公开(公告)号：US20250114083A1

公开(公告)日：2025-04-10

申请号：US18899960

申请日：2024-09-27

Applicant: Alcon Inc.

Inventor： Ahmad GAD ,  Mikhail OVCHINNIKOV ,  Satish YALAMANCHILI ,  Guangyao JIA

IPC: A61B17/00

Abstract: A control system for an ultrasonic hand piece is provided. The control system includes an irrigation pressure sensor configured to measure a pressure of an irrigation fluid, an ultrasonic power source configured to provide power to an ultrasonic transducer, and a controller. The controller is configured to receive a selection of an ultrasonic power modality, generate a control signal based on the selected ultrasonic power modality, provide the control signal to the ultrasonic power source, determine an irrigation flow rate from a measured irrigation pressure provided by the irrigation pressure sensor, calculate a thermal index value based on the irrigation flow rate and the selected ultrasonic power modality, and, in response to the thermal index value reaching a threshold value, adjust the control signal based on the thermal index value. The ultrasonic power modality is one of a two dimensional power modality and a three dimensional power modality.

公开(公告)号：US20250073067A1

公开(公告)日：2025-03-06

申请号：US18810796

申请日：2024-08-21

Applicant: Alcon Inc.

Inventor： Kurt D. LEUKANECH ,  Satish YALAMANCHILI ,  Mikhail OVCHINNIKOV

IPC: A61F9/007 ,  A61M1/00

Abstract: In certain embodiments, a surgical handpiece system includes a phacoemulsification tip, a fluid management system, an ultrasonic drive system, and a controller. The phacoemulsification tip is attached to a shaft. The fluid management system is configured to manage inflow and outflow of fluid from an ocular surgical site. The ultrasonic drive system is configured to generate torsional and longitudinal vibrations in the phacoemulsification tip. The controller is configured to analyze applied voltage and current to the ultrasonic drive system using Fast Fourier Transforms (FFTs), and tune applied frequencies of the torsional and longitudinal vibrations according to at least one resonant frequency.

公开(公告)号：US20250082502A1

公开(公告)日：2025-03-13

申请号：US18819507

申请日：2024-08-29

Applicant: Alcon Inc.

Inventor： John Morgan BOURNE ,  Gisele MAXWELL ,  Mikhail OVCHINNIKOV ,  Adela APOSTOL

IPC: A61F9/008 ,  A61B17/00 ,  A61B18/00 ,  A61B18/22

Abstract: Embodiments disclosed herein relate to devices and systems for use in ophthalmic procedures. In some embodiments, a handpiece device for use with a surgical system is provided. The handpiece device includes a housing, a cable assembly, and a tapered optical fiber. The cable assembly is disposed through a distal end of the housing and optically coupled to the tapered optical fiber. The tapered optical fiber has a diameter that decreases between a proximal end of the tapered optical fiber and a distal end thereof. In some embodiments, the tapered optical fiber comprises a single-crystal fiber. In further embodiments, the tapered optical fiber comprises a tapered sapphire core fiber.