Patent ID: 7338489

Claim:
Cutting tool intended for tissue surgical resection instruments, comprising: a connector element ( 5 , 5 a , 29 ) which is supported in its upstream portion by a bistoury ( 32 ), a thin cutting element ( 7 , 7 a ) supported by an elongated portion ( 5 a ) of the connector element that is transverse to the cutting element, a longitudinal axis (X-X′) of the cutting element and a longitudinal axis (Y-Y′) of the elongated portion of the connector element together defining a cutting element plane, and a guide element ( 15 , 15 a , 15 b ) spaced apart from the cutting element ( 7 , 7 a ) by a distance (b) equal to the thickness of the tissue to be removed and which is designed, during the cutting procedure, to be urged in contact with the surface ( 1 ) thereof, wherein a longitudinal axis of the guide element ( 15 , 15 a , 15 b ) is located in the cutting element plane and wherein the guide element has a surface adapted to be urged in contact with the tissue that is larger than the corresponding surface of the cutting element ( 7 , 7 a ).