TRM 250-253

How does TRM (Targeted Muscle Innervation) Work?

With TRM a prosthetic limb is controlled solely by a User’s thought process! The user imagines moving the prosthetic limb and it responds accordingly. To enable this to happen surgery is performed to redirect the nerves that used to control the limb to a new muscle group. Amazingly by connecting existing functioning nerves that controlled a persons limb to a new group of muscles so these muscles can read signals. 

In order for the prosthesis to work, the user has to imagine moving their missing limb. Nerves send these thought signals from the brain to the new target muscle & the result is the muscle contracts. Electrodes that are carefully placed against the skin recognise the signals & with the use of a small computer, it translates them into the desired movement. This results in the user being able to control the prosthesis, even allowing control more than one joint at a time. Ie rotating a hand & gripping with it or bending an elbow & wrist. How amazing technology is becoming but it does not come without hard work by the amputee, expert knowledge of surgeons and a host of other people that work in different areas of the medical profession.

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