open2012 design-by-example
TRANSCRIPT
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Design by Example: A Web-based Tool for Context-Driven
Biomedical Device Design
Rachel DzombakKhanjan Mehta
Peter ButlerHumanitarian Engineering & Social Entrepreneurship
Penn State University
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HESE: Humanitarian Engineering & Social Entrepreneurship (HESE)
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80% donated - 96% not in use after 5 yrs
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“A hospital found it easier to request a new oxygen concentrator from their European sponsor then to spend the $5 to repair the concentrator they owned .”
- Robert Malkin, Engineering World
Health
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Mashavu: Networked Health Solutions
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Mashavu: Networked Health Solutions
PatientPatient
KioskKiosk
Biomedical DevicesBiomedical DevicesHealthcare
ProfessionalHealthcare
Professional
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Pilot Testing in Kenya – 193 Patients/month
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Need low-cost devices to collect physiological information
Devices/Sensors must be rugged and robust
Less than $10 per device in steady-state production
Need to be able to withstand high use and require minimal repairs
SIMPLEBottom Line is that the devices should be
easy to use and sustainable
System must be designed for Community Health WorkersDesign for low computer literacy
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BIOE 401 – Junior Design
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Using Examples for Context-Driven Design
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Design By Example
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Design Families
System Integration Context Hardware Software Device
Testing Manufacturing
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Design Families
Tech Interface
Socio-cultural
System Integration Context Hardware Software Device
Testing Manufacturing
User Interface
C2CForm Factor
Legal/Regulatory
Price Point
Physiology
Ethical Issues
Safety
Calibration
Anthropo-metric
COMSOL
Materials
Signal Analysis
User Experience
Testing Physical Environment
Quality Control
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System Integration Price Point
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Software User Interface
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Hardware COMSOL Multiphysics
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Context Safety
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Manufacturing Quality Control
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Device Testing Legal/Regulatory
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159 Examples
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54 students
Pulse Oximeter Baby ScaleWeighing Scale Spirometer Calibration
Blood Pressure ENT Scope Stethoscope Thermometer
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Assessment
1. While creating biomedical devices for resource-constrained environments, examples provide students with starting points for design space exploration by making them aware of pertinent factors for consideration.
2. The design tool enables students to have articulate a well-informed rationale backing every decision made during the design process.
3. The design tool facilitates structured documentation of design decisions and design evolution over time.
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Assessment – Initial Results
Focus Groups• Brainstorming • Examples• Past Experiences • Team Work• Empathy
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RFC: Request for Collaborators