Prosthesis#Myoelectric

Myoelectris (Gr. mys ( genitive: myos ) for prefix muscle) is the trade name for the generated due to complicated biochemical processes in the muscle electrical voltage in the microvolt range, which according to (partial) amputation of limbs is used with prostheses.

Technical function

The myoelectric, that is with a battery -operated and by the muscular contraction in motion set prosthesis is controlled by the derived with surface electrode electromyogram ( EMG). The detected signals are rectified and converted into control signals for the motors of the prosthesis. The proportionality between muscle strength and grippable Myogram is exploited. The muscle strength increases largely in proportion to the number of activated muscle fibers. The effectiveness of the myoelectric prosthesis, however, influenced by the sequential activation, the number of available control signals and the remaining after amputation skills, different muscle groups and independently from each other to tighten

This is on the skin surface of the human means of sensitive electrodes measurable and, for example, be used for the control of prostheses.

Visibility

The first commercial myoelectric arm was developed in 1964 and distributed by the Hangar Limb Factory in UK.Es by the Central Research Institute of the USSR prosthesis was introduced to Frank Elstner The big show of the natural wonders. Moreover, this technique is already being primarily in malformations of the extremities in children applying.