Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Created muscle model (stripes of rubber; elastic bands)
Strain testing of muscle materials
Design of tubing/plumbing for blood flow
Begin comparison and selection of pump
Accomplishments from Previous Week
Skinfold:
Gelatin proven to be a viable material to create flesh layer that surrounds vasculature.
Pressure delivery:
The fish tank pump delivers a good amount of water pressure. Could be used for arterial pressure source.
Other higher pressure pumps have been delivered and will be compared.
Found appropriate tube connections to build the system.
Team:
Designed a neck collar concept to contain the skinfold.
Muscle model:
Purchased elastic band and rubber sheet to simulate muscle.
Cut rubber sheets into thin strips to simulate the fibrous nature of sternocleidomastoid muscles.
Added silicone over rubber strips and tested the strain.
Goals for Next Week (list names after each item). Use specific and measurable objectives
Skin fold (Reem and Rahaf):
Prepare a model for surgeons to test.
Assessment metrics
Pressure Delivery(Guinevere, Yichen, and Samantha):
Test another pump to see if the pressure delivered is closer to real arterial blood pressure.
Design a pump system to accommodate blood pressure difference in veins and arteries.
Make artificial blood. Dye it blue for venous blood and red for arterial one.
Team:
Continue to develop neck collar design, and how to contain internal components.
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments
The neck collar design is creative and could be convenient to be assembled to a mannequin. The sponsor would provide the team with a mannequin similar to the one used in the final design for tests.
Confirmed with the sponsors of the design of skinfold and muscle setups. Ordered rubber, elastic bands, and silicon to build prototype and muscle models.
Scheduled an appointment with some surgeons on Thursday to test current materials for veins, muscles, and skinfold.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments
Contact Greg to do a material testing (Rahaf has contacted Greg and talked to him in person to complete material testing)
Google Scholar might not be valuable in understanding background information
Risks and Areas of Concern
Finding a material to simulate the fibrous nature of sternocleidomastoid muscle, while maintaining realistic elasticity.
Creating a design for neck collar that can keep the muscle material taut while surgeons retract the muscle to access veins.
Schedule
We are planning on combining the efforts of the two subteams starting week 5&6 into our first iteration of the whole design. Both teams will continue to improve their subcomponents, while keeping track of the overall simulation and ensuring compatibility.
Gantt chart