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    DISTRIBUTED PRESSURE MEASUREMENT BY EMBEDDED FIBER OPTIC STRAIN SENSOR
    2.
    发明申请
    DISTRIBUTED PRESSURE MEASUREMENT BY EMBEDDED FIBER OPTIC STRAIN SENSOR 有权
    嵌入式光纤应变传感器的分布式压力测量

    公开(公告)号：US20150114130A1

    公开(公告)日：2015-04-30

    申请号：US14524114

    申请日：2014-10-27

    Applicant: Intuitive Surgical Operations, Inc.

    Inventor： Matthew M. WHITE ,  Eric E. SANBORN ,  Matthew A. CASTELLUCCI ,  Emily E.H. TEMPLETON ,  Naman GARG ,  Nur Aida Abdul RAHIM ,  John J. KUTZ ,  Alexander K. SANG

    IPC: G01B11/16

    CPC classification number: G01L11/025 ,  G01L1/246

    Abstract: A pressure sensing pad includes a flexible planar layer having a two-dimensional sensing area, and an optical fiber embedded in the plane of the flexible planar layer traversing the two-dimensional sensing area in a particular configuration. At least one end of the fiber optic strain sensor has a connector that is connectable to an interferometric-based fiber optic interrogation and processing system. When the connector is connected to the an interferometric-based fiber optic interrogation and processing system and pressure is applied to the pressure sensing pad, a signal from the optical fiber is provided to and processed by the interferometric-based fiber optic interrogation and processing system to determine a two-dimensional pressure map for the two-dimensional sensing area.

    Abstract translation: 压力感测垫包括具有二维感测区域的柔性平面层，以及嵌入在穿过特定构造的二维感测区域的柔性平面层的平面中的光纤。 光纤应变传感器的至少一端具有可连接到基于干涉仪的光纤询问和处理系统的连接器。 当连接器连接到基于干涉仪的光纤询问和处理系统并且压力被施加到压力感测垫时，来自光纤的信号被提供给基于干涉的光纤询问和处理系统并由其进行处理 确定二维感测区域的二维压力图。

    METHODS AND APPARATUS FOR CALIBRATION FOR A FIBER OPTIC SHAPE SENSOR
    3.
    发明申请
    METHODS AND APPARATUS FOR CALIBRATION FOR A FIBER OPTIC SHAPE SENSOR 审中-公开

    公开(公告)号：US20190234726A1

    公开(公告)日：2019-08-01

    申请号：US16307269

    申请日：2017-05-25

    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

    Inventor： Dawn K. GIFFORD ,  Mark E. FROGGATT ,  Jeffrey T. LACROIX ,  Eric E. SANBORN ,  Alexander K. SANG

    IPC: G01B11/16 ,  G01B11/26

    Abstract: An interferometric measurement system measures a spun optical fiber sensor that includes multiple optical cores configured in the fiber sensor. A calibration machine includes a calibration fixture having known dimensions, one or more automatically controllable actuators for wrapping the fiber sensor starting at one end of the fiber sensor onto a calibration fixture having known dimensions, and an actuator controller configured to control the one or more actuators with actuator control signals. Interferometric detection circuitry, coupled to the actuator controller and to the other end of the fiber sensor, detects measured interferometric pattern data associated with each of the multiple cores when the fiber sensor is wrapped onto the calibration fixture. Data processing circuitry determines compensation parameters that compensate for variations between an optimal configuration of the multiple cores and an actual configuration of the multiple cores in the fiber sensor based on the detected measured interferometric pattern data. The compensation parameters compensate subsequently-obtained measurement interferometric pattern data for the fiber sensor.

    APPARATUS AND METHOD FOR GENERATING 3-D DATA FOR AN ANATOMICAL TARGET USING OPTICAL FIBER SHAPE SENSING
    4.
    发明申请
    APPARATUS AND METHOD FOR GENERATING 3-D DATA FOR AN ANATOMICAL TARGET USING OPTICAL FIBER SHAPE SENSING 审中-公开

    公开(公告)号：US20180245907A1

    公开(公告)日：2018-08-30

    申请号：US15757436

    申请日：2016-12-08

    Applicant: Intuitive Surgical Operations, Inc.

    Inventor： Mark E. FROGGATT ,  Eric E. SANBORN ,  Federico BARBAGLI

    IPC: G01B9/02 ,  A61B5/00 ,  A61B5/026

    CPC classification number: G01B9/0209 ,  A61B3/102 ,  A61B3/107 ,  A61B5/0066 ,  A61B5/0261 ,  A61B5/061 ,  A61B5/1072 ,  A61B5/1076 ,  A61B5/1459 ,  G01M11/3172

    Abstract: A fiber housing includes multiple shape sensing cores and a single optical core. A distal end of the fiber housing is positionable to direct the single optical core to a current point of an anatomical target. Collimated light over a first range of frequencies is projected from the single optical core to the current point. OFDR is used to detect reflected light scattered from the current point and to process the detected light to determine a distance to the current point. Light over a second range of frequencies is projected through the multiple shape sensing optical cores to the distal end of the fiber housing. OFDR is used to measure light reflected from the distal end of the fiber housing back through the multiple shape sensing optical cores and to process the measurement to determine a position in three dimensional space of the distal end of the fiber housing and a pointing direction of the distal end of the fiber housing. A position in three dimensional space of the current point is determined based on the determined position in three dimensional space of the distal end of the fiber housing, the pointing direction of the distal end of the fiber housing, and the determined distance.

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