Lubrication-free linear technology enables smooth adjustments in rehabilitation equipment

Technical data:

• What was needed: A rehabilitation device that rehabilitates patients with lower limb dysfunction
• Requirements: 100% lubrication-free and maintenance-free, quiet and vibration-free, lightweight, easy installation
• Products used: dryspin® high helix lead screw with matching lead screw nut, xiros® ball bearing, iglidur® J plain bearing bushing, drylin® steel shaft
   
• Success for the customer: A movable orthosis with variable length and numerous adjustable leg cuffs allows the Prodrobot to be adapted in a wide range. The parts installed by igus allowed smooth rehab device adjustment. A long service life and operation suitable for the disabled are guaranteed because igus products require no lubrication or maintenance. Thanks to the simple adjustment, the device is suitable for patients from 115cm to 150cm. The measurements are based on the length of the lower limbs.

Problem

All individual components used in medical devices must meet special requirements. For example, the devices must not make any noise, should be maintenance-free and must have a low component weight. These features are particularly important for the automatic gait trainer from Prodrobot. The rehabilitation device has been specially developed for children with impairments and diseases of the lower limbs. It must therefore be easily and quickly adjustable in size and as light as possible so that rehabilitation is affected as little as possible. 

Solution

igus products create normal conditions with special consideration of medical requirements. They are built into the foot distance adjustment mechanism and thus help with rehabilitation of the lower extremities. The iglidur J bar stock is easy to process. All igus components are easy to install, require no maintenance and are available throughout the entire product life cycle. When repositioning the patient's foot, no noise is produced by the individual parts from igus.

dryspin® high helix lead screws

dryspin® high helix lead screw nuts

xiros® ball bearings

iglidur® plain bearing bushing

drylin® stainless steel shaft

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