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公开(公告)号：AU2013329597B2
公开(公告)日：2017-07-20
申请号：AU2013329597
申请日：2013-10-03
Applicant: ALCON INC
Inventor： MADDEN SEAN , SORENSEN GARY P , GORDON RAPHAEL , LAYSER GREGORY S , WILSON DANIEL J , BAXTER VINCENT A
Abstract: In various embodiments, a device for delivering pressurized irrigation may include a squeeze plate and a pressure sensor module. The squeeze plate may move relative to the pressure sensor module to apply pressure to a flexible container (e.g., a bag of irrigation fluid) between the squeeze plate and the pressure sensor module. The pressure sensor module may include a pressure sensor to measure a force exerted on the pressure sensor module by the flexible container as pressure is applied to the flexible container from the squeeze plate. In some embodiments, the pressure sensor module may include a bag contact plate and the pressure sensor may measure a force exerted on the bag contact plate by the flexible container located between the bag contact plate and the squeeze plate. In some embodiments, the pressure sensor may sense a pressure associated with the flexible container without an intervening bag contact plate.
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Patent Agency Ranking
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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公开(公告)号：AU2013364077C1
公开(公告)日：2018-03-22
申请号：AU2013364077
申请日：2013-11-11
Applicant: ALCON INC
Inventor： BAXTER VINCENT A , WILSON DANIEL J
Abstract: A surgical cassette clamping system includes a mounting plate having a first side and a second side. A bracket system may be disposed adjacent the first side of the mounting plate. A clamp motor may be disposed adjacent the mounting plate and fixed relative to the mounting plate. The clamp motor may be operably connected to the bracket system to displace the bracket system relative to the mounting plate. The system may also include a plurality of pivot arms pivotably connected to the bracket system and extending adjacent the second side of the mounting plate. An engagement portion may be attached to each of the plurality of pivot arms that cooperatively engages the second side of the mounting plate, the engagement portion being operable to pivot the pivot arms when the bracket system moves relative to the mounting plate.
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公开(公告)号：AU2014272274B2
公开(公告)日：2017-07-20
申请号：AU2014272274
申请日：2014-03-11
Applicant: ALCON INC
Inventor： BAXTER VINCENT A
IPC: F04B43/12
Abstract: A roller assembly comprises a central section with a hub, the central section having a plurality of pivots located around the central section; a plurality of arms, each arm having a roller end and a pivot end, the pivot ends coupled to the central section at the plurality of pivots such that each arm is capable of pivoting independently with respect to the central section, the roller ends and pivot ends of each arm located a distance of at least one roller width away from each other; a plurality of rollers, one roller coupled to each of the roller ends of the plurality of arms; wherein the plurality of rollers and arms are located around the central section such that the pivot is located a distance away from the roller.
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公开(公告)号：AU2016381394A1
公开(公告)日：2018-05-31
申请号：AU2016381394
申请日：2016-12-15
Applicant: ALCON INC
Inventor： BAXTER VINCENT A , WILSON DANIEL J
Abstract: An ophthalmic surgical system includes at least one light source. The light source is configured to output light towards a fluidics cassette so a first portion of the light reflects from a deflectable diaphragm of the fluidics cassette, and a second portion of the light reflects from a reference portion of the fluidics cassette. The diaphragm is configured to deflect relative to the reference portion in response to a pressure associated with a fluid within the fluidics cassette. At least one sensor is configured to receive the first portion of the light reflected from the diaphragm and the second portion of the light reflected from the reference portion. A computing device in communication with the sensor is configured to determine the pressure associated with the fluid within the fluidics cassette based on the received first and second portions of the light. Associated devices, systems, and methods are also disclosed.
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