Nitinol Commercialization Center Services & Capabilities

Upcoming Event

BME STAFF CANDIDATE SEMINAR
(Joint Kinematics Staff Candidate)
"Kinematic Insights into PTOA* Pathogenesis and Progression"

Jillian E. Beveridge, Ph.D.
Postdoctoral Fellow
Dept. of Orthopaedic Surgery 
Bioengineering Labs
Warren Alpert Medical School of Brown University/ Rhode Island Hospital
November 8, 2017

BME STAFF CANDIDATE SEMINAR
"Electrical Stimulation for Neurogenic Pelvic Dysfunctions"
Dennis Bourbeau, Ph.D.
Biomedical Engineer, Research, Louis Stokes Cleveland VA Medical Center
Staff Scientist, Dept. of PM&R, MetroHealth Medical Center
Friday, November 10, 2017


The Nitinol Commercialization Center houses the equipment needed to overcome the particular challenges that face Nitinol product designers in all phases of commercialization. Utilizing the new equipment purchased, scientist and engineers pool their talent and resources in a comprehensive, proactive, and focused approach to Nitinol design that should bring new products to market within the next few years. The collaborators in the Nitinol Commercialization Accelerator (NCA) project represent some of the nation’s best expertise in the areas relative to Nitinol product innovation including Case Western Reserve, University of Toledo, NASA Glenn Research Center, Norman Noble, and State of Ohio Wright Project Center.
Heat Treatment

  • Heat Treatment
  • Mandrel design
  • Determining the proper heat treatment parameters to achieve shape and properties
  • Detect and set Nitinol phase transformations
    • Af optimization
    • Fluidized bath heat treatment operating temperatures from +50 to 700°C, with accurate temperature stability ±0.2°C.
    • No heat loss when immersing devices unlike ovens and furnaces where you have to open a door.

Fluidized bath located in the Nitinol laboratory 

Capabilities

Techne Precision Calibration Bath

The Techne FB-08 employs the principle of fluidisation of a mass of finely divided particles to provide a safe, essentially isothermal environment with a high rate of heat transfer. To achieve a state of fluidisation, a gas stream is forced to pass vertically through the bed of fine powder; chromatographic alumina (a specially refined grade of
aluminium oxide). At, and above, a certain critical value of flow rate the particles become separated from each other and the whole mass behaves like a liquid.

Lasercutting Services

  • Athermal Lasercut designs
    • Lasercut designs from tube or flat sheet
      • Tube diameters from 0.3mm up to 10mm
      • Sheet dimensions 12”x 12”
    • Minimal heat affected zone (HAZ)!
    • Straight cuts can be made in a single pass
    • Ultra fine kerf <20 microns
    • Wall thicknesses < 0.7mm
    • 4 axis for intricate geometrie
  • Laser programming for complex geometries
  • Lasercut fixture design for repeatability from part 

Nitinol Laboratory Athermal Lasercutter 

Capabilities

Athermal Lasercutter

The system is suitable for cutting prototypes and stents out of thin-walled tubes with any geometry up to approx. 260 mm length. The tube is held via a pneumatically driven 3 jaw chucks. Programming is normally prepared off line in ‚unwrapped 2D geometry, which is then converted in the software to the cylindrical format. 

Material Processing & Testing

  • Material properties stress-strain behavior
    • Uniaxial tensile testing material
    • Radial and Compressive stent testing
  • Metallurgical analysis
    • Grain Structure
    • SEM

SEM Images of Nitinol Fracture 

Capabilities

SEM Images of Nitinol Fracture

"Shape Memory" means that the alloy can "remember" its shape; after being deformed it returns to its original shape through the application of heat. Material is tested for radial stiffness, pinch compression.