1. Medical Prosthetics for Plastic Surgery-Adherent Interface System Team: Lindsey Carlson, Chris Walker, Matt Kudek, Paul Schildgen, Nicole Daehn Client: Gregory G. Gion, M.M.S., Medical Art Prosthetics, LLC Advisor: Willis Tompkins October 19, 2007

2. Overview Problem Statement Background Design Requirements Proposed Designs Design Matrix Future Work Questions

3. Problem Statement Design an efficient method to effectively mix and dispense a platinum cured, two component adhesive for prosthetic use

4. Background Owns Medical Art Prosthetics, LLC Designs facial and somato prostheses ◦ Silicone and polyurethane prostheses Operates out of Madison, WI and Dallas, TX An example of a nasal prosthesis.

5. Current Methods Uses a one component adhesive ◦ Sets too quickly ◦ Damages prosthesis Gun and Static mixing tube ◦ Bulky and expensive Hand-mixing ◦ Produces excess waste ◦ Difficult to properly measure amounts

6. Design Requirements Lightweight Compact size Effective mixing Minimize waste and cost for patients Easy and precise application Proper proportions of components

7. Proposed Design #1: Clip Pack Description Two-part flexible divider pouch ◦ Holds premeasured amounts of each component ◦ Clip separates components ◦ Self-contained mixing

8. Proposed Design #1 Pros ◦ Easy to dispense ◦ Clip used for application ◦ Easy to manufacture ◦ Inexpensive Cons ◦ Amount of adhesive pre-determined ◦ Must be packaged by company ◦ Possibility of bursting prior to application

9. Proposed Design #2: One Tube Syringe Description Two-component plastic syringe Mixing rod initiates mixing Components separated by aluminum seal

10. Proposed Design #2 Pros ◦ Mixes thoroughly ◦ Easy clean-up ◦ Accurate and consistent proportions Cons ◦ Multiple piece system ◦ Expensive for daily use ◦ Amount of adhesive pre-determined

11. Proposed Design #3: Double Syringe Description: ◦ Two phase system  1. Both components combined in static mixing tube  2. Air pressure pushes adhesive out of tube

12. Proposed Design #3: Double syringe Pros ◦ Little to no waste ◦ Precise and controlled application ◦ Mixed thoroughly ◦ Controlled portions Cons ◦ More equipment ◦ Bulky

13. Design Matrix Clip Pack One Tube Syringe Double Syringe Mixing Capability 689 Client interest / future marketability 959 Precision of Application 688 Ease of Use 965 Minimal Waste 759 TOTAL 373240

14. Future Work Develop barrier to protect prosthesis Continue research on design of product ◦ Finalize design Continue to meet with client to develop efficient designs Construct prototype Testing

15. QUESTIONS? Gion, Gregory. The Medical Art Prosthetics Clinic. 16 Oct. 2007.. Adhesive Packaging Specialties, Inc. 16 Oct. 2007..