Pressure reduction healthcare mattress system
View Patent ↗A foam core for a pressure reduction healthcare mattress is disclosed. It includes a top layer made of memory retention foam, a middle layer made of foam and having a convex shape that is higher along a longitudinal center line than along the two sides, and a lower support layer made of foam. The top layer is made of a torso piece and a softer foot/lower leg piece. The middle layer includes a heel pillow that fits into a heel pillow cavity in the foam, the heel pillow including layers of fiber material over a crown shaped foam insert. The lower support layer has a sloped portion in a lower leg section that slopes down toward a heel end of the foam core. Also disclosed is a pressure reduction healthcare mattress that includes the foam core and a cover.
1. A foam core for a pressure reduction healthcare mattress, comprising:
a top layer made of memory retention foam materials and having a uniform thickness;
a middle layer located immediately below the top layer, made of a foam material and having a convex shape that is higher along a longitudinal center line than along two longitudinal sides, wherein the top layer has a shape conforming to the convex shape of the middle layer; and
a lower support layer located immediately below the middle layer and made of a foam material, wherein the lower support layer defines a sloped portion in a lower leg section that slopes down toward a heel end of the foam core.
2. The foam core of claim 1 , wherein the top layer is made of first and second pieces of memory retention foam materials connected together, the first piece being located in a torso section and the second piece being located in a foot and lower leg section of the foam core, the second piece of foam having a lower density than the first piece.
3. The foam core of claim 1 , wherein the middle layer define a first die shaped pattern having small die shaped “+” in a head section and a second die shaped pattern having wider and more open die cut “+” in a scapula through upper leg section of the foam core.
4. The foam core of claim 3 , wherein the middle layer has an integral, non-die cut internal side rail portion along each side border of the foam core.
5. The foam core of claim 3 , wherein the middle layer further defines a heel pillow cavity in a heel section of the foam core.
6. The foam core of claim 5 , further comprising a heel pillow that fits into the heel pillow cavity.
7. The foam core of claim 6 , wherein the heel pillow comprises one or more layers of fiber material and a foam insert under the fiber material, the foam insert having a convex shape that is higher along a longitudinal center line than along two longitudinal sides.
8. A pressure reduction healthcare mattress comprising the foam core of claim 1 and a cover for covering the foam core.
9. A foam core for a pressure reduction healthcare mattress, comprising:
a top layer having a uniform thickness and made of first and second pieces of memory retention foam materials connected together, the first piece being located in a torso section and the second piece being located in a foot and lower leg section of the foam core, the second piece of foam having a lower density than the first piece;
a middle layer located immediately below the top layer, made of a foam material and having a convex shape that is higher along a longitudinal center line than along two longitudinal sides, wherein the top layer has a shape conforming to the convex shape of the middle layer, the middle layer defining a heel pillow cavity in a heel section of the foam core;
a heel pillow that fits into the heel pillow cavity, the heel pillow comprises one or more layers of fiber material and a foam insert under the fiber material; and
a lower support layer located immediately below the middle layer and made of a foam material, the lower support layer defining a sloped portion in a lower leg section that slopes down toward a heel end of the foam core.
10. A pressure reduction healthcare mattress comprising the foam core of claim 9 and a cover for covering the foam core.