US20140047642A1 - Sitting device for prevention of spinal diseases - Google Patents
Sitting device for prevention of spinal diseases Download PDFInfo
- Publication number
- US20140047642A1 US20140047642A1 US13/580,669 US201213580669A US2014047642A1 US 20140047642 A1 US20140047642 A1 US 20140047642A1 US 201213580669 A US201213580669 A US 201213580669A US 2014047642 A1 US2014047642 A1 US 2014047642A1
- Authority
- US
- United States
- Prior art keywords
- padded member
- hard block
- sitter
- height
- sitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C9/00—Stools for specified purposes
- A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
- A47C9/005—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects with forwardly inclined seat, e.g. with a knee-support
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C15/00—Other seating furniture
- A47C15/004—Seating furniture for specified purposes not covered by main groups A47C1/00 or A47C9/00
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/16—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats of legless type, e.g. with seat directly resting on the floor; Hassocks; Pouffes
Definitions
- the present invention relates to a sitting device used for sitting on flat surfaces and that device is able to prevent spinal diseases, such as cervical, thoracic, and lumbar diseases, to occur.
- Zafus is one of those. Stuffed with fluffy, soft, downy materials, a zafu raises the hips and partially absorbs the reaction force generated by the floor under the gravity force of the body of a sitter, making sitting in a leg-folding posture or the crossed-legged posture, a.k.a. Lotus sitting posture, more comfortable.
- a zafu does not provide a stable support; the sitter's pelvis can tilt forwards and backwards freely, eventually causing back pain and other spinal problems.
- That sitting device must provide stable support that keeps a sitter's pelvis always in its neutral position, allowing the sitter to stay in a correct sitting posture.
- the sitting device therefore, is able to prevent many spinal diseases related to wrong sitting postures including cervical, thoracic, and lumbar diseases. It is an object of the present invention to provide such a sitting device.
- the sitting device comprises a padded member, a thin pad extended forwardly from the padded member, and a hard block fully inserted inside the padded member.
- the padded member has a generally right triangular shape, and is made of resilient materials such as foam, rubber, or cotton to make the device comfortable to sit on.
- the hypotenuse surface of the padded member is undulating ergonomically to ensure extra comfort for the sitter.
- the area of the hypotenuse surface of the padded member together with the area of the thin pad is wider than the total area of a sitter's buttocks, upper legs, and knees, so that the sitter can sit, in a leg-folding posture, fully on the sitting device without any part of his body touching the flat surface.
- the hard block is made of a non-resilient material such as wood, polystyrene foam, or hard rubber. The hard block is able to tolerate, without rupturing, the gravity force on a mass of an adult's body with a shape and size similar to those of the adult's buttocks.
- the hard block is inserted completely inside the right angle area of the padded member.
- the height of the front side of the hard block is greater than the distance from the lowest point of the sitter's coccyx to the lowest point of his tuberosity of ischium.
- Both the padded member and the hard block have a flat bottom side to ensure stability.
- a sitter needs to sit in a leg-folding sitting posture; in which, his buttocks are on top of the highest portion of the padded member, his upper legs lie along the hypotenuse surface of the padded member, and both of his left and right lower legs must rest inside the thin pad and fold along the long side of the thin pad and the right one is on top of the left one.
- the sitter can also sits in a cross-legged sitting posture a.k.a. Lotus sitting posture.
- the sitter needs to adjust his buttocks so that his sacrum and coccyx are elevated by the top part of the hard block, and his ischium stays close to the front side of the hard block.
- FIG. 1 is a left perspective view of a sitting device for prevention of spinal diseases according to the invention.
- FIG. 2 is a right perspective view of the sitting device shown in FIG. 1
- FIG. 3 is a cross-sectional view of the sitting device of FIG. 1 along the line A-A′ shown in FIG. 2
- FIG. 4 is a cross-sectional view of the sitting device of FIG. 1 along the line B-B′ shown in FIG. 2
- FIG. 5 illustrates how to use the pillow of FIG. 1
- the present invention provides a sitting device that is used for sitting on flat surfaces.
- the sitting device is able to keep a sitter in a correct sitting posture by keeping his pelvis always in its neutral position.
- the sitting device 100 comprises a padded member 200 , a thin pad 300 extended forwardly from the padded member 200 , and a hard block 400 fully inserted inside the padded member 200 .
- the padded member 200 has a generally right triangular shape, and is made of resilient materials such as foam, rubber, or cotton to make the device 100 comfortable to sit on.
