公开(公告)号：US20200179169A1

公开(公告)日：2020-06-11

申请号：US16661157

申请日：2019-10-23

Applicant: Alcon Inc.

Inventor： Daryush Agahi ,  Jiansheng Zhou

IPC: A61F9/007 ,  H01F7/06 ,  H01F7/16 ,  G05D7/06

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.

公开(公告)号：US12263122B2

公开(公告)日：2025-04-01

申请号：US18181267

申请日：2023-03-09

Applicant: Alcon Inc.

Inventor： Daryush Agahi ,  Jiansheng Zhou

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

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.

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.