156A Week 9

Accomplishments from Previous Week

• • Comprehended the desired design from the sponsor in-depth

  • Participated in existing design to get a broad idea of material deformation

  • Online research and exploration on relating paper regards to general material choices

  • Narrowed down all potential ideas from team members

  • Summarized all potential concerns/risks in details 

  • A rough schematic of the design in mind 

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Develop a testbed of the combination of Laryngotracheal cannula with a malleable guiding stylet.

  • Perform the practical test for the maximum deformation of the tube with injected fluid, and the minimum bending rate when fluid gets jammed.

  • Finalize the first design for risk reduction in detail in terms of dimension to allow for usage by different sized endotracheal tube, the material choice to optimize flexibility and structural integrity, the mechanism for tubing retraction, and the spray mechanism.

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • The first priority is always combining the guiding stylet with the Laryngotracheal into a single device made of bendable material to increase efficiency during the intubation procedure.

  • Changes or optimizations can always be made as long as having the same desired functionalities and should be manufactured in low cost for financial benefits. 

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

For risk-reduction presentation:

• • Audience need to understand

  • Show video, hardware, own drawing with colors and parts clearly indicated

  • Number of concepts: around 3-4 to choose from. Have them displayed one by one.

For objective:

• • Only choose one for the final goal, ex. Find out the material for the tube that's able to bend as we desired

  • For plastic deformation, we want certain elongation with no breakage. 

  • Think about what features do we want

  • Choose existing material or new, groundbreaking material.

Risks and Areas of Concern

• • Frictions between the L-tube and E-tube, and the friction between the stylet and L-tube.

  • Angle of the tip at certain degree allows to feel the vocal cord

  • Shearing strength of the material

  • Abrasion with intubating tube

  • The maximum radius of bending

  • Softness of the material for protecting soft fragiles

Resources or Information Required but not Available

• • N/A so far.

Schedule

• • Describe upcoming milestone

Preliminary Hardware and Testing: Perform practical test on material deformation with analysis in depth for potential optimization in future.

• • Update Gantt chart.