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PRESSURE ACTIVATED SURGICAL TOOL FOR USE IN SPINAL DECOMPRESSION PROCEDURES AND METHODS OF USING THE SAME
PRESSURE ACTIVATED SURGICAL TOOL FOR USE IN SPINAL DECOMPRESSION PROCEDURES AND METHODS OF USING THE SAME
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机译:用于脊柱减压手术的压力激活手术工具和使用相同的方法
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摘要
A surgical tool for use in a system for removing bone from vertebrae to relieve stenosis is provided. In one embodiment, the surgical tool includes a drill bit having a proximal end and a distal end, a drive shaft having a proximal rod portion and a distal tubular portion, the drill bit and the drive shaft configured to rotate about a horizontal axis in a clockwise direction; and an engagement system disposed between the drill bit and the drive shaft; wherein the engagement system is configured to selectively engage the drill bit to the drive shaft for powered rotation when the drill bit contacts a first material at a first predetermined resistance and to disengage the drill bit from the drive shaft when the drill bit engages a second material at a second predetermined resistance; and wherein the first predetermined resistance is greater than the second predetermined resistance.
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