Applications of Medical Informatics - Robotic Arm

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Applications of Medical Informatics -Robotic Arm
Virtual Reality

• Date 11/14
• Reporter ???

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Outlines

• A. Robotic Arm
• B. Virtual Reality (VR)
• C. VR Robotic Arm
• Benefits Limitations
• Summary

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Robotic Arm
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Robotic Arm

• Combined technologies
• (Bio-)mechanics
• information technology (IT) -
• data processing, programming,
• information management..
• For therapy
• Medicine, rehabilitation, exercise science...

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Robotic Arm

• Digital Control (Feedback)
• Input (sensor)
• Process (decision)
• Output (motor)
• Loop (repeat)
• For Brain Injury Stroke
• Functions
• A. Compensation
• B. Training

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A. Compensation

• Performance?
• ex reaching, feeding...

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B. Training

• Passive
• ?Limitation
• Active (Robotic Therapy)
• ?Recovery

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B. Training - Passive

• Maintain Functional ROM, ? stiffness
• ex Continuous Passive Motion (CPM)

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B. Training Active (1)

• with resistance
• Strength, Endurance?
• ROM, Velocity?

Unicycle Two-Link Arm (UTLA)
Kinematic Constraints
Northwestern University Mechanical Engineering
Dept. Laboratory for Intelligent Mechanical
Systems
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B. Training Active (2)

• With Target
• Motor control?

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B. Training Active (2)

• MIT-MANUS
• Robotic Therapy on Motor Impairment and Recovery
  in Chronic Stroke. 1998

Massachusetts Institute of Technology (MIT)
Department of Mechanical Engineering
Department of Brain and Cognitive Sciences. 1994
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Virtual Reality (VR)
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Virtual Reality (VR)

• Combined technologies
• Motion Analysis Motion Capture
• 3D Model
• IT
• (Bio-)mechanics
• For therapy
• Medicine, rehabilitation, exercise science...

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Virtual Reality (VR)

• A. Virtual Environment
• vision audition (olfaction, temperature,
  tactile, vestibular...)
• B. Reality Motion (virtual manipulate)
• role play, motion capture
• feedback ? virtual environment
• Types
• Open VR
• Close VR

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Motion Capture

• VICON
• Motion Capture Data
• 3D Model

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Open VR
?
ex
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Close VR
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Virtual Reality (VR) Robotic Arm
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VR Robotic Therapy (1)
Physical Medicine and Rehabilitation, Mechanical
Biomedical Engineering, Northwestern University
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VR Robotic Therapy (2)

• Robotic Arm for Stroke Victims
• Doctors and Engineers Develop Virtual-Reality
  Recovery for Stroke Victims. 2005

IEEE-USA and the Human Factors and Ergonomics
Society
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VR Robotic Therapy (3)

• Hocoma - Armeo 2006

• task-oriented upper extremity therapy
• stroke, traumatic brain injury or other
  neurological diseases and injuries.
• an adjustable arm support
• augmented feedback
• a large 3-D workspace allows functional therapy
  exercises in a virtual reality environment.

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Benefits Limitations

• Benefits
• objective, quantification
• purposeful, Interaction ? enjoy?
• risk?
• manpower ?
• space
• Limitations
• cost
• maintain
• multi-disciplines

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Summary

• Clinical evidence
• physical performance maintain ROM, strength
• motor recovery in stroke.
• cognition rehabilitation.
• now future
• OT Roles ?

Effects of robotic therapy on motor impairment
and recovery in chronic stroke. 2003
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Q A