RFQ Preparation Checklist
- Required final ID
- PTFE wall thickness limits
- Passed/Failed criteria for lumen patency (pin gauge size)
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PTFE Liner and Mandrel Processing
Core process control for PTFE liners and mandrels to ensure low-friction, defect-free inner lumens for reinforced catheter shafts.
Best Fit For:For quality and manufacturing teams who understand that catheter failure often starts with a collapsed or delaminated inner lumen.
Capability Highlights
- PTFE liner stretching and mandrel fit control
- Etched surface inspection for jacket bonding
- Lumen pass-through verification after thermal reflow
Typical Engagement Scope
- Guidewire compatible shafts
- Stent delivery systems
- Low-friction access catheters
Execution Focus
- Mandrel surface finish and removal pull force
- Etch quality of the PTFE liner
- Wall thickness uniformity under braid/coil compression
Program Evaluation Matrix
| Program Metric | Typical Range | Procurement Value |
|---|---|---|
| Inner Diameter (ID) retention | ±0.001" to ±0.002" depending on size | A loss of ID prevents the clinical device or guidewire from passing through the catheter. |
Risk and Mitigation
- Liner wrinkling: Precise tensioning of the liner over the mandrel before the reinforcement and jacket layers are applied.
Related Products
Buyer FAQ
Do you supply the PTFE liner?
We can source etched PTFE liners from qualified medical extruders, or work with your consigned materials for prototype builds.
Related Resources
Inquiry Email
Include OD/ID, shaft stack, prototype quantity, and delivery location.