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公开(公告)号：US10545283B2
公开(公告)日：2020-01-28
申请号：US16099763
申请日：2017-04-26
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Dawn K. Gifford , Jeffrey T. Lacroix , Patrick Roye , Alexander K. Sang
Abstract: An optical fiber includes multiple optical cores configured in the fiber including a set of primary cores and an auxiliary core. An interferometric measurement system uses measurements from the multiple primary cores to predict a response from the auxiliary core. The predicted auxiliary core response is compared with the actual auxiliary core response to determine if they differ by more than a predetermined amount, in which case the measurements from the multiple primary cores may be deemed unreliable.
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42.发明授权公开(公告)号：US10378883B2
公开(公告)日：2019-08-13
申请号：US15572135
申请日：2016-05-12
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Dawn K. Gifford , Federico Barbagli , Samuel Y. Chang , Anoop B. Kowshik , Oliver J. Wagner , Michael D. Paris , Mark E. Froggatt
Abstract: 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.
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公开(公告)号：US20170003119A9
公开(公告)日：2017-01-05
申请号：US14326004
申请日：2014-07-08
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. FROGGATT , Justin W. Klein , Dawn K. Gifford , Stephen Tod Kreger
CPC classification number: G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01L1/246 , G02B6/02042
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US12235138B2
公开(公告)日：2025-02-25
申请号：US18348238
申请日：2023-07-06
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Dawn K. Gifford , Alexander K. Sang
Abstract: An optical fiber with one or more microgratings is disclosed. Methods and apparatus are described for making an optical fiber with one or more microgratings. Methods and apparatus are described for an optical fiber with one or more microgratings. Optical sensing methods and an optical sensing system effectively decouple strain range from the laser tuning range, permit the use of a smaller tuning range without sacrificing strain range, and compensate for ambiguity in phase measurements normally associated with smaller tuning ranges.
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45.发明授权公开(公告)号：US11828586B2
公开(公告)日：2023-11-28
申请号：US17894718
申请日：2022-08-24
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
CPC classification number: G01B11/24 , G01B11/16 , G01B11/168 , G01B11/18 , G01L1/242 , G01M11/025 , G01M11/31 , G01M11/3172 , G01M11/3181 , G01L1/246 , G02B6/02042
Abstract: 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.
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Patent Agency Ranking
46.发明申请公开(公告)号：US20220404144A1
公开(公告)日：2022-12-22
申请号：US17894718
申请日：2022-08-24
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T. Kreger
Abstract: 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.
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47.发明授权公开(公告)号：US11313674B2
公开(公告)日：2022-04-26
申请号：US17115694
申请日：2020-12-08
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Dawn K. Gifford , Federico Barbagli , Samuel Chang , Anoop B. Kowshik , Oliver Wagner , Michael Paris , Mark E. Froggatt
Abstract: 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.
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公开(公告)号：US11193751B2
公开(公告)日：2021-12-07
申请号：US16044559
申请日：2018-07-25
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Alexander K. Sang , Dawn K. Gifford , Justin W. Klein
Abstract: Interferometric measurement signals are detected by a single optical interferometric interrogator for a length of a sensing light guide and an interferometric measurement data set corresponding to the interferometric measurement signals is generated. The interferometric measurement data set is transformed into a spectral domain to produce a transformed interferometric measurement data set. The transformed interferometric measurement data set is compared to a baseline interferometric data set to identify a time-varying signal corresponding to a time-varying disturbance. The baseline interferometric data set is representative of the sensing light guide not being subjected to the time-varying disturbance. A compensating signal is determined from the time-varying signal and used to compensate at least a portion of the interferometric measurement data set for the time-varying disturbance as part of producing a measurement of the parameter.
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公开(公告)号：US20210187752A1
公开(公告)日：2021-06-24
申请号：US17184357
申请日：2021-02-24
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Patrick Roye , Mark E. Froggatt , Dawn K. Gifford
Abstract: 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.
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50.发明授权公开(公告)号：US10739129B2
公开(公告)日：2020-08-11
申请号：US16723824
申请日：2019-12-20
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Justin W. Klein , Dawn K. Gifford , Stephen T Kreger
Abstract: 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.
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