Abstract
The study addresses the results concerning the laser welding technology of the titanium circulatory support blood pump Religa Heart ROT. Pulse laser welding parameters were determined and selected. The influence of the pulse welding parameters and other conditions of welding process on the magnetic induction distribution of the mechanical circulatory support blood pump was investigated.
Highlights
The Foundation of Cardiac Surgery Development in Zabrze (FCSD), The Artificial Heart Laboratory, conducts intensive work on the construction and manufacture of a cardiac support pump
Religa Heart ROT is a miniature centrifugal pump, implanted through the tip directly into the left ventricle of the heart, which allows it to be placed in the pericardial sac just in the vicinity of the heart
One of the key elements of the RH ROT is the pump rotor, which is a multi-part construction that possesses permanent magnets that are extremely important for its proper operation, enabling the pump to rotate in a static magnetic field
Summary
The Foundation of Cardiac Surgery Development in Zabrze (FCSD), The Artificial Heart Laboratory, conducts intensive work on the construction and manufacture of a cardiac support pump. Religa Heart ROT is a miniature centrifugal pump, implanted through the tip directly into the left ventricle of the heart, which allows it to be placed in the pericardial sac just in the vicinity of the heart. It pumps blood from the left ventricle to the aorta thanks to the spinning of a miniature rotor (closed channels) suspended in a static magnetic field and rotating at a rotational speed of 2,500 to 5,500 rpm thanks to the use of a variable magnetic field drive. The use of additional finishing treatments, including polishing of the weld, will allow the removal of sharp edges that expose blood to traumatization
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