公开(公告)号：US11712161B2

公开(公告)日：2023-08-01

申请号：US16991913

申请日：2020-08-12

Applicant: Alcon Inc.

Inventor： Sascha Birkner ,  Martin Gründig

IPC: A61B3/113 ,  G06T7/73 ,  A61B3/00 ,  A61B3/10 ,  A61B3/12 ,  A61B3/14 ,  A61B3/18 ,  G06V40/19

CPC classification number: A61B3/113 ,  A61B3/0025 ,  A61B3/102 ,  A61B3/1225 ,  A61B3/14 ,  A61B3/18 ,  G06T7/74 ,  G06V40/19 ,  G06T2207/10101 ,  G06T2207/30041 ,  G06V2201/03

Abstract: Systems and methods for tracking eye movement during a diagnostic procedure include a retina imaging system configured to capture a first plurality of images of an eye and detect a presence of a fovea, an eye tracker configured to capture a second plurality of images of the eye and track a position and orientation of the eye; and a control processor configured to synchronize the first and second plurality of images, determine a time at which the fovea is detected in the first plurality of images, and determine one or more images from the second plurality of images to be classified as representative of fixation. The classified images are analyzed to determine eye fixation status during the diagnostic procedure based on eye tracking data.

公开(公告)号：US20230218162A1

公开(公告)日：2023-07-13

申请号：US18174469

申请日：2023-02-24

Applicant: Alcon Inc.

Inventor： Guy Holland ,  Muhammad K. Al-Qaisi

IPC: A61B3/10 ,  A61F9/008 ,  G01B9/02091 ,  A61B5/00 ,  G02B6/02 ,  G01B9/02056

CPC classification number: A61B3/102 ,  A61F9/008 ,  G01B9/02091 ,  A61B5/0066 ,  G02B6/02395 ,  G01B9/02057 ,  A61F2009/00851 ,  A61B2560/0223

Abstract: An OCT imaging system may include an OCT light source operable to emit an OCT light beam, and a beam splitter operable to split the OCT light beam into a sample beam, transferred to a sample arm waveguide, and a reference beam, transferred to a reference arm waveguide. The sample arm waveguide and the reference arm waveguide may be coupled together within a cladding, wherein the cladding improves a calibration of a generated OCT image by fixing axial movement of the sample arm and reference arm waveguides relative to one another. By routing long reference and sample arm waveguide fibers together in the OCT system using a sheath/cladding, OCT image offset due to asymmetrical fiber stretching can be minimized or eliminated.

公开(公告)号：US11696851B2

公开(公告)日：2023-07-11

申请号：US16829223

申请日：2020-03-25

Applicant: Alcon Inc.

Inventor： Steven T. Charles

IPC: A61F9/007 ,  A61B17/34 ,  A61B17/02 ,  A61M25/02

CPC classification number: A61F9/00781 ,  A61B17/0231 ,  A61B17/3421 ,  A61B2017/3492 ,  A61F2250/0018 ,  A61M25/02

Abstract: Certain embodiments provide a cannula system with a retention mechanism comprising a cannula, a hub coupled to the cannula, wherein a distal end of the cannula is configured to be inserted into a body part up to the hub, and a retention mechanism configured to create resistance for retaining the cannula inside the body part in response to force exerted on the cannula for pulling the cannula out of the body part. The retention mechanism may include retention elements coupled to a bottom surface of the hub, and by rotating the hub in a first direction, the one or more retention elements that are parallel to a surface of the body part are configured to penetrate the body part. In other embodiments, the retention mechanism may include halfpipe elements that pivot on fulcrum points to hold or release the hub and cannula from the body part.

公开(公告)号：US20230201031A1

公开(公告)日：2023-06-29

申请号：US18145437

申请日：2022-12-22

Applicant: Alcon Inc.

Inventor： Howard Allen Ketelson ,  Rekha Rangarajan

IPC: A61F9/007 ,  A61F2/14 ,  A61F9/00 ,  A61L17/10 ,  A61L31/14

CPC classification number: A61F9/007 ,  A61F2/142 ,  A61F9/0017 ,  A61L17/10 ,  A61L31/148

Abstract: A dissolvable medical device for placing on the outer exposed surface of the eye to heal the corneal wound comprising of: a polymeric film has sufficient dimensions to substantially cover a cornea when applied to an eye, wherein the polymeric film comprising one or more mucoadhesive polymers, wherein the polymeric film dissolves between 15 minutes to 120 minutes to release the mucoadhesive polymers, wherein the dissolved polymeric film is not impeding visualization of ocular tissue while maintaining a protective film on outer surface of the eye.

公开(公告)号：US20230181364A1

公开(公告)日：2023-06-15

申请号：US18062639

申请日：2022-12-07

Applicant: Alcon Inc.

