Title :
The Application of Laser Welding on Left Ventricular Assist Device (LVAD)
Author :
Fan, Y. ; Tansley, G.D. ; Fan, H. ; Niu, J.
Author_Institution :
Sch. of Mater. Sci. & Eng., China Univ. Min. & Technol., Xuzhou, China
Abstract :
A successful and useful treatment for end-stage heart failure is Left ventricular assist device (LVAD). An important part - a hydrodynamically suspended impeller exposed to corrosive conditions, required to sealed hermetically into micro packages. Laser beam welded (LBW) Ti6Al4V alloy has been adopted in anti-corrosion micro packages for the impeller of a (LVAD). Thin and narrow welds were required for such medical equipment. Pulsed Nd:YAG welding was successfully adopted as sealing method for the impeller.
Keywords :
aluminium alloys; biomedical equipment; biomedical materials; cardiology; corrosion protection; corrosion protective coatings; electronics packaging; impellers; laser applications in medicine; laser beam welding; neodymium; titanium alloys; vanadium alloys; yttrium compounds; TiAlV; YAG:Nd; anticorrosion micropackages; corrosive conditions; end-stage heart failure; hermetic sealing method; hydrodynamically suspended impeller; laser welding; left ventricular assist device; medical equipment; pulsed Nd:YAG welding; Heart; Impellers; Laser beams; Laser theory; Materials; Metals; Welding;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2011 Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6555-2
DOI :
10.1109/SOPO.2011.5780642
