Blood coagulation meter: A low cost viscoelasticity based approach

B. Ghosh, B. Ramachandran, S. Anand, A. Salhan, L. D'Almeida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Blood Coagulation is an essential defense mechanism of the human body. In case of injury, it prevents excessive blood loss and reduces the chances of infection. In conditions like Hemophilia and von Willebrand's disease, clotting is insufficient. The coagulation process depends on certain clotting factors as well as the platelet count. A coagulometer is a device that measures the rate of coagulation of blood. The ones available in the market today are expensive and not affordable to the smaller hospitals and labs. We propose an alternative, innovative and economical design to make a device that can measure the rate and extent of coagulation. Our principle is that the conduction of vibrations is directly related to increasing viscosity. The basic mechanism of our device is passing mechanical waves through a column of blood and detecting the response using a piezofilm, which converts pressure into a voltage signal. As blood coagulates, its viscosity increases and thereby, the amplitude of the signal that is detected also increases with time. Once all the blood clots, the amplitude of the output should remain relatively constant. Upon performing analysis on the thromboelastogram obtained, certain significant parameters such as the envelope and the slope can be determined.

Original languageEnglish
Title of host publication2008 Cairo International Biomedical Engineering Conference, CIBEC 2008
DOIs
Publication statusPublished - 01-12-2008
Externally publishedYes
Event2008 Cairo International Biomedical Engineering Conference, CIBEC 2008 - Cairo, Egypt
Duration: 18-12-200820-12-2008

Conference

Conference2008 Cairo International Biomedical Engineering Conference, CIBEC 2008
CountryEgypt
CityCairo
Period18-12-0820-12-08

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

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  • Cite this

    Ghosh, B., Ramachandran, B., Anand, S., Salhan, A., & D'Almeida, L. (2008). Blood coagulation meter: A low cost viscoelasticity based approach. In 2008 Cairo International Biomedical Engineering Conference, CIBEC 2008 [4786069] https://doi.org/10.1109/CIBEC.2008.4786069