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公开(公告)号：PT1829568E
公开(公告)日：2008-09-15
申请号：PT07102888
申请日：2007-02-22
Applicant: ALCON INC
Inventor： GAO SHAWN X , WILLIAMS DAVID L
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公开(公告)号：BRPI0703393A
公开(公告)日：2008-04-22
申请号：BRPI0703393
申请日：2007-08-28
Applicant: ALCON INC
Inventor： NAZARIFAR NADER , GAO SHAWN X
Abstract: A surgical cassette (10) is provided having a rigid fluid channel (34) formed into a rigid plastic component or housing (14). The piezoelectric crystals of an ultrasonic flow meter (120) are positioned on one side of the fluid channel. The side wall (35) of the fluid channel opposite the piezoelectric crystals is exposed to fluid in the flow channel on its interior side and is exposed to ambient air on its exterior side (39). The interface (41) between the wall and the air acts as an acoustic reflector for the operation of the ultrasonic flow meter.
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公开(公告)号：AU2006262933A1
公开(公告)日：2007-01-04
申请号：AU2006262933
申请日：2006-02-21
Applicant: ALCON INC
Inventor： GAO SHAWN X , HOPKINS MARK ALAN
IPC: A61M1/00
Abstract: A microsurgical system capable of controlling aspiration and detecting an occlusion via monitoring a change in either suction flow rate or suction impedance.
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公开(公告)号：AU2020268940A1
公开(公告)日：2021-10-28
申请号：AU2020268940
申请日：2020-04-27
Applicant: ALCON INC
Inventor： GAO SHAWN X , MILUTINOVIC IVAN , VAN RODERICK S , BAXTER VINCENT A , GORDON RAPHAEL
Abstract: Systems and methods are disclosed for measuring fluid pressure in an ophthalmic surgical system. An example system comprises a fluid flow path and a pressure sensor system for measuring pressure in the fluid flow path. The pressure sensor system comprises a conductive, movable diaphragm having a first side and a second side, the first side of the diaphragm facing the fluid flow path, and an eddy current position sensor positioned on the second side of the diaphragm without contacting the diaphragm. The eddy current position sensor comprises a position sensor coil activatable by high frequency alternating current and signal conditioning electronics capable of sensing inductance or impedance or resonant frequency variation in the position sensor coil as a gap between the diaphragm and the position sensor coil changes and of translating that variation into a displacement signal correlated to fluid pressure. A method of measuring fluid pressure may be performed using one or more of the systems described herein.
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公开(公告)号：CA3134483A1
公开(公告)日：2020-11-12
申请号：CA3134483
申请日：2020-04-27
Applicant: ALCON INC
Inventor： GAO SHAWN X , MILUTINOVIC IVAN , VAN RODERICK S , BAXTER VINCENT A , GORDON RAPHAEL
Abstract: Systems and methods are disclosed for measuring fluid pressure in an ophthalmic surgical system. An example system comprises a fluid flow path and a pressure sensor system for measuring pressure in the fluid flow path. The pressure sensor system comprises a conductive, movable diaphragm having a first side and a second side, the first side of the diaphragm facing the fluid flow path, and an eddy current position sensor positioned on the second side of the diaphragm without contacting the diaphragm. The eddy current position sensor comprises a position sensor coil activatable by high frequency alternating current and signal conditioning electronics capable of sensing inductance or impedance or resonant frequency variation in the position sensor coil as a gap between the diaphragm and the position sensor coil changes and of translating that variation into a displacement signal correlated to fluid pressure. A method of measuring fluid pressure may be performed using one or more of the systems described herein.
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Patent Agency Ranking
公开(公告)号：CY1109934T1
公开(公告)日：2014-09-10
申请号：CY101100280
申请日：2010-03-23
Applicant: ALCON INC
Inventor： HOPKINS MARK ALAN , GAO SHAWN X
IPC: A61M1/00
Abstract: Έναμικροχειρουργικόσύστημαικανόναελέγχειαναρρόφησηδιαμέσουμίαςμεθόδουελέγχουκενούαέρος, μίαςμεθόδουελέγχουεκμυζήσεωςή μίαςμεθόδουςελέγχουροής.
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公开(公告)号：AU2007227231B2
公开(公告)日：2013-05-23
申请号：AU2007227231
申请日：2007-01-22
Applicant: ALCON INC
Inventor： DOMASH DAVID M , GAO SHAWN X
Abstract: A surgical cassette having an aspiration chamber with a bubble separating structure. The bubble separating structure facilitates accurate, reliable measurement of the fluid level in the chamber.
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公开(公告)号：AU2006295262B2
公开(公告)日：2011-10-27
申请号：AU2006295262
申请日：2006-08-30
Applicant: ALCON INC
Inventor： HOPKINS MARK A , GAO SHAWN X , NADER NAZARIFAR , REED FREDERICK M , HUCULAK JOHN C , THOMAS ROGER D
IPC: A61M37/00
Abstract: An improved surgical cassette for controlling intraocular pressure during ophthalmic surgery.
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公开(公告)号：DE602007013879D1
公开(公告)日：2011-05-26
申请号：DE602007013879
申请日：2007-01-22
Applicant: ALCON INC
Inventor： GAO SHAWN X , DOMASH DAVID M
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公开(公告)号：ES2356561T3
公开(公告)日：2011-04-11
申请号：ES06790101
申请日：2006-08-30
Applicant: ALCON INC
Inventor： NAZARIFAR NADER , HOPKINS MARK A , GAO SHAWN X , REED FREDERICK M , HUCULAK JOHN C , THOMAS ROGER D
IPC: A61M37/00
Abstract: Casete quirúrgico oftálmico (27), que comprende: una doble cámara de infusión (16), presentando dicha doble cámara de infusión una primera cámara (16a) no acoplada de manera fluida a una segunda cámara (16b); un primer conducto de fluido (72) acoplado de manera fluida a dicha primera cámara para proporcionar un fluido de irrigación (140) a dicha primera cámara; un segundo conducto de fluido (76) acoplado de manera fluida a dicha primera cámara para proporcionar dicho fluido de irrigación a un dispositivo quirúrgico (29); un tercer conducto de fluido (74) acoplado de manera fluida a dicha segunda cámara para proporcionar dicho fluido de irrigación a dicha segunda cámara; y un cuarto conducto de fluido (78) acoplado de manera fluida a dicha segunda cámara para proporcionar dicho fluido de irrigación a dicho dispositivo quirúrgico; estando dispuestos dicha doble cámara de infusión, dicho primer conducto de fluido, dicho segundo conducto de fluido, dicho tercer conducto de fluido y dicho cuarto conducto de fluido en el interior de dicho casete quirúrgico.
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