Junkosha
Wrapped PTFE Liner- Catheter Liner
Junkosha® Wrapped PTFE Liner with exceptional strength and ultra-thin wall performance.
Junkosha Etched PTFE Liner is an excellent material for catheter inner layers. Unlike dispersion PTFE liners, Junkosha Etched PTFE Liners are made using tube extrusion technology, resulting in a constant ultra-thin wall thickness and high tensile strength. The consistent quality remains stable within and between lot variation in the catheter assembly process, leading to higher manufacturing yields.
Features
Junkosha Wrapped PTFE Liner is manufactured using advanced proprietary PTFE tape manufacturing and wrapping technologies that differ fundamentally from conventional film-cast, dispersion, and extrusion processes. Liner-level testing demonstrates that compared with our extruded PTFE liners, Junkosha Wrapped PTFE Liner delivers up to five times the tensile stress and twenty times the elastic modulus while maintaining a thinner wall profile. Wrapped PTFE Liner features a sodium-etched surface for excellent bondability and meets USP Class VI* requirements. Backed by patented high-strength technology, our Wrapped PTFE Liner combines exceptional strength, thin-wall performance, and design flexibility to support new possibilities in advanced catheter design and manufacturing. *Test date: July-August 2026
| Liner Size Capability | |||||
|---|---|---|---|---|---|
| Imperial | Metric | ||||
| I.D. (inch) | Wall (inch) | Length (inch) | I.D. (mm) | Wall (µm) | Length (mm) |
| 0.016-0.096 | 0.00075 | 39-78 | 0.40-2.45 | 19 | 1,000-2,000 |
Benefits
Point 01
Greater Catheter Design Freedom
Enlarge the image Pinch to Zoom
During device deployment, conventional liners may stretch, narrowing the inner diameter and increasing friction. The high tensile strength and elastic modulus of Junkosha Wrapped PTFE Liner, enabled by our unique tape manufacturing and wrapping technologies, help minimize elongation and maintain catheter structural integrity. This provides greater design freedom when selecting braid, coil, and outer jacket materials, supporting catheter designs for improved trackability and device delivery.
Point 02
Smaller Profile. Larger Lumen.
Enlarge the image Pinch to Zoom
Catheter designs require a balance between wall thickness, inner diameter, and outer diameter. Wrapped PTFE Liner combines a thin wall with tight wall thickness tolerance, allowing for a smaller outer diameter while maintaining the required inner diameter. Its precise inner diameter control also allows for a larger inner diameter within the same outer diameter, supporting improved access and delivery of larger devices.
Point 03
Reduced Lamination Steps
Wrapped PTFE Liner is supplied on-mandrel, eliminating the lamination process typically required for conventional extruded PTFE liners. In suitable applications, this can reduce production time and manufacturing space while mimizing potential yield loss associated with the additional manufacturing step.
Patented Technologies
This product is protected by issued patents and pending patent applications.
Applications
- Neuro catheter
- Micro catheter
- Balloon catheter
- EP/Abration catheter
Related Products
Junkosha Peelable Heat Shrink Tubing
Junkosha Peelable Heat Shrink Tubing is the industry’s first peelable FEP based Heat Shrink Tubing, and continues to be the benchmark for safety and performance.
