College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

1

Opportunities for Revolutionary Haptics-Based Veterinary Dental Trainers

William Durfee

Department of Mechanical Engineering

University of Minnesota

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

2

Agenda

• New Product Design and Business Development Program

• Haptic technology and simulators

• Opportunities for moving the bar in high-fidelity, VR veterinary dental training

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

3

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

4

Institute of Technology

• 12 departments, 24 research centers

• ChemE #1 in U.S., MechE #8 (Nat'l Rsrch Council)

• Engineering, physical sciences, mathematics

• 5,000 students, 10 degree programs, 107 faculty

• State-of-the-art building (2008)

• Enterprises: nation's largest portfolio of student-led, professional run businesses

Carlson School of Management

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

5

NEW PRODUCT DESIGN AND BUSINESS DEVELOPMENT

Business and engineering students join with industry to develop new products

www.npdbd.umn.edu

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

6

The 2008-2009 Hill's NPDBD TeamVISWESH BHATVISWESH BHAT

MHAMHA

TIM MCDEVITTTIM MCDEVITTMBAMBA

ALEX KOSSETTALEX KOSSETTMSMEMSME

REECE PETERSONREECE PETERSONMSMEMSME

ARAVIND SRIVATSAARAVIND SRIVATSAMSMEMSME

DANE STIMARTDANE STIMARTMSMEMSME

WILL DURFEEWILL DURFEEMECHEMECHE

JUDITH BUCHANANJUDITH BUCHANANDENTISTRYDENTISTRY

GARY GOLDSTEINGARY GOLDSTEINVETERINARYVETERINARY

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

7

What• Graduate level course offered by CSOM, ME,

BME• Work with client firms to design a new product

and create a business plan• Teams of 4-8 grad students (1/2 business, 1/2

engineering) + faculty + marketing and engineering company reps

• Nine months (Sept - June)• Deliverables: Working prototype, comprehensive

business plan

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

8

Features• Real projects

– Companies commit to manufacture

• Cross-functional teams

– Engineers do marketing and vice-versa

• IP rights negotiated before project start

• All team members sign confidentiality agreements

• Strong university/company collaboration

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

PROJECTS

• Careful selection• Known area, but not completely defined• Business challenges• Engineering challenges• Typically mechanical, electromechanical• Many medical products• 6 projects/year, 6 students/project

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

10

The 3 F’s of New Product Development

• Market feasibility

• Technical feasibility

• Financial feasibility

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

ACTIVITIES• Project Analysis (SWOT, PIC)• Market research, VOC, depth interviews, focus

groups, ...• Patent searching, patent application• Attend trade show• Financial analysis and projections• Technology forecasting, strategic planning• Brand imaging, brand development• Engineering and production• Product launch planning• Exit strategy and buyouts

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

13

Projects (1995-2008)3M, Home and Commercial Care (1995), 2nd generation Twist ‘N Fill containerToro, Consumer Division (1995), Powered, hand-held gardening toolMicro-Medical Devices, Cleveland OH (1995, 1996), Endoscope technologyReel Precision Manufacturing (1996), New market hinge productHorton Manufacturing (1996), Smart cluth/brakeIrwin Publishing (1996), CD-ROM textbook supplementDonaldson (1997), Engine noise control productMolecular Diagnostics Lab, UMN (1997), Blood collection systemAetrium, Inc. (1997), Motion platform for Integrated circuit testing machineSpinal Designs International (1997), Low-back pain care for people in wheelchairsAugustine Medical (1997), Skin care productHorton Manufacturing (1997), Web control productSoil Sensors (1998), Next-generation soil moisture sensorHoneywell, Home & Building Control (1998), Residential ventilation systemSelect Comfort (1998), Improved-comfort sleet systemSulzer Medica, Winterthur Switzerland (1998), Hip surgery instrument3M, Stationery and Office Supply (1998), Improved Post-it Flag dispensersAugustine Medical (1998), Nursing home market for Augustine technologyMedtronic (1999), Catheter productEnhanced Mobility Technology (1999), Biorehab productLincages (1999), Windows version of CAD mechanism softwareShepherd Medical (1999), Male contraceptivesRust Architects (1999), Ice-palace coolerSulzer Medica (1999), Arthoscopy productSpineTech (2000), Artificial disk productEnduraTEC (2000), Tissue test gripsScimed (2000), Smart catheter productMedtronic (2000), Visible Heart CD-ROMMachine Magic (2000), Key duplicating machineAndersen Windows (2001) Novel window technologyHormel Foods (2001) Food safety sensorIntrospective (2001) Medical catheterGeodigm (2001) Dental scannerMedtronic (2001) Electrode impedance monitorVivaCare (2001) Emergency call system3M (2002) Multifunction electrodeNewco (2002) EEG biofeedbackComedicus (2002) Imaging in the pericardial spaceHearing Components (2002) Soundproof headphones

