13th International Conference on Fracture June 16–21, 2013, Beijing, China -5- environment like automatic door openers, environmental control units and modular unit for electric wheel chair control and control units for other assistive technologies [9]. 2. Designing of technology and interfaces for quadriplegic people Paralysis is broadly characterized by the loss of muscle control, power and movement to one or more parts of the body. Quadriplegic is a person with damage to the spinal cord at a high level, resulting in sensory and motor function impairment in all four limbs and the trunk. It is caused by damage to the brain or the spinal cord at a high level C1 - C8 - in particular, spinal cord injuries secondary to an injury to the cervical spine. The persons develop a dependency that limits his possibilities and his quality of life. Independence in his daily activities improves notably his autoesteem and liberates his family of an additional responsibility. Using the knowledge and experience on rehabilitation technology, the research group began thinking of developing new products for people with quadriplegia due to spinal cord injury or other causes. The basic needs are the locomotion, activation of devices as light, television, doors remote control or communications. The present project intends to identify the basic needs of quadriplegic people and the possible solutions using technology of infrared tracking and new design of oral mouse. Diagrams of the Different path result of the jam movements, used for oral mouse design. (Figure 2-5) Figure 2. Fontal and lateral movements Figure 3. Upper path
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