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1. 发明申请

US20190234727A1 CALCULATION OF REDUNDANT BEND IN MULTI-CORE FIBER FOR SAFETY 审中-公开
公开(公告)号：US20190234727A1
公开(公告)日：2019-08-01
申请号：US16315773
申请日：2017-06-22
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Patrick ROYE , Mark E. FROGGATT , Dawn K. GIFFORD
IPC分类号： G01B11/16 , G01B11/26 , B25J9/16 , A61B34/30 , A61B34/35
CPC分类号： G01B11/161 , A61B34/30 , A61B34/35 , A61B2034/2061 , A61B2034/301 , B25J9/1694 , G01B9/02004 , G01B11/26
摘要： A fiber includes M primary cores and N redundant cores, where M an integer is greater than two and N is an integer greater than one. Interferometric circuitry detects interferometric pattern data associated with the M primary cores and the N redundant cores when the optical fiber is placed into a sensing position. Data processing circuitry calculates a primary core fiber bend value for the M primary cores and a redundant core fiber bend value for the N redundant cores based on a predetermined geometry of the M primary cores and the N redundant cores in the fiber and detected interferometric pattern data associated with the M primary cores and the N redundant cores. The primary core fiber bend value and the redundant core fiber bend value are compared in a comparison. The detected data for the M primary cores is determined reliable or unreliable based on the comparison. A signal is generated in response to an unreliable determination.

2. 发明申请

US20180128599A1 FORCE SENSING IN A DISTAL REGION OF AN INSTRUMENT INCLUDING SINGLE-CORE OR MULTI-CORE OPTICAL FIBER 审中-公开
公开(公告)号：US20180128599A1
公开(公告)日：2018-05-10
申请号：US15572135
申请日：2016-05-12
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Dawn K. GIFFORD , Federico BARBAGLI , Samuel Y. CHANG , Anoop B. KOWSHIK , Oliver J. WAGNER , Michael D. PARIS , Mark E. FROGGATT
IPC分类号： G01B11/16 , A61B1/00 , G01L1/24 , G02B23/26 , G02B6/02 , G02B6/34
CPC分类号： G01B11/16 , A61B1/00096 , A61B1/00165 , G01L1/24 , G02B6/02042 , G02B6/022 , G02B6/34 , G02B23/26
摘要： An optical force sensor along with an optical processing apparatus and method are disclosed. The optical force sensor includes an optical fiber, a core included in the optical fiber, an instrument including the optical fiber, the instrument having a distal region, and a tubular structure encasing an end of the optical fiber and secured to the first conduit at the distal region of the instrument. When an optical interferometric system is coupled to the optical fiber, it processes reflected light from a portion of the core included within the tubular structure that does not include Bragg gratings to produce a measurement of a force present at the distal region of the instrument.

3. 发明申请

US20160054186A1 METHOD AND APPARATUS FOR OPTICAL STRAIN SENSING 审中-公开
标题翻译：光敏感测方法与装置
公开(公告)号：US20160054186A1
公开(公告)日：2016-02-25
申请号：US14932023
申请日：2015-11-04
申请人： Intuitive Surgical Operations, Inc.
发明人： Mark E. FROGGATT , Dawn K. GIFFORD
IPC分类号： G01L1/24 , G01D5/353
CPC分类号： G01L1/246 , G01D5/35306 , G01K11/3206
摘要： Mechanical parameters of an object subjected to a force or condition are measured. A curved portion of a multicore optical fiber is attached to the object, and the multicore optical fiber includes a center core and plural off-center cores. A distributed, optically-based sensing technique is used to obtain information at each of multiple points along the curved portion from multiple ones of the cores of the multicore optical fiber. A curvature associated with the fiber attached to the object is determined using the information obtained from multiple ones of the cores. Strain information is obtained for the center core without having to obtain strain information for the off-center cores. Mechanical parameters are determined based on the strain information obtained for the center core and the curvature information obtained from the multiple ones of the cores.
摘要翻译：测量受到力或条件的物体的机械参数。多芯光纤的弯曲部分附着在物体上，多芯光纤包括中心芯和多个偏心芯。使用分布式的基于光学的感测技术来获得来自多芯光纤的多个核心的沿弯曲部分的多个点的信息。使用从多个核心获得的信息确定与附接到对象的光纤相关联的曲率。对于中心芯获得应变信息，而不必获得偏心芯的应变信息。基于针对中心芯获得的应变信息和从多个芯获得的曲率信息来确定机械参数。

4. 发明申请

US20180113051A1 DISPERSION CORRECTION IN OPTICAL FREQUENCY-DOMAIN REFLECTOMETRY 审中-公开
公开(公告)号：US20180113051A1
公开(公告)日：2018-04-26
申请号：US15848415
申请日：2017-12-20
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Evan M. LALLY , Justin W. KLEIN , Mark E. FROGGATT , Emily E.H. TEMPLETON
IPC分类号： G01M11/00 , G01D5/353 , G01B9/02
CPC分类号： G01M11/3145 , G01B9/0207 , G01D5/35358 , G01D5/35393
摘要： An optical frequency domain reflectometry (OFDR) measurement is produced from an OFDR apparatus that includes a tunable laser source coupled to a sensing interferometer and a monitor interferometer. The sensing interferometer is also coupled to a waveguide, e.g., an optical sensing fiber. Sensor interferometric data obtained by the OFDR measurement is processed in the spectral domain (e.g., frequency) with one or more parameters to compensate for the optical dispersion associated with the sensing interferometer data. A Fourier Transform of the dispersion-compensated sensing interferometric data in the spectral domain is performed to provide a dispersion-compensated OFDR measurement information in the temporal (e.g., time) domain.

5. 发明申请

US20160258839A1 METHODS AND APPARATUS FOR MEASUREMENT OF MODAL CHARACTERISTICS OF MULTIMODE FIBER USING RAYLEIGH SCATTER 有权
标题翻译：使用RAYLEIGH SCATTER测量多模光纤的模态特性的方法和装置
公开(公告)号：US20160258839A1
公开(公告)日：2016-09-08
申请号：US14778195
申请日：2014-03-18
申请人： INTUITIVE SURGICAL OPERATIONS INC.
发明人： Mark E. FROGGATT
IPC分类号： G01M11/00
CPC分类号： G01M11/3172 , G02B6/0288
摘要： One or more modal characteristics are determined for a waveguide that supports more than two modes. In an example implementation, optical frequency domain reflectometry (OFDR) is used to couple light into the waveguide and detect Rayleigh scatter reflections associated with a segment of the waveguide. An original set of Rayleigh scatter data associated with the detected Rayleigh scatter reflections is generated. In addition, a scaled set of Rayleigh scatter data associated with the detected Rayleigh scatter reflections is generated. The original set of Rayleigh scatter data is correlated with the scaled set of Rayleigh scatter data. One or more modal characteristics of the waveguide are determined based on the correlation.
摘要翻译：为支持多于两种模式的波导确定一个或多个模态特性。在示例实施例中，使用光频域反射计（OFDR）将光耦合到波导中并检测与波导段相关联的瑞利散射反射。产生与检测到的瑞利散射反射相关联的原始瑞利散射数据集。此外，生成与检测到的瑞利散射反射相关联的缩放的瑞利散射数据集。瑞利散射数据的原始集合与缩放的瑞利散射数据集相关联。基于相关性来确定波导的一个或多个模态特性。

6. 发明申请

US20140224033A1 METHOD AND APPARATUS FOR OPTICAL STRAIN SENSING 审中-公开
标题翻译：光敏感测方法与装置
公开(公告)号：US20140224033A1
公开(公告)日：2014-08-14
申请号：US14256189
申请日：2014-04-18
申请人： Intuitive Surgical Operations, Inc.
发明人： Mark E. FROGGATT , Dawn K. Gifford
IPC分类号： G01L1/24
CPC分类号： G01L1/246 , G01D5/35306 , G01K11/3206
摘要： Mechanical parameters of an object subjected to a force or condition are measured. A curved portion of a multicore optical fiber is attached to the object, and the multicore optical fiber includes a center core and plural off-center cores. A distributed, optically-based sensing technique is used to obtain information at each of multiple points along the curved portion from multiple ones of the cores of the multicore optical fiber. A curvature associated with the fiber attached to the object is determined using the information obtained from multiple ones of the cores. Strain information is obtained for the center core without having to obtain strain information for the off-center cores. Mechanical parameters are determined based on the strain information obtained for the center core and the curvature information obtained from the multiple ones of the cores.
摘要翻译：测量受到力或条件的物体的机械参数。多芯光纤的弯曲部分附着在物体上，多芯光纤包括中心芯和多个偏心芯。使用分布式的基于光学的感测技术来获得来自多芯光纤的多个核心的沿弯曲部分的多个点的信息。使用从多个核心获得的信息确定与附接到对象的光纤相关联的曲率。对于中心芯获得应变信息，而不必获得偏心芯的应变信息。基于针对中心芯获得的应变信息和从多个芯获得的曲率信息来确定机械参数。

7. 发明申请

US20170370705A1 METHODS AND APPARATUS TO DETERMINE A TWIST PARAMETER AND/OR A BEND ANGLE ASSOCIATED WITH A MULTI-CORE FIBE 审中-公开
公开(公告)号：US20170370705A1
公开(公告)日：2017-12-28
申请号：US15698707
申请日：2017-09-08
申请人： Intuitive Surgical Operations, Inc.
发明人： Mark E. FROGGATT , Justin W. KLEIN , Dawn K. GIFFORD , Stephen Tod KREGER
IPC分类号： G01B11/24 , G01B11/16 , G01L1/24 , G02B6/02
CPC分类号： G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01L1/246 , G02B6/02042
摘要： A multi-core fiber includes multiple optical cores, and for each different core of a set of different cores of the multiple optical cores, a total change in optical length is detected. The total change in optical length represents an accumulation of all changes in optical length for multiple segments of that different core up to a point on the multi-core fiber. A difference is determined between the total changes in optical length for cores of the set of different cores. A twist parameter and/or a bend angle associated with the multi-core fiber at the point on the multi-core fiber is/are determined based on the difference.

8. 发明申请

US20170003119A9 OPTICAL POSITION AND/OR SHAPE SENSING 审中-公开
标题翻译：光学位置和/或形状感应
公开(公告)号：US20170003119A9
公开(公告)日：2017-01-05
申请号：US14326004
申请日：2014-07-08
申请人： Intuitive Surgical Operations, Inc.
发明人： Mark E. FROGGATT , Justin W. Klein , Dawn K. Gifford , Stephen Tod Kreger
IPC分类号： G01B11/24 , G01B11/16
CPC分类号： G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01L1/246 , G02B6/02042
摘要： An accurate measurement method and apparatus using an optical fiber are disclosed. A total change in optical length in an optical core in the optical fiber is determined that reflects an accumulation of all of the changes in optical length for multiple segment lengths of the optical core up to a point on the optical fiber. The total change in optical length in the optical core is provided for calculation of an average strain over a length of the optical core based on the detected total change in optical length.
摘要翻译：公开了一种使用光纤的精确测量方法和装置。确定光纤中的光纤中的光学长度的总变化，其反映光纤的多个段长度的所有光学长度变化的累积直到光纤上的一点。提供了光学核心中的光学长度的总变化，用于基于检测到的光学长度的总变化来计算光学核心长度上的平均应变。

9. 发明申请

US20160123715A1 AN OVERLAPPED CHIRPED FIBER BRAGG GRATING SENSING FIBER AND METHODS AND APPARATUS FOR PARAMETER MEASUREMENT USING SAME 有权
标题翻译：一种重叠的纤维光纤光栅传感光纤和使用相同参数测量的方法和装置
公开(公告)号：US20160123715A1
公开(公告)日：2016-05-05
申请号：US14897973
申请日：2014-06-10
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Mark E. FROGGATT , Justin W. KLEIN
IPC分类号： G01B9/02 , G02B6/02 , G01M11/00
CPC分类号： G01B9/02002 , G01B9/02004 , G01B9/02044 , G01B11/161 , G01B11/18 , G01D5/35316 , G01M11/3172 , G02B6/02042 , G02B6/02085 , G02B6/02114 , G02B6/02123 , G02B2006/02157
摘要： An optical sensor includes an optical fiber inscribed with a repeated refraction pattern such that light scattered from a location on the optical fiber is scattered at multiple frequencies in a range of frequencies. The inscribed patterns overlap at every measurement point along at least a portion of the length of the sensor. An optical sensing system including control circuitry coupled to the optical fiber detects measurement scatter data from the optical fiber over the range of frequencies, determines a change in the detected measurement scatter data over the range of frequencies, and extracts a parameter describing a state of the optical fiber from the determined change in the detected measurement scatter data. The sensor may be made by inscribing a first light refracting pattern on the optical fiber at every measurement point along at least a portion of the length of the sensor and inscribing a second light refracting pattern on the optical fiber that overlaps the first inscribed light refracting pattern at every measurement point along at least that portion of the length of the sensor.
摘要翻译：光学传感器包括内接有重复折射图案的光纤，使得从光纤上的位置散射的光在频率范围内以多个频率散射。刻印图案沿着传感器长度的至少一部分在每个测量点处重叠。包括耦合到光纤的控制电路的光学感测系统在频率范围内检测来自光纤的测量散射数据，确定在频率范围上检测到的测量散射数据的变化，并且提取描述光纤从检测到的测量散射数据中确定的变化。传感器可以通过沿着传感器的长度的至少一部分的每个测量点在光纤上刻上第一光折射图案并且在与第一内接光折射图案重叠的光纤上刻划第二光折射图案在每个测量点沿传感器长度的至少那部分。

10. 发明申请

US20180058838A1 METHOD AND APPARATUS FOR MOTION COMPENSATION IN INTERFEROMETRIC SENSING SYSTEMS 审中-公开
公开(公告)号：US20180058838A1
公开(公告)日：2018-03-01
申请号：US15793177
申请日：2017-10-25
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Mark E. FROGGATT , Alexander K. SANG , Dawn K. GIFFORD , Justin W. KLEIN
IPC分类号： G01B9/02 , G01L1/24 , G01D5/353 , G01B11/06
CPC分类号： G01B9/0207 , G01B9/02004 , G01B9/02069 , G01B9/02072 , G01B9/02076 , G01B9/02083 , G01B9/0209 , G01B11/0658 , G01B11/18 , G01D5/3537 , G01L1/242 , G01M11/3172
摘要： An optical interrogation system, e.g., an OFDR-based system, measures local changes of index of refraction of a sensing light guide subjected to a time-varying disturbance. Interferometric measurement signals detected for a length of the sensing light guide are transformed into the spectral domain. A time varying signal is determined from the transformed interferometric measurement data set. A compensating signal is determined from the time varying signal which is used to compensate the interferometric measurement data set for the time-varying disturbance. The compensation technique may be applied along the length of the light guide.

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