Orthopedic joint device
The invention relates to an orthopedic joint device having an upper part and a lower part which is hinged about a pivot axis to said upper part, having a flexion moment-controlled retainer device that is positioned between the upper part and the lower part, blocks a flexion and releases the flexion when a predefined flexion moment is exceeded, wherein a control element is associated with the retainer device and is coupled to a delaying element.
1 . An orthopedic joint device having an upper part and a lower part which is fastened to the upper part in an articulated manner about a pivot axis, with a flexion-moment-controlled retaining device which is arranged between the upper part and the lower part and which blocks flexion and releases the flexion when a predetermined flexion moment is exceeded, characterized in that the flexion-moment-controlled retaining device is assigned a control element which is coupled to a delay element which causes a time-delay activation of the control element, wherein the control element comprises a pneumatic or hydraulic actuator which is connected in terms of flow to at least one chamber, and wherein the control element comprises a spring-loaded actuator and the delay element comprises a valve or a throttle.
2 . The orthopedic joint device according to claim 1 , wherein the delay element is configured as a hydraulic delay element.
3 . The orthopedic joint device according to claim 1 , wherein the flexion-moment-controlled retaining device is configured as a pneumatic or hydraulic damper device.
4 . The orthopedic joint device according to claim 3 , wherein the pneumatic or hydraulic damper device has a cylinder in which a movable piston is mounted, the movable piston divides the cylinder into two chambers such that, when the movable piston is shifted accompanied by a reduction in a chamber volume, fluid from a first chamber flows out of the first chamber through a line, wherein inside the line there is a control valve which is assigned the control element in order to set a flow resistance.
5 . The orthopedic joint device according to claim 1 , wherein the control element is configured to be drivable in opposite directions.
6 . The orthopedic joint device according to claim 1 , wherein a return line with a check valve is coupled to the control element.
7 . The orthopedic joint device according to claim 4 , wherein the line is connected to a second chamber and/or to a compensating volume.
8 . The orthopedic joint device according to claim 1 , wherein the valve or the throttle is positioned in a fluid line and comprises a slide.
9 . The orthopedic joint device according to claim 1 , wherein the delay element is configured to be adjustable.
10 . The orthopedic joint device according to claim 1 , wherein the control element is coupled to a force accumulator to counter a reduction in resistance.
11 . The orthopedic joint device according to claim 10 , wherein the force accumulator is configured to be adjustable.
12 . The orthopedic joint device according to claim 1 , wherein the control element is configured to be actuable under pressure control and with a time delay.
13 . The orthopedic joint device according to claim 1 , wherein the orthopedic joint device is configured as an orthotic or prosthetic knee joint or as an orthotic or prosthetic elbow joint or as an orthotic or prosthetic wrist.
14 . An orthopedic joint device having:
an upper part; and
a lower part which is fastened to the upper part in an articulated manner about a pivot axis with a flexion-moment-controlled retaining device which is arranged between the upper part and the lower part, and which blocks flexion and releases the flexion when a predetermined flexion moment is exceeded;
wherein the flexion-moment-controlled retaining device is configured as a pneumatic or hydraulic damper device, and wherein the flexion-moment-controlled retaining device is assigned a control element which is coupled to a delay element, the delay element causes a time-delay activation of the control element, wherein the control element comprises a pneumatic or hydraulic actuator which is connected in terms of flow to at least one chamber, and wherein the control element comprises a spring-loaded actuator and the delay element comprises a valve or a throttle.
15 . The orthopedic joint device according to claim 14 , wherein the pneumatic or hydraulic damper device has a cylinder in which a movable piston is mounted, the movable piston divides the cylinder into two chambers such that, when the movable piston is shifted accompanied by a reduction in a chamber volume, fluid from a first chamber flows out of the first chamber through a line, wherein inside the line there is a control valve which is assigned the control element in order to set a flow resistance.
16 . The orthopedic joint device according to claim 14 , wherein the control element is configured to be drivable in opposite directions.
17 . An orthopedic joint device having:
an upper part; and
a lower part which is fastened to the upper part in an articulated manner about a pivot axis with a flexion-moment-controlled retaining device which is arranged between the upper part and the lower part, and which blocks flexion and releases the flexion when a predetermined flexion moment is exceeded;
wherein the flexion-moment-controlled retaining device is configured as a pneumatic or hydraulic damper device, and wherein the flexion-moment-controlled retaining device is assigned a control element configured as a pneumatic or hydraulic actuator which is connected in terms of flow to at least one chamber, the control element being coupled to a delay element, the delay element causes a time-delay activation of the control element, wherein the control element comprises a pneumatic or hydraulic actuator which is connected in terms of flow to at least one chamber, and wherein the control element comprises a spring-loaded actuator and the delay element comprises a valve or a throttle.
18 . An orthopedic joint device having an upper part and a lower part which is fastened to the upper part in an articulated manner about a pivot axis, with a flexion-moment-controlled retaining device which is arranged between the upper part and the lower part and which blocks flexion and releases the flexion when a predetermined flexion moment is exceeded, characterized in that the flexion-moment-controlled retaining device is assigned a control element which is coupled to a delay element which causes a time-delay activation of the control element, wherein fluid from a first chamber flows out of the first chamber through a pressure line to the control element and the delay element is arranged in the pressure line, wherein fluid from the control element flows out of the control element through a return flow line, and wherein a check valve is positioned in the return flow line that prevents flow from a second chamber from entering the control element, and wherein the control element comprises a spring-loaded actuator and the delay element comprises a valve or a throttle.
19 . The orthopedic joint device according to claim 18 , wherein fluid from the control element flows out of the control element through the return flow line to the second chamber.
20 . An orthopedic joint device having an upper part and a lower part which is fastened to the upper part in an articulated manner about a pivot axis, with a flexion-moment-controlled retaining device which is arranged between the upper part and the lower part and which blocks flexion and releases the flexion when a predetermined flexion moment is exceeded, characterized in that the flexion-moment-controlled retaining device is assigned a control element which is coupled to a delay element which causes a time-delay activation of the control element, wherein the control element comprises a pneumatic or hydraulic actuator which is connected in terms of flow to at least one chamber, wherein the control element comprises a spring-loaded actuator and the delay element comprises a valve or a throttle, wherein fluid from a first chamber flows out of the first chamber through a pressure line to the control element and the delay element is arranged in the pressure line, wherein fluid from the control element flows out of the control element through a return flow line, and wherein a check valve is positioned in the return flow line that prevents flow from a second chamber from entering the control element.
21 . The orthopedic joint device according to claim 20 , wherein fluid from the control element flows out of the control element through the return flow line to the second chamber.