in a pattern based on the one or more treatment regions.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: June 21, 2022
    Assignee: AMO Development, LLC
    Inventors: Daniel V. Palanker, Mark S. Blumenkranz, David H. Mordaunt, Dan E. Andersen
  • Publication number: 20220054308
    Abstract: A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three dimensions in one or more floaters in the posterior pole. The system also includes one or more controllers programmed to automatically scan tissues of the patient's eye with the imaging assembly; identify one or more boundaries of the one or more floaters based at least in part on the image data; iii. identify one or more treatment regions based upon the boundaries; and operate the optical scanning system with the pulsed laser to produce a treatment beam directed in a pattern based on the one or more treatment regions.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 24, 2022
    Inventors: Daniel V. Palanker, Mark S. Blumenkranz, David H. Mordaunt, Dan E. Andersen
  • Patent number: 11143828
    Abstract: An optical switch incorporated in a photomedical system, and a method of treating tissue using the optical switch for creating pulsed light. A light source generates an optical beam. An aperture element includes a light-transmitting portion and a light-blocking portion. An optical element such as a mirror, prism or lens directs the optical beam to the aperture element, wherein the optical element is movable for translating the optical beam across the light-transmitting and light-blocking portions of the aperture element, or changing its angle of incidence through the aperture to produce one or more pulses of light from the optical beam. A lens focuses the one or more pulses of the optical beam onto target tissue. A controller controls the movement of the optical element to produce the one or more pulses of light.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 12, 2021
    Assignee: IRIDEX Corporation
    Inventors: Michael W. Wiltberger, Dan E. Andersen, David H. Mordaunt
  • Publication number: 20210307806
    Abstract: An elongate electrode is configured to flex and generate plasma to incise tissue. An electrical energy source operatively coupled to the electrode is configured to provide electrical energy to the electrode to generate the plasma. A tensioning element is operatively coupled to the elongate electrode. The tensioning element can be configured to provide tension to the elongate electrode to allow the elongate electrode to flex in response to the elongate electrode engaging the tissue and generating the plasma. The tensioning element operatively coupled to the flexible elongate electrode may allow for the use of a small diameter electrode, such as a 5 ?m to 20 ?m diameter electrode, which can allow narrow incisions to be formed with decreased tissue damage. In some embodiments, the tensioning of the electrode allows the electrode to more accurately incise tissue by decreasing variations in the position of the electrode along the incision path.
    Type: Application
    Filed: November 6, 2020
    Publication date: October 7, 2021
    Applicant: INSIGHTFUL INSTRUMENTS, INC.
    Inventors: Michael W. WILTBERGER, Phillip GOODING, Dan E. ANDERSEN
  • Patent number: 11026860
    Abstract: Optical scanning system and method for performing therapy on trabecular meshwork of a patient's eye, including a light source for producing alignment and therapeutic light, a scanning device for deflecting the alignment and therapeutic light to produce an alignment therapeutic patterns of the alignment and therapeutic light, and an ophthalmic lens assembly for placement over a patient's eye that includes a reflective optical element for reflecting the light patterns onto the trabecular meshwork of the patient's eye. The reflective optical element can be a continuous annular mirror (e.g. smooth or with multiple facets) to image the entire trabecular meshwork, or a reflective optical element that moves in coordination with the deflection of the beam. Visualization of the alignment and therapeutic patterns of light on the eye can be implemented by reflection thereof off a visualization mirror that transmits a portion of light emanating from the trabecular meshwork.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: June 8, 2021
    Assignee: IRIDEX
    Inventors: Dan E. Andersen, David H. Mordaunt, Michael W. Wiltberger
  • Publication number: 20210128354
    Abstract: Methods and systems for performing laser-assisted surgery on an eye form one or more small anchoring capsulotomies in the lens capsule of the eye. The one or more anchoring capsulotomies are configured to accommodate corresponding anchoring features of an intraocular lens and/or to accommodate one or more drug-eluting members. A method for performing laser-assisted eye surgery on an eye having a lens capsule includes forming an anchoring capsulotomy in the lens capsule and coupling an anchoring feature of the intraocular lens with the anchoring capsulotomy. The anchoring capsulotomy is formed by using a laser to incise the lens capsule. The anchoring feature can protrude transverse to a surface of the intraocular lens that interfaces with the lens capsule adjacent to the anchoring capsulotomy.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Georg Schuele, Julian Stevens, Dan E. Andersen
  • Publication number: 20210085523
    Abstract: Methods and systems for performing laser-assisted surgery on an eye form one or more small anchoring capsulotomies in the lens capsule of the eye. The one or more anchoring capsulotomies are configured to accommodate corresponding anchoring features of an intraocular lens and/or to accommodate one or more drug-eluting members. A method for performing laser-assisted eye surgery on an eye having a lens capsule includes forming an anchoring capsulotomy in the lens capsule and coupling an anchoring feature of the intraocular lens with the anchoring capsulotomy. The anchoring capsulotomy is formed by using a laser to incise the lens capsule. The anchoring feature can protrude transverse to a surface of the intraocular lens that interfaces with the lens capsule adjacent to the anchoring capsulotomy.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Georg Schuele, Julian Stevens, Dan E. Andersen
  • Patent number: 10912677
    Abstract: A system and method for treating target tissue including a light source for generating a beam of light, a plurality of optical fibers, a deflection device configured to selectively deflect the light beam into the input ends of the optical fibers, one optical fiber input end at a time, and a probe having a tip with the output ends of the optical fibers and configured for insertion into target tissue. The probe tip is configured to sequentially project spaced apart spots of the light beam from the output ends as the deflection device deflects the light beam into the optical fibers. One or more moving or static deflecting optics at the probe tip can be used to statically or dynamically deflect the beam exiting the optical fibers.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: February 9, 2021
    Assignee: TOPCON MEDICAL LASER SYSTEMS INC.
