Body-Driven Digit Prosthesis


Water Resistant
Control Strategy
Control Action
Voluntary opening
Nylon 12, Silicone, Titanium,
Stainless Steel 316
Bespoke to patient

Key Features

The ThumbDriver is a body-driven mechanical thumb, which uses a unique anchor design to restore the grasp capabilities of the hand. Designed with the functionality of the entire hand in mind, the ThumbDriver works in conjunction with the fingers to provide the key oppositional force required when grasping or gripping objects.

Who is this suitable for?
The ThumbDriver is intended for use by those with a thumb absence between the MCP and IP joint. There must be natural motion present in the individual’s CMC and/or MCP joints, along with enough residual digit to engage the distal suspension ring, allowing the device to provide a rigid opposition to any heavy forces generated by the finger.

The ThumbDriver provides a subtle articulation movement using MCP joint flexion, with the backplate washer and unique hinge design allowing the device to track the complex multi-axial CMC motion of the thumb.

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View Technical Manual     View Colour Coatings

Features & Benefits

  • Bespoke silicone backplate with adjustable harness for optimum comfort
  • Thumb position can be adjusted by the prosthetist to suit the patient's preferences
  • Adjustable adduction/abduction washers to optimise freedom of motion
  • Constructed using lightweight materials
  • ‘Cage’ structure protects the hypersensitive site of amputation
  • Silicone rubber tip pads mimic the natural thumb tip
  • Easy to don and doff
  • Silicone shims in three sizes provided to accommodate for volume fluctuation and provide additional extension
  • Interchangeable suspension rings provided to ensure correct fit
  • Available in ten colour coatings

Technical Information

Materials   Nylon 12, Stainless Steel 316, silicone, titanium
Resistant to   Water, alcohol, acetone, isopropanol, dirt and dust
Heat resistance   < 175°C (347°F)
Ring tensile strength   36kg (80lb)
Warranty   1 year (extended warranty options available)

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