Surgical nail

Details Surgical nail Surgical nail

A - Human Necessities

61

B

A61B 17/72 (2006.01)

Patent

CA 2534175

The surgical nail (1), here in the form of an intramedullary nail, has a central axis (2), a longitudinal borehole (3) with a diameter D extending coaxially with the central axis (2), a casing (4) with an inner surface (6) and a transverse borehole (5), extending transversely to the central axis (2) with the cross- sectional profile F and the borehole axis (8). A component (7), which narrows the cross- sectional profile F, is provided in the longitudinal borehole (3) in the region of the transverse borehole (5). By these means, the clearance, which is usually present between the medullary nail and the locking screws that have been introduced therein, can be eliminated without risk and an improved holding force as well as an improved guiding effect between the locking screw and the medullary nail can be achieved.

L'invention concerne un clou chirurgical (1) se présentant sous la forme d'un clou intramédullaire. Ce clou comprend un axe central (2), un évidement longitudinal (3) de diamètre D s'étendant coaxialement à cet axe central (2), une enveloppe (4) présentant une surface intérieure (6) et un évidement transversal (5) s'étendant perpendiculairement à l'axe central (2), cet évidement transversal (5) présentant une section F et un axe (8). Un élément (7) réduisant la section F est placé dans l'évidement longitudinal (3) au niveau de l'évidement transversal (5). Cette mesure permet d'éliminer sans risque le jeu habituellement présent entre le clou intramédullaire et les vis de verrouillage introduites dans celui-ci et d'obtenir une force de rétention améliorée et un effet de guidage amélioré entre la vis de verrouillage et le clou intramédullaire.

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