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Infusion pumps designed for enteral (i.e., via the digestive tract) administration of feeding solutions (e.g., commercially prepared formulas, blenderized foods) that provide an accurate control of the flow of liquid. These pumps usually include linear or rotary peristaltic mechanisms; less frequently, cassette pumps, which repeatedly compress a specific amount of fluid into a cassette, are used. Rotatory mechanisms consist of a section of flexible tubing that is held against a set of revolving rollers by tension on the anchored section of the tubing. Linear peristaltic pumps push fluids along a linear section of tubing with a series of fingerlike projections and an opposing surface. Many pumps include memory for the dose rate, dose settings, and volume infused, as well as visible and/or audible alarms to alert the user to flow changes or malfunctions. Enteral feeding pumps are used in patients who are unable or unwilling to consume adequate nutrients and are without gastrointestinal complications. Enteral pumps deliver the feeding solutions to various locations in the stomach and bowel through temporary feeding tubes (e.g., nasogastric tubes) or surgically implanted tubes (e.g., gastrostomy tubes, jejunostomy tubes). They are used in healthcare facilities (e.g., hospitals, nursing homes) and at home.
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