Neurology as relatedNeurology as related

to quality of lifeto quality of lifeMaja Maja MiddletonMiddletonKayla EricsonKayla EricsonKristin Kristin RichingRichingKatherine Katherine DavisDavis

Client : Erwin B. Montgomery Jr. MDAdvisor : Justin Williams

University of Wisconsin - MadisonBiomedical Engineering Design Courses

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All information provided by individuals or Design Project Groups during this orsubsequent presentations is the property of the University and of the researcherspresenting this information. In addition, any information provided herein mayinclude results sponsored by and provided to a member company of theBiomedical Engineering Student Design Consortium (SDC). The above informationmay include intellectual property rights belonging to the University to which theSDC may have license rights.

Anyone to whom this information is disclosed:

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2) Agrees not to use this information for any other purpose unless given writtenapproval in advance by the Project Group, the Client / SDC, and the Advisor.

3) Agrees to keep this information in confidence until the University and therelevant parties listed in Part (2) above have evaluated and secured anyapplicable intellectual property rights in this information.

4) Continued attendance at this presentation constitutes compliance with thisagreement.

Overview of PresentationOverview of PresentationOutline of Problem StatementOutline of Problem StatementBackground Material and Background Material and

ResearchResearchSummary product design Summary product design

specificationspecificationDesign AlternativesDesign AlternativesFuture WorkFuture Work

Problem StatementProblem Statement Design a system or tool to measure Design a system or tool to measure

the quality of life for a patient the quality of life for a patient suffering from movement disorders. suffering from movement disorders.

The system/device must provide The system/device must provide evidence that the quality of life has evidence that the quality of life has improved post surgery so that improved post surgery so that insurance companies will continue to insurance companies will continue to fund deep-brain stimulus fund deep-brain stimulus rehabilitation.rehabilitation.

Definition of Quality of LifeDefinition of Quality of Life Quality of life is a measure of the means Quality of life is a measure of the means

that people live within their own that people live within their own environments in ways that are best for environments in ways that are best for themthem

The ultimate goal of deep brain stimulation The ultimate goal of deep brain stimulation surgery is to enable people to live quality surgery is to enable people to live quality lives -- lives that are both meaningful and lives -- lives that are both meaningful and enjoyed, but are also functional mentally, enjoyed, but are also functional mentally, physically and socially.physically and socially.

Background Material and Background Material and ResearchResearch

Movement Disorder SymptomsMovement Disorder Symptoms RigidityRigidity Postural InstabilityPostural Instability TremorTremor Bradykinesia / akinesia Bradykinesia / akinesia

SlownessSlowness Absence of movementAbsence of movement

DyskinesiaDyskinesia Abnormal, involuntary movementAbnormal, involuntary movement Side effect of drug therapySide effect of drug therapy

No previous devices for objective measure of No previous devices for objective measure of movement disorders found besides written movement disorders found besides written questionnairesquestionnaires..

Main Aspects to our ProblemMain Aspects to our ProblemMentalMental

PhysicalPhysical

SocialSocial

QuestionnaireQuestionnaire Depression TestDepression Test

Reflective Gait Reflective Gait SensorsSensors

SHAPETAPE™SHAPETAPE™ AccelerometerAccelerometer

GPS Full SystemGPS Full System GPS Simplified SystemGPS Simplified System Personal JournalPersonal Journal

Product Design Product Design SpecificationsSpecifications

Performance Performance RequirementsRequirements

Repeated use, all types of patients, non-Repeated use, all types of patients, non-invasive, easy to operateinvasive, easy to operate

SafetySafety Safe for patient and operatorSafe for patient and operatorAccuracy and Accuracy and

ReliabilityReliabilityDependable, durable, precise, fulfill Dependable, durable, precise, fulfill companies requirements for objective companies requirements for objective measuremeasure

Life in ServiceLife in Service 7 days of operation and battery life, record 7 days of operation and battery life, record tri-axial motion, 8 cycles per seconds tri-axial motion, 8 cycles per seconds (accelerometer)(accelerometer)

QuantityQuantity Can be reused, so just a few are neededCan be reused, so just a few are neededTarget Production Target Production

CostCost$100-500 per unit$100-500 per unit

ErgonomicsErgonomics Light, non-invasiveLight, non-invasiveSizeSize Minimal, fitting watch or PDA (GPS)Minimal, fitting watch or PDA (GPS)

WeightWeight Not more than 750 grams (accelerometer)Not more than 750 grams (accelerometer)MaterialsMaterials Hypo-allergenic for all types of patientsHypo-allergenic for all types of patients

Physical AspectPhysical AspectGait Gait

SensorsSensors++full range of motionfull range of motion----requires 3 video camerasrequires 3 video cameras----gathers too much gathers too much

informationinformation----difficult to interpretdifficult to interpret

SHAPETAPE™SHAPETAPE™++easy to use and set upeasy to use and set up++easy data manipulationeasy data manipulation----cost about $4,000cost about $4,000----not quite pliable enoughnot quite pliable enough----can’t gain access for can’t gain access for

preliminary testingpreliminary testing

Physical Aspect ContinuedPhysical Aspect Continued

AcceleromeAccelerometerter

++small /non intrusivesmall /non intrusive ++measures motion in 3D’smeasures motion in 3D’s ++easy to manipulate dataeasy to manipulate data ++good for short range good for short range

motionmotion ----requires data requires data

manipulationmanipulation

Physical Design MatrixPhysical Design MatrixGait Gait

SensorsSensorsSHAPETAPESHAPETAPE

™™AcceleromeAccelerome

terterCostCost 55 11 77

Ease of UseEase of Use 22 99 1010

Weight/SizeWeight/Size 99 88 99

IntrusiveneIntrusivenessss

77 66 88

Data Data StorageStorage

44 44 88

TotalTotal 2727 2828 4242

Social Aspect Social Aspect GPS TrackingGPS Tracking++able to determine where patient’s are able to determine where patient’s are

travelingtraveling++observe long range motionobserve long range motion++could notice increased activitycould notice increased activity++fairly easy to usefairly easy to use++can reuse after each patientcan reuse after each patient----patient needs to remember to have with patient needs to remember to have with

them at all timesthem at all times----somewhat large, could be uncomfortablesomewhat large, could be uncomfortable

Personal Personal JournalJournal

++completely non-completely non-intrusiveintrusive

++can track activities pre can track activities pre and post operationand post operation

----patient could forget to patient could forget to record daily activitiesrecord daily activities

----not completely not completely objective, patient objective, patient could record only on could record only on good or bad daysgood or bad days

Pairing Ideas together for optimal benefit.

Social Design MatrixSocial Design MatrixJournalJournal Full GPS Full GPS

SystemSystemSimplified Simplified

GPS SystemGPS SystemCostCost 1010 55 77

Ease of UseEase of Use 55 1010 88

Weight/SizeWeight/Size 66 77 88

IntrusiveneIntrusivenessss

44 88 88

Data Data storagestorage

33 1010 11

TotalTotal 2828 4040 3232

Final Design and Future Final Design and Future WorkWork

Decide upon final product for Decide upon final product for each aspecteach aspect

Integrate all products for final Integrate all products for final testing methodtesting method

Any Questions?