Measurement system for varus/valgus angles in feet
First Claim
1. A system for determining the varus and/or valgus angles of a pronating and/or supinating foot, comprising:
- a base portion having a top surface;
an area defining a substantially hemispherically shaped depression formed in the top surface; and
a platform member having a substantially planar top surface and a substantially hemispherically shaped bottom surface, wherein the bottom surface is selectively operable to be received in and rotatable about the depression such that the top surface of the platform member is selectively operable to achieve and/or maintain a substantially coplanar orientation with respect to the top surface of the base portion.
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Abstract
A measurement system is described for determining the varus and/or valgus angles of a pronating and/or supinating foot, especially when the subtalar joint of the foot is placed and/or maintained in a neutral position. When the user'"'"'s foot is maintained in the subtalar joint neutral position, it causes a substantially hemispherically shaped platform member to rotate relative to a correspondingly shaped depression formed in a base portion such that a top surface of the platform member is no longer in a coplanar relationship with a top surface of the base portion. When this occurs, a bottom surface of the platform member is exposed. As a result, indicia are exposed which correspond to degree markings disposed on the bottom surface of the platform member. The degree markings indicate the angle that corresponds to the amount of pronation and/or supination of the user'"'"'s foot.
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Citations
20 Claims
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1. A system for determining the varus and/or valgus angles of a pronating and/or supinating foot, comprising:
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a base portion having a top surface; an area defining a substantially hemispherically shaped depression formed in the top surface; and a platform member having a substantially planar top surface and a substantially hemispherically shaped bottom surface, wherein the bottom surface is selectively operable to be received in and rotatable about the depression such that the top surface of the platform member is selectively operable to achieve and/or maintain a substantially coplanar orientation with respect to the top surface of the base portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for determining the varus and/or valgus angles of a pronating and/or supinating foot, comprising:
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a base portion having a top surface; an area defining a substantially hemispherically shaped depression formed in the top surface; and a platform member having a substantially planar top surface and a substantially hemispherically shaped bottom surface, wherein the bottom surface is selectively operable to be received in and rotatable about the depression such that the top surface of the platform member is selectively operable to achieve and/or maintain a substantially coplanar orientation with respect to the top surface of the base portion; wherein when a user'"'"'s foot rests on the top surface of the platform member such that the user'"'"'s foot maintains the top surface of the platform member in a coplanar relationship with the top surface of the base portion, the user'"'"'s foot is in an uncorrected supinating and/or pronating position. - View Dependent Claims (17, 18, 19, 20)
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Specification