Patent US3703894A successfully refreshed from Google Patents.
US3703894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid foam polyurethane hand splint
Assignee: United States Department of the Navy
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Filing: 1971-02-16
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Granted: 1972-11-28
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Expires: 1991-02-16
Abstract
Abstract A light foam polyurethane hand burn splint designed as a single unit consisting of a broad, concave arm-piece, a thicker-butnarrower wrist section, and a pistol grip hand portion to support the hand in a position to prevent scar contractures from causing postburn deformities.
Inventors
- 👤 Dwight V Galloway
- 👤 Gordon E King
- 👤 Charles C Asbelle
- 👤 Michael F Arrigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:53
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61F5/05; A61F5/058; A61F5/05841; A61F5/05858; A61F5/05866
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
166 words
A polyurethane hand burn splint to support the hand in a position to prevent scar contractures between the individual fingers of said hand said splint comprising in combination: a. a rigid pistol grip shaped hand positioning means; b. a rigid concave paddle-shaped forearm retaining section; c. a flexible wrist supporting means joining said shaped hand positioning means to said forearm retaining section wherein said wrist supporting means is thicker but narrower than said forearm retaining section and narrower than said hand positioning means; d. said hand positioning means comprises a first, second, third and fourth semicircular individual concaved gutter splints with flared separation ridges and a semicircular thickly flared cylindrical section adjacent to and forming said first gutter splint for separating the thumb and index fingers of said hand; and e. said fourth gutter splint being further constructed substantially at a right angle to the longitudinal axis of the hand splint so that the middle joint of the little finger is positioned at about 20* flexion.
Claim 2
Dependent Claim
166 words
A polyurethane hand burn splint to support the hand in a position to prevent scar contractures between the individual fingers of said hand said splint comprising in combination: a. a rigid pistol grip shaped hand positioning means; b. a rigid concave paddle-shaped forearm retaining section; c. a flexible wrist supporting means joining said shaped hand positioning means to said forearm retaining section wherein said wrist supporting means is thicker but narrower than said forearm retaining section and narrower than said hand positioning means; d. said hand positioning means comprises a first, second, third and fourth semicircular individual concaved gutter splints with flared separation ridges and a semicircular thickly flared cylindrical section adjacent to and forming said first gutter splint for separating the thumb and index fingers of said hand; and e. said fourth gutter splint being further constructed substantially at a right angle to the longitudinal axis of the hand splint so that the middle joint of the little finger is positioned at about 20* flexion.
Claim 3
Dependent Claim
52 words
The hand burn splint recited in claim 1 wherein said first, second and third concave gutters are constructed in such a manner so that when the prehensile hand grasps the splint, the fingers fit into the ridged gutters while said hand assumes the natural position of rest on said hand positioning means.
Claim 4
Dependent Claim
22 words
The device recited in claim 1 further including deformable inserts are molded into said forearm retaining means and said wrist supporting means.
Claim 5
Dependent Claim
37 words
The device recited in claim 3 wherein said deformable inserts extend through said forearm retaining means and into said wrist supporting means and is flexible at said wrist supporting means whereby said wrist supporting means is adjustable.
Claim 6
Dependent Claim
36 words
The device recited in claim 1 wherein said forearm retaining means supports and retains the forearm in a semirigid position and furthEr including a forearm wrapping means for swathing said forearm and said forearm retaining means.
References Cited (Backward Citations)
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Cited
US1177398A
Cited
US1328598A
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US2318864A
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Cited
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US2889827A
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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) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |