Surgical rotary abrader

A - Human Necessities – 61 – B

Patent

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Details

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

Patent

CA 2499276

Apparatus for use as a surgical handpiece is disclosed. An exemplary apparatus includes a body (400), a rotatable shaft (220) extending from the body (400) and including a tissue contacting component such as a burr (200), and an outer tube (100) connected to the body and surrounding at least a portion of the shaft (220). In some configurations, the minimum separation between the tissue contacting component and the outer tube (100) is greater than the minimum separation between the shaft (220) and the outer tube (100), thereby preventing the tissue contacting component from contacting the shaft (220) upon the application of a force perpendicular to the axis of the shaft (220). The device (1) may include stand-off elements (700) positioned between the shaft (220) and the outer tube (100) to aid in preventing the tissue contacting component from contacting the outer tube (100) during operation. The outer tube (100) may be flexible with respect to the body (400), such as by being constructed of a relatively flexible material and/or by being flexibly connected to the body (400).

L'invention concerne un appareil destiné à être utilisé comme pièce à main chirurgicale. Un appareil exemplaire présente un corps, un manche rotatif prolongeant le corps et comprenant un élément de contact avec le tissu, tel qu'une fraise; et un tube extérieur relié au corps et entourant au moins une partie du manche. Dans certaines configurations, la distance minimale entre l'élément de contact avec le tissu et le tube extérieur est supérieure à la distance minimale entre le manche et le tube extérieur, ce qui empêche l'élément de contact avec le tissu de toucher le manche lorsqu'une force est exercée perpendiculairement à l'axe du manche. L'appareil peut comprendre des éléments à distance de sécurité placés entre le manche et le tube extérieur pour empêcher que l'élément de contact avec le tissu ne touche le tube extérieur pendant l'opération. Le tube extérieur peut être souple par rapport au corps s'il est confectionné dans un matériau relativement souple et/ou s'il est relié de façon élastique au corps. Dans certains modes de réalisation, le tube extérieur peut être plus souple que le manche relativement au corps.

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