A NOVEL APPROACH IN IDENTIFICATION OF BLOOD GROUP USING LASER TECHNOLOGY

Priyadharshini.R, Ramya.S, Kalaiyarasi.S, Kalpana Devi.S, SuthathiraVanitha.N

Abstract: In this research paper, the proposed idea is to replace the manual work in clinical laboratories for identifying the blood group. Nowadays even though automation plays a vital role in all medical applications but still no device is available to determine the blood group automatically. Usually, the blood group analysis is made by the technicians in the laboratories. They are using the following methods for analysing the blood group 1.ABO forward typing 2.ABO reverse typing 3.Rhesus type testing. Among these three techniques ABO type testing and Rhesus type testing is most widely used in all laboratories. In ABO testing, the antigen is added to the blood sample and based on the reaction between antigen and antibody, diagnosis is made. In Rhesus type of testing, the positive and negative type of the blood group can be determined. Although, it is simple to detect but in handling with large number of samples, it is tedious to do and it may also leads to wrong analysis. To overcome these problems, the proposed LASER technique is used. This is based on the principle, that the LASER intensity changes due to the occurrence of clumping in the blood sample which in turn changes the density of the blood sample. This variation is sensed by the level of the energization of the photocell. The output from the detector is in the form of voltage which is fed to the comparator which decides the blood group using embedded controller

Keywords: LASER beam, antibody, Photocell, Clumping, Antigens, Blood sample, Embedded

DOI: https://doi.org/10.15623/ijret.2014.0323005