Ratcheting epiphysiodesis plate

A - Human Necessities – 61 – B

Patent

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Details

A61B 17/80 (2006.01)

Patent

CA 2694878

A ratcheting epiphysiodesis plate comprises a female base half (20) having a ratchet arm (230) and a male sliding half (30) having a series of ratchet teeth (312), the male sliding half being slidably connected to the female base half with the ratchet arm engaging the ratchet teeth, one of the female and male sliding halves including a first fixation element receiving hole (222), (322) for receiving therethrough a fixation element for binding the plate to a bone. The plate may further comprise a slider band (40) slidably connected to the female base half over the ratchet arm, or a plurality of female base halves with ratchet arms of different lengths, in order to adjust the preset load required to release the ratchet arms from the ratchet teeth.

L'invention concerne une plaque d'épiphysiodèse à rochet comprenant une moitié de base femelle (20) à bras de cliquet (230) et une moitié coulissante mâle (30) à série de dents de rochet (312). La moitié coulissante mâle est reliée de manière coulissante à la moitié de base femelle ; le bras de cliquet vient en prise avec les dents de rochet ; soit la moitié femelle soit la moitié mâle coulissante est munie d'un premier trou de réception d'élément de fixation (222, 322) destiné à recevoir de façon traversante un élément de fixation pour fixer la plaque sur un os. De plus, la plaque peut comporter une bande de coulisse (40) reliée de manière coulissante à la moitié de base femelle sur le bras de cliquet ou une pluralité de moitiés de base femelle à bras de cliquet de longueurs différentes, afin d'ajuster la charge préétablie requise pour libérer les bras de cliquet des dents de rochet.

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