Power operated dermatome with rotary knife blade

摘要

A head assembly (200) for a power operated dermatome (100) including a frame body or housing (202) supporting a gear train (520), a blade housing assembly (400), an annular rotary knife blade (300) supported for rotation about an axis of rotation (R) by the blade housing assembly (400). The rotary knife blade (300) includes an inner wall (365) defining an interior region (301) and has a cutting edge (360) at one end (368) defining a cutting plane (CP). The head assembly (200) further includes a depth gauge assembly (600) including a depth gauge support (602) and a depth gauge (620) including a depth gauge plate (622) supported by the depth gauge support (602) for axial movement along the axis of rotation (R), the depth gauge plate (622) extending into the interior region (301) and the depth gauge support (602) attached to and extending from the frame body (202).

主权项

1. A head assembly for a power operated dermatome, the head assembly comprising: a frame body, a blade housing assembly, a rotary knife blade supported for rotation about an axis of rotation by the blade housing assembly, the rotary knife blade including an inner wall defining an interior region of the rotary knife blade and having a cutting edge at one end of the rotary knife blade defining a cutting plane orthogonal to the axis of rotation of the rotary knife blade, and a depth gauge assembly including a depth gauge support and a depth gauge including a depth gauge shaft and a depth gauge plate extending radially outwardly from the depth gauge shaft, the depth gauge shaft supported by the depth gauge support for axial movement of the depth gauge along the axis of rotation of the rotary knife blade, the depth gauge shaft being concentric with the axis of rotation of the rotary knife blade, the depth gauge plate extending into the interior region of the rotary knife blade and the depth gauge support attached to and extending from the frame body, the depth gauge plate being disk-shaped and including an annular rim having a planar lower surface that extends around an entirety of the annular rim.