Seat and lumbar support cushion

Abstract

In one embodiment, the present application discloses a 2-component seat and lumbar support cushion combination comprising: a seat support cushion comprising a top face, a bottom face, a front edge and a rear edge, wherein the seat support cushion is variably padded at the front edge and at the rear edge; a lumbar support cushion comprising a front face and a back face, wherein at least a part of the front face is convex-shaped; wherein the seat support cushion is optionally detachably attached to the lumbar support cushion; wherein when a user sits on the seat support cushion, the rear edge of the seat support cushion is at a position that is elevated above the front edge such that the rear edge anteriorly tilts the user's pelvis toward a more positive anterior tilt angle; and wherein the user's natural lumbar lordosis is further passively supported by the convex shape of the lumbar support cushion.

What is claimed is: 
     
         1 . A 2-component seat and lumbar support cushion combination comprising:
 a seat support cushion comprising a top face, a bottom face, a front edge and a rear edge, wherein the seat support cushion is variably padded at the front edge and at the rear edge;   a lumbar support cushion comprising a front face and a back face, wherein at least a part of the front face is convex-shaped;   wherein the seat support cushion is optionally detachably attached to the lumbar support cushion;   wherein when a user sits on the seat support cushion, the rear edge of the seat support cushion is at a position that is elevated above the front edge such that the rear edge anteriorly tilts the user's pelvis toward a more positive anterior tilt angle; and   wherein the user's natural lumbar lordosis is further passively supported by the convex shape of the lumbar support cushion.   
     
     
         2 . A 2-component seat and lumbar support cushion combination comprising:
 a seat support cushion comprising a top face, a bottom face, a front edge and a rear edge, wherein the seat support cushion is variably padded at the front edge and at the rear edge;   a lumbar support cushion comprising a front face and a back face;   wherein the seat support cushion is optionally detachably attached to the lumbar support cushion; and   wherein when a user sits on the seat support cushion, the rear edge of the seat support cushion supports the user's pelvis such that the user's pelvis is raised or elevated above the knee at an angle of at least about 10 degrees above horizontal relative to the user's knee when the user is sitting upright.   
     
     
         3 . The 2-component seat and lumbar support cushion of  claim 1 , wherein when a user sits on the seat support cushion, the rear edge of the seat support cushion supports the user's pelvis such that the user's pelvis is raised or elevated above the knee at an angle of at least about 15 degrees or more above horizontal relative to the user's knee when the user is sitting upright. 
     
     
         4 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the seat support cushion is attached to the lumbar support cushion by a detachable attachment selected from the group consisting of hooks, hoop closures, loop closures such as Velcro™, snaps, zippers, drawstring, connecting hooks, or a combination thereof. 
     
     
         5 . The 2-component seat and lumbar support cushion of, wherein at least a part of the rear edge of the seat support cushion defines a width that is thicker than the width of the front edge of the seat support cushion. 
     
     
         6 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the seat support cushion comprises a one-way air valve for inflating the seat cushion to the desired comfort level and support. 
     
     
         7 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the seat support cushion is shaped as a rhomboid or wedge shape, where the rear edge of the seat support cushion slopes down toward the front edge at a slope of between 3 to 25 degrees. 
     
     
         8 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the seat support cushion has a width of between 9 and 14 inches, the depth of between 9 and 16 inches, the rear edge having a back width or thickness between 1 and 3 inches, and the front edge having width of between 0.5 inch to 2 inches. 
     
     
         9 . The 2-component seat and lumbar support cushion of  claim 1 , wherein at least one of the seat support cushion or the lumbar support cushion is covered by a removable cover. 
     
     
         10 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the lumbar support cushion has one, two or three adjustable, extendable straps for positioning and holding the lumbar support cushion at a desired position on the chair back support. 
     
     
         11 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the lumbar support cushion is shaped or dimensioned to engage, conform and provide longitudinal support along the longitudinal axis of the user's lumbar spine to maintain the natural curvature of the user's spine. 
     
     
         12 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the lumbar support cushion is generally arcuate in shape to provide a smooth and fitting interface for engaging and supporting the user's spine. 
     
     
         13 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the lumbar support cushion is generally convex shaped and having a width of between 9 and 14 inches, a vertical height of between 9 and 16 inches and a depth of between 1 and 5 inches. 
     
     
         14 . The 2-component seat and lumbar support cushion of  claim 1 , further comprising a heating element, such as a heating gel, and electrical outlet for independently warming the seat support cushion and the lumbar support cushion. 
     
     
         15 . The 2-component seat and lumbar support cushion of  claim 1 , further comprising a cooling element, such as a cooling liquid or cooling gel, and electrical outlet for independently cooling the seat support cushion and the lumbar support cushion. 
     
     
         16 . The 2-component seat and lumbar support cushion of  claim 1 , further comprising a heating element, such as a heating gel, and electrical outlet for independently warming the seat support cushion and the lumbar support cushion; and a cooling element, such as a cooling liquid or cooling gel, and electrical outlet for independently cooling the seat support cushion and the lumbar support cushion. 
     
     
         17 . The 2-component seat and lumbar support cushion of  claim 1 , wherein the bottom face comprises of a tacky or gripping material. 
     
     
         18 . The 2-component seat and lumbar support cushion of  claim 1 , further comprising a rocking element on the bottom face of the seat support cushion for further adjusting and aligning the user's spine for optimal comfort. 
     
     
         19 . The 2-component seat and lumbar support cushion of  claim 6 , wherein the one-way air valve comprises a spring-loaded valve mechanism for inflating and deflating the cushion.