Journal of Rehabilitation Research & Development (JRRD)

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Efficiency of voluntary opening hand and hook prosthetic devices: 24 years of development?

Gerwin Smit, MSc, et al.


Figure 3. Schematic overview of test setup during first two tests. Cable activation force and displacement are measured. Fact = force activation cable, LVDT = linear variable differential transformer, mVact = voltage force sensor (unamplified), USB = universal serial bus, Vact = voltage force sensor (amplified), VLVDT = voltage displacement sensor, Xact = displacement activation cable.

We mechanically tested nine voluntary opening (VO) upper-limb prostheses, four hooks and five hands. The first goal was to objectively compare the different devices. The second goal was to see whether VO devices had improved during the past two decades. We measured multiple parameters, e.g., pinch forces, cable pull forces, and cable displacements. The outcomes will help the clinician and the patient select the optimal prosthesis. The results showed that the tested hooks performed much better than the hands. The performance of the tested hands was insufficient. No improvements were shown compared with the devices tested in 1987.

Volume 49 Number 4, 2012
   Pages 523 — 534


View HTML  ¦  View PDF  ¦  Contents Vol. 49, No. 4
This article and any supplementary material should be cited as follows:
Smit G–, Bongers RM, Van der Sluis CK, Plettenburg DH. Efficiency of voluntary opening hand and hook prosthetic devices: 24 years of development? J Rehabil Res Dev. 2012;49(4):523–34.
http://dx.doi.org/10.1682/JRRD.2011.07.0125
ResearcherID: Gerwin Smit, MSc: B-9994-2012; Raoul M. Bongers, MSc, PhD: C-1094-2012; Corry K. Van der Sluis, MD, PhD: C-1102-2012; Dick H. Plettenberg, MSc, PhD: C-1078-2012
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Last Reviewed or Updated  Wednesday, May 30, 2012 10:07 AM

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