Patents by Inventor Johannes Loerner
Johannes Loerner 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).
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Publication number: 20230338191Abstract: An ophthalmic laser surgical system for treating an eye includes a laser device, one or more cameras, and a computer. The eye has anatomical features, including the cornea with the anterior corneal surface. The laser device directs a laser beam towards the eye. A camera generates images of the anatomical features, including the anterior corneal surface. The computer facilitates docking a patient interface onto the eye by accessing eye information describing the eye. The eye information comprises an eye model describing the anatomical features. The computer determines from the eye model the predicted corneal surface position when the eye is aligned to dock the patient interface onto the eye. The computer detects from the images the actual corneal surface position prior to docking the patient interface onto the eye, and compares the predicted corneal surface position with the actual corneal surface position to detect misalignment.Type: ApplicationFiled: April 14, 2023Publication date: October 26, 2023Inventors: Johannes Lörner, Peter Riedel, Stefan Schmid, Andreas Vetter
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Publication number: 20230206439Abstract: The disclosure provides a system that may acquire, via an image sensor, an image of an eye of a person; may determine a location of an iris of the eye from the image; may determine a position of a suction ring from the image; may display, via a display, the image; may display, via the display, a first graphic overlay on the image that indicates the location of the iris of the eye; may display, via the display, a second graphic overlay on the image that indicates the position of the suction ring; may determine multiple iris structures from the image; may determine an orientation of the eye based at least on the multiple iris structures from the image; and may display, via the display, information that indicates the orientation of the eye.Type: ApplicationFiled: February 23, 2023Publication date: June 29, 2023Inventor: Johannes Loerner
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Patent number: 11615526Abstract: The disclosure provides a system that may acquire, via an image sensor, an image of an eye of a person; may determine a location of an iris of the eye from the image; may determine a position of a suction ring from the image; may display, via a display, the image; may display, via the display, a first graphic overlay on the image that indicates the location of the iris of the eye; may display, via the display, a second graphic overlay on the image that indicates the position of the suction ring; may determine multiple iris structures from the image; may determine an orientation of the eye based at least on the multiple iris structures from the image; and may display, via the display, information that indicates the orientation of the eye.Type: GrantFiled: March 10, 2020Date of Patent: March 28, 2023Assignee: Alcon Inc.Inventor: Johannes Loerner
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Patent number: 11135093Abstract: In certain embodiments, a patient interface apparatus for ophthalmic surgery comprises an annular member and an evacuation conduit. The annular member has an outer side, an inner side, a distal side, and a proximal side. The inner side defines an opening that allows for a laser beam to reach a treatment region of an eye free from reflection or refraction. The proximal side has a contact surface shaped to affix to a surface of the eye, and a groove that defines a suction chamber with the surface of the eye. The evacuation conduit is capable of fluid communication with the suction chamber, and conducts fluid away from the suction chamber to affix the contact surface to the surface of the eye.Type: GrantFiled: December 5, 2018Date of Patent: October 5, 2021Assignee: Alcon Inc.Inventors: Johannes Loerner, Peter Riedel
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Publication number: 20210177651Abstract: The disclosure provides a system that may: receive data associated with multiple locations associated with a cornea of an eye; adjust at least one lens, based at least on diameter information of the data associated with at least one of the multiple locations, to set a diameter of a laser beam; and for each location of the multiple locations: determine if the eye has changed from a first position to a second position; if the eye has not changed from the first position to the second position, adjust, based at least on the location, at least one mirror; if the eye has changed from the first position to the second position, adjust, based at least on the location and based at least on the second position, the at least one mirror; produce the laser beam; and direct the laser beam to the location for a period of time.Type: ApplicationFiled: December 14, 2020Publication date: June 17, 2021Inventors: Johannes Loerner, Peter Riedel, Linda Weise
