US5656023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable knee support
Assignee: 3M Innovative Properties Co
•
Filing: 1995-03-21
•
Granted: 1997-08-12
•
Expires: 2015-03-21
Abstract
Abstract An adjustable knee support is formed from a single piece of a resilient, flexible laminate, preferably a layer of neoprene bonded to a nylon outer casing and a nylon inner lining. A central portion of the support overlies the patella. Upper and lower fasteners are integral with the central portion above and below the knee. Each fastener includes at least one strap that extends laterally and a strap extension that wraps around the leg. The upper and lower fasteners extend in opposite directions. The central portion has a separate pair of fastening straps which extend transversely from both sides and meet behind the knee cap. Tabs carrying an array of hook-type fastenings are secured to the free end of each strap and strap extension. The upper and lower straps and their extensions are separated from the central fastener by a cutout portion of sufficient vertical height to allow the support to flex without the buckling or rubbing the back of the leg. By pulling each of the straps separately and then securing the tab on the outer casing it is possible to adjust the degree of compression at each of the three vertical locations independently. The strap extensions have highly elastic portions to accommodate normal expansions and contractions of the leg. The central portion includes pockets with flexible metallic stays located in opposite sides of the patella to provide enhanced mechanical support.
Inventors
- 👤 Louis Caprio, Jr.
- 👤 Stephen Madow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:33
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/0102; A61F5/0104; A61F5/0106
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
294 words
An adjustable knee support that is secured to a leg to support the patella and surrounding tissue and which allows a normal range of motion of the knee, comprising a sheet of elastic material having a central support portion that at least surrounds and supports the patella and has upper and lower edges and two side edges adapted to extend along the leg on opposite sides of the patella, an upper fastener extending from said central support portion generally along the upper edge of said central support portion, a lower fastener extending from said central support portion generally along the lower edge of said central support portion, central elastic fastener means secured to the central support portion at at least one of said edges and adapted to be aligned laterally with the patella, said central support portion being stretchable to support the patella directly when said central elastic fastener means is stretched, and means for releasably securing said upper and lower fasteners and said central elastic fastener means when they are stretched in a direction generally perpendicular to the leg to develop a compressive force in said upper and lower fasteners that secures the support on the leg and in said central fastener means to produce said direct support of the patella, said upper and lower fasteners, and said central elastic fastener means being formed with cut-outs to separate and define said central fastener portion from each of said upper and lower fasteners, said cut-outs extending laterally from said two side edges such that said upper and lower fasteners are each spaced vertically from said central fastener means by gaps located generally opposite the patella when said upper and lower fastener are wrapped around the leg and when said releasable securing means are secured.
Claim 2
Dependent Claim
294 words
An adjustable knee support that is secured to a leg to support the patella and surrounding tissue and which allows a normal range of motion of the knee, comprising a sheet of elastic material having a central support portion that at least surrounds and supports the patella and has upper and lower edges and two side edges adapted to extend along the leg on opposite sides of the patella, an upper fastener extending from said central support portion generally along the upper edge of said central support portion, a lower fastener extending from said central support portion generally along the lower edge of said central support portion, central elastic fastener means secured to the central support portion at at least one of said edges and adapted to be aligned laterally with the patella, said central support portion being stretchable to support the patella directly when said central elastic fastener means is stretched, and means for releasably securing said upper and lower fasteners and said central elastic fastener means when they are stretched in a direction generally perpendicular to the leg to develop a compressive force in said upper and lower fasteners that secures the support on the leg and in said central fastener means to produce said direct support of the patella, said upper and lower fasteners, and said central elastic fastener means being formed with cut-outs to separate and define said central fastener portion from each of said upper and lower fasteners, said cut-outs extending laterally from said two side edges such that said upper and lower fasteners are each spaced vertically from said central fastener means by gaps located generally opposite the patella when said upper and lower fastener are wrapped around the leg and when said releasable securing means are secured.
Claim 3
Dependent Claim
15 words
The adjustable knee support of claim 1 wherein said cut-outs have a generally V-shaped configuration.
Claim 4
Dependent Claim
105 words
The adjustable knee support of claim 1 wherein said securing means includes a tab of material carrying an array of hook fasteners on at least one surface thereof and a second piece material that has a plurality of mating loop fasteners that when pressed together replaceably secure said upper and lower fasteners around the leg and replaceably secure the central support portion over the knee, all with an adjustable degree of compression depending on the relatively lateral location of said tab on second piece of material and therefore the degree to which said upper and lower fasteners and said central elastic fastener means are stretched.
Claim 5
Dependent Claim
28 words
The adjustable knee support of claim 1, wherein said upper and lower fasteners are each adapted to extend laterally for a sufficient distance to wrap around the leg.
Claim 6
Dependent Claim
47 words
The adjustable knee support of claim 1 wherein said sheet of elastic material comprises a laminate of central layer of an elastic material, an outer casing of a woven textile material that mates with a hook fastener material, and an inner lining formed of a textile material.
Claim 7
Dependent Claim
28 words
The adjustable knee support of claim 5 wherein said central layer of sheet material is neoprene and said outer casing and said inner lining are formed of nylon.
Claim 8
Dependent Claim
25 words
The adjustable knee support of claim 5 wherein said upper and lower fasteners are each adapted to extend vertically on the leg about 4 inches.
Claim 9
Dependent Claim
36 words
The adjustable knee support of claim 7 wherein said central fastener means has a vertical height of about 2 inches and said gaps above and below said central fastener means each extending vertically about 1 inch.
Claim 10
Dependent Claim
21 words
The adjustable knee support of claim 1 wherein said central portion contains an internal opening adapted to generally circle the patella.
Claim 11
Dependent Claim
22 words
The adjustable knee support of claim 1 wherein said upper and lower fasteners extend from said central support portion in opposite directions.
Claim 12
Dependent Claim
27 words
The adjustable knee support of claim 1 wherein said upper and lower fasteners each comprise strap portion that extend from opposite sides of said central support portion.
References Cited (Backward Citations)
DK101132A
Cited
US2858540A
Cited
US3046981A
Cited
US3092110A
Cited
US3189919A
Cited
US3406406A
Cited
US3613681A
Cited
US3677265A
Cited
US3804084A
Cited
US3945046A
Cited
US3934583A
Cited
US3945047A
Cited
US4013070A
Cited
US4084584A
Cited
US4378009A
Cited
US4296744A
Cited
US4407276A
Cited
US4353362A
Cited
US4423720A
Cited
DE3511250A1
Cited
US4651722A
Cited
US4765318A
Cited
US4724831A
Cited
FR2622437A1
Cited
US5024216A
Cited
US5086761A
Cited
US5139477A
Cited
US5139476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-11 | 2001-02-10 | 2001-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-11 | 2005-02-10 | 2005-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-11 | 2009-02-10 | 2009-08-12 | $7700.00 | Window Closed / Lapsed |