Pando (2003) New sports field technologyMedtronic (2003) Visible Heart technologyScimed (2003) New catheter product3M (2003) Smart electrode productProbus (2003) Timers and nightlights3M (2003) Wound care product3M (2004) DVT preventionArctic Cat (2004) Snowmobile accessoryIMI Vision (2004) Food dispense machinePneumedics (2004) Device for controlling surgical bleedingUnisys (2004) Security applicationVenturix (2004) Ablation catheterMedtronic (2005) Pacing lead accessory productIMI (2005) Pneumatics productTennant (2005) Cleaning productDevicix (2005) Device for spine surgeryStarFire Medical (2005) Device for aneurysms Pando Technologies (2005) Sports training productMedtronic (2006) Lead implant toolSt. Jude (2006) Catheterization toolTennant (2006) Cleaning machinePando Technologies (2006) Fitness monitorBMEI (2006) Blood identificationSoftscope (2006) Colonscope accessoryMedtronic (2007) Cardiac surgery productNesos (2007) Osteoarthritis productRivaTek (2007) Pressure sensorAeromix (2007) Aeration mixerSt Jude (2007) Cardiac surgery productPando Technologies (2007) Remote controlled flying machineMedtronic (2008) Lead accessoryLake Region Medical (2008) Cranial catheter productTSI (2008) Imaging productGraco (2008) Paint mixingPando (2008) Dental caries detectorAugustine Biomedical (2008) Fluid warming product

75 products, 52 companies

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

3M (1997-1998)

• Post-it Flag group

• Innovative product to increase Flag sales

• 200 preliminary concepts, 40 prototypes, 4 detailed prototypes

• 3M took one to placement study then to manufacture

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

17

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

21

The 2008-2009 Hill's NPDBD TeamVISWESH BHATVISWESH BHAT

MHAMHA

TIM MCDEVITTTIM MCDEVITTMBAMBA

ALEX KOSSETTALEX KOSSETTMSMEMSME

REECE PETERSONREECE PETERSONMSMEMSME

ARAVIND SRIVATSAARAVIND SRIVATSAMSMEMSME

DANE STIMARTDANE STIMARTMSMEMSME

WILL DURFEEWILL DURFEEMECHEMECHE

JUDITH BUCHANANJUDITH BUCHANANDENTISTRYDENTISTRY

GARY GOLDSTEINGARY GOLDSTEINVETERINARYVETERINARY

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

22

Hill's NPDBD Project Mission

Team Hill's will implement an affordable, veterinary dental training simulator that uses haptic interface technology, ergonomic design features, and instantaneous computer assisted feedback, to be used in veterinary schools and pet hospitals throughout the world.

