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Affordable Prosthetic Hand Fabrication Project

Designing a process to create anatomically matched, affordable prosthetic hands for low-income users in underserved communities. This initiative aims to provide accessible and user-matched prostheses using inexpensive materials and community-based fabrication techniques.

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Affordable Prosthetic Hand Fabrication Project

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Presentation Transcript

  1. Manotech Associates Formal Design Review March 2, 2006 Jina Kim Forrest Liau David Lin Teresa Wang

  2. Questions To Be Answered • What are we trying to do? • How are we going to make it happen?

  3. Vision & Mission • Vision: To provide a method for producing a anatomically user-matched prosthetic hand that is accessible to low-income users in poor communities • Mission: To design a prosthesis fabrication process that 1) creates a anatomically matching hand for the user and 2) uses materials that are inexpensive, processable by the user, and locally available when possible

  4. “Accessible to low-income users"? • Accessible  Solution is ultimately an option for our target user, which include ultra-low income individuals located in poor, remote areas

  5. How would we make the solution "accessible"? • Materials are: • Inexpensive • locally available when possible • Process is: • Performed by individuals in the community utilizing everyday tools

  6. ”Anatomically user-matched"? • Proportional to user's body • Mirror image of other hand • NO skin detail

  7. How do we make it "user-matched'? • Four-step process • Initial Mold • Solid hand • Reversible mold • Final underlayer product

  8. How will we make this happen? • Proof-of-concept that process is feasible • Initial Mold • Solid hand • Reversible mold • Final underlayer product • Optimize materials based on basic performance specs and accessibility criteria (∏p vs.∏a) • Optimize process to maximize accessibility with acceptable performance

  9. Schedule

  10. Questions? Manotech Associates manotech@mit.edu http://web.mit.edu/3.042/team2_06/

  11. Backup Slides

  12. Materials • Mold • Clay • Stone powder • Alginate • Sugar/cellulose • Solid hand • Gypsum • Sugar/cellulose • Reversible mold • RTV polyurethane • RTV silicon • Sugar/cellulose • Final Underlayer Product • rubber silicone • Liquid rubber • Liquid polyurethane foam

  13. Risks • All: Cost, consistency, temperature • Initial Mold: Distorted shape, long time to form, difficult take-off, sticking to skin, trace marks, brittleness, flimsiness, lack of detail • Solid hand: difficult extraction, lack of detail, difficult remediation • Reversible mold: Brittleness, flimsiness, inadequate reversibility, distorted shape, non-uniform thickness, lack of detail • Final Underlayer Product: Short lifetime, inadequate cosmetics, lack of detail, excessive weight

  14. Clay Work

  15. Clay Work

  16. Clay Work

  17. Clay Work

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