Patent US2606500A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4157713A Expired / Lapsed US ⏱️ 0.0 years remaining

Air-pressure splint

Assignee: Individual
•
Filing: 1977-05-11
•
Granted: 1979-06-12
•
Expires: 1997-05-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An air-pressure splint sized to fully encase an injured human leg. The splint comprises inner and outer flexible wall members which are joined to each other by seaming about the perimeter to define an air-tight sealed relationship between the walls forming a double-walled, sealed, inflatable envelope. The envelope has separable air-tight margins adapted to be releasably connected to each other by a zipper-type fastener to hold the pressure splint in a surrounding position around the human leg. The upper end of the envelope has an uneven peripheral contour such that a portion of the envelope end extends upward above the leg for restraining the splint against rotation about the injured leg when the splint is in an inflated mode.

Inventors

  • 👤 Michael T. Clarey

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 04:35
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61F5/05; A61F5/058; A61F5/05816; Y; Y10; Y10S; Y10S128/00; Y10S128/20

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 277 words
An air-pressure splint for fully encasing an injured human leg, said air-pressure splint comprising: an outer flexible and relatively non-stretchable wall; an inner flexible wall connected by seaming about its perimeter in air-tight, sealed relationship to said outer wall to coact with the latter and defining a double-walled and sealed, inflatable envelope, said envelope including an air chamber portion in position to surround the entire leg, an inner flexible wall disposed between said inner wall, said outer wall intermittently connected to the outer wall by air-tight margins forming a plurality of longitudinally disposed laterally spaced air chambers, said air chambers releasably engaging said inner wall to hold said chamber portion in said surrounding position; releasable, self-locking, slide fastener connecting means longitudinally disposed on said respective separate margins extending from the upper adjacent corresponding ends of the latter to the opposite lower margin ends at the foot portion of said air splint for releasably connecting the margins together with the chamber portion of the splint surrounding the injured leg, said slide fastener closing as the slide is moved toward the foot portion, the splint having a length to extend beyond the foot a distance, said slide adapted to come to rest against the upper portion of the foot and adapted to exert a slight force on the top of the foot and preventing rotation of said splint and longitudinal traction of the leg; the upper ends of said envelope having uneven peripheral contours such that a portion of said envelope end extends upwardly above said leg for restraining said splint from rotating about said leg and exerting an upward pressure on the crotch when said envelope is inflated.
Claim 2
Dependent Claim 277 words
An air-pressure splint for fully encasing an injured human leg, said air-pressure splint comprising: an outer flexible and relatively non-stretchable wall; an inner flexible wall connected by seaming about its perimeter in air-tight, sealed relationship to said outer wall to coact with the latter and defining a double-walled and sealed, inflatable envelope, said envelope including an air chamber portion in position to surround the entire leg, an inner flexible wall disposed between said inner wall, said outer wall intermittently connected to the outer wall by air-tight margins forming a plurality of longitudinally disposed laterally spaced air chambers, said air chambers releasably engaging said inner wall to hold said chamber portion in said surrounding position; releasable, self-locking, slide fastener connecting means longitudinally disposed on said respective separate margins extending from the upper adjacent corresponding ends of the latter to the opposite lower margin ends at the foot portion of said air splint for releasably connecting the margins together with the chamber portion of the splint surrounding the injured leg, said slide fastener closing as the slide is moved toward the foot portion, the splint having a length to extend beyond the foot a distance, said slide adapted to come to rest against the upper portion of the foot and adapted to exert a slight force on the top of the foot and preventing rotation of said splint and longitudinal traction of the leg; the upper ends of said envelope having uneven peripheral contours such that a portion of said envelope end extends upwardly above said leg for restraining said splint from rotating about said leg and exerting an upward pressure on the crotch when said envelope is inflated.
Claim 3
Dependent Claim 25 words
The air-pressure splint defined in claim 1 wherein said inner flexible wall is comprised of a plurality of longitudinally disposed and laterally spaced air chambers.

References Cited (Backward Citations)

US2387192A Cited
US2531074A Cited
US2694395A Cited
US3074398A Cited
US3164152A Cited
US3496934A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-06-11 1982-12-11 1983-06-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-06-11 1986-12-11 1987-06-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-06-11 1990-12-11 1991-06-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag