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Extrusion

Medical Tubing

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Precision thermoplastic extrusion in partnership with Keystone Medical Technologies, Inc. — from single lumen to complex multi-lumen and multi-layer constructions.

Colorful multilumen medical tubing cross-sections

Extrusion Materials

  • PEBAX, nylon & Besno nylon, PET
  • Polyurethane (Pellethane TPU), Tecoflex, Tecothane
  • Hytrel, Kraton (TPE), ChronoPrene
  • Polyethylene (HDPE, MDPE, LDPE & LLDPE) and polyolefins
  • Tungsten-filled, radiopaque, polyblend & custom compounds

Extrusion Processes

  • Single lumen, multi-lumen & profile tubing
  • Co-extrusion (multi-layer) and braid coating
  • Taper (bump) tubing and over-core extrusion
  • Colored and color-striped tubing
  • Cut lengths or spooled

Secondary Operations

Tipping, hole drilling, and marking services complete your component so it arrives ready for assembly.

Sizes & Production

  • Diameters from .010" to .350"
  • Wall thicknesses from .0015" to .075"
  • R&D runs through high-volume production
  • In-house die design and fabrication
  • Balloon tubing and monofilament

Typical Applications

  • Catheter shafts, inner and outer jackets
  • Multi-lumen tubing for steerable and electrophysiology catheters
  • Balloon tubing (parisons) for balloon catheters
  • Radiopaque and tungsten-filled tubing for visibility under fluoroscopy
  • Variable-stiffness shafts using bump (taper) tubing

Quality & Manufacturing

Keystone Medical Technologies extrudes medical tubing in Somerset, Wisconsin, under an ISO 13485:2016 certified quality system. Common grades, including 35D, 55D, 63D and 72D Pebax, Tecoflex, Pellethane, LDPE, polypropylene and Vestamid, are kept in stock to shorten lead times.

What to Send for a Quote

  • Material and durometer, ID, OD and wall (or a drawing)
  • Lumen count and layout, plus any taper, color, stripe or radiopaque filler
  • Estimated annual volume and prototype quantity
  • Target timeline and any validation requirements

A drawing or a rough sketch is fine to start. Send it to Bill and he will route it to the right manufacturer.

FAQ

Frequently Asked Questions

What sizes of medical tubing can be extruded?
Diameters from .010" to .350" with wall thicknesses from .0015" to .075", in single-lumen, multi-lumen and multi-layer constructions.
What materials are available?
Pebax in multiple durometers, nylon, polyurethanes (Pellethane, Tecoflex, Tecothane), Hytrel, Kraton and other TPEs, polyethylene, polypropylene, Vestamid and custom compounds including tungsten-filled and radiopaque grades.
Can you make bump or tapered tubing?
Yes. Taper (bump) tubing and over-core extrusion are available for shafts that change diameter or stiffness along their length.
Do you support prototypes as well as production?
Yes. Keystone runs everything from small R&D lots to high-volume production, with in-house die design to get new sizes started quickly.
Where is the tubing made?
Keystone Medical Technologies in Somerset, Wisconsin, an ISO 13485:2016 certified facility near the Twin Cities.

Ready to Source Your Next Component?

Over 25 years of trusted relationships in the Upper Midwest medical device community.

Talk to Bill