A peristaltic pump is a type of positive displacement pump that moves fluids through a tube by creating a series of wave-like contractions. This action mimics the natural movement of muscles in the digestive tract, known as peristalsis. The pump consists of a rotating mechanism that compresses the tube, pushing the fluid forward while preventing backflow. These pumps are commonly used in various applications, including medical devices, laboratory equipment, and industrial processes. They are particularly valued for their ability to handle viscous fluids and maintain a sterile environment, as the fluid only contacts the inner surface of the tube, minimizing contamination risks.