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The design of an in-vivo rotator cuff measuring tool PROJECT PROPOSAL

University of Pittsburgh Senior Design - BioE1160. The design of an in-vivo rotator cuff measuring tool PROJECT PROPOSAL. Kathleen Bieryla, Katie Fronczak, Martha Loehr, Eric Rainis. Arthrometric, Inc. Background. Shoulder is the most injured joint in the body

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The design of an in-vivo rotator cuff measuring tool PROJECT PROPOSAL

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  1. University of Pittsburgh Senior Design - BioE1160 The design of an in-vivo rotator cuff measuring toolPROJECT PROPOSAL Kathleen Bieryla, Katie Fronczak, Martha Loehr, Eric Rainis Arthrometric, Inc.

  2. Background • Shoulder is the most injured joint in the body • Rotator cuff tears are the most common shoulder injury • Preferred method is arthroscopic surgery

  3. Overview- Problem • Surgical methods dependent upon tear dimensions • Currently there is no tool available to measure these dimensions Scapula Humerus

  4. Overview- Proposed Solution • The Arthromeasure is a one-handed tool for surgeons to use during arthroscopic surgery in order to measure the extent of rotator cuff tears • Provides accuracy as specified by the user • Allows for correct repair techniques to be utilized

  5. Project Goals • The ultimate goal is to create a tool to meet surgeons’ needs • High-level timing goals for 2004 • February—Initial prototype • March—Cadaveric testing • April—Final product and grant proposal

  6. Description Diameter = 6 mm Length = 25 cm

  7. Features & Benefits • Convenient moving mechanism on the handle • Provides desired accuracy • a: +/- 1 cm • b: +/- 5 mm • Gives surgeon an easy way to determine the best method of repair

  8. Design Alternatives • Digital output • Disposable • Push-button locking mechanism • Dual wire design • Caliper design

  9. Competitive Analysis • Currently, no tool is available • A hook of known distance 3mm is used to estimate tear • Strengths • More accurate • Tool specific for the problem • Easy to use

  10. Technology • Solidworks: Solid modeling and structural analysis • Swanson Center: Rapid prototyping process • Arthroscopic system

  11. Team/Resources • MSRC • Patrick McMahon M.D. • Richard Debski Ph.D • Lab and equipment • Swanson Center • Rapid prototyping process • Bioengineering Department • Funding • Limitations • Availability of materials

  12. Schedule

  13. Team Responsibilities Eric Katie F. Martha Katie B.

  14. Current Status • Met with surgeon • Understood problem • Initial SolidWorks model • Initial design history file • Established a working plan

  15. Acknowledgements • Dr. Patrick McMahon • Dr. Richard Debski • MSRC • Department of Bioengineering, University of Pittsburgh

  16. QUESTIONS??

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