Distal bone anchors for bone fixation with secondary...

Details Distal bone anchors for bone fixation with secondary... Distal bone anchors for bone fixation with secondary...

A - Human Necessities

61

B

A61B 17/84 (2006.01) A61B 17/68 (2006.01) A61B 17/74 (2006.01) A61B 17/78 (2006.01) A61B 17/86 (2006.01)

Patent

CA 2442334

Disclosed is a bone fracture fixation device (12), such as for reducing and compressing fractures in the proximal femur (10). The fixation device (12) includes an elongate body (28) with a helical cancellous bone anchor (34) on a distal end (32). An axially moveable proximal anchor (36) is carried by the proximal end (30) of the fixation device (12). The device (12) is rotated into position across the fracture or separation between adjacent bones and into the adjacent bone or bone fragment, and the proximal anchor (36) is distally advanced to apply secondary compression and lock the device (12) into place. The device (12) may also be used for soft tissue attachments.

L'invention se rapporte à un dispositif de fixation (12) pour os fracturé permettant, par exemple, la réduction et la compression des fractures du fémur proximal (10). Ce dispositif de fixation (12) comporte un corps oblong (28) doté d'un dispositif d'ancrage (34) hélicoïdal des os spongieux disposé sur une extrémité distale (32). Un dispositif d'ancrage proximal (36) mobile axialement est porté par l'extrémité proximale (30) du dispositif de fixation (12). Il est possible de faire tourner ce dispositif (12) de manière à le positionner à travers la fracture (24) ou un espace entre des os adjacents de manière qu'il pénètre dans l'os adjacent ou le fragment osseux, le dispositif d'ancrage proximal (36) étant éloigné de manière à appliquer une compression secondaire et à bloquer sur place le dispositif (12). Ce dispositif (12) peut également être utilisé pour la fixation de tissus mous.

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