US4483329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device and method for the reduction of lumbar lordosis
Assignee: Individual
•
Filing: 1983-08-17
•
Granted: 1984-11-20
•
Expires: 2003-08-17
Abstract
Abstract A device for reducing lumbar lordosis. The device is shaped to fit the sacral area of a supine patient to provide support for the apex of the sacrum of such a supine patient. The body weight of such a supine patient will then have the effect of biasing the sacrum to reduce lumbar lordosis and thereby alleviate low backache.
Inventors
- 👤 Desmond E. Shamos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
72 words
A method of reducing lumbar lordosis in a patient, the method comprising causing a patient to lie supine on a surface, and positioning a support device in the sacral area of the patient to support the apex of the patient's sacrum without providing support for the base of the patient's sacrum for the patient's body weight to displace the sacral base posteriorly and to displace the apex anteriorly to reduce lumbar lordosis.
Claim 2
Independent Claim
72 words
A method of reducing lumbar lordosis in a patient, the method comprising causing a patient to lie supine on a surface, and positioning a support device in the sacral area of the patient to support the apex of the patient's sacrum without providing support for the base of the patient's sacrum for the patient's body weight to displace the sacral base posteriorly and to displace the apex anteriorly to reduce lumbar lordosis.
Claim 3
Independent Claim
115 words
A device for reducing lumbar lordosis, the device comprising a wedge member having a base surface to support the device on a supporting surface, and having an upper surface to be directed upwardly during use, the upper surface being curved to generally match the curvature of the apex zone of an average sacrum, and the device being shaped to fit the sacral area of a supine patient for the upper surface to engage with and to provide support for the apex zone of the sacrum of such a supine patient without the wedge member providing support for the base of the sacrum for the patient's body weight to bias the sacrum to reduce lumbar lordosis.
Claim 4
Independent Claim
115 words
A device for reducing lumbar lordosis, the device comprising a wedge member having a base surface to support the device on a supporting surface, and having an upper surface to be directed upwardly during use, the upper surface being curved to generally match the curvature of the apex zone of an average sacrum, and the device being shaped to fit the sacral area of a supine patient for the upper surface to engage with and to provide support for the apex zone of the sacrum of such a supine patient without the wedge member providing support for the base of the sacrum for the patient's body weight to bias the sacrum to reduce lumbar lordosis.
Claim 5
Dependent Claim
26 words
A device according to claim 2, in which the upper surface is curved to be complementary to the curvature of the apex of an average sacrum.
Claim 6
Independent Claim
151 words
A device, for reducing lumbar lordosis, the device comprising a wedge member having a base surface to support the device on a supporting surface, and having an upper surface to be directed upwardly during use, the device including a trailing end to be directed towards the head of a patient during use, and an opposed leading end, and having the upper surface diverging away from the base surface from the trailing end to a peak adjacent the leading end of the device, the upper surface being curved to be complementary to the curvature of the apex zone of an average sacrum, and the device being shaped to fit the sacral area of a supine patient for the upper surface to engage with and to provide support for the apex zone of the sacrum of such a supine patient for the patient's body weight to bias the sacrum to reduce lumbar lordosis.
Claim 7
Independent Claim
151 words
A device, for reducing lumbar lordosis, the device comprising a wedge member having a base surface to support the device on a supporting surface, and having an upper surface to be directed upwardly during use, the device including a trailing end to be directed towards the head of a patient during use, and an opposed leading end, and having the upper surface diverging away from the base surface from the trailing end to a peak adjacent the leading end of the device, the upper surface being curved to be complementary to the curvature of the apex zone of an average sacrum, and the device being shaped to fit the sacral area of a supine patient for the upper surface to engage with and to provide support for the apex zone of the sacrum of such a supine patient for the patient's body weight to bias the sacrum to reduce lumbar lordosis.
Claim 8
Dependent Claim
61 words
A device according to claim 4, in which the upper surface diverges relatively to the base surface to provide the upper surface at an inclination corresponding generally with the inclination which an average sacrum apex should have for a proper lumbar profile when a patient is resting supine on a surface on which the base surface of the device is supported.
Claim 9
Dependent Claim
62 words
A device according to claim 5, in which the device has an enlarged base plate defining the base surface on one side thereof and a support surface on the opposed side thereof, and in which the support surface has an elongated recess for receiving the spinous process of a patient while supporting the pelvis of a supine patient on the support surface.
Claim 10
Dependent Claim
22 words
A device according to claim 6, which is adjustable to adjust the inclination of the upper surface relatively to the base surface.
Claim 11
Dependent Claim
29 words
A device according to claim 4, in which the device has two opposed sides which taper inwardly towards each other in the direction of the peak of the device.
Claim 12
Dependent Claim
27 words
A device according to claim 5, in which the upper surface is inclined to reduce the lumbo-sacral angle of a patient using the device, by about 1°.
References Cited (Backward Citations)
US712375A
Cited
US1497837A
Cited
US1833426A
Cited
US2343204A
Cited
US3672360A
Cited
US4230099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |