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    SINGLE LIGHT SOURCE UNIFORM PARALLEL LIGHT CURTAIN
    31.
    发明申请
    SINGLE LIGHT SOURCE UNIFORM PARALLEL LIGHT CURTAIN 有权
    单光源均匀平行光幕

    公开(公告)号：US20090013780A1

    公开(公告)日：2009-01-15

    申请号：US11955669

    申请日：2007-12-13

    申请人： Shawn X. Gao ,  David Lloyd Williams ,  T. Scott Rowe ,  Daryush Agahi

    发明人： Shawn X. Gao ,  David Lloyd Williams ,  T. Scott Rowe ,  Daryush Agahi

    IPC分类号： G01F23/292

    CPC分类号： A61M1/0023 ,  A61F9/00736 ,  A61M2205/3306 ,  A61M2205/3389 ,  G01F23/2921

    摘要： A continuous high resolution fluid level monitoring system 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, parabolic reflector, sensor array, and detection, processing and control system. 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. This parallel light curtain is parallel to an axis of symmetry of the parabolic reflector. The parallel light curtain illumines a chamber such as a chamber in an ophthalmic surgical device used to contain surgical fluid. 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.

    摘要翻译： 通过本发明的实施例提供连续的高分辨率液位监视系统。 这种连续的高分辨率液位监测系统包括具有点光源，抛物面反射器，传感器阵列以及检测，处理和控制系统的独特液位传感器。 点光源照亮抛物面反射器，其中点光源位于抛物面反射器的焦点处。 抛物面反射器反射来自点光源的光，以产生平行的光幕。 该平行光幕平行于抛物面反射体的对称轴。 平行光幕在用于容纳外科手术液体的眼科手术装置中照亮诸如腔室的腔室。 耦合到腔室的传感器阵列检测照射腔室的平行光幕。 传感器阵列为检测/处理/控制系统提供输出，以确定腔室内的液位。 这种确定手术液体水平的光学方法可能是有利的，因为它防止手术流体的物理污染。

    System and method of priming a surgical cassette
    33.
    发明授权
    System and method of priming a surgical cassette 有权
    引发手术盒的系统和方法

    公开(公告)号：US09132229B2

    公开(公告)日：2015-09-15

    申请号：US13614745

    申请日：2012-09-13

    申请人： Shawn X. Gao ,  Roderick S. Van

    发明人： Shawn X. Gao ,  Roderick S. Van

    IPC分类号： A61M1/00 ,  A61M5/142 ,  F04D9/00 ,  A61M1/28 ,  A61M5/14 ,  A61M1/36 ,  A61M5/31

    CPC分类号： A61M5/142 ,  A61F9/00736 ,  A61M1/0058 ,  A61M1/288 ,  A61M1/3643 ,  A61M1/3644 ,  A61M1/3647 ,  A61M3/0254 ,  A61M5/16831 ,  A61M5/3146 ,  A61M2005/1402 ,  A61M2205/12 ,  A61M2205/122 ,  A61M2205/128 ,  A61M2210/0612 ,  F04D9/004

    摘要： The present disclosure relates in general to an apparatus and method for priming a liquid or surgical cassette. In one embodiment, an infusion system within the liquid cassette is primed using a forward flow of a liquid and a backward flow of the liquid. The forward flow of the liquid creates a first volume of liquid stored within an infusion conduit, which is connected to an infusion chamber via a first valve. The infusion conduit has an infusion port exposed to a non-liquid environment having a first pressure. A second pressure is created in the infusion chamber that is lower than the first pressure. Opening the first valve causes a second volume of liquid within the infusion conduit to flow over the first valve and towards the infusion chamber. The second volume of liquid is less than or equal to the first volume of liquid.

    摘要翻译： 本公开一般涉及一种用于引发液体或外科手术盒的装置和方法。 在一个实施例中，液体盒内的输注系统使用液体的向前流动和液体的向后流动来引发。 液体的向前流动产生储存在输注导管内的第一体积的液体，其经由第一阀连接到浸泡室。 输液导管具有暴露于具有第一压力的非液体环境的输注口。 在浸泡室中产生比第一压力低的第二压力。 打开第一阀导致输液管道内的第二体积的液体流过第一阀并且朝向浸泡室流动。 液体的第二体积小于或等于第一体积的液体。

    Systems and methods for dynamic pneumatic valve driver
    34.
    发明授权
    Systems and methods for dynamic pneumatic valve driver 有权
    动态气动阀门驱动系统和方法