- the hypotenuse surface 201 of the padded member 200 is undulating ergonomically to ensure extra comfort for the sitter.
- the area of the hypotenuse surface 201 of the padded member 200 together with the area of the thin pad 300 is wider than the total area of a sitter's buttocks, upper legs, and knees, so that the sitter can sit fully on the sitting device 100 without any part of his body touching the flat surface.
- the hard block 400 is made of a non-resilient material such as wood, polystyrene foam, or hard rubber.
- the hard block 400 is able to tolerate, without rupturing, the gravity force on a mass of an adult's body with a shape and size similar to those of the adult's buttocks.
- the hard block 400 is inserted completely inside the right angle area of the padded member 200 .
- the height H indicated in FIG.
- a sitter needs to sit in a leg-folding sitting posture in which, his buttocks are on top of the highest portion T, indicated in FIG. 3 , of the padded member 200 , his upper legs lie along the hypotenuse surface 201 of the padded member 200 , and both of his left and right lower legs must rest inside the thin pad 300 and fold along the long side L, indicated in FIG. 2 , of the thin pad 300 , and the right one is on top of the left one.
- the sitter can also sits in a cross-legged sitting posture a.k.a. Lotus sitting posture.
- the sitter needs to adjust his buttocks so that his sacrum is elevated by the highest area 401 , his coccyx rests on the plateau area 402 , and his ischium stays close to the front side 403 of the hard block 400 . That way, his pelvis is always “locked” in its neutral position, making the sitter sit in a correct posture which prevents spinal diseases related to wrong sitting postures including cervical, thoracic, and lumbar diseases to occur. If there were no hard block 400 inserted inside the padded member 200 as described, the sitter's pelvis would tilt freely, leading to wrong sitting postures.
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A sitting device for prevention of spinal diseases comprises a padded member, a thin pad extended forwardly from the padded member, and a hard block fully inserted inside the padded member. The padded member has a generally right triangular shape, and is made of resilient materials. The hypotenuse surface of the padded member is undulating ergonomically. The hard block is made of a non-resilient material, and is able to tolerate, without rupturing, the gravity force on a mass of an adult's body with a shape and size similar to those of the adult's buttocks. The hard block is inserted completely inside the right angle area of the padded member. The height of the front side of the hard block is greater than the distance from the lowest point of the sitter's coccyx to the lowest point of his tuberosity of ischium. Both the padded member and the hard block have a flat bottom side to ensure stability.
Description
- The present invention relates to a sitting device used for sitting on flat surfaces and that device is able to prevent spinal diseases, such as cervical, thoracic, and lumbar diseases, to occur.
- Wrong sitting postures lead to many spinal diseases. Sitting in a correct posture means keeping the pelvis in its neutral position, i.e. in the same of its position when a person is standing. When the pelvis is in a neutral position, they allows the spine to stay in its natural curve, meaning the whole body weight is distributed and balanced evenly upon the vertebrates and discs of the spine. As a result, spinal diseases are less likely to happen. However, when sitting on flat surfaces, such as the floor, it is very hard to always sit in a correct posture and it is even harder to do so without any supporting devices; the pelvis tilts forwards or backwards, causing back pain due to excessive pressure and muscle imbalances that occur with pelvic tilt abnormalities. Over time, sitting in wrong postures leads to many spinal diseases such as cervical, thoracic, and lumbar diseases. As a result, the person experiences back, neck and joint pain, tension-headaches, fatigue and stress related conditions, and many other health problems.
- In fact, many people have to sit on flat surfaces, such as on the floor, for a long time due to different reasons; for example, to do their work, to meditate, or to attend religious sessions. Without any supporting device, they soon experience back pain and commonly encounter one or some of the spinal diseases mentioned above.
- Many devices have been invented to provide support when sitting on flat surfaces. However, they do not provide stable support that keeps the pelvis always in its neutral position, the key to sitting in a correct posture. Zafus is one of those. Stuffed with fluffy, soft, downy materials, a zafu raises the hips and partially absorbs the reaction force generated by the floor under the gravity force of the body of a sitter, making sitting in a leg-folding posture or the crossed-legged posture, a.k.a. Lotus sitting posture, more comfortable. However, due to the fluffy materials used, a zafu does not provide a stable support; the sitter's pelvis can tilt forwards and backwards freely, eventually causing back pain and other spinal problems. U.S. Pat. No. 6,141,807 discloses an adjustable height pillow that can “encourage proper sitting positions.” However, the pillow is stuffed with a soft flexible material, therefore cannot provide a stable support to keep the pelvis always in its neutral position. U.S. Pat. No. 5,652,983 presents a sit/sleep constructed pillow that can provide comfort when sitting on it. However, it also does not provide stable support that can keep the pelvis in its neutral position.
