Newsroom: Confluent Announces Significant Investment in ATI Nitinol Melt Expansion

Balloon Catheters

Our balloon catheter manufacturing capabilities span an extensive range of expertise from balloon expandable stents, balloon extrusion, balloon design and balloon forming, to testing and inspection. We have a substantial balloon manufacturing capacity with clean room facilities, plus an array of state-of-the-art balloon forming equipment. Our highly skilled balloon design, development and manufacturing engineers, quality engineers, and trained operators ensure the highest balloon quality and optimized production.

Balloon Catheter Capabilities

With over 25 years of experience, we provide you with a wide range of resources and facilities for prototype and development throughout your product development cycle — up to and including custom balloon catheter prototypes — in just a matter of weeks.

  • Materials: balloon/catheter tubing and tri-layer extrusion
  • Parison stretching and die necking
  • Balloons: tapered, stepped, nonsymmetrical, Ø0 to 50 mm, and lengths up to 32 cm
  • Fluting/wrapping/sheathing
  • Marker band swaging
  • Pad printing
  • Balloon expandable stent placement
  • Tube welding
  • Tips: tapered to unique tip geometries
  • On-site machining (molds, water jackets, etc.)
  • Braiding, coiling, and laminating
  • Testing (destructive and non-destructive)
  • High-pressure balloons
  • Stent crimping and pillowing
  • Laser processing: hole drilling, ablation, surface texturing

Custom Balloon Catheters

Partner with us for a complete solution to your custom catheter needs, from quick turn-around prototypes to high-volume production.

  • Custom balloon mold blowing
  • Custom catheter shaft configurations with multiple shaft durometers and stiffness (liner/jacket material, braid/coil pattern, etc.)
  • Ability to meet a variety of requirements: wall thickness, kink resistance, burst pressure, torque ability, push ability, flexibility, trackability, and radiopacity
  • Able to hold tight ID and OD tolerances
  • Catheters can include rapid exchange ports, marker bands, and atraumatic tip

Custom Medical Extrusion

Our dedicated extrusion team specializes in custom medical extrusions and can help you develop complex configurations that meet unique restrictions and specifications.

  • Balloon tubing
  • Single-lumen tubing
  • Multi-lumen tubing
  • Striping co-extrusion
  • Tri-layer
  • Bump tubing
  • Lead tubing
  • Custom welding sleeves

Reinforced Catheter Shaft

When considering the initial performance of reinforced catheter shafts, the materials and shaft designs are crucial. Our engineers specialize in identifying the best materials and shaft designs to ensure all design requirements meet the end needs of both the user and finished medical device.


  • Liner:
    • PTFE
    • Polyimide
    • Pebax
    • Nylon
  • Braid/Coil:
    • Flat stainless steel wire
    • Round stainless steel wire
    • Nitinol wire
    • Platinum wire
    • Tungsten wire
    • Non-metallic wire (plastic, textiles)
  • Jacket:
    • Polyurethane
    • Pebax
    • Nylon

Design Options:

  • Coil:
    • Clockwise pitch
    • Counter-clockwise pitch
    • Varying pitch in single shaft
  • Braid:
    • Regular braid pattern (one wire under two wires
    • Full diamond pattern (two wires under two wires)
    • Half diamond pattern (one wire under one wire)
    • Tri-axial wires
    • Varying PPI in single shaft

Partnering with you every step of the way

Contact Confluent Medical today and make sure your project is supported by our unmatched resources, technical expertise and proven service to meet any design, modification or manufacturing requirements.