-
公开(公告)号：US20190249982A1
公开(公告)日：2019-08-15
申请号：US16333752
申请日：2017-08-16
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Mark FROGGATT , Eric SANBORN , Alexander K. SANG
CPC classification number: G01B11/161 , G01B9/02049 , G01B2290/70 , G01D5/35306 , G02B5/04 , G02B6/02 , G02B27/283 , G02B27/30
Abstract: Example embodiments include an optical assembly for an optical interrogation system having a single core or a multicore sensing fiber, a measurement fiber to couple light into the sensing fiber, and a reference fiber arranged with the measurement fiber as part of an optical interferometer. A beam splitter combines light from the sensing fiber and with light from the reference fiber. A polarization beam splitting prism separates the combined light into first polarized light and second polarized light that is orthogonal to the first polarized light. The optical assembly can substantially reduce the size, complexity, or cost associated with the traditional optical components in an optical interrogation system that it replaces. Other example optical assemblies are described. Embodiments describe optical interrogation systems using the example optical assemblies.
-
公开(公告)号：US20180064500A1
公开(公告)日：2018-03-08
申请号：US15670310
申请日：2017-08-07
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Mark FROGGATT , Eric SANBORN , Alexander K. SANG , Matthew S. WOLFE
CPC classification number: A61B34/76 , A61B34/70 , A61B90/06 , A61B2090/064 , A61B2090/067 , G01L1/242 , G02B6/02042
Abstract: A hinged tool includes a first member; a second member pivotally connected to the first member at a pivot; and an optical fiber. The optical fiber is fixed to the first member at a load application region and fixed to at least one of the pivot and the second member at a location such that the optical fiber bends when the first member and the second member are pivoted with respect to one another. A method of using a hinged tool includes measuring fiber strain in an optical fiber fixed to the hinged tool, and determining at least one of tool strain applied to the hinged tool and a degree of pivoting of the hinged tool using the fiber strain.
-
公开(公告)号：US20170370704A1
公开(公告)日：2017-12-28
申请号：US15520950
申请日：2015-12-07
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Mark FROGGATT , Dawn K. GIFFORD , Stephen T. KREGER , Alexander K. SANG , Jeffrey T. LACROIX , Eric E. SANBORN
CPC classification number: G01B11/161 , G01B11/18 , G01B21/042 , G01D5/344 , G01D5/35316 , G01D5/35354 , G01K11/3206 , G01L1/242 , G01M11/3172 , G01M11/3181 , G02B6/02042 , G02B6/02057
Abstract: An optical fiber includes multiple optical waveguides configured in the fiber. An interferometric measurement system mitigates or compensates for the errors imposed by differences in a shape sensing optical fiber's response to temperature and strain. A 3-D shape and/or position are calculated from a set of distributed strain measurements acquired for a multi-core optical shape sensing fiber that compensates for these non-linear errors using one or more additional cores in the multicore fiber that react differently to temperature changes than the existing cores.
-
Patent Agency Ranking
公开(公告)号：US20180058838A1
公开(公告)日：2018-03-01
申请号：US15793177
申请日：2017-10-25
Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
Inventor： Mark E. FROGGATT , Alexander K. SANG , Dawn K. GIFFORD , Justin W. KLEIN
CPC classification number: G01B9/0207 , G01B9/02004 , G01B9/02069 , G01B9/02072 , G01B9/02076 , G01B9/02083 , G01B9/0209 , G01B11/0658 , G01B11/18 , G01D5/3537 , G01L1/242 , G01M11/3172
Abstract: 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.
-
5.发明申请公开(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。
-
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
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.
-
公开(公告)号：US20190094459A1
公开(公告)日：2019-03-28
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.
-
公开(公告)号：US20180356203A1
公开(公告)日：2018-12-13
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
CPC classification number: G01B9/0207 , G01B9/02004 , G01B9/02069 , G01B9/02072 , G01B9/02076 , G01B9/02083 , G01B9/0209 , G01B11/0658 , G01B11/18 , G01D5/3537 , G01L1/242 , G01M11/3172
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.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.017 seconds)
