Browsing by Author "Subhash, NN"

Now showing 1 - 8 of 8
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    Chitra Disinfection Gateway for the Management of COVID 19 in Public Entry Places
    (Transactions of the Indian National Academy of Engineering, 2020-07) Krishnan, J; Subhash, NN; Muraleedharan, CV; Mohanan, PV; Nandakumar, M; Neethu, S; Rethnagireeshwar, R
    Chitra Disinfection Gateway is meant for the decontamination of personnel entering a cleaner private space from a public space. This is equipped with an arrangement for generating hydrogen peroxide mist and ultraviolet rays. Hydrogen peroxide mist will decontaminate clothes, hands and the bags a person carries. The ultraviolet system will decontaminate the chamber once the person has moved out. The system is controlled electronically by sensors and actuators. The sensors fixed in the chamber detect the entry of a person and initiates the hydrogen peroxide atomization process. The person is required to walk through the chamber. When the person exits the chamber, the system will put off the hydrogen peroxide atomization system and will turn on the UV lamp inside the chamber to decontaminate it. The ultraviolet system will be ON for a predefined time and after the process, the next person can enter the walkway. The whole process takes a maximum of 40 s. The safety and efficacy of the system have been validated experimentally through both in vivo and in vitro studies.
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    Development of titanium nitride coated coronary stent system ( Project - 8152 )
    (SCTIMST, 2023-03-31) Subhash, NN; Muraleedharan, C.V; Harikrishnan,S
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    Diabetic Foot Ulcer Offloader ( Project - 7444 )
    (SCTIMST, 2021-10-20) Subhash, NN; Muraleedharan, CV
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    Emergency Response Isolation Systems (Project - 8228)
    (SCTIMST, 2020-06-12) Subhash, NN; Muraleedharan, CV
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    Prosthetics and orthotics for persons with movement disabilities in India in the postpandemic milieu
    (Prosthet Orthot Int, 2023-11) Prajapati, AK; Komath, M; Subhash, NN
    The SARS-CoV-2 disease had a severe impact on global socioeconomic growth, and its harmful effects continue with virus mutation. Over the past 3 years, the pandemic has caused isolation, mental trauma, stress, financial losses, and various health complications in individuals. Recent reports have stressed the sufferings of the physically abled population. However, we should not neglect the challenges faced by the disabled population, which were more severe in many ways due to their dependency on others at various levels. The strategies implemented to contain the virus have further aggravated their sufferings and made it even worse because health care priorities were skewed toward public-centered care. As a result, it is difficult to determine the extent of care the disabled population received during the pandemic. Moreover, a single-centered study reports that amputations in India increased by 54.1% compared with those during the prepandemic era. This indicates the need for special attention to the physically disabled community, especially persons with movement disabilities. These individuals are partially dependent and have the potential to make significant contributions to the gross domestic product if included in the human resources pool. The Indian government had launched various initiatives to improve their living status. But delays in policy implementation, reduction in budget allocation, and the ongoing pandemic have derailed the efforts. For these reasons, this article emphasizes several challenges in movement disability care. In addition, it makes recommendations for improving the quality of life of persons with movement disabilities. These include collaboration, creating start-up businesses, applying state-of-the-art logistics, establishing a technological ecosystem, raising public awareness, accessing high-quality care, and using contemporary medical devices.
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    RIGID KNEE BRACE FOR OSTEOARTHRITIS (Project - 7445)
    (SCTIMST, 2022-10-20) Subhash, NN; Muraleedharan, CV
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    Structural performance assessment of FUPRO grace foot (Project - 7448)
    (SCTIMST, 2022-11-02) Subhash, NN; Muraleedharan, CV
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    TTK Chitra tilting disc heart valve model TC2: An assessment of fatigue life and durability
    (Proc Inst Mech Eng H., 2017-08) Subhash, NN; Rajeev, A; Sujesh, S; Muraleedharan, CV
    Average age group of heart valve replacement in India and most of the Third World countries is below 30 years. Hence, the valve for such patients need to be designed to have a service life of 50 years or more which corresponds to 2000 million cycles of operation. The purpose of this study was to assess the structural performance of the TTK Chitra tilting disc heart valve model TC2 and thereby address its durability. The TC2 model tilting disc heart valves were assessed to evaluate the risks connected with potential structural failure modes. To be more specific, the studies covered the finite element analysis-based fatigue life prediction and accelerated durability testing of the tilting disc heart valves for nine different valve sizes. First, finite element analysis-based fatigue life prediction showed that all nine valve sizes were in the infinite life region. Second, accelerated durability test showed that all nine valve sizes remained functional for 400 million cycles under experimental conditions. The study ensures the continued function of TC2 model tilting disc heart valves over duration in excess of 50 years. The results imply that the TC2 model valve designs are structurally safe, reliable and durable.