US5097553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leg support for relief of back pain
Assignee: Individual
•
Filing: 1991-07-16
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Granted: 1992-03-24
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Expires: 2011-07-16
Abstract
Abstract A device for supporting one's thighs, knees, calves, and feet to obtain relief and comfort from low back pain. The device permits the user to be placed in the correct position to strengthen the stomach muscles without risking injury to the back. When a prone user disposes his thighs at a 32 degree angle to the vertical, the lower spine is partially flattened and the lower back muscle tension is reduced. The curved areas of the support under the knees and heels, and in the same horizontal plane, provide a comfortable transition from the thigh supporting surfaces to the calf and foot supporting areas. The horizontal surface is depressed intermediate to its length and creates a final subtle incline to receive the calf muscles. The unit is customized to the user's leg length measurements.
Inventors
- 👤 Kevin O. Boland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:53
CPC Classifications
A; A61; A61H; A61H1/00; A61H1/02; A61H1/0292; A61H2203/00; A61H2203/04; A61H2203/0443; A61H2203/045
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
226 words
A device for the relief of back pain of a user comprising: a support over which the user's legs are adapted to be draped; said support comprising: a ground engaging bottom having first and second longitudinal edges, a front edge and a rear edge; first and second vertical sidewalls located on opposite sides of said bottom and extending upwardly therefrom; an inclined front surface extending upwardly from said front edge at an angle of between 25 degrees and 39 degrees from the vertical, said front surface having a length sufficient to engage the buttocks and rear thighs of the user; a substantially horizontal top surface extending between said first and second vertical sidewalls and said front surface and having a longitudinal length sufficient to support that portion of the user's leg between the knee and the foot; a rear sidewall extending upwardly from said rear edge and having its upper portion merging with said top surface at a first rounded corner opposite said front surface; said inclined front surface and said horizontal top surface meeting at a second rounded corner that engages the inner area of the user's knee; said top surface being formed with a lateral depression running between the vertical sidewalls, said depression being located between said first and second rounded corners and being sized to received and support the calves of a user.
Claim 2
Independent Claim
226 words
A device for the relief of back pain of a user comprising: a support over which the user's legs are adapted to be draped; said support comprising: a ground engaging bottom having first and second longitudinal edges, a front edge and a rear edge; first and second vertical sidewalls located on opposite sides of said bottom and extending upwardly therefrom; an inclined front surface extending upwardly from said front edge at an angle of between 25 degrees and 39 degrees from the vertical, said front surface having a length sufficient to engage the buttocks and rear thighs of the user; a substantially horizontal top surface extending between said first and second vertical sidewalls and said front surface and having a longitudinal length sufficient to support that portion of the user's leg between the knee and the foot; a rear sidewall extending upwardly from said rear edge and having its upper portion merging with said top surface at a first rounded corner opposite said front surface; said inclined front surface and said horizontal top surface meeting at a second rounded corner that engages the inner area of the user's knee; said top surface being formed with a lateral depression running between the vertical sidewalls, said depression being located between said first and second rounded corners and being sized to received and support the calves of a user.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein said support is made of foam rubber.
Claim 4
Dependent Claim
14 words
The device of claim 1 wherein a handle is secured to said rear sidewall.
Claim 5
Dependent Claim
20 words
The device of claim 1 wherein said support includes an outer washable fabric cover over a body of foam rubber.
Claim 6
Dependent Claim
21 words
The device of claim 1 wherein said inclined front surface is at an angle of approximately 32 degrees from the vertical.
Claim 7
Dependent Claim
19 words
The invention of claim 1 wherein said depression is less than 5% of the vertical height of said sidewalls.
References Cited (Backward Citations)
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US4627423A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-24 | 1995-09-23 | 1996-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-24 | 1999-09-23 | 2000-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-24 | 2003-09-23 | 2004-03-24 | $7700.00 | Window Closed / Lapsed |