Trey DeLong Lacey Gorochow Brian Rappa Adam Vandergriff Sandra Wadeer

Problem Statement  Current tissue retractors are narrow, multiple retractors are required especially in obese patients NY times reports 34% adults are obese +Surgical Techs($20.00/hr*2-4hr/surgery*200k surgeries/year) Time of surgery increases as well  Previous team designed an adjustable retractor Complex and impractical for industrial production Prototype could not be used in surgery

Adaptor Design Requirements  Must fit multiple patient sizes and provide a clear view of the surgical site  Must be cost efficient  Must function adequately in the surgical procedure

Primary Objective Design a modular adaptor for retractors that:  Keeps back adipose tissue  Is easy to attach to retractor  Is simple to manufacture  Is ready for use in surgery

Preliminary Design  Wing-like structure  Attachment mechanism: Hook and slot Tapering method  Form by bending metal

Goals  Reduce total hip replacement surgery cost Less personnel in the operating room Less retractors needed for surgery  Increase vision and work room for the surgeon Increase efficiency of the surgery Reduce surgery time

Design Parameters  Easy to use  Small size  Simple design- easy to manufacture  Lightweight  Smooth  Biocompatible- stainless steel  Curve/size of modular adaptor

Performance Metrics  Retractor attachment work on 95% of patients Different size attachments  Costs Keep production costs minimal Predicted to be ~$300 for retractor and attachments

System and Environment  Role in surgery Increase view of region and allows access  Why its beneficial to the surgeon Reduce people near patient Reduce number of retractors Make surgery easier

Testing Methods  Verification  Validation  Hardware Testing  Stress Testing Pro/E Mechanical Analysis  Safety Testing

Next Steps…

References   m#Anchor-APC m#Anchor-APC  th/14obese.html th/14obese.html  ?rid= ?rid=1889  tion/1/id/8140/template/PC/navid/ tion/1/id/8140/template/PC/navid/10427