公开(公告)号：US20240398623A1

公开(公告)日：2024-12-05

申请号：US18805881

申请日：2024-08-15

Applicant: ALCON INC.

Inventor： Mario ABRAHAM ,  Michael Wittnebel ,  Friederike Rubin-Schwarz ,  Evi Goos

IPC: A61F9/008 ,  A61B3/00 ,  A61B3/11

Abstract: In certain embodiments, an ophthalmic surgical system for adjusting a dimension of an eye includes a camera and a computer. The camera generates a surgical image of the eye in contact with a patient interface, which distorts the cornea. The surgical image includes the pupil with a real pupil diameter. The computer accesses a diagnostic image of the eye with the cornea having a natural curvature. The natural curvature affects the real pupil diameter to yield a diagnostic pupil diameter of the diagnostic image that is different from the real pupil diameter of the surgical image. The computer adjusts the real pupil diameter of the surgical image using an eye model to yield a refracted pupil diameter that takes into account the curvature of the cornea and uses the refracted pupil diameter to compensate for the difference between the diagnostic and real pupil diameters.

公开(公告)号：US20240398620A1

公开(公告)日：2024-12-05

申请号：US18800209

申请日：2024-08-12

Applicant: ALCON INC.

Inventor： Evi Goos ,  Claudia Gorschboth ,  Matthias Foesel ,  Olaf Kittelmann

IPC: A61F9/008 ,  B23K26/04 ,  B23K26/064 ,  G02B5/30 ,  H01S3/10

Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.

公开(公告)号：US20200266601A1

公开(公告)日：2020-08-20

申请号：US16785046

申请日：2020-02-07

Applicant: Alcon Inc.

Inventor： Evi Goos ,  Claudia Gorschboth ,  Matthias Foesel ,  Olaf Kittelmann

IPC: H01S3/10 ,  B23K26/064 ,  B23K26/04

Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.

公开(公告)号：US12083045B2

公开(公告)日：2024-09-10

申请号：US16785046

申请日：2020-02-07

Applicant: Alcon Inc.

Inventor： Evi Goos ,  Claudia Gorschboth ,  Matthias Foesel ,  Olaf Kittelmann

IPC: A61F9/008 ,  B23K26/04 ,  B23K26/064 ,  G02B5/30 ,  H01S3/10

CPC classification number: A61F9/008 ,  B23K26/04 ,  B23K26/064 ,  H01S3/10053 ,  A61F2009/00855 ,  G02B5/3083

Abstract: In certain embodiments, a system for calibrating the focal point of a laser beam comprises a laser, focusing optics, detector optics, a two-photon absorption (TPA) detector, and a computer. The laser generates the laser beam. The focusing optics direct the focal point of the laser beam along a z-axis towards a zero-surface corresponding to a zero-plane, and receives a portion of the laser beam reflected by the zero-surface. The detector optics receive the reflected portion from the focusing optics, and directs the reflected portion towards a TPA detector. The TPA detector senses the peak intensity of the reflected portion, which indicates a proximity of the focal point to the zero-surface, and generates a signal representing the peak intensity of the reflected portion. The computer determines whether the focal point of the laser beam is calibrated in response to the signal representing the peak intensity.

公开(公告)号：US12097149B2

公开(公告)日：2024-09-24

申请号：US17643456

申请日：2021-12-09

Applicant: Alcon Inc.

Inventor： Mario Abraham ,  Michael Wittnebel ,  Friederike Rubin-Schwarz ,  Evi Goos

IPC: A61F9/008 ,  A61B3/00 ,  A61B3/11

CPC classification number: A61F9/00838 ,  A61B3/0025 ,  A61B3/112 ,  A61F2009/00872 ,  A61F2009/00876

Abstract: In certain embodiments, an ophthalmic surgical system for adjusting a dimension of an eye includes a camera and a computer. The camera generates a surgical image of the eye in contact with a patient interface, which distorts the cornea. The surgical image includes the pupil with a real pupil diameter. The computer accesses a diagnostic image of the eye with the cornea having a natural curvature. The natural curvature affects the real pupil diameter to yield a diagnostic pupil diameter of the diagnostic image that is different from the real pupil diameter of the surgical image. The computer adjusts the real pupil diameter of the surgical image using an eye model to yield a refracted pupil diameter that takes into account the curvature of the cornea and uses the refracted pupil diameter to compensate for the difference between the diagnostic and real pupil diameters.

公开(公告)号：US20220183888A1

公开(公告)日：2022-06-16

申请号：US17643456

申请日：2021-12-09

Applicant: Alcon Inc.

Inventor： Mario Abraham ,  Michael Wittnebel ,  Friederike Rubin-Schwarz ,  Evi Goos

IPC: A61F9/008 ,  A61B3/00 ,  A61B3/11

Abstract: In certain embodiments, an ophthalmic surgical system for adjusting a dimension of an eye includes a camera and a computer. The camera generates a surgical image of the eye in contact with a patient interface, which distorts the cornea. The surgical image includes the pupil with a real pupil diameter. The computer accesses a diagnostic image of the eye with the cornea having a natural curvature. The natural curvature affects the real pupil diameter to yield a diagnostic pupil diameter of the diagnostic image that is different from the real pupil diameter of the surgical image. The computer adjusts the real pupil diameter of the surgical image using an eye model to yield a refracted pupil diameter that takes into account the curvature of the cornea and uses the refracted pupil diameter to compensate for the difference between the diagnostic and real pupil diameters.