An outsole for an orthopedic device includes a heel part, a forefoot part, and a mid-foot part separating the heel part from the forefoot part. A longitudinal axis extends in a longitudinal direction between an anterior end of the forefoot part and a posterior end of the heel part. A transverse axis
An outsole for an orthopedic device includes a heel part, a forefoot part, and a mid-foot part separating the heel part from the forefoot part. A longitudinal axis extends in a longitudinal direction between an anterior end of the forefoot part and a posterior end of the heel part. A transverse axis intersects the longitudinal axis and extends in a transverse direction between a lateral edge of the outsole and a medial edge of the outsole. A bottom surface extends along the longitudinal axis and between the medial and lateral edges. The bottom surface defines an apex at the intersection of the longitudinal and transverse axes and at least one apical line passing through the apex and subtending an oblique angle to the longitudinal axis. The bottom surface curves through the apex and along the at least one apical line in both the longitudinal and transverse directions.
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1. An outsole for an orthopedic device comprising: a heel part, a forefoot part, and a mid-foot part separating the heel part from the forefoot part;a longitudinal axis extending in a longitudinal direction between an anterior end of the forefoot part and a posterior end of the heel part;a transvers
1. An outsole for an orthopedic device comprising: a heel part, a forefoot part, and a mid-foot part separating the heel part from the forefoot part;a longitudinal axis extending in a longitudinal direction between an anterior end of the forefoot part and a posterior end of the heel part;a transverse axis intersecting the longitudinal axis and extending in a transverse direction between a lateral edge of the outsole and a medial edge of the outsole;an upper surface, a bottom surface, and a thickness defined between the upper and bottom surfaces, the bottom surface extending along the longitudinal axis and between the medial and lateral edges, the bottom surface defining an apex at the intersection of the longitudinal axis and the transverse axis and at least one apical line passing through the apex and subtending an oblique angle to the longitudinal axis, wherein the apex is located at a maximum thickness of the outsole and the bottom surface curves through the apex and along the at least one apical line in both the longitudinal direction and the transverse direction and the bottom surface defines a substantially same radius of curvature along the at least one apical line and the longitudinal axis; anda tread section on the bottom surface including a tread pattern comprising a plurality of angled grooves surrounding an interior region including the apex; the interior region being smoother than the tread pattern, the tread section arranged so that when weight is placed on the outsole over the interior region the tread section distributes at least some of the weight away from the interior region to the tread sectionthe interior region surrounding the apex and having an outer periphery defining a saltire shape tapering inward from a posterior end of the interior region to the apex and expanding outward from the apex toward an anterior end of the interior region so that the interior region directs a heel strike of a foot of a user toward the apex and limits interference by the tread pattern from a mid-stance of the foot toward a toe-off of the foot. 2. The outsole of claim 1, wherein the oblique angle is between about 5 degrees and about 7 degrees. 3. The outsole of claim 1, wherein the bottom surface curves in the transverse and longitudinal directions from the apex in the direction of the lateral edge. 4. The outsole of claim 1, wherein the bottom surface curves downwardly along the at least one apical line from the direction of the lateral edge of the heel part toward the apex. 5. The outsole of claim 1, wherein the bottom surface curves upwardly along the at least one apical line from the apex toward the medial edge of the forefoot part. 6. The outsole of claim 1, wherein the at least one apical line includes a first apical line and a second apical line intersecting the first apical line at the apex, the second apical line subtending another oblique angle to the longitudinal axis. 7. The outsole of claim 6, wherein a radius of curvature of the bottom surface along the first apical line is substantially the same as a radius of curvature of the bottom surface along the second apical line. 8. The outsole of claim 1, wherein the interior region defines a prolate spheroid face on the bottom surface. 9. The outsole of claim 1, wherein the at least one apical line extends diagonally through the interior region. 10. The outsole of claim 1, wherein the apex is located in the mid-foot part. 11. The outsole of claim 1, wherein the upper surface is arranged for attachment to a plantar portion of an orthopedic device; and further comprising a toe protector portion extending generally upright from the upper surface at the anterior end of the forefoot part. 12. The outsole of claim 11, wherein the thickness of the outsole between the upper surface and the bottom surface in the heel part is greater than the thickness of the outsole between the upper surface and the bottom surface in the forefoot part. 13. An outsole for an orthopedic device comprising: a heel part,a forefoot part;a mid-foot part separating the heel part from the forefoot part;a longitudinal axis extending between an anterior end of the forefoot part and a posterior end of the heel part;a transverse axis intersecting the longitudinal axis and extending between a lateral edge of the outsole and a medial edge of the outsole;an upper surface, a bottom surface, and a thickness defined between the upper and bottom surfaces, the bottom surface defining an apex on the mid-foot part and at least one apical line passing through the apex and subtending an oblique angle to the longitudinal axis, wherein the apex is located at a maximum thickness of the outsole and the bottom surface curves through the apex about both the longitudinal axis and the transverse axis and the bottom surface defines a substantially same radius of curvature along the least one apical line and the longitudinal axis; anda tread section on the bottom surface including a tread pattern comprising a plurality of angled grooves surrounding an interior region including the apex; the interior region being smoother than the tread pattern, the tread section arranged so that when weight is placed on the upper surface of the outsole over the interior region the tread section distributes at least some of the weight away from the interior region to the tread sectionthe interior region surrounding the apex and having an outer periphery defining a saltire shape tapering inward from a posterior end of the interior region to the apex and expanding outward from the apex toward an anterior end of the interior region so that the interior region directs a heel strike of a foot of a user toward the apex and limits interference by the tread pattern from a mid-stance of the foot toward a toe-off of the foot. 14. The outsole of claim 13, wherein the bottom surface curves upward toward the upper surface from the apex and in the direction of the medial edge of the forefoot part. 15. The outsole of claim 14, wherein the bottom surface curves upward toward the upper surface from the apex and in the direction of the anterior end of the forefoot part. 16. An orthopedic device comprising: a base shell having a plantar portion and forming an opening in an anterior aspect thereof,a dorsal shell contoured to generally correspond to the opening of the base shell; andan outsole including: an upper surface secured to the plantar portion of the base shell; anda bottom surface opposite the upper surface, the bottom surface extending along a longitudinal axis between an anterior end of the outsole and a posterior end of the outsole;a thickness defined between the upper and bottom surfaces;a transverse axis intersecting the longitudinal axis and extending in a transverse direction between a lateral edge of the outsole and a medial edge of the outsole;an apex on the bottom surface at the intersection of the longitudinal axis and the transverse axis, the apex located at a maximum thickness of the outsole;at least one apical line passing through the apex and subtending an oblique angle to the longitudinal axis, wherein the bottom surface curves about both the longitudinal axis and the transverse axis through the apex and defines a substantially same radius of curvature along the at least one apical line and the longitudinal axis; anda tread section on the bottom surface including a tread pattern comprising a plurality of angled grooves surrounding an interior region including the apex; the interior region being smoother than the tread pattern, the tread section arranged so that when weight is placed on the upper surface of the outsole over the interior region the tread section distributes at least some of the weight away from the interior region to the tread sectionthe interior region surrounding the apex and having an outer periphery defining a saltire shape tapering inward from a posterior end of the interior region to the apex and expanding outward from the apex toward an anterior end of the interior region so that the interior region directs a heel strike of a foot of a user toward the apex and limits interference by the tread pattern from a mid-stance of the foot toward a toe-off of the foot. 17. The orthopedic device of claim 16, wherein the radius of curvature of the bottom surface along the at least one apical line varies.
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