Apparatus for the production of endochondral or...

A - Human Necessities – 61 – B

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A61B 17/16 (2006.01) A61B 17/00 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2258281

The apparatus for the production of endochondral or osteochondral bores comprises a combination of a substantially hollow cylindrical sleeve (10), of which one end is formed as a circular cutting edge (11), with a flat borer (20) which is rotatably and axially displaceably arranged in the sleeve (10). Through pressing in of the cutting edge (11) into the tissue, advantageously only into the cartilage tissue, a tissue column is punched out which then is cut away and removed through screwing in of the flat borer (20). In this the boring is done up to the depth of the cutting edge (11) or deeper.

L'invention concerne un dispositif pour réaliser des trous endochondraux et ostéochondraux. Ce dispositif comprend une douille (10) pratiquement en forme de cylindre creux, dont une extrémité se présente sous la forme d'une arête coupante circulaire (11), ladite douille étant associée à un foret (20) monté de façon à tourner et à coulisser axialement dans la douille (10). L'enfoncement de l'arête coupante (11) dans le tissu, de préférence dans le tissu cartilagineux, permet de découper une colonne de tissu qui est retirée lors du vissage du foret (20). Le perçage s'effectue au moins jusqu'à la profondeur de l'arête coupante (11).

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