The PolyVent educational platform: An open mechanical ventilation platform for research and education.

IF 2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC HardwareX Pub Date : 2025-01-07 eCollection Date: 2025-03-01 DOI:10.1016/j.ohx.2024.e00615

Robert L Read, Nathaniel Bechard, Victor Suturin, Antal Zuiderwijk, Michelle Mellenthin

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Abstract

The PolyVent is an open source mechanical ventilator meant for research and education. It prioritizes openness, modularity, repairability, and modifiability. An ESP32 microcontroller controls a proportional valve which precisely modulates pressure and flow from a mixing chamber into the airway. This chamber is fed with pressurized oxygen and medical air. Solenoid valves control both gas mixing and patient inflation. The PolyVent is controllable through a command-line interface over the serial port, a convenient point of access for researchers and instructors. The VentMon, a separate IoT-enabled spirometer, provides convenient instrumentation for classroom teaching and geodistributed research teams. A "cake-dome" design allows the PolyVent to operate with or without its transparent cover in place, for easy troubleshooting and instruction. An open footprint optimizes engineering change rather than compactness. The electronics are packaged into cards on a standardized backplane, allowing one to extend functionality through the addition of new cards. The VentOS open source software that drives the machine makes it a universal and modifiable research software platform. It is intended to be the medical gas production heart of an open source human respiration research and education ecosystem, and aims to be the starting point for open source medical ventilator designs.

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PolyVent 是一种开源机械通风机，用于研究和教育。它将开放性、模块化、可维修性和可修改性放在首位。ESP32 微控制器可控制一个比例阀，该阀可精确调节从混合室进入气道的压力和流量。混合室由加压氧气和医用空气组成。电磁阀控制气体混合和患者充气。PolyVent 可通过串行端口的命令行界面进行控制，这为研究人员和教师提供了便利。VentMon 是一款独立的物联网肺活量计，为课堂教学和地理分布广泛的研究团队提供了便捷的仪器设备。蛋糕圆顶 "设计使 PolyVent 可以在有透明盖或无透明盖的情况下运行，便于故障排除和指导。开放式占地面积优化了工程变化而非紧凑性。电子元件封装在标准化背板上的板卡中，可通过添加新板卡扩展功能。驱动机器的 VentOS 开放源码软件使其成为一个通用的、可修改的研究软件平台。它旨在成为开源人体呼吸研究和教育生态系统的医用气体生产核心，并成为开源医用呼吸机设计的起点。

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来源期刊

HardwareX Engineering-Industrial and Manufacturing Engineering

CiteScore

4.10

自引率

18.20%

发文量

124

审稿时长

24 weeks

期刊介绍： HardwareX is an open access journal established to promote free and open source designing, building and customizing of scientific infrastructure (hardware). HardwareX aims to recognize researchers for the time and effort in developing scientific infrastructure while providing end-users with sufficient information to replicate and validate the advances presented. HardwareX is open to input from all scientific, technological and medical disciplines. Scientific infrastructure will be interpreted in the broadest sense. Including hardware modifications to existing infrastructure, sensors and tools that perform measurements and other functions outside of the traditional lab setting (such as wearables, air/water quality sensors, and low cost alternatives to existing tools), and the creation of wholly new tools for either standard or novel laboratory tasks. Authors are encouraged to submit hardware developments that address all aspects of science, not only the final measurement, for example, enhancements in sample preparation and handling, user safety, and quality control. The use of distributed digital manufacturing strategies (e.g. 3-D printing) is encouraged. All designs must be submitted under an open hardware license.