Lockable hinge
View Patent ↗A lockable hinge for use in orthopedic braces is provided. When used in a knee brace, the present hinge provides a knee-immobilizing brace that assists persons with standing and/or walking. The hinge is easily converted from a locked mode to a free range of motion mode and vice versa. When the hinge is in the locked mode, patients are better able to stand and walk. With the push of a button, the patient can bend his or her knee to sit or lie down more comfortably. When the hinge is in the free range of motion mode, patients are better able to participate in physical therapy activities without the hinge locking.
1. A lockable hinge for use in an orthopedic brace, the hinge comprising:
a hinge plate;
an arm rotatably mounted to the hinge plate, the arm being rotatable about a hinge axis; and
a flexion stop; wherein
the flexion stop is movable in a direction substantially parallel to the hinge axis between a first position in which the flexion stop limits a range of flexion of the arm, and a second position in which the flexion stop does not limit a range of flexion of the arm.
2. The lockable hinge of claim 1 , further comprising a second arm rotatably mounted to the hinge plate, the second arm being rotatable about a second hinge axis.
3. The lockable hinge of claim 1 , wherein when the arm occupies a first flexion range, the arm maintains the flexion stop in the second position.
4. The lockable hinge of claim 3 , wherein when the arm occupies a second flexion range, the arm does not maintain the flexion stop in the second position.
5. The lockable hinge of claim 4 , wherein when the arm occupies the second flexion range, a flexion abutment face on the arm cooperates with a flexion abutment face on the flexion stop to limit a range of flexion of the hinge.
6. The lockable hinge of claim 4 , further comprising a toggle that is selectively engageable with the flexion stop.
7. The lockable hinge of claim 6 , wherein when the toggle does not engage the flexion stop, the flexion stop moves toward the first position when the arm occupies the second flexion range.
8. The lockable hinge of claim 7 , wherein when the toggle engages the flexion stop, the flexion stop remains in the second position when the arm occupies the second flexion range.
9. The lockable hinge of claim 1 , further comprising an extension stop.