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

IPC: G01B11/16 ,  G01B9/02 ,  G01D5/353 ,  G02B27/28 ,  G02B27/30 ,  G02B5/04 ,  G02B6/02

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：US20180172920A1

公开(公告)日：2018-06-21

申请号：US15524388

申请日：2016-03-24

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Mark FROGGATT ,  Eric SANBORN ,  Jeffrey LACROIX

IPC: G02B6/38 ,  G02B6/02 ,  G01B11/27 ,  G01M11/00

CPC classification number: G02B6/3843 ,  G01B11/272 ,  G01M11/3172 ,  G02B6/02042 ,  G02B6/02076 ,  G02B6/3877 ,  G02B6/3881

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.

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

IPC: A61B34/00 ,  G02B6/02 ,  G01L1/24

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

IPC: G01B11/16 ,  G01M11/00 ,  G01B21/04 ,  G01D5/353 ,  G01D5/34 ,  G02B6/02 ,  G01K11/32

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.

公开(公告)号：US20170322113A1

公开(公告)日：2017-11-09

申请号：US15528911

申请日：2016-04-01

Applicant: INTUITIVE SURGICAL OPERATIONS, INC.

Inventor： Dawn K. GIFFORD ,  Mark FROGGATT ,  Patrick ROYE ,  Jeffrey LACROIX

IPC: G01M11/00

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.