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1. WO2016149819 - TEMPERATURE INVARIANT FORCE AND TORQUE SENSOR ASSEMBLIES

Publication Number WO/2016/149819
Publication Date 29.09.2016
International Application No. PCT/CA2016/050331
International Filing Date 22.03.2016
IPC
G01L 5/00 2006.01
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
5Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
A61B 17/94 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
94Endoscopic surgical instruments
G01B 11/16 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
16for measuring the deformation in a solid, e.g. optical strain gauge
G01B 21/32 2006.01
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
21Measuring arrangements or details thereof in so far as they are not adapted to particular types of measuring means of the other groups of this subclass
32for measuring the deformation in a solid
CPC
A61B 17/00234
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
00234for minimally invasive surgery
A61B 2090/066
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
90Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
06Measuring instruments not otherwise provided for
064for measuring force, pressure or mechanical tension
066for measuring torque
A61B 2562/0266
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
2562Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
02Details of sensors specially adapted for in-vivo measurements
0261Strain gauges
0266Optical strain gauges
G01B 11/165
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11Measuring arrangements characterised by the use of optical means
16for measuring the deformation in a solid, e.g. optical strain gauge
165by means of a grating deformed by the object
G01L 1/246
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
24by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis ; using infra-red, visible light, ultra-violet
242the material being an optical fibre
246using integrated gratings, e.g. Bragg gratings
G01L 1/26
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
1Measuring force or stress, in general
26Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
Applicants
  • JANABI-SHARIFI, Farrokh [CA]/[CA]
  • CHEEMA, Asim [CA]/[CA]
  • TAGHIPOUR, Ata [IR]/[CA]
Inventors
  • JANABI-SHARIFI, Farrokh
  • CHEEMA, Asim
  • TAGHIPOUR, Ata
Agents
  • BERESKIN & PARR LLP / S.E.N.C.R.L.
Priority Data
62/136,81723.03.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TEMPERATURE INVARIANT FORCE AND TORQUE SENSOR ASSEMBLIES
(FR) ENSEMBLES CAPTEURS DE FORCE ET DE COUPLE INSENSIBLES AUX VARIATIONS DE TEMPÉRATURE
Abstract
(EN)
Various sensor assemblies are described herein that can measure axial and lateral forces and/or axial and lateral torques acting on an instrument independent of steady state temperature variations. In one embodiment, the sensor assembly has a sensor body for coupling to the instrument such that a shaft and tip of the instrument extend from opposing ends of the sensor body. The sensor body has first and second strain sensing regions. The sensor assembly further includes first and second strain sensors coupled to and configured to measure axial strain of the first and second regions, respectively. During use, when the sensor body is coupled to the instrument, each of the first and second regions experience an opposite one of a tensile axial strain and a compressive axial strain in response to an axial force or an axial torque acting on the tip of the instrument.
(FR)
L'invention concerne divers ensembles capteurs qui peuvent mesurer des forces axiales et latérales et/ou des couples axiaux et latéraux agissant sur un instrument indépendant des variations de température à l'état stabilisé. Dans un mode de réalisation, l'ensemble capteur comprend un corps de capteur destiné au couplage à l'instrument de telle sorte qu'une tige et une pointe de l'instrument s'étendent depuis des extrémités opposées du corps de capteur. Le corps de capteur comprend des première et deuxième régions de détection d'effort. L'ensemble capteur comprend en outre des premier et deuxième capteurs d'effort respectivement couplés aux première et deuxième régions et configurés pour mesurer l'effort axial de celles-ci. Pendant l'utilisation, lorsque le corps de capteur est couplé à l'instrument, chacune des première et deuxième régions subit un effort de traction axial ou un effort de compression axial, opposés l'un à l'autre, en réponse à une force axiale ou un couple axial agissant sur la pointe de l'instrument.
Also published as
Latest bibliographic data on file with the International Bureau