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Name of NGM Educator:

Ismail Orabi, University of New Haven

Name of Host Company:

Covidien

Grade Level:

college level

Student Work Types:

1. Seminar

2. Construction of a case study

Task Abstract:

Project 1 - Study for Payout weights on AAM slides

Project 2 - Standardize heat-tipping windows

Project 3 - Move backlight on RSA 2 up camera

Task Objectives:

Students should be able to transform a physical system into a mathematical representation, allowing them to accurately predict the system's behavior.

Esssential Understandings/Questions:

n/a

Task Description:

Study for Payout weights on AAM slides - Study the tension on suture sizes 4/0 to 2.  The ideal tension should stretch the suture to the smallest diameter without shearing during heat tipping or spring back after cooling.

Standardize heat-tipping windows - Perform response optimization on suture sizes 0,3/0 and 4/0.  The previous validations were done with random suture diameters for each suture size.  This led to various window ranges on each machine.  Using the DAMIC process it was found that the current windows do not capture the entire diameter range from the supplier.  The amount of energy used by each suture size must yield a high shear strength and good insertion/pull strength.

Move backlight on RSA 2 up camera - Line up between camera, needle target and backlight needs to be set and verified.  Robot inspection point needs to compensate for varying needle sizes .050 to .022 diameter.  Long length is out of FOV and short requires too much angle for proper clearance of the tooling.  This can have a charted range for each needle diameter size.

Resources Required: computer with internet access, scientific journals, and books.

Prior Learning Required: Engineering mechanics and programming.

Context within which work is produced:

hands-on projects

group work

Educator Comments:

This course activity will be given to students as one of a few possible projects that they can do as part of the course work.  It will be more advanced to directly involve the student in the details of research work that I did.  It offers students an opportunity to learn about the real world problems.  It provides a clear example of how numerical computational must be used in the ongoing development of new technologies.