🦾 Coordinate: Open-Source Prosthetic Design Refinement for Community Fitting Initiative

[zhub9006]

Coordination: Design Refinement Discussions for Open-Source Prosthetic Community Initiative

Hi everyone! 👋

We're organizing a community prosthetic fitting initiative and would love to coordinate with open-source prosthetic design contributors to refine designs for accessibility, affordability, and ease of fabrication.

Current Landscape (from ClinicalTrials.gov)

• 2,182 active prosthetic clinical trials are currently tracked
• Sponsor distribution:
  • Academic/Other sponsors: 1,676 (77%) — the dominant force
  • Industry sponsors: 382 (17%)
  • Federal/Government: 108
  • NIH: 2
• Phase distribution:
  • Phase 4: 91 (post-market surveillance)
  • Phase 3: 69 (efficacy trials)
  • Phase 2: 78 (preliminary efficacy)
  • Phase 1: 35 (safety/tolerability)
  • Early Phase 1: 10
  • Unknown/Not Applicable: 1,926
• Key takeaway: Most active work is in early-phase and device development, with academic institutions driving the majority of innovation — a strong alignment with open-source community efforts.

Open-Source Repository Landscape

We've identified several promising open-source prosthetic design projects on GitHub:

1. BlueBionics (MichiganNeuroProsthetics) — Silverhand 1-motor & 2-motor 3D-printed arms for kids (3 stars, 6 forks)
2. Open-Source-Low-Cost-Myoelectric-Prosthetic-Arm (r-echeverri) — FDM 3D-printed myoelectric transradial arm ($263 cost, 7-month iterative design)
3. Modular3DPrintedUpperLimbProsthesis (Xarcu) — Modular system with mechanical, EMG, and haptic feedback options
4. aurius-prosthetics/aurius-prosthetics — Open-source 3D-printed prosthetic ears
5. FunnyKiwi/Mind-Controlled-Prosthetic-Arm — Mind-controlled arm with schematics & 3D designs
6. themikulrai/the-claw — Fully 3D-printed single-part PLA bionic hand
7. turing-lab/GalileoHandMechanical — < $100 DIY 3D-printed prosthetic hand kit
8. Percyus14/Open-source-prosthetic-arm — Raspberry Pi 3B+ based arm
9. AiPEX-Lab/3D-printed-Prosthetic-Design — Research data & code for 3D-printed prosthetic design
10. AcrimoniousMirth/Project-Adam-3D-SCANNER-CODE — Scanner-printer hybrid for prosthetic limb creation

Proposed Discussion Topics

• Design standardization: Common sizing, modular interfaces, and inter-part compatibility
• Material optimization: PLA vs TPU vs PETG trade-offs for durability, comfort, and printability
• EMG integration: Standardized sensor mounting and signal processing pipelines
• Volume fabrication: Workflows for batch production (Cura profiles, multi-part printing)
• Documentation: Creating reproducible build guides for community volunteers
• Testing & validation: Simple protocols volunteers can follow during community fitting events

How to Contribute

1. Review the linked repositories and identify design aspects you can improve
2. Propose specific design refinements via pull requests
3. Join our community fitting event (details to be announced)
4. Help document build processes and test protocols

Meeting Venue (Community Event)

We're planning a gathering at the O'Connell Branch Library in Cambridge, MA:

• Address: 48 Sixth Street, Cambridge, MA 02141
• Wheelchair accessible
• Central to Boston, Cambridge, and Somerville (optimal for our volunteer base)
• Hours: Mon/Fri 10am–6pm; Tue–Thu 10am–8pm
• Contact: Cambridge Public Library (www.cambridgepubliclibrary.org)

We'd love for contributors from all the listed repositories to weigh in. Let's make prosthetic design more accessible together! 💪

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This issue was informed by clinical trial trend analysis from ClinicalTrials.gov showing 2,182 active prosthetic studies predominantly driven by academic sponsors, and GitHub repository searches identifying 10+ active open-source prosthetic design projects.