US3661151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical shoe
Assignee: PSL IND Inc
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Filing: 1970-02-06
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Granted: 1972-05-09
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Expires: 1990-02-06
Abstract
Abstract A shoe converted to aid post-operative rehabilitation of the foot and to serve as a splint or cast for foot fractures is provided with rigid plywood midsole to restrict undesirable foot movement during ambulation. The shoe upper is modified by eliminating the conventional toe box and tongue so that the shoe can be readily adjusted to compensate for swelling of the foot constriction loosening lacing placed through eyelets in the upper. Elimination of the toe box and tongue a also decreases post-operative constriction of the foot within the shoe contributing to undesirable swelling. In all other respects the shoe remains unmodified, to allow both feet to be the same height for the walking surface when a normal shoe is worn on the other foot, for cosmetic purposes, and to permit ambulation with maximum comfort and convenience.
Inventors
- 👤 Errol A Schoenbrun
- 👤 Murray M Lichtenstein
- 👤 Bernard Podos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:48
CPC Classifications
A; A43; A43B; A43B7/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
169 words
A surgical shoe construction designed to receive a cast-less foot to promote post-operative rehabilitation of the foot comprising: a composite sole, said composite including rigid midsole means for immobilizing the foot of the wearer by restricting undesirable foot movement during ambulation, cushion means on the upper surface of said midsole means, and ground engaging sole means secured to the lower surface of said midsole means; heel means comprising an insert positioned between the midsole means and the ground engaging sole means for elevating said midsole means; a flexible shoe upper secured to said composite sole adapted to substantially envelop the foot of the wearer to minimize swelling of the foot; said upper having an open toe portion and a midportion having spaced edges; and said midportion including a pair of spaced tongues overlaying the flexible upper of the shoe for securing said shoe to said foot, said tongues carrying means for bringing the midportion edges together with the selective tension to compensate for various swelling conditions of the foot.
Claim 2
Dependent Claim
169 words
A surgical shoe construction designed to receive a cast-less foot to promote post-operative rehabilitation of the foot comprising: a composite sole, said composite including rigid midsole means for immobilizing the foot of the wearer by restricting undesirable foot movement during ambulation, cushion means on the upper surface of said midsole means, and ground engaging sole means secured to the lower surface of said midsole means; heel means comprising an insert positioned between the midsole means and the ground engaging sole means for elevating said midsole means; a flexible shoe upper secured to said composite sole adapted to substantially envelop the foot of the wearer to minimize swelling of the foot; said upper having an open toe portion and a midportion having spaced edges; and said midportion including a pair of spaced tongues overlaying the flexible upper of the shoe for securing said shoe to said foot, said tongues carrying means for bringing the midportion edges together with the selective tension to compensate for various swelling conditions of the foot.
Claim 3
Dependent Claim
16 words
A surgical shoe in accordance with claim 1 wherein said spaced tongues include lace receiving eyelets.
Claim 4
Dependent Claim
24 words
A surgical shoe in accordance with claim 1 wherein said insert provision between the midsole means and ground engaging sole portion comprises a wedge.
Claim 5
Dependent Claim
21 words
A surgical shoe in accordance with claim 1 wherein said shoe upper is secured to the lower surface of said midsole.
Claim 6
Dependent Claim
18 words
A surgical shoe in accordance with claim 1 wherein ground engaging sole portion is a rippled rubber sole.
Claim 7
Dependent Claim
18 words
A surgical shoe in accordance with claim 1 wherein said cushion on said midsole is formed from foam.
Claim 8
Dependent Claim
16 words
A surgical shoe in accordance with claim 1 wherein said rigid midsole is formed from plywood.
References Cited (Backward Citations)
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US2545910A
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US2724912A
Cited
US2736971A
Cited
US3044463A
Cited
US3198192A
Cited
US3566487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |