156B Week 3

Team #13 (Laryngotracheal Stylet and Cannula)

Team member:

David Ivison

Daniel Lee

Ascher Ramsay

Jiahao Sun

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Optimization on material choices and specific dimension for cost, flexibility, and safety factors of the design are under progress.

  • Fabrication on a smaller scale prototype is in progress.

  • Implementation on spray mechanism and barbed connector in progress

  • Design of device top to provide a hand-hold in consideration

Accomplishments from Previous Week

• • Finalized the 1st design, tube with internal stylet, as our current approach

  • Presented all the design options and ideas we have to sponsor. Further discussion and clarification with him has been settled.

  • Orders on key components has been placed. (smaller scale of tubes and stylets made of different materials, barbed connector, and small spray tip.

  • Justification of key decision on board design and components has been made

  • A set of dimension of design within requirements has been made and prepared for implementation.

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

• • Implement the current design with a smaller scale of prototype builded-up 

  • Readjust specific dimension 

  • Implement spray mechanism design idea and more research in depth.

  • Machine all necessary component

  • Another risk reduction test on the smaller scale design

  • Analyze testing results

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

• • Sponsor was satisfied with the work we have accomplished

  • Sponsor preferred the 1st design to be the optimal one as well

  • Be prepared for unexpected issues or problems when the the sclar of current design is shrunk down.

  • The contact between the anesthesia with the metal stylet shouldn’t be a problem.

  • The deformed angle of current laryngotracheal tube has never exceed 45 degrees based on sponsor’s experiences. (Sharp-shaped deformation is not usually needed)

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

• • Concise analysis of minimum bending radius on small-scaled prototype in final report

  • Try different angles of deformation to analyze the design’s limitation

Risks and Areas of Concern

• • Decreasing Tube Diameter

  • The decrease of minimum bending radius 

  • Difficulties on purchasing or manufacturing a spray tip with small dimension

  • Loss of anesthesia inside the tube

Resources or Information Required but not Available

• • N/A so far.

Schedule

• • Describe upcoming milestone

Implementation on the small-scaled prototype with sprayer

• • Update Gantt chart.