Patent ID: 9623277
Date: 2017-04-18
CPC Classifications: A63B

Claim:
1. A body support structure, comprising: a main body having an upper surface, a lower surface, and at least one side surface extending between the upper and lower surfaces; body alignment information at the upper surface of the main body; and a plurality of spaced-apart non-embedded visual reference points at the upper surface of the main body within a perimeter border region of the upper surface, wherein an inner border of the perimeter border region has a shape the same as a shape of the upper surface of the main body, wherein the inner border of the perimeter border region is centered within a perimeter edge of the upper surface, wherein a maximum width dimension and a maximum length dimension of each one of the non-embedded visual reference points is less than about 10 mm, wherein a first one and a second one of the non-embedded visual reference points lie on a longitudinal reference axis extending along a length of and bisecting the upper surface, wherein the first and second one of the non-embedded visual reference points are located at opposing ends of the main body, wherein a third one and a fourth one of the non-embedded visual reference points lie on a transverse axis extending perpendicularly across the longitudinal reference axis, wherein the third and fourth one of the non-embedded visual reference points are located at opposing sides of the main body and wherein the inner border of the perimeter border region encompasses the body alignment information such that all of the non-embedded visual reference points are within the perimeter border region of the upper surface and all of the body alignment information is within an area encompassed by the inner border of the perimeter border region.