Tie Layer
- Accelerate Your Prototyping
- Fast
- Easy
- Free
Tie Layer is an ultra-thin thermoplastic layer that is applied over a catheter liner during construction. Tie Layer creates a melt-bondable surface that improves jacket-to-liner adhesion during the reflow process, helping to prevent delamination.
Delamination is a challenging failure mode in catheter construction; it carries both risk and cost burden for device manufacturers. Detection typically does not occur until final testing – after catheter assembly is complete – resulting in significant product loss. Delamination can also lead to failures in the field and product recalls.
By creating a stronger bond between the outer catheter jacket and inner liner, Zeus’ Tie Layer solution helps enhance consistency in catheter performance and can ultimately help improve patient safety. Tie Layer is a true total solution in catheter design and manufacturing, helping to reduce inspection requirements, increase product yield, and lower manufacturing costs.
Multiple Options
Tie layers can be used wherever there is a need to bond one surface to another.
Catheter Assembly
Tie layers are a convenient and highly useful option that can be used to enhance bonding of surfaces to the catheter or wire jackets. For catheter components, tie layer options include:
- Tie layer-coated PTFE liners and multi-lumen tubing
- Tie layer-coated FEP liners
- Tie layer-coated polyimide tubing
Tie Layer can also be used to promote adhesion of a coated liner to the ID of a metallic tube. In fact, Tie Layer can be applied to almost any round substrate.
Available Tie Layer Materials Include:
- Pebax® – 35D to 72D durometers
- Vestamid® 75D (Nylons)
Coating thicknesses from 0.0001″ – 0.0003″ (0.0025 mm – 0.0076 mm).
Don’t see what you want? Tell us what you need. Additional materials and durometers are available upon request.
- APPLICATIONS
Catheter Construction – Tie layer coatings can be applied to bondable substrates such as etched PTFE liners to promote adhesion of the subsequent outer jacket materials during the reflow process of catheter construction. Tie Layer increases jacket-to-liner bond strength ranging from 20-40% with minimal to moderate liner stretching.
Metallic Hypotubes – Additionally, tie layer coatings can be used in conjunction with an etched PTFE liner to line the ID of a metallic tube, such as a laser-cut hypotube, to create a very low-friction ID (lumen).
Other – Tie layer coatings can be applied to components that need improved bondability to overlying materials.
- KEY PROPERTIES
Biocompatibility – For medical applications, tie layer coatings use only USP Class VI approved thermoplastic materials.
Heat Weldable – Tie layer coatings easily melt to coincide with any jacket reflow process, creating a strong and heat-welded bond.