Patent ID: 8167883

Claim:
A device for chipping bone and articular cartilage through a small incision using minimally invasive surgical approach comprising: a chipper tip having a metallic circular platform to which a plurality of trapezoidal cutting blades are firmly attached at the periphery of said metallic circular platform whereby said cutting blades stand perpendicular to said metallic circular platform; a suction channel for removal of bone particles and debris; an electromagnetic reciprocating driver, attached to said chipping tip by way of a quick coupling mechanism wherein said electromagnetic driver is housed in a hollow casting body having a solidary rail at its bottom in a form of inverted T; a femoral and a tibial cutting guide for precision guiding of said electromagnetic driver during bone chipping; a series of three or more electromagnetic coils having a hollow center; a series of Neodymium magnets in a form of wafers located between said electromagnet coils; a reciprocating shaft centrally located and firmly connected at its periphery to said Neodymium wafers; a flattened blade shank having a tongue; a central shaft connected by way of quick connect to said reciprocating shaft located in said flattened blade shank; and a suction channel located within the body of the driver connected by way of quick connect to the suction channel of the blade shank.