project summary revisited
DESCRIPTION
Asthma DPI Novel Design Robert J. Toth Annemarie Alderson, Annie Saha, Stephanie Shaulis Timothy Corcoran, PhD 03/29/2005. Project Summary Revisited. To design and develop a dry-powder, single-dose, disposable inhaler - PowerPoint PPT PresentationTRANSCRIPT
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Asthma DPI Novel Design
Robert J. Toth
Annemarie Alderson, Annie Saha, Stephanie ShaulisTimothy Corcoran, PhD
03/29/2005
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Project Summary Revisited
• To design and develop a dry-powder, single-dose, disposable inhaler
• To create a prototype that is self contained, ruggedly constructed, weather and water proof, lightweight, small, ergonomically designed, and actively mobile
• To be used by asthmatic individuals that desire a temporary alternative to traditional devices during physical activity and/or in extreme environment settings
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Personal Focus
Anthropometric Data(Annie)
Drug & Dosage Data(Stephanie)
Excipient Data(Myself)
Materials Data(Annemarie)
Prior Art(All group members)
Mentor Suggestion/Feedback(Dr. Corcoran)
Develop and computationallytest a prototypein Solidworks
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Prototype Development Iterative Design Process
• Create Solid Model• Perform CFD (COSMOS)
• Physiologic boundary conditions• Obtain pneumatics within device consistent
with 5 m particle aerosolization
• Modify/refine the model• Re-perform CFD testing• Continue cycle until acceptable solid model
completed
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Prototype Development Summary
• 9 solid models developed• Initial CFD indicated rotational flow
• Inefficient at dispersing and pneumatically transporting micron-sized particles
• Due to boundary conditions• Outlet velocity profile v. outlet pressure
• Proper boundary conditions implemented• Streamlined flow patterns observed• Model-8 rapid prototyped through Quickparts
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Model-2
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Model-3
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Model-6
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Model-7
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Model-8
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Prototype
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Model-9
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Tasks to be Completed• Modify physical prototype – Steph will explain
why• Modify/Finalize Model-9• Order second Quickparts prototype• Finish the design report component of the
final deliverable document• Collaborate with my teammates on
developing the final presentation• Give the presentation• Graduate, May 1st
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A Quick Stop Along the Road to Graduation