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Air pillow soft pneumatic actuator suitable for bioimpedance

Hydraulics and Pneumatics

Intro

Bioimpedance measurements are used to assess the electrical properties of tissues and organs. This information can be used to diagnose a variety of medical conditions, such as heart disease, diabetes, and cancer. Soft pneumatic actuators (SPAs) are made of soft, deformable materials that are inflated with air to create motion. SPAs are well-suited for a wide range of applications, including bioimpedance measurements.

In this study, we present the design and implementation of a variable inclined air pillow SPA suitable for bioimpedance applications. The SPA is made of a soft, silicone rubber material and is inflated with air. The air pillow is inclined at an angle, which allows the SPA to move in a variety of directions. The SPA is controlled by a microcontroller, which allows it to be precisely positioned.

Design

The SPA actuator has different geometrical parameters like the number of air pillows (N), wall thickness (t), total length (L), air pillow height (h), total air pillow height and the inclination angle of air pillow (β).

The proposed SPA, is studied at different β from 0° to 20° and actuator total length (L) is dependent on β angle.

Air

Pillow

Air Pillow

  • Soft, silicone rubber material
  • Inflated with air
  • Inclined at an angle of 45 degrees

Frame

  • Made of aluminum
  • Supports the air pillow
  • Lightweight and easy to assemble

Frame

Controller

  • Microcontroller
  • Controls the inflation and deflation of the air pillow
  • Programmed to move the SPA in a variety of patterns

Controller

Implementation

  • Fabricated using a 3D printer
  • Air pillow made of a soft, silicone rubber material
  • Frame made of aluminum
  • Controller programmed to move the SPA in a variety of patterns

Implelmentation

Testing

Testing

  • The SPA was tested using a variety of objects.

  • The SPA was able to gently grasp the objects and move them in a variety of directions.

  • The SPA was also able to accurately measure the electrical properties of the objects.

Conclusion

Conclusion

The variable inclined air pillow SPA is a promising new technology for bioimpedance measurements.

The SPA is soft, compliant, and easy to use.

The SPA can be used to gently grasp objects during bioimpedance measurements, which helps to prevent damage to the tissue and ensures accurate measurements.

Team

Team

Members

2012198 - Srimathi D

2012199 - Sujith P

2012201 - Thoufik Abdullah M

Thank You

Thanks!

for your patience

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