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Trial Prostheses

| Upper Limb Fabrication |

After the test socket is determined to fit appropriately, it can be helpful to do a trial attachment to the wrist, elbow and/or shoulder. All componentry can then be attached, which allows for:

  • Alignment: Assessment of socket, componentry, and overall length measurements
    • If adjustments need to be made in these areas, this temporary set up allows for corrections to be made prior to definitive fabrication.
  • EMG signals: Strength and separation with additional weight of componentry
    • Verify location and positioning of electrodes
  • Suspension: Verification of range of motion, and controlled socket rotation with the additional weight of all componentry
  • Optimal Positioning: Placement of additional components, such as:
    • Battery charging port / power switch
    • External switches
    • Valves
  • Control Scheme: Verification of componentry access, operation, and proper programming
  • Donning/doffing: Techniques and range of motion.
  • Harness design *Please note, Ottobock does not fabricate custom harnesses.

Material (and color) choices for flexible inner sockets include:

  • ThermoLyn Soft
  • ThermoLyn Supra Soft
  • ThermoLyn Supra Soft Plus Silicone
  • Thermolyn Supra Flexible (available in 16 colors)

 

rough trial
trial set up

 

What is required for an Upper Limb Rough Trial Set Up?

  1. Properly fitting test socket (no modifications will be made!) with electrode positions marked/cut out.

  2. Choice of outer frame (lamination, scotch-cast, etc.)

  3. Material choice for flexible inner socket

  4. Fabrication dummies for prosthetic components

  5. Completed Myo UL iFab Order Form, including the measurement section