Potential of latex in closed loop impedance blood pump / Mohamad Mazwan Mahat … [et al.]

The final product successfully invented is latex based tube that used to be installed in a novel valve less pump fabricated in- house using laboratory equipment’s at the Universiti Teknologi MARA(UITM). It is aimed to pump blood in one direction to mimics the main function of the heart which equipped with a one-way valve to ensure flow in one direction. In order to explore the potential of latex as driving energy force in valve less impedance pump to provide pulsation flow, three experimental study carried out which consists of major steps namely design process, test rig setup and data acquisition. Experimental results indicated that latex induced flow tend to propagate wave lead to a continuous flow and it showed that there was a wide range of circumstances in which the pumping occurs, including changes in the position of the actuator, size and pinching frequency. From the experimental results obtained, the behaviours of latex material in the valve less pump can be explained in terms of the complex interaction between the propagating/reflecting waves and the volume suction due to the motion of the elastic tube. The final product outcome from this experiment can be used as a model for a new concept in circulatory support system for cardiac patients.