3D Printing for Medical Applications: Current State of the Art and Perspectives during the COVID-19 Crisis

The coronavirus SARS-CoV-2 pandemic has affected over one hundred million people worldwide and has resulted in over two million deaths. In addition to the toll that coronavirus takes on the health of humans infected with the virus and the potential long term effects of infection, the repercussions of the pandemic on the economy as well as on the healthcare system have been enormous. The global supply of equipment necessary for dealing with the pandemic experienced extreme stress as healthcare systems around the world attempted to acquire personal protective equipment for their workers and medical devices for treating COVID-19. This review describes how 3D printing is currently being used in life saving surgeries such as heart and lung surgery and how 3D printing can address some of the worldwide shortage of personal protective equipment, by examining recent trends of the use of 3D printing and how these technologies can be applied during and after the pandemic. We review the use of 3D printed models for treating the long term effects of COVID-19. We then focus on methods for generating face shields and different types of respirators. We conclude with areas for future investigation and application of 3D printing technology.

The ethics and politics of addressing health inequalities.

Social determinants of health are responsible for a large proportion of disease which disproportionately affects deprived population groups, resulting in striking disparities in life expectancy and quality of life. Even systems with universal access to healthcare (such as the UK's NHS) can only mitigate some consequences of health inequalities. Instead substantial societal measures are required both to reduce harmful exposures and to improve standards of housing, education, work, nutrition and exercise. The case for such measures is widely accepted among healthcare professionals but, in wider discourse, scepticism has remained about the role of government and society in improving life chances along with the belief that responsibility for health and wellbeing should rest with individuals themselves. The stark inequalities exposed by the coronavirus pandemic could be an opportunity to challenge this thinking. This paper argues that doctors should do more to persuade others of the need to address health inequalities and that to achieve this, it is important to understand the ethical and philosophical perspectives that are sceptical of such measures. An approach to gaining greater support for interventions to address health inequalities is presented along with reflections on effective political advocacy which is consistent with physicians' professional values.