Supination-pronation orthosis for a joint
First Claim
1. A supination-pronation orthosis for treating a joint in an elongate limb of a patient, said limb having a longitudinal axis, comprising,a lower cuff adapted to be secured to the limb of the patient below the joint to be treated and in spaced relationship thereto;
- an upper cuff adapted to be secured to the limb of the patient above the joint to be treated to extend from adjacent to the joint outwardly along the limb;
and torsion means connected between said lower cuff and said upper cuff to provide a bias to selectively oppose rotation of the limb of the patient in one direction from the joint to the lower cuff about said longitudinal axis, said torsion means including an elongate torsion spring having first and second ends with a longitudinal spring axis extending between said first and second ends and a bias adjustment mechanism connected to said torsion spring for rotating said spring about said longitudinal spring axis.
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Abstract
A supination-pronation orthosis for the elbow joint of a patient which includes a hand and wrist cuff secured to the hand and wrist of the patient and an upper arm cuff secured to the upper arm of a patient to extend from adjacent to the elbow joint outwardly along the upper arm. A flexible torsion unit is mounted to extend between the upper arm cuff and the hand and wrist cuff along the forearm of the patient. This torsion unit provides a bias to selectively oppose rotation of the forearm of the patient about the elbow joint.
78 Citations
26 Claims
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1. A supination-pronation orthosis for treating a joint in an elongate limb of a patient, said limb having a longitudinal axis, comprising,
a lower cuff adapted to be secured to the limb of the patient below the joint to be treated and in spaced relationship thereto; -
an upper cuff adapted to be secured to the limb of the patient above the joint to be treated to extend from adjacent to the joint outwardly along the limb; and torsion means connected between said lower cuff and said upper cuff to provide a bias to selectively oppose rotation of the limb of the patient in one direction from the joint to the lower cuff about said longitudinal axis, said torsion means including an elongate torsion spring having first and second ends with a longitudinal spring axis extending between said first and second ends and a bias adjustment mechanism connected to said torsion spring for rotating said spring about said longitudinal spring axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A supination-pronation orthosis for treating a joint of a patient comprising,
a lower cuff adapted to be secured to a limb of the patient below the joint to be treated; -
an upper cuff adapted to be secured to said limb of the patient above the joint to be treated to extend from adjacent to the joint outwardly along the limb; and flexible torsion means connected between said lower cuff and said upper cuff to provide a bias to selectively oppose rotation of the limb of the patient about the joint and including a torsion spring connected to extend along the limb of a patient between said lower cuff and upper cuff, said flexible torsion means including a ratchet mechanism connected to a first end of said torsion spring, said ratchet mechanism operating to permit rotation of said first end of said torsion spring in a selected one of two selectable opposite directions while preventing rotation in the opposite nonselected direction. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification