Etched PTFE catheter liners from Keystone Medical Technologies: filmcast PTFE tubing with in-house etching, built to be the lubricious inner lumen of your catheter.
Filmcast PTFE Liners
Keystone produces filmcast PTFE and polyimide tubing at its Chattanooga, Tennessee facility, with PTFE etching done in-house. Keeping casting and etching under one roof gives consistent thin walls and an etched outer surface that bonds reliably during reflow lamination.
- Filmcast PTFE for thin, uniform walls in small diameters
- In-house etching for a bondable outer surface
- PTFE/polyimide composites for added column strength
- ISO 13485:2016 certified quality system
Typical Applications
- Inner liners for braided and coil-reinforced catheter shafts
- Guide catheters, microcatheters and sheaths
- Delivery systems where devices or guidewires must pass with low friction
Related Capabilities
Keystone also supplies the polyimide tubing and thermoplastic jackets that go over a liner, and Thor Medical Automation builds the vertical reflow laminators used to put them together.
What to Send for a Quote
- Liner ID, wall thickness and length (or a drawing)
- Whether the OD must be etched, and the jacket material it will bond to
- 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.