Sociotechnical system design to support disaster intervention development teams.

Teams are critical in developing effective responses to various disasters and crises. This study defines a new type of response team: a disaster intervention development team, charged with rapidly developing emergent and innovative interventions to aid disaster response. In this case study, we analyzed the SHIELD Enterprise, a disaster intervention development team that developed and deployed a diagnostic testing system for community surveillance and diagnosis to respond to the COVID-19 infectious disease outbreak. We conducted interviews with 27 team members to identify the work system barriers and facilitators they experienced and to analyze the influence on team performance to inform sociotechnical system design for future teams. We identified 215 barriers and 238 facilitators, which we inductively categorized into eight overarching groups, i.e., categories, that included ambiguity, team processes, technology, design and project requirements, knowledge and expertise, organization, task work and environment. Our findings led to eight sociotechnical system design principles to support future disaster intervention development teams.

Emergency ventilator for COVID-19.

The COVID-19 pandemic disrupted the world in 2020 by spreading at unprecedented rates and causing tens of thousands of fatalities within a few months. The number of deaths dramatically increased in regions where the number of patients in need of hospital care exceeded the availability of care. Many COVID-19 patients experience Acute Respiratory Distress Syndrome (ARDS), a condition that can be treated with mechanical ventilation. In response to the need for mechanical ventilators, designed and tested an emergency ventilator (EV) that can control a patient's peak inspiratory pressure (PIP) and breathing rate, while keeping a positive end expiratory pressure (PEEP). This article describes the rapid design, prototyping, and testing of the EV. The development process was enabled by rapid design iterations using additive manufacturing (AM). In the initial design phase, iterations between design, AM, and testing enabled a working prototype within one week. The designs of the 16 different components of the ventilator were locked by additively manufacturing and testing a total of 283 parts having parametrically varied dimensions. In the second stage, AM was used to produce 75 functional prototypes to support engineering evaluation and animal testing. The devices were tested over more than two million cycles. We also developed an electronic monitoring system and with automatic alarm to provide for safe operation, along with training materials and user guides. The final designs are available online under a free license. The designs have been transferred to more than 70 organizations in 15 countries. This project demonstrates the potential for ultra-fast product design, engineering, and testing of medical devices needed for COVID-19 emergency response.