Benefit from its high strength, low weight and outstanding corrosion resistance, titanium and titanium alloys have led to a wide and diversified range of successful applications.
Titanium and titanium alloy in surgery and medicine demand higher levels of reliable performance. Today, YIXIN TITANIUM summarizes application of titanium in medical industry.
About one million patients worldwide are treated annually for total replacement of arthritic hips and knee joints. The prostheses come in many shapes and sizes. Hip joints normally have a metallic femoral stem and head which locates into an ultrahigh molecular weight low friction polyethylene socket, both secured in position with polymethyl methacrylate bone cement. Some designs, including cementless joints, use roughened bioactive surfaces (including hydroxyapatite) to stimulate osseointegration, limit resorption and thus increase the implant lifetime for younger recipients. Internal and external bone-fracture fixation provides a further major application for titanium as spinal fusion devices, pins, bone-plates, screws, intramedullary nails, and external fixators.
A major change in restorative dental practice worldwide has been possible through the use of titanium implants. A titanium ‘root’ is introduced into the jaw bone with time subsequently allowed for osseointegration. The superstructure of the tooth is then built onto the implant to give an effective replacement.
Surgery to repair facial damage using the patients own tissue cannot always obtain the desired results. Artificial parts may be required to restore the ability to speak or eat as well as for cosmetic appearance, to replace facial features lost through damage or disease. Osseointegrated titanium implants meeting all the requirements of biocompatibility and strength have made possible unprecedented advances in surgery, for the successful treatment of patients with large defects and hitherto highly problematic conditions.
Titanium is regularly used for pacemaker cases and defibrillators, as the carrier structure for replacement heart valves, and for intra-vascular stents.
Titanium is suitable for both temporary and long term external fixations and devices as well as for orthotic callipers and artificial limbs, both of which use titanium extensively for its light weight, toughness and corrosion resistance.
A wide range of surgical instruments are made in titanium. The metal’s lightness is a positive aid to reducing any fatigue of the surgeon. Instruments are frequently anodised to provide a non reflecting surface, essential in microsurgical operations, for example in eye surgery. Titanium instruments withstand repeat sterilisation without compromise to edge or surface quality, corrosion resistance or strength. Titanium is non magnetic, and there is therefore no threat of damage to small and sensitive implanted electronic devices.