WILMER Central Operated Hook

Product Code: WHK-8

This WILMER hook is part of a unique prosthetic system for children with a unilateral arm defect. The central pushrod operation system provides voluntary opening terminal devices with an operating power totally independent of the wrist rotation angle. Furthermore the control cable is situated inside the forearm socket; this offers a dramatic reduction of wear of clothing. The exchange of the hook for a hand is very simple as there is no need to detach the control cable.


  • for children with (unilateral) upper limb deficiencies at forearm or upper arm level 


  • Voluntary Opening hook prosthesis to be combined with automatically locking/unlocking wrist
  • aluminum/stainless steel hook prosthesis with elastomere lined fingers
  • provides excellent functionality
  • insensitive to sand, water and dirt
  • high efficiency
  • voluntary opening hook with easy adjustable closing force 

Technical Specifications

  • mass: 96 grams
  • maximum active opening (between tips): 50 mm; passive opening: up to 100 mm
  • overall length, from wrist cover: 100 mm