×

METHOD AND APPARATUS FOR BONE FRACTURE FIXATION

  • US 20100179600A1
  • Filed: 03/25/2010
  • Published: 07/15/2010
  • Est. Priority Date: 02/22/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • determining a load to be supported across separated bone regions by a bridge region of a bone plate;

    determining an acceptable cut force (CF) for the bridge region;

    determining a cross-sectional area (a) of the bridge region based on the determined load;

    determining a height (h) and a width (w) of the bridge region based on the following equation;

    CF = ( ( S



    1
    )


    ( a )
    + C



    1
    )


    ( w h max ) S



    2
    wherein “

    S1,”



    C1,” and



    S2”

    are constants for a given bridge material, constant “

    S1”

    is a slope of a curve defined by a range of cut force versus cross-sectional area, constant “

    C1”

    is a Y-intercept of the curve, and constant “

    S2”

    is a slope of Ln(ARF) versus Ln(aspect ratio), wherein “

    ARF”

    is an aspect ratio factor that is defined by;

    ARF = CF



    1
    ( CF



    1
    + CF



    2
    )
    / 2
    wherein (hmax) is a maximum height of the bridge region, “

    CF1”

    is a first cut force associated with one of the width (w) and the maximum height (hmax) of the bridge region, “

    CF2”

    is a second cut force associated with the other of the width (w) and the maximum height (hmax), and the aspect ratio is a ratio between the maximum height (hmax) and the width (w); and

    providing a bone plate including a bridge region having the height (h) and width (w) for securing the separated bone regions.

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