A skin cutter instrument for excising ellipsoid-shaped samples of skin from a patient is disclosed. The skin cutter has a hollow tube, a spring and rod combination within the tube, an assembly with multiple pivotable joints, and two skin cutting blades. The assembly carries out a scissoring motion when...http://www.google.de/patents/US5209755?utm_source=gb-gplus-sharePatent US5209755 - Dermal exciser
