利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

26 条记录 (耗时 0.017 秒)

    OPTICAL FIBER SENSOR FOR SHAPE SENSING, OPTICAL SHAPE SENSING DEVICE, SYSTEM AND METHOD
    1.
    发明公开
    OPTICAL FIBER SENSOR FOR SHAPE SENSING, OPTICAL SHAPE SENSING DEVICE, SYSTEM AND METHOD 审中-公开

    公开(公告)号：EP3627095A1

    公开(公告)日：2020-03-25

    申请号：EP18195654.1

    申请日：2018-09-20

    申请人： Koninklijke Philips N.V.

    发明人： VAN DUSSCHOTEN, Anna Hendrika ,  'T HOOFT, Gert Wim ,  HORIKX, Jeroen Jan Lambertus

    IPC分类号： G01B11/16 ,  A61B5/06 ,  G01D5/353 ,  G02B6/02 ,  A61B34/20

    摘要： The present invention relates to an optical fiber sensor for shape sensing, comprising an optical fiber having embedded therein a number of at least four fiber cores (1 to 6) arranged at a distance from a longitudinal center axis (0) of the optical fiber, the number of fiber cores (1 to 6) including a first subset of at least two fiber cores (1, 3, 5) and a second subset of at least two fiber cores (2, 4, 6), the fiber cores (2, 4, 6) of the second subset being arranged to provide a redundancy in a shape sensing measurement of the fiber sensor (12'). The fiber cores (1, 3, 5) of the first subset are distributed in azimuthal direction around the center axis (0) with respect to one another, and each fiber core (2) of the second subset is arranged in non-equidistantly fashion in azimuthal direction around the center axis (0) with respect to two neighboring fiber cores (1, 3) of the first subset.

    OPTICAL SHAPE SENSING SYSTEM, MEDICAL APPARATUS AND METHOD FOR OPTICAL SHAPE SENSING
    2.
    发明公开
    OPTICAL SHAPE SENSING SYSTEM, MEDICAL APPARATUS AND METHOD FOR OPTICAL SHAPE SENSING 审中-公开
    光学形状传感系统，用于光学形状传感的医疗设备和方法

    公开(公告)号：EP3242621A1

    公开(公告)日：2017-11-15

    申请号：EP16700034.8

    申请日：2016-01-04

    申请人： Koninklijke Philips N.V.

    发明人： 'T HOOFT, Gert Wim ,  VAN SCHAIJK, Theodorus Thomas Marinus ,  HORIKX, Jeroen Jan Lambertus

    IPC分类号： A61B34/20 ,  G01B11/16 ,  G01B11/24

    CPC分类号： A61B34/20 ,  A61B2034/2061 ,  G01B11/161 ,  G01B11/18 ,  G01L1/246

    摘要： The present invention relates to an optical shape sensing system for sensing a shape of a medical device (24), comprising an input polarization controller (12) for setting an input polarization state of an input light signal, at least one interferometer unit (18) for dividing said polarized input light signal into a device signal and a reference signal, guiding said device signal to be scattered within an optical fiber (19) inserted into said device (24) and coupling said scattered device signal with said reference signal to form an output light signal, and at least one measurement branch (39) comprising an output polarization controller arrangement (26) for setting an output polarization state of said output light signal, a polarizing beam splitter (30) for splitting said polarized output light signal into two signal portions, each being in a corresponding one of two signal portion polarization states, and a detector arrangement (35) comprising two detectors (32, 34), each for detecting a corresponding one of said two signal portions, wherein said input polarization controller (12) is configured to set two pairs of input polarization states, or said output polarization controller arrangement (26) is configured to set two output polarization states each for enabling a corresponding one of two pairs of signal portion polarization states, wherein each pair of input or signal portion polarization states are representable by a corresponding one of two axes in a Poincaré sphere different from each other.

    AN OPTICAL FREQUENCY DOMAIN REFLECTOMETRY (OFDR) SYSTEM
    3.
    发明公开
    AN OPTICAL FREQUENCY DOMAIN REFLECTOMETRY (OFDR) SYSTEM 有权
    OFDR系统

    公开(公告)号：EP2907249A1

    公开(公告)日：2015-08-19

    申请号：EP13770412.8

    申请日：2013-09-16

    申请人： Koninklijke Philips N.V.

    发明人： HORIKX, Jeroen Jan Lambertus ,  'T HOOFT, Gert Wim ,  MARELL, Milan Jan Henri

    IPC分类号： H04B10/071 ,  G01M11/00

    CPC分类号： H04B10/071 ,  G01M11/3172 ,  G01M11/3181 ,  H04B10/25

    摘要： There is presented an optical frequency domain reflectometry (OFDR) system (100) comprising a first coupling point (15) arranged for splitting radiation into two parts, so that radiation may be emitted into a reference path (16) and a measurement path (17). The system further comprises an optical detection unit (30) capable of obtaining a signal from the combined optical radiation from the reference path and the measurement path via a second coupling point (25). The measurement path (17) comprises a polarization dependent optical path length shifter (PDOPS, PDFS, 10), which may create a first polarization (PI) and a second polarization (P2) for the radiation in the measurement path, where the optical path length is different for the first and second polarizations in the measurement path. This may be advantageous for obtaining an improved optical frequency domain reflectometry (OFDR) system where e.g. the two measurements for input polarizations may be performed in the same scan of a radiation source.

