Tracking the results of open-heart surgeries may soon become easier and low cost, thanks to a simple, cost-effective blood flow meter that Indian scientists have developed. India is currently fully dependent on imported blood flow meters for precise measurement of blood flow rates, a critical parameter to measure the outcome of open-heart surgeries.
However, it is expensive as each unit could cost anything in the range of Rs 25 to 30 Lakhs. The team of researchers at the Sree ChitraTirunal Institute for Medical Sciences and Technology (SCTIMST), has developed a simple, advanced, and cost-effective blood flow meter.
This palm-sized device measures the flow rate of blood using a novel magnetic method and a signal conditioning technique. The device has a mechanism to produce a magnetic field, an electronic measurement system, and a disposable biocompatible tube fitted with electrodes which are kept over the magnetic field. When blood passes through the tube, under the influence of this magnetic field, a voltage is generated across the electrodes, which is proportional to the rate of blood flow.
The novel method of generation of the magnetic field and detection of the voltage gives the device better accuracy of measurements.
The technical know-how of this portable battery device, which can be operated with battery, has been transferred to EnProducts, a company based in Kochi, Kerala, for commercial production. The Make in India concept is another classic case of AtmaNirbhar Bharat and can reduce the cost of production of the device considerably to a few thousands of rupees. In addition to its application in bypass surgery, this device can be used for measuring flow of conductive fluids for various industrial applications.
The device has undergone laboratory tests and preclinical animal evaluations and has all the essential features to perform the necessary functions. It is compliant with national and international standards and guidelines and is manufactured using components sourced from established supply chains within the country.
The Institute has applied for a patent.