公开(公告)号：AU2007207878B2

公开(公告)日：2009-11-05

申请号：AU2007207878

申请日：2007-08-16

Applicant: ALCON INC

Inventor： SHKARLET YURI M ,  NAZARIFAR NADER ,  GAO SHAWN X ,  DROST CORNELIS J

IPC: A61B8/06

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.

公开(公告)号：CA2596724C

公开(公告)日：2011-02-01

申请号：CA2596724

申请日：2007-08-09

Applicant: ALCON INC

Inventor： GAO SHAWN X ,  NAZARIFAR NADER ,  DROST CORNELIS J ,  SHKARLET YURI M

IPC: A61F9/007 ,  A61B17/00 ,  G01F1/66

Abstract: A surgical cassette have a rigid fluid channel formed into a rigid plastic component or housing. The piezoelectric crystals of an ultrasonic flow meter are positioned on one side of the fluid channel. The side wall 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. The interface between the wall and the air acts as an acoustic reflector for the operation of the ultrasonic flow meter.

公开(公告)号：IL185140A

公开(公告)日：2011-03-31

申请号：IL18514007

申请日：2007-08-09

Applicant: ALCON INC ,  GAO SHAWN X ,  NAZARIFAR NADER ,  DROST CORNELIS J ,  SHKARLET YURI M

Inventor： GAO SHAWN X ,  NAZARIFAR NADER ,  DROST CORNELIS J ,  SHKARLET YURI M

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.