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127 records (took 0.022 seconds)

    Single light source uniform parallel light curtain
    72.
    发明专利
    Single light source uniform parallel light curtain 未知

    公开(公告)号：AU2007249090A1

    公开(公告)日：2008-07-10

    申请号：AU2007249090

    申请日：2007-12-18

    Applicant: ALCON INC

    Inventor： GAO SHAWN X ,  ROWE T SCOTT ,  WILLIAMS DAVID LLOYD ,  AGAHI DARYUSH

    IPC: G01F23/292 ,  A61F9/007

    Abstract: A continuous high resolution fluid level monitoring system (300) is provided by embodiments of the present invention. This continuous high resolution fluid level monitoring system includes a unique fluid level sensor having a point light source (202), parabolic reflector (204), sensor array (308), and detection, processing and control system (310). The point light source illumines a parabolic reflector wherein the point light source is located at the focus of the parabolic reflector. The parabolic reflector reflects light from the point light source to produce a parallel light curtain (210). This parallel light curtain is parallel to an axis of symmetry of the parabolic reflector. The parallel light curtain illumines a chamber (302) such as a chamber in an ophthalmic surgical device used to contain surgical fluid (304). The sensor array coupled to the chamber detects the parallel light curtain illuminating the chamber. The sensor array provides an output to a detection/processing/control system in order to determine the fluid level within the chamber. This optical method of determining the surgical fluid levels may be advantageous in that it prevents physical contamination of the surgical fluids.

    73.
    发明专利
    未知

    公开(公告)号：AT397463T

    公开(公告)日：2008-06-15

    申请号：AT07102888

    申请日：2007-02-22

    Applicant: ALCON INC

    Inventor： GAO SHAWN X ,  WILLIAMS DAVID L

    IPC: A61M1/00 ,  F04B43/12

    Abstract: A method for operating a peristaltic pump (10) is provided. The peristaltic pump comprises a molded flow channel (26) contained on an elastomeric sheet (20) that is bonded or mechanically attached to a rigid substrate (22). The pump head rollers (16) are mounted radially from the axis of rotation (24) of the pump motor (12) and compress the clastomeric flow channels against the rigid substrate. During reflux, the pump head is positioned so that at least one of the rollers is parked in a position to compress the elastomeric flow channel at the input end of the peristaltic pump. Such an operation minimizes the amount of the elastomeric sheet that is exposed to high transient pressures.

    Acoustic fluid level sensor
    77.
    发明专利
    Acoustic fluid level sensor 未知

    公开(公告)号：AU2007200553A1

    公开(公告)日：2007-08-30

    申请号：AU2007200553

    申请日：2007-02-08

    Applicant: ALCON INC

    Inventor： GAO SHAWN X

    IPC: G01F23/296 ,  A61M1/00

    Abstract: An acoustic fluid level sensor is provided for use in a chamber, such as a chamber (12) contained in a surgical cassette (16) adapted to be placed in a surgical console (18). The sensor has an ultrasound transducer (14) mounted on the outside of the bottom (15) of the fluid chamber (12) and is acoustically coupled to the chamber by an acoustic coupling material (20). The transducer sends a pulse ultrasound signal (34) through the chamber and any liquid (30) in the chamber. A signal (36) is reflected back by the air/liquid interface (32) and captured by the transducer. The time required for the signal to travel to and from the transducer will vary with the amount of fluid in the chamber and is indicative of the level of fluid in the chamber.

    ACOUSTIC FLUID LEVEL SENSOR
    78.
    发明专利
    ACOUSTIC FLUID LEVEL SENSOR 未知

    公开(公告)号：CA2576365A1

    公开(公告)日：2007-08-09

    申请号：CA2576365

    申请日：2007-01-26

    Applicant: ALCON INC

    Inventor： GAO SHAWN X

    IPC: G01S15/08 ,  A61F9/007 ,  G01F23/296

    Abstract: An acoustic fluid level sensor for use in a chamber contained in a surgica l cassette. The sensor has an ultrasound transducer mounted on the outside of the bottom of a fluid chamber and is acoustically coupled to the chamber. The transduce r sends a pulse ultrasound signal through the chamber and any liquid in the chamber. T he signal is reflected back by the air/liquid interface and captured by the transducer. T he time required for the signal to travel to and from the transducer will vary with the amount of fluid in the chamber and is indicative of the level of fluid in the chamber.

    System and method of priming a surgical cassette
    79.
    发明专利
    System and method of priming a surgical cassette 未知

    公开(公告)号：AU2013315969B2

    公开(公告)日：2017-04-27

    申请号：AU2013315969

    申请日：2013-08-16

    Applicant: ALCON INC

    Inventor： GAO SHAWN X ,  VAN RODERICK S

    IPC: A61F9/007

    Abstract: During small incision surgery, and particularly during ophthalmic surgery, small probes are inserted into the operative site to cut, remove, or otherwise manipulate tissue. During these surgical procedures, fluid is typically infused into the eye using an infusion system, and the infusion fluid and tissue are aspirated from the surgical site using an aspiration system. The infusion and aspiration systems must be primed prior to surgery. Gas can become trapped within the infusion system and the aspiration system, which can cause certain problems. In prior systems, the system and method of priming the surgical cassette did not remove the trapped gas from the systems. Therefore, a need continues to exist for an improved system and method of priming a surgical cassette.

    ΧΕΙΡΟΥΡΓΙΚΗ ΚΑΣΕΤΑ ΜΕ ΘΑΛΑΜΟ ΡΕΥΣΤΟΥ ΠΟΛΛΑΠΛΩΝ ΧΩΡΩΝ
    80.
    发明专利
    ΧΕΙΡΟΥΡΓΙΚΗ ΚΑΣΕΤΑ ΜΕ ΘΑΛΑΜΟ ΡΕΥΣΤΟΥ ΠΟΛΛΑΠΛΩΝ ΧΩΡΩΝ 未知

    公开(公告)号：CY1111175T1

    公开(公告)日：2015-06-11

    申请号：CY101101064

    申请日：2010-11-25

    Applicant: ALCON INC

    Inventor： HOPKINS MARK A ,  GAO SHAWN X

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

    Abstract: Χειρουργικήκασέταπουδιαθέτειθάλαμοαναρρόφησηςή θάλαμοέγχυσηςμετμήμαανίχνευσηςκαιτμήμααποθήκευσης. Τοτμήμαανίχνευσηςέχειμικρήεγκάρσιαδιατομήκαιδιευκολύνειτηνακριβήμέτρησηστάθμηςρευστού. Τοτμήμααποθήκευσηςέχειμεγαλύτερηεγκάρσιαδιατομήγιατηδιευκόλυνσητηςαποθήκευσηςρευστού.

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