Theoretical joint load analysis of a novel prosthetic digit design

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)


Hand loss can cause a significant reduction in functionality and psychological trouble, which can be partially recovered by hand pros theses. For 3D printed prosthetic digits, internal joint loads are critical due to the low strength of 3D printed components. This paper introduces a novel five-link epicyclic (FLE) digit for 3D printed hand prostheses. The motion and joint loads of the FLE digit are analysed and compared to the commonly-adopted coupled-four-bar (CFB) digits. The results show that the FLE digit yields reduced internal joint loads and required stiffness by up to 80%, and mimics the proportions and anthropomorphic motion of a human digit. Hence, the FLE digit may be more suitable for 3D printed hand prostheses.

Original languageEnglish
Title of host publicationAdvances in Mechanism and Machine Science
Subtitle of host publicationProceedings of the 15th IFToMM World Congress on Mechanism and Machine Science
EditorsTadeusz Uhl
Place of PublicationCham Switzerland
Number of pages10
ISBN (Electronic)9783030201319
ISBN (Print)9783030201302
Publication statusPublished - 2019
EventInternational Federation for the Promotion of Mechanism and Machine Science World Congress 2019 - Krakow, Poland
Duration: 30 Jun 20194 Jul 2019
Conference number: 15th

Publication series

NameMechanisms and Machine Science
ISSN (Print)2211-0984
ISSN (Electronic)2211-0992


ConferenceInternational Federation for the Promotion of Mechanism and Machine Science World Congress 2019
Abbreviated titleIFToMM 2019
Internet address


  • constraint analysis
  • prosthetic hand

Cite this