Tubular cutter device

It is related with the equipment and the method for cutting out the piece of an organization from the outside of the body of the target human being or an animal, or an organization lump in the living body. The equipment is formed in the edge where the tip part of the cutoff pipe of the shape of a long picture which usually has a lumen which penetrates the opening of a tip part and the tip part, and the b said cutoff pipe counters, and consists of the 1st and 2nd edge of a blade estranged with the distance D. Equipment can advance the inside of an organization and cuts off the piece of an organization of the width W. The width W is almost equal to the distance D.