公开(公告)号：CA2614807A1

公开(公告)日：2008-06-18

申请号：CA2614807

申请日：2007-12-14

Applicant: ALCON INC

Inventor： HOPKINS MARK ALAN ,  GAO SHAWN X

IPC: A61B17/00 ,  A61F9/007 ,  A61M1/00

Abstract: Embodiments of the present invention provide an apparatus and method controlling the flow of aspiration fluid in an aspiration chamber of a surgical cassette. One embodiment of the present invention provides an aspiration chamber having an aspiration port positioned at or close to the bottom of the chamber. When the aspiration fluid enters the aspiration chamber from below the fluid surface (e.g., from a port located at the bottom or on a sidewall close to the bottom), it does not create disturbance at the liquid/air interface and thus does not disturb the continuous level sensing. Also, since the aspiration port is placed at or very close to the bottom of the aspiration chamber, the liquid inside the chamber can be fully used for sustained reflux and push priming.

公开(公告)号：AU2007207884A1

公开(公告)日：2008-04-03

申请号：AU2007207884

申请日：2007-08-16

Applicant: ALCON INC

Inventor： GAO SHAWN X

IPC: A61F9/007

Abstract: An irrigation/aspiration system (10), comprises an irrigation line (31), wherein the irrigation line is configured to be connected to a source of irrigation fluid (29); an aspiration line (30); a collection chamber (18); a vacuum pump (12), wherein the vacuum pump is configured to introduce a vacuum into the collection chamber (18) to draw an irrigation fluid from the source of irrigation fluid (29) through the irrigation line (31), a surgical site, and the aspiration line (30) and into the collection chamber; control circuitry (24); an irrigation sensor (26), wherein the control circuitry (24) is configured to monitor irrigation fluid flow or irrigation fluid pressure in the irrigation line through use of the irrigation sensor; a flow pump (14), wherein the control circuitry (24) is configured to use the flow pump (14) and/or vacuum pump (12) to adjust a level of fluid in the collection chamber (18);a fluid level sensor (20), wherein the control circuitry (24) is configured to monitor a fluid level in the collection chamber (18) using the fluid level sensor; a pressure transducer (16), wherein the control circuitry (24) is configured to use the pressure transducer to monitor a vacuum in the collection chamber (18) from the vacuum pump (12). The control circuitry (24) is configured to vary the vacuum introduced into the collection chamber (18) based on the monitored irrigation fluid flow or irrigation fluid pressure and the monitored fluid level in the collection chamber so as to maintain fluid flow into the collection chamber through the aspiration line (30) at a selected flow rate.

公开(公告)号：BRPI0702962A

公开(公告)日：2008-02-26

申请号：BRPI0702962

申请日：2007-06-28

Applicant: ALCON INC

Inventor： GAO SHAWN X

IPC: A61F9/00 ,  A61F9/007 ,  G01F23/292

Abstract: The present invention provides a system and method for detecting the level or presence of a fluid in a surgical cassette (150,500) by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected (220',330,360) or refracted (220,330',360') in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array (206,508,314,352) will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.

公开(公告)号：AU2007202847A1

公开(公告)日：2008-01-17

申请号：AU2007202847

申请日：2007-06-19

Applicant: ALCON INC

Inventor： GAO SHAWN X

IPC: A61M5/14 ,  G01F23/292

Abstract: The present invention provides a system and method for detecting the level or presence of a fluid in a surgical cassette (150,500) by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected (220',330,360) or refracted (220,330',360') in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array (206,508,314,352) will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.

公开(公告)号：CA2642729A1

公开(公告)日：2007-09-27

申请号：CA2642729

申请日：2007-01-22

Applicant: ALCON INC

Inventor： DOMASH DAVID M ,  GAO SHAWN X

IPC: A61M1/00 ,  A61B19/00 ,  A61M5/24

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.

公开(公告)号：CA2620367A1

公开(公告)日：2007-04-05

申请号：CA2620367

申请日：2006-08-30

Applicant: ALCON INC

Inventor： GAO SHAWN X ,  HOPKINS MARK A ,  NAZARIFAR NADER ,  HUCULAK JOHN C ,  REED FREDERICK M ,  THOMAS ROGER D

IPC: A61M37/00

Abstract: An improved surgical cassette for controlling intraocular pressure during ophthalmic surgery.

公开(公告)号：CA2608633A1

公开(公告)日：2007-01-04

申请号：CA2608633

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.

公开(公告)号：AU2013315970B2

公开(公告)日：2017-10-12

申请号：AU2013315970

申请日：2013-08-16

Applicant: ALCON INC

Inventor： GAO SHAWN X ,  VAN RODERICK S

IPC: A61F9/007 ,  A61F9/011 ,  A61M1/00 ,  A61M37/00

Abstract: Embodiments of this disclosure provide an apparatus and method for gas and debris management. The apparatus comprises a surgical cassette, wherein the surgical cassette is at least partially formed of a cassette material defining a chamber. The surgical cassette has a floor and a plurality of walls. The apparatus also has a drain conduit with a drain entry and a drain exit. The drain entry is connected to the chamber near the floor. The drain conduit has a top portion and a bottom portion. The apparatus also has an aspiration conduit. The aspiration conduit has an aspiration port and an aspiration exit. The aspiration conduit is in liquid communication with the chamber and the drain conduit. At least a portion of the top portion of the drain conduit is positioned above at least a portion of the aspiration exit.

公开(公告)号：CY1111888T1

公开(公告)日：2015-11-04

申请号：CY111100243

申请日：2011-03-02

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: Βελτιωμένηχειρουργικήκασέταγιατονέλεγχοτηςενδοφθαλμικήςπίεσηςκατάδιάρκειαοφθαλμικήςχειρουργικήςεπέμβασης.

公开(公告)号：CA2592212C

公开(公告)日：2015-08-04

申请号：CA2592212

申请日：2007-06-18

Applicant: ALCON INC

Inventor： GAO SHAWN X

IPC: A61F9/007 ,  A61B17/00 ,  G01F23/292 ,  G01N21/41

Abstract: Embodiments of the present invention provide a system and method for detecting the level of a fluid in a surgical cassette by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected or refracted in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.