Multi-leg caliper with heart scale

Apparatus for analyzing a cardiographic chart, comprising:

• at least five equally spaced parallel first members, each having a pointed end and an indicating portion opposite said pointed end;
• at least five parallel cross-members, means pivotally coupling said cross members to said first members thereby forming a lattice structure which can be expanded and contracted while maintaining said pointed ends of said parallel first members collinear, said indicating portion of said parallel first members maintained in a second collinear relationship and parallel to said pointed ends of said parallel first members;
• and
• a heart scale coupled to said multi-leg caliper, said heart scale comprising:
• indicia means adjacent to said indicating portions, said indicia means having values thereon corresponding to information and characteristics of a cardiographic chart, said indicia means further having an elongate viewing area therein, said indicia means further including a reference point disposed thereon, so that disposing said reference point of said indicia means and another indicating portion to be visible in said viewing area, and positioning at least two said pointed ends adjacent said cardiographic chart will place said another indicating portion adjacent said values on said heart scale thereby indicating the desired information and characteristics of a cardiographic chart.

Apparatus for analyzing a cardiographic chart comprising:

• a multi-leg caliper comprising:
• at least five equally spaced parallel first members, each having a pointed end and an indicating portion opposite said pointed ends;
• at least five parallel cross-members;
• means pivotally coupling said cross-members to corresponding first members thereby forming a lattice structure which can be expanded and contracted while maintaining said pointed ends of said parallel first members collinear;
• said indicating portions of said parallel first members maintained in a second collinear relationship and parallel to said pointed ends of said parallel first members;
• and
• a heart scale connected to said multi-leg caliper, said heart scale comprising:
• indicia means adjacent to said indicating portions, said indicia means having values thereon corresponding to information and characteristics of a cardiographic chart;
• said indicia means further having an elongate viewing area therein;
• a reference point disposed on said indicia means so that disposing said reference point of said indicia means and another indicating portion of said caliper to be visible in said viewing area, and positioning at least two of said pointed ends adjacent said cardiographic chart will place said another indicating portion adjacent said values on said indicia means, thereby indicating the desired information and characteristics of a cardiographic chart.