Telemedicine and Assistive Technology

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Telemedicine and Assistive Technology
Ronald Merrell, MD, FACS Azhar Rafiq, MD, MBA
Virginia Commonwealth University, MITAC Richmond
Virginia Meditac.com
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The Astronaut in a Hostile and Remote
Environment

• Apprehend the physiologic status
• Collate the data
• Interpret the data locally
• Propose and realize a response
• Record the event and transmit to a distant
  management site
• Design, validate and implement sensor network for
  semi-autonomous physiological monitoring system.

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Analogies for Assistive Technology Requirements

• Medical situations or probabilities that require
  prompt response and might otherwise confine the
  individual to a strictly monitored environment
• Desire for maximal independence of mobility and
  location
• Need for local prompt alert and response while
  maintaining strong connection to a distant
  management site
• Great technical solutions for sensing, data
  management and telecommunications awaiting
  application

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Program Description
Sensor network
Data sampling and conditioning
Data pre-processing
Data archive and analysis
Data communication
VPack
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Sensor network

• Skin Surface Temperature
• Galvanic Skin conductance
• Pulse Oximeter - Heart Rate
• Pulse Oximeter - Oxygen Saturation (SpO2)
• Plethysmograph Blood Volume (Perfusion)

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Advanced EVA Desert RATS 2005 CAIpack
CAI-1
SCOUT
CAI-2
Hab RV
SCOUT Camp
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Bio Sensor Network

• Physiological sensor network in direct contact
  with skin
• Integrate sensor signals into a single feed to
  computer with VPack
• All wires from sensors
• embedded inside sock
• to prevent tear in suit bladder

Pulse oximetry sensor
Skin Temperature sensor
Galvanic Skin Resistance
Liquid cooling garment (overlay)
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Data archive and analysis

• ASCII file format with fixed column format
• Date and time stamp
• Data analysis algorithm
• Alerts communication with text message to cell
  phone

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Data display interface
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Diabetes monitoring applications
Alarm - text message
Chronic care- Diabetes monitoring
Software interface
Demonstration b/w San Francisco and Virginia
Diabetes technology conference
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Passive Wireless Monitoring for Signs of
Hypoglycemia

• Ronald C. Merrell, MD, FACS
• Virginia Commonwealth University
• Richmond, Virginia

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HYPOMON
HypoMon
MEASURES EKG AND SKIN IMPEDANCE
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Assistive Living Applications

• Activity
• Location
• Vital signs
• Acute change alarms
• Trending alerts
• Messaging to reconfirm regimen and refine
  response to changes

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Assistive Living Applications

• Alzheimer Syndrome
• Physical impairment due to neurological injury
• Congestive heart failure monitoring
• Diabetes mellitus monitoring
• Arrhythmia monitoring
• Sleep pathology
• Fall alerts
• Alerts for loss of consciousness
• Seizure alerts
• Monitoring for peripheral vascular disease
• Home or out of home

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• Thank you
• Our SBIR partners
• Sleepmate Inc
• Carillion Health Systems
• AFrame Inc
• VCU Health System
• This presentation and a pertinent publication are
  available on our web site under presentations.

ronald.merrell_at_vcu.edu