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Publication number: 20200311918Abstract: The disclosure provides a system that may acquire, via an image sensor, an image of an eye of a person; may determine a location of an iris of the eye from the image; may determine a position of a suction ring from the image; may display, via a display, the image; may display, via the display, a first graphic overlay on the image that indicates the location of the iris of the eye; may display, via the display, a second graphic overlay on the image that indicates the position of the suction ring; may determine multiple iris structures from the image; may determine an orientation of the eye based at least on the multiple iris structures from the image; and may display, via the display, information that indicates the orientation of the eye.Type: ApplicationFiled: March 10, 2020Publication date: October 1, 2020Inventor: Johannes Loerner
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Publication number: 20190175400Abstract: In certain embodiments, a patient interface apparatus for ophthalmic surgery comprises an annular member and an evacuation conduit. The annular member has an outer side, an inner side, a distal side, and a proximal side. The inner side defines an opening that allows for a laser beam to reach a treatment region of an eye free from reflection or refraction. The proximal side has a contact surface shaped to affix to a surface of the eye, and a groove that defines a suction chamber with the surface of the eye. The evacuation conduit is capable of fluid communication with the suction chamber, and conducts fluid away from the suction chamber to affix the contact surface to the surface of the eye.Type: ApplicationFiled: December 5, 2018Publication date: June 13, 2019Inventors: Johannes Loerner, Peter Riedel
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Patent number: 10024649Abstract: An apparatus for optical coherence tomography (OCT) comprises a light source, a first arm, a second arm, and a processing unit. The first arm has a first dispersive optical assembly that induces a first amount of dispersion into light from the light source and traversing the first arm, where the first arm is one of a sample arm and a reference arm of an interferometer. The second arm has a second dispersive optical assembly that induces a second amount of dispersion into light from the light source and traversing the second arm, where the second arm is the other of the sample arm and reference arm. The second amount of dispersion is larger than the first amount of dispersion. The processing unit processes an interferometry signal to perform OCT, where the interferometry signal represents a superposition of the light from the first arm and the light from the second arm.Type: GrantFiled: June 17, 2014Date of Patent: July 17, 2018Assignee: Wavelight GmbHInventors: Ole Massow, Johannes Loerner
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Patent number: 9660412Abstract: A method and system for generating femtosecond (fs) ultraviolet (UV) laser pulses enables stabile, robust, and optically efficient generation of third harmonic fs laser pulses using periodically-poled quasi-phase-matched crystals. The crystals have different numbers of periodically poled crystalline layers that enable a long conversion length without back-conversion and without a special phase-matching direction. The fs UV laser may have a high conversion efficiency and may be suitable for high power operation.Type: GrantFiled: January 27, 2016Date of Patent: May 23, 2017Assignee: Novartis AGInventors: Klaus Vogler, Joerg Klenke, Johannes Loerner
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Publication number: 20170089688Abstract: An apparatus for optical coherence tomography (OCT) comprises a light source, a first arm, a second arm, and a processing unit. The first arm has a first dispersive optical assembly that induces a first amount of dispersion into light from the light source and traversing the first arm, where the first arm is one of a sample arm and a reference arm of an interferometer. The second arm has a second dispersive optical assembly that induces a second amount of dispersion into light from the light source and traversing the second arm, where the second arm is the other of the sample arm and reference arm. The second amount of dispersion is larger than the first amount of dispersion. The processing unit processes an interferometry signal to perform OCT, where the interferometry signal represents a superposition of the light from the first arm and the light from the second arm.Type: ApplicationFiled: June 17, 2014Publication date: March 30, 2017Inventors: Ole Massow, Johannes Loerner
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Publication number: 20160240996Abstract: A method and system for generating femtosecond (fs) ultraviolet (UV) laser pulses enables stabile, robust, and optically efficient generation of third harmonic fs laser pulses using periodically-poled quasi-phase-matched crystals. The crystals have different numbers of periodically poled crystalline layers that enable a long conversion length without back-conversion and without a special phase-matching direction. The fs UV laser may have a high conversion efficiency and may be suitable for high power operation.Type: ApplicationFiled: January 27, 2016Publication date: August 18, 2016Inventors: Klaus Vogler, Joerg Klenke, Johannes Loerner