The Utah Arm 3

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• NEW Touch Pad design!
  
  • Allows convenient placement
    wherever a "push" input is available
  • Protects the sensitive transducer from water, sweat and sharp edges
  • Compatible with U3, ProControl and ProHand controllers.
  
  
• Easy to Use Computer Interface- For adjustments by the prosthetist
  The Set-Up Wizard guides you through the process of setting up your system
  step-by-step. Once set up, users can
  readjust by routing directly to the
  adjustment screens.

Since 1981, the Utah Arm has been the premier myoelectric arm for above elbow amputees. It was originally developed at the University of Utah by the Center for Engineering Design, led by Dr. Steve Jacobsen. In 1987, Motion Control released the Utah Arm 2, with entirely re-engineered electronics that made the Utah Arm the most durable and dependable myoelectric arm available.

The Utah Arm 3 - One Step Closer to Nature

In 2004, Motion Control introduced microprocessor technology into the Utah Arm 3 (U3), with a Computer Interface that allows the prosthetist or wearer to fine-tune the adjustments to achieve maximum performance. A variety of inputs may be used, so more options are available to more wearers. Meanwhile, the U3 still delivers the same sensitive, proportional control of elbow, hand and wrist (optional), letting the wearer move the arm and hand slowly or quickly in any position.This provides a more natural response with less effort than the traditional on/off movement.

WHAT’S NEW ABOUT THE U3?

• Simultaneous Elbow and Hand control! Because the Utah Arm 3 has two microprocessors, two functions can be controlled at once (optionally), thus producing a more natural movement.
• More Input Options
  
  • EMG Preamps using disc or snap-type electrodes
  • Motion Control Linear Potentiometer
  • Motion Control Force Sensor
  • Otto Bock Linear Transducer

Maximum Function
The Utah Arm 3’s mobility and fine tuning allow
any patient to achieve maximum function,
including transhumeral, forequarter amputees and
shoulder disarticulation. Many arm wearers master
function quickly, after training with a qualified
Therapist.

New Quiet Lock Option
Optionally the "click" of the lock pin is eliminated
with this new component. Can be retrofitted to
earlier Utah Arm 2 or 3.

The Utah Arm 3 Technical Specifications:

• Excursion Range: 135o
• Excursion Time With Myoelectric Hand TD: 1.20 seconds
• Active Lift: 1 kilogram (2.2 lbs.) in the Terminal Device and using a fully charged Battery
• Load Limit: 22.7 kg (50 lbs.), w/ elbow
  locked at 90o flexion
  15.9 kg (35 lbs.), when forearm extension installed
• Humeral Rotation: Unlimited
• Wrist Rotation: Quick-Disconnect Wrist:
  360o in each direction
• Weight: Without Hand: 913 grams (2 lbs.)
  Hand Weight: 450 gm (1lb.), plus glove
• Heat Tolerances: Operating Temperatures: 0o to 44oC (32o to 110oF)
• Storage Temperatures: -18o to 60o C
  (0o to 140o F)
• Current: Maximum: 4.0 Amps Quiescent:
  10 mA
• Battery Specifications: (5 Battery Packs supplied) Rechargeable NiMH, (1100 mA Hours capacity)
• Voltage: Dual Supply, ± 6 Volts D.C.
  (total 12 V.)
• Charge Time: 2.5 Hours, maximum
• Forearm Length: (from rearmost point of
  the forearm to the end of the wrist)

  • Standard: 27.3 cm (10.75 in.)
  • w/Extension: 32.4 cm (12.75 in.)
  • Minimum: 24.8 cm (9.75 in.)