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公开(公告)号：US11624870B2
公开(公告)日：2023-04-11
申请号：US17203701
申请日：2021-03-16
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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2.发明申请公开(公告)号：US20200378866A1
公开(公告)日：2020-12-03
申请号：US16900643
申请日：2020-06-12
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Dawn K. Gifford , Mark E. Froggatt , Patrick Roye , Jeffrey T. LaCroix
Abstract: A system and method are used for an optical fiber having a core multiple, closely-spaced optical gratings written along the core that create a repeated pattern in the core. A memory stores predetermined reference reflection data and measurement reflection data determined for a length of the core detected from interferometric patterns corresponding to scatter reflections received from the core. Data processing circuitry reduces or removes from the measurement reflection data information that corresponds to reflections due to the repeated pattern in the core to produce filtered measurement data. One or more portions of the filtered measurement data is/are correlated with one or more portions of the reference reflection data to produce multiple correlation values. The greatest of the multiple correlation values is determined, and a location along the fiber corresponding to the greatest correlation value is identified.
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公开(公告)号：US20190391341A1
公开(公告)日：2019-12-26
申请号：US16538555
申请日：2019-08-12
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Eric E. Sanborn , Jeffrey T. LaCroix
Abstract: The ends of sensing and interrogating multicore fibers are brought into proximity for connection in a first orientation with one or more cores in the sensing fiber being paired up with corresponding one or more cores in the interrogating fiber. Optical interferometry is used to interrogate at least one core pair and to determine a first reflection value that represents a degree of alignment for the core pair in the first orientation. The relative position is adjusted between the ends of the fibers to a second orientation. Interferometry is used to interrogate the core pair and determine a second reflection value that represents a degree of alignment for the core pair in the second orientation. The first reflection value is compared with the second reflection value, and an aligned orientation is identified for connecting the sensing and interrogating fibers based on the comparison.
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公开(公告)号：US20190250050A1
公开(公告)日：2019-08-15
申请号：US16342524
申请日：2017-10-20
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Eric E. Sanborn , Mark E. Froggatt , Dawn K. Gifford , Jeffrey T. LaCroix , Patrick Roye , Alexander K. Sang
Abstract: Shape sensing with a multi-core fiber can achieve high accuracy as well as accommodate small bend radii by measuring signals with peripheral waveguide cores placed at multiple different radial distances from the center axis of the fiber, and computing strain metrics from signals of cores selected based on the respective radial distances and a determination of whether the waveguide cores have strained out of range.
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公开(公告)号：US10983268B2
公开(公告)日：2021-04-20
申请号：US16709341
申请日：2019-12-10
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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Patent Agency Ranking
公开(公告)号：US10823627B2
公开(公告)日：2020-11-03
申请号：US16342524
申请日：2017-10-20
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Eric E. Sanborn , Mark E. Froggatt , Dawn K. Gifford , Jeffrey T. LaCroix , Patrick Roye , Alexander K. Sang
Abstract: Shape sensing with a multi-core fiber can achieve high accuracy as well as accommodate small bend radii by measuring signals with peripheral waveguide cores placed at multiple different radial distances from the center axis of the fiber, and computing strain metrics from signals of cores selected based on the respective radial distances and a determination of whether the waveguide cores have strained out of range.
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公开(公告)号：US10739529B2
公开(公告)日：2020-08-11
申请号：US16538555
申请日：2019-08-12
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Eric E. Sanborn , Jeffrey T. LaCroix
Abstract: The ends of sensing and interrogating multicore fibers are brought into proximity for connection in a first orientation with one or more cores in the sensing fiber being paired up with corresponding one or more cores in the interrogating fiber. Optical interferometry is used to interrogate at least one core pair and to determine a first reflection value that represents a degree of alignment for the core pair in the first orientation. The relative position is adjusted between the ends of the fibers to a second orientation. Interferometry is used to interrogate the core pair and determine a second reflection value that represents a degree of alignment for the core pair in the second orientation. The first reflection value is compared with the second reflection value, and an aligned orientation is identified for connecting the sensing and interrogating fibers based on the comparison.
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公开(公告)号：US20230204852A1
公开(公告)日：2023-06-29
申请号：US18115736
申请日：2023-02-28
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Mark E. Froggatt , Dawn K. Gifford , Jeffrey T. LaCroix , Patrick Roye , Alexander K. Sang
CPC classification number: G02B6/02042 , G01D5/3538 , G02B6/02 , G01D5/35393 , G01B11/161 , G01B21/042 , G01D5/35303
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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公开(公告)号：US20210199884A1
公开(公告)日：2021-07-01
申请号：US17203701
申请日：2021-03-16
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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10.发明授权公开(公告)号：US10908047B2
公开(公告)日：2021-02-02
申请号：US16900643
申请日：2020-06-12
Applicant: Intuitive Surgical Operations, Inc.
Inventor： Dawn K. Gifford , Mark E. Froggatt , Patrick Roye , Jeffrey T. LaCroix
Abstract: A system and method are used for an optical fiber having a core multiple, closely-spaced optical gratings written along the core that create a repeated pattern in the core. A memory stores predetermined reference reflection data and measurement reflection data determined for a length of the core detected from interferometric patterns corresponding to scatter reflections received from the core. Data processing circuitry reduces or removes from the measurement reflection data information that corresponds to reflections due to the repeated pattern in the core to produce filtered measurement data. One or more portions of the filtered measurement data is/are correlated with one or more portions of the reference reflection data to produce multiple correlation values. The greatest of the multiple correlation values is determined, and a location along the fiber corresponding to the greatest correlation value is identified.
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