This application is related to U.S. Provisional application Ser. No. 61/322,784 tiled Apr. 9, 2010, entitled Micro Surgical Knife With Safety Feature and U.S. Utility patent application Ser. No. 12/872,339, entitled Micro Surgical Knife With Safety Feature filed contemporaneously with this application, still pending. The contents of those applications are incorporated by reference herein in their entirety.

FIG. 1 is a perspective view of the retracted position of the guard in a first embodiment of our new design;

FIG. 2 is a perspective view of the extended position of the guard in a first embodiment of our new design

FIG. 3 is a side view of the extended position of the guard in a first embodiment of our new design;

FIG. 4 is a top view of the extended position of the guard in a first embodiment of our new design;

FIG. 5 is bottom view of the extended position of the guard in a first embodiment of our new design;

FIG. 6 is a perspective view of the retracted position of the guard in a second embodiment of our new design;

FIG. 7 is a perspective view of the extended position of the guard in a second embodiment of our new design

FIG. 8 is a side view of the extended position of the guard in a second embodiment of our new design;

FIG. 9 is a top view of the extended position of the guard in a second embodiment of our new design;

FIG. 10 is bottom view of the extended position of the guard in a second embodiment of our new design;

FIG. 11 is a perspective view of the retracted position of the guard in a third embodiment of our new design;

FIG. 12 is a perspective view of the extended position of the guard in a third embodiment of our new design;

FIG. 13 is a side view of the extended position of the guard in a third embodiment of our new design;

FIG. 14 is a top view of the extended position of the guard in a third embodiment of our new design;

FIG. 15 is bottom view of the extended position of the guard in a third embodiment of our new design;

FIG. 16 is a perspective view of the retracted position of the guard in a fourth embodiment of our new design;

FIG. 17 is a perspective view of the extended position of the guard in a fourth embodiment of our new design

FIG. 18 is a side view of the extended position of the guard in a fourth embodiment of our new design;

FIG. 19 is a top view of the extended position of the guard in a fourth embodiment of our new design; and,

FIG. 20 is bottom view of the extended position of the guard in a fourth embodiment of our new design.

The portions of the handle for use with a micro surgical knife which are shown in broken lines are for illustration purposes only and form no part of the claimed design.