- It shows that there is a need to invent a device used for sitting on flat surfaces. That sitting device must provide stable support that keeps a sitter's pelvis always in its neutral position, allowing the sitter to stay in a correct sitting posture. The sitting device, therefore, is able to prevent many spinal diseases related to wrong sitting postures including cervical, thoracic, and lumbar diseases. It is an object of the present invention to provide such a sitting device.
- According to the invention, the sitting device comprises a padded member, a thin pad extended forwardly from the padded member, and a hard block fully inserted inside the padded member. Looked from the left or the right side, the padded member has a generally right triangular shape, and is made of resilient materials such as foam, rubber, or cotton to make the device comfortable to sit on. The hypotenuse surface of the padded member is undulating ergonomically to ensure extra comfort for the sitter. The area of the hypotenuse surface of the padded member together with the area of the thin pad is wider than the total area of a sitter's buttocks, upper legs, and knees, so that the sitter can sit, in a leg-folding posture, fully on the sitting device without any part of his body touching the flat surface. The hard block is made of a non-resilient material such as wood, polystyrene foam, or hard rubber. The hard block is able to tolerate, without rupturing, the gravity force on a mass of an adult's body with a shape and size similar to those of the adult's buttocks. The hard block is inserted completely inside the right angle area of the padded member. The height of the front side of the hard block is greater than the distance from the lowest point of the sitter's coccyx to the lowest point of his tuberosity of ischium. Both the padded member and the hard block have a flat bottom side to ensure stability.
- To use the sitting device properly, a sitter needs to sit in a leg-folding sitting posture; in which, his buttocks are on top of the highest portion of the padded member, his upper legs lie along the hypotenuse surface of the padded member, and both of his left and right lower legs must rest inside the thin pad and fold along the long side of the thin pad and the right one is on top of the left one. Instead, the sitter can also sits in a cross-legged sitting posture a.k.a. Lotus sitting posture. Importantly, the sitter needs to adjust his buttocks so that his sacrum and coccyx are elevated by the top part of the hard block, and his ischium stays close to the front side of the hard block. That way, his pelvis is always “locked” in its neutral position, making the sitter sit in a correct posture which prevents spinal diseases related to wrong sitting postures including cervical, thoracic, and lumbar diseases to occur. If there were no hard block inserted inside the padded member as described, the sitter's pelvis would tilt freely, leading to wrong sitting postures.
- The invention will be better understood when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
-
FIG. 1 is a left perspective view of a sitting device for prevention of spinal diseases according to the invention. -
FIG. 2 is a right perspective view of the sitting device shown inFIG. 1 -
FIG. 3 is a cross-sectional view of the sitting device ofFIG. 1 along the line A-A′ shown inFIG. 2 -
FIG. 4 is a cross-sectional view of the sitting device ofFIG. 1 along the line B-B′ shown inFIG. 2 -
FIG. 5 illustrates how to use the pillow ofFIG. 1 - The present invention provides a sitting device that is used for sitting on flat surfaces. The sitting device is able to keep a sitter in a correct sitting posture by keeping his pelvis always in its neutral position.
