UPPER LIMB PROSTHETICS-A3. EXTERNALLY POWERED DEVICES

SUMMARY

1. Controlled by switches or myoelectric signals and are powered with energy provided from external batteries, can be hand-like or non-hand-like.

2. Myoelectric-controlled terminal devices: use surface electrodes placed on the muscles of the residual limb, can have digital-control (on/off) or proportional-control (speed of action is proportional to the stimulus from the muscles).

3. Micro-switch-controlled terminal devices: use either a push-button switch or a pull-switch to activate the terminal device.

Reference(s)

Cifu, D.X. (2020). Braddom’s physical medicine and rehabilitation. Elsevier. Get it on Amazon.
Cuccurullo, S. (2019). Physical medicine and rehabilitation board review. New York: Demosmedical. Get it on Amazon.
O’Young, B., Young, M.A. and Stiens, S.A. (2008). Physical Medicine and Rehabilitation Secrets. Mosby. Get it on Amazon.