Over the previous 12 months, researchers on the Indian Institute of Science (IISc) have been engaged on options to handle the oxygen scarcity resulting from COVID-19. Two key efforts on this path have been the event of oxygen technology programs and oxygen concentrators.
The oxygen concentrator is an indigenous design developed by IISc researchers led by Praveen Ramamurthy, Professor within the Division of Supplies Engineering. The group had already been engaged on oxygen concentrators since March 2020. A prototype able to producing oxygen at greater than 93% purity at 5 litres per minute (LPM) and 82% at 10 LPM was developed by August 2020 itself. The researchers then modified this prototype which now delivers greater than 93% purity oxygen at 10 LPM inside three minutes. The steadiness and efficiency of the system was monitored constantly for greater than eight months. Medical trials have been accomplished, and the system was discovered to carry out on par with compressed oxygen cylinders.
Until date, the expertise has been transferred to 24 firms, and about 35 items have been equipped to numerous hospitals. Not too long ago, the Authorities of Karnataka issued a round for the provision of two items every to 2,508 public well being centres from the licensees, says a press launch.
One other resolution catering to wants of the hospitals is an oxygen technology system based mostly on expertise developed by an IISc staff together with researchers Arashdeep Singh and Anand M Shivapuji, and led by S Dasappa, Professor on the Centre for Sustainable Applied sciences. The method is predicated on a twin-bed swing adsorption system built-in with storage and discharge vessels, and numerous security programs. In one of many variants, a cylinder-filing mechanism has additionally been integrated utilizing a lift pump. The oxygen produced fulfills the standard necessities prescribed by Indian Pharmacopeia and can be utilized in ICUs/CCUs/OTs and different medical wards. Final month, the primary unit based mostly on this method was put in on the Pobbathi Medical Centre in Bengaluru.
On 15 August 2021, Prof Rangarajan, the Director of IISc, inaugurated an open-source design for a medical oxygen technology system with 50 LPM capability. The system can be put in at St Mary’s Polyclinic in Lucknow. A novel characteristic of this method is the aptitude to fill about ten 47-litre cylinders at 200 bar stress inside 24 hours, other than supplying oxygen to affected person beds. Preparations are underway to ship the system to the Lucknow hospital.
IISc has additionally signed expertise switch agreements with 4 businesses from throughout the nation for putting in oxygen technology programs at numerous capacities (50 LPM-1000 LPM) to fulfill the necessities of hospitals.