Table of Contents
Flow Measurement Devices
- US Patent #7212937 depicts a device which uses a micro-controller with multiple sensors to achieve highly accurate data.
- The Citrex Flow Analyser is a flow measuring device which is currently being marketed. It is highly accurate but also very expensive.
- US Patent #5326973 shows a device which interrupts the flow of a gas to ascertain its components.
#5925831 contributed the most to the team's current
measurement design, using an obstruction
to create a pressure difference along a length of pipe.
Overall, the team was most impressed by the first
and second devices. Both contain two groups of
on either side of a resistive sieve arranged in the gas channel and lose almost no flow making them precise
pieces of instrumentation.
However, 14026's design borrows most heavily from
the fourth, since it is something the team could
replicate and improve upon at a modest price.
#5403192 is for a computer-controlled lung assembly
which uses a computer program to simulate
diseased states. However, it is intended to be used for training of anesthesiologists.
Patent Application WO 1997012351A1 details a lung
assembly comprised of a mechanical piston. Its flow
measurements are within 1% and it is capable of varying compliance and breathing mechanics.
#2011025078 is for a lung assembly which has basic
ability to alter compliance, but is intended for
use in training healthcare practitioners.
Patent Application CA 2699661A1 shows another
assembly which can vary compliance, but is slanted
simulating patients' spontaneous breathing.
- EU Patent #0079795B1 utilizes a bellows mechanism to simulate spontaneous breathing.
#6910896 is for a lung assembly which most closely
inspired what the team designed. It is able to
generate waveforms of respiratory parameters.
Concept Generation & Morphological Analysis
Conceptual Systems Architecture
For Side-by-Side Comparison with Medical Device
PUGH Chart 9/27/13...
PUGH Chart 10/24/13......
General Testing Process
Team 14027 maintains a Risk List which details
possible failures and the predetermined correct course of
action in each circumstance.
The team revisits and updates these risks every three weeks to ensure that they remain fresh in the minds of team members.
Original Risk Management Analysis created September 13, 2013
Revision 1 as of September 26, 2013
Revision 2 as of October 9, 2013
Revision 3 as of October 23, 2013
Revision 4 as of November 5, 2013
Revision 5 as of December 2, 2013
Revision 6 as of December 3, 2013
Revision 7 February 4, 2014
Week 3: Problem Definition ReviewThe Week 3 Review gave Team 14027 the opportunity to show the customers their understanding of the Project Readiness Package
and to ask for their input.
presentation, the customers provided feedback,
stating that the team was on the right track. They did,
the team not to restrict themselves to a device, but to also be open to the idea of creating a process.
Week 6: System Design ReviewThe Week 6 Review allowed the team to show their ideas for different forms of their project. The presentation highlighted the conceptual
aspects of the design problem, checking for feasibility without attempting to go straight into solutions.
The customer was again asked for, and provided feedback
based on what they saw. The feedback was largely
positive, with the customer
expressing some concern regarding software and data storage capabilities, as well as possible issues with sensor signal delays. The
team resolved to make signal timing an integral part of planning.