    公开(公告)号：US08728108B2

    公开(公告)日：2014-05-20

    申请号：US12944039

    申请日：2010-11-11

    申请人： Shawn X. Gao ,  Mark Alan Hopkins

    发明人： Shawn X. Gao ,  Mark Alan Hopkins

    IPC分类号： A61F9/00 ,  F16K31/36

    CPC分类号： A61F9/00736 ,  A61F2009/00874 ,  Y10T137/7761

    摘要： In various embodiments, a pneumatic system valve for a surgical console may be controlled by a controller configured to adjust a valve duty cycle (VDC) of the valve to reduce a difference between the valve's differential pressure and a desired differential pressure. In some embodiments, average differential pressures may be detected and relayed from a pressure sensor, coupled to one or more ports of the valve, to the controller. The controller may compare the measured average differential pressure against the desired average differential pressure (e.g., received from the user). The controller may then determine a modified VDC to reduce a difference between the desired average differential pressure and the measured average differential pressure. In some embodiments, the desired average differential pressure may be determined based on input received from a user of the surgical console.

    摘要翻译： 在各种实施例中，用于外科手术控制台的气动系统阀可以由构造成调节阀的阀占空比（VDC）的控制器控制，以减小阀的差压和期望的压差之间的差。 在一些实施例中，可以检测平均差压并从耦合到阀的一个或多个端口的压力传感器中继到控制器。 控制器可以将测得的平均差压与所需的平均差压（例如，从用户接收）进行比较。 然后，控制器可以确定改进的VDC以减小所需的平均差压和测得的平均压差之间的差。 在一些实施例中，可以基于从手术控制台的用户接收的输入来确定期望的平均差压。

    Peristaltic Pump and Cassette
    35.
    发明申请
    Peristaltic Pump and Cassette 审中-公开
    蠕动泵和纸盒

    公开(公告)号：US20110184374A1

    公开(公告)日：2011-07-28

    申请号：US12694572

    申请日：2010-01-27

    申请人： Shawn X. Gao ,  Brian W. McDonell

    发明人： Shawn X. Gao ,  Brian W. McDonell

    IPC分类号： A61M5/142 ,  F04B43/12

    CPC分类号： F04B43/1269 ,  A61M5/14232 ,  A61M2205/12

    摘要： A cassette for use with a peristaltic pump. The cassette having a body having an exterior. Additionally, the cassette has a sheet attached to the body forming at least one fluid channel. The fluid channel being generally arcuate and projecting outwardly from the exterior of the body. The fluid channel having at least one outlet port for receiving a liquid. Furthermore, the cassette has a liquid trap in fluid communication with and extending at least in part in an upward direction from the at least one outlet port.

    摘要翻译： 用于蠕动泵的盒式磁带。 该盒具有具有外部的主体。 此外，盒具有附接到主体的片材，形成至少一个流体通道。 流体通道大体上是弓形的并且从主体的外部向外突出。 流体通道具有用于接收液体的至少一个出口。 此外，盒具有与至少一个出口端口至少部分地沿向上方向流体连通并延伸的液体捕集器。

    System and method to zero chambers in a surgical cassette
    37.
    发明授权
    System and method to zero chambers in a surgical cassette 有权
    用于在外科手术盒中清除腔室的系统和方法

    公开(公告)号：US07764370B2

    公开(公告)日：2010-07-27

    申请号：US11479669

    申请日：2006-06-30

    申请人： David Lloyd Williams ,  Shawn X. Gao ,  David M. Domash ,  Nader Nazarifar

    发明人： David Lloyd Williams ,  Shawn X. Gao ,  David M. Domash ,  Nader Nazarifar

    IPC分类号： G01N1/10

    CPC分类号： G01F23/2927 ,  A61B50/10 ,  A61B50/13 ,  A61B90/06 ,  A61F9/00736 ,  G01F23/292 ,  G01F25/0061

    摘要： Embodiments of the present invention provide a system and method for determining the location of the bottom of a fluid chamber in a surgical cassette to calibrate the surgical system. According to one embodiment, the surgical cassette is shaped to allow light from a light source to pass unobstructed to a linear sensor array in an area that is a known distance from the bottom of a fluid chamber. Light rays intersected by solid cassette material, on the other hand, will insufficiently illuminate the linear sensor array. Because the slot is a known distance from the bottom of the chamber, the location of the bottom of the chamber can be determined by determining the transition between illuminated and insufficiently illuminated portions of the linear sensor array.

    摘要翻译： 本发明的实施例提供了一种用于确定手术盒中的流体室的底部的位置以校准外科系统的系统和方法。 根据一个实施例，手术盒被成形为允许来自光源的光在距离流体室的底部已知距离的区域内不受阻碍地传递到线性传感器阵列。 另一方面，由固体盒材料相交的光线将不足以照亮线性传感器阵列。 因为槽是从腔室的底部已知的距离，所以室的底部的位置可以通过确定线性传感器阵列的照明部分和不充分照射部分之间的转变来确定。