prosthetic+devices

=Prosthetic Devices = By: Raya Bitar


 * Definition: It is a device used to replace part of a humans body. **

-This device has been aiding people for the past thousands of years. This device now days is being controlled by the brain, and can help the person walk and see easily. -When people control their prosthetic arm or leg it allows a lot less energy to be used.


 * This is a video about a soldier who lost both his legs and replaced them with prosthetic legs . || media type="youtube" key="162tckU73hA" height="305" width="383" ||

How does it work?
•For this device to work it should detect signals from the person’s nervous system. The information is relied on the controller found inside the device. For example wires that detect electrical senses on the skin. •Mechanical sensors affecting the device rely this information to the controller. The controller is connected to the users nerve system and the device itself. It is also responsible for the monitoring and control of the movements of the device. It has its own battery source too.

**also..**
•Those with bad hearing or vision can also find a solution for this. The use of microphones is available to allow a better quality of hearing. Those who can’t hear at all can have surgery where doctors wire their brains to the hearing aid device; this can restore there hearing and get them to hear perfectly. •Those who have damaged eyes, however have a healthy working optic nerves can have a camera implanted in he surface of their eyes. With the practice required the brain could learn to interpret signals from the camera.

**Reliability:** The device should be reliable enough for the patient to know it wont stop working randomly as it is part of the human.
==== **Equality of Access:** Not many developed countries can afford such a device where soldiers in their country or even people have lost a part of their body which can be replaced with technology however it is too expensive for them.====

__Pictures of Prosthetic Devices:__

 * [[image:prosthetic-limb-6.jpg width="320" height="207"]] || [[image:prosthetic-limb-4.jpg width="180" height="282"]] || [[image:phealthBionic_485.jpg width="191" height="197"]] ||