- According to the invention, the
sitting device 100, as shown inFIG. 1 , comprises apadded member 200, athin pad 300 extended forwardly from thepadded member 200, and ahard block 400 fully inserted inside thepadded member 200. Looked from theleft side 202L, indicated inFIG. 1 , or theright side 202R, indicated inFIG. 2 , thepadded member 200 has a generally right triangular shape, and is made of resilient materials such as foam, rubber, or cotton to make thedevice 100 comfortable to sit on. Thehypotenuse surface 201 of thepadded member 200 is undulating ergonomically to ensure extra comfort for the sitter. The area of thehypotenuse surface 201 of thepadded member 200 together with the area of thethin pad 300 is wider than the total area of a sitter's buttocks, upper legs, and knees, so that the sitter can sit fully on thesitting device 100 without any part of his body touching the flat surface. Thehard block 400 is made of a non-resilient material such as wood, polystyrene foam, or hard rubber. Thehard block 400 is able to tolerate, without rupturing, the gravity force on a mass of an adult's body with a shape and size similar to those of the adult's buttocks. Thehard block 400 is inserted completely inside the right angle area of thepadded member 200. The height H, indicated inFIG. 3 , of thefront side 403 of thehard block 400, is greater than the distance from the lowest point of the sitter's coccyx to the lowest point of his tuberosity of ischium. Both thepadded member 200 and thehard block 400 have a flat bottom side to ensure stability. - To use the
sitting device 100 properly, a sitter needs to sit in a leg-folding sitting posture in which, his buttocks are on top of the highest portion T, indicated inFIG. 3 , of thepadded member 200, his upper legs lie along thehypotenuse surface 201 of thepadded member 200, and both of his left and right lower legs must rest inside thethin pad 300 and fold along the long side L, indicated inFIG. 2 , of thethin pad 300, and the right one is on top of the left one. Instead, the sitter can also sits in a cross-legged sitting posture a.k.a. Lotus sitting posture. Importantly, the sitter needs to adjust his buttocks so that his sacrum is elevated by the highest area 401, his coccyx rests on the plateau area 402, and his ischium stays close to thefront side 403 of thehard block 400. That way, his pelvis is always “locked” in its neutral position, making the sitter sit in a correct posture which prevents spinal diseases related to wrong sitting postures including cervical, thoracic, and lumbar diseases to occur. If there were nohard block 400 inserted inside the paddedmember 200 as described, the sitter's pelvis would tilt freely, leading to wrong sitting postures.
Claims (11)
1. (canceled)
2. (canceled)
3. A sitting device for prevention of spinal diseases comprising:
a padded member having a width, a flat bottom, a rearward portion having a height, a forward portion having a height less than the height of the rearward portion, and an undulating upper hypotenuse surface running from the rearward portion downwardly to the forward portion;
a thin pad having width, and a length extended forwardly from the forward portion of the padded member, the width and length of the thin pad being selected such that that a sitter can sit in a leg-folding posture fully on the hypotenuse surface of the padded member and the thin pad without touching a surface upon which the sitting device is placed; and
a hard block made of a non-resilient material located inside the rearward portion of the padded member, the hard block having a width substantially equal to the width of the padded member, a top surface of the hard block having a highest area having a height T at a rear side of the hard block, a flat bottom, and a plateau area having a height H at a front side of the hard block, the height H of the plateau area being less than the height T of the highest area, the height H of the plateau area being selected to be greater than a distance from a lowest point of an adult sitter's coccyx to a lowest point of the adult sitter's tuberosity of ischium;
such that when a sitter is sitting with the sitter's buttocks on the hypotenuse surface of the padded member with the sitter's sacrum over the highest area of the hard block, and with the sitter's folded legs on the thin pad, the sitter's coccyx rests on the plateau area of the top surface of the hard block, and the sitter's ischium is held adjacent to the front side of the hard block.
4. The sitting device of claim 3 , in which the non-resilient material of the hard block is selected from a group consisting of wood, polystyrene foam, and hard rubber.
5. The sitting device of claim 3 , in which the non-resilient material of the hard block is selected such that the hard block can support the mass of an adult's body without rupturing.
6. The sitting device of claim 3 , in which the hard block has a flat bottom.
7. The sitting device of claim 3 , in which the padded member has a generally right triangular shape from the side.
8. The sitting device of claim 3 , in which the hypotenuse surface of the padded member has an ergonomically undulating contour which steps downward in height from a highest portion at the rearward portion of the padded member to a plateau portion, a concave middle portion, to a lowest height at the forward portion.
9. The sitting device of claim 3 , in which the padded member is made of resilient material.
10. The sitting device of claim 9 , in which the resilient material of the padded member is selected from a group consisting of foam, rubber, and cotton.
