公开(公告)号：US11070199B2

公开(公告)日：2021-07-20

申请号：US16292660

申请日：2019-03-05

Applicant: Alcon Inc.

Inventor： Scott DeLong ,  David Jung

IPC: H03K5/1532 ,  H01S5/026

Abstract: In certain embodiments, a system for detecting a peak laser pulse includes a laser, a photodiode configured to detect pulses emitted by the laser, and circuitry for detecting a peak pulse timing of the laser. The circuitry is configured to receive a periodic series of voltage signals based on laser pulses detected by the photodiode, stretch the voltage signals, and obtain sampled voltages from the stretched voltage signals using periodic control signals. The circuitry is further configured to shift the timing of the periodic control signals, compare the sampled voltages for respective timings of the control signals, and select an optimal control signal timing based on the comparison.

公开(公告)号：US20230363944A1

公开(公告)日：2023-11-16

申请号：US18308150

申请日：2023-04-27

Applicant: Alcon Inc.

Inventor： David Jung ,  Alireza Malek Tabrizi ,  Keith Watanabe

IPC: A61F9/008

CPC classification number: A61F9/008 ,  A61B2018/00696

Abstract: Systems and methods are disclosed for flexibly controlling laser pulses being output from a laser system. An example surgical system comprises a laser, an optical switching device, and a laser pulse controller. Optical switching control signals communicated by the laser pulse controller control the length of a pulse picking cycle and the number of laser pulses in each pulse picking cycle to be output from the laser system. The number of laser pulses in each pulse picking cycle to be output from the laser system may be adjustable in a range that includes more than 50% of the laser pulses in each pulse picking cycle.

公开(公告)号：US20210289600A1

公开(公告)日：2021-09-16

申请号：US17192951

申请日：2021-03-05

Applicant: Alcon Inc.

Inventor： David Jung ,  Jason L. Lee

IPC: H05B45/34 ,  A61F9/007 ,  H05B45/325 ,  H05B45/345 ,  H05B45/36 ,  H05B47/19

Abstract: Systems and methods are disclosed for controlled illumination of LEDs. An example system comprises: a plurality of LEDs; an LED controller; a current buffer adapted to receive an input bias level signal from the LED controller, wherein a set of LEDs to be controlled together are connected in parallel with each other in a circuit with the current buffer; and at least one current limiting resistor connected in the circuit with the plurality of LEDs and the current buffer. The systems and methods are adapted to control the illumination of the LEDs by applying a constant voltage to the circuit based upon the input bias level signal, thereby controlling the illumination of the light-emitting diodes without the use of pulse width modulation. Crosstalk interference with RFID components due to pulse width modulation is thereby avoided.

公开(公告)号：US20230116921A1

公开(公告)日：2023-04-20

申请号：US18046006

申请日：2022-10-12

Applicant: Alcon Inc.

Inventor： David Jung ,  Francisco Javier Ochoa ,  Daniel Castro ,  Corey Stewart ,  Keith Watanabe

IPC: A61F9/008 ,  G02B26/08 ,  G02B26/02

Abstract: Systems and methods are disclosed for dynamically controlling laser pulses being output from a laser system. An example surgical system comprises a laser, an optical switching device, an adjustable input device such as a foot pedal, and a laser pulse controller. An operator actuates the adjustable input device over an operating range to control dynamically the laser pulses being output from the laser system. In one mode, the adjustable input device may dynamically control output laser energy. In another mode, the adjustable input device may dynamically control selection of laser pulses to be output from the system.

公开(公告)号：US20220354575A1

公开(公告)日：2022-11-10

申请号：US17662153

申请日：2022-05-05

Applicant: Alcon Inc.

Inventor： David Jung ,  Daniel Castro ,  Zsolt Bor ,  Corey Stewart ,  Billy Lee

IPC: A61B18/20 ,  G03F7/20 ,  G02F1/13363

Abstract: Systems and methods are disclosed for selectively allowing or preventing output of laser pulses. In some embodiments, a laser system comprises a shutter and a shutter motor. The shutter motor is configured to move the shutter in an alternating manner between a first position in which output of laser electromagnetic radiation is allowed a second position in which output of laser electromagnetic radiation is prevented.

公开(公告)号：US11350499B2

公开(公告)日：2022-05-31

申请号：US17192951

申请日：2021-03-05

Applicant: Alcon Inc.

Inventor： David Jung ,  Jason L. Lee

IPC: H05B45/34 ,  H05B45/36 ,  H05B47/19 ,  H05B45/345 ,  H05B45/325 ,  A61F9/007

Abstract: Systems and methods are disclosed for controlled illumination of LEDs. An example system comprises: a plurality of LEDs; an LED controller; a current buffer adapted to receive an input bias level signal from the LED controller, wherein a set of LEDs to be controlled together are connected in parallel with each other in a circuit with the current buffer; and at least one current limiting resistor connected in the circuit with the plurality of LEDs and the current buffer. The systems and methods are adapted to control the illumination of the LEDs by applying a constant voltage to the circuit based upon the input bias level signal, thereby controlling the illumination of the light-emitting diodes without the use of pulse width modulation. Crosstalk interference with RFID components due to pulse width modulation is thereby avoided.

公开(公告)号：US20230363945A1

公开(公告)日：2023-11-16

申请号：US18307983

申请日：2023-04-27

Applicant: Alcon Inc.

Inventor： David Jung ,  Keith Watanabe

IPC: A61F9/008 ,  A61B18/20

CPC classification number: A61F9/00823 ,  A61B18/20 ,  A61F2009/00891 ,  A61F2009/00887 ,  A61F2009/0087 ,  A61B2018/205547

Abstract: Systems and methods are disclosed for flexibly controlling laser pulses being output from a laser system. An example surgical system comprises a laser, a laser energy control system configured to regulate the amount of electromagnetic energy of each laser pulse that exits the laser system, and a laser pulse controller. The control signals communicated by the laser pulse controller may include a sub-carrier signal that modulates the amount of electromagnetic energy of the laser pulses that exit the laser system. The control signals may further include a threshold signal and/or a maximum power signal. The sub-carrier signal may oscillate between the threshold power and a maximum power.

公开(公告)号：US20220357197A1

公开(公告)日：2022-11-10

申请号：US17662135

申请日：2022-05-05

Applicant: Alcon Inc.

Inventor： Alireza Malek Tabrizi ,  Reza Khazaeinezhad ,  Adela Apostol ,  John Hossein Karim ,  Daniel Castro ,  Corey Stewart ,  David Jung

IPC: G01J1/42 ,  G02B27/14 ,  G01J1/44 ,  A61F9/008

Abstract: Systems and methods are disclosed for monitoring a laser system using detection of back reflection. In some embodiments, a laser system comprises a laser, at least one optical fiber, and a back-reflection monitoring sensor for detecting electromagnetic radiation reflected back from the optical fiber(s). The back-reflection monitoring sensor may be adapted to detect back-reflected electromagnetic radiation while the laser system is in use. The laser system may further comprise a computing system adapted to calculate an output power of the system based upon the back-reflected electromagnetic radiation. In some embodiments, a method of monitoring a laser system using detection of back reflection comprises transmitting electromagnetic radiation from a laser, receiving the electromagnetic radiation at one or more optical fibers, and detecting electromagnetic radiation that is back reflected at a back-reflection monitoring sensor.