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1. WO2022094656 - CALCULATING RANGE OF MOTION

Publication Number WO/2022/094656
Publication Date 12.05.2022
International Application No. PCT/AU2021/051292
International Filing Date 02.11.2021
IPC
G06T 17/20 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
173D modelling for computer graphics
20Wire-frame description, e.g. polygonalisation or tessellation
A61B 5/11 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
103Measuring devices for testing the shape, pattern, size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
A61B 34/10 2016.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
10Computer-aided planning, simulation or modelling of surgical operations
A61F 2/30 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
02Prostheses implantable into the body
30Joints
CPC
A61B 2034/102
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
10Computer-aided planning, simulation or modelling of surgical operations
101Computer-aided simulation of surgical operations
102Modelling of surgical devices, implants or prosthesis
A61B 2034/105
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
10Computer-aided planning, simulation or modelling of surgical operations
101Computer-aided simulation of surgical operations
105Modelling of the patient, e.g. for ligaments or bones
A61B 2034/108
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
10Computer-aided planning, simulation or modelling of surgical operations
108Computer aided selection or customisation of medical implants or cutting guides
A61B 34/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
34Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
10Computer-aided planning, simulation or modelling of surgical operations
A61B 5/11
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
103Detecting, measuring or recording devices for testing the shape, pattern, ; colour,; size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
A61B 5/1121
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes
103Detecting, measuring or recording devices for testing the shape, pattern, ; colour,; size or movement of the body or parts thereof, for diagnostic purposes
11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
1121Determining geometric values, e.g. centre of rotation or angular range of movement
Applicants
  • 360 HIP SYSTEMS PTY LIMITED [AU]/[AU]
Inventors
  • MILES, Brad Peter
  • TWIGGS, Joshua
Agents
  • FB RICE PTY LTD
Priority Data
202090400203.11.2020AU
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CALCULATING RANGE OF MOTION
(FR) CALCUL D'AMPLITUDE ARTICULAIRE
Abstract
(EN) A system and method (100) for estimating range of motion of a joint (3) connecting a first bone (5) to a second bone (7), the joint comprising a point of rotation (9) defining rotation of the first bone relative to the second bone. The method comprises: obtaining (110) a digital model of the joint that includes, for each bone (5, 7), respective mesh models with sets of mesh points that represent the bone; determining (120) polar coordinates for the set of mesh points, with the point of rotation (9) as a pole (21) of the polar coordinates; and calculating (130), based on the polar coordinates, multiple angular distance values relating to rotation of the joint, where the multiple angular distance values are indicative of an angular distance between points in the set of mesh points, and the angular distance being indicative of the range of motion of the joint.
(FR) Un système et un procédé (100) pour estimer l'amplitude articulaire d'une articulation (3) reliant un premier os (5) à un second os (7), l'articulation comprenant un point de rotation (9) définissant la rotation du premier os par rapport au second os. Le procédé consiste : à obtenir (110) un modèle numérique de l'articulation qui comprend, pour chaque os (5, 7), des modèles de maillage respectifs avec des ensembles de points de maillage qui représentent l'os ; à déterminer (120) des coordonnées polaires pour l'ensemble de points de maillage, avec le point de rotation (9) en tant que pôle (21) des coordonnées polaires ; et à calculer (130), sur la base des coordonnées polaires, de multiples valeurs de distance angulaire relatives à la rotation de l'articulation, les multiples valeurs de distance angulaire étant indicatives d'une distance angulaire entre des points dans l'ensemble de points de maillage, et la distance angulaire étant indicative de l'amplitude articulaire de l'articulation.
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