Medical Instrument For Cutting Off Tissue And Cartilage From A Human Or Animal Body

A medical instrument for cutting off tissue and cartilage from a body, comprising

• an outer shaft having a distal end and a proximal end, and having a longitudinal axis,
• said outer shaft having at least a first window in an area of said distal end, each of said first windows having at least one cutting edge;
• a hollow inner shaft received in that outer shaft,
• said hollow inner shaft being rotatable about said longitudinal axis, a proximal end of said hollow inner shaft can be attached to a vacuum source,
• said hollow inner shaft having, at its distal end area, at least one opening comprising at least one cutting edge cooperating with at least one of said cutting edges of said at least one first window of said outer shaft in a cutting action when turning said inner hollow shaft, thereby cutting off tissue and cartilage from a body, and
• wherein one further window is provided in said distal end area of said outer shaft,
• said further window being surrounded by a curette having a separating edge for separating tissue and cartilage from said body by penetrating said separating edge into said tissue or cartilage, and wherein
• said further window is in an area of at least one opening of said inner shaft allowing to cut tissue and cartilage separated by said separating edge of said curette into small pieces that can be sucked in through said at least one opening in said inner hollow shaft.