Orthopedic device
An orthopedic device for the orthotic or prosthetic provision of a patient. The orthopedic device includes a knee joint which has a proximal upper part and a distal lower part arranged pivotably thereon, an ankle joint, a pivoted foot part which can be fastened distally to the ankle joint, and a shin part arranged between the ankle joint and the knee joint. The upper part of the knee joint or a thigh part fastened thereto that can be attached to the patient's body and is coupled with the foot part by a force transfer device, which causes a plantar flexion of the foot part when a knee is flexed.
1. An orthopedic device, comprising:
a knee joint, comprising:
a proximal upper part configured to be fastened to a patient;
a distal lower part pivotally connected to the proximal upper part about a knee pivot axis;
an ankle joint;
a foot part connected to the ankle joint;
a shin part extending between the ankle joint and the knee joint;
a force transmission mechanism connected to the foot part and to the proximal upper part of the knee joint, the force transmission mechanism being operable to provide a plantar flexion of the foot part when the knee joint is flexed, the force transmission mechanism comprising a mechanical coupling mechanism that transmits at least one of tensile force and compressive force, the force transmission mechanism having a control mechanism operable to stop or reverse transmission of the at least one of tensile force and compressive force upon reaching a predetermined knee flexion angle.
2. The orthopedic device as claimed in claim 1 , wherein the mechanical coupling mechanism comprises a push rod or an articulating rod.
3. The orthopedic device as claimed in claim 1 , wherein the mechanical coupling mechanism is mounted to the upper proximal part at a first bearing point positioned proximal of the knee pivot axis, and is mounted to the distal lower part at a second bearing point distal of an ankle pivot axis of the ankle joint.
4. The orthopedic device as claimed in claim 3 , wherein the first and second bearing points lie on different medial/lateral sides of a connection line extending between the knee axis and the ankle joint axis.
5. The orthopedic device as claimed in claim 3 , wherein at least the first bearing point is adjustable.
6. The orthopedic device as claimed in claim 5 , wherein the control mechanism is coupled to at least one sensor in order to control a force transmission in accordance with sensor values.
7. The orthopedic device as claimed in claim 1 , wherein the mechanical coupling mechanism is designed as an articulated rod or tensioning member.
8. The orthopedic device as claimed in claim 1 , wherein the force transmission mechanism blocks a force transmission in a dorsiflexion direction.
9. The orthopedic device as claimed in claim 1 , wherein a maximum dorsiflexion position of the foot part is designed to be variably adjustable.
10. The orthopedic device as claimed in claim 1 , wherein a restoring device is assigned to the foot part in order to effect a dorsiflexion of the foot part.
11. The orthopedic device as claimed in claim 1 , wherein the ankle joint is designed as an elastic joint and exerts a restoring force in the event of an excursion from a starting position.
12. The orthopedic device as claimed in claim 1 , wherein at least one damper is positioned in the ankle joint, the at least one damper counteracting a dorsiflexion.
13. An orthopedic device, comprising:
a knee joint, comprising:
a proximal upper part configured to be fastened to a patient;
a distal lower part pivotally connected to the proximal upper part about a knee pivot axis;
an ankle joint;
a foot part connected to the ankle joint;
a shin part connected to the ankle joint and to the distal lower part;
a force transmission mechanism connected to and extending between the foot part and the proximal upper part, the force transmission mechanism comprising a mechanical coupling mechanism in the form of a push rod or an articulating rod, the force transmission mechanism having a control mechanism operable to stop or reverse transmission of a force upon reaching a predetermined knee flexion angle.
14. The orthopedic device as claimed in claim 13 , wherein the mechanical coupling mechanism transmits the force, the force including at least one of tensile force and compressive force.
15. The orthopedic device as claimed in claim 13 , wherein the mechanical coupling mechanism is mounted to the proximal upper part at a first bearing point positioned spaced away from the knee pivot axis, and is mounted to the foot part at a second bearing point distal of an ankle pivot axis of the ankle joint.
16. The orthopedic device as claimed in claim 15 , wherein the first and second bearing points lie on different medial/lateral sides of a connection line extending between the knee axis and the ankle joint axis.
17. The orthopedic device as claimed in claim 15 , wherein at least the first bearing point is adjustable relative to the proximal upper part.
18. The orthopedic device as claimed in claim 13 , wherein the force transmission mechanism is operable to provide a plantar flexion of the foot part when the knee joint is flexed.
19. The orthopedic device as claimed in claim 13 , wherein the force transmission mechanism is connected to the proximal upper part of the knee joint at a location spaced proximal of the knee pivot axis.