Tantalum and Niobium are bio-compatible materials and have a high resistance to corrosion.  The medical industry uses these materials for implants (e.g. casing components for implantable hearing aids or pacemakers). In addition, Ta and Nb are high in elasticity and are resistant to stress and changes in strains due to corrosive body conditions

PLANSEE USA supplies:

• Components for surgery, such as plates and screws made of Ta or Nb
• Ta - wire for stents