EDGE™ Project Status Update P09023 – Air Muscle Artificial Limb Next Generation Jim Breunig (ME)

EDGE™ Project Status Update Project Name –Air Muscle Artificial Limb Next Generation Project Number –P09023 Project Family –Artificial Organ Track –Assistive Devices and Bioengineering Start Term – planned academic quarter for MSD1 End Term – planned academic quarter for MSD2 Faculty Guide –Dr. Kathleen Lamkin-Kennard (ME) confirmed Faculty Consultant –Professor John Wellin (ME) confirmed Technical Assistant –Chris Sullivan (ME) confirmed Primary Customer –Dr. Kathleen Lamkin-Kennard (ME) confirmed

EDGE™

Product Description This project is in its second generation. The overall goal is to design and build an artificial limb (arm and hand) that is capable of all of the directions of freedom of a human hand. The first generation accomplished design and building of the arm and the first three fingers. The main goals for the second generation project is to add a pinky finger, thumb and optimize the current design. The design and construction of the pinky finger and thumb should be accomplished by the end of the winter quarter of the 2008 academic year.

EDGE™ Product Description This project is in its second generation. The overall goal is to design and build an artificial limb (arm and hand) that is capable of all of the directions of freedom of a human hand. The first generation accomplished design and building of the arm and the first three fingers. The main goals for the second generation project is to add a pinky finger, thumb and optimize the current design. The design and construction of the pinky finger and thumb should be accomplished by the end of the winter quarter of the 2008 academic year.

EDGE™ Project Deliverables Design of Pinky Finger –Determine Joint Types/Locations –Determine muscle attachments –Controls Design Design of Thumb –Determine Joint Types/Locations –Determine muscle attachments –Controls Design

EDGE™ Deliverables Continued Construction of Pinky Finger and Thumb –Rapid Prototype –Build –Test / Redesign Optimization –Controls and Mechanical Optimization Enhance reliability Enhance ease of use Brainstorm solutions and alternatives –Implement Design Solutions –Test Design

EDGE™ Primary Market This project is to be designed for research being conducted by Dr. Lamkin Kennard and a Masters student. The findings in this project will be applied to a scaled down model for use in microvascular surgery.

EDGE™ Secondary Market This project could serve as a way to entice future students into the engineering program. It is possible that this product could be used for wireless surgery. Patients could have surgery performed by a doctor thousands of miles away. Findings could also provide solutions for amputees.

EDGE™ Stakeholders Dr. Lamkin Kennard Future MSD Students Previous MSD Team Air Muscle Suppliers –Note: Air muscles are being built by the current team for significantly less cost than what they are being sold for. Bioengineering Field RIT as a whole Future Engineering Students Future Patients

EDGE™ Staffing Pinky and Thumb Teams 2 Member Teams ME or ISE Design finger Determine muscle sizes and attachment Optimization Working with the controls team to help provide control solutions Implementation and iteration of the proposed design and

EDGE™ Staffing Continued Controls Team Labview coding ISE and CE Implementation and design iteration of the proposed software and design iteration The controls team members are expected to collaborate with the thumb and pinky team to develop an optimization plan.

EDGE™ Intellectual Property Considerations All work must be released to public domain Dr. Lamkin Kennard should be notified if a student wishes to file a patent.

EDGE™ Team Values and Norms Team members are expected to be punctual, thorough, accurate, professional and committed. Specific guidelines are laid out on Edge Weekly peer assessments Weekly round table meeting

EDGE™ Grading Assessment GradeMSD IMSD II D Pinky and Thumb are Designed No muscle analysis No Documentation Controls plan still in progress Design is not scalable Pinky and Thumb are constructed Muscles are attached Hand does show all DOF Software complete, but ineffective C Grade D requirements plus… Palm arching incorporation Muscle analysis complete Moderate Documentation Grade D requirements plus… Palm shows arching motion Software works inconsistently B Grade C Requirements plus Required items are documented Design is scalable Grade C Requirements plus Software works consistently Hand shows all DOF flawlessly A Grade B Requirements plus… Cost effective design Control algorithm can be tested Documentation goes above and beyond expectations Grade B Requirements plus… Software is easy for anyone to use Software incorporates extra feature such as sign language Hand is robust and does not break

