Green Medical Tube
Mikaela CooseMatt DowellCecily Fico
PROBLEM ORIGINATION
Dog suffers from severe Dry Eye Syndrome (DES)Expensive
Cyclosporine Treatment Tube of 3.5 grams costs $40.00
Patients find it increasingly difficult to utilize the full
value of expensive salve medicine due to the current structure of
medical tubes.
Design and Develop an innovative medical tube that allows
patients to more adequately utilize the full value of costly salve
medicine.PROBLEM STATEMENT
PRODUCT RESEARCH
Current Solutions:Cut Existing Tube Safety /
ContaminationAccordion Tube Inaccuracy / Lose salve in multiple
creasesExternal Tube Squeezer Inaccuracy/ Internal waste
IDEA #1 CUBE TUBE
BRAINSTORMING
IDEA #3 CONE PLUNGER TUBE
IDEA #4 REUSABLE TUBEIDEA #2 FLAT PLUNGER TUBE
DECISION MATRIX CRITERIA | IDEA#1#2#3#4AESTHETICS
1-52343ERGONOMICS 1-52442MANUFACTURING 1-54332EFFICIENCY 1-5
2351MARKETABILITY 1-51352TOTAL 5-2511162110
IDEA #1 CUBE TUBE11
IDEA #2 FLAT PLUNGER TUBE16
IDEA #4 REUSABLE TUBE10
IDEA #3 CONE PLUNGER TUBE21
Advantages vs. Current Medical TubesPlunger that drives salve
out nozzle w/easeSafety Seal ensures zero leakage Ecofriendly -
Recyclable plasticAccuracy Dispense markingsEconomical More
efficient = Less waste = $$$Beneficial for the following
individuals:Elderly or Individuals w/ArthritisHandicap/Disabled
(Limited Motor Skills)Anyone Looking to Save MoneyMARKETABILITY
ABS PlasticInexpensive for early prototypes
VeroWhite Polyjet PlasticMore flexible
Medical Plastic - High Density PolyethyleneMolding capability
MATERIALS
ABSVeroWhite
Leiters Compounding Pharmacy Charles Leiter, Pharm.D.Design
Elements
Gateway Technical College - Greg ChapmanManufacturing /
Sponsor
Molitors Pet & Bird Clinic Dr. Phil MolitorCritical
Analysis
Burlington Pharmacy Station Karen MacKinnon, RPhApplication
BUSINESS & INDUSTRY
EquationsVolume = hr + hr3 = 0.967 in = 15.85 ccVolume Flow Rate
= A = A = 0.0601 in/s = 3.985 cc/s Dispensation per 60 = 0.020 in =
0.328 cc
CALCULATIONS
3-D MODELINGCAPTWISTER RODO-RINGBODYPLUNGER
3-D MODELING CLIP
FINITE ELEMENT ANALYSIS
CAPTWISTER RODO-RINGBODYPLUNGERSTOPPER
COST ANALYSISITEMQTYVOLUME VENDORCOSTBODY11.392
inSTRATASYS$18.84TWISTER ROD10.604 inSTRATASYS$8.18PLUNGER10.709
inSTRATASYS$9.60CAP10.176 inSTRATASYS$2.383/16 O-RING10.017
inMENARDS$0.59SUPPORT MATERIALN/A10.130
inSTRATASYS$20.75TOTAL$60.34
MASS PRODUCTION COST ANALYSIS825,000 cycles per injection mold
(1 mold = 1 ecoTUBE)$18,000 to make molds$0.16 per lb. (HDPE) ;
0.11 lb. per ecoTUBETOTAL COST = $0.04 per ecoTUBE
MANUFACTURING PROCESS
UPLOAD PART FILES TO 3-D PRINTER SOFTWARE
PRINT ON 3-D PRINTER (AFINIA / OBJET24)
REMOVE EXCESS SUPPORT MATERIAL
REFININGO-RING TO SEAL TUBE AND PREVENT LEAKAGEREMOVED THREADS
ABOVE PLUNGER TO PREVENT LEAKAGETHINNER SIDE WALLS TO REDUCE
MATERIAL WASTENEW CLIPS TO LATCH TWISTER ROD INTO TUBENEW CAP
W/HALF THREAD TURN DESIGN FOR EASE OF USEDIAL MARKINGS TO INDICATE
QUANTITY DISPENSED
Compounded Control Salve70% Petroleum Jelly, 30% Mineral Oil
Insert Twister Rod into Body
Twist dial clockwise to dispenseFINAL PROTYPE TESTING
Through this engineering project we have learned and experienced
the finer details of the challenging design process, including
prototype modeling and product manufacturing.
We believe our final user-friendly ecoTUBE allows patients to
more adequately utilize the full value of salve medicine.
CONCLUSION
