This paper presents an innovative design for an ultra low-cost insulin pump, aiming to provide an accessible alternative to commercially available pumps, which often cost upwards of $6,500. The open-source insulin pump can be built for a materials cost of just $89.85, making it a practical solution for patients who require insulin delivery but cannot afford traditional devices. The design not only emphasizes affordability but also customizability, as it operates on open-source software.
Key Features
- Ultra Low Cost: The total hardware cost is approximately $89.85, significantly lower than standard insulin pumps.
- Open Source Design: Users can customize the software and hardware according to their needs.
- Compact Size: The device measures 85 mm x 55 mm x 25 mm, allowing for easy portability.
- Rechargeable Battery: Powered by AAA batteries with a USB mini port for recharging.
- Accurate Delivery: The pump’s accuracy has been validated against commercial models, showing comparable performance.
- Extended Control: Future capabilities may allow control via Bluetooth or wired connections to mobile devices.
Specifications
| Specification | Details |
|---|---|
| Device Name | Ultra Low-Cost Insulin Pump |
| Subject Area | Biomedical Engineering, Electrical Engineering, Mechanical Engineering |
| Cost of Hardware | $89.85 |
| Dimensions | 85 mm x 55 mm x 25 mm |
| Power Supply | 2 AAA batteries, rechargeable via USB |
| Control Method | MCU (Micro-Controller Unit) |
| Open Source License | CC BY 4.0 |
| Source File Repository | GitHub Repository |
Design Files
- Complete design and software files are available for download. Users can find the files at the following link:
Build Instructions
- PCB Assembly: Assemble the printed circuit board (PCB) using surface mount technology (SMT) components.
- Programming: Load the software onto the MCU using Atmel Studio and a compatible programmer.
- Mechanical Assembly: Assemble the motor, plunger, and housing according to the provided instructions.
- Testing and Validation: Conduct tests to ensure the device delivers insulin accurately over time.
Operation Instructions
- Setup: Insert the insulin cartridge and set the device’s date and time using the software.
- User Interaction: Use the buttons to adjust insulin delivery rates and switch between delivery modes (basal and bolus).
- Safety Considerations: Handle the device with care, especially when using needles, and ensure proper disposal of used materials.
The open-source ultra low-cost insulin pump provides a promising alternative for insulin-dependent patients, particularly in regions where access to traditional pumps is limited. The design emphasizes affordability without sacrificing quality or accuracy, making it a significant advancement in diabetes management technology.
