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1. WO1995035061 - SYSTEM FOR MEASURING STIFFNESS OF A FRACTURED BONE

Publication Number WO/1995/035061
Publication Date 28.12.1995
International Application No. PCT/GB1995/001437
International Filing Date 19.06.1995
Chapter 2 Demand Filed 17.01.1996
IPC
A61B 5/103 2006.01
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
G01N 3/00 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
G01N 3/20 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
20by applying steady bending forces
CPC
A61B 5/103
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording 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
A61B 5/4504
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
45For evaluating or diagnosing the musculoskeletal system or teeth
4504Bones
A61B 5/6878
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
6846specially adapted to be brought in contact with an internal body part, i.e. invasive
6867specially adapted to be attached or implanted in a specific body part
6878Bone
G01N 2203/0041
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2203Investigating strength properties of solid materials by application of mechanical stress
003Generation of the force
0032using mechanical means
0041Human or animal power
G01N 2203/0089
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2203Investigating strength properties of solid materials by application of mechanical stress
0058Kind of property studied
0089Biorheological properties
G01N 3/20
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
3Investigating strength properties of solid materials by application of mechanical stress
20by applying steady bending forces
Applicants
  • RICHARDSON, James, Bruce [GB]/[GB]
Inventors
  • RICHARDSON, James, Bruce
Agents
  • MILHENCH, Howard, Leslie
Priority Data
9412344.520.06.1994GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM FOR MEASURING STIFFNESS OF A FRACTURED BONE
(FR) SYSTEME DE MESURE DE LA SOLIDITE D'UN OS FRACTURE
Abstract
(EN)
A bone-stiffness measuring instrument comprises a set or kit of readily assembled and adjusted components, namely a goniometer (16), a light-weight load cell (15), and a small computer package (22), adapted to continuously respond to the outputs of the load cell and goniometer and to display and/or record (i.e., store) measured stiffness data; plus hardware in duplicate, namely, a bone-screw clamp (18, 20) and bracket for fixed reference to bone-screws that are externally exposed on each of the respective sides of the fracture (following removal of an external fixator), a stiff arcuate arm member of radius at least twice the diameter of the fractured bone, and a goniometer-end mount. The arcuate arm member is adjustably fixed to the bracket for bone-screw reference, and the goniometer-end mount is also adjustably fixed to the arcuate arm member, with a releasably lockable-ball-joint connection for adjusted orientation of an end mounting to the goniometer.
(FR)
Un instrument de mesure de la solidité osseuse comprend un ensemble ou une trousse constituée d'éléments à montage et réglage faciles tels qu'un goniomètre (16), un capteur de force (15) à construction légère et une petite unité informatique (22) adaptée pour réagir en continu aux sorties du capteur de force et du goniomètre et pour afficher et/ou enregistrer (c'est-à-dire conserver en mémoire) les données de solidité mesurée; et de matérial en double, à savoir un serre-vis à os (19, 20) et une patte alignée de manière fixe sur les vis à os qui sont visibles à l'extérieur de chaque côté de la fracture (lorsque le dispositif de fixation externe a été enlevé), un bras courbé en arc rigide dont le rayon correspond à au moins deux fois le diamètre de l'os fracturé et un support pour l'extrémité du goniomètre. Le bras courbé en arc est fixé de manière réglable sur la patte pour s'aligner sur la vis à os et le support pour l'extrémité du goniomètre est également fixé de manière réglable sur le bras courbé en arc, au moyen d'un dispositif d'accouplement articulé à verrouillage déblocage qui permet de régler l'orientation d'un support terminal du goniomètre.
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