EDGE™ Resources NameRelation to ProjectAvailable Dr. Lamkin KennardFaculty Guide/CustomerYes Professor WellinFaculty ConsultantYes Faculty Environment ItemSourceDescriptionAvailable Lab General Work and Storage Room Yes Lab Software Development Room Yes WorkspaceSenior Design Senior Design Bench Pending

EDGE™ Resources Cont. Equipment ItemSourceDescriptionAvailable Compressed Air Bioengineering Lab Power Air Muscles Yes Desktop PCAll Labs Used Throughout Yes

EDGE™ Safe Ability to be Scaled Down Easy to Operate Reliable to use Allow for future optimization Add Thumb Maintain all DOF of human thumb Determine Joint Locations of Thumb Determine Muscle Locations of Thumb Implement Design on Current Hand Robust Design Add Pinky Maintain all DOF of human pinky Determine Joint Locations of Pinky Determine Muscle Locations of Pinky Implement Design on Current Hand Robust Design Optimize Mechanics Determine cable optimization methods Optimize Controls Follow all regulations (yet to be specified) This project must basically add a thumb and pinky finger to an existing artificial hand. All of the directions of freedom of a human hand must be maintained. The project also involves optimization of the past project to make it more robust and make the controls interface easier to use. Needs Statement

EDGE™ Needs Summary 1. Safety 2. Follow all regulations 3. Add Thumb 1.1. Maintain all DOF of human thumb 1.2. Implement Design on Current Hand 1.3 Robust Design 4. Add Pinky 2.1. Maintain all DOF of human pinky 2.2. Implement Design on Current Hand 2.3 Robust Design 5. Optimize Mechanics 3.1 Determine cable optimization methods 6. Optimize Controls 7. Ease of Use

EDGE™ Relative Importance of Needs NeedDescriptionImportance SafetyMust be safe1 Follow RegulationsFollow RIT regulations1 Maintain DOF Directions of Freedom of human hand must be shown 1 Robust DesignDesign cannot break3 ScalabilityMust be scalable1 Mechanical OptimizationImprove current system3 Software OptimizationImprove current scheme2 Easy to useShould be easily operated4 1 is high, 5 is low importance

EDGE™ Work Breakdown Structure Project Completion Adding the Thumb Controls Become Familiar with Current Interface Design Software for Thumb Motion Test and Redesign Software Muscles Determine DOF for Human Thumb Determine Number of Muscles Needed Determine Muscle Sizes Needed Investigate Attachment Options Choose Optimal Design Implement Optimal Design Test and Refine Mechanics Determine DOF of Human Thumb Investigate Joint Options Choose Optimal Design Rapid Prototype Implement Design Test and Refine Adding the Pinky Controls Become Familiar with Current Interface Design Software for Pinky Motion Test and Refine Software Muscles Determine DOF for Human Pinky Determine Number of Muscles Needed Determine Muscle Sizes Needed Investigate Attachment Options Choose Optimal Design Implement Optimal Design Test and Refine Mechanics Determine DOF of Human Pinky Investigate Joint Options Choose Optimal Design Rapid Prototype Implement Design Test and Refine Optimization Software Optimization Gain Familiarity with Current Software Generate design solutions Implement Solutions Test and Refine Mechanical Optimization Determine Areas in Need of Revision Generate Design Solutions Implement Design Solutions Test and Refine

EDGE™ House of Quality

EDGE™ Risk Assessment Description/ Consequence ProbabilitySeverity Overall Risk Action Plan Not all DOF in final design MHH Develop plan to improve the design and present it to the customer Not ScalableLHM Find areas that create the problem and redesign FragileMMM Improve materials or design where necessary Unable to get prototype completed on time LMM Reschedule and get teams working on something else Unexpected long lead times MHM Reschedule and get teams working on something else Project goes far over- budget LHL Bring the scope back or redesign

EDGE™ Schedule

EDGE™

Three Week Schedule TeamWeek 1Week 2Week 3 Controls Become familiar with current software Develop design alternatives Begin overhauling current design Thumb Gain familiarity with current design (focus on palm and thumb) Gain familiarity with biomechanics Develop optimization alternatives Choose an optimization design direction Develop new design solutions Choose a new design direction Pinky Gain familiarity with current design (focus on palm and pinky) Gain familiarity with biomechanics Develop optimization alternatives Choose an optimization design direction Develop new design solutions Choose a new design direction

EDGE™ Outstanding Items Add more detail to engineering matrix Make a commercial Make changes based on your comments Update Edge website

EDGE™ Questions?