Following the placement of the liner over the mandrel during catheter shaft construction is the braiding. Braiding provides strengthening and mechanical reinforcement to the catheter. While most catheters are produced with metal braiding, advances in polymer technology have led to the development of improved monofilament and fiber braidings.
Liquid Crystal Polymer (LCP) Monofilament
LCP has significant advantages for catheter construction and as a monofilament, out-performs almost all other plastic or polymer braiding media. LCP is strong and rivals even stainless steel in some areas. Because LCP is a non-metal, however, catheters made with LCP braiding are compatible with magnetic resonance imaging (MRI) – a highly preferred trait.
- High Strength
- Class VI Approved
- Low Elongation
Catheters made with LCP show excellent torque transmission, pushability, and distal end deflectability. LCP is available in both round and rectangular profiles.
LCP MONOFILAMENT vs. STAINLESS STEEL
|Material||Zeus LCP Monofilament||304 Stainless Steel (annealed)||Stainless Steel (spring tempered)|
|Dimension (in./mm.)||0.003 / 0.076||0.003 / 0.076||0.003 / 0.076|
|Average Tensile Strength (Gpa)||1.20||1.00||2.30|
|Average Elongation at Break (%)||1.7||31.1||1.7|
|Average Tensile Modulus (Gpa)||75.0||134.5||202.7|
LCP can be wound onto Steeger and Wardwell bobbins and onto DIN 160 spools. If you are using a Steeger carrier, ask about Steeger’s maintenance program to help you maintain consistent PPI, braid angle, and increase productivity.
Other Braiding Materials
While LCP for catheter braiding is our flagship monofilament, we also offer other non-metallic braiding materials that you may find helpful including: