A Biomechanical Evaluation of a Novel Airbag Bicycle Helmet Concept for Traumatic Brain Injury Mitigation

In this study, a novel expandable bicycle helmet, which integrates an airbag system into the conventional helmet design, was proposed to explore the potential synergetic effect of an expandable airbag and a standard commuter-type EPS helmet. The traumatic brain injury mitigation performance of the proposed expandable helmet was evaluated against that of a typical traditional bicycle helmet. A series of dynamic impact simulations on both a helmeted headform and a representative human head with different configurations were carried out in accordance with the widely recognised international bicycle helmet test standards. The impact simulations were initially performed on a ballast headform for validation and benchmarking purposes, while the subsequent ones on a biofidelic human head model were used for assessing any potential intracranial injury. It was found that the proposed expandable helmet performed admirably better when compared to a conventional helmet design—showing improvements in impact energy attenuation, as well as kinematic and biometric injury risk reduction. More importantly, this expandable helmet concept, integrating the airbag system in the conventional design, offers adequate protection to the cyclist in the unlikely case of airbag deployment failure.

Penerapan Face Shield Bagi Tenaga Medis Untuk Menangani Pasien Covid-19 di Kota Batu Jawa Timur

The purpose of this activity is to assist the government in providing and distributing face shields for medical personnel at referral hospitals to treat covid-19 patients. At first we analyzed the problems with partners (hospitals and community health centers). The results of the analysis show that hospitals and health centers lack a helmet-face shield for medical personnel to treat covid-19 patients. Based on the results of discussions and requests from the partner. Then the design is carried out to manufacture a helmet-face shield. There are 2 PPE made, The first type is only a face shield and the second type is obtained a helmet design that is equipped with a face shield or can be called a helmet-face shield. At the end of the activity, questionnaires were distributed to respondents consisting of doctors, nurses and other medical personnel. Respondents were selected randomly in health facilities in Batu, East Java. The response from medical personnel has generally been positive. This can be seen from the questionnaires distributed to respondents. More than 90% of the results of the questionnaire stated that helmet-face shield and face shield products could be accepted by health workers.