Patent ID: 8156945
Filing Date: 2012-04-17
Classification: A61B

Abstract:
1. An apparatus to remove calluses from skin, the apparatus comprising: a first outer surface forming a trapezoid, the first outer surface having four perimeters, two of the four perimeters being parallel to each other and the other two of the four perimeters being not parallel to each other; a second outer surface forming a first convex right-angle trapezoid, the second outer surface being adjacent to one of the two of the four perimeters being not parallel to each other and the second outer surface having a first abrasive exterior surface; a third outer surface forming a second convex right-angle trapezoid, the third outer surface being adjacent to the other one of the two of the four perimeters being not parallel to each other, and the third outer surface having a second abrasive exterior surface; wherein the first convex right-angle trapezoid of the second outer surface is complementary to the second convex right-angle trapezoid of the third outer surface; a fourth outer surface having a third convex surface that is adjacent to the second outer surface and adjacent to the third outer surface, the fourth outer surface having a third abrasive exterior surface, wherein the length of the fourth outer surface is less than the length of the first outer surface; and a fifth outer surface have a fourth convex surface, the fifth outer surface being adjacent to the second outer surface, adjacent to the third outer surface and adjacent to the fourth outer surface; wherein the first outer surface, the second outer surface, the third outer surface, the fourth outer surface and the fifth outer surface form a pocket, wherein the pocket has: a first inner surface forming a trapezoid, the first inner surface having four perimeters, two of the four perimeters being parallel to each other and the other two of the four perimeters being not parallel to each other; a second inner surface forming a first right-angle trapezoid, the second inner surface being adjacent to one of the two of the four perimeters being not parallel to each other; a third inner surface forming a second right-angle trapezoid, the third inner surface being adjacent to the other one of the two of the four perimeters being not parallel to each other, and the third inner surface having a second abrasive exterior surface; wherein the first right-angle trapezoid of the second inner surface is complementary to the second right-angle trapezoid of the third inner surface; a fourth inner surface having a third convex surface that is adjacent to the second inner surface and adjacent to the third inner surface, the fourth inner surface having a third abrasive exterior surface; and a fifth inner surface have a fourth convex surface, the fifth inner surface being adjacent to the second inner surface, adjacent to the third inner surface and adjacent to the fourth inner surface.