Inventor： John Park ,  Qing Xiang ,  Ravi Durvasula ,  Ronald T. Smith

IPC: A61F9/008 ,  A61F9/007

CPC classification number: A61F9/008 ,  A61F9/00763 ,  A61F2009/00897 ,  A61F2009/00844

Abstract: In certain embodiments, an optical system for obtaining surgical information includes a probe housing a first optical fiber, a light source, a photoanalyzer, and an optical circulator optically coupled to each of the first optical fiber, the light source, and the photoanalyzer. The optical circulator has a first port configured to receive source light generated from the light source, a second port configured to transmit the source light from the first port to the first optical fiber, and a third port configured to transmit return light in the first optical fiber from the second port to the photoanalyzer. The first optical fiber is configured to emit at least a portion of the source light in the first optical fiber from the probe to contact a body structure, and collect light returning from the body structure as a result of the portion of the source light contacting the body structure.

公开(公告)号：US20230172750A1

公开(公告)日：2023-06-08

申请号：US18059592

申请日：2022-11-29

Applicant: Alcon Inc.

Inventor： Alexander Doppelstein ,  Reto Grüebler

IPC: A61F9/007 ,  A61B90/30

CPC classification number: A61F9/007 ,  A61B90/30

Abstract: A device for surgery that accommodates multiple different implements. The implements may be exchanged or changed out for one another over the course of a surgery in a manner that does not require disengagement of the device from a surgical site. As a result, the need to re-insert the device into the patient and other hazards associated with multiple trips into the surgical site may be minimized. In one embodiment, the device includes cannula architecture to avoid use of a separate cannula at the surgical site.

公开(公告)号：US20230157891A1

公开(公告)日：2023-05-25

申请号：US17938579

申请日：2022-10-06

Applicant: Alcon Inc.

Inventor： Steven T. Charles

IPC: A61F9/009 ,  A61B90/35

CPC classification number: A61F9/009 ,  A61B90/35 ,  A61F2009/00874

Abstract: In certain embodiments, an ophthalmic procedure contact lens for ophthalmic treatment of an eye with a laser beam includes a frame, an objective lens, and an illumination ring. The frame has an eye end, an operator end, and a flange-like shape with an interior region. The eye end is configured to be disposed outwardly from the eye. The objective lens is disposed within the interior region of the frame. The objective lens transmits the laser beam through the eye end to treat the eye. The illumination ring is coupled to the frame and provides annular illumination through the eye end to illuminate the eye. The illumination ring includes a ring substrate and light emitters coupled to the ring substrate. The light emitters emit light.

公开(公告)号：US20230157811A1

公开(公告)日：2023-05-25

申请号：US18054424

申请日：2022-11-10

Applicant: Alcon Inc.

Inventor： Paul R. Hallen

IPC: A61F2/16 ,  A61B3/10 ,  A61B3/107

CPC classification number: A61F2/16 ,  A61B3/1005 ,  A61B3/102 ,  A61B3/107

Abstract: Certain aspects presented herein provide systems and methods utilizing one or more machine learning models in determining a severity of vitreous disease, and in particular, vitreous opacities. Such machine learning models are trained based on historical patient data to determine the severity of vitreous opacities afflicting a current patient. The severity determination may thereafter be utilized to inform treatment decisions for the current patient, including patient suitability for certain types of treatment.

公开(公告)号：US20230149113A1

公开(公告)日：2023-05-18

申请号：US18047370

申请日：2022-10-18

Applicant: Alcon Inc.

Inventor： Qing Xiang ,  Timothy C. Ryan ,  Yu Yan

IPC: A61B90/30 ,  A61F9/007

CPC classification number: A61B90/30 ,  A61F9/00754 ,  A61B2090/306

Abstract: An instrument to facilitate hands-free illumination of an eye for a surgical procedure. The instrument includes an optical end of unique architecture and surfacing such that the instrument may be left immobile while sufficiently illuminating an eye interior with greater than 100° of wide beam spread angle provided. Further, the grind surfacing provided to the end cone of the optical end provides enhanced light distribution.

公开(公告)号：US11642243B2

公开(公告)日：2023-05-09

申请号：US16661157

申请日：2019-10-23

Applicant: Alcon Inc.

Inventor： Daryush Agahi ,  Jiansheng Zhou

IPC: F16K31/06 ,  A61F9/007 ,  G05D7/06 ,  H01F7/06 ,  H01F7/16 ,  F16K37/00 ,  A61B17/00

CPC classification number: A61F9/00763 ,  F16K31/0603 ,  F16K37/0041 ,  G05D7/0623 ,  G05D7/0635 ,  H01F7/064 ,  H01F7/16 ,  A61B2017/0019 ,  A61B2017/00544

Abstract: Systems and methods for optimizing the application of pulse width modulation (PWM) in a voltage signal for delivering a current in a valve used to alternatively deliver pressurized gas to and vent from chambers in a vitrectomy probe used to drive a cutter.