    Inventors: David H. Mordaunt, Dan E. Andersen
  • Patent number: 10912678
    Abstract: A laser indirect ophthalmoscope (LIO) apparatus for photomedical treatment and/or diagnosis is presented. The LIO apparatus allows multiple spot ophthalmic surgery to be performed in a wider range of patient positions and less intrusively than currently available methods. The LIO apparatus utilizes a separate or integral beam multiplier that generates one or more optical beams via spatial and/or temporal separation, and an optical system that conditions and directs the one or more optical beams to a target to form a pattern. The LIO apparatus includes a headset, and is therefore wearable by the user (e.g., a physician).
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: February 9, 2021
    Assignee: TOPCON MEDICAL LASER SYSTEMS INC.
    Inventors: Dan E. Andersen, David H. Mordaunt
  • Patent number: 10888459
    Abstract: Methods and systems for performing laser-assisted surgery on an eye form one or more small anchoring capsulotomies in the lens capsule of the eye. The one or more anchoring capsulotomies are configured to accommodate corresponding anchoring features of an intraocular lens and/or to accommodate one or more drug-eluting members. A method for performing laser-assisted eye surgery on an eye having a lens capsule includes forming an anchoring capsulotomy in the lens capsule and coupling an anchoring feature of the intraocular lens with the anchoring capsulotomy. The anchoring capsulotomy is formed by using a laser to incise the lens capsule. The anchoring feature can protrude transverse to a surface of the intraocular lens that interfaces with the lens capsule adjacent to the anchoring capsulotomy.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: January 12, 2021
    Assignee: AMO Development, LLC
    Inventors: Georg Schuele, Julian Stevens, Dan E. Andersen
  • Patent number: 10874553
    Abstract: System and method for making incisions in eye tissue at different depths. The system and method focuses light, possibly in a pattern, at various focal points which are at various depths within the eye tissue. A segmented lens can be used to create multiple focal points simultaneously. Optimal incisions can be achieved by sequentially or simultaneously focusing lights at different depths, creating an expanded column of plasma, and creating a beam with an elongated waist.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: December 29, 2020
    Assignee: AMO Development, LLC
    Inventors: Daniel V. Palanker, Mark S. Blumenkranz, David H. Mordaunt, Dan E. Andersen
  • Patent number: 10744036
    Abstract: System and method for generating patterns P of aiming and treatment light on target eye tissue (e.g. the retina) of a patient's eye. The system includes light sources for treatment and aiming light, a scanner for generating patterns of spots of the generated light, a controller, and a graphic user interface that allows the user to select one of several possible spot patterns, adjust the spot density and/or spot size, and apply patterns with fixed or varied density. The patterns can be formed of interlaced sub-patterns and/or scanned without adjacent spots being consecutively formed to reduce localized heating. Partially or fully enclosed exclusion zones within the patterns protect sensitive target tissue from exposure to the light.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: August 18, 2020
    Assignee: Topcon Medical Laser Systems, Inc.
    Inventors: David Haydn Mordaunt, George Marcellino, Michael W. Wiltberger, Justin Hendrickson, Katrina Bell, Dan E. Andersen
  • Patent number: 10709548
    Abstract: A scanning system for treating target tissue in a patient's eye includes an ultrafast laser source configured to deliver a laser beam comprising a plurality of laser pulses; an Optical Coherence Tomography (OCT) device configured to generate signals which may be used to create an image of the cornea and limbus of the eye of the patient; a scanner configured to focus and direct the laser beam in a pattern within the cornea or limbus to create incisions therein; and a controller operatively coupled to the laser source and scanner configured to control the scanner to adjust the position of the laser beam based upon the signals from the OCT device to create a cataract incision in the cornea or limbus that provides access for lens removal instrumentation to a crystalline lens of the patient's eye, and a relaxation incision in the cornea or limbus.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 14, 2020
    Assignee: AMO Development, LLC
    Inventors: William Culbertson, David Angeley, George Marcellino, Dan E. Andersen