Lumbar support cushion

1. A lumbar support cushion, comprising:

a ridged section, comprising a plurality of alternating ridges and depressions; and

a flat bottom surface, which is configured to stabilize the lumbar support cushion against a seating surface;

wherein the ridged section is configured to provide support to a spinal column of a user when the user is seated against the lumbar support cushion;

wherein the ridged section is configured such that a shape of the plurality of alternating ridges and depressions is configured to align with a shape of a plurality of vertebrae of a spinal column of the user, such that each of the depressions is configured to receive a separate spinous process of the spinal column and each of the ridges is configured to fit into a gap between an adjacent pair of spinous processes of the spinal column;

wherein the flat bottom surface is configured with a bottom inclination angle between the flat bottom surface and a projection line extending from a bottom edge of a rear surface of the lumbar support cushion, wherein the bottom inclination angle is in a range of 10 to 85 degrees;

whereby the lumbar support cushion is configured to stabilize a seating position of the user, thereby providing relief from pressure and pain to a lower back of the user.

2. The lumbar support cushion of claim 1 , further comprising:

a. a right protruding side support, which is configured to support a right side of a torso of the user that is seated against the lumbar support cushion; and

b. a left protruding side support, which is configured with a shape, which is symmetrical with a shape of the right protruding side support, with respect to a top to bottom centerline of the lumbar support cushion, such that the left protruding side support is configured to support a left side of the torso of the user that is seated against the lumbar support cushion;

wherein the ridged section is configured to be symmetric with respect to the top to bottom centerline, such that the ridged section is positioned between the right and left protruding side supports.

3. The lumbar support cushion of claim 1 , further comprising:

a. a top right extension, which is positioned in a top right area of the lumbar support cushion, such that the top right extension is configured to support a right side of the user's back;

b. a top left extension, which is configured with a shape, which is symmetrical with a shape of the top right extension, with respect to a top to bottom centerline of the lumbar support cushion, such that the top left extension is positioned in a top left area of the lumbar support cushion, such that the top left extension is configured to support a left side of the user's back; and

c. a top cutout, which is positioned between the top right and top left extensions, whereby the top cutout is configured to provide pressure relief to an area of the users back between the right and left sides of the user's back.

4. The lumbar support cushion of claim 1 , further comprising a back strap, which is connected to a rear surface of the lumbar support cushion, such that the back strap is configured to secure the lumbar support cushion to an object.

5. The lumbar support cushion of claim 1 , wherein an inner core of the lumbar support cushion is made of open cell flexible polyurethane foam with a density in a range from 20 to 60 kg/m 3 .

6. The lumbar support cushion of claim 1 , further comprising a cushion cover, which covers the lumbar support cushion.

7. The lumbar support cushion of claim 6 , wherein the cushion cover is removable.

8. The lumbar support cushion of claim 1 , wherein the bottom inclination angle is in a range of 20 to 75 degrees.

9. The lumbar support cushion of claim 1 , wherein the bottom inclination angle is in a range of 30 to 60 degrees.

10. The lumbar support cushion of claim 1 , wherein the right and left protruding side supports are configured with respectively right and left rear surfaces, which are configured with a shape that fits with corresponding right and left side supports of a seat.

11. A method of configuring a support contour of a cushion to promote a healthy and comfortable sitting position, comprising: configuring a cushion with a ridged back section, the ridged back section defined by a plurality of alternating ridges and depressions, such that a user's spine is supported by the ridged back section when the user is seated against the cushion, thus reducing pain and pressure to a lower back of the user;

wherein the ridged back section is configured such that a shape of the plurality of alternating ridges and depressions is configured to align with a shape of a plurality of vertebrae of a spinal column of the user, such that each of the depressions is configured to receive a separate spinous process of the spinal column and each of the ridges is configured to fit into a gap between an adjacent pair of spinous processes of the spinal column;

wherein a flat bottom surface of the cushion is configured with a bottom inclination angle between the flat bottom surface and a projection line extending from a bottom edge of a rear surface of the lumbar support cushion, wherein the bottom inclination angle is in a range of 10 to 85 degrees.

12. The method of configuring a support contour of a cushion of claim 11 , further comprising: defining right and left protruding side supports, which are contoured shapes configured to position, guide and support corresponding right and left sides of a torso of the user;

wherein the ridged section is configured to be symmetric with respect to a top to bottom centerline of the cushion, such that the ridged section is positioned between the right and left protruding side supports.

13. The method of configuring a support contour of a cushion of claim 11 , further comprising:

a. defining a top right extension, which is positioned in a top right area of the lumbar support cushion, such that the top right extension is configured to support a right side of the user's back;

b. defining a top left extension, which is configured with a shape, which is symmetrical with a shape of the top right extension, with respect to a top to bottom centerline of the lumbar support cushion, such that the top left extension is positioned in a top left area of the lumbar support cushion, such that the top left extension is configured to support a left side of the user's back; and

c. defining a top cutout, which is positioned between the top right and top left extensions, whereby the top cutout is configured to provide pressure relief to an area of the users back between the right and left sides of the user's back.

14. The method of configuring a support contour of a cushion of claim 11 , wherein the cushion is further configured with a cushion cover.

15. A lumbar support cushion, comprising: a ridged section, comprising a plurality of alternating ridges and depressions, wherein the ridged section is configured to provide support to a spinal column of a user when the user is seated against the lumbar support cushion; a right protruding side support, which is configured to support a right side of a torso of the user that is seated against the lumbar support cushion; and a left protruding side support, which is configured with a shape, which is symmetrical with a shape of the right protruding side support, with respect to a top to bottom centerline of the lumbar support cushion, such that the left protruding side support is configured to support a left side of the torso of the user that is seated against the lumbar support cushion; and a flat bottom surface, which is configured to stabilize the lumbar support cushion against a seating surface, wherein the ridged section is configured such that a shape of the plurality of alternating ridges and depressions is configured to align with a shape of a plurality of vertebrae of a spinal column of the user, such that each of the depressions is configured to receive a separate spinous process of the spinal column and each of the ridges is configured to fit into a gap between an adjacent pair of spinous processes of the spinal column; wherein the flat bottom surface is configured with a bottom inclination angle between the flat bottom surface and a projection line extending from a bottom edge of a rear surface of the lumbar support cushion, whereby the lumbar support cushion is configured to stabilize a seating position of the user, thereby providing relief from pressure and pain to a lower back of the user.

16. The lumbar support cushion of claim 15 , further comprising:

a. a top right extension, which is positioned in a top right area of the lumbar support cushion, such that the top right extension is configured to support a right side of the user's back;

b. a top left extension, which is configured with a shape, which is symmetrical with a shape of the top right extension, with respect to a top to bottom centerline of the lumbar support cushion, such that the top left extension is positioned in a top left area of the lumbar support cushion, such that the top left extension is configured to support a left side of the user's back; and

c. a top cutout, which is positioned between the top right and top left extensions, whereby the top cutout is configured to provide pressure relief to an area of the users back between the right and left sides of the user's back.

17. The lumbar support cushion of claim 15 , wherein the flat bottom surface is configured with a bottom inclination angle in a range of 10 to 85 degrees.