Jeff Rebmann P10007 May 13 th, 2009 Faculty Guide: Dr. Debartolo Technical Consultant: Ed Hanzlik Mechanical Spine Test Platform

Mission Statement The intent of this project is to design and build a test platform that will mimic the actions of a human spine. This design will incorporate movements in three dimensions, while being able to independently measure the angles and movement. The purpose of developing this platform is to calibrate existing measuring devices in use at the Nazareth Physical Therapy Clinic.

Project Description Project Title: Project Title: Mechanical Spine Test Platform Project Number: Project Number: P10007 Primary Customer Primary Customer Dr. Sara Gombatto Professor at Nazareth College of PT Dr. JJ Mowder-Tinney Director of Clinical Education Nazareth College Department of Physical Therapy Physical therapy patients Secondary Opportunities Secondary Opportunities Further joint modeling University research Physical therapy training

Direct Project Application Nazareth Physical Therapy Clinic motion capture system Allows motion capture of PT patients in order to track progress Calibration for existing machine Focus on spinal segments Secondary Application: Portable Motion Tracking System calibration Source: Source:

Spinal Segmentation Segmented into 4 sections: Thoracic T1 – T12 Upper Lumbar L1 – L3 Lower Lumbar L4 – L5 Fixed Pelvis Adjustable lengthwise to simulate different size spines Source: Source:

House of Quality – Main Body

Engineering Metrics MetricUnitsTarget Provide different sensor applications# of applications≥ 3 Collect angle measurementsDegrees ± degrees Satisfy ergonomic adjustabilityPercentile range5 th percentile Female – 95 th Male StabilityN/AStand on its own Overall weightLbs< 20 lbs Collect linear measurementsInches ± inches

Staffing Requirements (Optimal) NameDiscipline#Description Dr. Elizabeth DeBartolo Mechanical Engineering Faculty Guide Dr. Matt Marshall Industrial Engineering Faculty Consultant Ed Hanzlik Mechanical Engineering Technical Assistant Jeff Rebmann Industrial Engineering 1 Project Manager Planning, executing leading team toward success Point of contact for team and customer TBD Industrial Engineering 1 Ergonomics and biomechanics Testing process optimization Component design, fabrication, and testing TBD Mechanical Engineering 2 CAD drawings/design Component fabrication/machining Testing TBD Electrical Engineering 1 Integrate electrical measuring devices User feedback mechanism Testing

Preliminary Work Breakdown Discipline# Week 0 -1 Week 1 – 2 Week 2 – 3 Industrial Engineering 1 Agree upon team values and norms, also a weekly meeting time Develop IE related problems/issues that may arise Begin ergonomic research Use Dr. Marshall as a guide/consultant Solidify ergonomic measurement constraints in all three planes of motion Mechanical Engineering 2 Agree upon team values and norms, also a weekly meeting time Identify challenges mechanically that may arise during the course of the project Analyze existing mechanical joints/devices Benchmark further than QFD Brainstorm mechanical design using simple CAD images Electrical Engineering 1 Agree upon team values and norms, also a weekly meeting time Develop EE related problems/issues that may arise Begin researching existing electrical measuring technologies available for use Benchmark against existing MSD projects with similar devices Work with ME's in order to develop simple first iteration design implementing aggregate level electrical components GOALS Team introduction Project understanding Establish weekly meeting times Research background information Benchmark against similar projects (more than PRP) Begin to formulate ideas for possible design solutions for the needs of the customer

Team Values and Norms Punctual Each team member will be prompt and arrive at the team meetings on time. If an unexpected conflict comes up, the absent team member will notify at least one team-mate prior to the expected absence. An absent team-member should confirm that a team-mate has received their message (in person, voice mail, , etc). Thorough Each team member will complete their tasks thoroughly and completely, so that the work does not have to be re-done by a peer on the team. If a member does not know how to complete a task, feels overwhelmed, or needs assistance then the member notifies peers, and seeks assistance either from a peer, the faculty guide, a faculty consultant, or another person. Accurate Each team member completes their work accurately and in a way that can be easily checked for accuracy by peers and the faculty guide. All work is fully documented and easy to follow. Professional and Ethical Each team member gives credit where credit is due. All work completed includes citations to appropriate literature, or sources of assistance. If a team member has gotten assistance from a publication or individual, then that assistance or guidance is fully documented in the reports prepared. Each team member is honest and trustworthy in their dealings with their peers. Demonstrates the core RIT values of SPIRIT. Committed Each team member will contribute an equal share to the success of the project.

Resources Faculty Faculty Facilities Facilities NameDescriptionAvailable Dr. Elizabeth DeBartoloFaculty GuideYes Dr. Sara Gombatto (Nazareth PT Clinic)CustomerYes Ed HanzlikTechnical AssistantYes Dr. Matt MarshallFaculty ConsultantYes ItemSourceDescriptionAvailable Brinkman LabIndustrial Engineering Computerized and non-computerized milling, lathe, and cutting operations Yes Ergonomic Development Lab Industrial Engineering Research for biomechanics and ergonomic data Yes Senior Design SpaceMSD Staff Workspace needed for meetings and storage of parts Need to contact ME Comp LabMechanical Engineering CAD software Yes

Resources (cont.) Equipment Equipment Funding Funding National Science Foundation Grant Dr. DeBartolo grant sources ItemSourceDescriptionAvailable ComputersMSD staff, or any computer lab Analytical workYes Brinkman Lab Equipment Brinkman Lab – John BonzoComponent fabricationYes SolidWorks Seat License Mechanical Engineering Dept. CAD developmentYes

Risk Assessment RiskPossible OutcomeProbabilitySeverity Overall Risk Contingency Response Team issues Lack of productivity and hostility between members LHM Try to identify issue before they become too large of an issue Extended team member absence Overload of other group members, stress and poor quality work LHM Plan for contingent member to work on task Lack of expertiseQuality of work is lackingLHM Work with guides to close the knowledge gap Supplier is late on shipment Sets the work schedule back, or halts entirely HMM Plan tasks in parallel when applicable to shift workload Device will not be adjustable enough for largest range Could not test the limits of the motion capture equipment at Nazareth LHH Test through the range available and possibly build larger/smaller scale models Device will not lock into position desired The desired measurements could not be read LML May change to dynamic motion measurements, or test at position more suitable The device will be too heavy It cannot be easily moved to other measuring applications LML Remove materials if applicable, choose different materials

Assistive Devices Roadmap Relevance Enabling Technology: Enabling Technology: Process for developing mechanical joints Applicable to many other human joints 3rd Year Project Opportunity: 3rd Year Project Opportunity: Develop an analog device that will measure flexion and extension in a elbow joint 1 st Year Project Opportunity: 1 st Year Project Opportunity: Design 5 tasks that will test the limits of the device. Winning team may get to go visit Nazareth PT lab and use motion capture device

Factors of Success Independently measure the angle deviations of each spine segment Adjust the test platform in order to accommodate ergonomic data Make the system work with motion capture system at Nazareth (minimum); more than just the motion capture system at Nazareth (maximum)

Intellectual Property Considerations All work to be completed by students in this track is expected to be released to the public domain. Students, Faculty, Staff, and other participants in the project will be expected to release rights to their designs, documents, drawings, etc., to the public domain, so that others may freely build upon the results and findings without constraint. Students, Faculty, and Staff associated with the project are encouraged to publish findings, data, and results openly.

Outstanding Items Benchmarking Currently have two sources Instrumented trunk with precision electrogoniometer P09029: Robotic Hand Improvement Need more MSD team may be able to provide more insight

Questions?