Junkosha used MD&M Midwest in Minneapolis to introduce a new catheter liner category it calls Wrapped Liner, positioning it as a different approach to liner construction.
The company says the platform draws on its fluoropolymer experience and applies proprietary PTFE tape engineering and wrapping technology. Instead of extruding a complete tube, the process wraps PTFE film around a mandrel to form the liner wall.
Construction approach
Junkosha says engineering the tape properties allows it to target a thin, uniform wall with high tensile strength and flexibility. Those characteristics could matter to catheter designers because wall thickness competes for space with braid or coil reinforcement and other elements in the device.
A thinner, stronger liner may allow manufacturers to choose finer braid or coil wire or reallocate space elsewhere in the catheter construction, according to the company. Junkosha is presenting that flexibility as the main design opportunity, rather than thinness alone.
Design trade-offs
Steve Maxson, founder of Maxson InSight Services, said catheter engineers often describe profile as king, but low-profile design involves more than reducing wall thickness. In comments cited in the announcement, he said a catheter still must resist kinking and ovalization while retaining the flexibility its application requires.
Maxson also noted that extruded and film-cast liners are already available with very thin walls. He said the more important question is how thin-wall construction and strength work together to change the way engineers approach catheter design.
Junkosha argues that balancing thinness, strength and uniformity could give designers more freedom in how reinforcement is configured. The company describes Wrapped Liner as a scalable platform intended to support a growing portfolio of liner solutions as catheter requirements change.
For the small-format catheter OEMs Junkosha is targeting, balancing wall thickness and mechanical performance is a central design trade-off. Junkosha's claim is that a wrapped PTFE liner can provide a more favorable balance, but the announcement presents that as a design proposition rather than a verified clinical or commercial outcome.
Market context
Kevin LaDow, chief sales officer of Junkosha USA Inc., said current catheter liners are generally either dip-coated PTFE built up on a mandrel or extruded PTFE supplied as cut-to-length tubing. He said that as the industry heads into 2027, there is a need for a liner category that is manufactured differently and offers distinct benefits for small-format catheter OEMs.
Junkosha is framing the new category around next-generation device development, particularly catheters intended to enhance flexibility and reach a broader range of anatomies. The company has not disclosed independent test data, customer adoption or specific device launches tied to the platform.