Damper system
AssigneeOttobock SE & Co. Kgaa
InventorsThorsten GROHS, Andreas SCHUH, Michael Bremer, Andreas KRUSE
Life of this patent
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Abstract
Damper system for orthopaedic devices, with a proximal fastening device and a distal fastening device which are coupled to each other in such a way as to be displaceable relative to each other, with a first hydraulic or pneumatic damper device, which is arranged between the fastening devices and has a flexion chamber and an extension chamber separated from each other by a movable piston and connected fluidically to each other by at least one overflow line, wherein a second damper device with a parallel action, and with a velocity-independent hysteresis behaviour, is arranged between the fastening devices and is configured as a tube structure damper.
Claims20
A damper system for orthopedic devices, having a proximal fastening device and a distal fastening device which are coupled to each other and displaceable relative to each other, having a first hydraulic or pneumatic damper device, which is arranged between the proximal and distal fastening devices and which has a flexion chamber and an extension chamber which are separated from each other by a movable piston and which are fluidically connected to each other by at least one overflow line, the damper system further including a second damper device with parallel action, and with a speed-independent hysteresis behavior, the second damper device being arranged between the proximal and distal-fastening devices and being designed as a tube structure damper.
A damper system for orthopedic devices, the damper system comprising:
- a proximal fastening device and a distal fastening device, the proximal and distal fastening devices being coupled to each other and displaceable relative to each other;
- a first hydraulic or pneumatic damper device arranged between the proximal and distal fastening devices, the first hydraulic or pneumatic damper device having a flexion chamber and an extension chamber which are separated from each other by a movable piston and which are fluidically connected to each other by at least one overflow line;
- the damper system further including a second damper device configured as a tube structure damper device made from an elastomer which surrounds the first damper device circumferentially, the second damper device having parallel action and with a speed-independent hysteresis behavior, the second damper device being arranged between the proximal and distal fastening devices.
A damper system for orthopedic devices, the damper system comprising:
- a proximal fastening device and a distal fastening device, the proximal and distal fastening devices being coupled to each other and displaceable relative to each other;
- a first hydraulic or pneumatic damper device with adjustable damping behavior, the first hydraulic or pneumatic damper device being arranged between the proximal and distal fastening devices, and the first hydraulic or pneumatic damper device having a flexion chamber and an extension chamber which are separated from each other by a movable piston and which are fluidically connected to each other by at least one overflow line;
- the damper system further including a second damper device configured as a tube structure damper device with at least one outwardly curved, barrel-shaped or bell-shaped portion, the tube structure damper device being made from an elastomer and which surrounds the first damper device circumferentially, the second damper device having parallel action and with a speed-independent hysteresis behavior, the second damper device being arranged between the proximal and distal fastening devices.
Dependencies are inferred from the claim text.