VESTAKEEP® i4 R is a rod stock based on implantable grade neat polyether ether ketone resin VESTAKEEP® i4 G.
The extra high purity and extended quality measures make VESTAKEEP® i-grade materials an excellent choice for permanent implants.
The biocompatibility of VESTAKEEP® i4 R has been tested following ISO 10993-1 recommendations for permanent tissue/bone contact and USP Class VI.
VESTAKEEP® i4 R complies to ASTM F2026 “Standard Specification for Polyetheretherketone (PEEK) Polymers for Surgical Implant Applications”.
A summary of biocompatibility test results is available upon request.
Typical Applications
- spinal cages
- interference screws
- facial implants for facial bone fractures
- stents
- suture anchors
- access ports
- heart valves
- small joints
Benefits at a glance
- Biocompatibility
- Biostability
- Sterilization compatible
- Modulus similar to bone
- Wear comfort due to light weight and low thermal conductivity
- Lower stress-shielding effect
- No x-ray artifacts and/or adjustable opacity
- Metal-free
- Low water absorption
- Resistant to chemicals Injection molding and extrusion compatible
- Good processability and machinability