11. The sitting device of claim 3 , in which the padded member has a flat bottom.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2012/054164 WO2014027221A1 (en) | 2012-08-15 | 2012-08-15 | A sitting device for prevention of spinal diseases |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140047642A1 true US20140047642A1 (en) | 2014-02-20 |
Family
ID=47018296
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/580,669 Abandoned US20140047642A1 (en) | 2012-08-15 | 2012-08-15 | Sitting device for prevention of spinal diseases |
US14/622,070 Active 2032-09-13 US9700147B2 (en) | 2012-08-15 | 2015-02-13 | Sitting device for prevention of spinal diseases |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/622,070 Active 2032-09-13 US9700147B2 (en) | 2012-08-15 | 2015-02-13 | Sitting device for prevention of spinal diseases |
Country Status (9)
Country | Link |
---|---|
US (2) | US20140047642A1 (en) |
EP (1) | EP2884872B1 (en) |
JP (1) | JP6486823B2 (en) |
KR (2) | KR101931519B1 (en) |
AU (2) | AU2015200734A1 (en) |
CA (1) | CA2881878C (en) |
HK (1) | HK1208136A1 (en) |
SG (1) | SG11201501073YA (en) |
WO (1) | WO2014027221A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9700160B2 (en) * | 2012-07-09 | 2017-07-11 | Loan Kim Thi Pham | Orthopedic pillow for treatment and prevention of lumbar and thoracic spine diseases |
WO2017152148A1 (en) * | 2016-03-04 | 2017-09-08 | Sorg Mary M | Sacroiliac treatment apparatus and method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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USD800852S1 (en) * | 2016-07-12 | 2017-10-24 | Stephen Flook | Exercise platform |
USD907941S1 (en) * | 2020-04-12 | 2021-01-19 | Jose Manuel Chanfrau, IV | Multiple height and slope pillow |
US11452392B1 (en) | 2022-04-22 | 2022-09-27 | Lloyd Ecker | System, apparatus, and method for supporting a body |
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CA2086391C (en) * | 1992-04-14 | 1996-09-24 | Patrick J. Coyne | Adjustable seat and back cushion |
JPH0670655U (en) * | 1993-03-24 | 1994-10-04 | 富二郎 徳田 | Cushion core |
US5652983A (en) | 1995-02-03 | 1997-08-05 | Kraemer; John A. | Sit/Sleep constructed pillow |
JPH09224783A (en) * | 1996-02-20 | 1997-09-02 | Masashi Yamazaki | Cushion differentiating height upon sitting on it |
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-
2012
- 2012-08-15 KR KR1020177027277A patent/KR101931519B1/en active IP Right Grant
- 2012-08-15 KR KR1020157004067A patent/KR20150047490A/en active Search and Examination
- 2012-08-15 SG SG11201501073YA patent/SG11201501073YA/en unknown
- 2012-08-15 JP JP2015527030A patent/JP6486823B2/en not_active Expired - Fee Related
- 2012-08-15 US US13/580,669 patent/US20140047642A1/en not_active Abandoned
- 2012-08-15 WO PCT/IB2012/054164 patent/WO2014027221A1/en active Application Filing
- 2012-08-15 EP EP12772446.6A patent/EP2884872B1/en active Active
- 2012-08-15 CA CA2881878A patent/CA2881878C/en not_active Expired - Fee Related
-
2015
- 2015-02-13 AU AU2015200734A patent/AU2015200734A1/en not_active Abandoned
- 2015-02-13 US US14/622,070 patent/US9700147B2/en active Active
- 2015-09-10 HK HK15108801.5A patent/HK1208136A1/en unknown
-
2016
- 2016-11-23 AU AU2016262706A patent/AU2016262706B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9700160B2 (en) * | 2012-07-09 | 2017-07-11 | Loan Kim Thi Pham | Orthopedic pillow for treatment and prevention of lumbar and thoracic spine diseases |
WO2017152148A1 (en) * | 2016-03-04 | 2017-09-08 | Sorg Mary M | Sacroiliac treatment apparatus and method |
Also Published As
Publication number | Publication date |
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AU2016262706B2 (en) | 2019-11-14 |
KR20170128374A (en) | 2017-11-22 |
EP2884872B1 (en) | 2020-03-18 |
AU2016262706A1 (en) | 2016-12-15 |
US20150223611A1 (en) | 2015-08-13 |
US9700147B2 (en) | 2017-07-11 |
JP2015526173A (en) | 2015-09-10 |
CA2881878A1 (en) | 2014-02-20 |
KR101931519B1 (en) | 2018-12-21 |
JP6486823B2 (en) | 2019-03-20 |
AU2015200734A1 (en) | 2015-03-05 |
SG11201501073YA (en) | 2015-05-28 |
KR20150047490A (en) | 2015-05-04 |
EP2884872A1 (en) | 2015-06-24 |
WO2014027221A1 (en) | 2014-02-20 |
CA2881878C (en) | 2018-04-24 |
HK1208136A1 (en) | 2016-02-26 |
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