Patent ID: 7607738
Filing Date: 2009-10-27
Classification: A47C

Abstract:
1. A contoured seating surface comprising: a seat portion having a surface configured to extend along thighs of a sitter and including a pair of spaced protrusions extending upward from the surface at positions corresponding to piriformis muscles of the sitter, wherein the protrusions are configured to apply targeted pressure to the piriformis muscles of the sitter when sitting in said contoured seating surface; and a back portion extending distally from, and at an angle to, said seat portion, wherein the seat and back portions are included in a sheet of finite thickness formed of a stiff material, wherein the back portion is at least partially bounded by a distal edge located distally from the seat portion and defines a pocket configured to accommodate a sacrum and coccyx of the sitter, said pocket including a concave contour relative to a seated position of the sitter that defines a volume that remains substantially unoccupied, and wherein said back portion is configured to flex inward to laterally compress and support a lower back portion of the sitter when sitting in said contoured seating surface.