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

23

Project Deliverables

• Market analysis– Viability & potential

• Business model

• Virtual-reality haptic simulator– Preliminary version

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

24

SWOT AnalysisSWOT Analysis

• Strength– Technical expertise– Fast prototyping

• Weakness– Learning curve

Helpful HarmfulExternal

Intern

al

Threat Existing

simulator companies

Opportunity Replaces

cadaver heads Portable No tooth

replacement costs

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

25

Existing SolutionsExisting Solutions

• Conventional Methods– Cadaver Heads

• Pros– Closest to Live Animal

• Cons– People For Ethical Treatment

of Animals (PETA)

– Unpleasant Smell

– Hazardous Waste

– Dwindling Supply

– Single Use

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

26

Existing SolutionsExisting Solutions

• Conventional Methods–Dentoforms

• Pros– Semi-Realistic– Readily Available

• Cons– Replacement teeth are Costly– No immediate feedback

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

27

Manikin-Based Human Dental SimulatorsManikin-Based Human Dental Simulators

Dentsim by Denx Ltd.– Pros

• Body Positioning Feedback• Instant Performance Feedback• Playback Capability• Reproducibility/ Updateability

– Cons• High Tooth Replacement Cost• High Up-Front Cost

Haptics: Recreating Touch

Image gallery from: haptic.mech.northwestern.edu

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

29

Haptic-Based Human Dental Simulators

• Pros– No tooth replacement costs– Portable– Immediate feedback– Easy to upgrade

• Cons– Fidelity– Ergonomics– Initial development cost

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

30

Human Haptic Dental Simulator ExamplesHuman Haptic Dental Simulator Examples

• Iowa Dental Surgical System (IDSS)– Joystick force feedback

– Sensations of drilling enamel, healthy dentin, carious dentin

– focus on tactile skills

• Virtual Reality Dental Training System (VRDTS)– NOVINT and Harvard School of Dental

Medicine

– VR Image of Different Decay Conditions

– Real Time Tracking and Quantifiable Feedback

VRDTS

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

31

• PerioSim– University of Illinois, Chicago

– Manipulate 3-D mouth with real dental tools

– Practice procedures with option for playback

• Interactive Haptic Plaque Removal Simulator– King Mongkut’s Institute of

Technology Bangkok, Thailand

– VR model of tooth, gums, plaque

– Force feedback while removing plaque

Human Haptic Dental Simulator ExamplesHuman Haptic Dental Simulator Examples

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

32

• Simodont– Moog-FCS– First prototype, June

2008– Simulated cutting with

3D bur

Human Haptic Dental Simulator ExamplesHuman Haptic Dental Simulator Examples

Virtual Reality Systems

Sensorama (M. Heilig, 1960’s)

Medical Procedure Simulators

Immersion CathLab VR Immersion Lap VR

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

37

UMN SimPORTAL

Presence“compels a feeling of being present in the computer-generated environment”

Reality

“user cannot discriminate between real and artificial environments”

Sheridan, Telerobotics, Automation, and Human Supervisory Control (1992)

Training

Multimodal Sensing

SIGHT

SOUND

TOUCH

smellPresence

CNS Sensory fusion

temp

VR Multi-Sensory Experiments

• Compare virtual to real materials• Sight/sound/touch• With and without sensory conflict

subject

motorgreen screen

probereference materials

speakers

camera

to SGI

test material

Universal Knob VR System Architecture

VISUAL PC

HAPTIC PC

AURAL PC

SERVO-AMP

MOTOR

Visual C++ [Graphics scene, Chromakey, UDP communication]

HUMAN

TV

VIDEO CARD

SPEAKERS

MATLAB

KNOB

UDP/IPUDP/IP

xPC TARGET

CAMERA

network

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

43

NPDBD Dental Simulator

College of Veterinary Medicine, School of Dentistry, Institute of Technology, Carlson School of Management

44

The University of Minnesota Hills-Colgate Veterinary Dental Center for Simulation Innovation

HAPTIC-BASED VET-DENTAL SIMULATORS

• Demo prototype using off-the-shelf technology

• Business plan

• Haptic technology research

• Next generation haptic trainer plus curriculum

• Ready for hand-off to commercialization

May 2009 Deliverables Dec 2011 Deliverables (if funded)