Sunday, December 14, 2008

In Latest Robotics, New Hope for Stroke Patients



In the article "In Latest Robotics, New Hope for Stroke Patients" from the New York Times, it depicts the use of a robotic arm brace to help stroke patients regain some function in arms in which they have loss motility. The robotic arm device is called the Myomo e100 and helps with assisting stroke patients by sensing the faint electrical muscle signals being triggered in the arm to then help complete the task with some robotic movement. There are physic elements including electrical waves from the muscles and generating torques that can be seen when utilizing the Myomo e100. Electrical signal waves, even when faint, from the arm muscles travel throughout the muscles and cause the activation of the device to help with arm movement - those waves are physical elements that induce the movement. With the device helping with movement, the arm seemingly is able to produce more force from the muscles thus increasing the torque (which is defined as the lever arm multiplied by the force) about the arm joints to better help perform the simple tasks some stroke patients were unable to do for long stretches of time. The picture to the right depicts the Myomo device in motion. The diagram shown to the left shows the structure of the Myomo device and the first recording is a vocal description of the way the device works. The video shows a demonstration of the device in a physical therapy setting.