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The DEKA Arm: its features, functionality, and evolution during the Veterans Affairs Study to optimize the DEKA Arm.

Linda Resnik1, Shana L Klinger2, Katherine Etter3

  • 1Research, Providence VA Medical Center, Providence, RI, USA Health Services, Policy and Practice, Brown University, Providence, RI, USA Linda.Resnik@va.gov.

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Summary
This summary is machine-generated.

The DEKA Arm, an advanced upper limb prosthesis, offers improved functionality over current technology. Prototypes Gen 2 and Gen 3 were developed and optimized for enhanced user control and capabilities.

Keywords:
Amputationassistive technologyprostheticsupper limb

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Area of Science:

  • Biomedical Engineering
  • Prosthetics and Orthotics
  • Human-Computer Interaction

Background:

  • The Defense Advanced Research Project Agency (DARPA) commissioned DEKA Integrated Solutions Corp. to develop a next-generation prosthetic arm.
  • Existing prosthetic technology has limitations that the DEKA Arm aims to overcome.

Purpose of the Study:

  • To describe the features and functionality of the Gen 2 and Gen 3 DEKA Arm prototypes.
  • To detail the optimization efforts undertaken for the DEKA Arm system.

Main Methods:

  • Detailed reporting on prototype features: weight, cosmesis, grip patterns, powered movements, and control systems.
  • Evaluation of prosthetist interface, power sources, user notifications, and troubleshooting capabilities.
  • Documentation of specialized socket features and design modifications during optimization.

Main Results:

  • The DEKA Arm is available in radial, humeral, and shoulder configurations, each with multiple grip patterns and wrist movements.
  • The Gen 3 prototype introduced a compound wrist, internal batteries, and an embedded wrist display for enhanced functionality.
  • Endpoint Control allows simultaneous multi-joint movements in the shoulder configuration.

Conclusions:

  • The DEKA Arm represents a significant advancement in upper limb prosthetics, surpassing current commercial offerings.
  • While not yet commercially available, the described prototypes (Gen 2 and Gen 3) highlight its advanced capabilities.