公开(公告)号：WO2021256921A1

公开(公告)日：2021-12-23

申请号：PCT/NL2021/050374

申请日：2021-06-14

Applicant: TECHNISCHE UNIVERSITEIT EINDHOVEN

Inventor： VAN DEN BOOM, Henricus Petrus Anna ,  KOONEN, Antonius Marcellus Jozef

IPC: G01L1/24 ,  G01L1/242 ,  G01L1/243 ,  G01L1/247

Abstract: The present invention discloses a two-dimensional optical waveguide pressure sensor array is provided, comprising two or more row optical waveguides; two or more column optical waveguides, wherein the row optical waveguides and the column optical waveguides are deformable and arranged in a planar array to define a sensor in the crosspoints, wherein each crosspoint includes one of the row waveguides in contact with one of the column waveguides at its intersection point; wherein each crosspoint further includes a light coupling structure configured to enhance waveguide bending when pressure is applied to the crosspoint; wherein the light coupling structure comprises a layer of mechanical light scattering material disposed in contact with at least one of the row or column optical waveguide; wherein the optical waveguide pressure sensor array is configured to sense pressure by providing light to the row optical waveguides and measuring light coupled at each crosspoint to its column optical waveguide, or vice versa, and wherein the light coupled to the column optical waveguide is dependent on the pressure applied to the crosspoint acting as a sensor.

公开(公告)号：WO2022078678A2

公开(公告)日：2022-04-21

申请号：PCT/EP2021/074834

申请日：2021-09-09

Applicant: SIEMENS HEALTHCARE GMBH

Inventor： SUKKAU, Johann ,  SEEGERER, Georg

IPC: A61B5/055 ,  A61B5/11 ,  G01L1/24 ,  G01L11/02 ,  G01R33/34 ,  A61B5/00 ,  A61B5/1114 ,  A61B5/6803 ,  G01L1/243 ,  G01P13/00 ,  G01R33/072 ,  G01R33/28 ,  G01R33/3692 ,  G01R33/56509

Abstract: Die Erfindung betrifft ein System (20) zur Bestimmung der Positionierung eines Körperbereichs (O) eines Patienten in einem Magnetresonanztomographie-Scanner (2), umfassend eine Sensoranordnung (21) und eine Datentransfereinrichtung (22), wobei die Datentransfereinrichtung (22) dazu ausgelegt ist, 10 die Sensordaten (SD) der Sensoranordnung (21) aus dem Magnetresonanztomographie-Scanner (2) heraus zu transferieren, und wobei die Sensoranordnung (21) Sensoren (D1, D2, D3, S1, S2, S3) umfasst, die dazu ausgelegt sind, die Positionierung des Körperbereichs (O) des Patienten auf der Auflage zu messen, und zumindest ein Teil der Sensoren dazu ausgelegt und angeordnet ist, die Positionierung des Körperbereichs (O) zu messen, wenn sie an auf oder unter dem Körperbereich (O) angebracht ist. Die Erfindung betrifft auch ein Verfahren zur Positionierungsermittlung, einen optischen Drucksensor, einen optischen Positionssensor sowie eine Kopfhalterung.

公开(公告)号：WO2022031613A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/044216

申请日：2021-08-02

Applicant: BARD ACCESS SYSTEMS, INC.

Inventor： MISENER, Anthony, K. ,  SOWARDS, Steffan ,  MESSERLY, Shayne ,  MCLAUGHLIN, William, Robert

IPC: A61B5/06 ,  G01L1/24 ,  A61B5/11 ,  A61B18/1492 ,  A61B2562/0266 ,  A61B5/065 ,  A61B5/318 ,  A61B5/6852 ,  G01D5/35383 ,  G01L1/243 ,  G01L1/246

Abstract: Disclosed herein is a system, apparatus and method directed to detecting damage to an optical fiber of a medical device. The optical fiber includes core fibers including a plurality of sensors configured to (i) reflect a light signal based on received incident light, and (ii) change a characteristic of the reflected light signal based on experienced strain. The system also includes a console having memory storing logic that, when executed, causes operations of providing receiving reflected light signals of different spectral widths of the broadband incident light by one or more of the plurality of sensors, processing the reflected light signals to detect fluctuations of a portion of the optical fiber, and determining a location of the portion of the optical fiber or a defect affecting a vessel in which the portion is disposed based on the detected fluctuations. The portion may be a distal tip of the optical fiber.

公开(公告)号：WO2021198301A2

公开(公告)日：2021-10-07

申请号：PCT/EP2021/058370

申请日：2021-03-30

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： BARAD, Kayvon ,  WOOD, Christopher ,  RAMSHAW, Andrew

IPC: G01H9/00 ,  G01L1/24 ,  G01D5/353 ,  G01B11/16 ,  G01K11/32 ,  G01D5/48 ,  G01K11/3206 ,  G01B11/165 ,  G01D5/35316 ,  G01D5/485 ,  G01L1/243 ,  G01L1/246 ,  G01L5/0009

Abstract: Disclosed is an assembly comprising a bearing having an axis of rotation, and a fibre-based sensor for sensing strain or temperature of the bearing. The sensor extends in a direction parallel to the axis of rotation. Also disclosed is an aircraft system comprising a wheel supported on an axle by a first bearing and a second bearing. The system further comprises a first fibre optic sensor for sensing a strain or temperature of the first bearing, a second fibre optic sensor for sensing a strain or temperature of the second bearing, and an interrogator to analyse optical signals from the sensors to determine differences in the strains or temperatures of the first bearing and the second bearing.