156B Week 7

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

• • Designed the top of the insertion tube and ready to discuss with the machine shop the potential for manufacturing the top of the tube

  • Designing a component for the control lever to attach to the shaft

  • Designing multiple variations of shaft connectors to determine which one would connect to the shaft easily

Accomplishments from Previous Week

• • Build a prototype that used the distal tip and was able to rotate the distal tip with the shaft mechanism

  • Built two methods of detachment that were tested and demonstrated to the sponsor

    • Narrowed down to one detachment design for the final prototype

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

• • Designing the lever control and will 3-D print the mechanism for testing (Gio & Matt)

  • Building multiple variations of the shaft fitting to connect to the lever control and the shaft (Gio & Matt)

  • Designing the insertion tube head and control body for detachment to prepare for machining (Eric & Mark)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • Finalizing design solution soon

  • How much for bending section, for manufacturing purposes

  • Just using flexible tubing to encase everything and for prototype

    • instead of buying actual insertion tube

    • can go ahead and buy ~6mm tubing and bending section mesh for distal tip

  • Conical hex lever on control lever to easily connect with shaft

  • Gantt chart for next meeting

    • tasks

    • task owners

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • (in person, 5/7)

  • come to final design solution soon

  • can just bond smaller tubes within one larger one (insertion tube) to serve as the routes

    • or sew the smaller tubes to the big one

    • talk to Tom about how to do this

• have middle part of shaft thinner to take up less space

  • brass shaft

  • talk to Tom

• build own cross section at ends of shaft

  • ex: two slots "X"

• report needs lots of work

  • reference annotated figures

  • use past tense

  • move pictures towards beginning for introduction

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • N/A

Risks and Areas of Concern

• • Connecting the angulation wires to the shaft

  • Durability and consistency of the materials and the shaft mechanism 

Resources or Information Required but not Available

Schedule

• • Completing a full prototype

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • 1409

Progress on Report and Webpage

• • Continuing progress