US4423735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic orthotic device containing fluid
Assignee: Individual
•
Filing: 1980-12-23
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Granted: 1984-01-03
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Expires: 2000-12-23
Abstract
Abstract An orthotic apparatus to help resuppinate the foot after the initial contact phase of gait. The device consisting of a flexible envelope containing a fluid with a cambered upper surface to flex upwardly upon the generation of a fluid wave along the longitudinal axis of the foot.
Inventors
- 👤 John E. Comparetto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:34
CPC Classifications
A; A43; A43B; A43B17/00; A43B17/02; A43B17/026; A43B13/00; A43B13/14; A43B13/18; A43B13/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
An orthotic device comprising a flexible fluid enclosure having a forefoot portion, an inside upper surface means and an exterior surface means, the inside upper surface means having an opposite upper exterior surface means which is cambered and has multiple defined ridge means to moderate fluid wave motion and direction, and a lower flat wall means forming a fluid enclosure with a heel strike portion means at one end of the enclosure which upon pressure by the foot at the upper exterior surface portion means adjacent the heel strike portion means creating horizontal, longitudinal and upward directed fluid waves to force the cambered upper exterior surface means to supinate the subtalar joint from a position of pronation, the longitudinal waves providing support to the forefoot immediately prior to and during toe-off at the portion of the enclosure distal to the heel strike at the forefoot portion.
Claim 2
Dependent Claim
146 words
An orthotic device comprising a flexible fluid enclosure having a forefoot portion, an inside upper surface means and an exterior surface means, the inside upper surface means having an opposite upper exterior surface means which is cambered and has multiple defined ridge means to moderate fluid wave motion and direction, and a lower flat wall means forming a fluid enclosure with a heel strike portion means at one end of the enclosure which upon pressure by the foot at the upper exterior surface portion means adjacent the heel strike portion means creating horizontal, longitudinal and upward directed fluid waves to force the cambered upper exterior surface means to supinate the subtalar joint from a position of pronation, the longitudinal waves providing support to the forefoot immediately prior to and during toe-off at the portion of the enclosure distal to the heel strike at the forefoot portion.
Claim 3
Dependent Claim
13 words
The device of claim 1 wherein the enclosure is of a polymeric material.
Claim 4
Dependent Claim
10 words
The device of claim 1 wherein the fluid is water.
Claim 5
Dependent Claim
12 words
The device of claim 1, wherein the fluid is of varying densities.
Claim 6
Dependent Claim
18 words
The device of claim 1, wherein the upper exterior surface means comprises ridge means to massage the foot.
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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) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |