PTFE-Lined Catheters

PTFE-lined catheters provide the outstanding combination of high torque control and stiffness for excellent "push-ability", and excellent lubricity. The substructure helps the catheter resist kinking and allows for pressure resistance.

Reinforced PTFE-lined catheters are available with flat or round wire braid, and/or coiled configurations. Flat wire is generally used for thin walled applications where "anti-kink" performance is critical. Coiled shafts are more flexible and kink resistant, but they do not have the same torque capabilities as a braided shaft.

• Diagnostic catheters
• Guiding catheters
• Suction catheters
• TMR
• Stent delivery systems
• AAA stent delivery systems
• Electrophysiology catheters
• Neuroradiology catheters

• Coiled reinforced tubing
• Braided proximal, coiled distal
• Braided multiple lumen
• Single or multiple durometer segments

• Minimum wall thickness:
  • 0.005" (0.127mm) - braided
  • 0.006" (0.152mm) - coiled
• Braid wire diameters (stainless steel)
• Round wire:
  • 0.001" (0.025mm)
  • 0.0015" (0.038mm)
  • 0.002" (0.051mm)
  • 0.0025" (0.064mm)
  • 0.003" (0.076mm)
• Flat wire:
  • 0.0007" x 0.003" (0.018mm x 0.076mm)
  • 0.0007" x 0.005" (0.018mm x 0.127mm)
  • 0.001" x 0.003" (0.025mm x 0.076mm)
  • 0.0005" x 0.0025" (0.013mm x 0.064mm)

• Liner: PTFE or FEP
• Jacket: Nylon, PEBA, polyurethane, polyethylene, or customer specified engineering polymers

• Barium sulfate (BaSO4)
• Bismuth trioxide (Bi2O3)
• Bismuth subcarbonate (Bi2CO3)
• Tungsten (W)

• Stainless steel
• Nitinol
• Platinum
• Variable pitch
• Flat or round wire
• Embedded radiopaque marker bands

Braid wire density is described as picks per inch (PPI), which is the number of wire crossovers per inch of shaft. Depending upon wire and tube sizes, Teleflex Medical OEM can supply up to 250 PPI.

• Regular Braid Pattern – A common pattern that uses 16 wires in a one under two, over two pattern.
• Diamond Braid Pattern - A pattern that uses 16 wires, but in a two wire under two over two pattern. This pattern tends to provide better torque and more kink resistance than the standard pattern, but the diamond braid has a slightly higher cost.
• Diamond Braid Pattern, Half Load - By utilizing half the number of wires, the diamond pattern can be produced in a one wire under one, over one pattern. This pattern provides more torque than the regular diamond pattern but incurs a much higher cost due to the reduced wire load.