Patent ID: 8333695

Claim:
A medical instrument for manipulating tissue or an organ in a human or an animal body, comprising: an elongated shaft having a distal portion introducible into said body, and at least one working element arranged at a distal end portion of said distal portion of said shaft for manipulating said tissue or organ, said at least one working element comprising at least one magnetically acting element producing a magnetic field for manipulating said tissue or organ; said at least one magnetically acting element being movably arranged at said distal end of said shaft; said at least one magnetically acting element being rotatably mounted at said distal end portion of said shaft for rotation about a rotation axis running through said at least one magnetically acting element; said rotation axis extending transverse to a longitudinal axis of the shaft; said at least one magnetically acting element having magnetic poles and the rotation axis of said at least one magnetically acting element being arranged between said magnetic poles; wherein rotation of the at least one magnetically acting element about the rotation axis changes the strength of a magnetic force acting between the at least one magnetically acting element and the tissue or organ.