Patella paw setting device with graduation

The utility model relates to a patella paw placing device with graduation, which belongs to the field of a medical appliance and the patella paw placing device with graduation solves the problem of the depth of embedding a patella paw being not easily controlled in an operation. The patella paw placing device with graduation is composed of handles, a tongs shaft and a tongs port and is characterized in that one end of a swinging ruler with graduation is connected with the terminal of one handle by a swinging shaft and the other end of the swinging ruler with graduation is overlapped on a groove of the other handle. The dimension of the tongs port of the patella paw placing device and the depth of embedding the patella paw can be mastered, and the patella paw placing device with graduation is convenient for the operation.