Patent ID: 7670308

Claim:
An articulated alignment arm for modeling the orientation of an injured human limb comprising: a. a first elongated arm segment having a longitudinal axis and a respective pivot end, said pivot end including a first segment disc portion, a first segment pivot aperture, and a plurality of ribs extending radially from said first segment pivot aperture on said first segment disc portion; b. a second elongated arm segment having a longitudinal axis and a respective pivot end said pivot end including a second segment disc portion, a second segment pivot aperture, and a plurality of ribs extending radially from said second segment pivot aperture on said second segment disc portion; c. a connector body for interconnecting said first arm segment to said second arm segment, said connector body including a first receiver having a first receiver disc portion, a first receiver pivot aperture, and a plurality of ribs extending radially from said first receiver pivot aperture on said first receiver disc portion, said first segment disc portion overlying said first receiver disc portion, and a second receiver, having a second receiver disc portion, a second receiver pivot aperture, and a plurality of ribs extending radially from said second receiver pivot aperture on said second receiver disc portion, said second segment disc portion overlying said second receiver disc portion; d. first fastening means passing through said first segment pivot aperture and said first receiver pivot aperture, for drawing said ribs on said first segment disc portion and said first receiver disc portion together, and locking said first arm segment at a first selected orientation about a first axis; e. second fastening means passing through said second segment pivot aperture and said second receiver pivot aperture, for drawing said ribs on said second segment disc portion and said second receiver disc portion together, and locking said second arm segment at a second selected orientation about a second axis, said first axis and said second axis being perpendicular with respect to each other.