Capstone Week 11 - Kierstin Parker

 

From the above pictures: 

  • In class, we had our ethics presentations

  • In the lab- from the pictures above- I worked on drumeling and drilling epoxy housing for the valves. Also tried to cut the epoxy into similarly shaped resistances, but this did not work super well. Figured out drill sizes that would work for the nose tubing and drilled into the housing. 


  • Meeting with Brinkley to discuss how we could put the rolled tape in one of the epoxy molds to try to eliminate the drill portion. Also talked about our frustration and she helped me write and edit my email to Dr. Gordon. 

  • Met with Dr. Gordon to discuss class issues and resolved them. 

  • Met with Brinkley back in the lab to clean up my workspace and drumel out a cube housing for her to epoxy 

For the above pictures in the lab: 

  • I tried to find cutters to cut the oddly shaped valve into a square and tried to drumel the sharp parts, but I did not think it could be salvaged to use safely. I created new square molds for the epoxy which will be safer to drill into. 

  • Brinkley and I brainstormed how we could make resistors of the same shape, so we used hardened epoxy we had previously put inside tubing so it would have a uniform shape and we cut it into different lengths so it would have different resistances 

For the above lab pictures: 

  • We tested the different length epoxy resistors in the nose tube and it worked well (results below) 

  • We brainstormed how to do this on a smaller scale 

  • We used different-sized sutures but that didn’t work as well as we wanted 

  • We used different lengths of the same size suture and that worked well 

  • We also tried to put epoxy in the small tubing and cut it open like we did to make the resistors for the nose tubing but it was too small 

  • The pink in the pictures shows the inserted portion of the suture into the ahmed-sized tubing

For the above lab pictures: 

  • We got the medical tubing and we tried to fill the packaging with silicone to create a nicely shaped valve, but it leaked and did not work 

  • We cleaned up our workspace at the end because we had a lot of stuff we didn’t need anymore and trash 

The drip rate chart: 

  • I used the videos I took of the different systems and cut them so they were all 6 seconds. I then counted how many drips occurred with the different-sized resistors.

For the above pictures: 

  • Went in the lab to check the epoxy molds done yesterday 

  • Drilled into them for two different-sized tubings (Nose and Ahmed) 

  • Also took out the epoxy that was formed in the nose tubing that will be cut at different lengths for the resistances (circled in pink) 

  • Worked on cleaning out the drill residue so water can flow freely in the prototypes

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