Patent ID: 9186171
Filing Date: 2015-11-17
Classification: A22B,A61B

Abstract:
1. A head assembly for a power operated debridement tool, the head assembly comprising: a frame body; a disk knife blade coupled to the frame body and rotated about an axis of rotation, the disk knife blade including a cutting edge on an outer peripheral edge of the disk knife blade defining a cutting plane of the disk knife blade that is orthogonal to the axis of rotation; and an annular skin guide including an upper end, an axially spaced apart lower end adjacent the disk knife blade, and an outer wall defining a skin contact surface extending between the upper and lower ends of the annular skin guide, the skin contact surface positioned above the cutting plane of the disk knife blade and radially inwardly of the disk knife blade cutting edge to receive and direct a layer of skin tissue cut by the disk knife blade upwardly away from the blade cutting edge, the skin contact surface being recessed radially inwardly in a direction proceeding toward the disk knife blade axis of rotation with respect to a line segment extending between a first outer edge of the skin contact surface adjacent the upper end of the annular skin guide and a second outer edge of the skin contact surface adjacent the lower end of the annular skin guide.