Etched Ultra Thin Wall PTFE Liner Catheter
Medical grade etched PTFE liner tubing designed for minimally invasive catheter applications.
Our ultra-thin wall PTFE liner tubes are manufactured from high-purity PTFE materials with precise extrusion and surface etching processes.
The inner surface is specially treated to improve bonding strength with outer catheter layers, helping reduce liner movement during assembly and use.
With excellent chemical resistance, low friction and stable dimensional control, these PTFE liners are widely used in microcatheters, endoscopic devices and other minimally invasive medical instruments.
Product Features
Controlled Surface Etching
The PTFE inner surface is treated through controlled etching to improve bonding with surrounding catheter materials.
Thin Wall & Precise Dimension Control
Manufactured with precision extrusion technology, the liner maintains consistent wall thickness and diameter control for catheter assembly.
Medical Grade PTFE Material
Made from high-purity PTFE resin with excellent chemical resistance and temperature stability for medical device applications.
Manufacturing Process
PTFE Resin Selection
Medical grade PTFE resin is selected according to required tubing performance.
Precision Extrusion
Advanced extrusion process ensures uniform tube dimensions and smooth inner surface.
Surface Etching Treatment
Controlled etching treatment improves surface bonding performance.
Inspection & Packaging
Each batch is inspected for dimensions, appearance and surface quality before shipment.
Advantages
Improved Bonding Performance: Etched surface treatment improves the bonding strength between PTFE liner and outer catheter materials, reducing the risk of liner displacement during assembly.
Supports Smaller Catheter Designs: Ultra-thin wall construction helps manufacturers achieve smaller catheter profiles while maintaining PTFE's low-friction performance.
Smooth Guidewire & Fluid Movement: The natural low friction property of PTFE helps provide smooth movement of guidewires, fluids and medical devices inside the catheter.
Stable Performance After Sterilization: PTFE maintains stable mechanical and chemical properties under common sterilization processes such as EO and steam sterilization.
Why Choose Etched PTFE Liner?
Better Bonding With Outer Layers
PTFE has excellent chemical resistance and low friction, but its surface is naturally difficult to bond.
The etching process creates a modified surface structure, improving adhesion between PTFE liner and outer catheter materials.
Ultra Thin Wall Design
The thin-wall structure helps maintain a small catheter outer diameter while providing a smooth inner channel.
This is important for minimally invasive devices requiring precise navigation.
Smooth Inner Surface
PTFE provides a low-friction pathway for guidewires, fluids and medical devices, helping improve insertion performance.
Applications
Microcatheter Liner
Used as an inner liner component for neurovascular and cardiovascular microcatheters, helping provide a smooth inner pathway for guidewire delivery.
Endoscopic Intervention Devices
Applied in endoscopic instruments such as ERCP-related devices and other minimally invasive delivery systems requiring low friction performance.
Balloon Catheter Components
Used as PTFE liner material in balloon catheter designs where chemical resistance and smooth movement are required
FAQ
Q: What is an etched PTFE liner tube?
A: An etched PTFE liner tube is a PTFE tubing with surface treatment to improve bonding with other catheter materials.
Q: Why does PTFE liner need etching?
A: Because untreated PTFE has very low surface energy and is difficult to bond. Etching improves adhesion during catheter assembly.
Q: What catheter applications use PTFE liners?
A: PTFE liners are commonly used in microcatheters, balloon catheters, endoscopic devices and drug delivery systems.
Q: What wall thickness can you manufacture?
A: We can achieve a minimum wall thickness of 0.03 mm.
Q: Can you provide customized PTFE liner tubing?
A: Yes. We support customized dimensions, tolerances, colors and packaging according to customer drawings.
Properties
|
|
PTFE |
|
Length Change |
±12% |
|
Working Temperature |
-60℃to 260℃ |
|
Chemical Resistance |
Excellent |
|
Flammability |
UL 94 VO |
|
Shelf Life |
Infinite |
|
Water Absorption |
＞0.01% |
|
Hardness |
D60 |
|
UV Resistance |
Unaffected |
|
Ozone Resistance |
Unaffected |
|
Sterilization |
EtO, Steam |
|
Food graed materials |
Available |
