i-Limb Quantum

The i-Limb Quantum from Össur in Iceland continues the Touch Bionics line as a myoelectric prosthesis with five individually motorised fingers and powered thumb rotation with manual override, six driven axes in all; no degree-of-freedom count is published.

According to the product catalogue of June 2025, users can access up to 36 grips, preset and custom, triggered by Gesture Control, muscle triggers, proximity Grip Chips or the Biosim and My i-Limb apps, while Vari-Grip and Auto-Grasp adjust force and prevent slipping. Full open to close takes 0.8 s with Speed Boost.

Weight depends on size and wrist: 472 g in XS, 542 g in S and 558 g in M/L with the quick-wrist disconnect, and 432 to 658 g with the other wrist options. The static hand load limit is 40 kg in XS and 90 kg in the larger sizes, the finger limit 20 kg or 48 kg with titanium fingers. Power is 7.4 V at up to 5 A from a 2,000 or 1,300 mAh lithium-polymer battery. There are no tactile sensors.

Price on request, through prosthetists only. Comparable prostheses in this catalogue are the bebionic Hand EQD and the Michelangelo Hand.