Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
A lower leg orthosis for supporting the lower leg comprising: a semi-rigid shell provided with an anterior opening, such that said shell is open across that area of the shell where the anterior part of the leg is adapted to be positioned, and having posterior, medial and lateral portions, the medial and lateral portions each being coupled to the posterior portion; a first soft flexible material, more flexible than the semi-rigid shell, being disposed within said shell and adapted to enclose the lateral, medial and posterior parts of the leg; a second soft flexible material, said second material having substantially the same flexibility as the first flexible material, said second material also being more flexible than said semi-rigid shell, said second material being wider than the width of said anterior opening when the orthosis is positioned on a leg so as to be adapted to be disposed partially within said shell and to enclose the anterior part of the leg, the exposed portion of said second flexible material being free of any additional material which substantially decreases its flexibility; and means for urging the lateral and medial shell parts toward each other to secure said shell and flexible materials around the leg.
Claim 2
Dependent Claim
202 words
A lower leg orthosis for supporting the lower leg comprising: a semi-rigid shell provided with an anterior opening, such that said shell is open across that area of the shell where the anterior part of the leg is adapted to be positioned, and having posterior, medial and lateral portions, the medial and lateral portions each being coupled to the posterior portion; a first soft flexible material, more flexible than the semi-rigid shell, being disposed within said shell and adapted to enclose the lateral, medial and posterior parts of the leg; a second soft flexible material, said second material having substantially the same flexibility as the first flexible material, said second material also being more flexible than said semi-rigid shell, said second material being wider than the width of said anterior opening when the orthosis is positioned on a leg so as to be adapted to be disposed partially within said shell and to enclose the anterior part of the leg, the exposed portion of said second flexible material being free of any additional material which substantially decreases its flexibility; and means for urging the lateral and medial shell parts toward each other to secure said shell and flexible materials around the leg.
Claim 3
Dependent Claim
17 words
The orthosis as defined in claim 1 wherein said first and second materials are soft and porous.
Claim 4
Dependent Claim
31 words
The orthosis as defined in claim 2 wherein said first flexible material comprises a heat moldable perforated foam pad and said second flexible material comprises a heat moldable perforated foam pad.
Claim 5
Dependent Claim
45 words
The orthosis as defined in claim 3 further comprising: a footplate; lateral and medial uprights pivotally attached to said footplate; and means for securing said lateral upright to said lateral portion of said shell, and said medial upright to said medial portion of said shell.
Claim 6
Dependent Claim
28 words
The orthosis as defined in claim 4 wherein said urging means includes a plurality of straps attached vertically along said shell and extending across said second flexible material.
Claim 7
Dependent Claim
16 words
The orthosis as defined in claim 5 wherein said securing means includes hook and pile fasteners.
Claim 8
Dependent Claim
58 words
The orthosis as defined in claim 1 wherein: said lateral and medial portions are coupled to said posterior portion by a plurality of rivets; and said urging means includes a plurality of straps fastened along one side of said shell, said straps extending across the anterior of the limb to attach to the other side of said shell.
Claim 9
Dependent Claim
25 words
The orthosis as defined in claim 1 wherein edge portions of said second flexible material are adapted to be placed inside said first flexible material.