Laser Machining and Welding Technologies

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Metal Processing Expertise

Seisa provides world class expertise in product design and development and full-scale production of metal components, delivery systems, stents and implants for the medical device industry using laser cutting and processing of Nitinol and specialty alloy-based materials.

Laser Cutting and Metal
Processing Technologies

 

Laser technologies are a core competency of our company. Our laser systems are able to cut the most intricate geometries and tightest tolerance designs.

Precision Laser Cutting

  • Materials: Nitinol, Cobalt Chromium, Stainless Steel, Tantalum, Platinum/Iridium, and other exotic alloys.
  • Material formats: Tube, Strip, Sheet
  • Wall thickness: 0.001 to 0.03 inch
  • Tube diameters range: 0.01 to 1.0 inch
  • Minimum kerf width: down to 0.0004 inch
  • Cut tolerance of +/- 0.0003 inch
  • Efficient laser cut designs optimized for exceptional dimensional
    uniformity and edge quality
  • Precision burr-free laser cutting
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Laser CNC
Welding Technologies

  • Weld characterization
  • Spot welding
  • Spot size down to 0.002”
  • Penetration welding
  • Seam welding
  • Rotational welding
  • Welding of similar/non-similar metals
    • Stainless to stainless, Nitinol to Nitinol, SS to Platinum, Nitinol to Tantalum
  • Component assembly fixturing to hold dimensional tolerances

Shape Setting /
Heat Treatment / Annealing

  • Processing of super-elastic shape-memory Nitinol
  • Devices of variable sizes and complex shapes
  • Optimized devices for mechanical and thermomechanical behavior
  • Rapid heating/cooling cycles and precision temperature control
  • Furnace bath treatments
  • Exceedingly fine grain size structures
  • Af temperature setting
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Wire-Formed
Devices Manufacturing

  • Semi-automated forming
  • Consistent part shape and performance
  • Welded junctions
  • Crimped and swaged junctions
  • Wire formed devices with barbs and swaged marker attachments

Med-Class Surface Finishing

  • Micro blasting
  • Dry and wet honing
  • Mechanical polishing
  • Tumbling
  • Chemical etching
  • Electropolishing
  • Passivation
  • Surface finishing to achieve complete removal of HAZ
  • Uniform material removal and rounding of sharp edges
  • Maximized corrosion resistance and biocompatibility
  • Repeatability and predictability
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Radiopaque Marking

  • Precious metals such as Tantalum and gold swaged into eyelets or attached on struts
  • Strain modeling performed to aid design process
  • Retention force measurements
  • Crimping and bonding available for radiopaque marking

Design and Development Services for
Delivery Systems and Components

Our experienced engineering team is able to design concepts from a basic idea or
a preliminary 3D model into an optimized prototype for manufacturability.

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Design Services for
Interventional Devices

  • Rapid prototyping
  • Finite element analysis
  • Design for manufacturability
  • Verification and validation for clinical/pre-clinical tests
  • Project management
  • Design controls
  • Risk management
  • Experienced development team

Material Selection

  • Material sourcing
  • Nitinol (NiTi)
  • Cobalt Chromium (CoCr)
  • Stainless steel (SS 316L, SS 316VLM…)
  • Specialty Alloys (L605, Phynox, MP35N…)
  • Tantalum, Platinum, Gold
  • Full Incoming Inspection
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Testing Capabilities

  • Dimensional and Functional Testing
  • Delivery System Dimensional and Functional Testing
  • Deployment Testing
  • Packaging Testing
  • Catheter Testing
  • Shelf Life Testing

Metal Manufacturing
Solutions

Rapid Production

  • Quick turnaround order production
  • Flexible manufacturing lot sizes
  • Fast pilot run setting
  • Nitinol and specialty alloy-based component rapid production

Scaled Commercial Production

  • Dedicated manufacturing lines
  • Cleanroom Class 8
  • Cost effective manufacturing
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Specialty
Alloy Solutions

Seisa acquired Burpee Medsystems in the spring of 2019. The strategic acquisition combines design and development of Nitinol and specialty alloy-based devices with Seisa’s scale manufacturing expertise.

Seisa provides end to end product design and contract manufacturing services for the Medical Device industry using laser cutting, laser welding, shape setting, surface finishing and processing of MedTech metal components, sub-assemblies and implants.

With more than 35 years of combined experience, we support our customers throughout the full product life cycle, from rapid turnaround engineering prototyping to commercial scale production.

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Our end to end integrated solutions provide precision processing of Nitinol and MedTech metal alloy components and devices, design and development, design for manufacturability, rapid prototyping, validation for clinical/preclinical testing and competitive scale contract manufacturing.

Our deep engineering expertise in Nitinol and Med Class metal alloys, combined with our laser processing technologies, positions us as a trusted contract manufacturer through the full product life cycle from initial concept to full commercialization.

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