×

Oscillating bone chipper

  • US 8,167,883 B2
  • Filed: 03/19/2009
  • Issued: 05/01/2012
  • Est. Priority Date: 03/20/2008
  • Status: Active Grant
First Claim
Patent Images

1. 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.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×