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1. WO1998025526 - ANCILLARY EQUIPMENT FOR PREPARING THE SETTING OF A KNEE PROSTHESIS

Publication Number WO/1998/025526
Publication Date 18.06.1998
International Application No. PCT/EP1997/006833
International Filing Date 08.12.1997
Chapter 2 Demand Filed 04.06.1998
IPC
A61B 17/15 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
14Surgical saws
15Guides therefor
CPC
A61B 17/155
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
14Surgical saws
15Guides therefor
154for preparing bone for knee prosthesis
155Cutting femur
Applicants
  • MEMENTO S.A. [CH]/[CH] (AllExceptUS)
  • LOOTVOET, Louis [BE]/[BE] (UsOnly)
  • MULLIER, Jean [BE]/[BE] (UsOnly)
Inventors
  • LOOTVOET, Louis
  • MULLIER, Jean
Agents
  • MARTIN, Jean-Paul
Priority Data
960103110.12.1996BE
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) ANCILLARY EQUIPMENT FOR PREPARING THE SETTING OF A KNEE PROSTHESIS
(FR) ANCILLAIRE POUR LA PREPARATION DE LA POSE D'UNE PROTHESE DE GENOU
Abstract
(EN) The invention concerns ancillary equipment for preparing the setting of a knee prosthesis, characterised in that it comprises a plate (6) not thicker than a tibial plate of the knee prosthesis, and to which is fixed a rod (8) along an inclination suitable for obtaining a femoral interval orthogonal to the mechanical axis of the lower member; this plate is provided with a block of variable thickness, and is designed to be urged to rest on a tibial cutting plane (4) after insertion of its rod in the medullary canal of the thigh bone to obtain ligamentary equilibrium and for the ulterior lengthwise and flectional adjustment of the spaces between the proximal cut of the tibia (3) and the distal and posterior cuts of the thigh bone (2); this ancillary equipment eliminates the need for a femoral cut to obtain ligamentary equilibrium, and enables the cutting of the distal end of the thigh bone with a single cut.
(FR) Ancillaire pour la préparation de la pose d'une prothèse de genou, caractérisé en ce qu'il comprend une plaque (6) ayant une épaisseur au plus égale à celle d'un plateau tibial de la prothèse de genou, et à laquelle est fixée une tige (8) suivant une inclinaison appropriée pour permettre l'obtention d'un interligne fémoral orthogonal à l'axe mécanique du membre inférieur; cette plaque est pourvue d'une câle d'épaisseur variable, et est destinée à venir prendre appui sur un plan de coupe tibial (4) après insertion de sa tige dans le canal médullaire du fémur afin de permettre l'obtention d'un équilibre ligamentaire et en vue d'un réglage ultérieur des écarts en extension et en flexion entre la coupe proximale du tibia (3) et les coupes distales et postérieure du fémur (2); ce matériel ancillaire évite de devoir pratiquer une coupe fémorale pour obtenir l'équilibre ligamentaire, et permet la coupe de l'exrémité distale du fémur par une coupe unique.
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