A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/46 (2006.01)
Patent
CA 2662690
The invention relates to a universal extractor for total endoprostheses (TEP) of the knee joint. The object of the invention, namely to make available a universal extractor for artificial knee joints that avoids the disadvantages of the prior art, is achieved by the fact that the universal extractor comprises the following parts: a T-piece (1) with an extraction plate (11) and with a securing arm (8), said securing arm (8) being fork-shaped and slotted at its distal end (9) and supporting the extraction plate (11) at its proximal end; a scissor mechanism (7) with clamping jaws (71) located at its free distal ends, said securing arm (8) holding the scissor mechanism (7) by means of a securing pin (74) about which the scissor mechanism (7) can move; and an eyebolt (72) which is mounted on the proximal end of the scissor mechanism (7) and has a knurled nut (73), the eyebolt (72) being adjustable and connecting the ends of the scissor mechanism (7) to each other, so as to permit fixing or release of the clamping jaws (71), which have a shovel-shaped, U-shaped to V-shaped geometry.
L'invention concerne un extracteur universel pour endoprothèses totales (EPT) du genou. Elle vise à indiquer un extracteur universel pour endoprothèses totales (EPT) du genou qui évite les inconvénients de l'état de la technique. A cet effet, l'extracteur universel comprend les éléments suivants : une pièce en T (1) avec une plaque d'extraction (11) et une branche de fixation (8), la branche de fixation (8) étant en forme de fourche et fendue à son extrémité distale et portant à son extrémité proximale la plaque d'extraction (11) ; un mécanisme extensible (7) aux extrémités distales libres duquel se trouvent des mors de serrage (71), la branche de fixation (8) maintenant le mécanisme extensible (7) au moyen d'un axe de fixation (74) autour duquel le mécanisme extensible (7) est mobile ; et un boulon à oeillet (72) monté à l'extrémité proximale du mécanisme extensible (7) et pourvu d'un écrou, moleté (73). Le boulon à oeillet (72) est réglable et relie entre eux les extrémités du mécanisme extensible (7), ce qui permet de bloquer ou de libérer les mors de serrage (71) qui présentent une géométrie du genre godet, en forme de U ou de V.
Arnhold Michael
Arnhold Christian
Borden Ladner Gervais Llp
LandOfFree
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