    OPTICAL SHAPE SENSING FIBER FOR TIP AND SHAPE CHARACTERIZATION OF MEDICAL INSTRUMENTS
    4.
    发明公开
    OPTICAL SHAPE SENSING FIBER FOR TIP AND SHAPE CHARACTERIZATION OF MEDICAL INSTRUMENTS 审中-公开
    FORMSPEICHERNDE GLASFASER ZUR SPITZEN- UND FORMCHARAKTERISIERUNG MEDISINISCHER INSTRUMENTE

    公开(公告)号：EP2667816A2

    公开(公告)日：2013-12-04

    申请号：EP12703891.7

    申请日：2012-01-25

    申请人： Koninklijke Philips N.V.

    发明人： CHAN, Raymond ,  MANZKE, Robert ,  POPOVIC, Aleksandra ,  'T HOOFT, Gert Wim ,  VON BUSCH, Heinrich

    IPC分类号： A61B19/00 ,  G01B11/16

    CPC分类号： A61B5/061 ,  A61B34/20 ,  A61B34/30 ,  A61B2034/2061 ,  G01B11/18 ,  G01D5/35345

    摘要： A shape sensing device, system and method include an interventional instrument (102) having regions of articulation to be configured to change shape during an interventional procedure. An optical fiber (202) is disposed on or about the areas of articulation in a pattern to provide an optical signal indicating an instantaneous change or current position or orientation of the instrument. A signal interpretation module (115) is configured to receive the optical signals and interpret the instantaneous change or current position or orientation of the instrument.

    摘要翻译： 形状感测装置，系统和方法包括具有关节的区域的介入器具（102），以配置成在介入过程期间改变形状。 光纤（202）以图案布置在关节的区域上或周围，以提供指示仪器的瞬时变化或当前位置或取向的光信号。 信号解释模块（115）被配置为接收光信号并解释仪器的瞬时变化或趋势位置或取向。

    OPTICAL FIBER SENSOR, OPTICAL SYSTEM AND METHOD OF OPTICALLY INTERROGATING AN OPTICAL FIBER SENSOR
    6.
    发明公开
    OPTICAL FIBER SENSOR, OPTICAL SYSTEM AND METHOD OF OPTICALLY INTERROGATING AN OPTICAL FIBER SENSOR 审中-公开

    公开(公告)号：EP4239381A2

    公开(公告)日：2023-09-06

    申请号：EP23180664.7

    申请日：2019-10-30

    申请人： Koninklijke Philips N.V.

    发明人： 'T HOOFT, Gert Wim ,  VAN PUTTEN, Eibert Gerjan ,  HORIKX, Jeroen Jan Lambertus ,  VAN DUSSCHOTEN, Anna Hendrika

    IPC分类号： G02B6/02

    摘要： The present invention relates to an optical fiber sensor, comprising an optical fiber having embedded therein at least one fiber core (14, 16, 18, 20) extending along a length of the optical fiber, the at least one fiber core having a plurality of single fiber Bragg gratings (40, 42, 44) arranged in series along the at least one fiber core (14, 16, 18, 20), wherein each fiber Bragg grating (40, 42, 44) has a single reflection spectrum around a single reflection peak wavelength when interrogated with light in an unstrained state of the at least one fiber core (14, 16, 18, 20), wherein the reflection peak wavelengths of the single reflection spectra are different from fiber Bragg grating (40, 42, 44) to fiber Bragg grating (40, 42, 44) along the at least one fiber core. Also described is an optical system and a method of interrogating an optical fiber sensor.

    OPTICAL SHAPE SENSING SYSTEM AND METHOD
    8.
    发明公开
    OPTICAL SHAPE SENSING SYSTEM AND METHOD 审中-公开

    公开(公告)号：EP3627096A1

    公开(公告)日：2020-03-25

    申请号：EP18195663.2

    申请日：2018-09-20

    申请人： Koninklijke Philips N.V.

    发明人： VAN DUSSCHOTEN, Anna Hendrika ,  'T HOOFT, Gert Wim ,  HORIKX, Jeroen Jan Lambertus

    IPC分类号： G01B11/16 ,  A61B5/06 ,  G01D5/353 ,  G02B6/02 ,  A61B34/20

    摘要： The present invention relates to an optical shape sensing system, comprising an optical fiber sensor comprising an optical fiber having embedded therein a number of at least four fiber cores (1 to 6) arranged spaced apart from a longitudinal center axis (0) of the optical fiber, the fiber cores each having a resonance wavelength in response to light introduced into the fiber cores (1 to 6) in an unstrained state thereof. The system further comprises an optical interrogation unit (21) configured to interrogate the fiber cores (1 to 6) with light in a scan wavelength range including the resonance wavelengths of the fiber cores in an unstrained state of the fiber cores (1 to 6). The scan wavelength range is set such that a center wavelength of the scan wavelength range is decentered with respect to the resonance wavelength of at least one of the fiber cores (1 to 6).