SimMan ImprovementsSimMan ImprovementsAdvisors:Advisors:

Dr. Matt Weinger, MDDr. Matt Weinger, MDRay BookerRay Booker

Group Members:Group Members:

Robert Amponsah (EECE)Robert Amponsah (EECE)Bobby Gibbons (BME)Bobby Gibbons (BME)Brandon Miller (BME)Brandon Miller (BME)

Evans Mize (BME)Evans Mize (BME)Daniel Schuler (BME/EECE)Daniel Schuler (BME/EECE)

Project DescriptionProject Description

SimMan Training SimMan Training simulatorsimulator

Mid fidelityMid fidelity Lacks aspects of Lacks aspects of

patient responsepatient response

ImprovementsImprovements

Areas to improve:Areas to improve: Electric stimulation Electric stimulation

and seizureand seizure Central Line Central Line

placementplacement

GoalsGoals

Increased realismIncreased realism Increased capabilityIncreased capability Improved training Improved training

qualityquality Reduced cost vs. Reduced cost vs.

METI implementationMETI implementation

Central Line CostCentral Line Cost

Central line man : Central line man : $16,000$16,000

SimMan: $30,000SimMan: $30,000

METI: $240,000METI: $240,000

Central Line PlacementCentral Line Placement

Two placement Two placement locationslocations

SubclavianSubclavian NeckNeck Converge to Superior Converge to Superior

Vena CavaVena Cava

SimMan DesignSimMan Design

Subclavian and Neck Subclavian and Neck PathsPaths

Exit through pelvis Exit through pelvis and tableand table

Collection Bucket Collection Bucket beneath tablebeneath table

MaterialsMaterials Y-ConnectorY-Connector 5/8” tubing splicer5/8” tubing splicer ¼” latex tubing¼” latex tubing ½” vinyl tubing½” vinyl tubing 5/16” vinyl tubing5/16” vinyl tubing Velcro StripsVelcro Strips High Density FoamHigh Density Foam 3” mending plates3” mending plates Injection portsInjection ports Blood colored fluid for Blood colored fluid for

veins and arteriesveins and arteries Drainage valueDrainage value

Chest Plate ModificationsChest Plate Modifications

Electronics presents Electronics presents so it can NOT leak.so it can NOT leak.

Need proper access Need proper access angleangle

Change tubing in and Change tubing in and out of chest plateout of chest plate

Central Line Current StatusCentral Line Current Status

Final testing and Final testing and assemblyassembly

Tubing installationTubing installation

Electrical Cardioversion ImportanceElectrical Cardioversion Importance

86% that receive cardioversion return to 86% that receive cardioversion return to normal sinus rhythmnormal sinus rhythm

94% that receive medication before the 94% that receive medication before the cardioversion return to normal sinus cardioversion return to normal sinus rhythmrhythm

Normal sinus rhythm required to be judged Normal sinus rhythm required to be judged stable enough for surgerystable enough for surgery

Goals of ElectrocardioversionGoals of Electrocardioversion

Simulate a human’s reaction to electrical Simulate a human’s reaction to electrical cardioversion.cardioversion.

Imitate a Seizure. Imitate a Seizure. Choosing the most economical devicesChoosing the most economical devices Each should present perfect simulationsEach should present perfect simulations Satisfy sponsors with design, Satisfy sponsors with design,

implementation, and final product implementation, and final product

Design for Each SimulationDesign for Each Simulation

Design modified sponsor’s requests and Design modified sponsor’s requests and constraints with tableconstraints with table

Three pistons are setup under SimMan Three pistons are setup under SimMan and embedded in tableand embedded in table

One piston on each shoulder bladeOne piston on each shoulder blade Third piston attached to a lever, pushing Third piston attached to a lever, pushing

up hipsup hips Velcro used to keep piston and SimMan Velcro used to keep piston and SimMan

together together

Parts and PricesParts and Prices

Regulator (1)– given to us by sponsorRegulator (1)– given to us by sponsor Connectors and hoses (many)- $60Connectors and hoses (many)- $60 Manifold (1)-$18.65Manifold (1)-$18.65 Solenoids (3) – 85.20 each – $255.60 totalSolenoids (3) – 85.20 each – $255.60 total Pistons(3) - 117.41 each - $352.23 total Pistons(3) - 117.41 each - $352.23 total Crimps and wiring (many) - $10Crimps and wiring (many) - $10 Overall Total – $696.48 ~ Overall Total – $696.48 ~ $700$700

RegulatorRegulator

Secured on top of Air Secured on top of Air TankTank

Gauges tank pressure Gauges tank pressure and ‘regulates’ output and ‘regulates’ output pressurepressure

Multiple fittings for Multiple fittings for varying line hookups varying line hookups

ManifoldManifold-Intakes regulated pressure from regulator

-Distributes even pressure among three different Lines

-Secures firmly to bed bottom

SolenoidsSolenoids

3/2 setup3/2 setup 24 V and 1.28W impulse 24 V and 1.28W impulse

switches linesswitches lines Punch button switching Punch button switching

mechanismmechanism Reset capabilitiesReset capabilities Works perfectly with pistonWorks perfectly with piston

PistonsPistons

Two valve controlTwo valve control

Works perfectly with Works perfectly with solenoidsolenoid

Pressure range is well Pressure range is well within rangewithin range

RuggedRugged

Problems EncounteredProblems Encountered

Late delivery of Products (March 1Late delivery of Products (March 1stst - -March 25March 25thth))

Obvious Necessity for SolenoidsObvious Necessity for Solenoids Solenoid Activation is unclearSolenoid Activation is unclear Lack of Adequate Workshop toolsLack of Adequate Workshop tools Limitation to Working Hours in Workshop Limitation to Working Hours in Workshop

(10AM-5PM)(10AM-5PM)

Plans to finishPlans to finish

Solenoid switching mechanism – todaySolenoid switching mechanism – today Protoype testing - next weekProtoype testing - next week Optimal Pressure determined – next weekOptimal Pressure determined – next week Impulse speed for Seizure simulation – Impulse speed for Seizure simulation –

two weeks (Mid-April)two weeks (Mid-April)