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公开(公告)号：US20110295293A1
公开(公告)日：2011-12-01
申请号：US12788609
申请日：2010-05-27
申请人： Daryush Agahi
发明人： Daryush Agahi
IPC分类号： A61B17/32
CPC分类号： A61B19/0248 , A61B50/10 , A61B50/13 , A61B2017/00154 , A61B2017/00544 , A61F9/00763
摘要： A surgical system having feedback control for pneumatic actuators includes a pneumatic pressure source and a vitrectomy cutter having a cutting mechanism, a first pneumatic input port, and a second pneumatic input port. A pneumatic actuator is configured to direct pneumatic pressure to one of the first and second pneumatic input ports. A first pressure transducer is located and configured to detect actual pressure at the first pneumatic input port, and a second pressure transducer is located and configured to detect actual pressure at the second pneumatic input port. A controller communicates with the first and second pressure transducers and the pneumatic actuator. It is configured to change the pneumatic actuator actuation timing based on the data communicated from the first and second pressure transducers.
摘要翻译： 具有用于气动致动器的反馈控制的手术系统包括气动压力源和具有切割机构，第一气动输入端口和第二气动输入端口的玻璃体切割切割器。 气动致动器构造成将气动压力引导到第一和第二气动输入端口中的一个。 第一压力传感器被定位和配置为检测第一气动输入端口处的实际压力，并且第二压力传感器被定位和构造成检测第二气动输入端口处的实际压力。 控制器与第一和第二压力传感器和气动致动器通信。 它被配置为基于从第一和第二压力传感器传送的数据来改变气动致动器致动定时。
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公开(公告)号：US20090013780A1
公开(公告)日：2009-01-15
申请号：US11955669
申请日：2007-12-13
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。
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公开(公告)号：US08666556B2
公开(公告)日：2014-03-04
申请号：US12634870
申请日：2009-12-10
申请人： Daryush Agahi
发明人： Daryush Agahi
CPC分类号： G05B13/0205 , Y10T137/7759
摘要： In some embodiments, a method of using feedforward to control a system component may include determining if a feedforward term exists in a feedforward table for a received operating set point. If a feedforward term does not exist, the system component may be incremented until the system is within a first acceptable tolerance of the desired set point. In some embodiments, a measure of steady state error may be determined and compared to a second acceptable tolerance. If within the acceptable tolerance, the corresponding feedforward term may be recorded in the feedforward table. In some embodiments, if the feedforward term exists for the operating set point, the system component may be controlled using controller output that corresponds to the feedforward term. When a change to the system is detected that is associated with possible changes to the feedforward values, new feedforward values may be generated for the feedforward table.
摘要翻译： 在一些实施例中，使用前馈来控制系统组件的方法可以包括确定在接收到的操作设定点的前馈表中是否存在前馈项。 如果前馈术语不存在，则可以递增系统组件，直到系统处于所需设定点的第一可接受公差之内。 在一些实施例中，可以确定稳态误差的量度并将其与第二可接受公差进行比较。 如果在可接受的公差范围内，相应的前馈项可以记录在前馈表中。 在一些实施例中，如果对于操作设定点存在前馈项，则可以使用对应于前馈项的控制器输出来控制系统组件。 当检测到与前馈值的可能变化相关联的对系统的更改时，可以为前馈表生成新的前馈值。
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公开(公告)号：US08821524B2
公开(公告)日：2014-09-02
申请号：US12788609
申请日：2010-05-27
申请人： Daryush Agahi
发明人： Daryush Agahi
CPC分类号： A61B19/0248 , A61B50/10 , A61B50/13 , A61B2017/00154 , A61B2017/00544 , A61F9/00763
摘要： A surgical system having feedback control for pneumatic actuators includes a pneumatic pressure source and a vitrectomy cutter having a cutting mechanism, a first pneumatic input port, and a second pneumatic input port. A pneumatic actuator is configured to direct pneumatic pressure to one of the first and second pneumatic input ports. A first pressure transducer is located and configured to detect actual pressure at the first pneumatic input port, and a second pressure transducer is located and configured to detect actual pressure at the second pneumatic input port. A controller communicates with the first and second pressure transducers and the pneumatic actuator. It is configured to change the pneumatic actuator actuation timing based on the data communicated from the first and second pressure transducers.
摘要翻译： 具有用于气动致动器的反馈控制的手术系统包括气动压力源和具有切割机构，第一气动输入端口和第二气动输入端口的玻璃体切割切割器。 气动致动器构造成将气动压力引导到第一和第二气动输入端口中的一个。 第一压力传感器被定位和配置为检测第一气动输入端口处的实际压力，并且第二压力传感器被定位和构造成检测第二气动输入端口处的实际压力。 控制器与第一和第二压力传感器和气动致动器通信。 它被配置为基于从第一和第二压力传感器传送的数据来改变气动致动器致动定时。
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公开(公告)号：US20110144813A1
公开(公告)日：2011-06-16
申请号：US12634870
申请日：2009-12-10
申请人： Daryush Agahi
发明人： Daryush Agahi
CPC分类号： G05B13/0205 , Y10T137/7759
摘要： In some embodiments, a method of using feedforward to control a system component may include determining if a feedforward term exists in a feedforward table for a received operating set point. If a feedforward term does not exist, the system component may be incremented until the system to within a first acceptable tolerance of the desired set point. In some embodiments, a measure of steady state error may be determined and compared to a second acceptable tolerance. If within the acceptable tolerance, the corresponding feedforward term may be recorded in the feedforward table. In some embodiments, if the feedforward term exists for the operating set point, the system component may be controlled using controller output that corresponds to the feedforward term. When a change to the system is detected that is associated with possible changes to the feedforward values, new feedforward values may be generated for the feedforward table.
摘要翻译： 在一些实施例中，使用前馈来控制系统组件的方法可以包括确定在接收到的操作设定点的前馈表中是否存在前馈项。 如果前馈术语不存在，则系统组件可以递增，直到系统处于所需设定点的第一可接受公差之内。 在一些实施例中，可以确定稳态误差的量度并将其与第二可接受公差进行比较。 如果在可接受的公差范围内，相应的前馈项可以记录在前馈表中。 在一些实施例中，如果对于操作设定点存在前馈项，则可以使用对应于前馈项的控制器输出来控制系统组件。 当检测到与前馈值的可能变化相关联的对系统的更改时，可以为前馈表生成新的前馈值。
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公开(公告)号：US07872746B2
公开(公告)日：2011-01-18
申请号：US11955669
申请日：2007-12-13
IPC分类号： G01N1/10 , G01N23/10 , 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。
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