Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Our final design for the arm portion of the suspension system has been completed and we have begun fabrication on the arm.
Accomplishments from Previous Week
We have purchased raw materials and we are currently working on a prototype of the arm design in order to test the X-Y plane movement. We have also met with Steve Roberts to create a circuit design that will fit our needs. Electromagnetic brakes and the lead screw are in line to be purchased.
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Purchase electromagnetic brakes (Team)
Fabricate and assemble arm (Alan, Dan, Young)
Begin fabrication of pedal prototype (Janak, Frank)
Finalize solidworks model of entire system (Team)
Send solidworks model to lead screw manufacturer to ensure correct design is chosen (Team)
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
After showing our sponsor several user interface options, the decision was made for two pedals to control the vertical motion, one for lifting and one for lowering. (4/23 - in person)
Our sponsor contacted a camera manufacturer and we will have a camera to work with for our prototype within the week
Several clamp designs were videotaped to give us an idea of different clamping mechanisms we can work with.
O.R. table in the bio medical library can be accessed with prior notice
Budget is flexible up to $500 dollars with prior notice
Drapes will be given to the team next meeting in order to design drape suspension
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Fine controls are critical, and this could be a high risk issue. (4/19 - Design Proposal comments)
Once the laryngoscope prototype is set up, measure the inadvertent drift force caused by the laryngoscope cables
Make sure the locking mechanism does not cause undesirable motion
Show figure of complete system on the operating table
Vibration is more of a concern than the stress on the arm
Check if there is a way to keep the arm horizontal
Need figures to follow the Matlab analysis
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Start developing pseudo-code (comments made at Design Proposal Presentation 4/19)
Presentation ran a bit too long
CAD of ideas with patient and table included - visualize overall schematic
Hard to follow the data/graphs in the presentation
Address the possibility of vibrations
Failure mode and effect analysis
Risks and Areas of Concern
Vibrations of the arm
Inadvertent movement of the arm caused by cables
Inadvertent movement of the arm caused by brake system (all risk areas will be solved after a prototype is completed and tested within the week)
Resources or Information Required but not Available
Video of entire procedure
Schedule
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
Less than $50 has been spent, $1450 still remains
Progress on Report and Webpage
Updated and password protected