Patent ID: 7344538
Filing Date: 2008-03-18
Classification: A61B,Y10S

Abstract:
1. A fixation device for fusion of bones or bone segments in the human mid-foot, comprising: a plate configured to conform to a mid-foot of a patient, said plate defining a plurality of holes, each having a diameter sized for receiving a bone engaging fastener therethrough for attachment of said plate to bone or bone segments of the mid-foot, said plate further defining a plate center point; and said plate further defining a plurality of cut-outs, each dimensioned greater than the diameter of said plurality of holes, wherein said plate further defines (i) a first corner protrusion, (ii) a second corner protrusion, (iii) a third corner protrusion, and (iv) a fourth corner protrusion, wherein said plate further defines (i) a first side edge extending from said first corner protrusion to said second corner protrusion, (ii) a first end edge extending from said second corner protrusion to said third corner protrusion, (iii) a second side edge extending from said third corner protrusion to said fourth corner protrusion, and (iv) a second end edge extending from said fourth corner protrusion to said first corner protrusion, wherein said plurality of holes includes (i) a first circular hole defined in said first corner protrusion, (ii) a second circular hole defined in said second corner protrusion, (iii) a third circular hole defined in said third corner protrusion, and (iv) a fourth circular hole defined in said fourth corner protrusion, wherein a first boundary is defined by a first quadrilateral created by (i) a first line segment extending from a first center point of said first circular hole to a second center point of said second circular hole, (ii) a second line segment extending from said second center point of said second circular hole to a third center point of said third circular hole, (iii) a third line segment extending from said third center point of said third circular hole to a fourth center point of said fourth circular hole, and (iv) a fourth line segment extending from said fourth center point of said fourth circular hole to said first center point of said first circular hole, wherein said plurality of holes further includes (i) a fifth circular hole interposed between said first corner protrusion and said plate center point, (ii) a sixth circular hole interposed between said second corner protrusion and said plate center point, (iii) a seventh circular hole interposed between said third corner protrusion and said plate center point, and (iv) an eighth circular hole interposed between said fourth corner protrusion and said plate center point, wherein each of said fifth circular hole, said sixth circular hole, said seventh circular hole, and said eighth circular hole is positioned within said first boundary, wherein each of said plurality of cut-outs is positioned within said first boundary, wherein a second boundary is defined by a second quadrilateral created by (i) a fifth line segment extending from a fifth center point of said fifth circular hole to a sixth center point of said sixth circular hole, (ii) a sixth line segment extending from said sixth center point of said sixth circular hole to a seventh center point of said seventh circular hole, (iii) a seventh line segment extending from said seventh center point of said seventh circular hole to an eighth center point of said eighth circular hole, and (iv) an eighth line segment extending from said eighth center point of said eighth circular hole to said fifth center point of said fifth circular hole, wherein said plate further defines (i) a first side protrusion partially defined by said first side edge and interposed between said first corner protrusion and said second corner protrusion, and (ii) a second side protrusion partially defined by said second side edge and interposed between said third corner protrusion and said fourth corner protrusion, wherein said plurality of holes further includes (i) a ninth circular hole defined in said first side protrusion, and (ii) a tenth circular hole defined in said second side protrusion, and wherein each of said ninth circular hole and said tenth circular hole is positioned outside of said second boundary.