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Exoskeleton customised in seconds with lubrication-free igus plain bearings21/01/2021

drylin linear systems and iglidur plain bearings provide lubrication-free adjustment of an exoskeleton for stroke patients

Many stroke patients worldwide suffer from hemiplegia (partial paralysis). Exoskeletons such as Harmony from Harmonic Bionics can help rebuild the nerve tracts in arms and shoulders. In order to quickly adapt the robot-supported system to different body sizes in physiotherapy, the developers rely on the lightweight, lubrication-free and maintenance-free plain bearing technology from igus.

Every year, 16 million people worldwide suffer a stroke. To enable patients to rehabilitate during physiotherapy, the American company Harmonic Bionics, with the support of the National Science Foundation, has developed an exoskeleton especially for healing muscle damage. The robot named Harmony relieves the shoulder joint and maximises the patient's range of motion. In this way, the system should enable a natural and comprehensive therapy for the arms. For this, Harmony relies on Bilateral Sync Therapy (BST). The robot registers the healthy arm movements and synchronises them to the side affected by the stroke in order to help restore the nerve tracts. In order for the exoskeleton to move with the human body, the robot axis must be correctly adapted to the patient, because incorrect setting can lead to injuries to the joints. For a quick adaptation of Harmony, the developers resorted to linear guides and plain bearings from motion plastics specialist igus.

Lubrication-free and quickly customised
The drylin T and R series rail guides, drylin R linear bearings and iglidur plain bearings enable easy adjustment of the system to the patient's height, arm length and shoulder width. The polymer bearings made of the high-performance material iglidur J are distinguished by their high wear resistance and long service life. As there is no need for external lubricants, the bearings are completely maintenance-free, clean and hygienic and ideally suited for medical technology. All components are made of lightweight materials such as plastic and aluminium. The design is so compact that it can be integrated into the slim design of the robot. "Thanks to the use of the igus polymer bearing technology, the exoskeleton can now be adapted to the patient within seconds", enthuses Rohit John Varghese, Head of Research & Development at Harmonic Bionics.

You can see in the video exactly how Harmony works:
https://youtu.be/PcmNloLIqKk


The termen "Apiro", "AutoChain", "CFRIP", "chainflex", "chainge", "chains for cranes", "ConProtect", "cradle-chain", "CTD", "drygear", "drylin", "dryspin", "dry-tech", "dryway", "easy chain", "e-chain", "e-chain systems", "e-ketten", "e-kettensysteme", "e-loop", "energy chain", "energy chain systems", "enjoyneering", "e-skin", "e-spool", "fixflex", "flizz", "i.Cee", "ibow", "igear", "iglidur", "igubal", "igumid", "igus", "igus improves what moves", "igus:bike", "igusGO", "igutex", "iguverse", "iguversum", "kineKIT", "kopla", "manus", "motion plastics", "motion polymers", "motionary", "plastics for longer life", "print2mold", "Rawbot", "RBTX", "readycable", "readychain", "ReBeL", "ReCyycle", "reguse", "robolink", "Rohbot", "savfe", "speedigus", "superwise", "take the dryway", "tribofilament", "triflex", "twisterchain", "when it moves, igus improves", "xirodur", "xiros" en "yes" zijn wettelijk beschermde handelsmerken van igus® GmbH/Keulen in de Bondsrepubliek Duitsland en, indien van toepassing, in sommige andere landen. Dit is een niet-uitputtende lijst van handelsmerken (bijv. lopende handelsmerkaanvragen of geregistreerde handelsmerken) van igus GmbH of gelieerde ondernemingen van igus in Duitsland, de Europese Unie, de VS en/of andere landen of rechtsgebieden.

igus® GmbH benadrukt dat het geen producten verkoopt van de bedrijven Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsubishi, NUM, Parker, Bosch Rexroth, SEW, Siemens, Stöber en alle andere drive-fabrikanten die worden genoemd op deze website. De producten die worden aangeboden door igus® zijn die van igus® B.V.