IMPROV ($229) is a dual-chamber piston type ventilator. There is an immediate need for an economical easy to assemble and modify non-FDA approved ventilator. The system specifically targets supplies and materials readily available throughout the U.S.A. The cylinder is made of 6” plastic pipe. The cap and piston can be made on FDM 3D printers readily available at maker spaces, schools, and universities throughout the nation. Hardware including electronics is based on readily available COTS parts. The powertrain system uses Vex Robotics motors, gearboxes, shafts, bearings and couplers. Vex Robotics components are used throughout the nation by middle school and high school robotics programs. These components can be substituted for other COTS components but these are widespread and available with the cancellation of the 2020 FIRST Robotics season. The inhalation/exhalation valves and mounting frame can be made via laser cutting, CNC routing, waterjet abrasive cutting, or by manual methods. Respiration volume and rate can be changed but require disassembly of the system to insert different size cams and gearboxes. With implementation of a motor controller respiration rate can be easily changed. This is a non-FDA approved untested prototype. Its safety and reliability have not been evaluated, but the hope is this system can be developed to fill the need at this time. The files and assembly instructions will be published soon.
IMPROV Prototype 1 Images