Robot Controlled by Cables may Help in Stroke and Parkinson’s Patients

by Rajshri on  May 07, 2008 at 4:21 PM News on IT in Healthcare
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A unique robotic device has been developed by experts at Florida Atlantic University. This robot may prove useful in rehabilitating patients suffering from Parkinson's disease and stroke.

The inventors of the cable driven robot say that they have designed and built the device to aid physical therapists and their patients to retain injured muscles.

The new robotic device has been made from moving parts like motors, cables and spools, enclosed within an acrylic case with a handle (joystick) that is indirectly connected to the system through magnetic attraction.

Dr. Oren Masory, a professor of Mechanical Engineering in the College of Engineering and Computer Science who developed the cable driven robot with engineering graduate student student Melissa Morris, claims that it is the first-known cable driven robot to utilize a barrier between the operator and the moving mechanisms of the system.

The makers of the device say that the system does not contain any rigid parts that could suddenly harm or injure the user, and that the device can be used in a physical therapy office or at home without supervision.

A safety button has been embedded in the handle of the device. When it is released during operation, a signal is sent to the controller that the patient has lost contact with the handle, and the system immediately shuts down.

The device can operate in various modes which help it guide patients through a series of routine exercises.

One mode enables the patient to begin his/her training by following a pre-programmed path which corresponds to “repetitions” done in traditional physical therapy, while another mode assists the patient as he/she attempts to follow the path, and the robot corrects them if they move outside of the path in much the same way a therapist would do by providing gentle resistance.

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