mes presentation 2012
TRANSCRIPT
Micro Medical and Pharmaceutical Devices
Presented by:Donna Bibber
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ABOUT MESµ 8 Micro Experienced Project Engineersµ Multiple MICRO material and processing platformsµ 24+ Yrs Micro Mfg/High Speed Assemblyµ 1,000+ Successful Micro Programs
MES SERVICES
Product Development
µ
eurosurgical coil assemblies µ
harmaceutical Infused implantsµ
ydrogel orthopedic implantsµ
ollagen-induced Cardio Implantsµ
.0 cu mm Silicone valvesµ
icrofluidic chips
µ
ransdermal patchesµ
ntraocular Implantsµ
icro Needle Arraysµ
nsulin delivery pump assembly µ
mplantable Batteries µ
ioResorbable Polymer Implants
Micro Assembly Challenges
µ
ltra Precision Positioning µ
arting line/draft alignmentµ
urface finishµ
ptical finish and vision µ
nvironment/Cleanliness
Microfluidic Tooling
µ
nd Mills as small as 0.0001” (3 um)
µ
jector pins as small as .004” (100 um)
µ
avities as small as 0.007”µ
ore pins .0029”µ
ates 0.002”µ
all thicknesses 0.0015”µ
lots and Channels to 0.5 µ (~0.00002’)
Catheter Assemblyµ 50 um Lumen
tip edgeµ 0.5mm lumen
ODµ Multiple core
pins to accommodate .0002” range Lumen sizes
Scaffold Assembly
•PLA Scaffold•0.050” posts•0.003” weld bead
PLA Staple Assembly
µ Snap Fit Designµ Multiple Cavityµ Fully Automatic Loading
µ Custom end of arm toolingµ Multi-axis robotic loading
Filled and SealedSurgical Marker
µ Spin Weldingµ PEEK Vesselµ Vacuum Nestingµ Automatic Fill and
Seal System (syringe)
Micro Features
PLA Anchor
µ 0.0008” tip radiusµ OAL 0.085”µ Side Hole 0.010”µ Using Runner/Sprue as assembly aid
Endoscopy Assembly
µ Multiple machined components
µ Tolerance stack-up study
µ Scale-up to MIM
µ Membrane attachmentµ Designed-in alignment featuresµ 50 um lumens
Drug Well Assembly
Transdermal Needle Array
Glaucoma Drain Suture Assembly
µ 0.010” orifice
µ Parting line critical
µ 0.015” Side action suture holes
µ Radial wedge shape action
Intraocular Lens Assembly
•atched arc lengths
•ritical parting line across 2 components
•ritical registration/positioning of components
Intraocular Vacuum
Assembly
•ritical Parting line directly sitting on cornea
•ide action, pin shutoff
Silicone Micro Structures
µ 84 Million discrete shapes on each chip
µ 100 um Tall, 100 um Wide Shapes
µ 3 um Diameter, 3 um Depth Posts on top
µ Material- Bio-Compatible Silicone
µ Assembly Aid=Repeatable and Quantifiable Surface (tissue grasping and adhesive surface)
Gastric Bypass
Assembly
Neurosurgical Assembly
µ 0.001” wall thickness
µ 0.014” OALµ Vacuum
assist vs. Tweezers
Micro Inspection Capabilities
•aser Scanning Vision Systems
•FM
•ideo CMM
•ouch Probe Systems w/ 3 micron diameter probes
•rofilometer
•nterferometer
•pectrometer
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Micro Assembly Methods
µ
voidance- Geometry Combiningµ
elective Sacrificial Material Melting (silicone, PET)µ
nsert or 2-shot Micro Moldingµ
eldingµ Laserµ Ultrasonic
µ
poxyµ
n Mold Assemblyµ
hemical
Micro Device Assembly
µ
Moldingµ MMµ LIMµ MIMµ CIM
µ
Stampingµ
Machinedµ
Etchedµ
Opticalµ
Bonding
Micro Assembly System
µ
nd. Vac. Nestsµ
sec cycleµ
eat sealµ
ltrasonic weldingµ
nline Psi decay testµ
embrane handling
Injection Molding Simulations, Modeling, Analysis
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Micro Mold Flow Analysis Technology
µ
roprietary Meshing Technique for Micro Partsµ
haracterized and Analyze Resorbs, PC Lenses, Siliconeµ
nsurance Policy for First Shot Quality
Mesh Thickness
Deflection-All Effects
Conclusionµ
eveloping medical and pharmaceutical micro assemblies requires successful integration of many ultra- precision processes/materials
µ
urface finish, feature size and positioning, and extreme critical care environment results in successful micro assemblies
µ
f your micro partner has gone beyond the feature size and tolerance stack-up requirements, you are much less likely to be a science experiment
Thank you.We look forward to working with you.
Micro Engineering Solutions
www.wickedsmall.com