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Applications of Medical Informatics - Robotic Arm

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1. Applications of Medical Informatics - Robotic Arm & Virtual Reality. Date: 11/14 ... Mechanical & Biomedical Engineering, Northwestern University. 20. VR ... – PowerPoint PPT presentation

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Title: Applications of Medical Informatics - Robotic Arm


1
Applications of Medical Informatics -Robotic Arm
Virtual Reality
  • Date 11/14
  • Reporter ???

2
Outlines
  • A. Robotic Arm
  • B. Virtual Reality (VR)
  • C. VR Robotic Arm
  • Benefits Limitations
  • Summary

3
Robotic Arm
4
Robotic Arm
  • Combined technologies
  • (Bio-)mechanics
  • information technology (IT) -
  • data processing, programming,
  • information management..
  • For therapy
  • Medicine, rehabilitation, exercise science...

5
Robotic Arm
  • Digital Control (Feedback)
  • Input (sensor)
  • Process (decision)
  • Output (motor)
  • Loop (repeat)
  • For Brain Injury Stroke
  • Functions
  • A. Compensation
  • B. Training

6
A. Compensation
  • Performance?
  • ex reaching, feeding...

7
B. Training
  • Passive
  • ?Limitation
  • Active (Robotic Therapy)
  • ?Recovery

8
B. Training - Passive
  • Maintain Functional ROM, ? stiffness
  • ex Continuous Passive Motion (CPM)

9
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
10
B. Training Active (2)
  • With Target
  • Motor control?

11
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
12
Virtual Reality (VR)
13
Virtual Reality (VR)
  • Combined technologies
  • Motion Analysis Motion Capture
  • 3D Model
  • IT
  • (Bio-)mechanics
  • For therapy
  • Medicine, rehabilitation, exercise science...

14
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

15
Motion Capture
  • VICON
  • Motion Capture Data
  • 3D Model


16
Open VR
?
ex
17
Close VR
18
Virtual Reality (VR) Robotic Arm
19
VR Robotic Therapy (1)
Physical Medicine and Rehabilitation, Mechanical
Biomedical Engineering, Northwestern University
20
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
21
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.

22
Benefits Limitations
  • Benefits
  • objective, quantification
  • purposeful, Interaction ? enjoy?
  • risk?
  • manpower ?
  • space
  • Limitations
  • cost
  • maintain
  • multi-disciplines

23
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
24
Q A
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