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A peristaltic pump, also commonly known as a roller pump, is a type of positive displacement pump used for pumping a variety of fluids. The fluid is contained in a flexible tube fitted inside a circular pump casing. Most peristaltic pumps work through rotary motion, though linear peristaltic pumps have also been made.
Small-volume pumps infuse hormones, such as insulin, or other medicines, such as opiates. Within these classes, some pumps are designed to be portable, others are designed to be used in a hospital, and there are special systems for charity and battlefield use. Large-volume pumps usually use some form of peristaltic pump. Classically, they use ...
The pumping system is either a peristaltic pump (in the simplest liquid ventilators) or two piston pumps (in the most advanced liquid ventilators). Because of the PFC viscosity , the head loss in the airways requires a low negative driving pressure during the expiration phase that can collapse the airways.
This is commonly referred to as a roller pump, or peristaltic pump. The pumps are more affordable than their centrifugal counterparts but are susceptible to over-pressurization if the lines become clamped or kinked. [18] They are also more likely to cause a massive air embolism and require constant, close supervision by the perfusionist. [10]
Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...
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