this article and any supplementary material should be cited as follows: smit g, plettenburg dh, van...

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different finger concepts for body-powered prosthetic hand. J Rehabil Res Dev. 2013;50(9):XX–XX. http://dx.doi.org/10.1682/JRRD.2012.12.0223

Slideshow ProjectDOI:10.1682/JRRD.2012.12.0223JSP

Design and evaluation of two different finger concepts for body-powered

prosthetic handGerwin Smit, MSc, PhD; Dick H. Plettenburg, MSc, PhD;

Frans C. T. van der Helm, MSc, PhD

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different finger concepts for body-powered prosthetic hand. J Rehabil Res Dev. 2013;50(9):XX–XX. http://dx.doi.org/10.1682/JRRD.2012.12.0223

Slideshow ProjectDOI:10.1682/JRRD.2012.12.0223JSP

• Aim– Find efficient energy transmission method for

body-powered prosthetic hand.

• Relevance–Mechanisms in prosthetic hands should have low mass and be able to

deliver pinch force with only small amount of input energy.

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different finger concepts for body-powered prosthetic hand. J Rehabil Res Dev. 2013;50(9):XX–XX. http://dx.doi.org/10.1682/JRRD.2012.12.0223

Slideshow ProjectDOI:10.1682/JRRD.2012.12.0223JSP

Method• Designed and tested pulley-cable finger and hydraulic cylinder finger.

– Compared pulley-cable transmission principle with hydraulic cylinder transmission principle.

• Both fingers had identical dimensions and low mass.

– Measured input energy for several tasks.

(a) (b)

Figure. (a) Pulley-cable finger.(b) Hydraulic cylinder finger.

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different finger concepts for body-powered prosthetic hand. J Rehabil Res Dev. 2013;50(9):XX–XX. http://dx.doi.org/10.1682/JRRD.2012.12.0223

Slideshow ProjectDOI:10.1682/JRRD.2012.12.0223JSP

Results

• Pulley-cable finger required more input energy than hydraulic cylinder finger to perform tasks, especially tasks requiring higher pinch forces.

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different finger concepts for body-powered prosthetic hand. J Rehabil Res Dev. 2013;50(9):XX–XX. http://dx.doi.org/10.1682/JRRD.2012.12.0223

Slideshow ProjectDOI:10.1682/JRRD.2012.12.0223JSP

Conclusion

• Hydraulic cylinder transmission is more efficient transmission for application in body-powered prosthetic fingers.